/* ==========================================================================
   En Classe - Main Stylesheet
   A classroom management tool with timer, traffic light, calendar, and notes
   ========================================================================== */

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */
:root {
    /* Colors */
    --color-primary: #06b6d4;
    --color-primary-hover: #0891b2;
    --color-secondary: #2c3e50;
    --color-accent-orange: #ff9800;
    --color-accent-red: #f44336;
    --accent-color: #e74c3c;

    /* Light theme */
    --bg-body: #f5f7fa;
    --bg-section: #ffffff;
    --bg-input: #f5f5f5;
    --text-primary: #2c3e50;
    --text-secondary: #666666;
    --text-muted: #aaaaaa;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 0.75rem;
    --radius-full: 50%;

    /* Typography */
    --font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-mono: monospace;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Dark theme variables */
html.dark-mode,
body.dark-mode {
    --bg-body: #1a1a1a;
    --bg-section: #2d2d2d;
    --bg-input: #333333;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --border-color: #444444;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --color-primary: #22d3ee;
    --color-primary-hover: #06b6d4;
}

html.dark-mode {
    background: #1a1a1a;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
* {
    box-sizing: border-box;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    background: var(--bg-body);
    font-family: var(--font-family);
    color: var(--text-primary);
    position: relative;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(1.75rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-xl);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    width: 100%;
}

h1 i {
    margin-right: 10px;
}

.site-title {
    font-family: 'Pacifico', cursive;
    font-size: clamp(2.35rem, 6.6vw, 4.6rem);
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0.5px;
    color: #06b6d4;
}

.site-title i {
    font-size: clamp(2rem, 5.6vw, 3.9rem);
    color: #06b6d4;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

h2 i {
    margin-right: 8px;
}

/* Font size classes for notes */
.font-size-1 { font-size: 9px; }
.font-size-2 { font-size: 10px; }
.font-size-3 { font-size: 11px; }
.font-size-4 { font-size: 12px; }
.font-size-5 { font-size: 13px; }
.font-size-6 { font-size: 14px; }
.font-size-7 { font-size: 15px; }

/* ==========================================================================
   Layout - Grid Container
   ========================================================================== */
.grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto auto auto auto auto;
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.grid-item {
    background: var(--bg-section);
    border-radius: var(--radius-xl);
    box-shadow: 0 2px 5px var(--shadow-color);
    padding: var(--spacing-lg);
    width: 100%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInUp 0.5s ease both;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.grid-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px var(--shadow-color);
}

/* Grid positioning */
.calendar-section.grid-item {
    grid-row: 1;
    grid-column: 1 / -1;
    align-items: stretch;
}

.clock-section.grid-item {
    grid-row: 2;
    grid-column: 1 / -1;
    align-items: stretch;
}

.timer-section.grid-item {
    grid-row: 3;
    grid-column: 1;
    min-height: 36rem;
}

.timer-section h2,
.traffic-section h2 {
    margin-top: 0;
}

.traffic-section.grid-item {
    grid-row: 3;
    grid-column: 2;
    min-height: 36rem;
}

.notes-section.grid-item {
    grid-row: 4;
    grid-column: 1 / -1;
    min-height: 20rem;
}

.notes-section.grid-item.is-collapsed {
    min-height: 0;
}

.reminders-section.grid-item {
    grid-row: 5;
    grid-column: 1 / -1;
    align-items: stretch;
}

/* ==========================================================================
   Weather Line
   ========================================================================== */
.weather-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.weather-line i {
    color: var(--color-accent-orange);
}

/* ==========================================================================
   Timer Section
   ========================================================================== */
.timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: var(--spacing-lg);
}

.timer-wrapper {
    width: min(18rem, 80vw);
    height: min(18rem, 80vw);
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.timer-display {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(2rem, 8vw, 3.2rem);
    font-family: var(--font-family-mono);
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
    position: relative;
    background: conic-gradient(#06b6d4 var(--progress, 100%), var(--bg-input) var(--progress, 100%));
    transition: background var(--transition-normal), box-shadow 0.3s ease;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.12);
}

body.dark-mode .timer-display {
    background: conic-gradient(#ffffff var(--progress, 100%), var(--bg-input) var(--progress, 100%));
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.06);
}

.timer-display::before {
    content: '';
    position: absolute;
    width: calc(100% - 16px);
    height: calc(100% - 16px);
    border-radius: var(--radius-full);
    background: var(--bg-section);
}

.timer-display span {
    position: relative;
    z-index: 2;
    color: var(--text-primary);
}

/* Timer alert animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes flash {
    0%, 100% { background: conic-gradient(#06b6d4 0%, var(--bg-input) 0%); }
    50% { background: conic-gradient(var(--color-accent-orange) 0%, var(--bg-input) 0%); }
}

@keyframes flash-dark {
    0%, 100% { background: conic-gradient(#ffffff 0%, var(--bg-input) 0%); }
    50% { background: conic-gradient(var(--color-accent-orange) 0%, var(--bg-input) 0%); }
}

.timer-display.alert {
    animation: pulse 1.5s infinite, flash 1s infinite;
}

body.dark-mode .timer-display.alert {
    animation: pulse 1.5s infinite, flash-dark 1s infinite;
}

.timer-display.alert span {
    color: var(--color-accent-orange);
    font-weight: bold;
    text-shadow: 0 0 8px rgba(255, 152, 0, 0.3);
}

/* Timer settings */
.timer-settings {
    width: 100%;
}

.time-inputs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
    width: 100%;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-group label {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.time-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.time-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 0.8rem;
}

.time-btn:hover {
    background: #06b6d4;
    color: white;
}

body.dark-mode .time-btn:hover {
    background: #ffffff;
    color: #1a1a1a;
}

.time-btn:active {
    transform: scale(0.95);
}

.time-btn:disabled {
    background: var(--bg-input);
    color: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.time-value {
    min-width: 32px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-family-mono);
}

/* Timer controls */
.timer-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.timer-controls button {
    width: 3.5rem;
    height: 3.5rem;
    border: none;
    border-radius: var(--radius-full);
    background: #06b6d4;
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-controls button i {
    font-size: 1.3rem;
}

.timer-controls button:hover {
    transform: translateY(-2px);
    background: #0891b2;
}

body.dark-mode .timer-controls button {
    background: #ffffff;
    color: #1a1a1a;
}

body.dark-mode .timer-controls button:hover {
    background: #e0e0e0;
}

.timer-controls button:active {
    transform: translateY(1px);
}

.timer-controls button:disabled {
    background: #cccccc;
    cursor: not-allowed;
    transform: none;
}

body.dark-mode .timer-controls button:disabled {
    background: #555555;
}

#resetBtn i {
    transition: transform var(--transition-normal);
}

#resetBtn:hover i {
    transform: rotate(180deg);
}

/* Multi-timer link */
.multi-timer-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: var(--spacing-lg);
    padding: 0.55rem 1.2rem;
    border-radius: 0.6rem;
    background: rgba(6, 182, 212, 0.08);
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.25s ease, transform 0.2s ease;
}

.multi-timer-link:hover {
    background: rgba(6, 182, 212, 0.15);
    transform: translateY(-1px);
}

.multi-timer-link i {
    font-size: 0.85rem;
}

body.dark-mode .multi-timer-link {
    background: rgba(34, 211, 238, 0.1);
    color: #22d3ee;
}

body.dark-mode .multi-timer-link:hover {
    background: rgba(34, 211, 238, 0.18);
}

/* ==========================================================================
   Traffic Light Section
   ========================================================================== */
.traffic-light {
    height: 340px;
    width: 110px;
    margin: 0 auto;
    background: var(--bg-section);
    padding: 15px;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 8px var(--shadow-color);
    border: 2px solid var(--border-color);
}

.light {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    background: var(--bg-section);
    box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.1);
}

.light-inner {
    width: calc(100% - 8px);
    height: calc(100% - 8px);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

/* Light colors - inactive state */
.light.red .light-inner {
    background: rgba(244, 67, 54, 0.15);
    border: 3px solid rgba(244, 67, 54, 0.3);
}

.light.yellow .light-inner {
    background: rgba(255, 152, 0, 0.15);
    border: 3px solid rgba(255, 152, 0, 0.3);
}

.light.green .light-inner {
    background: rgba(76, 175, 80, 0.15);
    border: 3px solid rgba(76, 175, 80, 0.3);
}

/* Light colors - active state */
.light.red[data-state="active"] .light-inner {
    background: rgba(244, 67, 54, 0.9);
    box-shadow: 0 0 35px rgba(244, 67, 54, 0.7), 0 0 60px rgba(244, 67, 54, 0.4);
    border-color: #f44336;
}

.light.yellow[data-state="active"] .light-inner {
    background: rgba(255, 152, 0, 0.9);
    box-shadow: 0 0 35px rgba(255, 152, 0, 0.7), 0 0 60px rgba(255, 152, 0, 0.4);
    border-color: #ff9800;
}

.light.green[data-state="active"] .light-inner {
    background: rgba(76, 175, 80, 0.9);
    box-shadow: 0 0 35px rgba(76, 175, 80, 0.7), 0 0 60px rgba(76, 175, 80, 0.4);
    border-color: #4CAF50;
}

/* Light message */
.light-message {
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    padding: 0 var(--spacing-md);
}

.light-explanation {
    margin-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 0 var(--spacing-md);
    line-height: 1.5;
}

/* ==========================================================================
   Calendar Section
   ========================================================================== */
.calendar-section {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.calendar-section-header {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: calc(var(--spacing-xl) + var(--spacing-sm));
}

.calendar-section h2 {
    width: 100%;
    text-align: center;
    margin-top: 0;
    margin-bottom: 0;
}

.calendar-toggle-btn,
.notes-toggle-btn,
.reminders-toggle-btn,
.clock-toggle-btn {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.calendar-toggle-btn:hover,
.notes-toggle-btn:hover,
.reminders-toggle-btn:hover,
.clock-toggle-btn:hover {
    background: #06b6d4;
    color: #ffffff;
}

body.dark-mode .calendar-toggle-btn:hover,
body.dark-mode .notes-toggle-btn:hover,
body.dark-mode .reminders-toggle-btn:hover,
body.dark-mode .clock-toggle-btn:hover {
    background: #ffffff;
    color: #1a1a1a;
}

.calendar-section.is-collapsed .calendar-content {
    display: none;
}

.calendar-section.is-collapsed .calendar-section-header {
    margin-bottom: 0;
}

/* ==========================================================================
   Clock Section
   ========================================================================== */
.clock-section-header {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.clock-section .clock-section-header h2 {
    width: 100%;
    text-align: center;
    margin-top: 0;
    margin-bottom: 0;
}

.clock-content {
    width: 100%;
    display: flex;
    justify-content: center;
}

.clock-display {
    width: min(100%, 30rem);
    text-align: center;
    font-family: var(--font-family-mono);
    font-size: clamp(2rem, 7vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-input), var(--bg-section));
    border: 2px solid var(--color-primary, #06b6d4);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    letter-spacing: 4px;
    line-height: 1.15;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.06);
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.clock-display:hover {
    box-shadow: 0 0 14px rgba(6, 182, 212, 0.12);
    transform: scale(1.01);
}

.clock-display.clock-display-compact {
    font-size: clamp(1.75rem, 6vw, 3.4rem);
    letter-spacing: 2px;
}

.clock-analog {
    cursor: pointer;
    user-select: none;
}

/* Transition fluide entre les deux modes */
.clock-display,
.clock-analog {
    animation: clockFadeIn 0.35s ease both;
}

@keyframes clockFadeIn {
    from { opacity: 0; transform: scale(0.96); }
    to   { opacity: 1; transform: scale(1); }
}

.clock-content.is-analog .clock-display {
    display: none;
}

.clock-content:not(.is-analog) .clock-analog {
    display: none;
}

.clock-face {
    width: min(80vw, 280px);
    aspect-ratio: 1 / 1;
    position: relative;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    background: var(--bg-input);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), inset 0 1px 4px rgba(0, 0, 0, 0.04);
}

.clock-analog:hover .clock-face {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12), inset 0 1px 4px rgba(0, 0, 0, 0.04);
}

.clock-ticks,
.clock-numbers {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.clock-tick {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 2px;
    height: 7px;
    background: var(--text-secondary);
    border-radius: 999px;
}

.clock-tick.hour {
    width: 3px;
    height: 12px;
    background: var(--text-primary);
}

.clock-number {
    position: absolute;
    transform: translate(-50%, -50%);
    font-size: clamp(0.9rem, 2.1vw, 1.2rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.clock-hand {
    position: absolute;
    left: 50%;
    bottom: 50%;
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(0deg);
    border-radius: 999px;
}

.hour-hand {
    width: 7px;
    height: 27%;
    background: var(--text-primary);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.minute-hand {
    width: 4px;
    height: 38%;
    background: var(--text-primary);
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.second-hand {
    width: 2px;
    height: 45%;
    background: var(--color-primary, #06b6d4);
    box-shadow: 0 0 6px rgba(6, 182, 212, 0.4);
}

.clock-center-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-primary);
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.15);
}

.clock-section.is-collapsed .clock-content {
    display: none;
}

.clock-section.is-collapsed .clock-section-header {
    margin-bottom: 0;
}

.calendar-content {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
    justify-items: center;
    align-items: stretch;
    margin-bottom: var(--spacing-md);
}

.calendar-container {
    width: 100%;
    min-width: 0;
    justify-self: center;
    display: flex;
    justify-content: center;
}

.calendar {
    width: min(100%, 380px);
    min-width: 0;
    font-size: 1.25rem;
    padding: var(--spacing-md);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.calendar-header button {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.calendar-header button:hover {
    background: #06b6d4;
    color: white;
}

body.dark-mode .calendar-header button:hover {
    background: #ffffff;
    color: #1a1a1a;
}

.calendar-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
}

.weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-days div {
    padding: 10px 8px;
    text-align: center;
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.calendar-days div:hover {
    background: var(--bg-input);
}

.calendar-days .today {
    background: #06b6d4;
    color: white;
}

.calendar-days .today:hover {
    background: #0891b2;
}

body.dark-mode .calendar-days .today {
    background: #ffffff;
    color: #1a1a1a;
}

body.dark-mode .calendar-days .today:hover {
    background: #e0e0e0;
}

.calendar-days .other-month {
    color: var(--text-muted);
}

/* Date display */
.date-display {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0;
    align-self: stretch;
    transform: translateY(-3%);
}

.day-name {
    width: 100%;
    font-size: clamp(1.2rem, 2.4vw, 1.8rem);
    font-weight: 600;
    color: #06b6d4;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

body.dark-mode .day-name {
    color: #ffffff;
}

.big-day-number {
    width: 100%;
    font-size: clamp(4rem, 10vw, 6.25rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

/* ==========================================================================
   Notes Section
   ========================================================================== */
.notes-section.grid-item {
    align-items: stretch;
}

.notes-section-header {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.notes-section .notes-section-header h2 {
    width: 100%;
    text-align: center;
    margin-top: 0;
    margin-bottom: 0;
}

.notes-content {
    width: 100%;
}

.notes-section.is-collapsed .notes-content {
    display: none;
}

.notes-section.is-collapsed .notes-section-header {
    margin-bottom: 0;
}

.notes-area {
    width: 100%;
    min-height: 300px;
    max-height: 500px;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-section);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    outline: none;
    overflow-y: auto;
    resize: vertical;
    font-family: Arial, Helvetica, sans-serif;
}

.notes-area:focus {
    border-color: #06b6d4;
    box-shadow: 0 4px 8px rgba(6, 182, 212, 0.2);
}

body.dark-mode .notes-area:focus {
    border-color: #ffffff;
    box-shadow: 0 4px 8px rgba(255, 255, 255, 0.2);
}

.notes-area * {
    font-family: inherit;
}

.notes-area .placeholder-text {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-style: italic;
    pointer-events: none;
}

/* Formatting toolbar */
.formatting-toolbar {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.format-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.format-btn:hover {
    background: #06b6d4;
    color: white;
}

.format-btn:active {
    transform: translateY(1px);
}

.format-btn.active {
    background: #06b6d4;
    color: white;
}

body.dark-mode .format-btn:hover,
body.dark-mode .format-btn.active {
    background: #ffffff;
    color: #1a1a1a;
}

.toolbar-separator {
    width: 1px;
    height: 30px;
    background: var(--border-color);
    margin: 5px var(--spacing-xs);
}

/* Font size controls */
.font-size-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.font-button {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.font-button:hover {
    background: #06b6d4;
    color: white;
}

body.dark-mode .font-button:hover {
    background: #ffffff;
    color: #1a1a1a;
}

#font-size-display {
    min-width: 40px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Reminders Section
   ========================================================================== */
.reminders-section-header {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.reminders-section .reminders-section-header h2 {
    width: 100%;
    text-align: center;
    margin-top: 0;
    margin-bottom: 0;
}

.reminders-content {
    width: 100%;
}

.reminders-section.is-collapsed .reminders-content {
    display: none;
}

.reminders-section.is-collapsed .reminders-section-header {
    margin-bottom: 0;
}

.reminders-form {
    width: min(100%, 42rem);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0 auto var(--spacing-md);
}

.reminders-input {
    flex: 1;
    min-height: 44px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    padding: 0 var(--spacing-md);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.reminders-input:focus {
    border-color: #06b6d4;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

body.dark-mode .reminders-input:focus {
    border-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.16);
}

.reminders-add-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-md);
    background: #06b6d4;
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.reminders-add-btn:hover {
    background: #0891b2;
}

body.dark-mode .reminders-add-btn {
    background: #ffffff;
    color: #1a1a1a;
}

body.dark-mode .reminders-add-btn:hover {
    background: #e0e0e0;
}

.reminders-list {
    list-style: none;
    margin: 0;
    padding: 0;
    width: min(100%, 42rem);
    margin-left: auto;
    margin-right: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.reminder-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
}

.reminder-label {
    flex: 1;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.reminder-checkbox {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: #06b6d4;
}

.reminder-text {
    color: var(--text-primary);
    line-height: 1.4;
    word-break: break-word;
}

.reminder-actions {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
}

.reminder-alert-btn,
.reminder-delete-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(44, 62, 80, 0.08);
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

body.dark-mode .reminder-alert-btn,
body.dark-mode .reminder-delete-btn {
    background: rgba(255, 255, 255, 0.08);
}

.reminder-alert-btn:hover {
    background: rgba(44, 62, 80, 0.14);
    color: #06b6d4;
}

body.dark-mode .reminder-alert-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
}

.reminder-alert-btn.is-active {
    background: rgba(44, 62, 80, 0.14);
    color: #0891b2;
}

body.dark-mode .reminder-alert-btn.is-active {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
}

.reminder-item.done .reminder-text {
    text-decoration: line-through;
    color: var(--text-secondary);
    opacity: 0.85;
}

.reminder-delete-btn:hover {
    background: rgba(44, 62, 80, 0.14);
    color: #f44336;
}

body.dark-mode .reminder-delete-btn:hover {
    background: rgba(255, 255, 255, 0.14);
}

.reminder-alert-meta {
    width: 100%;
    padding-left: 1.75rem;
    margin-top: -0.15rem;
    color: var(--text-secondary);
    font-size: 0.72rem;
}

.reminders-empty {
    width: 100%;
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-md);
    color: var(--text-muted);
    font-style: italic;
}

.reminder-toast-host {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 1200;
    display: grid;
    gap: 0.75rem;
    pointer-events: none;
}

.reminder-toast {
    min-width: min(22rem, calc(100vw - 2rem));
    max-width: min(26rem, calc(100vw - 2rem));
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    background: var(--bg-section);
    box-shadow: 0 18px 34px rgba(44, 62, 80, 0.16);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: auto;
}

.reminder-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.reminder-toast-icon {
    margin-top: 0.1rem;
    color: #06b6d4;
}

.reminder-toast-copy strong {
    display: block;
    margin-bottom: 0.15rem;
    color: var(--text-primary);
}

.reminder-toast-copy p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.45;
}

.reminder-toast-close {
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.reminder-toast-close:hover {
    background: rgba(6, 182, 212, 0.12);
    color: #06b6d4;
}

.reminder-dialog-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1250;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(15, 23, 42, 0.26);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.reminder-dialog-backdrop[hidden] {
    display: none !important;
}

.reminder-dialog-backdrop.is-visible {
    opacity: 1;
}

.reminder-dialog {
    position: relative;
    width: min(100%, 24rem);
    padding: 1.15rem;
    border-radius: 1.2rem;
    border: 1px solid var(--border-color);
    background: var(--bg-section);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.2);
    transform: translateY(10px) scale(0.98);
    transition: transform var(--transition-fast);
}

.reminder-dialog-backdrop.is-visible .reminder-dialog {
    transform: translateY(0) scale(1);
}

.reminder-dialog-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.reminder-dialog-close:hover {
    background: rgba(6, 182, 212, 0.12);
    color: #06b6d4;
}

.reminder-dialog-header {
    margin-bottom: 0.8rem;
    padding-right: 2.25rem;
}

.reminder-dialog-header h3 {
    margin: 0;
    font-size: 1.25rem;
    text-align: left;
}

.reminder-dialog-text {
    margin: 0.45rem 0 0;
    color: var(--text-secondary);
    line-height: 1.45;
    font-size: 1rem;
}

.reminder-dialog-form {
    display: grid;
    gap: 0.7rem;
}

.reminder-dialog-label {
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.reminder-dialog-select {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--border-color);
    border-radius: 0.95rem;
    background: var(--bg-input);
    color: var(--text-primary);
    padding: 0 2.9rem 0 1rem;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
    -webkit-appearance: none;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
        linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
    background-position:
        calc(100% - 1.2rem) calc(50% - 3px),
        calc(100% - 0.85rem) calc(50% - 3px);
    background-size: 8px 8px, 8px 8px;
    background-repeat: no-repeat;
}

.reminder-dialog-select:focus {
    border-color: #06b6d4;
    box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.12);
}

body.dark-mode .reminder-dialog-select:focus {
    border-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.14);
}

.reminder-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.65rem;
    margin-top: 0.15rem;
}

.reminder-dialog-btn {
    min-width: 96px;
    min-height: 42px;
    border-radius: 999px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.reminder-dialog-btn:hover {
    transform: translateY(-1px);
}

.reminder-dialog-btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.reminder-dialog-btn-secondary:hover {
    background: rgba(6, 182, 212, 0.08);
    color: var(--text-primary);
}

.reminder-dialog-btn-primary {
    background: linear-gradient(135deg, #06b6d4, #0891b2);
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(6, 182, 212, 0.22);
}

/* Save indicator */
.save-indicator {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1000;
}

.save-indicator.visible {
    opacity: 1;
}

/* ==========================================================================
   Main Navigation
   ========================================================================== */
.main-nav {
    width: 100%;
    max-width: 90rem;
    margin: 0 auto var(--spacing-lg);
    position: sticky;
    top: 0.75rem;
    z-index: 1100;
}

.main-nav-bar {
    display: none;
    align-items: center;
    justify-content: flex-end;
    padding: 0.35rem;
    border: none;
    border-radius: 0.85rem;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.045), 0 1px 3px rgba(0, 0, 0, 0.03);
}

body.dark-mode .main-nav-bar {
    background: rgba(30, 30, 30, 0.78);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.main-nav-toggle {
    display: none;
    align-items: center;
    gap: 0.45rem;
    border: none;
    border-radius: 0.5rem;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 480;
    padding: 0.45rem 0.75rem;
    cursor: pointer;
    transition: color 0.25s ease, background-color 0.25s ease;
}

.main-nav-toggle:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.04);
}

body.dark-mode .main-nav-toggle:hover {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.06);
}

.main-nav-panel {
    margin-top: 0;
    padding: 0.55rem 0.9rem;
    border: none;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.045), 0 1px 3px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, transform 0.3s ease;
    overflow: visible;
}

body.dark-mode .main-nav-panel {
    background: rgba(30, 30, 30, 0.78);
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.main-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 0.6rem;
    border: none;
    padding: 0.5rem 0.85rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 480;
    letter-spacing: 0.01em;
    transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s ease;
    white-space: nowrap;
    flex: 0 0 auto;
    position: relative;
}

.main-nav-link:not(.main-nav-link-home)::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scale(0);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-primary);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
    opacity: 0;
}

.main-nav-link-home {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    justify-content: center;
    margin-right: clamp(1.2rem, 2.5vw, 2.2rem);
    border-radius: 0.6rem;
}

.main-nav-link-home i {
    font-size: 1.35rem;
}

.main-nav-link.main-nav-link-home i {
    color: var(--text-secondary);
    font-size: 1.35rem;
}

.main-nav-link.main-nav-link-home:hover i {
    color: var(--text-primary);
}

body.dark-mode .main-nav-link.main-nav-link-home i {
    color: #94a3b8;
}

body.dark-mode .main-nav-link.main-nav-link-home:hover i {
    color: #e2e8f0;
}

.main-nav-link i {
    color: var(--text-muted);
    font-size: 0.82rem;
    transition: color 0.25s ease;
}

.main-nav-link:hover i,
.main-nav-link-active i {
    color: var(--color-primary);
}

body.dark-mode .main-nav-link i {
    color: rgba(255, 255, 255, 0.45);
}

body.dark-mode .main-nav-link:hover i,
body.dark-mode .main-nav-link-active i {
    color: #22d3ee;
}

.main-nav-link-active {
    color: var(--color-primary);
    background: rgba(6, 182, 212, 0.08);
}

.main-nav-link-active::after {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}

body.dark-mode .main-nav-link-active {
    color: #22d3ee;
    background: rgba(34, 211, 238, 0.1);
}

body.dark-mode .main-nav-link-active::after {
    background: #22d3ee;
}

.main-nav-link:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.04);
}

.main-nav-link:not(.main-nav-link-active):hover::after {
    transform: translateX(-50%) scale(1);
    opacity: 0.4;
}

body.dark-mode .main-nav-link:hover {
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.06);
}

/* ==========================================================================
   Language Selector (Main Nav)
   ========================================================================== */
.main-nav-lang-selector {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-left: clamp(1.2rem, 2.5vw, 2.2rem);
    min-height: 32px;
    padding: 0 0.4rem;
    border: none;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    flex: 0 0 auto;
    transition: background-color 0.25s ease;
}

.main-nav-lang-selector > i {
    font-size: 0.9rem;
    opacity: 0.9;
}

.main-nav-lang-separator {
    opacity: 0.45;
    font-weight: 300;
}

.main-nav-lang-selector .btn-lang {
    appearance: none;
    border: none;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    color: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1;
    min-width: 0;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0.78;
    padding: 0.2rem 0.35rem;
    transition: opacity var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.main-nav-lang-selector .btn-lang:hover {
    opacity: 1;
    color: var(--color-primary);
    transform: translateY(-1px);
}

.main-nav-lang-selector .btn-lang.active {
    opacity: 1;
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

body.dark-mode .main-nav-lang-selector {
    color: #94a3b8;
    background: rgba(255, 255, 255, 0.06);
}

body.dark-mode .main-nav-lang-selector .btn-lang:hover,
body.dark-mode .main-nav-lang-selector .btn-lang.active {
    color: #22d3ee;
}

/* ==========================================================================
   Theme Toggle Button
   ========================================================================== */
.theme-toggle {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border: none;
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-muted);
    border-radius: 0.5rem;
    padding: 0;
    font-size: 0.88rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    margin-left: 0;
    transition: color 0.25s ease, background-color 0.25s ease, transform 0.3s ease;
}

/* Espace dédié entre le sélecteur de langue et le bouton mode sombre */
.main-nav-lang-selector + .theme-toggle {
    margin-left: 0.75rem;
}

.theme-toggle:hover {
    background: rgba(0, 0, 0, 0.08);
    color: var(--text-primary);
    transform: rotate(15deg);
}

.theme-toggle:active {
    transform: rotate(30deg) scale(0.92);
}

body.dark-mode .theme-toggle {
    background: rgba(255, 255, 255, 0.06);
    color: #94a3b8;
}

body.dark-mode .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
}

/* ==========================================================================
   Widget / Useful Links
   ========================================================================== */
.widget {
    width: 100%;
    max-width: 75rem;
    margin: var(--spacing-xl) auto;
    padding: 0 var(--spacing-md);
}

.useful-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.link-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: transparent;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.link-button:hover {
    transform: translateY(-2px);
}

.link-button:hover .letter-icon {
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
}

body.dark-mode .link-button:hover .letter-icon {
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.4);
}

.link-button span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.letter-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    min-height: 56px;
    border-radius: 50%;
    background: #06b6d4;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.45rem;
    flex-shrink: 0;
}

body.dark-mode .letter-icon {
    background: #ffffff;
    color: #1a1a1a;
}

/* ==========================================================================
   Floating Buttons
   ========================================================================== */
.activities-button,
.floating-button-right {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
}

.activities-link,
.float-right {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #06b6d4;
    color: white;
    width: 70px;
    height: 70px;
    border-radius: var(--radius-full);
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
    transition: all var(--transition-normal);
}

.activities-link {
    animation: pulse-gentle 2.5s ease-in-out infinite;
}

@keyframes pulse-gentle {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 6px 20px rgba(6, 182, 212, 0.6);
    }
}

.activities-link:hover,
.float-right:hover {
    background-color: #0891b2;
    transform: translateY(-2px) scale(1.1);
    box-shadow: 0 8px 20px rgba(6, 182, 212, 0.5);
    animation: none;
}

body.dark-mode .activities-link,
body.dark-mode .float-right {
    background-color: #ffffff;
    color: #1a1a1a;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

body.dark-mode .activities-link {
    animation: pulse-gentle-dark 2.5s ease-in-out infinite;
}

@keyframes pulse-gentle-dark {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 6px 20px rgba(255, 255, 255, 0.5);
    }
}

body.dark-mode .activities-link:hover,
body.dark-mode .float-right:hover {
    background-color: #e0e0e0;
    animation: none;
}

.activities-link i,
.float-right i {
    font-size: 1.8rem;
}

.activities-link span {
    display: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    width: 100%;
    margin-top: auto;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

body > footer {
    padding-top: var(--spacing-2xl);
}

body > footer::before {
    content: '';
    display: block;
    width: min(100%, 52rem);
    margin: 0 auto var(--spacing-2xl);
    border-top: 1px solid var(--border-color);
}

footer .date {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

footer .date p {
    margin: var(--spacing-md) 0 var(--spacing-xl);
}

.footer-support {
    margin: var(--spacing-xl) 0;
    font-size: inherit;
    line-height: 1.55;
    color: inherit;
    opacity: 0.9;
}

footer .date p.footer-support {
    margin: var(--spacing-xl) 0;
}

.footer-support-link {
    color: #06b6d4;
    text-decoration: none;
    font-weight: inherit;
}

.footer-support-link:hover,
.footer-support-link:focus-visible {
    text-decoration: underline;
}

.footer-support-link i {
    margin-left: 0.2rem;
    font-size: 0.95em;
}

.footer-author-link {
    color: inherit;
    text-decoration: none;
    font-weight: inherit;
}

.footer-author-link:hover,
.footer-author-link:focus-visible {
    color: #06b6d4;
    text-decoration: underline;
}

body.dark-mode .footer-author-link:hover,
body.dark-mode .footer-author-link:focus-visible {
    color: #22d3ee;
}

.footer-brand-name {
    font-family: 'Pacifico', cursive;
}

body.dark-mode .footer-support-link {
    color: #22d3ee;
}

footer .date img {
    height: 22px;
    margin-left: 3px;
    vertical-align: text-bottom;
}

footer .annee {
    display: block;
    margin-top: var(--spacing-lg);
}

footer .heart {
    color: var(--accent-color);
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.footer-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: var(--spacing-md) 0;
    font-size: 0.85rem;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: #06b6d4;
    text-decoration: underline;
}

.footer-nav-sep {
    color: var(--text-secondary);
    opacity: 0.4;
}

/* ==========================================================================
   Sound Meter
   ========================================================================== */
#sound-meter {
    width: 100%;
    height: 4px;
    margin-top: 4px;
    margin-bottom: 8px;
    background-color: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.volume-bar {
    height: 100%;
    width: 0%;
    background-color: var(--color-primary);
    position: absolute;
    left: 0;
    top: 0;
    transition: width 0.1s ease-out, background-color 0.5s ease;
}

/* ==========================================================================
   Activities Page Styles
   ========================================================================== */
.current-date {
    text-align: center;
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    margin-bottom: var(--spacing-2xl);
    font-weight: 500;
    color: var(--text-secondary);
}

.current-date i {
    margin-right: var(--spacing-sm);
    color: #06b6d4;
}

body.dark-mode .current-date i {
    color: #ffffff;
}

/* Main controls */
.main-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.main-control-btn {
    width: 3.5rem;
    height: 3.5rem;
    border: none;
    border-radius: var(--radius-full);
    background: #06b6d4;
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-control-btn i {
    font-size: 1.3rem;
}

.main-control-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    background: #0891b2;
}

body.dark-mode .main-control-btn {
    background: #ffffff;
    color: #1a1a1a;
}

body.dark-mode .main-control-btn:hover:not(:disabled) {
    background: #e0e0e0;
}

.main-control-btn:disabled {
    background: #cccccc;
    cursor: not-allowed;
}

body.dark-mode .main-control-btn:disabled {
    background: #555555;
}

/* Activities container */
.activities-container {
    width: 100%;
    max-width: 50rem;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.activity-item {
    background: var(--bg-section);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 5px var(--shadow-color);
    padding: 1.1rem 1.35rem;
}

.activity-input {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.85rem;
}

.activity-number {
    font-size: 1.35rem;
    font-weight: 700;
    color: #06b6d4;
    min-width: 2rem;
}

body.dark-mode .activity-number {
    color: #ffffff;
}

.input-container {
    flex: 1;
    min-width: 200px;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.activity-text {
    width: 100%;
    padding: 0.95rem 1.2rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--text-primary);
    background: transparent;
    outline: none;
    transition: border-color var(--transition-fast);
    position: relative;
    z-index: 2;
}

.activity-text:focus {
    border-color: #06b6d4;
}

body.dark-mode .activity-text:focus {
    border-color: #ffffff;
}

.activity-text::placeholder {
    color: var(--text-muted);
}

/* Progress bar - fills the input field */
.progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 0%;
    background: rgba(76, 175, 80, 0.4);
    border-radius: var(--radius-md);
    transition: width 0.3s ease, background-color 0.3s ease;
    z-index: 1;
}

body.dark-mode .progress-bar {
    background: rgba(76, 175, 80, 0.5);
}

/* Activity controls */
.activity-controls {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
}

.activity-timer {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.activity-timer .time-btn {
    width: 26px;
    height: 26px;
}

.activity-timer .time-value {
    min-width: 24px;
    font-size: 0.95rem;
}

.time-separator {
    font-weight: bold;
    color: var(--text-primary);
}

/* Activity light/circle */
.activity-light {
    display: flex;
    align-items: center;
    justify-content: center;
}

.activity-circle {
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.activity-circle[data-state="active"] {
    background: #4CAF50;
    border-color: #4CAF50;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
}

body.dark-mode .activity-circle[data-state="active"] {
    background: #4CAF50;
    border-color: #4CAF50;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
}

.activity-circle[data-state="paused"] {
    background: var(--color-accent-orange);
    border-color: var(--color-accent-orange);
}

.activity-circle[data-state="completed"] {
    background: var(--color-accent-red);
    border-color: var(--color-accent-red);
}

/* ==========================================================================
   Color Picker
   ========================================================================== */
.color-picker-popup {
    position: absolute;
    background: var(--bg-section);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    box-shadow: 0 4px 12px var(--shadow-color);
    z-index: 1000;
    display: none;
}

.color-picker-popup.visible {
    display: block;
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform var(--transition-fast);
}

.color-swatch:hover {
    transform: scale(1.15);
    border-color: var(--text-primary);
}

/* ==========================================================================
   Entrance Animation
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.grid-item:nth-child(1) { animation-delay: 0s; }
.grid-item:nth-child(2) { animation-delay: 0.08s; }
.grid-item:nth-child(3) { animation-delay: 0.16s; }
.grid-item:nth-child(4) { animation-delay: 0.24s; }
.grid-item:nth-child(5) { animation-delay: 0.32s; }

/* Page main container entrance animation */
.notes-page,
#content,
.k-app,
.mc-app,
.buttons-main,
.lf-app,
.activities-container {
    animation: fadeInUp 0.5s ease both;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Large tablets and small desktops */
@media screen and (max-width: 64rem) {
    body {
        padding: var(--spacing-lg);
    }

    .grid-container {
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .timer-wrapper {
        width: min(15rem, 70vw);
        height: min(15rem, 70vw);
    }
}

/* Tablets */
@media screen and (max-width: 80rem) {
    .main-nav {
        top: 0.5rem;
        margin-bottom: var(--spacing-md);
    }

    .main-nav-toggle span {
        display: none;
    }

    .main-nav-bar {
        display: flex;
        width: 100%;
        justify-content: flex-end;
        padding: 0.45rem 0.75rem;
    }

    .main-nav-toggle {
        display: inline-flex;
    }

    .main-nav-panel {
        flex-wrap: wrap;
        margin-top: 0;
        max-height: 0;
        opacity: 0;
        transform: translateY(-6px);
        overflow: hidden;
        pointer-events: none;
        padding: 0 var(--spacing-sm);
    }

    .main-nav.is-open .main-nav-panel {
        margin-top: var(--spacing-sm);
        max-height: 48rem;
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
        padding: 0.75rem;
    }

    .main-nav-panel > * {
        opacity: 0;
        transform: translateY(-6px);
        transition: opacity var(--transition-normal), transform var(--transition-normal);
    }

    .main-nav.is-open .main-nav-panel > * {
        opacity: 1;
        transform: translateY(0);
    }

    .main-nav-link:not(.main-nav-link-home),
    .main-nav-theme,
    .main-nav-lang-selector {
        width: auto;
        justify-content: center;
    }

    .main-nav-panel {
        flex-direction: column;
        align-items: center;
    }

    .main-nav-link-home {
        margin-right: 0;
    }

    .main-nav-lang-selector {
        margin-left: 0;
        justify-content: center;
    }

    .main-nav-theme {
        margin-left: 0;
    }

    .theme-toggle {
        margin-left: 0;
    }

    .main-nav-lang-selector + .theme-toggle {
        margin-left: 0;
        margin-top: 0.55rem;
    }
}

@media screen and (max-width: 48rem) {
    body {
        padding: var(--spacing-md);
    }

    .main-nav-link-home {
        width: 2.4rem;
        height: 2.4rem;
        padding: 0;
        margin-right: 0;
    }

    .main-nav-link-home i {
        font-size: 1.25rem;
    }

    .grid-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .calendar-section.grid-item,
    .clock-section.grid-item,
    .timer-section.grid-item,
    .traffic-section.grid-item,
    .notes-section.grid-item,
    .reminders-section.grid-item {
        grid-column: 1;
    }

    .calendar-section.grid-item {
        grid-row: 1;
    }

    .clock-section.grid-item {
        grid-row: 2;
    }

    .timer-section.grid-item {
        grid-row: 3;
    }

    .traffic-section.grid-item {
        grid-row: 4;
    }

    .notes-section.grid-item {
        grid-row: 5;
    }

    .reminders-section.grid-item {
        grid-row: 6;
    }

    .calendar-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .calendar {
        width: min(100%, 22rem);
        font-size: 1.1rem;
        padding: 0.75rem;
    }

    .calendar-header h3 {
        font-size: 1.15rem;
    }

    .calendar-header button {
        width: 32px;
        height: 32px;
    }

    .weekdays {
        font-size: 0.82rem;
    }

    .calendar-days {
        gap: 2px;
    }

    .calendar-days div {
        padding: 8px 4px;
        font-size: 0.95rem;
    }

    .calendar-container {
        justify-self: center;
        padding-right: 0;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: var(--spacing-md);
    }

    .date-display {
        justify-self: center;
        align-items: center;
        padding-left: 0;
        padding-top: var(--spacing-md);
        transform: none;
    }

    .big-day-number {
        font-size: clamp(4rem, 18vw, 6rem);
    }

    .theme-switch-container {
        top: 10px;
        right: 10px;
    }

    .activities-button,
    .floating-button-right {
        bottom: 15px;
        right: 15px;
    }

    .activities-link,
    .float-right {
        width: 55px;
        height: 55px;
    }

    footer .date p {
        line-height: 1.7;
    }

    .footer-support {
        line-height: 1.75;
    }
}

/* Mobile phones */
@media screen and (max-width: 30rem) {
    body {
        padding: var(--spacing-sm);
    }

    h1 {
        font-size: 1.5rem;
        letter-spacing: 1px;
    }

    h2 {
        font-size: 1.3rem;
    }

    .grid-container {
        gap: var(--spacing-sm);
        padding: var(--spacing-xs);
    }

    .grid-item {
        padding: var(--spacing-md);
    }

    .calendar {
        width: min(100%, 18rem);
        padding: var(--spacing-sm);
        font-size: 1rem;
    }

    .calendar-header h3 {
        font-size: 1rem;
    }

    .weekdays {
        font-size: 0.76rem;
    }

    .calendar-days div {
        padding: 6px 2px;
        font-size: 0.88rem;
    }

    .timer-wrapper {
        width: min(14rem, 85vw);
        height: min(14rem, 85vw);
        margin-bottom: var(--spacing-md);
    }

    .timer-display {
        font-size: 2rem;
    }

    .time-inputs {
        gap: var(--spacing-md);
    }

    .timer-controls {
        gap: var(--spacing-md);
    }

    .timer-controls button {
        width: 3rem;
        height: 3rem;
    }

    .timer-controls button i {
        font-size: 1.1rem;
    }

    .traffic-light {
        height: 280px;
        width: 90px;
        padding: 12px;
    }

    .light {
        width: 65px;
        height: 65px;
    }

    .light-message {
        font-size: 1rem;
    }

    .notes-area {
        min-height: 200px;
        padding: var(--spacing-md);
    }

    .formatting-toolbar {
        gap: var(--spacing-xs);
    }

    .reminders-input {
        min-height: 40px;
        font-size: 0.95rem;
    }

    .reminders-add-btn {
        width: 40px;
        height: 40px;
    }

    .format-btn {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .toolbar-separator {
        margin: 5px 2px;
    }

    .useful-links {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-lg);
    }

    .link-button {
        width: auto;
    }

    /* Activities page mobile */
    .activity-item {
        padding: 0.75rem 1rem;
    }

    .activity-input {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 0.4rem 0.5rem;
    }

    .activity-number {
        font-size: 1.1rem;
        min-width: auto;
        grid-row: 1;
        grid-column: 1;
    }

    .input-container {
        grid-row: 1;
        grid-column: 2 / -1;
        min-width: 0;
    }

    .activity-text {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }

    .activity-controls {
        grid-row: 2;
        grid-column: 2 / -1;
        justify-content: flex-start;
    }

    .main-controls {
        gap: var(--spacing-md);
    }

    .main-control-btn {
        width: 3rem;
        height: 3rem;
    }

    .main-control-btn i {
        font-size: 1.1rem;
    }
}

/* Extra small screens */
@media screen and (max-width: 20rem) {
    .timer-wrapper {
        width: 12rem;
        height: 12rem;
    }

    .timer-display {
        font-size: 1.6rem;
    }

    .traffic-light {
        height: 240px;
        width: 80px;
    }

    .light {
        width: 55px;
        height: 55px;
    }
}

/* Landscape orientation on mobile */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .calendar-section.grid-item {
        grid-column: 1 / -1;
    }

    .clock-section.grid-item {
        grid-row: 2;
        grid-column: 1 / -1;
    }

    .timer-section.grid-item {
        grid-row: 3;
        grid-column: 1;
    }

    .traffic-section.grid-item {
        grid-row: 3;
        grid-column: 2;
    }

    .notes-section.grid-item {
        grid-row: 4;
        grid-column: 1 / -1;
    }

    .reminders-section.grid-item {
        grid-row: 5;
        grid-column: 1 / -1;
    }

    .timer-wrapper {
        width: 10rem;
        height: 10rem;
        margin-bottom: var(--spacing-sm);
    }

    .traffic-light {
        height: 200px;
        width: 70px;
    }

    .light {
        width: 45px;
        height: 45px;
    }
}

/* Print styles */
@media print {
    .main-nav,
    .theme-switch-container,
    .activities-button,
    .floating-button-right,
    .save-indicator {
        display: none;
    }

    body {
        background: white;
        padding: 0;
    }

    .grid-item {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow-color: rgba(0, 0, 0, 0.3);
    }

    .light-inner {
        border-width: 4px;
    }

    .activity-text,
    .notes-area {
        border-width: 3px;
    }
}

/* ==========================================================================
   Pub Audience — Promotional banner
   ========================================================================== */
.pub-audience-wrapper {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 3rem var(--spacing-md, 1rem);
}

@media screen and (max-width: 64rem) {
    .pub-audience-wrapper {
        padding-inline: var(--spacing-sm);
    }
}

.pub-audience {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 2.5rem;
    padding: 2.5rem 3rem;
    text-decoration: none;
    color: inherit;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0e7490 0%, #06b6d4 50%, #22d3ee 100%);
    box-shadow: 0 8px 32px rgba(6, 182, 212, 0.25);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.pub-audience:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(6, 182, 212, 0.35);
}

.pub-audience::before,
.pub-audience::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

.pub-audience::before {
    width: 200px;
    height: 200px;
    top: -60px;
    right: -40px;
    animation: pub-audience-float 6s ease-in-out infinite;
}

.pub-audience::after {
    width: 120px;
    height: 120px;
    bottom: -30px;
    left: 30%;
    animation: pub-audience-float 8s ease-in-out infinite reverse;
}

@keyframes pub-audience-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.pub-audience__branding {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.pub-audience__icon {
    width: 160px;
    height: 160px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    padding: 12px;
    backdrop-filter: blur(4px);
    transition: transform 0.3s ease;
}

.pub-audience:hover .pub-audience__icon {
    transform: scale(1.06) rotate(-2deg);
}

.pub-audience__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.pub-audience__title {
    font-family: 'Pacifico', cursive;
    font-size: 1.5rem;
    color: #ffffff;
    white-space: nowrap;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.pub-audience__text {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    position: relative;
    z-index: 1;
}

.pub-audience__headline {
    font-size: 1.35rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.3;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.pub-audience__description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.88);
    line-height: 1.6;
}

.pub-audience__cta-btn {
    margin-top: 0.5rem;
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 0.5rem;
    padding: 0.55rem 1.3rem;
    background: #ffffff;
    color: #0891b2;
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease, gap 0.2s ease;
}

.pub-audience:hover .pub-audience__cta-btn {
    transform: scale(1.04);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    gap: 0.7rem;
}

.pub-audience__cta-btn i {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.pub-audience:hover .pub-audience__cta-btn i {
    transform: translateX(3px);
}

@media (max-width: 600px) {
    .pub-audience {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1.5rem 2.5rem;
        gap: 1.5rem;
    }

    .pub-audience__icon {
        width: 130px;
        height: 130px;
    }

    .pub-audience__headline {
        font-size: 1.15rem;
    }

    .pub-audience__cta-btn {
        align-self: center;
    }
}

@media screen and (max-width: 30rem) {
    .pub-audience-wrapper {
        padding-inline: var(--spacing-xs);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}