/* styles.css - Refonte */
:root {
    --color-background-dark: #121212;
    --color-background-medium: #1E1E1E;
    --color-background-light: #2A2A2A; /* Pour hover et éléments actifs légers */
    --color-border: #383838;
    --color-text-primary: #EAEAEA;
    --color-text-secondary: #B0B0B0;
    --color-text-placeholder: #707070;
    --color-accent-primary: #00BCD4; /* Cyan */
    --color-accent-primary-darker: #0097A7;
    --color-accent-primary-hover: #00E5FF;
    --color-accent-secondary: #FFC107; /* Ambre/Jaune */
    --color-accent-secondary-darker: #FFA000;
    --color-danger: #F44336;
    --color-danger-darker: #D32F2F;
    --color-success: #4CAF50; /* Vert pour "en cours" */
    --color-warning: #FF9800; /* Orange pour "imminent" */

    --font-primary: 'Inter', sans-serif;
    --font-display: 'Orbitron', sans-serif;

    --border-radius-small: 4px;
    --border-radius-medium: 8px;
    --padding-base: 1rem; /* 16px */
    --padding-small: calc(var(--padding-base) * 0.5); /* 8px */
    --padding-medium: var(--padding-base); /* 16px */
    --padding-large: calc(var(--padding-base) * 1.5); /* 24px */

    --shadow-small: 0 2px 4px rgba(0,0,0,0.2);
    --shadow-medium: 0 4px 8px rgba(0,0,0,0.3);

    /* Pour affichage 16:9, tailles de police dynamiques */
    --dynamic-font-unit: 1vmin; 
}

/* Reset et Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%; 
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-size: 16px; 
    overflow-x: hidden; 
}

/* Conteneurs principaux ADMIN */
.admin-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh; 
    padding: var(--padding-medium);
}
@media (min-width: 768px) {
    .admin-wrapper {
        padding: var(--padding-large);
    }
}


/* En-têtes ADMIN */
.main-header {
    display: flex;
    justify-content: center; 
    align-items: center;
    padding-bottom: var(--padding-medium);
    margin-bottom: var(--padding-large);
    border-bottom: 1px solid var(--color-border);
}
.logo-container {
    display: flex;
    align-items: center;
    gap: var(--padding-small);
}
.main-header h1 {
    font-family: var(--font-display);
    font-size: 1.8em;
    color: var(--color-text-primary);
    font-weight: 500;
}
.header-icon {
    font-size: 1.5em;
    color: var(--color-accent-primary);
}


/* Grille d'administration */
.admin-main-content {
    flex-grow: 1;
}
.admin-grid {
    display: grid;
    grid-template-columns: 1fr; 
    gap: var(--padding-large);
}

@media (min-width: 1024px) { 
    .admin-grid {
        grid-template-columns: 1fr 1.5fr; 
    }
    .large-card { 
        grid-row: span 2;
    }
}


/* Cartes ADMIN */
.card {
    background-color: var(--color-background-medium);
    padding: var(--padding-medium);
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-medium);
    display: flex;
    flex-direction: column;
    gap: var(--padding-medium);
}
.card-title {
    font-family: var(--font-display);
    font-size: 1.3em;
    font-weight: 500;
    color: var(--color-text-primary);
    padding-bottom: var(--padding-small);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--padding-small);
}
.card-subtitle {
    font-family: var(--font-primary);
    font-size: 1.1em;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--padding-small);
     display: flex;
    align-items: center;
    gap: var(--padding-small);
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--padding-small);
}


/* Formulaires ADMIN */
.form-group {
    margin-bottom: var(--padding-medium);
    display: flex;
    flex-direction: column;
}
.form-group label {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin-bottom: var(--padding-small);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}
.form-group .icon {
    color: var(--color-accent-primary);
    margin-right: 2px;
}

input[type="text"],
input[type="time"],
input[type="number"],
select {
    width: 100%;
    padding: var(--padding-small) var(--padding-medium);
    background-color: var(--color-background-light);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-small);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: 1em;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
input[type="text"]::placeholder,
input[type="number"]::placeholder {
    color: var(--color-text-placeholder);
}
input:focus, select:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 188, 212, 0.3);
}
input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(70%) sepia(30%) saturate(500%) hue-rotate(130deg);
    cursor: pointer;
}

.form-row {
    display: flex;
    gap: var(--padding-medium);
}
.form-row .form-group {
    flex: 1;
}

/* Boutons ADMIN & communs */
.button-group {
    display: flex;
    gap: var(--padding-small);
    flex-wrap: wrap;
}
.btn {
    font-family: var(--font-primary);
    padding: var(--padding-small) var(--padding-medium);
    border: none;
    border-radius: var(--border-radius-small);
    font-size: 0.95em;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}
.btn:hover {
    transform: translateY(-1px);
}
.btn:active {
    transform: translateY(0px);
}

.btn-primary {
    background-color: var(--color-accent-primary);
    color: var(--color-background-dark);
}
.btn-primary:hover {
    background-color: var(--color-accent-primary-hover);
}
.btn-primary:active {
    background-color: var(--color-accent-primary-darker);
}

.btn-secondary {
    background-color: var(--color-background-light);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover {
    background-color: var(--color-border);
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-text-primary);
}
.btn-danger:hover {
    background-color: var(--color-danger-darker);
}

.btn-launch {
    background-color: var(--color-success);
    color: var(--color-text-primary);
    font-size: 1.1em !important;
    padding: var(--padding-medium) var(--padding-large) !important;
}
.btn-launch:hover {
    background-color: #388E3C; /* Darker green */
}

.btn-small {
    padding: 6px 10px;
    font-size: 0.85em;
}

.note {
    font-size: 0.85em;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--padding-small);
}

/* Liste des sessions (Admin) */
.session-list {
    list-style-type: none;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-small);
}
.session-list li {
    padding: var(--padding-medium);
    background-color: var(--color-background-light);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s ease;
}
.session-list li:last-child {
    border-bottom: none;
}
.session-list li:hover {
    background-color: var(--color-border);
}
.session-list .session-info {
    flex-grow: 1;
    font-size: 0.9em;
}
.session-list .session-info .session-day-badge {
    display: inline-block;
    background-color: var(--color-accent-secondary);
    color: var(--color-background-dark);
    padding: 2px 6px;
    border-radius: var(--border-radius-small);
    font-size: 0.8em;
    font-weight: 700;
    margin-right: 8px;
}
.session-list .session-info strong { /* Heure */
    font-weight: 500;
    color: var(--color-accent-primary);
}
.session-list .session-actions button {
    margin-left: var(--padding-small);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 1.1em;
}
.session-list .session-actions button:hover {
    color: var(--color-accent-primary);
}
.session-list .session-actions .delete-btn:hover {
    color: var(--color-danger);
}
.session-list .empty-state {
    color: var(--color-text-secondary);
    text-align: center;
    font-style: italic;
    justify-content: center;
}


/* === PAGE D'AFFICHAGE (display.html) === */
.display-page-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 100vh;
    background-color: #000; 
    overflow: hidden; 
}

.display-content-16-9 {
    display: flex;
    flex-direction: column;
    background-color: var(--color-background-dark); 
    overflow: hidden; 

    width: 100vw; 
    height: calc(100vw * 9 / 16); 

    max-height: 100vh;
    max-width: calc(100vh * 16 / 9); 

    margin: auto; 
    padding: calc(var(--dynamic-font-unit) * 2); 
    box-shadow: 0 0 30px rgba(0,188,212,0.3); 
}

/* Header de la page d'affichage */
.display-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: calc(var(--dynamic-font-unit) * 1);
    margin-bottom: calc(var(--dynamic-font-unit) * 1.5);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0; 
}
.schedule-name-display {
    font-family: var(--font-primary);
    font-size: calc(var(--dynamic-font-unit) * 1.8);
    color: var(--color-text-secondary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.time-display {
    font-family: var(--font-display);
    font-size: calc(var(--dynamic-font-unit) * 2.2);
    color: var(--color-accent-primary);
    font-weight: 500;
}

/* Contenu principal de l'affichage */
.display-main-content {
    flex-grow: 1; 
    display: flex;
    flex-direction: column;
    justify-content: center; 
    gap: calc(var(--dynamic-font-unit) * 2);
    overflow: hidden; 
    padding: calc(var(--dynamic-font-unit) * 1) 0;
}

/* Section Compte à Rebours */
.countdown-section {
    background-color: var(--color-background-medium);
    padding: calc(var(--dynamic-font-unit) * 1.5) calc(var(--dynamic-font-unit) * 1.5);
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-small);
    text-align: center;
}
.countdown-status-text {
    font-family: var(--font-display);
    font-size: calc(var(--dynamic-font-unit) * 3 * 1.2); /* +20% */
    color: var(--color-accent-secondary);
    margin-bottom: calc(var(--dynamic-font-unit) * 0.5);
    font-weight: 500;
    text-transform: uppercase;
}
.countdown-category-text, .countdown-session-text {
    font-family: var(--font-display);
    font-size: calc(var(--dynamic-font-unit) * 4 * 1.2); /* +20% */
    color: var(--color-text-primary);
    margin-bottom: calc(var(--dynamic-font-unit) * 0.5);
    font-weight: 700;
    text-transform: uppercase;
    line-height: 1.1; 
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.countdown-session-text {
    font-size: calc(var(--dynamic-font-unit) * 3.2 * 1.2); /* +20% */
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--dynamic-font-unit) * 1);
    font-weight: 500;
}
.countdown-timer-digits {
    font-family: var(--font-display);
    font-size: calc(var(--dynamic-font-unit) * 12 * 1.2); /* +20% */
    font-weight: 900;
    color: var(--color-accent-primary);
    padding: calc(var(--dynamic-font-unit) * 0.2) calc(var(--dynamic-font-unit) * 1);
    background-color: var(--color-background-dark);
    border-radius: var(--border-radius-small);
    display: inline-block;
    min-width: calc(var(--dynamic-font-unit) * 28 * 1.2); /* +20% approx */
    letter-spacing: 2px;
    border: 2px solid var(--color-border);
    line-height: 1; 
}

.countdown-timer-digits.active {
    color: var(--color-success);
    border-color: var(--color-success);
    animation: pulse-green-border 1.5s infinite;
}
.countdown-timer-digits.imminent {
    color: var(--color-warning);
    border-color: var(--color-warning);
    animation: pulse-orange-border 1.5s infinite;
}

@keyframes pulse-green-border {
    0% { box-shadow: 0 0 8px var(--color-success), 0 0 12px var(--color-success); }
    50% { box-shadow: 0 0 18px var(--color-success), 0 0 28px var(--color-success); }
    100% { box-shadow: 0 0 8px var(--color-success), 0 0 12px var(--color-success); }
}
@keyframes pulse-orange-border {
    0% { box-shadow: 0 0 8px var(--color-warning), 0 0 12px var(--color-warning); }
    50% { box-shadow: 0 0 18px var(--color-warning), 0 0 28px var(--color-warning); }
    100% { box-shadow: 0 0 8px var(--color-warning), 0 0 12px var(--color-warning); }
}

/* Section Prochaines Séances (Affichage) */
.upcoming-section {
    padding-top: calc(var(--dynamic-font-unit) * 1);
    text-align: center;
    overflow: hidden; 
    flex-shrink: 1; 
}
.upcoming-title {
    font-family: var(--font-display);
    font-size: calc(var(--dynamic-font-unit) * 2.5 * 1.2); /* +20% */
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--dynamic-font-unit) * 1);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--padding-small);
}
.upcoming-list {
    list-style-type: none;
    max-height: calc(var(--dynamic-font-unit) * 18); 
    overflow-y: auto;
}
.upcoming-list li {
    background-color: rgba(30, 30, 30, 0.7);
    color: var(--color-text-secondary);
    padding: calc(var(--dynamic-font-unit) * 0.6) calc(var(--dynamic-font-unit) * 1); 
    margin: 0 auto calc(var(--dynamic-font-unit) * 0.5);
    max-width: 90%;
    border-radius: var(--border-radius-small);
    font-size: calc(var(--dynamic-font-unit) * 1.8); 
    text-align: left;
    /* La bordure gauche sera définie par JS pour la couleur par catégorie */
    border-left-width: 5px; /* Épaisseur de la bordure de couleur */
    border-left-style: solid; /* Style de la bordure */
    transition: background-color 0.2s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.upcoming-list li .session-day-badge {
    display: inline-block;
    background-color: var(--color-accent-secondary);
    color: var(--color-background-dark);
    padding: calc(var(--dynamic-font-unit) * 0.2) calc(var(--dynamic-font-unit) * 0.6);
    border-radius: var(--border-radius-small);
    font-size: calc(var(--dynamic-font-unit) * 1.3); 
    font-weight: 700;
    margin-right: calc(var(--dynamic-font-unit) * 0.6); 
    vertical-align: middle;
}
.upcoming-list li:hover {
    background-color: var(--color-background-light);
}
.upcoming-list li strong { /* Heure */
    color: var(--color-text-primary);
    font-weight: 500;
}
.upcoming-list .empty-state {
    color: var(--color-text-secondary);
    text-align: center;
    font-style: italic;
    border-left: none;
    background-color: transparent;
    font-size: calc(var(--dynamic-font-unit) * 1.8);
    white-space: normal; 
}

/* Footer de la page d'affichage (pour bouton plein écran) */
.display-page-footer {
    padding-top: calc(var(--dynamic-font-unit) * 1);
    text-align: right; 
    flex-shrink: 0;
}
#fullscreenBtn {
    font-size: calc(var(--dynamic-font-unit) * 1.5);
    padding: calc(var(--dynamic-font-unit) * 0.5) calc(var(--dynamic-font-unit) * 1);
}


/* Responsive pour l'ADMIN */
@media (max-width: 768px) {
    .main-header h1 { font-size: 1.5em; }
}
@media (max-width: 480px) {
    .admin-grid { gap: var(--padding-medium); }
    .card { padding: var(--padding-small); }
    .form-row { flex-direction: column; }
}

/* Scrollbars personnalisées */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-background-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-primary);
}