:root {
    --bg-color: #f8f6f0; /* Blanc cassé */
    --text-color: #2c2c2e;
    --accent-color: #4f46e5;
    --card-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.06);
    --note-radius: 16px;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    padding-top: 90px;
    min-height: 100vh;
}

/* Header */
.app-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(248, 246, 240, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
}

.header-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.app-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Vues (Navigation) */
.view-hidden { display: none !important; }
.view-active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Grille des dossiers (Accueil) */
.tabs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 20px;
    padding: 20px;
}

.tab-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--note-radius);
    padding: 30px 15px;
    text-align: center;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}
.tab-card:active { transform: scale(0.95); }
.tab-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
}
.tab-card span {
    font-size: 1.1rem;
    font-weight: 600;
}

/* Grille des Notes */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px;
}

.note-card {
    border-radius: var(--note-radius);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    color: white; /* Le texte sera blanc car les fonds de notes sont foncés/colorés */
}

.note-content {
    font-size: 1.05rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    color: rgba(255,255,255,0.95);
}

.note-photo {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
    max-height: 250px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.note-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid rgba(255,255,255,0.2);
}

/* Boutons */
.btn-icon {
    background: rgba(255,255,255,0.9);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow);
}
.note-actions .btn-icon {
    background: rgba(0,0,0,0.2);
    color: white;
    border: none;
    width: 36px; height: 36px;
    box-shadow: none;
}
.note-actions .btn-icon:active { background: rgba(0,0,0,0.4); }

.btn-icon-ghost {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

.fab-container {
    position: fixed;
    bottom: 35px; right: 30px;
    display: flex; gap: 15px;
    z-index: 90;
}
.fab {
    width: 64px; height: 64px;
    border-radius: 32px;
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}
.fab.primary {
    background: var(--accent-color);
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
}
.fab.secondary {
    background: #ffffff;
    color: var(--accent-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
}
.fab:active { transform: scale(0.9); }

hr#divider {
    border: 0;
    border-top: 2px solid rgba(0,0,0,0.05);
    margin: 10px 20px;
}

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200; display: flex; align-items: flex-end;
    opacity: 1; transition: opacity 0.3s;
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; }
.modal-content {
    width: 100%; background: #ffffff;
    border-top-left-radius: 28px; border-top-right-radius: 28px;
    padding: 30px; transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 -10px 40px rgba(0,0,0,0.1);
}
.modal-overlay.hidden .modal-content { transform: translateY(100%); }

.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; }
.modal-header h2 { font-size: 1.4rem; font-weight: 600; color: var(--text-color); }
.modal-header .btn-icon-ghost { color: var(--text-color); }

textarea {
    width: 100%; height: 140px;
    background: #f5f5f5; border: 1px solid #e0e0e0;
    border-radius: 16px; color: var(--text-color);
    padding: 18px; font-family: inherit; font-size: 1.05rem;
    resize: none; margin-bottom: 20px;
}
textarea:focus { outline: none; border-color: var(--accent-color); }

.form-actions { display: flex; flex-direction: column; gap: 20px; margin-bottom: 30px; }
.color-picker { display: flex; gap: 15px; }
.color-picker input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
.color-picker label {
    width: 36px; height: 36px; border-radius: 50%;
    cursor: pointer; border: 3px solid transparent;
    transition: transform 0.2s; box-shadow: var(--shadow);
}
.color-picker input[type="radio"]:checked + label {
    border-color: var(--text-color); transform: scale(1.15);
}

.file-upload { display: flex; align-items: center; gap: 12px; }
.file-upload .btn-icon { width: auto; padding: 0 20px; border-radius: 20px; font-size: 0.95rem; gap: 8px; }
.file-name { font-size: 0.85rem; color: #666; max-width: 150px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.btn-primary {
    width: 100%; padding: 18px; border-radius: 16px;
    background: var(--accent-color); color: white;
    border: none; font-weight: 600; font-size: 1.15rem;
    cursor: pointer; box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
}

@media (min-width: 768px) {
    .modal-overlay { align-items: center; justify-content: center; }
    .modal-content { width: 550px; border-radius: 28px; }
    .modal-overlay.hidden .modal-content { transform: translateY(30px) scale(0.95); opacity: 0; }
}