:root {
    --bg-main: #09090b;
    --bg-header: #121212;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --color-lek: #10b981;
    --color-lab: #f97316;
    --color-prac: #3b82f6;
    --border-color: #27272a;
    --accent-bg: #27272a;
    --danger: #ef4444;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0; padding: 0;
    display: flex; flex-direction: column;
    height: 100vh; height: 100dvh;
    overflow: hidden;
}

@media (min-width: 481px) {
    html { background-color: #000; }
    body { max-width: 480px; margin: 0 auto; border-left: 1px solid var(--border-color); border-right: 1px solid var(--border-color); }
}

/* Loader */
#loader { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--bg-main); z-index: 9999; display: flex; justify-content: center; align-items: center; transition: opacity 0.5s ease; }
.spinner { width: 40px; height: 40px; border: 4px solid #3f3f46; border-top: 4px solid var(--color-prac); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Header */
.header-container { background-color: var(--bg-header); padding: calc(15px + env(safe-area-inset-top)) 15px 0 15px; display: flex; flex-direction: column; gap: 15px; border-bottom: 1px solid var(--border-color); flex-shrink: 0; z-index: 10; }
.header-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }

.date-info { flex: 1; min-width: 0; }
.date-info h1 { margin: 0; font-size: 1.5rem; font-weight: 700; letter-spacing: -0.5px; line-height: 1.1; }
.date-info p { margin: 6px 0 0 0; color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.date-pill { flex-shrink: 0; padding: 8px 16px; background: #18181b; border: 1px solid #27272a; border-radius: 20px; color: var(--text-secondary); font-size: 0.9rem; font-weight: 600; transition: all 0.2s; cursor: pointer; }
.date-pill.active { background: #fff; color: #000; border-color: #fff; transform: scale(1.02); }

/* Выделение сегодняшней даты */
.date-pill.today-pill { border-color: var(--color-prac); color: var(--color-prac); }
.date-pill.today-pill.active { background: var(--color-prac); color: #fff; border-color: var(--color-prac); }

.group-badge { display: inline-block; font-size: 0.7rem; background: rgba(59, 130, 246, 0.1); color: var(--color-prac); padding: 2px 6px; border-radius: 6px; border: 1px solid rgba(59, 130, 246, 0.2); font-weight: 800; vertical-align: middle; margin-left: 4px; }
.week-badge { display: inline-block; padding: 2px 8px; border-radius: 6px; background: rgba(255,255,255,0.08); font-size: 0.75rem; color: #fff; letter-spacing: 0.3px; }

.controls-right { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }

.settings-btn { background: transparent; border: none; color: var(--text-secondary); width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: 0.2s; cursor: pointer; }
.settings-btn:active { background-color: rgba(255,255,255,0.1); color: #fff; }
.settings-btn svg { width: 22px; height: 22px; fill: currentColor; }

/* Navigation */
.nav-container { position: relative; width: 100%; overflow: hidden; padding-bottom: 10px; }

.date-nav-scroll { display: flex; gap: 8px; overflow-x: auto; scroll-behavior: smooth; -webkit-overflow-scrolling: touch; padding: 0 10px 10px 10px; margin-bottom: -10px; }
.date-nav-scroll::-webkit-scrollbar { display: none; }
.date-pill { flex-shrink: 0; padding: 8px 16px; background: #18181b; border: 1px solid #27272a; border-radius: 20px; color: var(--text-secondary); font-size: 0.9rem; font-weight: 600; transition: all 0.2s; cursor: pointer; }
.date-pill.active { background: #fff; color: #000; border-color: #fff; transform: scale(1.02); }

/* Slider */
.slider-container { flex-grow: 1; position: relative; overflow: hidden; width: 100%; }
.slides-wrapper { display: flex; height: 100%; transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1); }
.day-slide { min-width: 100%; height: 100%; overflow-y: auto; padding: 15px; padding-bottom: 120px; box-sizing: border-box; }

/* Lesson Cards */
.lesson-card { display: flex; background-color: #18181b; border: 1px solid #3f3f46; border-radius: 16px; margin-bottom: 10px; min-height: 85px; position: relative; transition: transform 0.1s; cursor: pointer; overflow: hidden; }
.lesson-card:active { transform: scale(0.97); background-color: #27272a; }
.lesson-card.hidden { display: none; }

.type-indicator { width: 6px; height: 100%; position: absolute; left: 0; top: 0; }
.lesson-card[data-raw-type="ЛР"] .type-indicator { background-color: var(--color-lab); }
.lesson-card[data-raw-type="ЛЕК"] .type-indicator { background-color: var(--color-lek); }
.lesson-card[data-raw-type="ПР"] .type-indicator { background-color: var(--color-prac); }

.card-content { display: flex; width: 100%; padding-left: 6px; }
.card-time-col { width: 65px; display: flex; flex-direction: column; justify-content: center; align-items: center; padding: 10px 5px; border-right: 1px solid rgba(255,255,255,0.05); }
.time-start { font-size: 1rem; font-weight: 700; color: #fff; line-height: 1; }
.time-end { font-size: 0.75rem; color: var(--text-secondary); margin-top: 4px; }
.lesson-type-badge { font-size: 0.65rem; font-weight: 800; text-transform: uppercase; margin-top: 6px; background: rgba(255,255,255,0.1); padding: 2px 6px; border-radius: 4px; }
.card-info-col { flex: 1; padding: 12px 15px; display: flex; flex-direction: column; justify-content: center; gap: 4px; min-width: 0; }
.lesson-subject { font-size: 0.95rem; font-weight: 600; color: #fff; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lesson-meta { display: flex; align-items: center; gap: 10px; font-size: 0.8rem; color: var(--text-secondary); }
.lesson-room { color: #e4e4e7; font-weight: 500; display: flex; align-items: center; gap: 4px; }

.empty-msg { text-align: center; color: #555; margin-top: 30vh; font-weight: 500; display: none; }
.empty-msg.visible { display: block; }

/* Modals Common */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); backdrop-filter: blur(8px); z-index: 3000; opacity: 0; visibility: hidden; transition: 0.3s; display: flex; align-items: center; justify-content: center; }
.modal-overlay.open { opacity: 1; visibility: visible; }

/* Info Modal */
.modal-content {
    background: #18181b; width: 85%; max-width: 380px;
    border-radius: 20px; padding: 25px; border: 1px solid #3f3f46;
    transform: scale(0.9); transition: 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
    max-height: 80vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* Плавный скролл для iOS */
    overscroll-behavior: contain;
    box-sizing: border-box; /* Обязательно: не дает отступам увеличивать окно */
}
.modal-overlay.open .modal-content { transform: scale(1); }

/* --- SETTINGS DRAWER STYLES --- */
.settings-drawer {
    position: fixed; top: 0; right: 0; width: 100%; height: 100%;
    background: rgba(9, 9, 11, 0.8); backdrop-filter: blur(12px);
    z-index: 4000; visibility: hidden; opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.settings-drawer.open { visibility: visible; opacity: 1; }

.settings-panel {
    position: absolute; bottom: 0; width: 100%; max-width: 480px;
    background: #18181b; border-radius: 30px 30px 0 0;
    border-top: 1px solid #3f3f46; padding: 25px 20px calc(25px + env(safe-area-inset-bottom));
    transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
}
.settings-drawer.open .settings-panel { transform: translateY(0); }

.drawer-handle { width: 40px; height: 4px; background: #3f3f46; border-radius: 2px; margin: -10px auto 20px; }
.settings-section-title { font-size: 0.75rem; color: #71717a; text-transform: uppercase; font-weight: 800; letter-spacing: 1px; margin: 20px 0 12px 5px; }

.settings-group-card {
    background: #27272a; border-radius: 16px; margin-bottom: 8px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; border: 1px solid transparent; transition: 0.2s;
    cursor: pointer;
}
.settings-group-card.active { border-color: var(--color-prac); background: rgba(59, 130, 246, 0.05); }
.group-info { display: flex; align-items: center; gap: 12px; flex: 1; }
.group-icon { width: 36px; height: 36px; background: #18181b; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--color-prac); }
.group-name { font-weight: 600; font-size: 1rem; }

.settings-actions { display: flex; gap: 8px; }
.btn-action { width: 36px; height: 36px; border-radius: 10px; border: none; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.2s; background: transparent; color: #a1a1aa; }
.btn-action:active { transform: scale(0.9); }
.btn-delete:hover { color: var(--danger); background: rgba(239, 68, 68, 0.1); }
.btn-select { color: var(--color-prac); background: rgba(59, 130, 246, 0.1); }

.btn-add-group {
    width: 100%; padding: 14px; border-radius: 16px; background: #fff; color: #000;
    border: none; font-weight: 700; font-size: 0.95rem; margin-top: 10px;
    cursor: pointer; transition: 0.2s;
}
.btn-add-group:active { transform: scale(0.98); opacity: 0.9; }

/* --- SEARCH MODAL --- */
.search-modal-content {
    background: #18181b; width: 90%; max-width: 400px;
    border-radius: 20px; padding: 20px;
    border: 1px solid #3f3f46;
    display: flex; flex-direction: column; gap: 15px;
    max-height: 80vh;
}

.search-input-wrapper { position: relative; }
.search-input {
    width: 100%; box-sizing: border-box;
    background: #27272a; border: 1px solid transparent;
    border-radius: 12px; padding: 14px 16px;
    color: #fff; font-size: 1rem; outline: none;
    transition: 0.2s;
}
.search-input:focus { border-color: var(--color-prac); background: #000; }

.search-results {
    flex: 1; overflow-y: auto;
    max-height: 300px; display: none;
    flex-direction: column; gap: 5px; margin-top: 5px;
}
.search-results.visible { display: flex; }

.search-result-item {
    padding: 12px 14px; background: #27272a; border-radius: 10px;
    color: #e4e4e7; cursor: pointer; transition: 0.2s;
    font-size: 0.95rem; display: flex; justify-content: space-between; align-items: center;
}
.search-result-item:active { background: #3f3f46; transform: scale(0.98); }
.search-match { color: var(--color-prac); font-weight: 700; }

.modal-close-btn {
    background: #3f3f46; color: #fff; border: none;
    padding: 12px; border-radius: 12px; font-weight: 600;
    cursor: pointer; margin-top: 10px;
}

/* --- EMPTY STATE --- */
.empty-state-container {
    display: none;
    flex-direction: column; align-items: center; justify-content: center;
    height: 100%; width: 100%; text-align: center; padding: 40px; box-sizing: border-box;
}
.empty-state-container.visible { display: flex; }

.empty-icon { width: 80px; height: 80px; margin-bottom: 20px; color: #3f3f46; }
.empty-title { font-size: 1.5rem; font-weight: 700; margin: 0 0 10px 0; color: #fff; }
.empty-desc { font-size: 0.95rem; color: var(--text-secondary); margin: 0 0 30px 0; line-height: 1.5; max-width: 300px; }

.btn-primary-action {
    background: var(--color-prac); color: #fff; border: none;
    padding: 16px 32px; border-radius: 16px; font-size: 1rem; font-weight: 700;
    cursor: pointer; box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    transition: 0.2s; display: flex; align-items: center; gap: 8px;
}
.btn-primary-action:active { transform: scale(0.96); opacity: 0.9; }

/* --- PC MODAL FIX --- */
@media (min-width: 481px) {
    .settings-drawer {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .settings-panel {
        position: relative;
        bottom: auto;
        width: 100%;
        max-width: 400px;
        border-radius: 24px;
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        transform: scale(0.95);
        opacity: 0;
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
        padding-bottom: 25px;
    }

    .settings-drawer.open .settings-panel {
        transform: scale(1);
        opacity: 1;
    }

    .drawer-handle {
        display: none;
    }
}