/* ==========================================================================
   DrumNT — дизайн-система
   Тёмная, редакторская, без сборки (никакого npm на сервере не нужно).
   Один файл покрывает и публичный сайт, и админку, и кабинет ученика —
   поэтому классы вроде .card/.btn/.badge используются везде, но выглядят
   в едином языке.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
    /* --- Поверхности --- */
    --bg: #0a0a0b;
    --bg-elevated: #111113;
    --surface: #17171a;
    --surface-2: #1e1e22;

    /* --- Линии --- */
    --line: rgba(255, 255, 255, 0.10);
    --line-strong: rgba(255, 255, 255, 0.20);

    /* --- Текст --- */
    --text: #f3f1ec;
    --text-dim: #b7b3ab;
    --text-muted: #78756f;

    /* --- Акцент: приглушённая тёплая бронза --- */
    --accent: #b8863f;
    --accent-strong: #d9a75f;
    --accent-dim: rgba(184, 134, 63, 0.14);

    /* --- Статусы (холодные/тёплые тона, не пастель) --- */
    --st-pending: #cf9a4c;
    --st-confirmed: #6f9bb0;
    --st-done: #7f9770;
    --st-off: #6a6763;
    --st-danger: #a5584a;

    --radius: 2px;
    --font-display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--text-dim);
    background: var(--bg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--text);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); margin-top: 0; }
a { color: inherit; }
p { margin: 0 0 1em; }

.eyebrow {
    display: block;
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.72rem;
    color: var(--accent-strong);
    margin-bottom: 14px;
}

/* ===================== Хедер / навигация ===================== */
.site-header {
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 50;
}
.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}
.logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text);
    text-decoration: none;
}
nav a, .link-button {
    margin-left: 28px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color 0.2s ease;
}
nav a:hover, .link-button:hover { color: var(--text); }
.link-button { background: none; border: none; cursor: pointer; font-family: inherit; padding: 0; }

.button-link {
    color: var(--text) !important;
    padding: 9px 18px;
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    transition: background 0.2s ease, color 0.2s ease;
}
.button-link:hover { background: var(--accent); color: var(--bg) !important; }

main.container {
    padding-top: 40px;
    padding-bottom: 80px;
    min-height: 60vh;
}

.site-footer {
    border-top: 1px solid var(--line);
    padding: 28px 0;
    color: var(--text-muted);
    font-size: 0.82rem;
}

/* ===================== Уведомления ===================== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 0.92rem;
    border: 1px solid var(--line);
}
.alert-success { border-color: var(--st-done); color: var(--text); background: rgba(127, 151, 112, 0.08); }
.alert-error { border-color: var(--st-danger); color: var(--text); background: rgba(165, 88, 74, 0.1); }
.alert-info { border-color: var(--st-confirmed); color: var(--text-dim); background: rgba(111, 155, 176, 0.08); }
.alert ul { margin: 0; padding-left: 20px; }

/* ===================== Карточки, общие блоки ===================== */
.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
}

.hero { padding: 30px 0; }

/* ===================== Формы: тонкая линия снизу, без "коробок" ===================== */
form.stack label {
    display: block;
    margin-bottom: 20px;
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.72rem;
    color: var(--text-muted);
}
form.stack input,
form.stack select,
form.stack textarea {
    display: block;
    width: 100%;
    padding: 10px 2px;
    margin-top: 10px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--line-strong);
    border-radius: 0;
    color: var(--text);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color 0.2s ease;
}
form.stack input:focus,
form.stack select:focus,
form.stack textarea:focus {
    outline: none;
    border-bottom-color: var(--accent);
}
form.stack select { background: var(--bg-elevated); border: 1px solid var(--line-strong); padding: 10px 8px; }
form.stack textarea { border: 1px solid var(--line-strong); padding: 10px; }

/* ===================== Кнопки ===================== */
.btn {
    display: inline-block;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--accent);
    padding: 11px 22px;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}
.btn:hover { background: var(--accent); color: var(--bg); }
.btn:active { transform: translateY(1px); }
.btn-secondary { border-color: var(--line-strong); color: var(--text-dim); }
.btn-secondary:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { border-color: var(--st-danger); color: var(--st-danger); }
.btn-danger:hover { background: var(--st-danger); color: var(--bg); }
.btn-small { padding: 6px 12px; font-size: 0.7rem; }

.inline-form { display: inline; }

/* ===================== Публичный календарь (главная) ===================== */
.day-group { margin-bottom: 28px; }
.day-title {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.85rem;
    color: var(--text);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
}
.slot-list { display: flex; flex-wrap: wrap; gap: 10px; }
.slot-chip {
    display: inline-block;
    padding: 10px 18px;
    background: transparent;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-dim);
    font-family: var(--font-display);
    font-size: 0.88rem;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.slot-chip:hover { border-color: var(--accent); color: var(--text); background: var(--accent-dim); }

/* ===================== Таблицы ===================== */
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); font-size: 0.88rem; color: var(--text-dim); }
th { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.7rem; color: var(--text-muted); }

/* ===================== Статусы ===================== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius);
    font-family: var(--font-display);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 1px solid currentColor;
}
.badge-pending { color: var(--st-pending); }
.badge-confirmed { color: var(--st-confirmed); }
.badge-cancelled, .badge-declined { color: var(--st-off); }
.badge-completed { color: var(--st-done); }

/* ===================== Админка: недельный календарь ===================== */
.week-nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.week-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.week-day { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; min-height: 120px; }
.week-day-title {
    font-family: var(--font-display);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
}
.slot-cell {
    display: block;
    width: 100%;
    padding: 7px 9px;
    margin-bottom: 6px;
    border-radius: var(--radius);
    font-size: 0.78rem;
    border: 1px solid var(--line-strong);
    border-left: 2px solid var(--line-strong);
    text-align: left;
    background: var(--bg-elevated);
    color: var(--text-dim);
    cursor: pointer;
}
.slot-cell.free { border-left-color: var(--text-muted); }
.slot-cell.pending { border-left-color: var(--st-pending); color: var(--text); }
.slot-cell.confirmed { border-left-color: var(--st-confirmed); color: var(--text); }

details.slot-details { margin-bottom: 6px; }
details.slot-details summary { list-style: none; cursor: pointer; }
details.slot-details summary::-webkit-details-marker { display: none; }
.slot-popover {
    background: var(--surface-2);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    padding: 12px;
    margin-top: 4px;
    font-size: 0.85rem;
}
.slot-popover form { margin-bottom: 8px; }
.slot-popover input, .slot-popover select {
    width: 100%;
    padding: 7px;
    margin: 4px 0;
    background: var(--bg-elevated);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.85rem;
}

.muted { color: var(--text-muted); font-size: 0.9rem; }

/* ==========================================================================
   Ниже — только для публичного лендинга (resources/views/home.blade.php).
   Админку и кабинет эти классы не затрагивают.
   ========================================================================== */

.section { padding: clamp(56px, 9vw, 120px) 0; border-top: 1px solid var(--line); }
.section:first-child { border-top: none; }

/* --- Hero --- */
.hero-full {
    min-height: 88vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 0 60px;
    position: relative;
}
.hero-full h1 { max-width: 15ch; }
.hero-sub { max-width: 46ch; font-size: 1.05rem; color: var(--text-dim); }
.hero-meta {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
}
.hero-meta div { font-size: 0.8rem; color: var(--text-muted); }
.hero-meta strong {
    display: block;
    font-family: var(--font-display);
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 2px;
}
.scroll-hint {
    position: absolute;
    bottom: 0;
    right: 24px;
    writing-mode: vertical-rl;
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* --- Портрет преподавателя (плейсхолдер, легко заменить на <img>) --- */
.portrait-frame {
    aspect-ratio: 4 / 5;
    background:
        linear-gradient(160deg, var(--surface) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
    text-align: center;
    padding: 20px;
}
.split {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: clamp(32px, 6vw, 80px);
    align-items: center;
}
@media (max-width: 800px) {
    .split { grid-template-columns: 1fr; }
}

.stat-row { display: flex; gap: 36px; margin-top: 32px; flex-wrap: wrap; }
.stat-row div strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--text);
}
.stat-row div span {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

/* --- Нумерованные фичи (без карточек-иконок) --- */
.feature-list { border-top: 1px solid var(--line); }
.feature-row {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 24px;
    padding: 32px 0;
    border-bottom: 1px solid var(--line);
}
.feature-row .num {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--accent-strong);
}
.feature-row h3 { font-size: 1.2rem; margin-bottom: 8px; }
.feature-row p { color: var(--text-dim); max-width: 60ch; margin: 0; }
@media (max-width: 640px) {
    .feature-row { grid-template-columns: 1fr; gap: 8px; }
}

/* --- Форматы / стоимость --- */
.format-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.format-cell { background: var(--bg); padding: 36px; }
.format-cell .price { font-family: var(--font-display); font-size: 2rem; color: var(--text); margin: 12px 0; }
@media (max-width: 640px) { .format-grid { grid-template-columns: 1fr; } }

/* --- Цитата / отзыв --- */
.pull-quote { max-width: 760px; }
.pull-quote .mark { font-family: var(--font-display); font-size: 3.5rem; color: var(--accent); line-height: 1; display: block; margin-bottom: 8px; }
.pull-quote p { font-family: var(--font-display); font-size: clamp(1.2rem, 2.4vw, 1.7rem); color: var(--text); font-weight: 500; line-height: 1.4; }
.pull-quote cite { display: block; margin-top: 16px; font-style: normal; color: var(--text-muted); font-size: 0.85rem; }

/* --- FAQ --- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 0;
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--accent-strong); font-size: 1.3rem; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding-bottom: 20px; max-width: 65ch; }

/* --- Плавное появление при скролле --- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* --- Календарь записи на главной --- */
.cal-wrap {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(24px, 4vw, 64px);
    align-items: start;
}
@media (max-width: 860px) {
    .cal-wrap { grid-template-columns: 1fr; }
}

.cal-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.cal-month-label {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.95rem;
    color: var(--text);
}
.cal-nav-btn {
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 1px solid var(--line-strong);
    padding: 7px 14px;
    border-radius: var(--radius);
    transition: border-color 0.2s ease, color 0.2s ease;
}
.cal-nav-btn:hover { border-color: var(--accent); color: var(--text); }
.cal-nav-btn.is-disabled { opacity: 0.3; pointer-events: none; }

.cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: 8px;
}
.cal-weekdays span {
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    padding-bottom: 8px;
}

.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.cal-day {
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.95rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: not-allowed;
    padding: 0;
    opacity: 0.55;
}
.cal-day.is-pad { border-color: transparent; opacity: 0; pointer-events: none; cursor: default; }
.cal-day.has-slots {
    color: var(--text);
    border-color: var(--accent);
    background: var(--accent-dim);
    cursor: pointer;
    opacity: 1;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}
.cal-day.has-slots:hover { border-color: var(--accent-strong); background: var(--accent-dim); transform: translateY(-1px); }
.cal-day.is-selected { border-color: var(--accent-strong); background: var(--accent-dim); box-shadow: 0 0 0 1px var(--accent-strong); }
.cal-day .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-strong);
}
.cal-day.is-today:not(.has-slots) { color: var(--accent-strong); opacity: 0.85; }

.times-panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    background: var(--surface);
    min-height: 220px;
}
.times-panel-date {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.times-list { display: flex; flex-wrap: wrap; gap: 10px; }
.day-times { display: none; }
.day-times.is-active { display: block; }

/* ===================== Пустые состояния (единый паттерн) ===================== */
.empty-state {
    padding: 28px 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===================== Кастомная модалка подтверждения (замена window.confirm) ===================== */
.ui-modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 11, 0.7);
    backdrop-filter: blur(2px);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.ui-modal-backdrop.is-open { display: flex; }
.ui-modal {
    background: var(--surface);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    padding: 28px;
    max-width: 380px;
    width: 100%;
}
.ui-modal-text {
    color: var(--text);
    font-size: 1rem;
    margin: 0 0 20px;
}
.ui-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ===================== Мобильная адаптивность ===================== */
@media (max-width: 560px) {
    .header-row { flex-wrap: wrap; gap: 10px 0; padding-top: 14px; padding-bottom: 14px; }
    .header-row nav { display: flex; flex-wrap: wrap; gap: 8px 16px; width: 100%; }
    .header-row nav a, .header-row nav .link-button { margin-left: 0; }

    .week-grid { grid-template-columns: 1fr; gap: 14px; }

    .cal-nav-btn { padding: 6px 10px; font-size: 0.68rem; white-space: nowrap; }
    .week-nav { flex-wrap: wrap; gap: 10px; }
}