/* Базовые стили и сброс */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1d4ed8;
    --danger-color: #dc2626;
    --success-color: #16a34a;
    --warning-color: #d97706;
    --text-dark: #18181b;
    --text-light: #71717a;
    --bg-light: #f4f4f5;
    /* Фон страницы / «холст» партитуры и кнопок в теме песни (меняйте вместе с фоном body при смене темы) */
    --song-page-bg: var(--bg-light);
    /* Партитура: акцентные цвета кнопок и линий */
    --score-green: #14532d;
    --score-red: #7f1d1d;
    /* Текст строки партитуры (просмотр / концерт) */
    --score-lyric-color: #1e293b;
    --score-btn-icon-size: 1.65rem;
    --score-btn-radius: 5px;
    --line-border-soft: rgba(15, 23, 42, 0.12);
    --line-border-mid: rgba(15, 23, 42, 0.15);
    --line-border-strong: rgba(15, 23, 42, 0.18);
    --toast-error-bg: #991b1b;
    --toast-ok-bg: var(--score-green);
    --bg-white: #ffffff;
    --border-color: #e4e4e7;
    --shadow-light: 0 0.0625rem 0.1875rem rgba(15, 23, 42, 0.06);
    --shadow-medium: 0 0.25rem 0.75rem rgba(15, 23, 42, 0.08);
    --shadow-heavy: 0 0.75rem 1.5rem rgba(15, 23, 42, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-pill: 999px;
    --radius-card: 14px;
    /* Font scale (small, strict set) */
    --font-xs: 0.85rem;
    --font-875: 0.875rem;
    --font-sm: 0.9rem;
    --font-0-95: 0.95rem;
    --font-0-9375: 0.9375rem;
    --font-md: 1rem;
    --font-lg: 1.05rem;
    --font-xl: 1.125rem;
    --font-2xl: 1.25rem;
    --font-3xl: 2.5rem;
    --font-0-6875: 0.6875rem;

    --btn-font-size: var(--font-sm);
    --space-page: clamp(1rem, 3vw, 1.5rem);
    /* Button variants */
    --btn-danger-bg: rgba(244, 63, 94, 0.06);
    --btn-danger-border: rgba(244, 63, 94, 0.22);
    /* Режим редактирования партитуры: границы, тумблеры, FAB, тулбар, поля */
    --score-edit-border-soft: rgba(15, 23, 42, 0.12);
    --score-edit-border-mid: rgba(15, 23, 42, 0.15);
    --score-edit-border-strong: rgba(15, 23, 42, 0.22);
    --score-edit-border-chord: rgba(15, 23, 42, 0.18);
    --score-edit-border-chord-2: rgba(15, 23, 42, 0.2);
    --score-edit-border-chord-focus: rgba(15, 23, 42, 0.35);
    --score-key-toggle-track-bg: rgba(15, 23, 42, 0.06);
    --score-key-toggle-pill-bg: #ffffff;
    --score-key-toggle-pill-text: #0f172a;
    --score-key-toggle-muted-text: #334155;
    --score-key-toggle-shadow: 0 1px 2px rgba(15, 23, 42, 0.1);
    --score-key-toggle-focus-ring: #94a3b8;
    --score-fab-bg: #111111;
    --score-fab-fg: #ffffff;
    --score-fab-border-active: #94a3b8;
    --score-back-btn-bg: #111111;
    --score-back-btn-fg: #ffffff;
    --score-tool-btn-bg: rgba(255, 255, 255, 0.92);
    --score-tool-btn-border: rgba(15, 23, 42, 0.12);
    --score-tool-btn-border-on: rgba(15, 23, 42, 0.28);
    --score-tool-btn-color: #18181b;
    --score-chord-label-color: #0f172a;
    --score-chord-inline-editor-color: #0f172a;
    --score-bpm-input-bg: #ffffff;
    --score-bpm-input-focus-shadow: 0 0 0 1px rgba(15, 23, 42, 0.12);
    --score-comment-draft-bg: #fef9c3;
    --score-comment-draft-border: #fde047;
    --score-comment-draft-text: #713f12;
    --score-comment-draft-border-focus: #eab308;
    --score-comment-draft-placeholder: rgba(113, 63, 18, 0.55);
    --score-member-pub-track-off: #cbd5e1;
    --score-member-pub-track-on: #16a34a;
    --score-edit-panel-scrim: rgba(255, 255, 255, 0.98);
    --score-focus-ring-add: #86efac;
    --score-focus-ring-danger: #fca5a5;
    --score-focus-ring-section: rgba(255, 255, 255, 0.6);
    /* Иконка «оффлайн-плейлист» рядом с названием: читается и на светлом, и на тёмном фоне */
    --playlist-offline-icon: #64748b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.55;
    color: var(--text-dark);
    background: var(--song-page-bg);
}

.container {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 var(--space-page);
}

a {
    text-decoration: none;
    color: inherit;
}

button, .btn {
    cursor: pointer;
    border: none;
    font-family: inherit;
    /* Не анимируем всё подряд: на мобилках это лишняя нагрузка. */
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

/* Утилитные классы */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* ——— Тёмная тема: выбор пользователя (data-theme на body из БД) + превью на /settings через :has(radio) ——— */
body[data-theme="dark"],
body:has(input[name="design_theme"][value="dark"]:checked) {
    --primary-color: #3b82f6;
    --secondary-color: #2563eb;
    --danger-color: #f87171;
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --text-dark: #f4f4f5;
    --text-light: #a1a1aa;
    --bg-light: #27272a;
    --song-page-bg: #18181b;
    --score-green: #22c55e;
    --score-red: #f87171;
    --score-lyric-color: #e2e8f0;
    --line-border-soft: rgba(244, 244, 245, 0.1);
    --line-border-mid: rgba(244, 244, 245, 0.14);
    --line-border-strong: rgba(244, 244, 245, 0.18);
    --toast-error-bg: #7f1d1d;
    --toast-ok-bg: #14532d;
    --bg-white: #27272a;
    --border-color: #3f3f46;
    --shadow-light: 0 0.0625rem 0.1875rem rgba(0, 0, 0, 0.35);
    --shadow-medium: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.45);
    --shadow-heavy: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.5);
    --score-edit-border-soft: rgba(244, 244, 245, 0.1);
    --score-edit-border-mid: rgba(244, 244, 245, 0.14);
    --score-edit-border-strong: rgba(244, 244, 245, 0.26);
    --score-edit-border-chord: rgba(244, 244, 245, 0.16);
    --score-edit-border-chord-2: rgba(244, 244, 245, 0.22);
    --score-edit-border-chord-focus: rgba(244, 244, 245, 0.45);
    --score-key-toggle-track-bg: rgba(0, 0, 0, 0.28);
    --score-key-toggle-pill-bg: #3f3f46;
    --score-key-toggle-pill-text: #f4f4f5;
    --score-key-toggle-muted-text: #a1a1aa;
    --score-key-toggle-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
    --score-key-toggle-focus-ring: #60a5fa;
    --score-fab-bg: #3f3f46;
    --score-fab-fg: #f4f4f5;
    --score-fab-border-active: #60a5fa;
    --score-back-btn-bg: #3f3f46;
    --score-back-btn-fg: #f4f4f5;
    --score-tool-btn-bg: rgba(39, 39, 42, 0.96);
    --score-tool-btn-border: rgba(244, 244, 245, 0.12);
    --score-tool-btn-border-on: rgba(96, 165, 250, 0.45);
    --score-tool-btn-color: #f4f4f5;
    --score-chord-label-color: #e2e8f0;
    --score-chord-inline-editor-color: #e2e8f0;
    --score-bpm-input-bg: #27272a;
    --score-bpm-input-focus-shadow: 0 0 0 1px rgba(96, 165, 250, 0.4);
    --score-comment-draft-bg: #422006;
    --score-comment-draft-border: #a16207;
    --score-comment-draft-text: #fef3c7;
    --score-comment-draft-border-focus: #fbbf24;
    --score-comment-draft-placeholder: rgba(254, 243, 199, 0.5);
    --score-member-pub-track-off: #52525b;
    --score-member-pub-track-on: #4ade80;
    --score-edit-panel-scrim: rgba(24, 24, 27, 0.98);
    --score-focus-ring-add: #4ade80;
    --score-focus-ring-danger: #f87171;
    --score-focus-ring-section: rgba(96, 165, 250, 0.65);
    --playlist-offline-icon: #94a3b8;

    /* Danger-pill buttons (playlist/song actions) */
    --btn-danger-bg: rgba(248, 113, 113, 0.10);
    --btn-danger-border: rgba(248, 113, 113, 0.32);
}

body[data-theme="dark"] .form-control:focus,
body:has(input[name="design_theme"][value="dark"]:checked) .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.125rem rgba(59, 130, 246, 0.35);
}

body[data-theme="dark"] .alert-error,
body:has(input[name="design_theme"][value="dark"]:checked) .alert-error {
    background: rgba(127, 29, 29, 0.45);
    border-color: #991b1b;
    color: #fecaca;
}

body[data-theme="dark"] .alert-success,
body:has(input[name="design_theme"][value="dark"]:checked) .alert-success {
    background: rgba(20, 83, 45, 0.45);
    border-color: #166534;
    color: #bbf7d0;
}