/* ==========================================================================
   GUITARPRO.VN — SIGNATURE DEEP MIDNIGHT NAVY DARK THEME
   Kế thừa 100% từ Hệ thống Design Tokens của HopAm.vn
   Tương thích: WordPress Classic Themes, Full Site Editing (FSE), Elementor, Bricks
   ========================================================================== */

/* 1. KHAI BÁO BIẾN MÀU TOÀN CỤC (DESIGN TOKENS) */
:root {
  color-scheme: dark;

  /* Nền và Bề mặt (Deep Midnight Navy) */
  --gp-canvas: #070d19;            /* Nền chính toàn trang */
  --gp-surface: #0e172e;           /* Nền Card, Box nội dung, Header, Sidebar */
  --gp-surface-subtle: #152243;    /* Nền phụ, Tag, Ô tìm kiếm, Dòng lẻ */
  --gp-surface-hover: #1e305e;     /* Màu khi rê chuột vào */

  /* Đường viền kính mờ (Glassmorphism) */
  --gp-border: rgba(255, 255, 255, 0.08);
  --gp-border-strong: rgba(255, 255, 255, 0.16);

  /* Kiểu chữ chống mỏi mắt */
  --gp-text-main: #f8fafc;         /* Tiêu đề, tên bài hát (Trắng sáng) */
  --gp-text-muted: #94a3b8;        /* Tên ca sĩ, nhạc sĩ, lượt tải (Xám Slate) */
  --gp-text-subtle: #64748b;       /* Chú thích nhỏ, ngày tháng */

  /* Màu nhận diện thương hiệu & Hành động */
  --gp-primary: #fa2d48;           /* Đỏ Apple Music (Play, CTA chính) */
  --gp-primary-hover: #ff375f;
  --gp-amber: #f59e0b;             /* Vàng Hổ Phách (Nốt nhạc, Hợp âm, PRO) */
  --gp-amber-hover: #fbbf24;
  --gp-emerald: #10b981;           /* Xanh Lục Bảo (Nút Download GP5/GPX) */
  --gp-emerald-hover: #059669;

  /* Đổ bóng */
  --gp-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --gp-shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  --gp-shadow-glow: 0 0 20px rgba(250, 45, 72, 0.25);

  /* Bán kính bo góc */
  --gp-radius-sm: 8px;
  --gp-radius-md: 12px;
  --gp-radius-lg: 16px;
  --gp-radius-pill: 9999px;
}

/* 2. THIẾT LẬP CƠ BẢN TOÀN TRANG */
body {
  background-color: var(--gp-canvas) !important;
  color: var(--gp-text-main) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--gp-primary);
}

/* Thanh cuộn trang (Scrollbar) chuẩn Midnight */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--gp-canvas);
}
::-webkit-scrollbar-thumb {
  background: var(--gp-surface-subtle);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gp-surface-hover);
}

/* 3. KHUNG BỐ CỤC (LAYOUT CONTAINERS) */
.gp-container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 16px;
  padding-right: 16px;
  box-sizing: border-box;
}

.gp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
@media (max-width: 640px) {
  .gp-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

/* 4. THANH ĐIỀU HƯỚNG HEADER KÍNH MỜ */
.gp-header {
  background: rgba(14, 23, 46, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gp-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0;
}

/* 5. THẺ BÀI HÁT / TAB GUITAR (CARD) */
.gp-card {
  background-color: var(--gp-surface);
  border: 1px solid var(--gp-border);
  border-radius: var(--gp-radius-lg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--gp-shadow-sm);
  box-sizing: border-box;
  position: relative;
}
.gp-card:hover {
  transform: translateY(-3px);
  border-color: var(--gp-border-strong);
  background-color: var(--gp-surface-subtle);
  box-shadow: var(--gp-shadow-md);
}

/* Ảnh đại diện 1:1 của Card */
.gp-card-thumb-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--gp-radius-md);
  overflow: hidden;
  background-color: var(--gp-surface-subtle);
  margin-bottom: 12px;
  position: relative;
}
.gp-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.gp-card:hover .gp-card-thumb {
  transform: scale(1.04);
}

.gp-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--gp-text-main);
  margin: 0 0 4px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gp-card-meta {
  font-size: 12px;
  color: var(--gp-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* 6. NÚT BẤM (BUTTONS) */
.gp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--gp-radius-pill);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  text-decoration: none;
  box-sizing: border-box;
}

.gp-btn-primary {
  background: linear-gradient(135deg, #fa2d48 0%, #ff375f 100%);
  color: #ffffff !important;
  box-shadow: var(--gp-shadow-glow);
}
.gp-btn-primary:hover {
  filter: brightness(1.1);
  transform: scale(1.02);
}

.gp-btn-download {
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399 !important;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.gp-btn-download:hover {
  background-color: var(--gp-emerald);
  color: #ffffff !important;
}

.gp-btn-secondary {
  background-color: var(--gp-surface-subtle);
  color: var(--gp-text-main) !important;
  border: 1px solid var(--gp-border);
}
.gp-btn-secondary:hover {
  background-color: var(--gp-surface-hover);
  border-color: var(--gp-border-strong);
}

.gp-btn-icon {
  width: 38px !important;
  height: 38px !important;
  padding: 0 !important;
  border-radius: var(--gp-radius-md) !important;
  flex-shrink: 0;
}

/* 7. Ô TÌM KIẾM SEARCH BAR */
.gp-search-wrap {
  position: relative;
  width: 100%;
}
.gp-search-input {
  background-color: var(--gp-surface-subtle);
  border: 1px solid var(--gp-border);
  color: var(--gp-text-main);
  border-radius: var(--gp-radius-md);
  padding: 12px 18px;
  width: 100%;
  font-size: 14px;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.gp-search-input:focus {
  border-color: var(--gp-primary);
  box-shadow: 0 0 0 3px rgba(250, 45, 72, 0.2);
}
.gp-search-input::placeholder {
  color: var(--gp-text-subtle);
}

/* 8. BADGES & NHÃN ĐỊNH DẠNG TAB */
.gp-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.gp-badge-pro {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.gp-badge-gp5 {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}
.gp-badge-gpx {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

/* 9. BẢNG DANH SÁCH BÀI HÁT (TRACKLIST TABLE) */
.gp-table-wrap {
  width: 100%;
  overflow-x: auto;
}
.gp-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 6px;
}
.gp-table th {
  padding: 10px 14px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gp-text-subtle);
  border-bottom: 1px solid var(--gp-border);
}
.gp-table td {
  padding: 12px 14px;
  font-size: 14px;
  background-color: var(--gp-surface);
  border-top: 1px solid var(--gp-border);
  border-bottom: 1px solid var(--gp-border);
  transition: background-color 0.15s ease;
}
.gp-table tr:hover td {
  background-color: var(--gp-surface-subtle);
}
.gp-table td:first-child {
  border-left: 1px solid var(--gp-border);
  border-top-left-radius: var(--gp-radius-md);
  border-bottom-left-radius: var(--gp-radius-md);
}
.gp-table td:last-child {
  border-right: 1px solid var(--gp-border);
  border-top-right-radius: var(--gp-radius-md);
  border-bottom-right-radius: var(--gp-radius-md);
}

/* 10. KHUNG HIỂN THỊ CHI TIẾT BÀI HÁT (SINGLE VIEW) */
.gp-single-hero {
  background-color: var(--gp-surface);
  border: 1px solid var(--gp-border);
  border-radius: var(--gp-radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}
.gp-chord-box {
  background-color: var(--gp-surface);
  border: 1px solid var(--gp-border);
  border-radius: var(--gp-radius-lg);
  padding: 24px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 15px;
  line-height: 1.8;
  white-space: pre-wrap;
  overflow-x: auto;
}
.gp-chord {
  color: var(--gp-amber);
  font-weight: 700;
}

/* 11. CHẾ ĐỘ SÂN KHẤU (STAGE MODE OLED COMPATIBILITY) */
[data-theme="stage"] body {
  background-color: #000000 !important;
  color: #ffffff !important;
}

[data-theme="stage"] .gp-header,
[data-theme="stage"] .site-header {
  background: rgba(10, 10, 10, 0.95) !important;
  border-bottom: 1px solid #222222 !important;
}

[data-theme="stage"] .gp-card,
[data-theme="stage"] .card,
[data-theme="stage"] .gp-chord-box,
[data-theme="stage"] .gp-single-hero,
[data-theme="stage"] .gp-chords-viewer-card {
  background-color: #0a0a0a !important;
  border-color: #222222 !important;
}

[data-theme="stage"] .gp-card:hover,
[data-theme="stage"] .card:hover {
  border-color: #333333 !important;
  background-color: #141414 !important;
}

[data-theme="stage"] .gp-card-title,
[data-theme="stage"] .ug-song-title {
  color: #ffffff !important;
}

[data-theme="stage"] .gp-card-meta,
[data-theme="stage"] .text-muted,
[data-theme="stage"] .gp-text-muted {
  color: #cbd5e1 !important;
}

[data-theme="stage"] .gp-chord {
  color: #fbbf24 !important;
  text-shadow: 0 0 1px rgba(251, 191, 36, 0.5);
}

[data-theme="stage"] .gp-lyric {
  color: #ffffff !important;
}

[data-theme="stage"] .gp-table td,
[data-theme="stage"] .ug-explore-table td {
  background-color: #0a0a0a !important;
  border-color: #222222 !important;
  color: #ffffff !important;
}

[data-theme="stage"] .gp-table tr:hover td,
[data-theme="stage"] .ug-explore-table tr:hover td {
  background-color: #141414 !important;
}

[data-theme="stage"] .gp-search-input,
[data-theme="stage"] .search-input {
  background-color: #141414 !important;
  border-color: #262626 !important;
  color: #ffffff !important;
}

[data-theme="stage"] .gp-btn-secondary,
[data-theme="stage"] .btn--ghost {
  background-color: #141414 !important;
  border-color: #262626 !important;
  color: #ffffff !important;
}

/* 11. GRID ALBUM & NGHỆ SĨ */
.album-grid {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  gap: 16px !important;
}

@media (min-width: 640px) {
  .album-grid {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

@media (min-width: 1024px) {
  .album-grid {
    grid-template-columns: repeat(6, 1fr) !important;
  }
}

.artist-grid {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  gap: 14px !important;
}

@media (min-width: 480px) {
  .artist-grid {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}

@media (min-width: 1024px) {
  .artist-grid {
    grid-template-columns: repeat(8, 1fr) !important;
    gap: 16px !important;
  }
}

/* ==========================================================================
   GLOBAL HEADER SEARCH BAR (Desktop & Mobile)
   ========================================================================== */
.header-search-wrapper {
  position: relative;
  flex: 1 1 auto;
  max-width: 480px;
}

@media (max-width: 767px) {
  .site-header {
    height: auto !important;
  }
  .site-header-inner {
    height: auto !important;
    min-height: 56px !important;
    padding-top: 10px !important;
    padding-bottom: 12px !important;
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    row-gap: 10px !important;
  }
  .site-branding {
    order: 1 !important;
  }
  .header-actions {
    order: 2 !important;
    margin-left: auto !important;
  }
  .header-search-wrapper {
    order: 3 !important;
    flex: 0 0 100% !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
  }
  .header-search-wrapper .search-input {
    width: 100% !important;
    height: 42px !important;
    font-size: 14px !important;
  }
}