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

:root {
  /* Default: Arcade Dark */
  --bg: #0a0a0f;
  --surface: #111118;
  --surface2: #1a1a24;
  --border: #2a2a3a;
  --accent: #f5c518;
  --accent2: #e03030;
  --accent3: #00d4ff;
  --text: #e8e8f0;
  --text-dim: #7a7a95;
  --success: #00e676;
}

/* Arcade Light (white-ish) */
body.theme-whiteout {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface2: #e7ebf5;
  --border: #c6d0e4;
  --accent: #ff6b00;
  --accent2: #e03060;
  --accent3: #0077ff;
  --text: #111318;
  --text-dim: #66708a;
  --success: #1bbf5f;
}

/* Neon Grid theme */
body.theme-neon {
  --bg: #020014;
  --surface: #090021;
  --surface2: #130033;
  --border: #3d1d7a;
  --accent: #ff00e5;
  --accent2: #00f2ff;
  --accent3: #ffea00;
  --text: #f7f5ff;
  --text-dim: #9b8fd1;
  --success: #4dff91;
}

/* Training Room theme */
body.theme-training {
  --bg: #050b10;
  --surface: #061721;
  --surface2: #0c2433;
  --border: #1e3b4f;
  --accent: #46e8ff;
  --accent2: #ff6b6b;
  --accent3: #ffe66d;
  --text: #e1f5ff;
  --text-dim: #7fa1b8;
  --success: #54ffbd;
}

/* Sunset City */
body.theme-sunset {
  --bg: #160712;
  --surface: #24101f;
  --surface2: #32182b;
  --border: #4b233d;
  --accent: #ff914d;
  --accent2: #ff3b5c;
  --accent3: #ffd447;
  --text: #ffecef;
  --text-dim: #f1a9c3;
  --success: #7fffa5;
}

/* Blood Moon */
body.theme-bloodmoon {
  --bg: #050108;
  --surface: #13020e;
  --surface2: #220416;
  --border: #4a0a28;
  --accent: #ff2244;
  --accent2: #ff7b00;
  --accent3: #ffe066;
  --text: #ffe6ea;
  --text-dim: #ff9fb4;
  --success: #4cff9a;
}

/* Forest Temple */
body.theme-forest {
  --bg: #030b06;
  --surface: #06140b;
  --surface2: #0b2314;
  --border: #1b3b26;
  --accent: #56e38f;
  --accent2: #ffd166;
  --accent3: #52b788;
  --text: #e4ffe9;
  --text-dim: #8fbfa0;
  --success: #7cffc4;
}

/* Cyber Lab */
body.theme-cyber {
  --bg: #010811;
  --surface: #04101e;
  --surface2: #071b2f;
  --border: #123453;
  --accent: #00f5d4;
  --accent2: #ff4d6d;
  --accent3: #f9c74f;
  --text: #e6f7ff;
  --text-dim: #8fb3cc;
  --success: #90f6d7;
}

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Rajdhani', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
  }

  /* Scanline overlay */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.08) 2px,
      rgba(0,0,0,0.08) 4px
    );
    pointer-events: none;
    z-index: 9999;
  }

  /* Grid background */
  body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(245,197,24,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(245,197,24,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
  }

  /* ── HEADER ── */
  header {
    position: relative;
    z-index: 10;
    padding: 28px 40px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(180deg, rgba(245,197,24,0.04) 0%, transparent 100%);
  }

  .logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
  }

  .logo-sub {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 2px;
  }

  .logo-main {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 52px;
    color: var(--text);
    letter-spacing: 4px;
    text-shadow: 0 0 40px rgba(245,197,24,0.3), 3px 3px 0 var(--accent2);
    text-decoration: none;
  }

  .header-right {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .header-theme-select {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 8px;
    border-radius: 2px;
    cursor: pointer;
    outline: none;
  }

  .header-btn {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 6px 10px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.15s;
  }

  .header-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .combo-count {
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    color: var(--text-dim);
    text-align: right;
  }

  .combo-count span {
    display: block;
    font-size: 28px;
    color: var(--accent);
    font-family: 'Bebas Neue', sans-serif;
    letter-spacing: 2px;
  }

  /* ── MAIN LAYOUT ── */
  .layout {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 0;
    min-height: calc(100vh - 100px);
  }

  /* ── SIDEBAR (Add Combo) ── */
  .sidebar {
    border-right: 1px solid var(--border);
    padding: 28px;
    background: var(--surface);
    position: sticky;
    top: 0;
    height: calc(100vh - 100px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .sidebar::-webkit-scrollbar { width: 4px; }
  .sidebar::-webkit-scrollbar-track { background: var(--bg); }
  .sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

  .section-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--accent);
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    margin-bottom: 4px;
  }

  .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .input-with-dropdown {
    position: relative;
    width: 100%;
  }

  label {
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
    font-weight: 600;
  }

  input, textarea, select {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: 'Rajdhani', sans-serif;
    font-size: 15px;
    font-weight: 600;
    padding: 10px 14px;
    border-radius: 2px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
  }

  input:focus, textarea:focus, select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(245,197,24,0.1);
  }

  textarea {
    resize: vertical;
    min-height: 80px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
  }

  select option { background: var(--surface2); }

  /* Tag input area */
  .tag-input-wrap {
    display: flex;
    gap: 8px;
  }

  .tag-input-wrap .input-with-dropdown { flex: 1; }

  .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
  }

  .tag {
    background: rgba(245,197,24,0.12);
    border: 1px solid rgba(245,197,24,0.3);
    color: var(--accent);
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 2px;
    cursor: pointer;
    transition: background 0.15s;
    user-select: none;
  }

  .tag:hover { background: rgba(224,48,48,0.2); border-color: var(--accent2); color: var(--accent2); }

  /* Autocomplete dropdown */
  .ac-list {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-top: 2px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 2px;
    max-height: 180px;
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(0,0,0,0.6);
    z-index: 40;
    display: none;
  }

  .ac-list.show {
    display: block;
  }

  .ac-item {
    padding: 6px 10px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--text-dim);
    cursor: pointer;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
  }

  .ac-item:hover {
    background: rgba(245,197,24,0.12);
    color: var(--accent);
  }

  /* Difficulty */
  .diff-group {
    display: flex;
    gap: 8px;
  }

  .diff-btn {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--surface2);
    color: var(--text-dim);
    font-family: 'Rajdhani', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.15s;
  }

  .diff-btn:hover { border-color: var(--text-dim); color: var(--text); }
  .diff-btn.active[data-diff="easy"] { border-color: var(--success); color: var(--success); background: rgba(0,230,118,0.08); }
  .diff-btn.active[data-diff="medium"] { border-color: var(--accent); color: var(--accent); background: rgba(245,197,24,0.08); }
  .diff-btn.active[data-diff="hard"] { border-color: var(--accent2); color: var(--accent2); background: rgba(224,48,48,0.08); }

  /* Submit button */
  .btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 3px;
    padding: 12px 20px;
    cursor: pointer;
    width: 100%;
    border-radius: 2px;
    transition: all 0.15s;
    margin-top: 4px;
  }

  .btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 24px rgba(245,197,24,0.4);
    transform: translateY(-1px);
  }

  .btn-primary:active { transform: translateY(0); }

  /* ── MAIN CONTENT ── */
  .main {
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  /* Filters bar */
  .filters {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
  }

  .search-wrap {
    position: relative;
    flex: 1;
    min-width: 200px;
  }

  .search-wrap input {
    padding-left: 36px;
  }

  .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    font-size: 14px;
  }

  .filter-select {
    width: auto;
    min-width: 140px;
  }

  .fav-filter-btn {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 8px 10px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .fav-filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .fav-filter-btn.active {
    border-color: var(--accent2);
    color: var(--accent2);
    background: rgba(224,48,48,0.12);
  }

  .view-toggle {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow: hidden;
  }

  .view-btn {
    background: var(--surface2);
    border: none;
    color: var(--text-dim);
    padding: 10px 14px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.15s;
  }

  .view-btn.active { background: var(--accent); color: #000; }

  /* ── COMBO GRID ── */
  .combo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
  }

  .combo-grid.list-view {
    grid-template-columns: 1fr;
  }

  /* ── COMBO CARD ── */
  .combo-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 18px;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    animation: cardIn 0.3s ease both;
  }

  @keyframes cardIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .combo-card-flyout {
    position: fixed;
    top: 0;
    left: 0;
    margin: 0;
    z-index: 10500;
    pointer-events: none;
    box-shadow: 0 18px 60px rgba(0,0,0,0.8);
  }

  .combo-card--just-added {
    box-shadow: 0 0 0 1px rgba(245,197,24,0.6), 0 0 24px rgba(245,197,24,0.4);
    border-color: rgba(245,197,24,0.7);
  }

  .combo-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 3px;
    height: 100%;
  }

  .combo-card[data-diff="easy"]::before { background: var(--success); }
  .combo-card[data-diff="medium"]::before { background: var(--accent); }
  .combo-card[data-diff="hard"]::before { background: var(--accent2); }

  .combo-card:hover {
    border-color: rgba(245,197,24,0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  }

  .card-footer {
    margin-top: 14px;
  }

  .card-detail-btn {
    width: 100%;
    font-size: 16px;
    margin-top: 0;
  }

  .card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
    gap: 12px;
  }

  .card-game {
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--accent3);
    text-transform: uppercase;
    margin-bottom: 8px;
  }

  .card-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 2px;
    color: var(--text);
    line-height: 1.1;
  }

  .card-title-wrap { flex: 1; }

  .card-actions {
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.15s;
  }

  .combo-card:hover .card-actions { opacity: 1; }

  .icon-btn {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text-dim);
    width: 30px;
    height: 30px;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: all 0.15s;
    flex-shrink: 0;
  }

  .icon-btn:hover { border-color: var(--accent2); color: var(--accent2); }
  .icon-btn.fav-btn.faved { color: var(--accent); border-color: var(--accent); }
  .icon-btn.copy-btn:hover { border-color: var(--accent3); color: var(--accent3); }

  /* Combo notation display */
  .combo-notation {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 12px 14px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    line-height: 1.7;
    margin: 10px 0;
    word-break: break-all;
    position: relative;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  }

  .combo-notation::after {
    content: 'CLICK TO ZOOM';
    position: absolute;
    right: 10px;
    bottom: 8px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(245,197,24,0.7);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.25s ease-out, transform 0.25s ease-out;
    pointer-events: none;
  }

  .combo-card:hover .combo-notation {
    border-color: rgba(245,197,24,0.5);
    box-shadow: 0 0 0 1px rgba(245,197,24,0.2), 0 0 24px rgba(245,197,24,0.25);
    transform: translateY(-1px);
  }

  .combo-card:hover .combo-notation::after {
    opacity: 0.7;
    transform: translateY(0);
  }

  .card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
  }

  .diff-badge {
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    letter-spacing: 2px;
    padding: 3px 8px;
    border-radius: 2px;
    text-transform: uppercase;
    font-weight: 700;
  }

  .diff-badge.easy { background: rgba(0,230,118,0.1); color: var(--success); border: 1px solid rgba(0,230,118,0.3); }
  .diff-badge.medium { background: rgba(245,197,24,0.1); color: var(--accent); border: 1px solid rgba(245,197,24,0.3); }
  .diff-badge.hard { background: rgba(224,48,48,0.1); color: var(--accent2); border: 1px solid rgba(224,48,48,0.3); }

  .card-tags { display: flex; flex-wrap: wrap; gap: 5px; }

  .card-tag {
    font-family: 'Share Tech Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 2px;
  }

  .card-notes {
    font-size: 13px;
    color: var(--text-dim);
    line-height: 1.5;
    margin-top: 8px;
    border-top: 1px solid var(--border);
    padding-top: 8px;
  }

  .yt-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--accent2);
    text-decoration: none;
    border: 1px solid rgba(224,48,48,0.3);
    padding: 4px 10px;
    border-radius: 2px;
    margin-top: 8px;
    transition: all 0.15s;
  }

  .yt-link:hover { background: rgba(224,48,48,0.1); border-color: var(--accent2); }

  /* ── COMBO DETAIL MODAL ── */
  .combo-detail-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
  }

  .combo-detail {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2px;
    max-width: 980px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    padding: 22px 22px 18px;
    box-shadow: 0 18px 60px rgba(0,0,0,0.7);
  }

  .combo-detail-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 1;
  }

  .combo-detail-header {
    margin-bottom: 16px;
  }

  .combo-detail-game-char {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent3);
    margin-bottom: 4px;
  }

  .combo-detail-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 3px;
  }

  .combo-detail-body {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
    gap: 20px;
    flex: 1;
    overflow: auto;
  }

  .combo-detail-main {
    overflow-y: auto;
    max-height: 60vh;
    padding-right: 4px;
  }

  .combo-detail-notation {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 12px 14px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    line-height: 1.7;
    min-height: 120px;
    resize: vertical;
  }

  .combo-detail-notes {
    margin-top: 6px;
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.5;
    min-height: 80px;
    resize: vertical;
  }

  .combo-detail-meta {
    border-left: 1px solid var(--border);
    padding-left: 14px;
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .combo-detail-meta-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .combo-detail-diff .diff-badge {
    margin-top: 4px;
  }

  .combo-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .combo-detail-yt {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    color: var(--accent2);
    text-decoration: none;
    border: 1px solid rgba(224,48,48,0.3);
    padding: 4px 10px;
    border-radius: 2px;
    margin-top: 6px;
    transition: all 0.15s;
  }

  .combo-detail-yt:hover {
    background: rgba(224,48,48,0.1);
    border-color: var(--accent2);
  }

  .combo-detail-practice-placeholder {
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 10px;
  }

  @media (max-width: 900px) {
    .combo-detail-body {
      grid-template-columns: 1fr;
    }

    .combo-detail-meta {
      border-left: none;
      border-top: 1px solid var(--border);
      padding-left: 0;
      padding-top: 12px;
      margin-top: 8px;
    }
  }

  /* ── PRACTICE MODE SCREEN ── */
  .practice-overlay {
    display: none;
    padding: 28px 40px 40px;
  }

  /* When in practice mode, hide the main layout and show the practice view */
  body.practice-mode .layout {
    display: none;
  }

  body.practice-mode .practice-overlay {
    display: block;
  }

  .practice-view {
    background: transparent;
    border: none;
    border-radius: 0;
    max-width: none;
    margin: 0;
    width: 100%;
    min-height: calc(100vh - 120px);
    display: flex;
    flex-direction: column;
    padding: 0;
    box-shadow: none;
  }

  .practice-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
  }

  .practice-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .practice-game-char {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent3);
  }

  .practice-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 3px;
  }

  .practice-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .practice-combo {
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
  }

  .practice-notation {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 12px 14px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 16px;
    color: var(--accent);
    line-height: 1.7;
    white-space: pre-wrap;
  }

  .practice-notes {
    margin-top: 8px;
    font-size: 16px;
    color: var(--text-dim);
    line-height: 1.5;
  }

  .practice-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    margin: 0;
  }

  .practice-counter {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .practice-count-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
  }

  .practice-count-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 46px;
    letter-spacing: 3px;
    color: var(--accent);
  }

  .practice-top-kpis {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 4px;
  }

  .practice-kpi-row {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    gap: 8px;
  }

  .practice-kpi-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
  }

  .practice-kpi-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 2px;
    color: var(--accent3);
  }

  .practice-history-block {
    margin-top: 8px;
  }

  .practice-history {
    margin-top: 4px;
    display: flex;
    gap: 4px;
    justify-content: flex-start;
  }

  .attempt-dot {
    width: 20px;
    height: 20px;
    border-radius: 999px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-family: 'Share Tech Mono', monospace;
    color: var(--text-dim);
    opacity: 0.5;
    background: rgba(0, 0, 0, 0.25);
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out,
      opacity 0.15s ease-out, border-color 0.15s ease-out, background 0.15s ease-out;
  }

  .attempt-dot--empty {
    opacity: 0.25;
  }

  .attempt-dot--success {
    border-color: var(--success);
    color: var(--success);
    background: rgba(0, 230, 118, 0.12);
  }

  .attempt-dot--fail {
    border-color: var(--accent2);
    color: var(--accent2);
    background: rgba(224, 48, 48, 0.12);
  }

  .attempt-dot--recent {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 0 12px rgba(245, 197, 24, 0.35);
    opacity: 0.9;
  }

  .practice-actions-row {
    margin-top: 10px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    align-items: stretch;
  }

  .practice-action-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
    text-align: center;
  }

  .practice-action-col .btn-primary {
    font-size: 18px;
    padding: 10px 8px;
    margin-top: 0;
  }

  .practice-action-col--success .btn-primary {
    background: var(--success);
  }

  .practice-action-col--fail .btn-primary {
    background: var(--accent2);
    color: #fff;
  }

  .practice-action-col--streak .practice-kpi-value {
    font-size: 28px;
    color: var(--accent);
  }

  @media (max-width: 900px) {
    .practice-stats {
      max-width: none;
    }
  }

  /* ── NOTATION ZOOM OVERLAY ── */
  .notation-zoom-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.78);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 11000;
    padding: 20px;
    transition: opacity 0.25s ease-out;
  }

  .notation-zoom-box {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 2px;
    max-width: 1100px;
    width: 100%;
    max-height: 85vh;
    padding: 24px 26px 20px;
    box-shadow: 0 18px 60px rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
  }

  .notation-zoom-content {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 18px 20px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 22px;
    color: var(--accent);
    line-height: 1.8;
    white-space: pre-wrap;
    overflow-y: auto;
    max-height: 60vh;
  }

  .notation-zoom-close {
    position: absolute;
    top: 12px;
    right: 12px;
  }

  .notation-flyout {
    z-index: 12000;
    background: var(--bg);
    border-radius: 2px;
    box-shadow: 0 18px 60px rgba(0,0,0,0.8);
    overflow: hidden;
  }

  /* Empty state */
  .empty-state {
    grid-column: 1/-1;
    text-align: center;
    padding: 80px 40px;
    color: var(--text-dim);
  }

  .empty-state .empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.3;
  }

  .empty-state h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 3px;
    color: var(--text-dim);
    margin-bottom: 8px;
  }

  .empty-state p {
    font-size: 14px;
    color: var(--text-dim);
    opacity: 0.7;
  }

  /* Toast */
  .toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--surface2);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: 'Share Tech Mono', monospace;
    font-size: 12px;
    letter-spacing: 2px;
    padding: 12px 20px;
    border-radius: 2px;
    z-index: 9999;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.25s;
    pointer-events: none;
  }

  .toast.show { transform: translateY(0); opacity: 1; }

  /* Scrollbar main */
  .main::-webkit-scrollbar { width: 4px; }

  /* Responsive */
  @media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { position: static; height: auto; }
    header { padding: 20px; }
    .logo-main { font-size: 38px; }
    .main { padding: 20px; }
    .combo-grid { grid-template-columns: 1fr; }
  }