@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=JetBrains+Mono:wght@300;400;500&display=swap');

  :root {
    --bg:       #0a0a0a;
    --surface:  #121212;
    --panel:    #1a1a1a;
    --border:   #2d2d2d;
    --accent:   #d4a574;
    --accent2:  #e6c88a;
    --warn:     #ff6b35;
    --text:     #e8e8e8;
    --muted:    #888888;
    --font-head: 'Rajdhani', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-head);
    min-height: 100vh;
    overflow: hidden;
  }

  /* SCANLINES overlay */
  body::before {
    content: '';
    position: fixed; inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(212,165,116,.012) 2px,
      rgba(212,165,116,.012) 4px
    );
    pointer-events: none;
    z-index: 9999;
  }

  /* ────────── LOGIN ────────── */
  #login-screen {
    position: fixed; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg);
    z-index: 100;
    transition: opacity .5s, transform .5s;
  }
  #login-screen.hidden { opacity: 0; transform: scale(1.04); pointer-events: none; }

  .login-box {
    width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: 2px solid var(--accent);
    padding: 48px 40px 40px;
    position: relative;
    box-shadow: 0 0 30px rgba(212, 165, 116, 0.15);
  }
  .login-box::before {
    content: '';
    position: absolute; top: -1px; left: 40px; right: 40px; height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: .8;
  }

  .login-logo {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 28px;
    letter-spacing: 4px;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 4px;
  }
  .login-sub {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 36px;
  }

  .field { margin-bottom: 18px; }
  .field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 2px;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 6px;
  }
  .field input {
    width: 100%;
    background: var(--panel);
    border: 1px solid var(--border);
    border-bottom-color: var(--muted);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 10px 12px;
    outline: none;
    transition: border-color .2s;
  }
  .field input:focus { border-color: var(--accent); }
  .field input::placeholder { color: var(--muted); }

  .login-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
    border: 1px solid var(--accent);
    color: #000;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 3px;
    text-transform: uppercase;
    padding: 13px;
    cursor: pointer;
    margin-top: 8px;
    transition: all .3s;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(212, 165, 116, 0.25);
  }
  .login-btn:hover {
    background: linear-gradient(135deg, var(--accent2) 0%, var(--accent) 100%);
    box-shadow: 0 6px 25px rgba(212, 165, 116, 0.4);
    transform: translateY(-2px);
  }
  .login-btn::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,.2) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform .5s;
  }
  .login-btn:hover::after { transform: translateX(100%); }

  .login-error {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--warn);
    margin-top: 12px;
    display: none;
  }
  .login-hint {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    line-height: 1.6;
  }

  /* ────────── TOPBAR ────────── */
  #dashboard { display: none; flex-direction: column; height: 100vh; }
  #dashboard.active { display: flex; }

  .topbar {
    height: 52px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5), 0 0 20px rgba(212, 165, 116, 0.08);
  }
  .topbar-logo {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 3px;
    color: var(--accent);
    text-transform: uppercase;
  }
  .topbar-logo span { color: var(--muted); font-weight: 400; font-size: 12px; margin-left: 12px; letter-spacing: 1px; }

  .topbar-status {
    display: flex; align-items: center; gap: 20px;
    font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  }
  .status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent);
    animation: pulse 2s infinite;
  }
  @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

  .topbar-right { display: flex; align-items: center; gap: 16px; }
  .user-badge {
    font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  }
  .user-badge strong { color: var(--accent); }
  .logout-btn {
    background: transparent; border: 1px solid var(--border);
    color: var(--muted); font-family: var(--font-mono); font-size: 10px;
    letter-spacing: 1px; padding: 5px 10px; cursor: pointer;
    text-transform: uppercase; transition: all .2s;
  }
  .logout-btn:hover { border-color: var(--warn); color: var(--warn); }

  /* ────────── TOOLBAR ────────── */
  .toolbar {
    height: 44px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
    padding: 0 16px;
    flex-shrink: 0;
  }
  .toolbar-label {
    font-family: var(--font-mono); font-size: 10px;
    color: var(--muted); letter-spacing: 2px; text-transform: uppercase;
  }
  .grid-btn {
    background: transparent; border: 1px solid var(--border);
    color: var(--muted); font-family: var(--font-mono); font-size: 10px;
    padding: 4px 10px; cursor: pointer; transition: all .3s;
    letter-spacing: 1px;
  }
  .grid-btn:hover { 
    border-color: var(--accent); 
    color: var(--accent); 
    background: rgba(212, 165, 116, .08);
    box-shadow: 0 0 8px rgba(212, 165, 116, .15);
  }
  .grid-btn.active { 
    border-color: var(--accent); 
    color: var(--accent); 
    background: rgba(212, 165, 116, .12);
    box-shadow: 0 0 12px rgba(212, 165, 116, .25);
  }

  .search-box {
    background: var(--surface); border: 1px solid var(--border);
    color: var(--text); font-family: var(--font-mono); font-size: 11px;
    padding: 4px 10px; outline: none; width: 200px;
    transition: all .3s;
  }
  .search-box:focus { 
    border-color: var(--accent);
    box-shadow: 0 0 12px rgba(212, 165, 116, .2);
    background: rgba(212, 165, 116, .02);
  }
  .search-box::placeholder { color: var(--muted); }

  .vehicle-count {
    margin-left: auto;
    font-family: var(--font-mono); font-size: 10px; color: var(--muted);
  }
  .vehicle-count strong { color: var(--accent2); }

  /* ────────── MOSAIC GRID ────────── */
  .mosaic-wrap {
    flex: 1; overflow: auto;
    padding: 12px;
    background: var(--bg);
  }
  .mosaic-grid {
    display: grid;
    gap: 6px;
    grid-template-columns: repeat(5, 1fr);
    width: 100%;
    min-height: 100%;
  }
  .mosaic-grid.g1x1 { grid-template-columns: 1fr; }
  .mosaic-grid.g2x2 { grid-template-columns: repeat(2, 1fr); }
  .mosaic-grid.g3x3 { grid-template-columns: repeat(3, 1fr); }
  .mosaic-grid.g4x4 { grid-template-columns: repeat(4, 1fr); }
  .mosaic-grid.g5x5 { grid-template-columns: repeat(5, 1fr); }

  /* ────────── VEHICLE TILE ────────── */
  .tile {
    background: var(--surface);
    border: 1px solid var(--border);
    aspect-ratio: 16/9;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all .25s;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  }
  .tile:hover { 
    border-color: var(--accent); 
    transform: scale(1.012);
    z-index: 2;
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.2);
  }
  .tile.fullscreen-tile { grid-column: 1/-1; grid-row: 1; aspect-ratio: 16/6; }

  .tile video {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    background: #000;
  }

  .tile-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,.5) 0%, transparent 30%, transparent 70%, rgba(0,0,0,.7) 100%);
    pointer-events: none;
  }
  .tile-header {
    position: absolute; top: 0; left: 0; right: 0;
    padding: 6px 8px;
    display: flex; align-items: center; justify-content: space-between;
  }
  .tile-id {
    font-family: var(--font-mono); font-size: 9px; font-weight: 500;
    color: var(--accent); letter-spacing: 1px;
    text-shadow: 0 0 8px rgba(212, 165, 116, .6);
  }
  .tile-live {
    background: var(--warn); color: #fff;
    font-family: var(--font-mono); font-size: 8px; font-weight: 500;
    letter-spacing: 1px; padding: 1px 5px;
  }
  .tile-footer {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 5px 8px;
    display: flex; align-items: flex-end; justify-content: space-between;
  }
  .tile-name {
    font-family: var(--font-head); font-size: 11px; font-weight: 600;
    color: #fff; letter-spacing: 1px;
  }
  .tile-status {
    font-family: var(--font-mono); font-size: 8px; color: var(--accent2);
  }

  /* estados sem vídeo */
  .tile-placeholder {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 8px; width: 100%; height: 100%;
    background: var(--panel);
  }
  .tile-placeholder .ph-icon {
    width: 32px; height: 32px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
  }
  .tile-placeholder .ph-icon svg { width: 16px; height: 16px; fill: var(--muted); }
  .tile-placeholder span {
    font-family: var(--font-mono); font-size: 9px;
    color: var(--muted); letter-spacing: 1px;
  }

  .tile-loading {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(8,12,16,.85);
    font-family: var(--font-mono); font-size: 9px; color: var(--muted); letter-spacing: 1px;
    flex-direction: column; gap: 8px;
  }
  .spinner {
    width: 20px; height: 20px;
    border: 1.5px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .8s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* ────────── FULLSCREEN VIDEO MODAL ────────── */
  #modal {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 500;
    display: none; align-items: center; justify-content: center;
    flex-direction: column;
    gap: 12px;
  }
  #modal.open { display: flex; }
  #modal-video {
    width: min(94vw, 1280px);
    aspect-ratio: 16/9;
    background: #000;
  }
  .modal-info {
    font-family: var(--font-mono); font-size: 11px; color: var(--muted);
    display: flex; gap: 24px;
  }
  .modal-info strong { color: var(--accent); }
  .modal-close {
    position: absolute; top: 20px; right: 24px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
    border: 1px solid var(--accent);
    color: #000; font-family: var(--font-mono); font-size: 11px;
    padding: 6px 14px; cursor: pointer; letter-spacing: 2px;
    transition: all .3s;
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.2);
  }
  .modal-close:hover { 
    border-color: var(--accent2);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.35);
    transform: translateY(-2px);
  }

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