:root {
    /* Updated Color Palette */
    --bg: #0d111c;
    --card: #16213e;
    --muted: #8c9aaf;
    --text: #e0e6f7;
    --accent: #60a5fa;
    --accent-light: #93c5fd;
    --accent-dark: #2563eb;
    --success: #34d399;
    --warning: #facc15;
    --danger: #ef4444;
    --ring: rgba(96, 165, 250, 0.4);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    --radius: 16px;
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
    color: var(--text);
    background: radial-gradient(1000px 700px at 85% -150px, #1a2747 10%, transparent 70%), var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
  }
  
  .wrap { max-width: 1100px; margin-inline: auto; padding: 32px 20px 80px; }
  
  header {
    display: grid;
    gap: 16px;
    margin-bottom: 24px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-dark));
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
  }
  .logo:hover {
      transform: scale(1.05);
  }
  h1 {
    font-size: clamp(28px, 3vw + 16px, 42px);
    margin: 0;
    letter-spacing: .5px;
    font-weight: 800;
  }
  .subtitle {
    color: var(--muted);
    margin-top: 2px;
    font-size: 1.05em;
  }
  
  .controls {
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr;
    margin-top: 16px;
  }
  @media (min-width: 760px) {
    .controls { grid-template-columns: 1.5fr 1fr 1fr; }
  }
  .control {
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }
  .control svg {
    color: var(--muted);
    flex-shrink: 0;
  }
  .control input,
  .control select {
    appearance: none;
    background: transparent;
    border: none;
    outline: none;
    width: 100%;
    color: var(--text);
    font-size: 15px;
  }
  .control input::placeholder {
      color: var(--muted);
      opacity: 0.7;
  }
  .control:focus-within {
    box-shadow: 0 0 0 4px var(--ring);
    border-color: var(--accent);
  }
  
  .grid {
    display: grid;
    gap: 18px;
    margin-top: 30px;
    grid-template-columns: 1fr;
  }
  @media (min-width: 560px) { .grid { grid-template-columns: 1fr 1fr; } }
  @media (min-width: 980px) { .grid { grid-template-columns: 1fr 1fr 1fr; } }
  
  .card {
    background: var(--card);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  .card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.45);
  }
  .card-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px 10px;
    background: rgba(255, 255, 255, 0.03);
  }
  .store-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex: 0 0 auto;
    background: #0f1933;
    border: 1px solid rgba(255, 255, 255, .2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1em;
    color: var(--accent-light);
  }
  .store-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; }
  .store-name { font-weight: 700; font-size: 1.1em; }
  .pill {
    margin-left: auto;
    font-size: 13px;
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 600;
    white-space: nowrap;
  }
  .pill:not(.expired) {
    background: rgba(52, 211, 153, .15);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, .4);
  }
  .pill.expired {
    background: rgba(239, 68, 68, .15);
    color: var(--danger);
    border-color: rgba(239, 68, 68, .4);
  }
  .pill[aria-label="Expiring soon"] {
    background: rgba(250, 204, 21, .15) !important;
    color: var(--warning) !important;
    border-color: rgba(250, 204, 21, .4) !important;
  }
  
  .card-body { padding: 12px 18px 18px; display: grid; gap: 12px; }
  .desc { color: var(--muted); font-size: 15px; line-height: 1.4; }
  
  .code-row {
    display: flex;
    gap: 12px;
    align-items: center;
  }
  .code {
    flex: 1;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-align: center;
    background: #0a1120;
    border: 1px dashed rgba(255, 255, 255, .25);
    padding: 12px 14px;
    border-radius: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .btn {
    cursor: pointer;
    user-select: none;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 12px;
    padding: 12px 16px;
    font-weight: 600;
    color: var(--text);
    background: linear-gradient(180deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .04));
    transition: transform .1s ease, filter .2s ease, box-shadow .2s ease, background 0.2s ease;
    white-space: nowrap;
  }
  .btn:hover {
    filter: brightness(1.1);
    background: linear-gradient(180deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .06));
  }
  .btn:active { transform: translateY(2px); }
  .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(1);
    transform: none;
    box-shadow: none;
  }
  
  .cta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-top: 8px;
    flex-wrap: wrap;
  }
  .cta a {
    text-decoration: none;
    color: var(--text);
    border: 1px solid var(--accent);
    border-radius: 12px;
    padding: 12px 16px;
    background: linear-gradient(180deg, var(--accent-light), var(--accent));
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    letter-spacing: .5px;
    transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 10px rgba(96, 165, 250, 0.3);
    flex-shrink: 0;
  }
  .cta a::after {
    content: '→';
    font-size: 1.2em;
    line-height: 1;
    margin-left: 4px;
  }
  .cta a:hover {
    background: linear-gradient(180deg, var(--accent), var(--accent-dark));
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(96, 165, 250, 0.4);
  }
  .cta a:active { transform: translateY(0); }
  
  .meta {
    display: flex;
    gap: 10px;
    align-items: center;
    color: var(--muted);
    font-size: 13px;
    flex-wrap: wrap;
  }
  .dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255, 255, 255, .35); }
  .small { font-size: 13px; color: var(--muted); }
  
  footer {
    margin-top: 40px;
    color: var(--muted);
    font-size: 14px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }
  
  .hide { display: none !important; }
  .empty {
    border: 1px dashed rgba(255, 255, 255, .25);
    border-radius: 14px;
    padding: 30px;
    text-align: center;
    color: var(--muted);
    background: rgba(255, 255, 255, .04);
    font-size: 1.1em;
    margin-top: 30px;
  }


  /* Loader Styles */
#loader {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: #0d111c;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid rgba(255, 255, 255, 0.2);
  border-top: 6px solid #60a5fa;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}