:root {
      --bg: #04050d;
      --bg2: #080c1a;
      --surface: rgba(255,255,255,0.04);
      --border: rgba(255,255,255,0.07);
      --accent: #4fc3f7;
      --accent2: #7c83fd;
      --gold: #ffd166;
      --red: #ef476f;
      --green: #06d6a0;
      --text: #e8eaf6;
      --muted: #6272a4;
      --font-display: 'Syne', sans-serif;
      --font-mono: 'Space Mono', monospace;
    }

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

    html { scroll-behavior: smooth; }

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

    /* ── Stars background ── */
    #stars-canvas {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: 0.5;
    }

    #app {
      position: relative;
      z-index: 1;
      min-height: 100vh;
    }

    /* ── Header ── */
    .header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.5rem 2.5rem;
      border-bottom: 1px solid var(--border);
      backdrop-filter: blur(12px);
      background: rgba(4,5,13,0.6);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.3rem;
      letter-spacing: -0.02em;
    }

    .logo-icon {
      font-size: 1.6rem;
      filter: drop-shadow(0 0 8px var(--accent));
    }

    .logo-name { color: var(--text); }
    .logo-dot { color: var(--accent); }

    .header-right {
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }

    .clock {
      font-size: 0.78rem;
      color: var(--muted);
      letter-spacing: 0.08em;
    }

    .clock span { color: var(--accent); }

    /* ── Main layout ── */
    .main {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2.5rem 2rem 4rem;
    }

    /* ── Hero ── */
    .hero {
      text-align: center;
      padding: 3rem 0 2.5rem;
      position: relative;
    }

    .hero-label {
      font-size: 0.7rem;
      letter-spacing: 0.25em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 1rem;
      opacity: 0.8;
    }

    .hero h1 {
      font-family: var(--font-display);
      font-size: clamp(2.2rem, 5vw, 3.8rem);
      font-weight: 800;
      line-height: 1.05;
      letter-spacing: -0.03em;
      margin-bottom: 1rem;
      background: linear-gradient(135deg, var(--text) 0%, var(--accent) 60%, var(--accent2) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero p {
      color: var(--muted);
      font-size: 0.88rem;
      max-width: 460px;
      margin: 0 auto 2rem;
      line-height: 1.7;
    }

    /* ── Location bar ── */
    .location-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
    }

    .location-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 100px;
      padding: 0.5rem 1.1rem;
      font-size: 0.78rem;
      color: var(--muted);
      transition: all 0.3s;
    }

    .location-badge.active {
      border-color: var(--green);
      color: var(--green);
    }

    .location-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--green);
      animation: pulse-dot 2s infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.6); }
    }

    /* ── Scan button ── */
    .btn-scan {
      display: inline-flex;
      align-items: center;
      gap: 0.65rem;
      background: linear-gradient(135deg, var(--accent2), var(--accent));
      border: none;
      border-radius: 12px;
      padding: 0.9rem 2rem;
      font-family: var(--font-mono);
      font-size: 0.85rem;
      font-weight: 700;
      color: #04050d;
      cursor: pointer;
      transition: all 0.25s;
      letter-spacing: 0.02em;
      position: relative;
      overflow: hidden;
    }

    .btn-scan::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
      opacity: 0;
      transition: opacity 0.2s;
    }

    .btn-scan:hover::before { opacity: 1; }
    .btn-scan:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(79,195,247,0.3); }
    .btn-scan:active { transform: translateY(0); }
    .btn-scan:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

    .btn-icon { font-size: 1rem; }

    /* ── Loading state ── */
    .loading-block {
      text-align: center;
      padding: 4rem 0;
    }

    .radar {
      width: 80px; height: 80px;
      border-radius: 50%;
      border: 2px solid var(--accent);
      margin: 0 auto 1.5rem;
      position: relative;
      animation: radar-spin 2s linear infinite;
    }

    .radar::before {
      content: '';
      position: absolute;
      inset: 6px;
      border-radius: 50%;
      border: 1px solid rgba(79,195,247,0.3);
    }

    .radar::after {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 50%;
      height: 2px;
      background: linear-gradient(90deg, var(--accent), transparent);
      transform-origin: left center;
      animation: radar-spin 2s linear infinite;
    }

    @keyframes radar-spin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    .loading-text {
      font-size: 0.8rem;
      color: var(--muted);
      letter-spacing: 0.15em;
      text-transform: uppercase;
    }

    /* ── Error state ── */
    .error-block {
      text-align: center;
      padding: 3rem;
      background: rgba(239,71,111,0.06);
      border: 1px solid rgba(239,71,111,0.2);
      border-radius: 20px;
      max-width: 500px;
      margin: 0 auto;
    }

    .error-icon { font-size: 2.5rem; margin-bottom: 1rem; }
    .error-title { font-family: var(--font-display); font-size: 1.1rem; color: var(--red); margin-bottom: 0.5rem; }
    .error-msg { font-size: 0.8rem; color: var(--muted); line-height: 1.6; }

    /* ── Results grid ── */
    .results-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid var(--border);
    }

    .results-title {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text);
    }

    .results-subtitle {
      font-size: 0.72rem;
      color: var(--muted);
      letter-spacing: 0.08em;
    }

    .results-meta {
      font-size: 0.72rem;
      color: var(--muted);
    }

    .results-meta span { color: var(--accent); }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 1.2rem;
    }

    /* ── Planet card ── */
    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 1.5rem;
      transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
      position: relative;
      overflow: hidden;
      cursor: pointer;
    }

    .card::before {
      content: '';
      position: absolute;
      top: -40%;
      right: -20%;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: radial-gradient(circle, var(--card-glow, rgba(79,195,247,0.08)) 0%, transparent 70%);
      pointer-events: none;
      transition: all 0.5s;
    }

    .card:hover {
      border-color: rgba(255,255,255,0.14);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.4);
    }

    .card:hover::before {
      transform: scale(1.4);
      opacity: 1.5;
    }

    .card.rank-1 { border-color: rgba(255,209,102,0.25); --card-glow: rgba(255,209,102,0.1); }
    .card.rank-2 { border-color: rgba(79,195,247,0.2); --card-glow: rgba(79,195,247,0.08); }
    .card.rank-3 { border-color: rgba(124,131,253,0.2); --card-glow: rgba(124,131,253,0.08); }

    .card-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      margin-bottom: 1.2rem;
    }

    .card-left { display: flex; align-items: center; gap: 0.9rem; }

    .planet-emoji {
      font-size: 2.2rem;
      filter: drop-shadow(0 0 10px var(--card-glow, rgba(79,195,247,0.3)));
      line-height: 1;
    }

    .planet-info {}

    .planet-name {
      font-family: var(--font-display);
      font-size: 1.1rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 0.2rem;
    }

    .planet-type {
      font-size: 0.68rem;
      color: var(--muted);
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }

    .rank-badge {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 28px; height: 28px;
      border-radius: 8px;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0;
    }

    .rank-badge.r1 { background: rgba(255,209,102,0.15); color: var(--gold); border: 1px solid rgba(255,209,102,0.3); }
    .rank-badge.r2 { background: rgba(79,195,247,0.1); color: var(--accent); border: 1px solid rgba(79,195,247,0.2); }
    .rank-badge.r3 { background: rgba(124,131,253,0.1); color: var(--accent2); border: 1px solid rgba(124,131,253,0.2); }
    .rank-badge.rn { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }

    .card-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0.8rem;
      margin-bottom: 1.2rem;
    }

    .metric {
      background: rgba(0,0,0,0.2);
      border-radius: 12px;
      padding: 0.8rem 0.6rem;
      text-align: center;
    }

    .metric-value {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.25rem;
    }

    .metric-label {
      font-size: 0.62rem;
      color: var(--muted);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    /* ── Visibility bar ── */
    .vis-section { }

    .vis-header {
      display: flex;
      justify-content: space-between;
      font-size: 0.7rem;
      color: var(--muted);
      margin-bottom: 0.5rem;
      letter-spacing: 0.05em;
    }

    .vis-score { color: var(--accent); font-weight: 700; }

    .vis-bar {
      height: 6px;
      background: rgba(255,255,255,0.06);
      border-radius: 100px;
      overflow: hidden;
    }

    .vis-fill {
      height: 100%;
      border-radius: 100px;
      transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .vis-fill.high { background: linear-gradient(90deg, var(--green), var(--accent)); }
    .vis-fill.mid { background: linear-gradient(90deg, var(--gold), #ff9f1c); }
    .vis-fill.low { background: linear-gradient(90deg, var(--red), #ff6b6b); }

    .below-horizon {
      font-size: 0.72rem;
      color: var(--red);
      letter-spacing: 0.08em;
      margin-top: 0.5rem;
    }

    /* ── Sky compass ── */
    .sky-compass {
      margin-top: 1.2rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 0.72rem;
      color: var(--muted);
    }

    .compass-needle {
      width: 18px; height: 18px;
      border: 1.5px solid var(--muted);
      border-radius: 50%;
      position: relative;
      flex-shrink: 0;
    }

    .compass-needle::after {
      content: '';
      position: absolute;
      top: 50%; left: 50%;
      width: 1.5px; height: 7px;
      background: var(--accent);
      transform-origin: bottom center;
      transform: translate(-50%, -100%) rotate(0deg);
    }

    /* ── Intro state ── */
    .intro-block {
      text-align: center;
      padding: 5rem 2rem;
      max-width: 420px;
      margin: 0 auto;
    }

    .intro-illustration {
      font-size: 5rem;
      margin-bottom: 1.5rem;
      display: block;
      animation: float 4s ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-12px); }
    }

    .intro-title {
      font-family: var(--font-display);
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text);
    }

    .intro-desc {
      font-size: 0.8rem;
      color: var(--muted);
      line-height: 1.8;
    }

    /* ── Transition ── */
    .fade-up-enter-active {
      transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .fade-up-enter-from {
      opacity: 0;
      transform: translateY(20px);
    }

    .stagger-enter-active {
      transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .stagger-enter-from {
      opacity: 0;
      transform: translateY(16px) scale(0.97);
    }

    /* ── Footer ── */
    .footer {
      text-align: center;
      padding: 2rem;
      font-size: 0.7rem;
      color: var(--muted);
      border-top: 1px solid var(--border);
      letter-spacing: 0.05em;
    }

    .footer a { color: var(--accent); text-decoration: none; }

    @media (max-width: 600px) {
      .header { padding: 1rem 1.2rem; }
      .main { padding: 1.5rem 1rem 3rem; }
      .grid { grid-template-columns: 1fr; }
      .hero h1 { font-size: 2rem; }
    }