/**
 * assets/css/style.css — AIRPREMA
 * Tema akademik terang, minimalis, tanpa glassmorphism.
 * Diekstrak & dirapikan dari outline airprema.html, dengan bagian
 * .team-grid/.team-card/.about-copy tim-peneliti dihapus (tidak dipakai).
 */

    :root {
      --navy: #1e40af;
      --navy-dark: #172554;
      --sky: #38bdf8;
      --blue-soft: #eff6ff;
      --surface: #ffffff;
      --canvas: #f5f7fb;
      --line: #dbe3f0;
      --ink: #172033;
      --muted: #64748b;
      --safe: #16a34a;
      --warning: #d97706;
      --alert: #ea580c;
      --danger: #dc2626;
      --pm1: #6d28d9;
      --pm25: #8b5cf6;
      --pm10: #a78bfa;
      --co: #ea580c;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--canvas);
      color: var(--ink);
      font-family: "DM Sans", sans-serif;
    }

    .app-shell { width: 100%; min-height: 100%; }
    .font-display { font-family: "Poppins", sans-serif; }
    .font-data { font-family: "DM Mono", monospace; }

    /* ═══════════════ NAVBAR ═══════════════ */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(255,255,255,.08);
      background: linear-gradient(120deg, var(--navy-dark), var(--navy) 60%, #1e40af);
      box-shadow: 0 1px 0 rgba(15,23,42,.03), 0 12px 26px -16px rgba(23,37,84,.55);
    }
    /* Garis aksen di bawah navbar — gradient tiga warna, tidak flat lagi */
    .site-header::after {
      content: "";
      display: block;
      height: 3px;
      background: linear-gradient(90deg, var(--sky) 0%, var(--pm25) 45%, var(--navy) 75%, transparent 100%);
      background-size: 200% 100%;
      animation: navGradientShift 8s ease-in-out infinite;
    }
    @keyframes navGradientShift {
      0%, 100% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
    }

    .nav-inner {
      width: min(1180px, calc(100% - 32px));
      min-height: 78px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand-wrap {
      display: flex; align-items: center; gap: 13px; min-width: 0;
      text-decoration: none; color: inherit; border-radius: 10px;
      transition: opacity .15s ease, transform .2s ease;
    }
    .brand-wrap:hover { opacity: .9; transform: translateY(-1px); }
    .brand-wrap:focus-visible { outline: 2px solid var(--sky); outline-offset: 4px; }

    .brand-mark {
      width: 44px; height: 44px; border-radius: 13px;
      background: linear-gradient(145deg, rgba(255,255,255,.16), rgba(56,189,248,.28));
      border: 1px solid rgba(255,255,255,.22);
      color: white;
      display: grid; place-items: center; font-size: 21px;
      box-shadow: 0 10px 20px -4px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.25);
      flex: none; overflow: hidden; position: relative;
    }
    .brand-logo-img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .brand-logo-fallback { display: none; color: #fff; font-size: 20px; }

    .brand-copy { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
    .brand-title {
      margin: 0; line-height: 1.1; font: 700 20px "Poppins", sans-serif; letter-spacing: -.01em;
      color: #ffffff;
    }
    .brand-tagline { margin: 3px 0 0; color: #bfdbfe; font-size: 12px; }

    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-divider { width: 1px; height: 22px; background: rgba(255,255,255,.18); margin: 0 6px; }

    .nav-button {
      position: relative;
      border: 0; background: transparent; color: #cfe0ff;
      padding: 10px 15px; border-radius: 999px; cursor: pointer;
      font: 600 14px "DM Sans", sans-serif; transition: background .22s ease, color .22s ease, transform .18s ease;
      display: inline-flex; align-items: center; gap: 7px;
    }
    .nav-button i { font-size: 15px; color: white; transition: color .2s ease; }
    .nav-button:hover { background: rgba(255,255,255,.1); color: #ffffff; transform: translateY(-1px); }
    .nav-button.active {
      background: rgba(255,255,255,.16);
      color: #ffffff;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.22);
    }
    .nav-button:hover i, .nav-button.active i { color: var(white); }

    /* Titik aktif kecil, bukan garis bawah datar — lebih hidup */
    .nav-button::after {
      content: ""; position: absolute; left: 50%; bottom: 3px;
      width: 4px; height: 4px; border-radius: 50%; background: var(--sky);
      transform: translateX(-50%) scale(0); transition: transform .22s ease;
    }
    .nav-button.active::after { transform: translateX(-50%) scale(1); }

    /* Tombol admin — selector digabung (.nav-button.nav-button-admin) supaya
       spesifisitasnya pasti menang atas .nav-button:hover, dan warna solid
       (bukan gradient) supaya kontras teks selalu terjaga di atas navbar navy. */
    .nav-button.nav-button-admin {
      background: rgba(255, 255, 255, .16);
      color: #ffffff;
      padding: 10px 18px;
      border-radius: 999px;
      font-weight: 700;
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
    }
    .nav-button.nav-button-admin i { color: var(white); }
    .nav-button.nav-button-admin::after { display: none; }
    .nav-button.nav-button-admin:hover {
      background: rgba(255, 255, 255, .24);
      color: #ffffff;
    }
    .nav-button.nav-button-admin:hover i { color: var(--sky); }

    .menu-toggle {
      display: none; border: 1px solid rgba(255,255,255,.25); border-radius: 10px;
      color: #ffffff; background: rgba(255,255,255,.08); padding: 8px 10px; font-size: 20px; cursor: pointer;
      transition: background .18s ease, transform .18s ease;
    }
    .menu-toggle:hover { background: rgba(255,255,255,.16); }
    .menu-toggle:active { transform: scale(.94); }

    .main-content { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 30px 0 48px; }
    .app-section { display: none; animation: sectionFade .32s ease both; }
    .app-section.active { display: block; }
    @keyframes sectionFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

    .dashboard-hero {
      border: 1px solid #cbdaf7;
      background: linear-gradient(120deg, #eaf2ff, #ffffff 72%);
      border-radius: 18px; padding: 28px;
      display: flex; align-items: flex-start; justify-content: space-between; gap: 20px;
      margin-bottom: 22px;
    }
    .eyebrow { color: var(--navy); font-weight: 700; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 8px; }
    .page-heading { font-family: "Poppins", sans-serif; font-size: clamp(25px, 4vw, 34px); margin: 0; letter-spacing: -.03em; }
    .update-time { color: var(--muted); margin: 9px 0 0; font-size: 14px; }
    .risk-badge {
      display: inline-flex; align-items: center; gap: 8px; flex: none;
      padding: 10px 14px; border-radius: 999px; font-size: 14px; font-weight: 700;
      background: #dcfce7; color: #166534;
    }

    .sensor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .sensor-card, .panel, .chart-card, .prediction-card, .method-card {
      border: 1px solid var(--line); background: var(--surface);
      border-radius: 15px; box-shadow: 0 4px 14px rgba(15, 23, 42, .04);
    }
    .sensor-card { padding: 19px; position: relative; overflow: hidden; }
    .sensor-card::after {
      content: ""; position: absolute; width: 76px; height: 76px;
      border-radius: 50%; right: -28px; top: -30px; background: #eff6ff;
    }
    .sensor-name { font-size: 13px; color: var(--muted); font-weight: 700; margin: 0; }
    .sensor-icon { position: absolute; z-index: 1; right: 16px; top: 15px; color: var(--navy); font-size: 20px; }
    .sensor-value { margin: 13px 0 9px; font: 700 28px "DM Mono", monospace; letter-spacing: -.08em; }
    .sensor-footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
    .status-pill { padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; }
    .trend { color: var(--muted); font-size: 12px; font-weight: 700; }

    .map-layout { display: grid; grid-template-columns: 1.65fr .85fr; gap: 16px; margin-top: 22px; }
    #air-map { min-height: 348px; width: 100%; border-radius: 15px; border: 1px solid var(--line); z-index: 1; }
    .location-panel { padding: 24px; }
    .section-mini-title { font-family: "Poppins", sans-serif; font-size: 18px; margin: 0 0 16px; }
    .location-list { display: grid; gap: 15px; margin: 0; }
    .location-list div { border-bottom: 1px solid #edf1f7; padding-bottom: 12px; }
    .location-list div:last-child { border: 0; padding-bottom: 0; }
    .location-list dt { color: var(--muted); font-size: 12px; margin-bottom: 3px; }
    .location-list dd { margin: 0; font-weight: 600; font-size: 14px; }

    .chart-topline { margin: 30px 0 15px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
    .range-filter { display: flex; gap: 7px; flex-wrap: wrap; }
    .range-button {
      border: 1px solid var(--line); background: white; color: #475569;
      padding: 8px 12px; border-radius: 8px; cursor: pointer; font: 700 13px "DM Sans", sans-serif;
    }
    .range-button.active { background: var(--navy); border-color: var(--navy); color: white; }
    .chart-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .chart-card { padding: 19px; min-width: 0; }
    .chart-title { margin: 0 0 14px; font: 600 15px "Poppins", sans-serif; }
    .chart-holder { height: 245px; position: relative; }

    .prediction-wrap { margin-top: 22px; }
    .prediction-header { margin-bottom: 14px; }
    .prediction-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .prediction-card { padding: 17px; border-top: 4px solid var(--navy); }
    .bilstm-card { margin-top: 16px; padding: 20px; }
    .bilstm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .bilstm-chart-holder { height: 280px; position: relative; }
    .prediction-name { color: var(--muted); font-size: 12px; margin: 0; font-weight: 700; }
    .prediction-value { margin: 8px 0 2px; font: 700 22px "DM Mono", monospace; }
    .prediction-note { margin: 0; color: var(--muted); font-size: 12px; }

    .content-intro { max-width: 100%; margin-bottom: 25px; }
    .content-intro h1 { font-family: "Poppins", sans-serif; font-size: clamp(27px, 4vw, 36px); letter-spacing: -.04em; margin: 0 0 10px; }
    .content-intro p { color: #475569; line-height: 1.8; margin: 0 0 14px; text-align: justify; text-align-last: justify; text-justify: inter-word; }
    .content-intro p:last-child { margin-bottom: 0; }

    /* ═══════════════ TENTANG SISTEM ═══════════════ */
    .about-hero {
      position: relative; overflow: hidden;
      border: 1px solid #cbdaf7; border-radius: 20px;
      background: linear-gradient(135deg, var(--navy-dark), var(--navy) 55%, #2f6fd6);
      color: #fff; padding: 38px 34px; margin-bottom: 26px;
    }
    .about-hero::before, .about-hero::after {
      content: ""; position: absolute; border-radius: 50%;
      background: radial-gradient(circle, rgba(255,255,255,.16), transparent 70%);
    }
    .about-hero::before { width: 340px; height: 340px; right: -110px; top: -140px; }
    .about-hero::after { width: 220px; height: 220px; left: -80px; bottom: -110px; background: radial-gradient(circle, rgba(56,189,248,.28), transparent 70%); }
    .about-hero-inner { position: relative; z-index: 1; max-width: 700px; }
    .about-hero .eyebrow { color: #bfdbfe; }
    .about-hero h1 { font-family: "Poppins", sans-serif; font-size: clamp(26px, 4vw, 36px); letter-spacing: -.03em; margin: 0 0 12px; }
    .about-hero p { color: #dbeafe; line-height: 1.8; margin: 0; font-size: 15px; }

    .about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 26px; position: relative; z-index: 1; }
    .about-stat {
      background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.18);
      border-radius: 13px; padding: 14px 16px; backdrop-filter: blur(4px);
    }
    .about-stat .num { font: 700 22px "DM Mono", monospace; color: #fff; letter-spacing: -.02em; }
    .about-stat .lbl { font-size: 12px; color: #bfdbfe; margin-top: 3px; }

    .about-copy { max-width: 100%; margin-top: 4px; }
    .about-copy p { line-height: 1.85; color: #475569; text-align: justify; text-align-last: justify; text-justify: inter-word; }

    .method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 25px; }
    .method-card {
      padding: 24px; position: relative; overflow: hidden;
      border-top: 3px solid var(--accent, var(--navy));
      transition: transform .22s ease, box-shadow .22s ease;
    }
    .method-card:hover { transform: translateY(-4px); box-shadow: 0 16px 30px -14px rgba(15,23,42,.22); }
    .method-card:nth-child(1) { --accent: var(--navy); }
    .method-card:nth-child(2) { --accent: var(--sky); }
    .method-card:nth-child(3) { --accent: var(--pm25); }
    .method-step {
      position: absolute; top: 16px; right: 18px; font: 700 26px "Poppins", sans-serif;
      color: var(--accent, var(--navy)); opacity: .13;
    }
    .method-icon {
      font-size: 21px; color: #fff; margin-bottom: 15px;
      width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
      background: linear-gradient(145deg, var(--accent, var(--navy)), color-mix(in srgb, var(--accent, var(--navy)) 60%, #172554));
      box-shadow: 0 8px 16px -4px color-mix(in srgb, var(--accent, var(--navy)) 55%, transparent);
    }
    .method-card h3 { margin: 0 0 8px; font: 600 17px "Poppins", sans-serif; }
    .method-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

    /* Legenda status risiko — kartu warna-warni, memecah monoton biru */
    .legend-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 25px; }
    .legend-card {
      border-radius: 14px; padding: 18px; border: 1px solid var(--line);
      background: var(--surface); border-left: 5px solid var(--accent);
      transition: transform .2s ease;
    }
    .legend-card:hover { transform: translateY(-3px); }
    .legend-card .legend-name { font: 700 15px "Poppins", sans-serif; color: var(--accent-text, var(--ink)); margin: 0 0 4px; }
    .legend-card .legend-desc { font-size: 12.5px; color: var(--muted); line-height: 1.5; margin: 0; }

    .cta-band {
      margin-top: 30px; border-radius: 18px; padding: 26px 30px;
      background: linear-gradient(120deg, var(--blue-soft), #ffffff 70%);
      border: 1px solid #cbdaf7;
      display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
    }
    .cta-band h3 { margin: 0 0 4px; font: 600 17px "Poppins", sans-serif; }
    .cta-band p { margin: 0; color: var(--muted); font-size: 13.5px; }
    .cta-btn {
      display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
      background: var(--navy); color: #fff; border: 0; padding: 11px 20px; border-radius: 999px;
      font-weight: 700; font-size: 13.5px; cursor: pointer; text-decoration: none;
      box-shadow: 0 8px 18px -4px rgba(30,64,175,.35); transition: transform .18s ease, background .18s ease;
    }
    .cta-btn:hover { transform: translateY(-1px); background: var(--navy-dark); }

    /* ═══════════════ FOOTER ═══════════════ */
    .site-footer {
      width: 100%; color: #dbeafe; position: relative; overflow: hidden;
      background: linear-gradient(160deg, var(--navy-dark) 0%, #14204a 55%, #0e1836 100%);
    }
    /* Garis aksen di atas footer, senada dengan navbar */
    .site-footer::before {
      content: ""; display: block; height: 3px; position: relative; z-index: 2;
      background: linear-gradient(90deg, var(--sky), var(--navy) 55%, var(--pm25));
    }
    /* Bentuk dekoratif blur — memberi kedalaman tanpa gambar */
    .site-footer::after {
      content: ""; position: absolute; z-index: 0; pointer-events: none;
      width: 480px; height: 480px; right: -160px; top: -220px; border-radius: 50%;
      background: radial-gradient(circle, rgba(56,189,248,.14), transparent 70%);
    }

    .footer-inner { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 42px 0 22px; position: relative; z-index: 1; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .9fr; gap: 30px; }

    .footer-brand-col { max-width: 360px; }
    .footer-brand-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
    .footer-mark {
      width: 40px; height: 40px; border-radius: 11px; flex: none;
      background: linear-gradient(145deg, rgba(56,189,248,.22), rgba(255,255,255,.08));
      border: 1px solid rgba(191,219,254,.3);
      display: grid; place-items: center; overflow: hidden;
    }
    .footer-logo-img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .footer-logo-fallback { display: none; color: #bfdbfe; font-size: 18px; }
    .footer-title { color: white; font: 600 18px "Poppins", sans-serif; margin: 0; }

    .footer-status {
      display: inline-flex; align-items: center; gap: 7px; margin-bottom: 16px;
      background: rgba(22,163,74,.14); border: 1px solid rgba(74,222,128,.3);
      color: #86efac; font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
    }
    .footer-status .dot {
      width: 7px; height: 7px; border-radius: 50%; background: #4ade80;
      box-shadow: 0 0 0 rgba(74,222,128,.6); animation: statusPulse 2s infinite;
    }
    @keyframes statusPulse {
      0% { box-shadow: 0 0 0 0 rgba(74,222,128,.55); }
      70% { box-shadow: 0 0 0 7px rgba(74,222,128,0); }
      100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
    }

    .footer-heading {
      color: white; font: 600 14px "Poppins", sans-serif; margin: 0 0 14px;
      display: flex; align-items: center; gap: 8px;
    }
    .footer-heading::before {
      content: ""; width: 4px; height: 14px; border-radius: 3px;
      background: linear-gradient(180deg, var(--sky), var(--pm25));
    }
    .footer-text, .footer-link { color: #bfdbfe; font-size: 14px; line-height: 1.65; text-decoration: none; }
    .footer-links { display: grid; gap: 11px; align-items: start; }
    .footer-link {
      display: inline-flex; align-items: center; gap: 9px;
      background: transparent; border: 0; padding: 0; cursor: pointer;
      font: inherit; text-align: left; width: fit-content; transition: color .18s ease, transform .18s ease;
    }
    .footer-link i {
      color: #7fa8e8; font-size: 13px; flex: none; width: 26px; height: 26px;
      display: inline-flex; align-items: center; justify-content: center; border-radius: 8px;
      background: rgba(255,255,255,.06); transition: background .18s ease, color .18s ease;
    }
    .footer-link:hover { color: white; transform: translateX(3px); }
    .footer-link:hover i { color: var(--sky); background: rgba(56,189,248,.16); }
    .footer-link-static { cursor: default; }
    .footer-link-static:hover { color: #bfdbfe; transform: none; }
    .footer-link-static:hover i { color: #7fa8e8; background: rgba(255,255,255,.06); }

    .footer-bottom {
      border-top: 1px solid rgba(191,219,254,.16); margin-top: 30px; padding-top: 18px;
      display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    }
    .copyright { margin: 0; font-size: 12px; color: #93c5fd; }
    .back-to-top {
      display: inline-flex; align-items: center; gap: 7px;
      color: #dbeafe; font-size: 12px; font-weight: 700; text-decoration: none;
      border: 1px solid rgba(191,219,254,.3); border-radius: 999px; padding: 7px 13px;
      transition: background .18s ease, border-color .18s ease, transform .18s ease;
    }
    .back-to-top:hover { background: rgba(255,255,255,.1); border-color: rgba(191,219,254,.6); transform: translateY(-2px); }
    .back-to-top i { font-size: 12px; }

    .leaflet-popup-content-wrapper { border-radius: 10px; font-family: "DM Sans", sans-serif; }
    .leaflet-popup-content { margin: 13px 15px; line-height: 1.55; }

    /* ── Prediksi BiLSTM (grafik + tabel) ─────────────────────────── */
    .prediction-wrap { margin-top: 30px; }
    .prediksi-table-wrap { margin-top: 16px; padding: 22px; }
    .prediksi-table-scroll { overflow-x: auto; }
    .prediksi-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
    .prediksi-table th, .prediksi-table td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
    .prediksi-table th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
    .prediksi-table td:first-child, .prediksi-table th:first-child { font-family: "DM Mono", monospace; }
    .prediksi-table tr.baris-prediksi { background: var(--blue-soft); }
    .prediksi-table tr.baris-prediksi td:nth-child(2) { color: var(--navy); font-weight: 700; }

    @media (max-width: 900px) {
      .sensor-grid, .prediction-grid { grid-template-columns: repeat(2, 1fr); }
      .map-layout { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .footer-brand-col { grid-column: 1 / -1; max-width: none; }
      .about-stats, .legend-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 767px) {
      .nav-inner { min-height: 68px; }
      .menu-toggle { display: inline-block; }
      .nav-links {
        display: none; position: absolute; left: 16px; right: 16px; top: 67px;
        flex-direction: column; align-items: stretch; padding: 10px; gap: 2px;
        border: 1px solid var(--line); border-radius: 14px; background: white; box-shadow: 0 16px 34px rgba(15,23,42,.14);
        animation: navMenuIn .18s ease both;
      }
      @keyframes navMenuIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
      .nav-links.open { display: flex; }
      .nav-links.open .nav-button { text-align: left; border-radius: 9px; color: #334155; }
      .nav-links.open .nav-button i { color: #94a3b8; }
      .nav-links.open .nav-button:hover, .nav-links.open .nav-button.active {
        background: var(--blue-soft); color: var(--navy); box-shadow: none;
      }
      .nav-links.open .nav-button:hover i, .nav-links.open .nav-button.active i { color: var(--navy); }
      .nav-button::after { display: none; }
      .nav-divider { display: none; }
      .nav-button-admin { margin-top: 4px; justify-content: center; }
      .brand-tagline { display: none; }
      .dashboard-hero { padding: 22px; flex-direction: column; }
      .chart-grid, .method-grid, .bilstm-grid { grid-template-columns: 1fr; }
      .about-stats, .legend-grid { grid-template-columns: 1fr 1fr; }
      .about-hero { padding: 26px 22px; }
      .cta-band { flex-direction: column; align-items: flex-start; }
      .footer-grid { grid-template-columns: 1fr; gap: 22px; }
      .footer-bottom { flex-direction: column; align-items: flex-start; }
    }

    @media (max-width: 520px) {
      .main-content { width: min(100% - 22px, 1180px); padding-top: 20px; }
      .sensor-grid, .prediction-grid { grid-template-columns: 1fr; }
      .dashboard-hero { border-radius: 14px; }
      .profile-detail { grid-template-columns: 1fr; gap: 2px; }
      #air-map { min-height: 290px; }
      .about-stats, .legend-grid { grid-template-columns: 1fr; }
    }