/* ==========================================================================
       JJINTEM INDEX · NEXT-GEN RESEARCH-BACKED E-COMMERCE PLATFORM
       Aesthetic: Hyper-Clean Neo-Editorial Dark / Tactile Precision
       Inspirations: Linear.app, Teenage Engineering, Wirecutter, Vercel
       ========================================================================== */
    :root {
      --bg-base: #06080d;
      --bg-surface: #0c101a;
      --bg-card: rgba(16, 22, 34, 0.75);
      --bg-card-hover: rgba(22, 30, 48, 0.9);
      --border-subtle: rgba(255, 255, 255, 0.07);
      --border-strong: rgba(255, 255, 255, 0.15);
      --border-glow: rgba(56, 189, 248, 0.45);

      --text-white: #ffffff;
      --text-primary: #f1f5f9;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;

      --accent-cyan: #38bdf8;
      --accent-mint: #34d399;
      --accent-emerald: #10b981;
      --accent-amber: #f59e0b;
      --accent-rose: #f43f5e;
      --accent-purple: #a855f7;

      --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
      --ease-out: cubic-bezier(0, 0, 0.2, 1);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; background: var(--bg-base); }
    body {
      font-family: 'Plus Jakarta Sans', 'Pretendard', -apple-system, sans-serif;
      background-color: var(--bg-base);
      color: var(--text-primary);
      line-height: 1.55;
      -webkit-font-smoothing: antialiased;
      overflow-x: clip;
      padding-bottom: 120px;
    }

    /* Ambient Background Mesh */
    .ambient-mesh {
      position: fixed;
      top: 0; left: 0; width: 100vw; height: 100vh;
      pointer-events: none; z-index: 0;
      background: 
        radial-gradient(circle at 15% 15%, rgba(56, 189, 248, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 85% 25%, rgba(168, 85, 247, 0.07) 0%, transparent 50%),
        radial-gradient(circle at 50% 85%, rgba(52, 211, 153, 0.06) 0%, transparent 55%);
      filter: blur(80px);
    }

    .wrapper {
      position: relative;
      z-index: 1;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Navigation Bar */
    .top-nav {
      position: sticky;
      top: 16px;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 24px;
      background: rgba(10, 14, 23, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      margin-bottom: 24px;
      box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text-white);
      cursor: pointer;
    }
    .brand-mark {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: 'Outfit', sans-serif;
      font-weight: 900;
      font-size: 17px;
      color: #06080d;
      box-shadow: 0 0 16px rgba(56, 189, 248, 0.4);
    }
    .brand-title {
      font-family: 'Outfit', sans-serif;
      font-weight: 800;
      font-size: 17px;
      letter-spacing: -0.5px;
      color: var(--text-white);
    }
    .brand-tag {
      font-size: 11px;
      font-weight: 700;
      padding: 2px 7px;
      background: rgba(56, 189, 248, 0.12);
      border: 1px solid rgba(56, 189, 248, 0.25);
      border-radius: 6px;
      color: var(--accent-cyan);
      letter-spacing: 0.5px;
    }

    .nav-stats {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 13px;
    }
    .nav-stat-item {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--text-secondary);
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background: var(--accent-emerald);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-emerald);
      animation: pulse-dot 2s infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .nav-cafe-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(3, 199, 90, 0.1);
      border: 1px solid rgba(3, 199, 90, 0.3);
      border-radius: 9999px;
      color: #03c75a;
      text-decoration: none;
      font-size: 12.5px;
      font-weight: 700;
      transition: all 0.2s var(--ease-spring);
    }
    .nav-cafe-btn:hover {
      background: #03c75a;
      color: #000;
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(3, 199, 90, 0.3);
    }

    /* FTC Official Disclosure Banner */
    .ftc-banner {
      background: rgba(244, 63, 94, 0.08);
      border: 1px solid rgba(244, 63, 94, 0.25);
      border-radius: 12px;
      padding: 10px 18px;
      margin-bottom: 32px;
      font-size: 12.5px;
      color: #fca5a5;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .ftc-badge {
      font-weight: 800;
      background: #f43f5e;
      color: #fff;
      padding: 2px 7px;
      border-radius: 4px;
      font-size: 11px;
    }

    /* View Containers */
    .view-container {
      display: block;
      transition: opacity 0.3s ease;
    }
    .view-hidden {
      display: none !important;
    }

    /* Hero Header */
    .hero-section {
      text-align: center;
      padding: 20px 0 40px;
      position: relative;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      font-size: 12.5px;
      font-weight: 600;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }
    .hero-eyebrow-accent {
      color: var(--accent-cyan);
      font-weight: 700;
    }
    .hero-heading {
      font-family: 'Outfit', 'Pretendard', sans-serif;
      font-size: clamp(34px, 5.5vw, 60px);
      font-weight: 900;
      letter-spacing: -1.5px;
      line-height: 1.12;
      color: var(--text-white);
      margin-bottom: 18px;
      word-break: keep-all;
    }
    .hero-heading-gradient {
      background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-sub {
      font-size: clamp(15px, 1.8vw, 18px);
      color: var(--text-secondary);
      max-width: 720px;
      margin: 0 auto 32px;
      font-weight: 400;
      line-height: 1.6;
      word-break: keep-all;
    }

    /* Category Pill Selector */
    .filter-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .filter-btn {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-subtle);
      color: var(--text-secondary);
      padding: 9px 18px;
      border-radius: 9999px;
      font-size: 13.5px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s var(--ease-spring);
    }
    .filter-btn:hover {
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-white);
      transform: translateY(-1px);
    }
    .filter-btn.active {
      background: var(--text-white);
      color: #06080d;
      border-color: var(--text-white);
      box-shadow: 0 4px 18px rgba(255, 255, 255, 0.25);
    }

    /* Catalog Cards Matrix (Shopping Mall Grid) */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
      margin-bottom: 70px;
    }
    .gear-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      transition: all 0.3s var(--ease-spring);
      position: relative;
      cursor: pointer;
    }
    .gear-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-strong);
      box-shadow: 0 20px 40px -10px rgba(0,0,0,0.7);
      background: var(--bg-card-hover);
    }
    .gear-thumb {
      width: 100%;
      aspect-ratio: 4 / 3;
      background: #090d16;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .gear-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s var(--ease-spring);
    }
    .gear-card:hover .gear-thumb img {
      transform: scale(1.06);
    }
    .gear-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(6, 8, 13, 0.85);
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      padding: 4px 10px;
      font-size: 11px;
      font-weight: 700;
      color: var(--text-secondary);
      backdrop-filter: blur(8px);
    }
    .gear-score-chip {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(56, 189, 248, 0.15);
      border: 1px solid rgba(56, 189, 248, 0.3);
      border-radius: 6px;
      padding: 3px 8px;
      font-size: 11px;
      font-weight: 800;
      color: var(--accent-cyan);
      backdrop-filter: blur(8px);
    }

    .gear-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
      justify-content: space-between;
      gap: 14px;
    }
    .gear-brand {
      font-size: 11.5px;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .gear-name {
      font-size: 16.5px;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.35;
      margin-top: 4px;
    }
    .gear-reason {
      font-size: 12.5px;
      color: var(--text-secondary);
      line-height: 1.5;
      margin-top: 6px;
    }
    .gear-footer {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding-top: 14px;
      border-top: 1px solid var(--border-subtle);
    }
    .gear-price-row {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
    }
    .gear-price {
      font-family: 'Outfit', sans-serif;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-white);
    }
    .gear-delivery-tag {
      font-size: 11px;
      font-weight: 700;
      color: #38bdf8;
      background: rgba(56, 189, 248, 0.12);
      border: 1px solid rgba(56, 189, 248, 0.25);
      border-radius: 4px;
      padding: 2px 7px;
      letter-spacing: 0.2px;
    }
    .gear-action-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }
    .btn-card-detail {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      padding: 9px 8px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      color: var(--text-primary);
      text-decoration: none;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-card-detail:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.35);
      color: #ffffff;
      transform: translateY(-1px);
    }
    .btn-card-buy {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      padding: 9px 8px;
      background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
      border: 1px solid rgba(56, 189, 248, 0.4);
      border-radius: 8px;
      color: #ffffff;
      text-decoration: none;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 2px 8px rgba(2, 132, 199, 0.35);
      transition: all 0.2s var(--ease-spring);
    }
    .btn-card-buy:hover {
      background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
      border-color: #38bdf8;
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.55);
    }

    /* ==========================================================================
       PRODUCT DETAIL PAGE (IMAGE 2 MASTER STANDARD)
       ========================================================================== */
    .detail-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 12px;
    }
    .btn-back {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-subtle);
      border-radius: 9999px;
      color: var(--text-primary);
      text-decoration: none;
      font-size: 13.5px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-back:hover {
      background: rgba(255, 255, 255, 0.12);
      color: var(--text-white);
      transform: translateX(-2px);
    }
    .detail-breadcrumb {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .detail-breadcrumb span {
      color: var(--text-secondary);
    }

    .spotlight-card {
      background: linear-gradient(145deg, rgba(16, 24, 39, 0.9) 0%, rgba(10, 15, 26, 0.96) 100%);
      border: 1px solid var(--border-strong);
      border-radius: 28px;
      padding: clamp(24px, 4vw, 44px);
      margin-bottom: 60px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 24px 60px -15px rgba(0,0,0,0.75);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
    }
    .spotlight-glow {
      position: absolute;
      top: -120px; right: -120px;
      width: 400px; height: 400px;
      background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .spotlight-grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: clamp(28px, 4vw, 56px);
      align-items: start;
    }
    @media (max-width: 960px) {
      .spotlight-grid { grid-template-columns: 1fr; }
    }

    .spotlight-media {
      position: relative;
      background: #090d16;
      border-radius: 20px;
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      aspect-ratio: 1 / 1;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 16px 40px -10px rgba(0,0,0,0.6);
    }
    .spotlight-media a {
      display: block; width: 100%; height: 100%;
    }
    .spotlight-img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform 0.6s var(--ease-spring);
    }
    .spotlight-media:hover .spotlight-img {
      transform: scale(1.05);
    }
    .spotlight-badge-verified {
      position: absolute;
      top: 18px; left: 18px;
      background: rgba(10, 14, 23, 0.88);
      border: 1px solid rgba(52, 211, 153, 0.35);
      border-radius: 9999px;
      padding: 6px 14px;
      font-size: 12px;
      font-weight: 700;
      color: var(--accent-mint);
      display: flex;
      align-items: center;
      gap: 6px;
      backdrop-filter: blur(10px);
    }
    .spotlight-badge-tag {
      position: absolute;
      bottom: 18px; right: 18px;
      background: rgba(10, 14, 23, 0.88);
      border: 1px solid var(--border-subtle);
      border-radius: 10px;
      padding: 6px 12px;
      font-size: 12px;
      color: var(--text-secondary);
      font-family: 'Outfit', sans-serif;
    }

    .spotlight-body {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .spotlight-meta-row {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .tag-category {
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      color: var(--accent-cyan);
    }
    .tag-score {
      background: rgba(56, 189, 248, 0.12);
      border: 1px solid rgba(56, 189, 248, 0.3);
      color: var(--accent-cyan);
      padding: 3px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 800;
    }

    .spotlight-title {
      font-family: 'Outfit', 'Pretendard', sans-serif;
      font-size: clamp(24px, 3.2vw, 34px);
      font-weight: 800;
      letter-spacing: -0.8px;
      line-height: 1.25;
      color: var(--text-white);
    }
    .spotlight-desc {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* Spec Metrics Bar */
    .spec-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      background: rgba(255, 255, 255, 0.025);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 14px;
    }
    .spec-item {
      text-align: center;
    }
    .spec-val {
      font-family: 'Outfit', sans-serif;
      font-size: 18px;
      font-weight: 800;
      color: var(--text-white);
    }
    .spec-lbl {
      font-size: 11.5px;
      color: var(--text-muted);
      margin-top: 2px;
    }

    /* Academic Research Box (Image 2 standard) */
    .spotlight-research-box {
      background: rgba(56, 189, 248, 0.04);
      border: 1px solid rgba(56, 189, 248, 0.22);
      border-radius: 16px;
      padding: 16px 18px;
    }
    .spotlight-research-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 10px;
    }
    .spotlight-research-tag {
      font-size: 12px;
      font-weight: 800;
      color: var(--accent-cyan);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .spotlight-research-count {
      font-size: 11px;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.05);
      padding: 2px 7px;
      border-radius: 4px;
    }
    .spotlight-research-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .spotlight-research-item {
      font-size: 12.5px;
      color: var(--text-secondary);
      line-height: 1.55;
      padding-left: 16px;
      position: relative;
    }
    .spotlight-research-item::before {
      content: '✓';
      color: var(--accent-cyan);
      position: absolute;
      left: 0;
      font-weight: 800;
      font-size: 11px;
    }
    .spotlight-research-item b {
      color: var(--text-white);
      font-weight: 600;
    }
    .spotlight-research-item .doi {
      color: var(--accent-cyan);
      font-family: 'Outfit', monospace;
      font-size: 11px;
      opacity: 0.85;
      margin-left: 4px;
    }

    /* Stanford Generative Agents Consensus Box (Image 2 standard) */
    .spotlight-agents-box {
      background: rgba(168, 85, 247, 0.08);
      border: 1px solid rgba(168, 85, 247, 0.28);
      border-radius: 14px;
      padding: 14px 16px;
    }
    .spotlight-agents-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
      flex-wrap: wrap;
      gap: 6px;
    }
    .spotlight-agents-tag {
      font-size: 11.5px;
      font-weight: 800;
      color: #c084fc;
      display: flex;
      align-items: center;
      gap: 5px;
    }
    .spotlight-agents-rate {
      font-size: 11px;
      background: rgba(168, 85, 247, 0.2);
      color: #e9d5ff;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }
    .spotlight-agents-text {
      font-size: 12px;
      color: #e2e8f0;
      line-height: 1.55;
    }

    /* Honest Flaw & Fix (Image 2 standard) */
    .honest-box {
      background: rgba(15, 23, 42, 0.65);
      border-left: 3px solid var(--accent-amber);
      border-radius: 0 12px 12px 0;
      padding: 14px 16px;
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.55;
    }
    .honest-box b {
      color: var(--accent-amber);
      display: block;
      margin-bottom: 2px;
    }

    /* Price & Buy CTA Row */
    .price-action-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding-top: 14px;
      border-top: 1px solid var(--border-subtle);
      flex-wrap: wrap;
    }
    .price-block {
      display: flex;
      flex-direction: column;
    }
    .price-caption {
      font-size: 12px;
      color: var(--text-muted);
    }
    .price-num {
      font-family: 'Outfit', sans-serif;
      font-size: 32px;
      font-weight: 900;
      color: var(--text-white);
      letter-spacing: -0.5px;
    }
    .price-num span {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-secondary);
      margin-left: 2px;
    }

    .btn-buy-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 16px 32px;
      background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 14px;
      color: #ffffff !important;
      text-decoration: none;
      font-weight: 700;
      font-size: 15.5px;
      cursor: pointer;
      box-shadow: 0 8px 24px -6px rgba(2, 132, 199, 0.5);
      transition: all 0.25s var(--ease-spring);
    }
    .btn-buy-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px -4px rgba(2, 132, 199, 0.75);
      background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
    }

    /* Embedded Simulator */
    .calculator-widget {
      background: linear-gradient(135deg, rgba(14, 21, 37, 0.9) 0%, rgba(10, 15, 26, 0.95) 100%);
      border: 1px solid var(--border-strong);
      border-radius: 24px;
      padding: clamp(24px, 4vw, 36px);
      margin-bottom: 50px;
      box-shadow: 0 20px 40px -15px rgba(0,0,0,0.6);
    }
    .calc-header {
      text-align: center;
      max-width: 580px;
      margin: 0 auto 24px;
    }
    .calc-title {
      font-family: 'Outfit', sans-serif;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 6px;
    }
    .calc-sub {
      font-size: 13.5px;
      color: var(--text-secondary);
    }
    .calc-slider-box {
      max-width: 600px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .calc-slider-label {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      font-weight: 600;
    }
    input[type=range] {
      -webkit-appearance: none;
      width: 100%;
      height: 8px;
      border-radius: 9999px;
      background: rgba(255, 255, 255, 0.1);
      outline: none;
    }
    input[type=range]::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 22px; height: 22px;
      border-radius: 50%;
      background: var(--accent-cyan);
      cursor: pointer;
      box-shadow: 0 0 14px var(--accent-cyan);
    }
    .calc-result-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    @media (max-width: 640px) {
      .calc-result-grid { grid-template-columns: 1fr; }
    }
    .calc-result-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 16px;
      text-align: center;
    }
    .calc-result-val {
      font-family: 'Outfit', sans-serif;
      font-size: 26px;
      font-weight: 900;
      color: var(--accent-mint);
    }
    .calc-result-sub {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* Footer */
    .site-footer {
      border-top: 1px solid var(--border-subtle);
      padding: 40px 0 20px;
      text-align: center;
      font-size: 12.5px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .footer-links {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 16px;
    }
    .footer-links a {
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 500;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: var(--text-white);
    }

/* Card Today Highlight */
.card-today-highlight {
  border: 1px solid rgba(225, 29, 72, 0.45) !important;
  box-shadow: 0 10px 30px rgba(225, 29, 72, 0.18) !important;
  position: relative;
}
.card-today-highlight:hover {
  border-color: #f43f5e !important;
  box-shadow: 0 16px 40px rgba(225, 29, 72, 0.3) !important;
}