:root {
        color-scheme: dark;
        --bg: #050f0d;
        --bg-panel: #101a17;
        --brand: #c1ff3e;
        --accent: #f5ffe1;
        --muted: #90a17a;
      }

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

      body {
        font-family: "Segoe UI", "Roboto", system-ui, -apple-system, sans-serif;
        min-height: 100vh;
        background: radial-gradient(circle at top, #1e2b24, var(--bg));
        color: var(--accent);
        line-height: 1.6;
      }

      .hero {
        position: relative;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 4rem clamp(1rem, 5vw, 6rem) 6rem;
        gap: 2rem;
        overflow: hidden;
      }

      .hero::after {
        content: "";
        position: absolute;
        inset: 0;
        background: url("https://images.pexels.com/photos/3562110/pexels-photo-3562110.jpeg")
        center/cover;
        opacity: 0.25;
        mix-blend-mode: screen;
        filter: grayscale(20%);
        z-index: -2;
      }

      .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(5, 10, 7, 0.95), rgba(8, 25, 19, 0.5));
        z-index: -1;
      }

      .badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(193, 255, 62, 0.12);
        border: 1px solid rgba(193, 255, 62, 0.6);
        border-radius: 999px;
        padding: 0.4rem 1.1rem;
        font-size: 0.85rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
      }

      h1 {
        font-size: clamp(2.8rem, 8vw, 4.5rem);
        max-width: 14ch;
        line-height: 1.1;
        text-transform: uppercase;
        text-shadow: 0 12px 35px rgba(0, 0, 0, 0.6);
      }

      .hero p {
        max-width: 500px;
        color: var(--muted);
        font-size: 1.05rem;
      }

      .cta-group {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
      }

      .btn {
        border: none;
        border-radius: 999px;
        padding: 0.9rem 1.8rem;
        font-size: 1rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        cursor: pointer;
        transition: transform 180ms ease, box-shadow 180ms ease;
      }

      .btn-primary {
        background: var(--brand);
        color: white;
        box-shadow: 0 10px 30px rgba(230, 57, 70, 0.4);
      }

      .btn-outline {
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.3);
        color: var(--accent);
      }

      .btn:hover {
        transform: translateY(-2px);
      }

      .specs {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
        gap: 1.5rem;
        margin-top: 3rem;
        width: 100%;
      }

      .spec-card {
        background: rgba(16, 18, 21, 0.7);
        padding: 1.5rem;
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(6px);
      }

      .spec-card strong {
        display: block;
        font-size: 1.8rem;
        color: white;
      }

      .spec-card span {
        font-size: 0.9rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--muted);
      }

      .product-panel {
        margin: -4rem auto 4rem;
        width: min(1100px, 92vw);
        background: linear-gradient(120deg, rgba(16, 18, 21, 0.95), rgba(5, 6, 6, 0.95));
        border-radius: 32px;
        padding: clamp(1.5rem, 4vw, 3rem);
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2.5rem;
        box-shadow: 0 25px 80px rgba(0, 0, 0, 0.65);
      }

      .product-panel h2 {
        text-transform: uppercase;
        margin-bottom: 0.8rem;
      }

      .product-panel ul {
        list-style: none;
        display: grid;
        gap: 0.7rem;
      }

      .product-panel li::before {
        content: "—";
        color: var(--brand);
        margin-right: 0.4rem;
      }

      .price-tag {
        font-size: clamp(2rem, 4vw, 3rem);
        font-weight: 700;
        color: var(--brand);
      }

      .contact-form {
        width: min(720px, 90vw);
        margin: 0 auto 4rem;
        background: rgba(16, 18, 21, 0.85);
        border-radius: 24px;
        padding: clamp(1.5rem, 4vw, 3rem);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(255, 255, 255, 0.05);
      }

      .contact-form h2 {
        text-transform: uppercase;
        margin-bottom: 1rem;
      }

      .form-grid {
        display: grid;
        gap: 1.2rem;
      }

      label {
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--muted);
      }

      input,
      textarea {
        width: 100%;
        padding: 0.85rem 1rem;
        border-radius: 14px;
        border: 1px solid rgba(255, 255, 255, 0.15);
        background: rgba(5, 6, 6, 0.6);
        color: var(--accent);
        font-size: 1rem;
        font-family: inherit;
        resize: vertical;
      }

      textarea {
        min-height: 140px;
      }

      input:focus,
      textarea:focus {
        outline: none;
        border-color: var(--brand);
        box-shadow: 0 0 0 2px rgba(230, 57, 70, 0.2);
      }

      .footer {
        text-align: center;
        padding: 2rem;
        color: var(--muted);
        font-size: 0.9rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
      }

      .field-error {
        margin-top: 0.25rem;
        font-size: 0.85rem;
        color: #ff6b6b;
      }

      .form-errors {
        display: none;
        margin-bottom: 1rem;
        padding: 0.9rem 1.1rem;
        border-radius: 12px;
        border: 1px solid rgba(255, 107, 107, 0.4);
        background: rgba(255, 107, 107, 0.12);
        color: #ffecec;
        font-size: 0.95rem;
        line-height: 1.4;
      }

      .form-errors.is-visible {
        display: block;
      }

      .form-errors.is-success {
        border-color: rgba(193, 255, 62, 0.6);
        background: rgba(193, 255, 62, 0.12);
        color: #ecffd0;
      }

      .has-error input,
      .has-error textarea {
        border-color: rgba(255, 107, 107, 0.8);
        box-shadow: 0 0 0 1px rgba(255, 107, 107, 0.2);
      }

      .gallery {
        width: min(1200px, 92vw);
        margin: 4rem auto;
        padding: 0 clamp(1rem, 4vw, 2rem);
      }

      .gallery h2 {
        text-align: center;
        text-transform: uppercase;
        margin-bottom: 2.5rem;
        font-size: clamp(1.8rem, 4vw, 2.5rem);
      }

      .gallery-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
        margin-bottom: 2rem;
      }

      .gallery-item {
        position: relative;
        border-radius: 20px;
        overflow: hidden;
        aspect-ratio: 1;
        background: rgba(16, 18, 21, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.1);
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }

      .gallery-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 40px rgba(193, 255, 62, 0.2);
        border-color: rgba(193, 255, 62, 0.4);
      }

      .gallery-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
      }

      .gallery-featured {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
        margin-top: 2rem;
      }

      .gallery-featured-item {
        position: relative;
        border-radius: 24px;
        overflow: hidden;
        aspect-ratio: 4/3;
        background: rgba(16, 18, 21, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }

      .gallery-featured-item:hover {
        transform: scale(1.02);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
      }

      .gallery-featured-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
      }

      @media (max-width: 768px) {
        .gallery-grid {
          grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
          gap: 1rem;
        }
      }