:root {
            --bg: #050816;
            --bg-alt: #0b1020;
            --card-bg: #0f172a;
            --accent: #38bdf8;
            --accent-soft: rgba(56, 189, 248, 0.15);
            --accent-strong: #0ea5e9;
            --text-main: #e5e7eb;
            --text-muted: #9ca3af;
            --border-subtle: #1f2933;
            --danger: #ef4444;
            --success: #22c55e;
            --radius-lg: 18px;
            --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
            --max-width: 1120px;
        }

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

        html, body {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background: radial-gradient(circle at top, #0b1120 0, #020617 40%, #000 100%);
            color: var(--text-main);
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        /* Layout básico */

        .page {
            min-height: 100vh;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header */

        header {
            position: sticky;
            top: 0;
            z-index: 50;
            backdrop-filter: blur(18px);
            background: linear-gradient(to bottom, rgba(2, 6, 23, 0.95), rgba(2, 6, 23, 0.7), transparent);
            border-bottom: 1px solid rgba(15, 23, 42, 0.8);
        }

        .nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 999px;
            background: radial-gradient(circle at 30% 20%, #38bdf8, #0ea5e9 40%, #1d4ed8 80%);
            box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.4), 0 0 26px rgba(59, 130, 246, 0.9);
        }

        .logo-text-main {
            font-weight: 700;
            letter-spacing: 0.07em;
            font-size: 0.95rem;
            text-transform: uppercase;
        }

        .logo-text-sub {
            font-size: 0.7rem;
            text-transform: uppercase;
            color: var(--text-muted);
            letter-spacing: 0.2em;
        }

        .nav-links {
            display: flex;
            gap: 1.5rem;
            align-items: center;
            font-size: 0.9rem;
        }

        .nav-links a {
            color: var(--text-muted);
            transition: color 0.18s ease, transform 0.18s ease;
        }

        .nav-links a:hover {
            color: var(--accent);
            transform: translateY(-1px);
        }

        .nav-cta {
            padding: 0.4rem 0.9rem;
            border-radius: 999px;
            border: 1px solid rgba(56, 189, 248, 0.5);
            background: radial-gradient(circle at top, rgba(56, 189, 248, 0.15), transparent 60%);
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-strong);
        }

        .menu-toggle {
            display: none;
            border: none;
            background: none;
            color: var(--text-main);
            font-size: 1.4rem;
            cursor: pointer;
        }

        /* Hero */

        .hero {
            padding: 3.5rem 0 2.5rem;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
            gap: 3rem;
            align-items: center;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.25rem 0.8rem;
            border-radius: 999px;
            background: rgba(15, 23, 42, 0.85);
            border: 1px solid rgba(56, 189, 248, 0.3);
            color: var(--accent);
            font-size: 0.75rem;
            margin-bottom: 1.2rem;
        }

        .hero-eyebrow span {
            display: inline-flex;
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: radial-gradient(circle, #4ade80, #22c55e);
            box-shadow: 0 0 10px rgba(34, 197, 94, 0.7);
        }

        .hero-title {
            font-size: clamp(2.1rem, 4vw, 2.9rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.2rem;
        }

        .hero-title span {
            background: linear-gradient(120deg, #38bdf8, #a855f7, #22c55e);
            -webkit-background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            color: var(--text-muted);
            max-width: 32rem;
            font-size: 0.98rem;
            line-height: 1.5;
            margin-bottom: 1.6rem;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-bottom: 2rem;
        }

        .badge {
            font-size: 0.75rem;
            padding: 0.3rem 0.6rem;
            border-radius: 999px;
            background: rgba(15, 23, 42, 0.9);
            border: 1px solid rgba(148, 163, 184, 0.4);
            color: var(--text-muted);
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.3rem;
            border-radius: 999px;
            border: none;
            outline: none;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
            transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
        }

        .btn-primary {
            background: linear-gradient(135deg, #38bdf8, #0ea5e9);
            color: #0b1120;
            box-shadow: 0 12px 35px rgba(56, 189, 248, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 18px 45px rgba(56, 189, 248, 0.55);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(148, 163, 184, 0.6);
            color: var(--text-main);
        }

        .btn-outline:hover {
            background: rgba(15, 23, 42, 0.9);
            transform: translateY(-1px);
        }

        .hero-note {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Hero visual */

        .hero-visual {
            position: relative;
        }

        .hero-card {
            position: relative;
            border-radius: 24px;
            background: radial-gradient(circle at top left, rgba(56,189,248,0.12), transparent 55%), rgba(15, 23, 42, 0.95);
            border: 1px solid rgba(30, 64, 175, 0.9);
            box-shadow: var(--shadow-soft);
            padding: 1.3rem 1.3rem 1.1rem;
            overflow: hidden;
        }

        .hero-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.7rem;
        }

        .hero-card-title {
            font-size: 0.85rem;
            font-weight: 600;
        }

        .hero-card-pill {
            font-size: 0.7rem;
            padding: 0.2rem 0.5rem;
            border-radius: 999px;
            background: rgba(15, 118, 110, 0.2);
            color: #6ee7b7;
            border: 1px solid rgba(45, 212, 191, 0.5);
        }

        .hero-card-body {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 1rem;
            align-items: center;
        }

        .som-preview {
            border-radius: 14px;
            border: 1px solid rgba(30, 64, 175, 0.8);
            background: radial-gradient(circle at top, rgba(56, 189, 248, 0.2), transparent 55%), #020617;
            padding: 0.9rem;
            position: relative;
        }

        .som-preview::before {
            content: "";
            position: absolute;
            inset: -40%;
            background: radial-gradient(circle at top, rgba(59, 130, 246, 0.3), transparent 60%);
            opacity: 0.65;
            pointer-events: none;
        }

        .som-board {
            position: relative;
            border-radius: 12px;
            background: radial-gradient(circle at 30% 15%, #1f2937, #020617 60%);
            border: 1px solid rgba(148, 163, 184, 0.5);
            padding: 0.7rem;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 0.6rem;
        }

        .som-chip {
            width: 90%;
            aspect-ratio: 4/3;
            border-radius: 10px;
            background: radial-gradient(circle at 20% 20%, #0f172a, #020617 80%);
            border: 1px solid rgba(148, 163, 184, 0.7);
            box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .som-chip::after {
            content: "SOM-X1";
            font-weight: 600;
            font-size: 0.7rem;
            letter-spacing: 0.07em;
            color: #e5e7eb;
        }

        .som-pins {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 0.15rem;
            align-content: center;
        }

        .som-pin-row {
            display: flex;
            gap: 0.1rem;
        }

        .som-pin {
            width: 4px;
            height: 5px;
            border-radius: 2px;
            background: rgba(148, 163, 184, 0.95);
        }

        .hero-specs {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-specs dl {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 0.35rem 0.7rem;
        }

        .hero-specs dt {
            color: var(--text-main);
            font-weight: 500;
        }

        .hero-specs dd {
            color: var(--text-muted);
        }

        .hero-card-footer {
            margin-top: 0.8rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .hero-price {
            font-weight: 600;
            color: #4ade80;
        }

        .hero-badge-small {
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            background: rgba(56, 189, 248, 0.06);
            border: 1px dashed rgba(56, 189, 248, 0.5);
            color: var(--accent);
        }

        /* Secciones comunes */

        section {
            padding: 2.5rem 0;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 1.2rem;
            margin-bottom: 1.6rem;
        }

        .section-title {
            font-size: 1.3rem;
            font-weight: 600;
        }

        .section-subtitle {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 28rem;
        }

        .section-tag {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.16em;
            color: var(--accent);
            margin-bottom: 0.25rem;
        }

        /* Catálogo SOMs */

        .modules-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 1.4rem;
        }

        .module-card {
            border-radius: var(--radius-lg);
            background: linear-gradient(to bottom right, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.92));
            border: 1px solid rgba(30, 64, 175, 0.7);
            box-shadow: var(--shadow-soft);
            padding: 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        .module-chip {
            border-radius: 14px;
            background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), rgba(15, 23, 42, 0.95));
            border: 1px solid rgba(148, 163, 184, 0.7);
            padding: 0.7rem;
            margin-bottom: 0.3rem;
        }

        .module-name {
            font-size: 0.98rem;
            font-weight: 600;
        }

        .module-tagline {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .module-specs {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .module-specs ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .module-footer {
            margin-top: 0.3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.6rem;
        }

        .module-price {
            font-size: 0.9rem;
            font-weight: 600;
            color: #4ade80;
        }

        .module-mo {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .module-actions {
            display: flex;
            gap: 0.45rem;
        }

        .btn-xs {
            padding: 0.45rem 0.8rem;
            font-size: 0.78rem;
        }

        /* Features / ventajas */

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 1.3rem;
        }

        .feature-card {
            border-radius: var(--radius-lg);
            background: rgba(15, 23, 42, 0.94);
            border: 1px solid rgba(31, 41, 55, 0.9);
            padding: 1rem;
        }

        .feature-title {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }

        .feature-body {
            font-size: 0.83rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Docs & Support */

        .two-cols {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
            gap: 1.5rem;
        }

        .card {
            border-radius: var(--radius-lg);
            background: rgba(15, 23, 42, 0.94);
            border: 1px solid rgba(31, 41, 55, 0.9);
            padding: 1.1rem;
        }

        .card-title {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }

        .card-text {
            font-size: 0.84rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
        }

        .doc-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            font-size: 0.83rem;
        }

        .doc-list li a {
            color: var(--accent);
        }

        .pill-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.35rem;
            margin-top: 0.4rem;
        }

        .pill {
            font-size: 0.75rem;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            border: 1px solid rgba(148, 163, 184, 0.5);
            color: var(--text-muted);
        }

        /* About us */

        .about-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
            gap: 1.6rem;
        }

        .about-text {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .about-highlight {
            margin-top: 0.8rem;
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 0.9rem;
        }

        .metric {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .metric strong {
            display: block;
            font-size: 1rem;
            color: var(--text-main);
        }

        /* Contact */

        .contact-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
            gap: 1.6rem;
        }

        form {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

        label {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: block;
            margin-bottom: 0.2rem;
        }

        input, textarea, select {
            width: 100%;
            border-radius: 10px;
            border: 1px solid rgba(31, 41, 55, 0.9);
            background: rgba(15, 23, 42, 0.96);
            padding: 0.6rem 0.7rem;
            color: var(--text-main);
            font-family: inherit;
            font-size: 0.85rem;
        }

        input:focus, textarea:focus, select:focus {
            outline: 1px solid rgba(56, 189, 248, 0.6);
            border-color: rgba(56, 189, 248, 0.8);
        }

        textarea {
            resize: vertical;
            min-height: 100px;
        }

        .contact-note {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Footer */

        footer {
            border-top: 1px solid rgba(15, 23, 42, 0.9);
            padding: 1.6rem 0 2rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .footer-links {
            display: flex;
            gap: 0.8rem;
        }

        .footer-links a {
            color: var(--text-muted);
        }

        /* Responsive */

        @media (max-width: 900px) {
            .hero-inner,
            .two-cols,
            .about-layout,
            .contact-grid {
                grid-template-columns: minmax(0, 1fr);
            }

            .hero-inner {
                gap: 2rem;
            }

            .hero {
                padding-top: 2.2rem;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .modules-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .features-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
        }

        @media (max-width: 640px) {
            .nav-links {
                display: none;
                position: absolute;
                right: 1.5rem;
                top: 3.1rem;
                background: rgba(15, 23, 42, 0.98);
                border-radius: 14px;
                padding: 0.8rem 1rem;
                flex-direction: column;
                align-items: flex-start;
                box-shadow: var(--shadow-soft);
                border: 1px solid rgba(30, 64, 175, 0.8);
            }

            .nav-links.open {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            .modules-grid,
            .features-grid {
                grid-template-columns: minmax(0, 1fr);
            }

            .about-highlight {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
        }