/* ═══════════════════════════════════════════
           CSS VARIABLES — PATITAS DESIGN SYSTEM
        ═══════════════════════════════════════════ */
        :root {
            --bg-deep: #0a0e17;
            --bg-surface: #121a2b;
            --bg-card: #1a2340;
            --bg-card-hover: #1f2b4d;
            --patitas-red: #e74c3c;
            --patitas-red-glow: rgba(231, 76, 60, 0.35);
            --multimeter-yellow: #f1c40f;
            --yellow-glow: rgba(241, 196, 15, 0.25);
            --circuit-blue: #004b8d;
            --circuit-blue-light: #1e3a5f;
            --ocean-blue: #2980b9;
            --sky-blue: #aed6f1;
            --orange: #e67e22;
            --orange-deep: #d35400;
            --green: #2ecc71;
            --text-primary: #ecf0f1;
            --text-muted: #7f8c8d;
            --text-dim: #546a7b;
            --border-subtle: rgba(255,255,255,0.06);
            --border-accent: rgba(241,196,15,0.2);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --font-display: 'Outfit', sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
        }

        /* ═══════════════════════════════════════════
           RESET & BASE
        ═══════════════════════════════════════════ */
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

        html {
            scroll-behavior: smooth;
            scrollbar-width: thin;
            scrollbar-color: var(--circuit-blue) var(--bg-deep);
        }

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

        /* ═══════════════════════════════════════════
           AMBIENT BACKGROUND EFFECTS
        ═══════════════════════════════════════════ */
        .bg-grid {
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background-image:
                linear-gradient(rgba(0,75,141,0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0,75,141,0.04) 1px, transparent 1px);
            background-size: 60px 60px;
        }

        .bg-glow {
            position: fixed;
            width: 600px; height: 600px;
            border-radius: 50%;
            filter: blur(180px);
            pointer-events: none;
            z-index: 0;
            opacity: 0.5;
        }

        .bg-glow--yellow {
            background: var(--multimeter-yellow);
            top: -200px; right: -100px;
            opacity: 0.08;
        }

        .bg-glow--red {
            background: var(--patitas-red);
            bottom: -300px; left: -200px;
            opacity: 0.06;
        }

        .bg-glow--blue {
            background: var(--circuit-blue);
            top: 50%; left: 50%;
            transform: translate(-50%, -50%);
            opacity: 0.07;
        }

        /* ═══════════════════════════════════════════
           NAVIGATION
        ═══════════════════════════════════════════ */
        .navbar {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 9999;
            padding: 0 clamp(16px, 4vw, 48px);
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(10,14,23,0.82);
            backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid var(--border-subtle);
            overflow: visible; /* permite que el submenú de Narratrónica se muestre */
            transition: height 0.35s cubic-bezier(0.4,0,0.2,1),
                        background 0.3s, box-shadow 0.3s,
                        border-color 0.3s;
        }

        .navbar.scrolled {
            background: rgba(10,14,23,0.95);
            box-shadow: 0 4px 30px rgba(0,0,0,0.4);
        }

        /* ── NAVBAR AUTO-HIDE (simulator mode) ───── */

        .navbar.sim-collapsed {
            height: 5px;
            overflow: hidden; /* recorta el contenido solo al colapsar en el simulador */
            border-bottom: 2px solid var(--multimeter-yellow);
            background: rgba(10,14,23,0.6);
            box-shadow: 0 0 20px var(--yellow-glow);
            pointer-events: none; /* let the hover-zone handle it */
        }

        .navbar.sim-collapsed * {
            opacity: 0;
            transition: opacity 0.15s ease;
        }

        .navbar.sim-expanded {
            height: 64px;
            pointer-events: auto;
        }

        .navbar.sim-expanded * {
            opacity: 1;
            transition: opacity 0.25s ease 0.1s;
        }

        /* Invisible hover zone at top of screen to trigger expand */
        .nav-hover-zone {
            position: fixed;
            top: 0; left: 0; right: 0;
            height: 26px; /* algo más alto para tocar fácil en tablet */
            z-index: 10000;
            display: none;
            cursor: default;
        }

        .nav-hover-zone.active {
            display: block;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            cursor: pointer;
        }

        .nav-brand svg { flex-shrink: 0; }

        .nav-brand-text {
            font-weight: 800;
            font-size: 1.25rem;
            background: linear-gradient(135deg, var(--multimeter-yellow), var(--patitas-red));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }

        .nav-brand-version {
            font-size: 0.65rem;
            font-family: var(--font-mono);
            color: var(--text-dim);
            margin-left: -4px;
            margin-top: 4px;
        }

        .nav-links {
            display: flex;
            gap: 4px;
            list-style: none;
            align-items: center;
        }

        .nav-link {
            padding: 8px 13px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-muted);
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.01em;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(241,196,15,0.15);
            text-shadow: 0 0 8px rgba(241,196,15,1),
                         0 0 20px rgba(241,196,15,0.8),
                         0 0 40px rgba(241,196,15,0.4);
            box-shadow: 0 0 10px rgba(241,196,15,0.5),
                         0 0 25px rgba(241,196,15,0.35),
                         0 0 50px rgba(241,196,15,0.2),
                         0 0 80px rgba(241,196,15,0.1),
                         inset 0 0 15px rgba(241,196,15,0.12);
            transform: scale(1.08);
        }

        .nav-link.active {
            color: var(--multimeter-yellow);
            background: rgba(241,196,15,0.15);
            text-shadow: 0 0 15px rgba(241,196,15,1);
            box-shadow: 0 0 12px rgba(241,196,15,0.2) inset;
        }

        .nav-cta {
            padding: 8px 20px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--orange), var(--orange-deep));
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            box-shadow: 0 4px 15px rgba(230,126,34,0.3);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(230,126,34,0.5);
        }

        /* Mobile menu */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: 0.3s;
        }

        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-links {
                position: fixed;
                top: 64px; left: 0; right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(10,14,23,0.97);
                backdrop-filter: blur(20px);
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-subtle);
                transform: translateY(-120%);
                transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
            }
            .nav-links.open { transform: translateY(0); }
            .nav-link { padding: 14px 18px; font-size: 1rem; }
        }

        /* ── Narratrónica dropdown ── */
        .nav-dropdown { position: relative; }
        .nav-dropdown-toggle { display: inline-flex; align-items: center; gap: 5px; }
        .nav-caret { font-size: 0.65em; opacity: 0.75; transition: transform 0.25s ease; }
        .nav-dropdown.open .nav-caret { transform: rotate(180deg); }
        .nav-submenu {
            display: none;
            position: absolute;
            top: 100%;
            padding-top: 12px;
            left: 0;
            min-width: 220px;
            list-style: none;
            padding: 8px;
            margin: 0;
            background: rgba(10,14,23,0.98);
            backdrop-filter: blur(20px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            box-shadow: 0 14px 40px rgba(0,0,0,0.5), 0 0 22px rgba(241,196,15,0.08);
            z-index: 1200;
        }
        .nav-dropdown.open .nav-submenu,
        .nav-dropdown:hover .nav-submenu { display: block; animation: narraFade 0.2s ease; }
        @keyframes narraFade { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
        .nav-submenu li { list-style: none; margin: 0; }
        .nav-submenu .nav-link { display: block; padding: 11px 14px; white-space: nowrap; }

        @media (max-width: 768px) {
            .nav-submenu {
                position: static;
                display: block;
                background: transparent;
                border: none;
                box-shadow: none;
                backdrop-filter: none;
                padding: 2px 0 6px 14px;
                min-width: 0;
            }
            .nav-dropdown .nav-caret { display: none; }
        }

        /* ═══════════════════════════════════════════
           PAGE SECTIONS (SPA-like)
        ═══════════════════════════════════════════ */
        .page {
            display: none;
            min-height: 100vh;
            padding-top: 64px;
            position: relative;
            z-index: 1;
        }

        .page.active { display: block; }

        .page--simulator {
            padding-top: 64px;
            display: none;
            transition: padding-top 0.35s cubic-bezier(0.4,0,0.2,1);
        }

        .page--simulator.nav-hidden {
            padding-top: 5px;
        }

        .page--simulator.active {
            display: flex;
            flex-direction: column;
            height: 100vh;
        }

        /* ═══════════════════════════════════════════
           HOME — HERO SECTION
        ═══════════════════════════════════════════ */
        .hero {
            min-height: calc(100vh - 64px);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 60px clamp(20px, 6vw, 80px);
            position: relative;
            overflow: hidden;
        }

        /* ── Hero video background ──────────────── */
        .hero-video-wrap {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(900px, 94vw);
            aspect-ratio: 16/9;
            border-radius: 0 0 24px 24px;
            overflow: hidden;
            opacity: 0.32;
            filter: blur(0.5px) saturate(1.4) brightness(1.1);
            z-index: 0;
            pointer-events: none;
            mask-image: linear-gradient(to bottom, black 30%, transparent 95%);
            -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 95%);
        }

        .hero-video-wrap video {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
            opacity: 0;
            transition: opacity 1.5s ease-in-out;
            display: block;
        }

        .hero-video-wrap video.active {
            opacity: 1;
        }

        /* Glowing border effect around video area */
        .hero-video-wrap::after {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 0 0 26px 26px;
            border: 1px solid rgba(241,196,15,0.12);
            border-top: none;
            pointer-events: none;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 40%, rgba(0,75,141,0.15) 0%, transparent 70%);
            pointer-events: none;
            z-index: 1;
        }

        /* All hero direct children above video */
        .hero > *:not(.hero-video-wrap) {
            position: relative;
            z-index: 2;
        }

        .hero-mascot {
            position: fixed;
            bottom: 30px;
            right: 30px;
            margin-bottom: 0;
            z-index: 9999;
            animation: mascotFloat 4s ease-in-out infinite;
            filter: drop-shadow(0 10px 20px rgba(0,0,0,0.4));
            transition: opacity 0.3s;
        }

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

        .mascot-body {
            width: 80px; height: 90px;
            background: var(--patitas-red);
            border-radius: 40px 40px 10px 10px;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow:
                inset -8px -10px 20px rgba(0,0,0,0.25),
                0 0 40px var(--patitas-red-glow),
                0 0 80px rgba(231,76,60,0.15);
        }

        .mascot-eye {
            width: 22px; height: 22px;
            background: #fff;
            border-radius: 50%;
            margin: 0 7px;
            box-shadow: 0 0 5px rgba(0,0,0,0.4);
            position: relative;
            animation: mascotBlink 3s infinite;
        }

        .mascot-eye::after {
            content: '';
            position: absolute;
            width: 9px; height: 9px;
            background: #222;
            border-radius: 50%;
            top: 6.5px; left: 6.5px;
            transform: translate(var(--eye-x, 0px), var(--eye-y, 0px));
            transition: transform 0.1s ease-out;
        }

        @keyframes mascotBlink {
            0%, 90%, 100% { transform: scaleY(1); }
            95% { transform: scaleY(0.1); }
        }

        .mascot-smile {
            position: absolute;
            bottom: 18px;
            width: 26px; height: 13px;
            border-bottom: 4px solid #fff;
            border-radius: 50%;
            animation: mascotSmileAnim 3s infinite;
        }

        @keyframes mascotSmileAnim {
            0%, 90%, 100% { transform: scale(1); border-bottom-width: 4px; }
            95% { transform: scaleX(1.7) scaleY(1.5) translateY(-4px); border-bottom-width: 8px; }
        }

        .mascot-legs {
            display: flex;
            justify-content: space-between;
            width: 56px;
            margin: -3px auto 0;
        }

        .mascot-leg {
            width: 8px;
            background: #bdc3c7;
            border-radius: 4px;
        }

        .mascot-leg--long { height: 36px; }
        .mascot-leg--short { height: 26px; }

        .mascot-shoe {
            width: 20px; height: 10px;
            border-radius: 5px;
            margin-top: -2px;
            margin-left: -6px;
        }

        .mascot-shoe--red { background: var(--patitas-red); box-shadow: 0 3px 6px rgba(0,0,0,0.3); }
        .mascot-shoe--black { background: #111; box-shadow: 0 3px 6px rgba(0,0,0,0.3); }

        /* Hero text */
        .hero-badge {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--multimeter-yellow);
            background: rgba(241,196,15,0.1);
            border: 1px solid rgba(241,196,15,0.2);
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 24px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.5rem);
            font-weight: 900;
            line-height: 1.05;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--multimeter-yellow) 0%, var(--orange) 50%, var(--patitas-red) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: clamp(1rem, 2.2vw, 1.25rem);
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 40px;
            font-weight: 300;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-primary {
            padding: 14px 36px;
            border-radius: var(--radius-xl);
            background: linear-gradient(135deg, var(--orange), var(--orange-deep));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: transform 0.25s, box-shadow 0.25s;
            box-shadow: 0 6px 25px rgba(230,126,34,0.35);
            text-decoration: none;
            font-family: var(--font-display);
        }

        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 10px 40px rgba(230,126,34,0.5);
        }

        .btn-secondary {
            padding: 14px 36px;
            border-radius: var(--radius-xl);
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid rgba(255,255,255,0.15);
            cursor: pointer;
            transition: all 0.25s;
            text-decoration: none;
            font-family: var(--font-display);
        }

        .btn-secondary:hover {
            border-color: var(--multimeter-yellow);
            color: var(--multimeter-yellow);
            background: rgba(241,196,15,0.05);
        }

        /* ═══════════════════════════════════════════
           FEATURE CARDS (QUÉ ES / QUÉ NO ES)
        ═══════════════════════════════════════════ */
        .features-section {
            padding: 80px clamp(20px, 6vw, 80px);
            max-width: 1200px;
            margin: 0 auto;
        }

        .features-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            text-align: center;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .features-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 56px;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .feature-col h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .feature-col h3 .icon-circle {
            width: 40px; height: 40px;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .icon-circle--green { background: rgba(46,204,113,0.15); color: var(--green); }
        .icon-circle--red { background: rgba(231,76,60,0.15); color: var(--patitas-red); }

        .feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-list li {
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            font-size: 0.95rem;
            line-height: 1.6;
            transition: transform 0.2s, border-color 0.2s;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .feature-list li:hover {
            transform: translateX(4px);
            border-color: var(--border-accent);
        }

        .feature-list li .li-icon {
            flex-shrink: 0;
            font-size: 1.1rem;
            margin-top: 1px;
        }

        .patitas-accordion {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-top: 10px;
            transition: all 0.3s ease;
            align-self: start;
        }

        .patitas-accordion summary {
            padding: 20px 24px;
            font-size: 1.15rem;
            font-weight: 700;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            transition: background 0.2s;
        }

        .patitas-accordion summary::-webkit-details-marker {
            display: none;
        }

        .patitas-accordion summary::after {
            content: '▼';
            font-size: 0.9rem;
            color: var(--multimeter-yellow);
            transition: transform 0.3s ease;
        }

        .patitas-accordion[open] summary::after {
            transform: rotate(180deg);
        }

        .patitas-accordion summary:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .patitas-accordion .feature-col {
            padding: 0 24px 24px;
            border-top: 1px solid var(--border-subtle);
            margin-top: 0;
            padding-top: 24px;
        }

        /* ═══════════════════════════════════════════
           TECH SPECS STRIP
        ═══════════════════════════════════════════ */
        .tech-strip {
            padding: 60px clamp(20px, 6vw, 80px);
            background: linear-gradient(180deg, transparent, rgba(0,75,141,0.06), transparent);
        }

        .tech-grid {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }

        .tech-card {
            text-align: center;
            padding: 28px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            background: var(--bg-surface);
            transition: border-color 0.3s, transform 0.3s;
        }

        .tech-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-4px);
        }

        .tech-card .tech-num {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--multimeter-yellow), var(--orange));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .tech-card .tech-label {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-top: 4px;
        }

        /* ═══════════════════════════════════════════
           SIMULATOR PAGE
        ═══════════════════════════════════════════ */
        .sim-frame {
            flex: 1;
            width: 100%;
            border: none;
        }

        /* ═══════════════════════════════════════════
           CIRCUITS PAGE
        ═══════════════════════════════════════════ */
        .section-page {
            padding: 30px clamp(20px, 6vw, 80px) 40px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-page h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }

        .section-page .page-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.5;
            max-width: 1000px;
            margin-bottom: 12px;
        }

        .circuits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .circuit-card {
            background: var(--bg-card);
            position: relative;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden; /* For image header rounded corners */
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
            display: flex;
            flex-direction: column;
        }

        .circuit-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 100%;
            height: 240px;
            background: linear-gradient(to bottom, #624F06, #F1C40F);
            pointer-events: none;
            z-index: 0;
        }

        .circuit-card > * {
            position: relative;
            z-index: 1;
        }

        .circuit-card-img {
            width: 200px;
            height: 200px;
            margin: 24px auto 0 auto;
            border-radius: 50%;
            object-fit: cover;
            object-position: center;
            background: #fff;
            border: 2px solid #FFD700; /* Amarillo brillante */
            box-shadow: 0 0 15px rgba(255,215,0,0.6), 0 0 30px rgba(255,215,0,0.3);
            display: block;
        }

        .circuit-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            flex: 1;
        }

        .circuit-card:hover {
            transform: translateY(-4px);
            border-color: var(--multimeter-yellow);
            box-shadow: 0 8px 30px rgba(241,196,15,0.08);
            cursor: pointer;
        }

        .circuit-card .card-tag {
            font-family: var(--font-mono);
            font-size: 0.7rem;
            color: #F1C40F; /* Amarillo */
            background: #AA8A0A; /* Marrón */
            padding: 4px 10px;
            border-radius: 100px;
            width: fit-content;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-weight: 700;
        }

        .circuit-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }

        .circuit-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
        }

        .circuit-card-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: auto;
        }

        .circuit-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--ocean-blue);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: color 0.2s, gap 0.2s;
            padding: 8px 12px;
            background: rgba(41, 128, 185, 0.1);
            border-radius: var(--radius-sm);
            width: fit-content;
        }

        .circuit-card .card-link:hover {
            color: var(--sky-blue);
            background: rgba(41, 128, 185, 0.2);
            gap: 12px;
        }

        .circuit-card .card-link svg {
            transition: transform 0.2s;
        }

        .circuit-card .card-link:hover svg {
            transform: translateX(3px);
        }

        /* ═══════════════════════════════════════════
           VIDEOS PAGE
        ═══════════════════════════════════════════ */
        .videos-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }

        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
        }

        .video-card:hover {
            transform: translateY(-4px);
            border-color: var(--patitas-red);
            box-shadow: 0 8px 30px rgba(231,76,60,0.1);
        }

        .video-card .video-embed {
            width: 100%;
            aspect-ratio: 16/9;
            border: none;
        }

        .video-card .video-info {
            padding: 20px;
        }

        .video-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .video-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        /* ═══════════════════════════════════════════
           PROGRAMMING PAGE
        ═══════════════════════════════════════════ */
        .prog-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .prog-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .prog-card:hover {
            transform: translateY(-4px);
            border-color: var(--green);
            box-shadow: 0 8px 30px rgba(46,204,113,0.1);
        }

        .prog-card .card-tag {
            font-family: var(--font-mono);
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: 100px;
            width: fit-content;
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }

        .prog-card .card-tag--blockly {
            color: var(--green);
            background: rgba(46,204,113,0.1);
        }

        .prog-card .card-tag--advanced {
            color: var(--orange);
            background: rgba(230,126,34,0.1);
        }

        .prog-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }

        .prog-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
        }

        .prog-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--green);
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: color 0.2s, gap 0.2s;
        }

        .prog-card .card-link:hover {
            color: #58d68d;
            gap: 12px;
        }

        /* Blockly icon in cards */
        .prog-card .blockly-preview {
            height: 60px;
            background: linear-gradient(135deg, rgba(46,204,113,0.06), rgba(241,196,15,0.04));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            overflow: hidden;
        }

        .block-piece {
            height: 22px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            padding: 0 10px;
            font-family: var(--font-mono);
            font-size: 0.6rem;
            color: #fff;
            font-weight: 600;
            white-space: nowrap;
        }

        .block-piece--blue { background: #5b80a5; }
        .block-piece--green { background: #5ba55b; }
        .block-piece--yellow { background: #c4a900; }
        .block-piece--purple { background: #8b5ba5; }
        .block-piece--orange { background: #c47a00; }

        /* ═══════════════════════════════════════════
           FEEDBACK PAGE
        ═══════════════════════════════════════════ */
        .feedback-container {
            padding: 100px clamp(20px, 6vw, 80px) 80px;
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .feedback-container h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .feedback-container .page-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 600px;
            margin: 0 auto 40px;
        }

        .form-frame-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0,0,0,0.3);
        }

        .form-frame-wrapper iframe {
            width: 100%;
            height: 1100px;
            border: none;
        }

        /* ═══════════════════════════════════════════
           FOOTER
        ═══════════════════════════════════════════ */
        .site-footer {
            padding: 40px clamp(20px, 6vw, 80px);
            border-top: 1px solid var(--border-subtle);
            text-align: center;
            color: var(--text-dim);
            font-size: 0.85rem;
        }

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

        .site-footer a:hover { color: var(--multimeter-yellow); }

        /* ═══════════════════════════════════════════
           SCROLL REVEAL ANIMATION
        ═══════════════════════════════════════════ */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s cubic-bezier(0.25,0.46,0.45,0.94),
                        transform 0.7s cubic-bezier(0.25,0.46,0.45,0.94);
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* stagger children */
        .stagger > * {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .stagger.visible > *:nth-child(1) { transition-delay: 0.05s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(2) { transition-delay: 0.12s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(3) { transition-delay: 0.19s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(4) { transition-delay: 0.26s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(5) { transition-delay: 0.33s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(6) { transition-delay: 0.40s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(7) { transition-delay: 0.47s; opacity:1; transform:translateY(0); }
        .stagger.visible > *:nth-child(8) { transition-delay: 0.54s; opacity:1; transform:translateY(0); }

        /* ═══════════════════════════════════════════
           EMPTY STATE (for placeholder sections)
        ═══════════════════════════════════════════ */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-dim);
        }

        .empty-state svg {
            margin-bottom: 16px;
            opacity: 0.4;
        }

        .empty-state p {
            font-size: 1rem;
        }

        /* ═══════════════════════════════════════════
           INSTRUCTION CALLOUT
        ═══════════════════════════════════════════ */
        .callout {
            background: rgba(241,196,15,0.06);
            border: 1px dashed rgba(241,196,15,0.25);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 32px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .callout code {
            font-family: var(--font-mono);
            background: rgba(255,255,255,0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.82rem;
            color: var(--multimeter-yellow);
        }

        /* ═══════════════════════════════════════════
           RESPONSIVE
        ═══════════════════════════════════════════ */
        @media (max-width: 480px) {
            .features-grid { grid-template-columns: 1fr; }
            .circuits-grid { grid-template-columns: 1fr; }
            .videos-grid { grid-template-columns: 1fr; }
            .prog-grid { grid-template-columns: 1fr; }
            .hero h1 { font-size: 2rem; }
        }

        /* ═══════════════════════════════════════════
           SIMULATOR LOADER
        ═══════════════════════════════════════════ */
        .sim-loader {
            position: absolute;
            inset: 0;
            z-index: 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--bg-deep);
            transition: opacity 0.5s ease;
        }

        .sim-loader.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .loader-spinner {
            width: 48px;
            height: 48px;
            border: 4px solid var(--border-subtle);
            border-top-color: var(--multimeter-yellow);
            border-radius: 50%;
            animation: loaderSpin 1s linear infinite;
        }

        @keyframes loaderSpin { 
            to { transform: rotate(360deg); } 
        }

        /* ═══════════════════════════════════════════
           ROADMAP
        ═══════════════════════════════════════════ */
        .roadmap-image-container {
            width: 100%;
            max-width: 1000px; /* Alargado */
            margin: 0 auto 3rem auto;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-subtle);
            background-color: rgba(0, 0, 0, 0.2); /* Fondo sutil para el espacio libre */
        }

        .roadmap-image {
            width: 100%;
            height: 350px; /* Achicado en alto (banner) */
            object-fit: contain; /* Muestra toda la imagen sin recortar */
            object-position: center center;
            display: block;
            transition: transform 0.5s ease;
        }
        
        .roadmap-image-container:hover .roadmap-image {
            transform: scale(1.02);
        }

        .roadmap-timeline {
            display: flex;
            flex-direction: column;
            gap: 24px;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .roadmap-timeline::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(to bottom, var(--circuit-blue), var(--patitas-red));
            opacity: 0.5;
            z-index: 0;
        }

        .roadmap-item {
            display: flex;
            gap: 20px;
            position: relative;
            z-index: 1;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .roadmap-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            border-color: var(--border-accent);
        }

        .roadmap-number {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 2px solid var(--circuit-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--multimeter-yellow);
            flex-shrink: 0;
            box-shadow: 0 0 15px rgba(0, 75, 141, 0.5);
            margin-left: -6px; /* align with the timeline line */
        }

        .roadmap-content h3 {
            color: var(--text-primary);
            font-size: 1.25rem;
            margin-bottom: 8px;
        }

        .roadmap-content p {
            color: var(--text-dim);
            line-height: 1.6;
            font-size: 0.95rem;
        }

        @media (max-width: 600px) {
            .roadmap-timeline::before {
                left: 20px;
            }
            .roadmap-item {
                flex-direction: column;
                padding: 15px;
                gap: 15px;
            }
            .roadmap-number {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
                margin-left: -5px;
            }
        }

        /* ═══════════════════════════════════════════
           LESSON MODAL
        ═══════════════════════════════════════════ */
        .modal-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(10, 14, 23, 0.85);
            backdrop-filter: blur(10px);
            z-index: 10000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            padding: 20px;
        }

        .modal-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-container {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            width: 100%;
            max-width: 900px;
            max-height: 90vh;
            overflow-y: auto;
            transform: scale(0.05); /* Very exaggerated start */
            transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            position: relative;
        }

        .modal-overlay.active .modal-container {
            transform: scale(1);
        }

        .modal-header {
            position: sticky;
            top: 0;
            background: rgba(26, 35, 64, 0.95);
            backdrop-filter: blur(10px);
            padding: 20px 30px;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 10;
            border-top-left-radius: var(--radius-lg);
            border-top-right-radius: var(--radius-lg);
        }

        .modal-header h2 {
            font-size: 1.5rem;
            color: var(--text-primary);
            margin: 0;
        }

        .modal-close {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 2rem;
            cursor: pointer;
            line-height: 1;
            transition: color 0.2s;
        }

        .modal-close:hover {
            color: var(--patitas-red);
        }

        .modal-body {
            padding: 30px;
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .modal-body h3 {
            color: var(--text-primary);
            font-size: 1.5rem;
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .modal-body p {
            margin-bottom: 1.5rem;
        }

        .modal-body img.modal-img-full {
            max-width: 100%; /* In grid, take full cell width */
            max-height: 350px;
            width: auto;
            height: 100%;
            display: block;
            margin: 0 auto;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            object-fit: contain;
            background: rgba(0,0,0,0.1);
        }

        .modal-img-cover {
            object-fit: cover !important;
            width: 100% !important;
        }

        .modal-img-stretch {
            object-fit: fill !important; /* Force stretch horizontally and vertically */
            width: 100% !important;
            height: 100% !important;
            max-height: 350px !important;
        }

        .zoom-container {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            cursor: pointer;
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .zoom-overlay {
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none; /* Let clicks pass to container */
        }

        .zoom-container:hover .zoom-overlay {
            opacity: 1;
        }

        #imageZoomModal {
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 999999 !important;
            background: rgba(0, 0, 0, 0.4) !important; /* more transparent */
            backdrop-filter: blur(2px) !important;
        }

        .zoom-modal-container {
            position: relative;
            max-width: 90%;
            max-height: 90vh;
            border-radius: var(--radius-md);
            box-shadow: 0 20px 50px rgba(0,0,0,0.8);
            transform: scale(0.01) rotate(15deg);
            transition: transform 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: 3px solid rgba(255, 255, 255, 0.2);
            background: #fff;
            display: flex;
        }

        #imageZoomModal.active .zoom-modal-container {
            transform: scale(1) rotate(0deg);
        }

        .zoom-modal-container img,
        .zoom-modal-container video {
            max-width: 100%;
            max-height: calc(90vh - 6px); /* account for border */
            border-radius: calc(var(--radius-md) - 3px);
            object-fit: contain;
        }

        .zoom-html-content {
            background: #2a2215;
            color: #f4f4f4;
            max-width: 800px;
            max-height: calc(90vh - 6px);
            overflow-y: auto;
            border-radius: calc(var(--radius-md) - 3px);
            padding: 30px;
        }
        
        .zoom-html-content::-webkit-scrollbar {
            width: 8px;
        }
        .zoom-html-content::-webkit-scrollbar-track {
            background: rgba(0,0,0,0.2);
            border-radius: 4px;
        }
        .zoom-html-content::-webkit-scrollbar-thumb {
            background: var(--patitas-red);
            border-radius: 4px;
        }

        .modal-close-zoom {
            position: absolute;
            top: -20px;
            right: -20px;
            font-size: 2.5rem;
            color: white;
            cursor: pointer;
            z-index: 100;
            background: var(--patitas-red);
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid white;
            box-shadow: 0 4px 10px rgba(0,0,0,0.5);
            transition: transform 0.2s ease;
            line-height: 1;
        }

        .modal-close-zoom:hover {
            transform: scale(1.1);
        }

        .modal-img-fixed-height {
            height: 250px !important;
            object-fit: cover !important;
            width: 100% !important;
        }

        .modal-img-contain-fixed {
            height: 250px !important;
            object-fit: contain !important;
            width: 100% !important;
        }

        .modal-two-columns {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 25px 0;
            align-items: stretch;
        }
        
        .modal-column {
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            height: 100%;
        }

        .modal-download-box {
            text-align: center;
            margin: 15px 0;
            padding: 15px;
            background: rgba(43, 219, 219, 0.05);
            border: 1px dashed var(--patitas-cyan);
            border-radius: var(--radius-md);
            margin-top: auto; /* Push to bottom to align horizontally */
        }

        .download-btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--patitas-cyan) 0%, var(--patitas-green) 100%);
            color: #ffff00 !important; /* Bright yellow */
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8), 0 0 8px rgba(255, 255, 0, 0.5); /* Shadows for visibility */
            padding: 10px 20px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 0.95rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 10px rgba(43, 219, 219, 0.3);
            text-align: center;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(43, 219, 219, 0.5);
            color: #ffff00 !important;
            text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.9), 0 0 10px rgba(255, 255, 0, 0.8);
        }

        @media (max-width: 768px) {
            .modal-two-columns {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        
        .modal-body h3:first-child {
            margin-top: 0;
        }

        .modal-body p {
            margin-bottom: 20px;
            color: var(--text-dim);
        }

        .modal-img-full {
            width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin-bottom: 20px;
            border: 1px solid var(--border-subtle);
        }

        /* YouTube Responsive iFrame Container */
        .video-responsive {
            position: relative;
            padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
            height: 0;
            overflow: hidden;
            border-radius: var(--radius-md);
            margin-bottom: 30px;
            border: 1px solid var(--border-subtle);
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }

        .video-responsive iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        /* Custom Scrollbar for Modal */
        .modal-container::-webkit-scrollbar {
            width: 8px;
        }
        .modal-container::-webkit-scrollbar-track {
            background: var(--bg-card);
            border-top-right-radius: var(--radius-lg);
            border-bottom-right-radius: var(--radius-lg);
        }
        .modal-container::-webkit-scrollbar-thumb {
            background: var(--circuit-blue);
            border-radius: 4px;
        }


/* ── Recursos (Tienda de Patitas) ── */
.card-tag-free { background: #14532d !important; color: #4ade80 !important; }
.recurso-precio { font-size: 1.4rem; font-weight: 800; color: var(--multimeter-yellow, #F1C40F); }
.recurso-precio span { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.recurso-botones { display: flex; flex-direction: column; gap: 8px; margin-top: auto; }
.btn-demo, .btn-mp, .btn-mail {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 14px; border-radius: 10px; font-weight: 700; font-size: 0.9rem;
    cursor: pointer; text-decoration: none; transition: transform .15s, filter .15s;
}
.btn-demo { background: rgba(41,128,185,.15); color: var(--sky-blue, #5dade2); border: 1px solid rgba(41,128,185,.4); }
.btn-mp { background: linear-gradient(135deg, #009ee3, #0074c2); color: #fff; }
.btn-gratis { background: linear-gradient(135deg, #16a34a, #15803d); }
.btn-mail { background: rgba(255,255,255,.06); color: var(--text-muted); border: 1px dashed rgba(255,255,255,.25); font-weight: 600; }
.btn-demo:hover, .btn-mp:hover, .btn-mail:hover { transform: translateY(-2px); filter: brightness(1.12); }
.recurso-card:hover { cursor: default; }
.compra-pasos { margin-top: 40px; }
.compra-pasos h3 { margin-bottom: 16px; }
.compra-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.alias-chip { font-family: var(--font-mono); background: rgba(241,196,15,.12); color: #F1C40F; padding: 2px 10px; border-radius: 100px; cursor: pointer; white-space: nowrap; }
.recursos-nota { color: var(--text-muted); font-size: 0.9rem; margin-top: 18px; }
#demo-modal { position: fixed; inset: 0; background: rgba(0,0,0,.85); display: none; align-items: center; justify-content: center; z-index: 9999; padding: 20px; }
#demo-modal.open { display: flex; }
.demo-box { position: relative; width: min(860px, 100%); }
.demo-box video { width: 100%; border-radius: 14px; box-shadow: 0 20px 60px rgba(0,0,0,.6); background: #000; }
.demo-close { position: absolute; top: -14px; right: -14px; width: 36px; height: 36px; border-radius: 50%; border: none; background: var(--patitas-red, #e74c3c); color: #fff; font-size: 1rem; cursor: pointer; z-index: 2; }


/* ── Móvil: el panel del menú nunca se corta (10 ítems + submenú) ── */
@media (max-width: 768px) {
    .nav-links {
        max-height: calc(100vh - 64px);
        max-height: calc(100dvh - 64px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}