/* ==============================================================================
   RTMS — Real-Time Multicam System
   Landing Page Oficial & Centro de Descarga
   Diseñado por Joaquín Yarsky (joaquinyarsky@gmail.com)
   Estética y paleta alineadas con el panel de control nativo de RTMS.
============================================================================== */

:root {
    color-scheme: dark;
    --bg-dark: #0b0f19;
    --panel-bg: #111827;
    --card-bg: #161f30;
    --card-hover: #1c273c;
    --card-subtle: rgba(31, 41, 55, 0.5);
    
    --border-color: rgba(20, 184, 166, 0.18);
    --border-color-active: rgba(20, 184, 166, 0.45);
    --border-blue: rgba(56, 189, 248, 0.22);
    --border-subtle: rgba(255, 255, 255, 0.08);

    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #9ca3af;

    --teal: #14b8a6;
    --teal-hover: #0d9488;
    --teal-glow: rgba(20, 184, 166, 0.35);

    --cyan: #38bdf8;
    --cyan-glow: rgba(56, 189, 248, 0.3);

    --blue: #3b82f6;
    --blue-glow: rgba(59, 130, 246, 0.25);

    --status-green: #10b981;
    --status-yellow: #f59e0b;
    --status-red: #ef4444;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 25px rgba(20, 184, 166, 0.25);
    --shadow-blue-glow: 0 0 30px rgba(56, 189, 248, 0.2);

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, system-ui, sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;

    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.25s cubic-bezier(0.16, 1, 0.3, 1);

    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
    overflow-x: hidden;
    max-width: 100%;
}

/* ACCESSIBILITY: Screen Reader Only Utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ACCESSIBILITY: Skip Link para navegación accesible por teclado */
.skip-link {
    position: absolute;
    top: -120px;
    left: 20px;
    background: var(--teal);
    color: #0b0f19;
    padding: 12px 22px;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    z-index: 99999;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.7);
    transition: top 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.skip-link:focus-visible,
.skip-link:focus {
    top: 16px;
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
}

*:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
}

*:focus {
    outline: none;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    max-width: 100%;
    position: relative;
    padding-top: 64px;
    background-image: 
        radial-gradient(circle at 50% -10%, rgba(20, 184, 166, 0.12) 0%, transparent 60%),
        radial-gradient(circle at 90% 40%, rgba(56, 189, 248, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 10% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Background grid pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    pointer-events: none;
    z-index: -1;
}

/* CONTAINER */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* NAVBAR (Fijo en todo momento con elevación dinámica) */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(11, 15, 25, 0.88);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.navbar.scrolled {
    background: rgba(11, 15, 25, 0.96);
    border-bottom-color: var(--border-color-active);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.55), 0 0 20px rgba(20, 184, 166, 0.12);
}

.navbar-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 64px;
    width: 100%;
    padding: 0 clamp(20px, 3.5vw, 48px);
    box-sizing: border-box;
}

.brand {
    justify-self: start;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: opacity 0.2s ease;
}

.brand:hover {
    opacity: 0.92;
}

.brand-logo-svg {
    width: 34px;
    height: 34px;
    filter: drop-shadow(0 0 8px rgba(20, 184, 166, 0.45));
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), filter 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.brand:hover .brand-logo-svg {
    transform: rotate(18deg) scale(1.08);
    filter: drop-shadow(0 0 14px rgba(56, 189, 248, 0.6));
}

.footer-logo-svg {
    width: 22px;
    height: 22px;
}

.brand-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    line-height: 1;
}

.brand-top {
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1;
}

.brand-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #ffffff;
    line-height: 1;
}

.version-pill {
    font-size: 0.68rem;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--teal);
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid rgba(20, 184, 166, 0.32);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    line-height: 1.2;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.brand-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
    line-height: 1.1;
    white-space: nowrap;
}


nav[aria-label="Navegación principal"] {
    justify-self: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(14px, 1.8vw, 28px);
    list-style: none;
    white-space: nowrap;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    padding: 6px 2px;
    position: relative;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link:focus-visible {
    color: #ffffff;
    outline: 2px solid var(--teal);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* Indicador de sección activa al navegar o scrollear */
.nav-link.active {
    color: #ffffff;
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--teal), var(--cyan));
    border-radius: var(--radius-full);
    box-shadow: 0 0 8px var(--cyan);
}

/* Botón CTA rápido de descarga en el Navbar */
.btn-nav-download {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 0.85rem;
    font-weight: 700;
    color: #0b0f19;
    background: linear-gradient(135deg, var(--teal) 0%, var(--cyan) 100%);
    border: none;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(20, 184, 166, 0.35);
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease;
    white-space: nowrap;
}

.btn-nav-download:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(56, 189, 248, 0.5);
    background: linear-gradient(135deg, #18c9b6 0%, #46c6fc 100%);
}

.btn-nav-download svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* Botón Hamburguesa Accesible para móviles */
.nav-toggle-btn {
    display: none;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 7px 9px;
    color: var(--text-primary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.nav-toggle-btn:hover {
    background: var(--card-hover);
    border-color: var(--border-color-active);
}

.nav-toggle-btn svg line {
    transition: transform 0.25s ease, opacity 0.2s ease;
    transform-origin: center;
}

.nav-toggle-btn.active .line-top {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle-btn.active .line-mid {
    opacity: 0;
}

.nav-toggle-btn.active .line-bottom {
    transform: translateY(-6px) rotate(-45deg);
}

.nav-cta-group {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: clamp(8px, 1vw, 12px);
    flex-shrink: 0;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-github:hover {
    background: var(--card-hover);
    border-color: var(--border-color-active);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-lang {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

.btn-lang:hover {
    background: var(--card-hover);
    border-color: var(--border-color-active);
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.flag-icon {
    display: inline-block;
    border-radius: 2px;
    box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
    vertical-align: middle;
}

/* HERO SECTION */
.hero {
    padding: 72px 0 48px;
    text-align: center;
    position: relative;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--teal);
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    margin-bottom: 24px;
}

.hero-pill-dot {
    width: 8px;
    height: 8px;
    background: var(--status-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--status-green);
}

.hero-title {
    font-size: clamp(2.3rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, var(--cyan) 75%, var(--teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 720px;
    margin: 0 auto 36px;
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CENTRAL DOWNLOAD CARD (HERO CENTERPIECE) */
.download-centerpiece {
    max-width: 640px;
    margin: 0 auto 40px;
    background: linear-gradient(180deg, rgba(22, 31, 48, 0.95), rgba(17, 24, 39, 0.98));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.download-centerpiece::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--teal), var(--cyan), transparent);
}

.btn-primary-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 16px 28px;
    font-size: 1.15rem;
    font-weight: 700;
    color: #0b0f19;
    background: linear-gradient(135deg, var(--teal) 0%, var(--cyan) 100%);
    border: none;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(20, 184, 166, 0.4);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(56, 189, 248, 0.5);
    background: linear-gradient(135deg, #18c9b6 0%, #46c6fc 100%);
}

.btn-primary-download svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

.download-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 14px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.download-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.download-meta .highlight {
    color: var(--text-secondary);
    font-weight: 600;
}

.download-meta .bullet {
    color: #6b7280;
}

.download-sublinks {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.85rem;
}

.download-sublinks a {
    color: var(--cyan);
    text-decoration: none;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.download-sublinks a:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* SYSTEM PILLS */
.system-specs-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.spec-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(17, 24, 39, 0.7);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    color: var(--text-secondary);
    transition: border-color var(--transition-base), background var(--transition-base), transform var(--transition-base);
}

.spec-badge:hover {
    border-color: var(--border-color);
    background: rgba(17, 24, 39, 0.9);
    transform: translateY(-1px);
}

.spec-badge svg {
    width: 14px;
    height: 14px;
    color: var(--teal);
}

/* MOCKUP SECTION */
.mockup-wrapper {
    margin: 48px auto 0;
    max-width: 1040px;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(20, 184, 166, 0.15);
    overflow: hidden;
}

.mockup-header {
    background: #0d1320;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.mockup-dots {
    display: flex;
    gap: 7px;
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #374151;
}

.mockup-dot.red { background: #ef4444; }
.mockup-dot.yellow { background: #f59e0b; }
.mockup-dot.green { background: #10b981; }

.mockup-hud {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: rgba(11, 15, 25, 0.9);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

.mockup-hud-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.hud-tag {
    color: var(--text-muted);
}

.hud-value {
    color: var(--teal);
    font-weight: 700;
}

.mockup-body {
    padding: 24px;
    background: #0c111d;
}

.mockup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.camera-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px;
    position: relative;
    transition: border-color 0.2s;
    min-width: 0;
}

.camera-card.active {
    border-color: var(--border-color-active);
    box-shadow: inset 0 0 20px rgba(20, 184, 166, 0.08);
}

.camera-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.camera-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.camera-type {
    font-size: 0.75rem;
    color: #d1d5db; /* Alto contraste: 10.5:1 sobre fondo de tarjeta */
}

.stream-badge {
    font-size: 0.72rem;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    letter-spacing: 0.02em;
}

.stream-badge.live {
    background: rgba(16, 185, 129, 0.22);
    color: #6ee7b7; /* Emerald 300: Contraste > 9:1 certificado WCAG AAA */
    border: 1px solid rgba(110, 231, 183, 0.45);
}

.stream-badge.stopped {
    background: rgba(107, 114, 128, 0.25);
    color: #f3f4f6; /* Contraste 13:1 */
    border: 1px solid rgba(156, 163, 175, 0.45);
}

.stream-meta-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.82rem;
    color: #e5e7eb; /* Contraste 12:1 */
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.stream-meta-row:last-child {
    border-bottom: none;
}

.meta-code {
    font-family: var(--font-mono);
    color: var(--cyan);
}

/* SECTION TITLES & SCROLL CENTERING */
.section,
.hero,
section[id],
div[id] {
    scroll-margin-top: 84px;
}

.section {
    padding: 96px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.section-tag {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--teal);
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.25;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

/* PROBLEM & SOLUTION (QUÉ RESUELVE) */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.problem-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    position: relative;
    transition: all 0.25s ease;
    min-width: 0;
}

.problem-card:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--teal);
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.problem-block {
    background: rgba(239, 68, 68, 0.08);
    border-left: 3px solid var(--status-red);
    padding: 10px 14px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.88rem;
    color: #fca5a5;
    margin-bottom: 14px;
}

.solution-block {
    background: rgba(16, 185, 129, 0.08);
    border-left: 3px solid var(--status-green);
    padding: 10px 14px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.88rem;
    color: #6ee7b7;
}

/* BENTO GRID (CON QUÉ CUENTA) */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.bento-item {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    height: 100%;
    min-width: 0;
}

.bento-item:hover {
    border-color: var(--border-color);
    background: var(--card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.bento-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.bento-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid var(--border-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyan);
    flex-shrink: 0;
}

.bento-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.bento-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.bento-tag {
    margin-top: auto;
    padding-top: 18px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--teal);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* SECURITY SECTION */
.security-banner {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.95), rgba(22, 31, 48, 0.95));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.security-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--teal), var(--cyan));
}

.security-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.security-icon {
    width: 52px;
    height: 52px;
    background: rgba(20, 184, 166, 0.15);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal);
    flex-shrink: 0;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.security-card {
    background: rgba(11, 15, 25, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 18px;
    transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
    min-width: 0;
}

.security-card:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.sec-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sec-title svg {
    width: 16px;
    height: 16px;
    color: var(--cyan);
}

.sec-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.security-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

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

.security-policy-link:hover {
    color: #ffffff;
    text-decoration: underline;
}

.security-report-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--teal);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.security-report-btn:hover {
    background: rgba(20, 184, 166, 0.25);
    border-color: var(--teal);
    color: #ffffff;
}

/* 3 STEPS SECTION */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.step-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.step-card:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.step-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 800;
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.35);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.15);
    flex-shrink: 0;
}

.step-title {
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.step-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    /* Sin flex-grow: el contenido fluye naturalmente sin crear huecos artificiales */
}

.code-box {
    background: #090e17;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    color: var(--cyan);
    min-width: 0;
    max-width: 100%;
    margin-top: auto; /* Se alinea elegantemente abajo si las tarjetas se emparejan */
}

.code-box.code-box-simple {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.code-box-path {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan);
    font-weight: 600;
}

.code-box-path svg {
    color: var(--teal);
    flex-shrink: 0;
}

.code-box-status {
    font-size: 0.78rem;
    font-weight: 600;
    color: #9ca3af;
    background: rgba(255, 255, 255, 0.06);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
}

.code-box-status.status-online {
    color: var(--status-green);
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.code-box.code-box-template {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px 14px;
    background: #080d16;
    border-color: rgba(56, 189, 248, 0.25);
}

.code-box-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.code-box-tag {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--teal);
}

.btn-copy {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--teal);
    font-size: 0.76rem;
    font-weight: 700;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

.btn-copy:hover {
    background: rgba(20, 184, 166, 0.25);
    border-color: var(--teal);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-copy.copied {
    border-color: var(--status-green);
    background: rgba(16, 185, 129, 0.2);
    color: var(--status-green);
}

.btn-copy svg {
    flex-shrink: 0;
}

.code-box-code-wrapper {
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(56, 189, 248, 0.14);
    border-radius: 6px;
    padding: 8px 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.code-box-code-wrapper code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--cyan);
    white-space: nowrap;
    display: inline-block;
    user-select: all;
}

.code-param {
    color: #f59e0b;
    font-weight: 700;
    background: rgba(245, 158, 11, 0.14);
    padding: 1px 4px;
    border-radius: 3px;
    border: 1px solid rgba(245, 158, 11, 0.28);
}

/* CALLOUT BANNER DE TIP (UBICADO DEBAJO DE LAS 3 TARJETAS PARA EQUILIBRIO PERFECTO) */
.step-hint-banner {
    margin-top: 24px;
    background: rgba(17, 24, 39, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.step-hint-icon {
    color: #f59e0b;
    flex-shrink: 0;
    margin-top: 2px;
}

.step-hint-content {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.step-hint-content code {
    background: rgba(0, 0, 0, 0.4);
    color: var(--cyan);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.88em;
}

/* TECH STACK BADGES */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.tech-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.tech-pill:hover {
    border-color: var(--border-color);
    background: var(--card-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.tech-pill svg {
    width: 18px;
    height: 18px;
    color: var(--cyan);
}

/* FOOTER */
.footer {
    background: #080b12;
    border-top: 1px solid var(--border-subtle);
    padding: 60px 0 36px;
    margin-top: 48px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 36px;
    margin-bottom: 36px;
}

.footer-brand {
    max-width: 440px;
}

.footer-brand-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links-group {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 48px;
}

.footer-column-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--cyan);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-author-badge {
    color: var(--text-secondary);
}

.footer-author-badge a {
    color: var(--teal);
    text-decoration: none;
    font-weight: 600;
}

.footer-author-badge a:hover {
    text-decoration: underline;
}

/* ==============================================================================
   PREGUNTAS FRECUENTES (FAQ & SEO ACCORDION)
   ============================================================================== */
.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 920px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    overflow: hidden;
    min-width: 0;
}

.faq-item:hover {
    border-color: var(--teal);
    background: var(--card-hover);
}

.faq-item[open] {
    border-color: var(--teal);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-icon {
    width: 20px;
    height: 20px;
    color: var(--teal);
    transition: transform 0.25s ease;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item[open] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 24px 20px 24px;
    color: var(--text-secondary);
    line-height: 1.68;
    font-size: 0.95rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 16px;
}

.faq-answer strong {
    color: var(--text-primary);
}

.faq-answer code {
    font-family: var(--font-mono);
    background: rgba(0, 0, 0, 0.35);
    padding: 2px 7px;
    border-radius: var(--radius-sm);
    color: var(--cyan);
    font-size: 0.88em;
}

/* RESPONSIVENESS */
@media (max-width: 980px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1080px) {
    .btn-nav-download {
        display: none;
    }

    .nav-toggle-btn {
        display: inline-flex;
    }

    .navbar-inner {
        display: flex;
        justify-content: space-between;
    }

    .nav-menu {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border-bottom: 1px solid var(--border-color);
        padding: 20px 24px 28px;
        gap: 12px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
        z-index: 999;
    }

    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-link {
        font-size: 1.05rem;
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        width: 100%;
        display: block;
    }

    .nav-link:hover,
    .nav-link.active {
        background: rgba(20, 184, 166, 0.12);
        color: #ffffff;
    }

    .nav-link.active::after {
        display: none;
    }

    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 76px;
    }

    .section,
    .hero,
    section[id],
    div[id] {
        scroll-margin-top: 76px;
    }

    body {
        padding-top: 60px;
    }

    .navbar-inner {
        height: 60px;
    }

    .nav-menu {
        top: 60px;
    }

    .step-hint-banner {
        flex-direction: column;
        gap: 10px;
        padding: 14px 16px;
    }

    .section {
        padding: 64px 0;
    }
    .problem-grid {
        grid-template-columns: 1fr;
    }
    .steps-grid {
        grid-template-columns: 1fr;
    }
    .security-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .navbar-inner {
        height: 60px;
    }

    .nav-cta-group {
        gap: 8px;
    }

    .btn-github span {
        display: none;
    }

    .btn-github {
        padding: 6px 10px;
    }

    .btn-lang {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .faq-question {
        padding: 16px 14px;
        font-size: 0.95rem;
    }

    .faq-answer {
        padding: 0 14px 16px 14px;
        font-size: 0.88rem;
    }

    .section {
        padding: 44px 0;
    }

    .section-header {
        margin-bottom: 28px;
    }

    .section-title {
        font-size: 1.6rem;
        line-height: 1.25;
    }

    .section-desc {
        font-size: 0.9rem;
    }

    /* HERO EN MODO TELÉFONO */
    .hero {
        padding: 32px 0 20px;
    }

    .hero-pill {
        font-size: 0.75rem;
        padding: 4px 12px;
        margin-bottom: 16px;
    }

    .hero-title {
        font-size: 1.85rem;
        line-height: 1.2;
        margin-bottom: 12px;
    }

    .hero-subtitle {
        font-size: 0.92rem;
        margin-bottom: 20px;
        line-height: 1.55;
    }

    .download-centerpiece {
        padding: 18px 14px;
        margin-bottom: 20px;
    }

    .btn-primary-download {
        font-size: 0.95rem;
        padding: 12px 16px;
    }

    .download-meta {
        font-size: 0.78rem;
        gap: 8px 12px;
    }

    .download-sublinks {
        flex-direction: column;
        gap: 8px;
        font-size: 0.82rem;
    }

    .system-specs-bar {
        gap: 6px;
        margin-top: 16px;
    }

    .spec-badge {
        font-size: 0.74rem;
        padding: 4px 10px;
    }

    /* MOCKUP & TELEMETRÍA EN MODO TELÉFONO */
    .mockup-wrapper {
        margin-top: 28px;
    }

    .mockup-header {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 8px 12px;
    }

    .mockup-dots {
        align-self: flex-start;
    }

    .mockup-hud {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        gap: 6px;
        padding: 6px 8px;
        width: 100%;
        background: rgba(11, 15, 25, 0.95);
    }

    .mockup-hud-item {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: var(--radius-sm);
        padding: 3px 8px;
        font-size: 0.72rem;
        white-space: nowrap;
    }

    .mockup-hud-item.hud-wide {
        border-color: rgba(56, 189, 248, 0.2);
    }

    .mockup-body {
        padding: 12px 10px;
    }

    .mockup-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .camera-card {
        padding: 12px;
    }

    .camera-card-top {
        gap: 8px;
        margin-bottom: 8px;
    }

    .camera-name {
        font-size: 0.88rem;
    }

    .stream-meta-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 3px;
        padding: 5px 0;
        font-size: 0.78rem;
    }

    .stream-meta-row .meta-code {
        font-size: 0.74rem;
        word-break: break-all;
        background: rgba(0, 0, 0, 0.4);
        border: 1px solid rgba(255, 255, 255, 0.04);
        padding: 4px 8px;
        border-radius: var(--radius-sm);
        display: block;
        width: 100%;
    }

    /* QUÉ RESUELVE */
    .problem-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .problem-card {
        padding: 18px 14px;
    }

    .card-title {
        font-size: 1.05rem;
    }

    .problem-block, .solution-block {
        font-size: 0.84rem;
        padding: 8px 12px;
    }

    /* BENTO GRID */
    .bento-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .bento-item {
        padding: 18px 14px;
    }

    .bento-header {
        gap: 10px;
        margin-bottom: 10px;
    }

    .bento-icon {
        width: 34px;
        height: 34px;
    }

    .bento-title {
        font-size: 1.02rem;
    }

    .bento-text {
        font-size: 0.86rem;
        line-height: 1.5;
    }

    .bento-tag {
        padding-top: 12px;
        font-size: 0.74rem;
    }

    /* SEGURIDAD */
    .security-banner {
        padding: 20px 14px;
    }

    .security-header {
        gap: 10px;
        margin-bottom: 14px;
    }

    .security-icon {
        width: 40px;
        height: 40px;
    }

    .security-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 18px;
    }

    .security-card {
        padding: 12px;
    }

    .sec-desc {
        font-size: 0.82rem;
    }

    .security-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .security-policy-link,
    .security-report-btn {
        width: 100%;
        justify-content: center;
        text-align: center;
        padding: 9px 12px;
        font-size: 0.82rem;
    }

    /* PASOS EN MODO TELÉFONO */
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .step-card {
        padding: 18px 14px;
        min-width: 0;
    }

    .step-number {
        font-size: 1.8rem;
        margin-bottom: 4px;
    }

    .step-title {
        font-size: 1.02rem;
    }

    .step-desc {
        font-size: 0.86rem;
        margin-bottom: 10px;
    }

    .btn-copy {
        padding: 8px 12px;
    }

    .step-hint {
        font-size: 0.78rem;
        padding: 8px 10px;
    }

    /* TECNOLOGÍAS */
    .tech-grid {
        gap: 8px;
    }

    .tech-pill {
        padding: 6px 10px;
        font-size: 0.78rem;
        gap: 6px;
    }

    .tech-pill svg {
        width: 14px;
        height: 14px;
    }

    /* FOOTER */
    .footer {
        padding: 36px 0 20px;
    }

    .footer-links-group {
        grid-template-columns: 1fr 1fr;
        gap: 20px 14px;
    }

    .footer-links-group > div:last-child {
        grid-column: span 2;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        font-size: 0.78rem;
    }
}

@media (max-width: 480px) {
    .navbar-inner {
        height: 58px;
    }

    .brand-logo-svg {
        width: 30px;
        height: 30px;
    }

    .brand-title {
        font-size: 1.15rem;
    }

    .brand-subtitle {
        font-size: 0.58rem;
        letter-spacing: 0.04em;
    }

    .btn-github span {
        display: none;
    }

    .btn-github {
        padding: 6px 10px;
    }

    .btn-lang {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .footer-links-group {
        grid-template-columns: 1fr;
    }

    .footer-links-group > div:last-child {
        grid-column: span 1;
    }
}

/* ACCESSIBILITY: WCAG 1.4.1 Links inside text block must have underline & sufficient contrast */
.footer-license-link {
    color: var(--cyan);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 600;
    transition: color 0.2s ease;
}

.footer-license-link:hover,
.footer-license-link:focus-visible {
    color: #ffffff;
}

.footer-author-link {
    color: var(--teal);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 600;
    transition: color 0.2s ease;
}

.footer-author-link:hover,
.footer-author-link:focus-visible {
    color: #ffffff;
}

/* Pulsing Live Dot Animation */
@keyframes pulseLiveStream {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 10px var(--status-green);
    }
    50% {
        opacity: 0.5;
        box-shadow: 0 0 3px var(--status-green);
    }
}

.stream-badge.live {
    animation: pulseLiveStream 2s infinite ease-in-out;
}