/* landing.css v3.1 — Estética Editorial & Arquitectónica con Logo Oficial */
:root {
    --bg-primary: #070A12;
    --bg-secondary: #0C1220;
    --bg-card: #101829;
    --bg-card-hover: #152036;
    --border-subtle: rgba(148, 163, 184, 0.14);
    --border-strong: rgba(56, 189, 248, 0.38);
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --text-dim: #64748B;
    --accent-primary: #0284C7;
    --accent-cyan: #38BDF8;
    --accent-emerald: #10B981;
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Instrument Serif', Georgia, serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
}

/* Líneas arquitectónicas verticales sutiles */
.arch-grid-lines {
    position: fixed;
    inset: 0;
    max-width: 1180px;
    margin: 0 auto;
    border-left: 1px solid rgba(148, 163, 184, 0.06);
    border-right: 1px solid rgba(148, 163, 184, 0.06);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

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

.border-top {
    border-top: 1px solid var(--border-subtle);
}

.surface-alt {
    background-color: var(--bg-secondary);
}

/* Tipografía Editorial Combinada */
.serif-italic {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--accent-cyan);
}

.mono-eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    margin-bottom: 12px;
}

.mono-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* =========================================================================
   NAVBAR & LOGO IMAGE
   ========================================================================= */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7, 10, 18, 0.86);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.18rem;
    letter-spacing: -0.02em;
}

.logo-img {
    border-radius: 8px;
    object-fit: cover;
    display: block;
    border: 1px solid rgba(56, 189, 248, 0.25);
    box-shadow: 0 2px 10px rgba(2, 132, 199, 0.2);
}

.logo-mark {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-main);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-nav-outline {
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    transition: border-color 0.2s, background 0.2s;
}

.btn-nav-outline:hover {
    border-color: var(--accent-cyan);
    background: rgba(56, 189, 248, 0.08);
}

.btn-nav-solid {
    font-size: 0.85rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 8px;
    background: var(--accent-primary);
    color: #FFFFFF;
    transition: background 0.2s;
}

.btn-nav-solid:hover {
    background: #0369A1;
}

/* =========================================================================
   HERO SECTION + UI MOCKUPS + BARRA DE MÉTRICAS
   ========================================================================= */
.hero-section {
    padding: 84px 0 64px 0;
    background: radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.16) 0%, transparent 62%);
}

.hero-header-block {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 52px auto;
}

.eyebrow-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.73rem;
    letter-spacing: 0.06em;
    color: #E2E8F0;
    background: rgba(16, 24, 41, 0.9);
    border: 1px solid var(--border-subtle);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 24px;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
}

.hero-header-block h1 {
    font-size: 3.55rem;
    line-height: 1.12;
    letter-spacing: -0.03em;
    font-weight: 800;
    margin-bottom: 22px;
}

.hero-header-block h1 .serif-italic {
    font-size: 3.85rem;
    font-weight: 400;
}

.hero-lead {
    font-size: 1.12rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 32px auto;
    line-height: 1.65;
}

.hero-lead strong {
    color: var(--text-main);
}

.hero-cta-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.btn-primary-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-primary);
    color: #FFFFFF;
    font-weight: 700;
    font-size: 0.98rem;
    padding: 14px 26px;
    border-radius: 8px;
    box-shadow: 0 4px 18px rgba(2, 132, 199, 0.35);
    transition: transform 0.18s, background 0.18s, box-shadow 0.18s;
}

.btn-primary-main:hover {
    background: #0369A1;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(2, 132, 199, 0.5);
}

.btn-secondary-ghost {
    display: inline-flex;
    align-items: center;
    background: rgba(16, 24, 41, 0.75);
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.96rem;
    padding: 14px 24px;
    border-radius: 8px;
    transition: border-color 0.2s, background 0.2s;
}

.btn-secondary-ghost:hover {
    border-color: var(--accent-cyan);
    background: rgba(56, 189, 248, 0.08);
}

.device-strip {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
}

.device-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.device-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 6px;
}

/* 2 Tarjetas Visuales tipo UI en el Hero */
.hero-showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.ui-window-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.ui-window-bar {
    background: rgba(7, 10, 18, 0.65);
    border-bottom: 1px solid var(--border-subtle);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.3);
}

.window-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
}

.ui-window-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.mockup-row {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding-bottom: 10px;
    border-bottom: 1px dashed rgba(148, 163, 184, 0.12);
}

.mockup-key {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
}

.mockup-val {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-main);
}

.highlight-cyan {
    color: var(--accent-cyan);
}

.mockup-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.mockup-tags span {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: #E0F2FE;
    font-size: 0.76rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 6px;
}

.mockup-status-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 0.82rem;
    color: #A7F3D0;
}

.mockup-lesson-pill {
    background: rgba(7, 10, 18, 0.55);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 14px;
}

.mono-mini {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 6px;
}

.mockup-quote {
    font-size: 0.94rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 10px;
}

.mockup-audio-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-cyan);
    background: rgba(2, 132, 199, 0.12);
    padding: 6px 10px;
    border-radius: 6px;
}

.audio-meta {
    color: var(--text-muted);
}

.mockup-hint-box {
    background: rgba(56, 189, 248, 0.06);
    border-left: 3px solid var(--accent-cyan);
    padding: 10px 12px;
    border-radius: 4px;
    font-size: 0.84rem;
}

.mockup-hint-box strong {
    display: block;
    color: var(--text-main);
    margin-bottom: 3px;
}

.mockup-hint-box p {
    color: var(--text-muted);
}

/* Barra de 4 Métricas */
.metrics-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
}

.metric-item {
    padding: 20px;
    text-align: center;
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.metric-item:last-child {
    border-right: none;
}

.metric-number {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

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

/* =========================================================================
   ESTRUCTURA GENERAL DE SECCIONES
   ========================================================================= */
.section-block {
    padding: 88px 0;
}

.section-heading {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 52px auto;
}

.section-heading h2 {
    font-size: 2.35rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}

.section-heading h2 .serif-italic {
    font-size: 2.55rem;
}

.section-heading p {
    color: var(--text-muted);
    font-size: 1.04rem;
}

/* =========================================================================
   SECCIÓN 1: 3 TARJETAS CON ICONOS SVG
   ========================================================================= */
.tri-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.clean-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: border-color 0.2s, transform 0.2s;
}

.clean-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.card-top-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.svg-icon-box {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.28);
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
}

.clean-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-main);
}

.clean-card p {
    font-size: 0.94rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.card-footer-note {
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-cyan);
}

/* =========================================================================
   SECCIÓN 2: PASOS NUMERADOS 01 / 02 / 03
   ========================================================================= */
.steps-numbered-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.step-column {
    padding: 12px 8px;
}

.step-giant-num {
    font-family: var(--font-mono);
    font-size: 2.6rem;
    font-weight: 600;
    color: rgba(56, 189, 248, 0.28);
    line-height: 1;
    margin-bottom: 16px;
}

.step-column h4 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: var(--text-main);
}

.step-column p {
    font-size: 0.94rem;
    color: var(--text-muted);
}

/* =========================================================================
   SECCIÓN 3: BENTO GRID 3+2
   ========================================================================= */
.bento-grid-top {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.bento-grid-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bento-featured {
    border-color: rgba(16, 185, 129, 0.45);
    background: linear-gradient(180deg, rgba(16, 185, 129, 0.07) 0%, var(--bg-card) 100%);
}

.bento-level-badge {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.badge-cyan { background: rgba(56, 189, 248, 0.14); color: var(--accent-cyan); }
.badge-blue { background: rgba(2, 132, 199, 0.22); color: #7DD3FC; }
.badge-green { background: rgba(16, 185, 129, 0.18); color: #34D399; }

.bento-card h3 {
    font-size: 1.22rem;
    color: var(--text-main);
}

.bento-card p {
    font-size: 0.93rem;
    color: var(--text-muted);
}

.bento-micro-list {
    list-style: none;
    margin-top: 6px;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bento-micro-list li {
    font-size: 0.84rem;
    color: #CBD5E1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bento-micro-list li::before {
    content: "→";
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

/* =========================================================================
   SECCIÓN 4: SPLIT DE ALTO CONTRASTE (FACTOR TIEMPO & PWA)
   ========================================================================= */
.high-contrast-split {
    background: linear-gradient(180deg, #05080F 0%, #0B1324 100%);
}

.split-layout {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
}

.split-narrative h2 {
    font-size: 2.3rem;
    line-height: 1.18;
    margin-bottom: 18px;
}

.split-narrative p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 16px;
}

.split-narrative strong {
    color: var(--text-main);
}

.split-cta-wrap {
    margin-top: 24px;
}

.split-cards-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.terminal-spec-card {
    background: rgba(16, 24, 41, 0.9);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 24px;
}

.terminal-spec-card.accent-border {
    border-color: rgba(56, 189, 248, 0.35);
}

.spec-header {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--accent-cyan);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-subtle);
}

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

.spec-list li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.88rem;
}

.spec-list li span {
    color: var(--text-muted);
}

.spec-list li strong {
    color: var(--text-main);
    text-align: right;
}

/* =========================================================================
   SECCIÓN 5: TRES GARANTÍAS
   ========================================================================= */
.guarantees-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.guarantee-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 24px;
}

.guarantee-box h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--text-main);
}

.guarantee-box p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* =========================================================================
   CALL TO ACTION FINAL & FOOTER
   ========================================================================= */
.final-cta-banner {
    padding: 88px 0;
    background: radial-gradient(circle at 50% 100%, rgba(2, 132, 199, 0.2) 0%, var(--bg-secondary) 70%);
    text-align: center;
}

.final-cta-inner {
    max-width: 720px;
    margin: 0 auto;
}

.final-cta-inner h2 {
    font-size: 2.5rem;
    line-height: 1.18;
    margin-bottom: 16px;
}

.final-cta-inner p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 30px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.02rem;
}

.site-footer {
    padding: 36px 0;
    background: var(--bg-primary);
    font-size: 0.88rem;
    color: var(--text-muted);
}

.footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-right {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

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

/* =========================================================================
   RESPONSIVE DESIGN (MÓVILES Y TABLETS)
   ========================================================================= */
@media (max-width: 920px) {
    .hero-header-block h1 { font-size: 2.5rem; }
    .hero-header-block h1 .serif-italic { font-size: 2.7rem; }
    .hero-showcase-grid,
    .tri-cards-grid,
    .steps-numbered-grid,
    .bento-grid-top,
    .bento-grid-bottom,
    .split-layout,
    .guarantees-grid {
        grid-template-columns: 1fr;
    }
    .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    .metric-item:nth-child(2) {
        border-right: none;
    }
    .metric-item:nth-child(1),
    .metric-item:nth-child(2) {
        border-bottom: 1px solid var(--border-subtle);
    }
    .hide-mobile {
        display: none;
    }
}

@media (max-width: 560px) {
    .hero-section { padding: 56px 0 44px 0; }
    .hero-header-block h1 { font-size: 2.05rem; }
    .hero-header-block h1 .serif-italic { font-size: 2.2rem; }
    .metrics-bar { grid-template-columns: 1fr; }
    .metric-item { border-right: none; border-bottom: 1px solid var(--border-subtle); }
    .metric-item:last-child { border-bottom: none; }
    .hide-sm { display: none; }
    .spec-list li { flex-direction: column; gap: 2px; }
    .spec-list li strong { text-align: left; }
}