/* =========================================
   SMART TRADE | MANUAL DE MARCA V1.0
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500;700&family=Geist:wght@300;400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap');

:root {
    /* Paleta Base 70/20/10 — Manual §04 */
    --ink:        #0A0B0D;
    --surface:    #16181C;
    --border:     #24262C;
    --foreground: #F2F1ED;
    --silver:     #C9C7C0;
    --paper:      #F4F1EA;

    /* Acentos Verticales — Manual §04 */
    --quantum-cyan:      #38BDF8;
    --nexus-indigo:      #818CF8;
    --automation-green:  #10B981;
    --support-amber:     #F59E0B;
    --alert-yellow:      #F0E040;
    --risk-red:          #EF4444;

    /* Tipografías — Manual §05 */
    --font-display:   'Geist', sans-serif;
    --font-mono:      'Geist Mono', monospace;
    --font-editorial: 'Instrument Serif', serif;
}

/* =========================================
   RESETEO Y BASE
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--ink);
    color: var(--silver);
    font-family: var(--font-display);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    color: var(--foreground);
    font-weight: 500;
    letter-spacing: -0.025em;
}

a { color: inherit; }

/* Cursiva editorial — Manual §05 */
.editorial-accent,
em {
    font-family: var(--font-editorial);
    font-style: italic;
    font-weight: 400;
}

/* Eyebrow mono — Manual §05 "Mono · 11/14" */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--silver);
    display: block;
    margin-bottom: 16px;
}

/* Eyebrow del hero — con glifo ↗ */
.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--quantum-cyan);
    display: block;
    margin-bottom: 24px;
}

/* =========================================
   NAVEGACIÓN
   ========================================= */
.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 48px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background-color: rgba(10, 11, 13, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
}

/* Logo — imagen real del lockup — Manual §03 */
.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 28px;
    width: auto;
    display: block;
}

.logo-container a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

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

.nav-links a {
    color: var(--silver);
    text-decoration: none;
    margin-left: 32px;
    font-size: 14px;
    transition: color 0.2s;
}

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

/* CTA principal de nav — botón sólido */
.nav-cta {
    background-color: var(--foreground) !important;
    color: var(--ink) !important;
    font-family: var(--font-mono);
    font-size: 12px !important;
    letter-spacing: 0.05em;
    padding: 9px 20px !important;
    border-radius: 6px;
    transition: background-color 0.18s;
    display: inline-block;
}

.nav-cta:hover {
    background-color: var(--paper) !important;
    color: var(--ink) !important;
}

/* Dropdown */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown > a {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background-color: var(--surface);
    border: 1px solid var(--border);
    min-width: 220px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--silver);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.15s ease;
    margin-left: 0;
    border-left: 2px solid transparent;
}

.dropdown-menu a:hover {
    color: var(--foreground);
    background-color: rgba(242, 241, 237, 0.04);
    border-left-color: var(--quantum-cyan);
}

/* =========================================
   HERO SECTIONS
   ========================================= */
.hero-section {
    padding: 120px 48px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

/* Textura retícula técnica del hero — Manual §06 */
.hero-section::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 50% 30%, rgba(56, 189, 248, 0.07), transparent 55%),
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: auto, 24px 24px, 24px 24px;
    pointer-events: none;
    z-index: -1;
}

/* H1 — Display scale: 62px / letter-spacing -0.025em — Manual §05 */
.hero-title {
    font-size: 62px;
    line-height: 1.08;
    letter-spacing: -0.03em;
    font-weight: 500;
    margin-bottom: 24px;
    color: var(--foreground);
}

.hero-lede {
    font-size: 19px;
    line-height: 1.7;
    margin-bottom: 48px;
    color: var(--silver);
    font-weight: 300;
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

/* =========================================
   BOTONES — Manual §10
   ========================================= */
.btn-primary,
.btn-secondary,
.btn-outline,
.btn-outline-cyan,
.btn-outline-indigo,
.btn-outline-green {
    display: inline-block;
    padding: 15px 32px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-family: var(--font-display);
    letter-spacing: 0.01em;
}

/* CTA primario — foreground sobre ink */
.btn-primary {
    background-color: var(--foreground);
    color: var(--ink);
}

.btn-primary:hover {
    background-color: var(--silver);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--surface);
    color: var(--foreground);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--foreground);
    background-color: rgba(242, 241, 237, 0.05);
}

/* CTAs de verticales */
.btn-outline-cyan {
    border: 1px solid var(--quantum-cyan);
    color: var(--quantum-cyan);
    background-color: transparent;
}

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

.btn-outline-indigo {
    border: 1px solid var(--nexus-indigo);
    color: var(--nexus-indigo);
    background-color: transparent;
}

.btn-outline-indigo:hover {
    background-color: rgba(129, 140, 248, 0.08);
}

.btn-outline-green {
    border: 1px solid var(--automation-green);
    color: var(--automation-green);
    background-color: transparent;
}

.btn-outline-green:hover {
    background-color: rgba(16, 185, 129, 0.08);
}

.btn-outline-amber {
    border: 1px solid var(--support-amber);
    color: var(--support-amber);
    background-color: transparent;
}

.btn-outline-amber:hover {
    background-color: rgba(245, 158, 11, 0.08);
}

.btn-outline-silver {
    border: 1px solid var(--silver);
    color: var(--silver);
    background-color: transparent;
}

.btn-outline-silver:hover {
    background-color: rgba(201, 199, 192, 0.08);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* =========================================
   MÉTRICAS (GEIST MONO) — Manual §05
   ========================================= */
.metrics-bar,
.tech-grid {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: 64px;
    border-top: 1px solid var(--border);
    padding-top: 32px;
}

.metric-item {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.metric-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--silver);
    opacity: 0.7;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--foreground);
    margin-top: 6px;
    letter-spacing: 0.04em;
}

/* =========================================
   TARJETAS — Manual §04 §06
   ========================================= */
.cards-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--border);
    border: 1px solid var(--border);
}

.cards-2col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--border);
    border: 1px solid var(--border);
}

.card {
    background-color: var(--surface);
    padding: 40px;
    border: none;
    position: relative;
    overflow: hidden;
    transition: background-color 0.2s ease;
}

.card:hover {
    background-color: #1c1e24;
}

.card h3 {
    font-size: 20px;
    margin-bottom: 14px;
    color: var(--foreground);
    letter-spacing: -0.02em;
}

.card p {
    font-size: 14px;
    color: var(--silver);
    margin-bottom: 28px;
    line-height: 1.65;
    font-weight: 300;
}

.card-link {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-decoration: none;
    color: var(--silver);
    transition: color 0.2s;
    display: inline-block;
}

/* Acentos de color por vertical — Manual §04 */
.card-cyan   { border-top: 2px solid var(--quantum-cyan); }
.card-indigo { border-top: 2px solid var(--nexus-indigo); }
.card-green  { border-top: 2px solid var(--automation-green); }
.card-amber  { border-top: 2px solid var(--support-amber); }
.card-silver { border-top: 2px solid var(--silver); }

.card-cyan   .card-link { color: var(--quantum-cyan); }
.card-indigo .card-link { color: var(--nexus-indigo); }
.card-green  .card-link { color: var(--automation-green); }
.card-amber  .card-link { color: var(--support-amber); }
.card-silver .card-link { color: var(--silver); }

.card-indigo.featured {
    border: 2px solid var(--nexus-indigo);
    border-top: 2px solid var(--nexus-indigo);
}

.price-card.card-silver.featured {
    border: 2px solid var(--quantum-cyan);
    border-top: 2px solid var(--quantum-cyan);
}

/* =========================================
   SECCIONES
   ========================================= */
section {
    padding: 96px 48px;
    max-width: 1200px;
    margin: 0 auto;
}

section.full-width {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
}

section h2 {
    font-size: 36px;
    letter-spacing: -0.025em;
    margin-bottom: 48px;
    font-weight: 500;
}

/* =========================================
   GRID 50/50 (MANIFIESTO)
   ========================================= */
.grid-50-50 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.grid-50-50 h2 {
    font-size: 48px;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

/* =========================================
   TIMELINE / PASOS
   ========================================= */
.steps-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 720px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
}

.step:last-child { border-bottom: none; }

.step-number {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--quantum-cyan);
    min-width: 40px;
    letter-spacing: 0.1em;
    padding-top: 3px;
}

.step-content h3 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--foreground);
}

.step-content p {
    font-size: 15px;
    color: var(--silver);
    line-height: 1.65;
    font-weight: 300;
}

/* =========================================
   PRICING
   ========================================= */
.pricing-intro {
    text-align: center;
    margin-bottom: 64px;
}

.pricing-intro h2 { margin-bottom: 16px; }

.pricing-intro p {
    font-size: 17px;
    color: var(--silver);
    max-width: 560px;
    margin: 0 auto;
    font-weight: 300;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--border);
    border: 1px solid var(--border);
}

.price-card {
    background-color: var(--surface);
    border: none;
    padding: 40px;
    text-align: left;
    transition: background-color 0.2s ease;
}

.price-card:hover { background-color: #1c1e24; }

.price-eyebrow {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--silver);
    display: block;
    margin-bottom: 16px;
}

.price-card h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: var(--foreground);
    letter-spacing: -0.02em;
}

.price-amount {
    font-family: var(--font-mono);
    font-size: 36px;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.price-period {
    font-size: 13px;
    color: var(--silver);
    margin-bottom: 28px;
    font-family: var(--font-mono);
}

.price-card p {
    font-size: 14px;
    color: var(--silver);
    margin-bottom: 32px;
    line-height: 1.65;
    font-weight: 300;
}

/* =========================================
   FEATURES
   ========================================= */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--border);
    border: 1px solid var(--border);
}

.feature-block {
    padding: 36px;
    background-color: var(--surface);
    border: none;
    transition: background-color 0.2s ease;
}

.feature-block:hover { background-color: #1c1e24; }

.feature-block h3 {
    font-size: 17px;
    margin-bottom: 14px;
    color: var(--foreground);
    letter-spacing: -0.015em;
}

.feature-block p {
    font-size: 14px;
    color: var(--silver);
    line-height: 1.65;
    font-weight: 300;
}

/* =========================================
   FOOTER — Manual §12
   ========================================= */
.main-footer {
    background-color: var(--ink);
    border-top: 1px solid var(--border);
    padding: 64px 48px 48px;
    margin-top: 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border);
}

/* Logo en footer: isotipo (solo iso) — Manual §11 */
.footer-brand {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-iso {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
}

.footer-brand-text h3 {
    font-size: 13px;
    margin-bottom: 6px;
    color: var(--foreground);
    font-weight: 600;
    letter-spacing: 0.12em;
    font-family: var(--font-mono);
}

.footer-brand-text p {
    font-size: 13px;
    color: var(--silver);
    line-height: 1.5;
}

.footer-contact {
    text-align: right;
}

.footer-contact h4 {
    font-size: 12px;
    color: var(--silver);
    margin-bottom: 8px;
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.footer-contact p {
    font-size: 14px;
    color: var(--foreground);
    margin-bottom: 6px;
}

.footer-contact a {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--quantum-cyan);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-contact a:hover { color: var(--foreground); }

/* Disclaimer legal en mono — Manual §05 */
.footer-disclaimer {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-disclaimer p {
    font-family: var(--font-mono);
    font-size: 10px;
    color: rgba(201, 199, 192, 0.35);
    line-height: 1.7;
    letter-spacing: 0.04em;
}

/* =========================================
   SECCIÓN MANIFIESTO (background surface)
   ========================================= */
.section-surface {
    background-color: var(--surface);
    max-width: none;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-surface > .grid-50-50 {
    padding: 96px 48px;
    max-width: 1200px;
    margin: 0 auto;
}

/* =========================================
   RESPONSIVE — MOBILE FIRST
   ========================================= */

/* Hamburger button — oculto en desktop */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: var(--foreground);
    transition: transform 0.25s ease, opacity 0.25s ease;
    transform-origin: center;
}

.nav-hamburger.is-active span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.nav-hamburger.is-active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-hamburger.is-active span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* --- TABLET (max 1024px) --- */
@media (max-width: 1024px) {
    section { padding: 64px 32px; }

    .grid-50-50 {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .cards-3col,
    .features-grid,
    .pricing-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-contact { text-align: left; }
}

/* --- MÓVIL (max 768px) --- */
@media (max-width: 768px) {

    /* === NAVEGACIÓN MÓVIL === */
    .main-nav {
        padding: 0 20px;
        flex-wrap: wrap;
        align-items: center;
    }

    .logo-container {
        flex: 1;
        padding: 16px 0;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding-bottom: 12px;
        border-top: 1px solid var(--border);
        align-items: flex-start;
    }

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

    .nav-links > a {
        margin-left: 0;
        padding: 14px 0;
        font-size: 15px;
        border-bottom: 1px solid var(--border);
        width: 100%;
        display: block;
    }

    .nav-cta {
        font-size: 14px !important;
        border-bottom: none !important;
        padding: 12px 20px !important;
        margin-top: 12px;
        text-align: center;
        width: 100%;
        border-radius: 6px;
    }

    .nav-dropdown {
        display: block;
        width: 100%;
        border-bottom: 1px solid var(--border);
    }

    .nav-dropdown > a {
        margin-left: 0;
        padding: 14px 0;
        font-size: 15px;
        width: 100%;
        display: flex;
        justify-content: space-between;
    }

    /* Desactivar hover en móvil — el JS maneja el toggle */
    .nav-dropdown:hover .dropdown-menu {
        opacity: 0;
        visibility: hidden;
        transform: none;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        border-left: 2px solid var(--border);
        margin: 0 0 8px 8px;
        padding: 4px 0 4px 16px;
        background: transparent;
        min-width: auto;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.2s ease, max-height 0.25s ease;
    }

    .nav-dropdown.is-open .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 200px;
    }

    .dropdown-menu a {
        padding: 10px 0;
        border-left: none;
        margin-left: 0;
        font-size: 14px;
        display: block;
    }

    /* === HERO MÓVIL === */
    .hero-section {
        padding: 64px 20px 48px;
        text-align: left;
    }

    .hero-title {
        font-size: 36px;
        line-height: 1.1;
    }

    .hero-lede {
        font-size: 16px;
        margin-left: 0;
        margin-right: 0;
        margin-bottom: 32px;
        max-width: 100%;
    }

    .hero-section .btn-primary {
        display: block;
        width: 100%;
        text-align: center;
        padding: 16px 24px;
    }

    /* === SECCIONES === */
    section {
        padding: 56px 20px;
    }

    section h2 {
        font-size: 26px;
        margin-bottom: 32px;
    }

    /* === TARJETAS === */
    .card, .price-card, .feature-block {
        padding: 28px 24px;
    }

    .cards-3col,
    .cards-2col,
    .features-grid,
    .pricing-cards {
        grid-template-columns: 1fr;
    }

    /* === MÉTRICAS — layout fila en móvil === */
    .metrics-bar,
    .tech-grid {
        flex-direction: column;
        gap: 0;
        margin-top: 40px;
        padding-top: 0;
        border-top: 1px solid var(--border);
    }

    .metric-item {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 14px 0;
        border-bottom: 1px solid var(--border);
        text-align: left;
    }

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

    .metric-value {
        font-size: 13px;
        margin-top: 0;
        text-align: right;
    }

    /* === GRID MANIFIESTO === */
    .grid-50-50 {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .grid-50-50 h2 { font-size: 30px; }

    .section-surface > .grid-50-50 {
        padding: 56px 20px;
    }

    /* === TIMELINE PASOS === */
    .steps-timeline { max-width: 100%; }

    .step {
        gap: 20px;
        padding: 24px 0;
    }

    /* === FOOTER === */
    .main-footer {
        padding: 48px 20px 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-contact { text-align: left; }
}

/* --- MÓVIL PEQUEÑO (max 480px) --- */
@media (max-width: 480px) {
    .main-nav { padding: 0 16px; }
    .logo-img { height: 24px; }

    .hero-section { padding: 56px 16px 40px; }
    .hero-title { font-size: 30px; }

    section { padding: 48px 16px; }
    section h2 { font-size: 24px; }

    .card, .price-card, .feature-block {
        padding: 24px 16px;
    }

    .cards-3col,
    .cards-2col,
    .features-grid,
    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .step { gap: 16px; }
    .step-number { min-width: 32px; }

    .main-footer { padding: 40px 16px 32px; }
}