@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-app: #050505;
    --bg-surface: #111112;
    --bg-elevated: rgba(255, 255, 255, 0.04);
    --bg-elevated-hover: rgba(255, 255, 255, 0.07);
    --text-app: #f5f5f5;
    --text-muted: #a3a3a3;
    --text-faint: #6b6b6b;
    --border-app: #262626;
    --border-strong: #3a3a3a;
    --accent-rgb: 255, 255, 255;

    --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px;
    --space-8: 32px; --space-12: 48px; --space-16: 64px; --space-24: 96px; --space-32: 128px;

    --fs-sm: 14px; --fs-base: 16px; --fs-lg: 19px;
    --fs-2xl: clamp(26px, 3.4vw, 34px);
    --fs-3xl: clamp(34px, 4.6vw, 48px);
    --fs-hero: clamp(42px, 7vw, 76px);

    --radius: 14px;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}
html.light {
    --bg-app: #fafafa;
    --bg-surface: #f0f0f0;
    --bg-elevated: rgba(0, 0, 0, 0.035);
    --bg-elevated-hover: rgba(0, 0, 0, 0.06);
    --text-app: #0a0a0a;
    --text-muted: #52525b;
    --text-faint: #a1a1aa;
    --border-app: #e4e4e7;
    --border-strong: #d4d4d8;
    --accent-rgb: 0, 0, 0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg-app);
    color: var(--text-app);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .landing-wordmark {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    margin: 0;
}

a { color: var(--text-app); }
.container { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-8); }

/* ---------- Header ---------- */
.landing-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px var(--space-8);
    border-bottom: 1px solid var(--border-app);
    background: color-mix(in srgb, var(--bg-app) 80%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.landing-wordmark {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.landing-wordmark img {
    height: 34px;
    width: auto;
    display: block;
}
.header-controls { display: flex; align-items: center; gap: var(--space-4); }
.lang-switch { display: flex; gap: 2px; background: var(--bg-elevated); border-radius: 999px; padding: 3px; }
.lang-switch a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 6px 11px;
    border-radius: 999px;
    transition: color .2s var(--ease), background .2s var(--ease);
}
.lang-switch a:hover { color: var(--text-app); }
.lang-switch a.lang-activo { color: var(--bg-app); background: var(--text-app); }
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-app);
    color: var(--text-muted);
    border-radius: 999px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 12px;
    font-family: var(--font-body);
    font-weight: 500;
    transition: border-color .2s var(--ease), color .2s var(--ease);
}
.theme-toggle:hover { border-color: var(--border-strong); color: var(--text-app); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    text-align: center;
    padding: var(--space-32) var(--space-8) var(--space-24);
    border-bottom: 1px solid var(--border-app);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    width: 900px;
    height: 900px;
    transform: translateX(-50%);
    background: radial-gradient(circle, color-mix(in srgb, var(--text-app) 7%, transparent) 0%, transparent 65%);
    pointer-events: none;
}
.hero-inner { position: relative; max-width: 720px; margin: 0 auto; }
.hero h1 {
    font-size: var(--fs-hero);
    font-weight: 700;
    line-height: 1.04;
    margin-bottom: var(--space-6);
}
.hero p {
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto var(--space-12);
    font-size: var(--fs-lg);
    line-height: 1.55;
}
.hero img.hero-media {
    max-width: 100%;
    margin-bottom: var(--space-12);
    border-radius: var(--radius);
    border: 1px solid var(--border-app);
    position: relative;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--text-app);
    color: var(--bg-app);
    padding: 15px 26px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.01em;
    transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary::after { content: '→'; transition: transform .25s var(--ease); }
.btn-primary:hover { transform: translateY(-2px) scale(1.02); }
.btn-primary:hover::after { transform: translateX(3px); }

/* ---------- Section chrome ---------- */
.section { padding: var(--space-24) var(--space-8); border-bottom: 1px solid var(--border-app); }
.section-head { max-width: 620px; margin: 0 auto var(--space-16); text-align: center; }
.section-index {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--text-faint);
    margin-bottom: var(--space-4);
}
.section-head h2 { font-size: var(--fs-3xl); font-weight: 600; margin-bottom: var(--space-3); }
.section-head p { color: var(--text-muted); font-size: var(--fs-lg); line-height: 1.55; }

.reveal { transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js-ready .reveal { opacity: 0; transform: translateY(18px); }
.js-ready .reveal.reveal-visible { opacity: 1; transform: translateY(0); }

/* ---------- Tarjetas (pilares / beneficios) ---------- */
.tarjetas-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
}
.tarjeta {
    flex: 1 1 280px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-app);
    border-radius: var(--radius);
    padding: var(--space-8) var(--space-6);
    transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.tarjeta:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    background: var(--bg-elevated-hover);
}
.tarjeta-numero {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-faint);
    display: block;
    margin-bottom: var(--space-4);
}
.tarjeta img { width: 44px; height: 44px; object-fit: contain; margin-bottom: var(--space-4); border-radius: 8px; }
.tarjeta h3 { font-size: 20px; font-weight: 600; margin: 0 0 var(--space-2); }
.tarjeta p { color: var(--text-muted); margin: 0; font-size: 15px; line-height: 1.6; }

/* ---------- Logos (aliados / clientes / proveedores) ---------- */
.logos-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    justify-content: center;
}
.logo-item {
    flex: 0 1 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 88px;
    border: 1px solid var(--border-app);
    border-radius: 10px;
    padding: var(--space-4);
    text-decoration: none;
    transition: border-color .3s var(--ease);
}
.logo-item:hover { border-color: var(--border-strong); }
.logo-item img {
    max-width: 100%;
    max-height: 40px;
    filter: grayscale(1) opacity(0.55);
    transition: filter .3s var(--ease);
}
.logo-item:hover img { filter: grayscale(0) opacity(1); }
.logo-item.logo-placeholder {
    color: var(--text-faint);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-align: center;
}

/* ---------- Texto libre ---------- */
.texto-libre { max-width: 680px; margin: 0 auto; text-align: center; }
.texto-libre h2 { font-size: var(--fs-3xl); font-weight: 600; margin-bottom: var(--space-4); }
.texto-libre p { color: var(--text-muted); font-size: var(--fs-lg); line-height: 1.6; white-space: pre-line; }

/* ---------- CTA ---------- */
.cta-section {
    text-align: center;
    padding: var(--space-24) var(--space-8);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-app);
}
.cta-section h2 { font-size: var(--fs-3xl); font-weight: 600; margin: 0 auto var(--space-8); max-width: 560px; text-align: center; }

/* ---------- Footer ---------- */
.landing-footer {
    text-align: center;
    padding: var(--space-12) var(--space-8);
    color: var(--text-faint);
    font-size: 13px;
}

/* ---------- Panel admin (sin cambios de fondo, solo ajustes menores) ---------- */
.auth-box {
    max-width: 380px;
    margin: 96px auto;
    padding: var(--space-8);
    border: 1px solid var(--border-app);
    border-radius: var(--radius);
    background: var(--bg-elevated);
}
.auth-box h1 { font-size: 20px; margin-top: 0; font-weight: 600; }
.auth-box form, .panel form { display: flex; flex-direction: column; gap: 14px; }
.auth-box label, .panel label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    font-family: var(--font-body);
}
.auth-box input, .panel input, .panel textarea, .panel select {
    background: var(--bg-surface);
    border: 1px solid var(--border-app);
    color: var(--text-app);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-family: var(--font-body);
}
.auth-box button, .panel button {
    background: var(--text-app);
    color: var(--bg-app);
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-body);
}
.btn-secundario {
    background: transparent !important;
    color: var(--text-app) !important;
    border: 1px solid var(--border-app) !important;
}
.btn-peligro { background: transparent !important; color: #ff6b6b !important; border: 1px solid #4a2323 !important; }
.error { color: #ff6b6b; font-size: 14px; }
.ok { color: #6bff9e; font-size: 14px; }
.warn { color: #ffd76b; font-size: 14px; }

.panel-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px var(--space-8);
    border-bottom: 1px solid var(--border-app);
    font-family: var(--font-body);
}
.panel-nav-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: 0.02em; font-family: var(--font-display); }
.panel-nav-brand img { height: 22px; width: auto; display: block; }
.panel-nav a { text-decoration: none; color: var(--text-muted); font-size: 14px; margin-right: 20px; }
.panel-nav a:hover { color: var(--text-app); }
.panel-nav-user { margin-left: auto; font-size: 13px; color: var(--text-muted); }

.panel { max-width: 820px; margin: 40px auto; padding: 0 24px; font-family: var(--font-body); }
.seccion-builder {
    border: 1px solid var(--border-app);
    border-radius: var(--radius);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    background: var(--bg-elevated);
}
.seccion-builder-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-app);
}
.seccion-tipo-tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-faint);
    background: var(--bg-surface);
    padding: 4px 10px;
    border-radius: 6px;
}
.seccion-controles { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.seccion-controles input[type="number"] { width: 56px; }
.campo-landing { margin-bottom: 16px; }
.campo-etiqueta { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.campo-idioma { margin-bottom: 10px; }
.campo-idioma .idioma-tag {
    display: inline-block;
    flex: none;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-faint);
    margin-bottom: 4px;
    padding-top: 0;
}
.campo-idioma input, .campo-idioma textarea {
    display: block;
    width: 100%;
    flex: none;
}
.nota-campo { font-size: 12px; color: var(--text-faint); margin: 4px 0 0; }
.preview-imagen { max-width: 140px; display: block; margin-bottom: 8px; border-radius: 8px; border: 1px solid var(--border-app); }

.item-builder {
    border: 1px solid var(--border-app);
    border-radius: 10px;
    padding: var(--space-4);
    margin-bottom: var(--space-3);
    background: var(--bg-surface);
}
.item-builder-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 12px; color: var(--text-faint); }

.tabla-admin { width: 100%; border-collapse: collapse; margin-bottom: 32px; font-size: 14px; }
.tabla-admin th, .tabla-admin td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border-app); }

@media (max-width: 640px) {
    .hero { padding: var(--space-24) var(--space-4) var(--space-16); }
    .section { padding: var(--space-16) var(--space-4); }
    .landing-header { padding: 14px var(--space-4); }
}