/* ==========================================================================
   SAAS E-COMMERCE GROWTH - DESIGN SYSTEM
   BEM Methodology | CSS Variables | Mobile First
   ========================================================================== */

:root {
    /* 🎨 BRAND COLORS (TiendaNube + Shopify) */
    --color-primary: #1E63FF;     /* Blue Tiendanube (Authoity, Tech) */
    --color-accent: #95BF47;      /* Green Shopify (Action, Growth, Sales) */
    --color-accent-hover: #7EAF2E;
    
    /* 🌆 BACKGROUNDS (Deep Dark SaaS) */
    --bg-base: #0B0F1A;           /* Deepest dark */
    --bg-surface: #121829;        /* Cards, panels */
    --bg-surface-elevated: #1A233A; /* Hover states, modals */
    
    /* ✍🏻 TYPOGRAPHY COLORS */
    --text-dominant: #E6EAF2;     /* Headings, high emphasis */
    --text-soft: #A0A7B8;         /* Body, low emphasis */
    --text-inverse: #000000;      /* For over bright buttons */
    
    /* 💡 GLOWS & GRADIENTS */
    --gradient-brand: linear-gradient(135deg, #3A7DF1 0%, #00C9A7 100%);
    --glow-primary: rgba(30, 99, 255, 0.4);
    --glow-accent: rgba(149, 191, 71, 0.4);
    
    /* 📏 SPACING & BORDERS */
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-round: 50px;
    
    --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px var(--glow-primary);
    
    /* 🔡 TYPOGRAPHY SYSTEM */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --layout-max-width: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-soft);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* THE ABSTRACT MESH GRADIENT GLOBAL BACKDROP */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: -999;
    background: 
        radial-gradient(circle at 15% 15%, rgba(30, 99, 255, 0.15) 0%, transparent 40%),  /* TiendaNube Blue Glow */
        radial-gradient(circle at 85% 85%, rgba(149, 191, 71, 0.1) 0%, transparent 40%); /* Shopify Green Glow */
}

/* ==========================================================================
   TYPOGRAPHY HIERARCHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-dominant);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.heading-1 {
    font-size: clamp(32px, 4.5vw, 48px); /* slightly smaller to fit above fold */
    font-weight: 800;
    margin-bottom: 40px;
    line-height: 1.1;
}

.heading-2 {
    font-size: clamp(28px, 4vw, 36px); /* ~32px */
    margin-bottom: 15px;
}

.heading-3 {
    font-size: clamp(20px, 3vw, 26px); /* ~24px */
    margin-bottom: 16px;
}

p {
    font-size: 1rem; /* 16px base line */
    margin-bottom: 16px;
}

.text-gradient {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding-bottom: 0.15em; /* Previene el corte de las letras y, p, g */
}

/* ==========================================================================
   LAYOUT & UTILITIES
   ========================================================================== */
.container {
    max-width: var(--layout-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.text-center { text-align: center; }

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn--primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 15px var(--glow-primary);
}

.btn--primary:hover {
    background-color: #1a56e6;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow-primary);
}

.btn--accent {
    background-color: var(--color-accent);
    color: var(--text-inverse); /* High contrast */
    box-shadow: 0 4px 15px var(--glow-accent);
    font-weight: 700;
}

.btn--accent:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow-accent);
}

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

.btn--outline:hover {
    background-color: var(--bg-surface-elevated);
    border-color: var(--text-dominant);
}

.btn--full {
    width: 100%;
}

.btn--stacked {
    flex-direction: column;
}

/* --- CARDS --- */
.card {
    background-color: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.05); /* Slight glassmorphic edge */
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(30, 99, 255, 0.3);
}

/* --- BADGES --- */
.badge {
    display: inline-block;
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-round);
    background-color: rgba(30, 99, 255, 0.15);
    color: var(--color-primary);
    margin-bottom: 20px;
    border: 1px solid rgba(30, 99, 255, 0.3);
}

.badge--success {
    background-color: rgba(149, 191, 71, 0.15);
    color: var(--color-accent);
    border-color: rgba(149, 191, 71, 0.3);
}

/* --- ANIMATIONS --- */
@keyframes pulse-btn {
    0% { box-shadow: 0 0 0 0 rgba(149, 191, 71, 0.7); }
    70% { box-shadow: 0 0 0 20px rgba(149, 191, 71, 0); }
    100% { box-shadow: 0 0 0 0 rgba(149, 191, 71, 0); }
}

.btn--pulse {
    animation: pulse-btn 2.5s infinite;
}

/* --- REVIEW WRAPPER (Social Proof) --- */
.review-block {
    background-color: rgba(11, 15, 26, 0.6);
    border-top: 1px solid rgba(30, 99, 255, 0.15);
    border-bottom: 1px solid rgba(30, 99, 255, 0.15);
    padding: 80px 24px;
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* --- LEGAL DISCLAIMER --- */
.disclaimer-box {
    background: rgba(18, 24, 41, 0.8);
    border-left: 4px solid var(--color-primary);
    padding: 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    text-align: left;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* ==========================================================================
   SPECIFIC SECTIONS & UI MODULES
   ========================================================================== */

/* --- NAVBAR --- */
.header {
    padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    background: rgba(11, 15, 26, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    color: var(--text-dominant);
    font-size: 1.25rem;
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -0.02em;
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    padding: 60px 0 40px 0; /* Drásticamente reducido para subir todo */
    overflow: hidden;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr; /* Da mas espacio al texto, achicando columna de img */
    gap: 32px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.hero__content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero__subtitle {
    font-size: 1.05rem; 
    color: var(--text-soft);
    margin-bottom: 24px;
    max-width: 100%;
}

.hero__image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    padding: 12px;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: var(--shadow-glow);
    max-width: 450px; /* Frenamos rotundamente el tamaño de la imagen */
    margin: 0 auto;
}

.hero__image-wrapper img {
    border-radius: 8px;
    width: 100%;
    height: auto;
    display: block; /* Evita que queden margenes fantasmas */
}

@media (max-width: 900px) {
    .hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero__content {
        align-items: center;
    }
    .hero__subtitle {
        margin: 0 auto 32px auto;
    }
    .pricing-block {
        align-items: center;
    }
}

/* --- PRICING CTA (CRO FOCUSED) --- */
.pricing-block {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    max-width: 400px;
}

.pricing-block__price {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    gap: 8px;
}

@media (max-width: 900px) {
    .pricing-block__price {
        justify-content: center;
    }
}

.pricing-block__amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-dominant);
}

.pricing-block__currency {
    font-size: 1.25rem;
    color: var(--text-soft);
    font-weight: 600;
}

.pricing-block__features {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
}

.integration-logos {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 24px;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-soft);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.integration-logos__pack {
    display: flex;
    gap: 16px;
    font-weight: 800;
    font-size: 0.9rem;
}

/* --- FEATURES GRID --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

@media (min-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr); /* 2x2 para no tener widow cards (cortes) */
    }
    .grid-3 {
        grid-template-columns: repeat(3, 1fr); /* 3 justos para Pain Points */
    }
}

.feature-item {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item__icon {
    width: 48px;
    height: 48px;
    background: rgba(30, 99, 255, 0.1);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* --- DASHBOARD UI (AULA VIRTUAL) --- */
.dashboard-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.dashboard-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--text-dominant);
}

/* File Upload Zone */
.upload-zone {
    border: 2px dashed rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 60px 24px;
    text-align: center;
    background-color: rgba(18, 24, 41, 0.5);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--color-primary);
    background-color: rgba(30, 99, 255, 0.05);
}

.upload-zone input[type="file"] {
    display: none;
}

/* Data Cards Segments */
.segment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.segment-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.segment-card__title {
    font-size: 1.1rem;
    color: var(--text-dominant);
    margin-bottom: 8px;
}

.segment-card__metric {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
}

/* --- MODALS --- */
dialog.modal {
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-surface);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: var(--text-soft);
    max-width: 450px;
    width: 90%;
    box-shadow: 0 25px 100px rgba(0,0,0,0.8);
    backdrop-filter: blur(20px);
}

dialog.modal::backdrop {
    background: rgba(11, 15, 26, 0.8);
    backdrop-filter: blur(5px);
}

.modal-close {
    position: absolute;
    top: 16px; right: 16px;
    background: none; border: none;
    color: var(--text-soft);
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-input {
    background: var(--bg-base);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 14px 16px;
    color: var(--text-dominant);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* --- FOOTER --- */
.footer {
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: var(--bg-base);
    color: var(--text-soft);
    font-size: 0.875rem;
}

/* Helpers / Misc */
.hidden { display: none !important; }
.coupon-message { font-size: 0.875rem; margin-top: 12px; font-weight: 600; }
.error-text { color: #EF4444; }
.success-text { color: var(--color-accent); }

/* ==========================================================================
   AULA / DASHBOARD COMPONENTS
   ========================================================================== */

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 40px;
    background: rgba(18, 24, 41, 0.6);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dashboard-user {
    display: flex;
    align-items: center;
    gap: 24px;
    color: var(--text-dominant);
}

/* Zona de Arrastre (Drag & Drop) */
.upload-zone {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 60px 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
    margin-top: 24px;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--color-primary);
    background: rgba(30, 99, 255, 0.05);
}

.upload-zone input[type="file"] {
    display: none;
}

/* Grilla de Segmentos Generados */
.segment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 1024px) {
    .segment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .segment-grid {
        grid-template-columns: 1fr;
    }
}

.segment-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background-color: var(--bg-surface-elevated);
    border: 1px solid rgba(255,255,255,0.05);
}

.segment-card:hover {
    border-color: rgba(30, 99, 255, 0.5);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.segment-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dominant);
}

.segment-card__metric {
    font-size: 2.8rem;
    font-weight: 800;
    color: white;
    font-family: var(--font-sans);
    letter-spacing: -1px;
}
/* ==========================================================================
   FAQ & ACCORDION (DETAILS / SUMMARY)
   ========================================================================== */
details.accordion {
    background: var(--bg-surface-elevated);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    transition: all 0.3s ease;
    overflow: hidden;
}

details.accordion[open] {
    border-color: rgba(30, 99, 255, 0.4);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

details.accordion summary {
    padding: 20px 24px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-dominant);
    cursor: pointer;
    list-style: none; /* remove default arrow */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

details.accordion summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform 0.3s ease;
}

details.accordion[open] summary::after {
    transform: rotate(45deg);
}

.accordion__content {
    padding: 0 24px 24px 24px;
    color: var(--text-soft);
    line-height: 1.6;
    border-top: 1px solid rgba(255,255,255,0.02);
    margin-top: 8px;
    padding-top: 16px;
}

.accordion__content strong {
    color: var(--text-dominant);
}