/* ============================================
   XWareAI Data Analytics — Landing Page
   Technologies Ltda. | Branding oficial
   Colores: Negro #000000, Rojo #FF0000, Gris #3B4141, Blanco #FFFFFF
   ============================================ */

:root {
    /* Paleta corporativa */
    --color-black: #000000;
    --color-red: #FF0000;
    --color-gray: #3B4141;
    --color-white: #FFFFFF;
    --color-gray-light: #5A6060;
    --color-gray-dark: #1A1D1E;
    --color-gray-darker: #121415;
    --color-border: #3B4041;
    --color-red-dim: #C00100;
    --color-red-bright: #FF1A1A;

    /* Tipografía */
    --font-headline: 'Manrope', sans-serif;
    --font-body: 'Hanken Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Espaciado */
    --space-unit: 4px;
    --container-max: 1200px;
    --section-padding: 64px;
    --header-height: 72px;

    /* Radios */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 24px;
    color: var(--color-white);
    background-color: var(--color-gray-darker);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

/* ===== Skip link ===== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-red);
    color: var(--color-white);
    padding: 12px 24px;
    z-index: 1000;
    font-family: var(--font-headline);
    font-weight: 600;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ===== Container ===== */
.container {
    width: min(100% - 2rem, var(--container-max));
    margin: 0 auto;
}

/* ===== Tipografía ===== */
h1, h2, h3, h4 {
    font-family: var(--font-headline);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(28px, 5vw, 48px);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(24px, 4vw, 32px);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

p {
    line-height: 1.6;
}

/* ===== Botones ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-headline);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
    text-align: center;
    min-height: 44px;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-red-bright);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid var(--color-gray);
}

.btn-secondary:hover {
    border-color: var(--color-red);
    color: var(--color-red);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 36px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    min-height: 52px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-black);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
}

.header-container {
    width: min(100% - 2rem, var(--container-max));
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.logo-xwai {
    height: 32px;
    width: auto;
}

.logo-product {
    font-family: var(--font-headline);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    white-space: nowrap;
}

.header-nav {
    flex: 1;
}

.nav-list {
    display: flex;
    gap: 24px;
    justify-content: center;
}

.nav-list a {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-white);
    transition: color 0.2s;
    position: relative;
}

.nav-list a:hover {
    color: var(--color-red);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-bar {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: transform 0.2s, opacity 0.2s;
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ===== Hero ===== */
.hero {
    padding-top: calc(var(--header-height) + 48px);
    padding-bottom: var(--section-padding);
    background-color: var(--color-black);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    width: min(100% - 2rem, var(--container-max));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 6px 16px;
    font-size: 13px;
    font-family: var(--font-mono);
    color: var(--color-white);
    margin-bottom: 24px;
}

.badge-icon {
    width: 16px;
    height: 16px;
}

.hero-content h1 {
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-white);
    opacity: 0.85;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-examples {
    border-left: 2px solid var(--color-red);
    padding-left: 20px;
}

.examples-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-red);
    margin-bottom: 8px;
}

.examples-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.examples-list li {
    font-size: 14px;
    color: var(--color-white);
    opacity: 0.7;
}

/* Hero visual card */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-card {
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    overflow: hidden;
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background-color: var(--color-gray-darker);
    border-bottom: 1px solid var(--color-border);
}

.card-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
}

.dot-red { background-color: #FF5F57; }
.dot-yellow { background-color: #FFBD2E; }
.dot-green { background-color: #27C93F; }

.card-title-mono {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-white);
    opacity: 0.6;
    margin-left: 8px;
}

.hero-card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-bubble {
    border-radius: var(--radius-md);
    padding: 12px 16px;
}

.chat-user {
    background-color: var(--color-gray);
}

.chat-system {
    background-color: var(--color-gray-darker);
    border: 1px solid var(--color-border);
}

.chat-system code {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-red);
    line-height: 1.6;
}

.chat-response {
    background-color: rgba(255, 0, 0, 0.08);
    border: 1px solid rgba(255, 0, 0, 0.2);
}

.chat-label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    color: var(--color-white);
    opacity: 0.5;
    display: block;
    margin-bottom: 4px;
}

.chat-bubble p {
    font-size: 14px;
    color: var(--color-white);
}

/* ===== Sections ===== */
.section {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}

.section-dark {
    background-color: var(--color-gray);
}

.section-light {
    background-color: var(--color-white);
    color: var(--color-black);
}

.section-light h2,
.section-light h3,
.section-light h4 {
    color: var(--color-black);
}

.section-light p {
    color: var(--color-gray);
}

.section-cta {
    background-color: var(--color-black);
    text-align: center;
}

.section-intro {
    font-size: 18px;
    max-width: 720px;
    margin-bottom: 40px;
    opacity: 0.85;
}

.section-light .section-intro {
    color: var(--color-gray);
}

/* ===== Problema ===== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.problem-item {
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.problem-item h3 {
    color: var(--color-red);
    font-size: 16px;
}

.problem-item p {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 14px;
}

.value-proposition {
    background-color: var(--color-black);
    border: 1px solid var(--color-red);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.value-proposition h3 {
    color: var(--color-red);
}

.value-proposition p {
    color: var(--color-white);
    font-size: 16px;
}

/* ===== Funcionalidades ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: var(--radius-md);
    padding: 28px;
    transition: border-color 0.2s, transform 0.1s;
}

.feature-card:hover {
    border-color: var(--color-red);
}

.feature-number {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-red);
    margin-bottom: 12px;
}

.feature-card h3 {
    color: var(--color-black);
}

.feature-card p {
    color: var(--color-gray);
    font-size: 14px;
}

/* ===== Steps ===== */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-red);
    color: var(--color-white);
    font-family: var(--font-headline);
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--radius-full);
}

.step-content h3 {
    color: var(--color-white);
}

.step-content p {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 14px;
}

/* ===== Beneficios ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.benefit-item {
    background-color: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: var(--radius-md);
    padding: 24px;
}

.benefit-item h3 {
    color: var(--color-black);
    font-size: 16px;
}

.benefit-item p {
    color: var(--color-gray);
    font-size: 14px;
}

.differentiators {
    background-color: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: var(--radius-lg);
    padding: 32px;
}

.differentiators h3 {
    color: var(--color-black);
    margin-bottom: 16px;
}

.diff-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.diff-list li {
    color: var(--color-gray);
    font-size: 14px;
    padding-left: 20px;
    position: relative;
}

.diff-list li::before {
    content: "▸";
    color: var(--color-red);
    position: absolute;
    left: 0;
}

/* ===== Casos de uso ===== */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.usecase-card {
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: border-color 0.2s;
}

.usecase-card:hover {
    border-color: var(--color-red);
}

.usecase-card h3 {
    color: var(--color-red);
    font-size: 16px;
}

.usecase-card p {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 14px;
}

/* ===== Integraciones ===== */
.integrations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.integration-item {
    background-color: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
}

.integration-item h3 {
    color: var(--color-black);
    font-size: 16px;
}

.integration-item p {
    color: var(--color-gray);
    font-size: 13px;
}

/* ===== Seguridad ===== */
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.security-item {
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.security-item h3 {
    color: var(--color-red);
    font-size: 16px;
}

.security-item p {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 14px;
}

.architecture-components {
    background-color: var(--color-black);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.architecture-components h3 {
    color: var(--color-white);
    margin-bottom: 16px;
}

.components-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.components-list li {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-white);
    background-color: var(--color-gray);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
}

/* ===== CTA Mid ===== */
.section-cta h2 {
    margin-bottom: 12px;
}

.section-cta p {
    color: var(--color-white);
    opacity: 0.85;
    margin-bottom: 32px;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background-color: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-family: var(--font-headline);
    font-weight: 600;
    font-size: 16px;
    color: var(--color-black);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after {
    content: "+";
    font-size: 24px;
    color: var(--color-red);
    font-weight: 400;
    transition: transform 0.2s;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 24px 20px;
    color: var(--color-gray);
    font-size: 14px;
}

/* ===== Contacto ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-headline);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
}

.required {
    color: var(--color-red);
}

.form-group input,
.form-group select,
.form-group textarea {
    background-color: var(--color-gray-darker);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-white);
    transition: border-color 0.2s;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-red);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-white);
    opacity: 0.4;
}

.form-group select option {
    background-color: var(--color-gray-darker);
    color: var(--color-white);
}

.form-error {
    font-size: 12px;
    color: var(--color-red);
    min-height: 16px;
}

.form-check-group {
    flex-direction: row;
    align-items: flex-start;
    gap: 12px;
}

.form-check-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
    accent-color: var(--color-red);
}

.check-label {
    font-size: 13px;
    font-weight: 400;
    line-height: 1.5;
    opacity: 0.85;
    cursor: pointer;
}

.form-actions {
    margin-top: 8px;
}

.form-status {
    font-size: 14px;
    text-align: center;
    min-height: 20px;
}

/* Contacto directo */
.contact-direct {
    background-color: var(--color-gray-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.contact-direct h3 {
    color: var(--color-red);
}

.contact-direct p {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 14px;
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-link {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-white);
    transition: color 0.2s;
}

.contact-link:hover {
    color: var(--color-red);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-black);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    width: min(100% - 2rem, var(--container-max));
    margin: 0 auto;
    padding: 48px 0;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 48px;
}

.footer-logo {
    height: 48px;
    width: auto;
    margin-bottom: 16px;
}

.footer-tagline {
    color: var(--color-white);
    opacity: 0.7;
    font-size: 14px;
    max-width: 320px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    color: var(--color-white);
    font-size: 14px;
    margin-bottom: 12px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-col a {
    color: var(--color-white);
    opacity: 0.7;
    font-size: 14px;
    transition: color 0.2s, opacity 0.2s;
}

.footer-col a:hover {
    color: var(--color-red);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 20px 0;
}

.footer-bottom-container {
    width: min(100% - 2rem, var(--container-max));
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-white);
    opacity: 0.6;
}

.footer-powered {
    font-family: var(--font-mono);
}

/* ===== Focus visible ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
    outline: 2px solid var(--color-red);
    outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-visual {
        order: -1;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

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

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-black);
        border-bottom: 1px solid var(--color-border);
        padding: 24px;
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.3s, opacity 0.3s;
        pointer-events: none;
    }

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

    .nav-list {
        flex-direction: column;
        gap: 16px;
    }

    .menu-toggle {
        display: flex;
    }

    .header-actions .btn {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 40px;
    }

    .hero {
        padding-top: calc(var(--header-height) + 24px);
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 22px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .step {
        gap: 16px;
    }

    .step-number {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
}