/* DecesosIA - Clean Minimal Design (Mobile-First) */

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

:root {
    --black: #1d1d1f;
    --gray-dark: #424245;
    --gray: #86868b;
    --gray-light: #d2d2d7;
    --white: #fbfbfd;
    --bg: #ffffff;

    --font-main: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;

    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-main);
    font-size: 17px;
    line-height: 1.5;
    color: var(--black);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* Remove grain - keep it clean */
.grain { display: none; }

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 32px;
    line-height: 1.15;
}

h2 {
    font-size: 28px;
    line-height: 1.15;
    margin-bottom: 16px;
}

h3 {
    font-size: 21px;
    line-height: 1.2;
    margin-bottom: 12px;
}

h4 {
    font-size: 17px;
    line-height: 1.3;
    margin-bottom: 8px;
}

p {
    margin-bottom: 16px;
    color: var(--gray-dark);
}

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

em {
    font-style: normal;
    color: var(--gray);
}

.lead {
    font-size: 19px;
    line-height: 1.5;
    color: var(--gray-dark);
}

/* Layout */
.container {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

.section {
    padding: var(--space-lg) 0;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-light);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 48px;
    padding: 0 var(--space-sm);
    max-width: 980px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    color: var(--black);
}

.logo-accent {
    color: var(--gray);
}

.nav-links {
    display: none;
    list-style: none;
}

.nav-highlight {
    background: var(--black);
    color: white !important;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
    -webkit-tap-highlight-color: transparent;
}

.menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--black);
    border-radius: 1px;
    transition: 0.3s ease;
}

.menu-toggle.active span:first-child {
    transform: rotate(45deg) translate(2.5px, 2.5px);
}

.menu-toggle.active span:last-child {
    transform: rotate(-45deg) translate(2.5px, -2.5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    padding: 24px 16px;
    z-index: 999;
    overflow-y: auto;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 16px 0;
    font-size: 17px;
    font-weight: 400;
    color: #1d1d1f;
    border-bottom: 1px solid #d2d2d7;
    text-decoration: none;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu .nav-highlight {
    display: inline-block;
    margin-top: 24px;
    padding: 12px 24px;
    background: #1d1d1f;
    color: #ffffff !important;
    border-radius: 24px;
    border-bottom: none;
    font-size: 15px;
    font-weight: 500;
}

/* Hero */
.hero {
    padding: 100px var(--space-sm) var(--space-lg);
    text-align: center;
}

.hero-eyebrow {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray);
    margin-bottom: 16px;
}

.hero-title {
    margin-bottom: 16px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description {
    font-size: 17px;
    line-height: 1.5;
    color: var(--gray-dark);
    max-width: 500px;
    margin: 0 auto 32px;
}

.hero-aside {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    color: var(--black);
}

.stat-label {
    font-size: 12px;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.scroll-indicator {
    display: none;
}

/* Sections */
.section-header {
    margin-bottom: var(--space-md);
}

.section-number {
    font-size: 12px;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.section-number-light {
    color: rgba(255, 255, 255, 0.5);
}

/* Propuesta */
.propuesta-intro {
    margin-bottom: var(--space-md);
}

.coberturas-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.cobertura-group h3 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-light);
    margin-bottom: 0;
}

.cobertura-list {
    list-style: none;
}

.cobertura-list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-light);
    font-size: 17px;
    line-height: 1.4;
}

.cobertura-name {
    display: block;
    color: var(--black);
    margin-bottom: 4px;
}

.cobertura-detail {
    font-size: 15px;
    color: var(--gray);
}

.cobertura-optional .cobertura-list li {
    color: var(--gray-dark);
}

/* Tecnología */
.section-tecnologia {
    background: var(--white);
}

.tech-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.tech-quote {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--black);
    margin: 0;
    padding-left: 16px;
    border-left: 3px solid var(--gray-light);
}

.tech-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tech-feature {
    padding: 20px;
    background: var(--bg);
    border: 1px solid var(--gray-light);
    border-radius: 12px;
}

.tech-feature h4 {
    color: var(--black);
    margin-bottom: 8px;
}

.tech-feature p {
    font-size: 15px;
    color: var(--gray-dark);
    margin: 0;
    line-height: 1.5;
}

/* Sandbox */
.sandbox-info {
    margin-bottom: var(--space-md);
}

.sandbox-data {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.data-item {
    padding: 16px 0;
    border-top: 1px solid var(--black);
}

.data-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    margin-bottom: 4px;
}

.data-value {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 4px;
}

.data-description {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.4;
}

/* DIU Section */
.section-diu {
    background: var(--black);
    color: white;
    padding: var(--space-lg) 0;
}

.diu-header {
    text-align: center;
    margin-bottom: var(--space-md);
}

.diu-header h2 {
    color: white;
}

.diu-header em {
    color: var(--gray);
}

.diu-subtitle {
    font-size: 15px;
    color: var(--gray);
}

.diu-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* Accordion */
.accordion-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.accordion-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    font-size: 17px;
    cursor: pointer;
    list-style: none;
    -webkit-tap-highlight-color: transparent;
}

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

.accordion-title {
    flex: 1;
    padding-right: 16px;
}

.accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background: white;
    transition: 0.3s ease;
}

.accordion-icon::before {
    width: 14px;
    height: 2px;
    top: 9px;
    left: 3px;
}

.accordion-icon::after {
    width: 2px;
    height: 14px;
    top: 3px;
    left: 9px;
}

.accordion-item[open] .accordion-icon::after {
    transform: rotate(90deg);
    opacity: 0;
}

.accordion-content {
    padding-bottom: 20px;
}

.accordion-content p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray);
    margin: 0;
}

/* DIU Sidebar */
.diu-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.diu-download {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
}

.diu-download p {
    font-size: 15px;
    color: var(--gray);
    margin-bottom: 16px;
}

.btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: white;
    color: var(--black);
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
    transition: opacity 0.2s;
}

.btn-download:active {
    opacity: 0.7;
}

.diu-contact {
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
}

.diu-contact h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    margin-bottom: 8px;
}

.diu-contact > p {
    font-size: 15px;
    color: var(--gray);
    margin-bottom: 16px;
}

.contact-link {
    display: block;
    color: white;
    font-size: 17px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    -webkit-tap-highlight-color: transparent;
}

.contact-link:last-child {
    border-bottom: none;
}

/* Footer */
.footer {
    background: var(--black);
    color: white;
    padding: var(--space-lg) 0 var(--space-md);
}

.footer-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 600;
}

.footer-logo em {
    color: var(--gray);
}

.footer-brand p {
    font-size: 15px;
    color: var(--gray);
    margin-top: 8px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.footer-col h5 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    margin-bottom: 12px;
}

.footer-col p,
.footer-col a {
    display: block;
    font-size: 15px;
    color: var(--gray);
    margin-bottom: 8px;
    line-height: 1.4;
}

.footer-bottom {
    padding-top: var(--space-md);
    text-align: center;
}

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

/* Legal Pages */
.legal-page {
    padding: 100px var(--space-sm) var(--space-lg);
}

.legal-page h1 {
    font-size: 28px;
    margin-bottom: 8px;
}

.legal-updated {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: var(--space-md);
}

.legal-content h2 {
    font-size: 21px;
    margin-top: var(--space-md);
    margin-bottom: 12px;
}

.legal-content h2:first-of-type {
    margin-top: 0;
}

.legal-content ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.legal-content li {
    margin-bottom: 8px;
    line-height: 1.5;
    color: var(--gray-dark);
}

.legal-content a {
    color: var(--black);
    text-decoration: underline;
}

.legal-entity {
    background: var(--white);
    padding: 16px;
    margin-bottom: 12px;
    border-left: 3px solid var(--gray-light);
}

.legal-entity h4 {
    margin-bottom: 8px;
}

.legal-entity p {
    font-size: 15px;
    margin: 0;
}

.legal-contact {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--gray-light);
}

/* ========================================
   TABLET & DESKTOP (min-width: 768px)
   ======================================== */

@media (min-width: 768px) {
    :root {
        --space-lg: 80px;
        --space-xl: 120px;
    }

    body {
        font-size: 17px;
    }

    h1 {
        font-size: 48px;
    }

    h2 {
        font-size: 40px;
        margin-bottom: 24px;
    }

    h3 {
        font-size: 24px;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .nav {
        height: 52px;
        padding: 0 var(--space-md);
    }

    .menu-toggle {
        display: none;
    }

    .nav-links {
        display: flex;
        gap: 32px;
        align-items: center;
    }

    .nav-links a {
        font-size: 14px;
        color: var(--gray-dark);
        transition: color 0.2s;
    }

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

    .hero {
        padding: 160px var(--space-md) var(--space-xl);
    }

    .hero-title {
        font-size: 56px;
    }

    .hero-description {
        font-size: 21px;
        line-height: 1.4;
    }

    .hero-aside {
        gap: var(--space-lg);
    }

    .stat-number {
        font-size: 48px;
    }

    .scroll-indicator {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
        margin-top: var(--space-lg);
        color: var(--gray);
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.1em;
    }

    .scroll-indicator svg {
        animation: bounce 2s infinite;
    }

    @keyframes bounce {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(6px); }
    }

    .coberturas-wrapper {
        flex-direction: row;
        gap: var(--space-lg);
    }

    .cobertura-group {
        flex: 1;
    }

    .tech-grid {
        flex-direction: row;
        gap: var(--space-lg);
        align-items: flex-start;
    }

    .tech-main {
        flex: 1;
    }

    .tech-quote {
        font-size: 28px;
        padding-left: 24px;
    }

    .tech-features {
        flex: 1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .sandbox-data {
        grid-template-columns: repeat(4, 1fr);
    }

    .diu-grid {
        flex-direction: row;
        gap: var(--space-lg);
    }

    .diu-accordion {
        flex: 1;
    }

    .diu-sidebar {
        width: 320px;
        flex-shrink: 0;
    }

    .footer-grid {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }

    .footer-links {
        display: flex;
        gap: var(--space-lg);
    }
}

/* ========================================
   LARGE DESKTOP (min-width: 1024px)
   ======================================== */

@media (min-width: 1024px) {
    h1 {
        font-size: 64px;
    }

    h2 {
        font-size: 48px;
    }

    .hero-title {
        font-size: 72px;
    }

    .hero-description {
        font-size: 24px;
    }
}