/* ==========================================================================
   InfoVial — Estilos
   Paleta: verde bosque + crema cálido + naranja quemado
   Tipografías: Fraunces (display/logo) + Inter (cuerpo)
   ========================================================================== */

:root {
    --color-bg: #f7f3ec;            /* crema cálido */
    --color-surface: #fffdf8;       /* blanco hueso */
    --color-text: #1b2a22;          /* verde oscuro casi negro */
    --color-text-soft: #4a5a52;
    --color-text-muted: #8a9891;
    --color-border: #e3dccf;
    --color-primary: #2d5a3d;       /* verde bosque */
    --color-primary-soft: #3f7a53;
    --color-accent: #c25d2c;        /* naranja quemado */
    --color-accent-soft: #e07a47;
    --color-dark: #14251b;          /* casi negro verdoso */
    --shadow-sm: 0 2px 10px rgba(20, 37, 27, 0.05);
    --shadow-md: 0 10px 30px rgba(20, 37, 27, 0.08);
    --radius: 14px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

ul {
    list-style: none;
}

/* ==========================================================================
   Header
   ========================================================================== */

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(247, 243, 236, 0.88);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--color-border);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 700;
    font-size: 24px;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.logo span {
    color: var(--color-accent);
    font-style: italic;
    font-weight: 800;
}

.logo-art {
    position: relative;
    width: 30px;
    height: 30px;
}

.logo-circle,
.logo-square,
.logo-triangle {
    position: absolute;
    width: 12px;
    height: 12px;
}

.logo-circle {
    top: 0;
    left: 0;
    background: var(--color-primary);
    border-radius: 50%;
}

.logo-square {
    bottom: 0;
    left: 4px;
    background: var(--color-accent);
    border-radius: 2px;
}

.logo-triangle {
    top: 4px;
    right: 0;
    width: 0;
    height: 0;
    background: transparent;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 12px solid var(--color-dark);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-family: 'Inter', sans-serif;
    font-size: 14.5px;
    color: var(--color-text-soft);
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    position: relative;
    padding: 120px 0 140px;
    overflow: hidden;
}

.hero-art {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 340px;
    height: 340px;
    background: #b8d4c1;
    top: 10%;
    left: 5%;
}

.shape-2 {
    width: 280px;
    height: 280px;
    background: #f0c4a3;
    top: 55%;
    left: 25%;
    animation-delay: -4s;
}

.shape-3 {
    width: 320px;
    height: 320px;
    background: #d4e5d1;
    top: 15%;
    right: 8%;
    animation-delay: -7s;
}

.shape-4 {
    width: 240px;
    height: 240px;
    background: #e8c9a0;
    bottom: 8%;
    right: 22%;
    animation-delay: -10s;
}

.shape-5 {
    width: 200px;
    height: 200px;
    background: #c9dcc5;
    top: 42%;
    left: 48%;
    animation-delay: -13s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25%      { transform: translate(30px, -40px) scale(1.05); }
    50%      { transform: translate(-20px, 30px) scale(0.97); }
    75%      { transform: translate(40px, 20px) scale(1.03); }
}

.hero-content {
    position: relative;
    max-width: 820px;
    text-align: center;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-size: 12.5px;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 999px;
    background: rgba(45, 90, 61, 0.1);
    color: var(--color-primary);
    margin-bottom: 28px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hero h1 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: clamp(40px, 6.5vw, 70px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.035em;
    margin-bottom: 24px;
}

.highlight {
    font-style: italic;
    color: var(--color-accent);
    font-weight: 800;
}

.hero p {
    font-size: 18px;
    color: var(--color-text-soft);
    margin-bottom: 40px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.65;
}

.btn-explore {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    padding: 15px 36px;
    border-radius: 999px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 15px;
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
    box-shadow: 0 6px 20px rgba(45, 90, 61, 0.25);
}

.btn-explore:hover {
    background: var(--color-primary-soft);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(45, 90, 61, 0.3);
}

/* ==========================================================================
   Section header
   ========================================================================== */

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-tag {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-size: 12.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-header h2 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: clamp(34px, 4.8vw, 50px);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 20px;
}

.header-line {
    width: 50px;
    height: 2px;
    background: var(--color-accent);
    margin: 0 auto;
    border-radius: 2px;
}

/* ==========================================================================
   About
   ========================================================================== */

.about-section {
    padding: 110px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.about-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 40px 34px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.card-icon {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    background: rgba(45, 90, 61, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.about-card.values .card-icon {
    background: rgba(194, 93, 44, 0.1);
    color: var(--color-accent);
}

.about-card.commitment .card-icon {
    background: rgba(20, 37, 27, 0.08);
    color: var(--color-dark);
}

.card-icon svg {
    width: 26px;
    height: 26px;
}

.about-card h3 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.015em;
}

.about-card p {
    color: var(--color-text-soft);
    font-size: 15.5px;
}

.values-list {
    color: var(--color-text-soft);
    font-size: 15.5px;
}

.values-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.values-list li:last-child {
    border-bottom: none;
}

.values-list strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* ==========================================================================
   Education
   ========================================================================== */

.education-section {
    padding: 110px 0;
    background: #ede6d6;
}

.edu-article {
    background: var(--color-surface);
    border-radius: 20px;
    padding: 56px 52px;
    margin-bottom: 44px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.edu-article:last-child {
    margin-bottom: 0;
}

.article-header {
    display: flex;
    align-items: center;
    gap: 26px;
    padding-bottom: 30px;
    margin-bottom: 38px;
    border-bottom: 1px solid var(--color-border);
}

.article-number {
    flex: 0 0 auto;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Fraunces', Georgia, serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.article-header h3 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.article-content > * + * {
    margin-top: 38px;
}

.article-intro p {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 20px;
    font-style: italic;
    color: var(--color-text);
    border-left: 3px solid var(--color-accent);
    padding-left: 22px;
    line-height: 1.55;
}

.art-period,
.technique-section,
.theory-section,
.appreciation-section {
    padding-top: 8px;
}

.art-period h4,
.technique-section h4,
.theory-section h4,
.appreciation-section h4 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.015em;
    color: var(--color-primary);
}

.art-period p,
.technique-section p,
.theory-section p,
.appreciation-section p {
    color: var(--color-text-soft);
    font-size: 16px;
    margin-bottom: 18px;
    line-height: 1.75;
}

.art-period p:last-child,
.technique-section p:last-child,
.theory-section p:last-child,
.appreciation-section p:last-child {
    margin-bottom: 0;
}

.art-period strong,
.technique-section strong,
.theory-section strong,
.appreciation-section strong {
    color: var(--color-text);
    font-weight: 600;
}

.theory-section ul,
.appreciation-section ul {
    color: var(--color-text-soft);
    font-size: 16px;
    margin: 8px 0 0 22px;
}

.theory-section ul li,
.appreciation-section ul li {
    list-style: disc;
    padding: 6px 0;
}

.appreciation-section ul li strong {
    color: var(--color-primary);
}

/* ==========================================================================
   CTA
   ========================================================================== */

.cta-section {
    padding: 120px 0;
    text-align: center;
    background: var(--color-dark);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(194, 93, 44, 0.15);
    border-radius: 50%;
    filter: blur(80px);
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(45, 90, 61, 0.25);
    border-radius: 50%;
    filter: blur(80px);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: clamp(30px, 4.2vw, 44px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 780px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 680px;
    margin: 0 auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
    background: #0f1a13;
    color: #9aa89f;
    padding: 74px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-about p {
    color: #7a8880;
    font-size: 14.5px;
    max-width: 430px;
    margin-top: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 700;
    font-size: 22px;
    color: #fff;
}

.footer-logo span {
    color: var(--color-accent-soft);
    font-style: italic;
    font-weight: 800;
}

.footer-section h4 {
    font-family: 'Inter', sans-serif;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.footer-section ul li {
    margin-bottom: 11px;
}

.footer-section a {
    color: #7a8880;
    font-size: 14.5px;
}

.footer-section a:hover {
    color: var(--color-accent-soft);
}

.footer-bottom {
    border-top: 1px solid #1e2e24;
    padding-top: 26px;
    text-align: center;
    color: #5a6862;
    font-size: 13.5px;
}

/* ==========================================================================
   Páginas legales
   ========================================================================== */

.legal-section {
    padding: 80px 0 100px;
    min-height: 70vh;
}

.legal-content {
    max-width: 820px;
    margin: 0 auto;
    background: var(--color-surface);
    padding: 60px 56px;
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.legal-content h1 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 24px;
}

.legal-content h2 {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 24px;
    font-weight: 700;
    margin: 34px 0 14px;
    letter-spacing: -0.015em;
    color: var(--color-primary);
}

.legal-content p,
.legal-content li {
    color: var(--color-text-soft);
    font-size: 16px;
    margin-bottom: 14px;
    line-height: 1.75;
}

.legal-content ul {
    margin-left: 22px;
    margin-bottom: 14px;
}

.legal-content ul li {
    list-style: disc;
    padding: 4px 0;
    margin-bottom: 4px;
}

.legal-content strong {
    color: var(--color-text);
}

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

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 820px) {
    .nav-links {
        gap: 18px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .nav-links a {
        font-size: 13.5px;
    }

    .hero {
        padding: 70px 0 90px;
    }

    .edu-article {
        padding: 38px 24px;
    }

    .article-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

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

    .legal-content {
        padding: 40px 28px;
    }
}

@media (max-width: 520px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .nav-links {
        gap: 12px;
    }

    .about-card,
    .edu-article {
        padding: 28px 20px;
    }
}