/* ═════════════════════════════════════════════════════════════════════════
   INVYTA.events · Hoja de estilos global
   Estilo: Editorial tech con alma corporativa
   ═════════════════════════════════════════════════════════════════════════ */

:root {
    --mostaza: #C9A227;
    --mostaza-dark: #A6851F;
    --mostaza-deep: #7D6417;
    --mostaza-light: #E6C04F;
    --mostaza-pale: #F5E9BC;
    --mostaza-wash: #FAF7EC;

    --ink: #0A0A0A;
    --ink-soft: #1F1F1F;
    --charcoal: #3A3A3A;
    --gris: #7C7C7C;
    --gris-light: #B8B8B8;
    --gris-pale: #E5E5E5;
    --gris-wash: #F5F5F2;
    --cream: #FAF7EC;
    --paper: #FEFCF6;
    --white: #FFFFFF;

    --ff-display: 'Fraunces', Georgia, serif;
    --ff-body: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
    --ff-mono: 'Geist Mono', 'SF Mono', Consolas, monospace;

    --bezier: cubic-bezier(0.22, 1, 0.36, 1);
    --bezier-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;

    --shadow-card: 0 2px 8px rgba(10, 10, 10, 0.04), 0 12px 24px rgba(10, 10, 10, 0.06);
    --shadow-lift: 0 4px 16px rgba(201, 162, 39, 0.12), 0 20px 40px rgba(10, 10, 10, 0.10);
    --shadow-deep: 0 30px 60px rgba(10, 10, 10, 0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--ff-body);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

::selection { background: var(--mostaza); color: var(--paper); }

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.35;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='5'/%3E%3CfeColorMatrix values='0 0 0 0 0.78 0 0 0 0 0.63 0 0 0 0 0.15 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    mix-blend-mode: multiply;
}

.wrap {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 2;
}
@media (max-width: 768px) {
    .wrap { padding: 0 20px; }
}

/* ─── NAV ─────────────────────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 0;
    background: rgba(254, 252, 246, 0.75);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.4s var(--bezier), padding 0.3s var(--bezier);
}
.nav.scrolled {
    border-bottom-color: rgba(10, 10, 10, 0.06);
    padding: 14px 0;
}
.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.nav-brand {
    display: flex; align-items: center; gap: 12px;
    color: var(--ink); transition: opacity 0.2s;
}
.nav-brand:hover { opacity: 0.75; }
.nav-brand .mini-qr { width: 32px; height: 32px; color: var(--mostaza); }
.nav-brand-text {
    font-family: var(--ff-display);
    font-weight: 600; font-size: 22px;
    letter-spacing: -0.01em;
}
.nav-brand-text .y-accent { color: var(--mostaza); font-style: italic; font-weight: 500; }
.nav-brand-text .ext {
    font-family: var(--ff-mono); font-size: 14px;
    font-weight: 400; color: var(--gris); margin-left: 2px; letter-spacing: 0;
}
.nav-links {
    display: flex; align-items: center; gap: 40px;
}
.nav-links a {
    font-size: 14px; font-weight: 500;
    color: var(--charcoal); letter-spacing: -0.005em;
    position: relative; padding: 6px 0;
    transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--mostaza-dark); }
.nav-links a.active::after {
    content: '';
    position: absolute; bottom: -2px; left: 0; right: 0;
    height: 2px; background: var(--mostaza);
}
.nav-links a.cta {
    background: var(--ink); color: var(--paper);
    padding: 11px 22px; border-radius: 100px;
    font-weight: 500;
    transition: background 0.25s var(--bezier), transform 0.25s var(--bezier);
}
.nav-links a.cta:hover {
    background: var(--mostaza-dark); color: var(--paper);
    transform: translateY(-1px);
}
.nav-links a.cta::after { display: none; }
.nav-menu-toggle {
    display: none;
    flex-direction: column; gap: 5px;
    padding: 8px; background: transparent;
}
.nav-menu-toggle span {
    width: 22px; height: 2px;
    background: var(--ink); border-radius: 2px;
    transition: all 0.3s var(--bezier);
}
.nav-mobile {
    display: none;
    position: fixed; top: 70px; left: 0; right: 0;
    background: var(--paper);
    padding: 24px 32px 32px;
    border-bottom: 1px solid var(--gris-pale);
    flex-direction: column; gap: 4px;
    z-index: 99;
}
.nav-mobile a {
    padding: 16px 0;
    font-size: 16px; font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid var(--gris-pale);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile.open { display: flex; }

@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-menu-toggle { display: flex; }
}

/* ─── BOTONES ──────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 16px 28px;
    font-size: 15px; font-weight: 500;
    border-radius: 100px;
    transition: all 0.3s var(--bezier);
    letter-spacing: -0.005em;
    cursor: pointer;
}
.btn-primary {
    background: var(--ink); color: var(--paper);
}
.btn-primary:hover {
    background: var(--mostaza-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(166, 133, 31, 0.3);
}
.btn-primary .arrow { transition: transform 0.3s var(--bezier); }
.btn-primary:hover .arrow { transform: translateX(4px); }

.btn-ghost {
    color: var(--ink); padding: 16px 0;
    border-bottom: 1px solid var(--gris-pale);
    border-radius: 0; font-weight: 500;
}
.btn-ghost:hover {
    color: var(--mostaza-dark); border-bottom-color: var(--mostaza);
}

.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover {
    background: var(--ink-soft); transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(10, 10, 10, 0.3);
}

.btn-outline-dark {
    background: transparent; color: var(--ink);
    border: 1.5px solid var(--ink);
}
.btn-outline-dark:hover { background: var(--ink); color: var(--mostaza); }

.btn-whatsapp {
    background: #25D366; color: var(--white);
}
.btn-whatsapp:hover {
    background: #1EBE5A; transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.3);
}

/* ─── SECCIÓN BASE ─────────────────────────────────────────────────── */
section { position: relative; z-index: 2; }
.section { padding: 120px 0; }
@media (max-width: 768px) {
    .section { padding: 80px 0; }
}
.section-head {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 40px;
    margin-bottom: 80px;
    align-items: end;
}
@media (max-width: 768px) {
    .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 50px; }
}
.section-num {
    font-family: var(--ff-display);
    font-size: clamp(60px, 9vw, 110px);
    font-weight: 400; font-style: italic;
    line-height: 0.8;
    color: var(--mostaza); opacity: 0.85;
    letter-spacing: -0.04em;
}
.section-title {
    font-family: var(--ff-display);
    font-weight: 500;
    font-size: clamp(34px, 5vw, 56px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.section-title em { font-style: italic; color: var(--mostaza-dark); font-weight: 500; }
.section-tag {
    font-family: var(--ff-mono);
    font-size: 12px; font-weight: 500;
    color: var(--mostaza-dark);
    letter-spacing: 0.15em; text-transform: uppercase;
    display: inline-flex; align-items: center; gap: 10px;
    margin-bottom: 16px;
}
.section-tag::before {
    content: ''; width: 28px; height: 1px; background: var(--mostaza);
}

/* ─── FOOTER ───────────────────────────────────────────────────────── */
.footer { background: var(--ink); color: var(--gris-light); padding: 100px 0 40px; }
.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(254, 252, 246, 0.08);
    margin-bottom: 40px;
}
@media (max-width: 900px) {
    .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 520px) {
    .footer-top { grid-template-columns: 1fr; }
}
.footer-brand {
    display: flex; align-items: center; gap: 12px;
    color: var(--paper); margin-bottom: 24px;
}
.footer-brand .mini-qr { width: 36px; height: 36px; color: var(--mostaza); }
.footer-brand-text {
    font-family: var(--ff-display);
    font-weight: 600; font-size: 24px;
    letter-spacing: -0.01em;
}
.footer-brand-text .y-accent { color: var(--mostaza); font-style: italic; }
.footer-brand-text .ext {
    font-family: var(--ff-mono); font-size: 15px;
    font-weight: 400; color: var(--gris);
}
.footer-tagline {
    font-size: 14px; line-height: 1.7;
    color: rgba(254, 252, 246, 0.55);
    max-width: 320px; margin-bottom: 24px;
}
.footer-slogan {
    font-family: var(--ff-display);
    font-size: 16px; font-style: italic;
    color: var(--mostaza);
}
.footer-col-title {
    font-family: var(--ff-mono);
    font-size: 11px; letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--paper); margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
    font-size: 14px;
    color: rgba(254, 252, 246, 0.55);
    transition: color 0.2s;
}
.footer-col ul a:hover { color: var(--mostaza); }
.footer-bottom {
    display: flex; justify-content: space-between;
    align-items: center; flex-wrap: wrap; gap: 16px;
    font-family: var(--ff-mono);
    font-size: 11px;
    color: rgba(254, 252, 246, 0.35);
    letter-spacing: 0.05em;
}
.footer-bottom a { color: rgba(254, 252, 246, 0.5); }
.footer-bottom a:hover { color: var(--mostaza); }

/* ─── ANIMACIONES ──────────────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes drawLine {
    to { transform: scaleX(1); }
}
@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.75; transform: scale(1.05); }
}
@keyframes ping {
    0% { box-shadow: 0 0 0 0 rgba(201, 162, 39, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(201, 162, 39, 0); }
    100% { box-shadow: 0 0 0 0 rgba(201, 162, 39, 0); }
}
@keyframes scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.8s var(--bezier), transform 0.8s var(--bezier);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ─── HEADINGS/PROSE helpers ───────────────────────────────────────── */
.prose h1, .prose h2, .prose h3 { font-family: var(--ff-display); font-weight: 500; letter-spacing: -0.02em; color: var(--ink); }
.prose h1 { font-size: clamp(36px, 5vw, 56px); line-height: 1.1; margin: 0 0 24px; }
.prose h2 { font-size: clamp(28px, 3.5vw, 40px); line-height: 1.15; margin: 48px 0 20px; }
.prose h3 { font-size: clamp(22px, 2.5vw, 28px); line-height: 1.2; margin: 36px 0 16px; font-weight: 600; }
.prose p { margin: 0 0 18px; font-size: 17px; line-height: 1.7; color: var(--charcoal); }
.prose em { font-style: italic; color: var(--mostaza-dark); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose ul, .prose ol { margin: 0 0 18px; padding-left: 24px; }
.prose ul li, .prose ol li { margin-bottom: 8px; color: var(--charcoal); }
.prose a { color: var(--mostaza-dark); border-bottom: 1px solid var(--mostaza); }
.prose a:hover { color: var(--mostaza-deep); }
.prose blockquote {
    border-left: 4px solid var(--mostaza);
    padding: 4px 0 4px 24px;
    margin: 28px 0;
    font-family: var(--ff-display);
    font-style: italic;
    font-size: 22px;
    color: var(--ink);
}
.prose code {
    font-family: var(--ff-mono);
    background: var(--gris-wash);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
}