/* ENDOLIFTER — main.css
 * Tema premium dark, dorado, Barrio de Salamanca.
 * ============================================== */

/* ── CSS Custom Properties ─────────────────────── */
:root {
    --color-bg:           #0A0A0A;
    --color-bg-alt:       #111111;
    --color-bg-card:      #141414;
    --color-bg-hover:     #1F1F1F;
    --color-text:         #F5F5F0;
    --color-text-muted:   #969691;
    --color-accent:       #FF6600;
    --color-accent-hover: #FF8533;
    --color-accent-dark:  #CC4400;
    --color-accent-soft:  #8B9F8A;
    --color-border:       #2A2A2A;
    --color-border-light: #333333;
    --color-white:        #FFFFFF;
    --color-error:        #E05555;
    --color-success:      #55A055;

    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body:    'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

    --container:  1200px;
    --container-narrow: 820px;
    --section-pad: 100px;
    --radius-card: 12px;
    --radius-btn:  8px;

    --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow: 0 8px 32px rgba(255,102,0,0.18);

    --t-fast: 0.18s cubic-bezier(.2,.7,.3,1);
    --t-base: 0.25s cubic-bezier(.2,.7,.3,1);
    --t-slow: 0.45s cubic-bezier(.2,.7,.3,1);
}

/* ── Reset / Base ──────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--color-accent-hover); }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--color-accent); color: var(--color-bg); }

h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.15;
    margin: 0 0 0.5em;
    color: var(--color-text);
    letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
h4 { font-size: 1.15rem; }
p  { margin: 0 0 1em; color: var(--color-text); }
small { font-size: 0.875rem; color: var(--color-text-muted); }

.sr-only, .screen-reader-text {
    position: absolute !important; clip: rect(1px,1px,1px,1px);
    width: 1px; height: 1px; overflow: hidden;
}
.skip-link {
    position: absolute; top: -100px; left: 0; padding: 12px 16px;
    background: var(--color-accent); color: var(--color-bg); z-index: 9999;
}
.skip-link:focus { top: 0; }

/* ── Layout helpers ────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
.container--narrow { max-width: var(--container-narrow); }
.text-center { text-align: center; }
.text-muted  { color: var(--color-text-muted); }

.section {
    padding: var(--section-pad) 0;
    position: relative;
    border-top: 1px solid var(--color-border);
}
.section--alt { background: var(--color-bg-alt); }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 60px; }
.section-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-accent);
    margin-bottom: 14px;
}
.section-title {
    font-family: var(--font-display);
    margin: 0 0 16px;
}
.section-lead {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

/* ── Buttons ───────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-btn);
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--t-base), color var(--t-base), border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
    text-decoration: none;
    white-space: nowrap;
}
.btn--sm { padding: 10px 18px; font-size: 0.85rem; }
.btn--lg { padding: 18px 36px; font-size: 1rem; }
.btn--block { display: flex; width: 100%; }
.btn--primary {
    background: var(--color-accent);
    color: #0A0A0A;
    border-color: var(--color-accent);
}
.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #0A0A0A;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.btn--secondary {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}
.btn--secondary:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    transform: translateY(-2px);
}
.btn--ghost {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border-light);
}
.btn--ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* Links */
.link-arrow {
    color: var(--color-accent);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--t-base);
}
.link-arrow:hover { gap: 10px; color: var(--color-accent-hover); }

/* ── Header / Nav ──────────────────────────────── */
.site-header {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    background: transparent;
    transition: background var(--t-base), padding var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
    border-bottom: 1px solid transparent;
}
.site-header.scrolled {
    background: rgba(10,10,10,0.96);
    border-bottom-color: var(--color-border);
    padding: 10px 0;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.site-header__inner {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.site-branding { flex-shrink: 0; }
.site-logo { display: inline-flex; flex-direction: column; line-height: 1; }
.site-logo__mark {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.04em;
}
.site-logo__sub {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 4px;
}
.site-header__cta {
    display: flex; align-items: center; gap: 12px;
    flex-shrink: 0;
}
body { padding-top: 76px; }

/* Main nav */
.main-nav { flex: 1; display: flex; justify-content: center; }
.main-nav__list {
    list-style: none; margin: 0; padding: 0;
    display: flex; gap: 8px; align-items: center;
}
.main-nav__list a {
    color: var(--color-text);
    padding: 10px 14px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex; align-items: center; gap: 4px;
    border-radius: 6px;
    transition: color var(--t-fast), background var(--t-fast);
}
.main-nav__list a:hover { color: var(--color-accent); background: rgba(255,255,255,0.03); }
.main-nav__list .has-children { position: relative; }
.main-nav__list .has-children > a::after { content: ''; }
.main-nav__list .sub-menu {
    position: absolute; top: 100%; left: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 8px;
    min-width: 240px;
    box-shadow: var(--shadow-card);
    list-style: none; margin: 0;
    opacity: 0; visibility: hidden; transform: translateY(8px);
    transition: opacity var(--t-base), visibility var(--t-base), transform var(--t-base);
}
.main-nav__list .has-children:hover .sub-menu,
.main-nav__list .has-children:focus-within .sub-menu {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.main-nav__list .sub-menu a {
    display: block; padding: 10px 14px; width: 100%;
    border-radius: 6px;
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--color-border-light);
    border-radius: 6px;
    flex-direction: column;
    align-items: center; justify-content: center;
    gap: 5px;
}
.nav-toggle__bar {
    display: block;
    width: 18px; height: 1.5px;
    background: var(--color-text);
    transition: transform var(--t-base), opacity var(--t-base);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav panel */
.mobile-nav {
    position: fixed; top: 0; right: 0;
    width: 100%; max-width: 360px; height: 100vh;
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    z-index: 99;
    padding: 92px 28px 28px;
    transform: translateX(100%);
    transition: transform var(--t-base);
    overflow-y: auto;
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav__list {
    list-style: none; margin: 0 0 28px; padding: 0;
}
.mobile-nav__list li { border-bottom: 1px solid var(--color-border); }
.mobile-nav__list a {
    display: block; padding: 16px 0;
    font-size: 1.05rem; color: var(--color-text);
    font-weight: 500;
}
.mobile-nav__list .sub-menu { padding-left: 16px; }
.mobile-nav__cta { display: flex; flex-direction: column; gap: 10px; }

/* ── Hero ──────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center; justify-content: flex-start;
    padding: 120px 0 80px;
    background-color: var(--color-bg);
    background-size: cover; background-position: center;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(800px 400px at 20% 20%, rgba(255,102,0,0.10), transparent 60%),
        radial-gradient(600px 300px at 80% 80%, rgba(139,159,138,0.06), transparent 60%);
    pointer-events: none;
}
.hero__bg-grain {
    position: absolute; inset: 0;
    pointer-events: none; opacity: 0.05;
    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 baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.hero__inner {
    position: relative; z-index: 1;
    max-width: 880px;
}
.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 24px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-accent);
}
.hero__title {
    font-size: clamp(2.4rem, 5.5vw, 4.4rem);
    font-weight: 700;
    margin: 0 0 24px;
    letter-spacing: -0.02em;
    line-height: 1.05;
}
.hero__sub {
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 0 40px;
}
.hero__cta {
    display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px;
}
.hero__financiacion {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0 0 48px;
}
.hero__badges {
    list-style: none; margin: 0 0 80px; padding: 32px 0 0;
    display: flex; flex-wrap: wrap; gap: 32px;
    border-top: 1px solid var(--color-border);
    max-width: 880px;
}
.hero__badges li {
    display: inline-flex; align-items: center; gap: 10px;
    color: var(--color-text-muted);
    font-size: 0.88rem;
}
.hero__badges svg { color: var(--color-accent); }
.hero__scroll {
    position: absolute; bottom: 28px; right: 28px;
    display: inline-flex; align-items: center; gap: 12px;
    color: var(--color-text-muted);
    font-size: 0.68rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    z-index: 3;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    background: rgba(10,10,10,0.7);
    backdrop-filter: blur(8px);
}
.hero__scroll:hover { color: var(--color-accent); border-color: var(--color-accent); }
.hero__scroll-line {
    width: 22px; height: 1px;
    background: linear-gradient(to right, var(--color-accent), transparent);
    display: inline-block;
    animation: scrollPulse 2.5s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleX(1); }
    50%      { opacity: 1;   transform: scaleX(1.6); transform-origin: left; }
}
@media (max-width: 768px) {
    .hero__scroll { display: none; }
}
@media (max-height: 720px) {
    .hero { padding: 100px 0 120px; }
    .hero__badges { margin-bottom: 24px; }
}

/* ── Section: Que es Endolift ──────────────────── */
.que-es__grid {
    display: grid; grid-template-columns: 1fr 1.2fr;
    gap: 80px; align-items: start;
}
.que-es__media-frame { position: sticky; top: 110px; }
.que-es__layers {
    list-style: none; padding: 0; margin: 32px 0;
    display: grid; gap: 24px;
}
.que-es__layers li {
    padding-left: 24px;
    border-left: 2px solid var(--color-accent);
}
.que-es__layers h3 { margin: 0 0 6px; font-size: 1.2rem; }
.que-es__layers p  { margin: 0; color: var(--color-text-muted); }

.accent-box {
    margin-top: 32px;
    padding: 20px 24px;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-card);
    background: linear-gradient(135deg, rgba(255,102,0,0.06), transparent);
    display: flex; flex-direction: column; gap: 6px;
}
.accent-box strong { color: var(--color-accent); font-family: var(--font-display); }

/* Trust bar */
.trust-bar { padding: 32px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.trust-bar__list {
    list-style: none; margin: 0; padding: 0;
    display: flex; flex-wrap: wrap; justify-content: space-around; gap: 32px;
}
.trust-bar__item { display: flex; flex-direction: column; align-items: center; text-align: center; }
.trust-bar__num {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    display: inline-flex; align-items: center; gap: 6px;
}
.trust-bar__lbl {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 6px;
}

/* Footer */
.site-footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: 80px 0 32px;
    margin-top: 0;
}
.site-footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.site-footer__brand p { color: var(--color-text-muted); font-size: 0.92rem; }
.site-logo--footer { margin-bottom: 16px; }
.widget-title {
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}
.site-footer__address { font-style: normal; color: var(--color-text); line-height: 1.9; font-size: 0.92rem; }
.site-footer__hours { color: var(--color-text-muted); font-size: 0.85rem; margin-top: 12px; }
.site-footer__menu { list-style: none; margin: 0; padding: 0; }
.site-footer__menu li { margin-bottom: 8px; }
.site-footer__menu a { color: var(--color-text); font-size: 0.92rem; }
.site-footer__menu a:hover { color: var(--color-accent); }

.social-list {
    list-style: none; padding: 0; margin: 0 0 16px;
    display: flex; gap: 12px;
}
.social-list a {
    width: 40px; height: 40px;
    border: 1px solid var(--color-border-light);
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--color-text);
    transition: all var(--t-base);
}
.social-list a:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}
.site-footer__bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    display: flex; justify-content: space-between; gap: 16px;
    flex-wrap: wrap;
    font-size: 0.82rem; color: var(--color-text-muted);
}
.site-footer__legal { list-style: none; padding: 0; margin: 0; display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer__legal a { color: var(--color-text-muted); }
.site-footer__legal a:hover { color: var(--color-accent); }
.site-footer__seo { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 16px; }

/* Cards grid */
.cards-grid { display: grid; gap: 24px; }
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Placeholder image */
.placeholder-image {
    aspect-ratio: 4 / 3;
    background:
        linear-gradient(135deg, rgba(255,102,0,0.06), rgba(255,255,255,0.02));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-accent);
    position: relative;
    overflow: hidden;
}
.placeholder-image--vertical { aspect-ratio: 3 / 4; }
.placeholder-image--square { aspect-ratio: 1 / 1; }
.placeholder-image::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 30% 30%, rgba(255,102,0,0.10), transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.03), transparent 50%);
    pointer-events: none;
}
.placeholder-image__label {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    z-index: 1;
}
.placeholder-image__icon { color: var(--color-accent); opacity: 0.85; z-index: 1; }

/* Section header */
.section-header { margin-bottom: 60px; }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
    background: var(--color-bg-card);
    border: 1px dashed var(--color-border-light);
    border-radius: var(--radius-card);
}

/* Pagination */
.pagination, .nav-links {
    display: flex; justify-content: center; gap: 8px;
    margin-top: 48px;
}
.page-numbers {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px;
    border-radius: 8px;
    border: 1px solid var(--color-border-light);
    color: var(--color-text);
    background: transparent;
    font-size: 0.9rem;
}
.page-numbers.current { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.page-numbers:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Prose (page content) */
.prose { font-size: 1.02rem; line-height: 1.8; }
.prose h2 { margin-top: 1.4em; }
.prose h3 { margin-top: 1.2em; }
.prose a  { text-decoration: underline; text-decoration-color: var(--color-accent); }
.prose blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 20px; margin: 24px 0;
    color: var(--color-text-muted);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-style: italic;
}
.prose ul, .prose ol { padding-left: 22px; }
.prose code {
    background: var(--color-bg-card);
    padding: 2px 6px; border-radius: 4px;
    font-size: 0.9em;
}

/* Page hero */
.page-hero {
    padding: 80px 0 60px;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    background-size: cover; background-position: center;
}
.page-hero__title { font-size: clamp(2rem, 4.5vw, 3.4rem); margin: 12px 0 16px; }
.page-hero__sub { color: var(--color-text-muted); font-size: 1.05rem; max-width: 680px; }
.page-hero__cta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 28px; }
.breadcrumb {
    color: var(--color-text-muted);
    font-size: 0.82rem;
    margin-bottom: 8px;
    display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { color: var(--color-border-light); }

/* Filter tabs */
.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; justify-content: center; }
.filter-tab {
    padding: 10px 20px;
    border: 1px solid var(--color-border-light);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--color-text);
}
.filter-tab.is-active, .filter-tab:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

/* 404 */
.error-404 { padding: 120px 0; }
.error-404__title { font-size: clamp(5rem, 14vw, 10rem); margin: 0; color: var(--color-accent); }
.error-404__subtitle { font-size: 1.1rem; color: var(--color-text-muted); margin: 0 0 32px; }
.error-404__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Posts grid (blog) */
.posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-card); overflow: hidden; transition: transform var(--t-base), border-color var(--t-base); }
.post-card:hover { transform: translateY(-4px); border-color: var(--color-accent); }
.post-card__thumb img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.post-card__body { padding: 24px; }
.post-card__meta { color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; }
.post-card__title { font-size: 1.25rem; margin: 8px 0 12px; }
.post-card__title a { color: var(--color-text); }
.post-card__title a:hover { color: var(--color-accent); }
.post-card__excerpt { color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 12px; }

/* Single article */
.single-article__header { margin-bottom: 32px; }
.single-article__title { font-size: clamp(2rem, 4vw, 3rem); margin-top: 12px; }
.single-article__meta { color: var(--color-text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; }
.single-article__hero { margin: 32px 0; border-radius: var(--radius-card); overflow: hidden; }
.single-article__footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--color-border); display: flex; flex-direction: column; gap: 8px; }
.taxonomies { color: var(--color-text-muted); font-size: 0.9rem; }
.taxonomies a { color: var(--color-accent); }