*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --orange: #FF6600; --burgundy: #513434; --black: #111111; --white: #F5F2EE; --mid: #C8C2B8; --light: #E8E4DE; }
html { scroll-behavior: smooth; }
body { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background: var(--white); color: var(--black); overflow-x: hidden; }
nav { display: flex; align-items: center; height: 64px; border-bottom: 2px solid var(--black); background: var(--white); position: sticky; top: 0; z-index: 100; }
.logo { width: 64px; height: 64px; min-width: 64px; background: var(--orange); border-right: 3px solid var(--burgundy); display: flex; align-items: center; justify-content: center; flex-shrink: 0; text-decoration: none; }
.logo span { font-weight: 900; font-size: 14px; color: var(--white); letter-spacing: 0.5px; }
.nav-links { display: flex; list-style: none; margin-left: 40px; flex: 1; }
.nav-links a { display: block; padding: 0 20px; height: 64px; line-height: 64px; font-size: 10px; font-weight: 500; letter-spacing: 2.5px; text-transform: uppercase; color: var(--black); text-decoration: none; border-right: 1px solid rgba(17,17,17,0.12); transition: background 0.12s, color 0.12s; }
.nav-links a:hover, .nav-links a.active { background: var(--orange); color: var(--white); }
.lang-toggle { display: flex; font-size: 10px; font-weight: 700; letter-spacing: 2px; margin-right: 24px; }
.lang-toggle a { padding: 6px 12px; border: 1px solid var(--black); text-decoration: none; color: var(--black); transition: background 0.12s, color 0.12s; }
.lang-toggle a.active { background: var(--black); color: var(--white); }
.lang-toggle a:hover:not(.active) { background: var(--orange); color: var(--white); border-color: var(--orange); }
.page-header { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 2px solid var(--black); }
.page-header-left { padding: 56px; border-right: 2px solid var(--black); }
.page-eyebrow { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 20px; }
.page-title { font-size: clamp(40px, 5.5vw, 72px); font-weight: 900; letter-spacing: -3px; line-height: 0.9; color: var(--black); }
.page-header-right { padding: 56px 48px; display: flex; flex-direction: column; justify-content: flex-end; }
.page-desc { font-size: 13px; line-height: 1.85; color: var(--burgundy); max-width: 380px; border-left: 3px solid var(--orange); padding-left: 18px; }
.filter-bar { display: flex; border-bottom: 2px solid var(--black); overflow-x: auto; }
.filter-btn { padding: 0 20px; height: 48px; line-height: 48px; font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; border: none; background: none; cursor: pointer; border-right: 1px solid rgba(17,17,17,0.12); white-space: nowrap; transition: background 0.12s, color 0.12s; color: var(--black); font-family: inherit; }
.filter-btn:hover, .filter-btn.active { background: var(--orange); color: var(--white); }
.art-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.art-card { border-right: 2px solid var(--black); border-bottom: 2px solid var(--black); cursor: pointer; transition: background 0.12s; display: flex; flex-direction: column; }
.art-card:nth-child(3n) { border-right: none; }
.art-card:hover { background: var(--light); }
.art-img { width: 100%; aspect-ratio: 4/3; background: var(--mid); display: flex; align-items: center; justify-content: center; border-bottom: 2px solid var(--black); overflow: hidden; }
.art-img img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.thumb-strip { display: flex; border-top: 1px solid rgba(17,17,17,0.1); }
.thumb { flex: 1; aspect-ratio: 1; background: var(--light); overflow: hidden; border-right: 1px solid rgba(17,17,17,0.1); }
.thumb:last-child { border-right: none; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.art-info { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; gap: 5px; }
.art-cat { font-size: 9px; letter-spacing: 2px; text-transform: uppercase; color: var(--orange); font-weight: 700; }
.art-artist { font-size: 11px; font-weight: 900; letter-spacing: 1.5px; text-transform: uppercase; color: var(--black); }
.art-dates { font-size: 10px; color: var(--mid); font-weight: 500; }
.art-title { font-size: 13px; font-style: italic; color: var(--burgundy); line-height: 1.4; margin-top: 2px; }
.art-title-plain { font-size: 12px; font-weight: 900; color: var(--black); line-height: 1.25; }
.art-technique { font-size: 11px; color: var(--burgundy); line-height: 1.5; }
.art-dims { font-size: 10px; color: var(--mid); font-weight: 500; }
.art-edition { font-size: 10px; color: var(--burgundy); font-style: italic; }
.art-desc { font-size: 11px; color: var(--burgundy); line-height: 1.65; }
.art-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 14px; border-top: 1px solid rgba(17,17,17,0.1); }
.art-price { font-size: 13px; font-weight: 900; color: var(--orange); }
.art-inquiry { font-size: 9px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--black); border: 1px solid var(--black); padding: 5px 10px; text-decoration: none; transition: background 0.12s, color 0.12s; display: inline-block; }
.art-card:hover .art-inquiry { background: var(--orange); color: var(--white); border-color: var(--orange); }
.contact-strip { display: grid; grid-template-columns: 2fr 1fr; border-top: 2px solid var(--black); }
.contact-text { padding: 56px; border-right: 2px solid var(--black); }
.contact-label { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 16px; }
.contact-body { font-size: 14px; line-height: 1.8; color: var(--burgundy); max-width: 480px; }
.contact-cta { display: inline-block; margin-top: 24px; padding: 14px 32px; background: var(--black); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; text-decoration: none; border: 2px solid var(--black); transition: background 0.12s; }
.contact-cta:hover { background: var(--orange); border-color: var(--orange); }
.contact-side { padding: 56px 40px; display: flex; flex-direction: column; justify-content: center; gap: 8px; }
.contact-detail { font-size: 13px; line-height: 1.9; color: var(--burgundy); }
footer { border-top: 2px solid var(--black); background: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; }
.footer-col { padding: 44px 36px; border-right: 2px solid var(--black); }
.footer-col:last-child { border-right: none; }
.footer-label { font-size: 9px; letter-spacing: 3px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 16px; }
.footer-text { font-size: 13px; line-height: 1.9; color: var(--burgundy); }
.footer-bottom { border-top: 2px solid var(--black); padding: 18px 36px; display: flex; justify-content: space-between; align-items: center; background: var(--white); }
.footer-bottom-text { font-size: 9px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--mid); }
.footer-logo { width: 36px; height: 36px; background: var(--orange); border: 2px solid var(--burgundy); display: flex; align-items: center; justify-content: center; text-decoration: none; }
.footer-logo span { font-size: 9px; font-weight: 900; color: var(--white); }
.hero { display: grid; grid-template-columns: 1fr 1fr; min-height: calc(100vh - 64px); border-bottom: 2px solid var(--black); }
.hero-left { padding: 72px 56px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; border-right: 2px solid var(--black); gap: 36px; }
.hero-eyebrow { font-size: 10px; letter-spacing: 3.5px; text-transform: uppercase; color: var(--burgundy); font-weight: 500; }
.hero-tagline { font-size: clamp(36px, 4.5vw, 58px); font-weight: 900; line-height: 1; letter-spacing: -2px; color: var(--black); }
.hero-tagline .accent { color: var(--orange); }
.hero-subtitle { font-size: 13px; line-height: 1.85; color: var(--burgundy); max-width: 340px; border-left: 3px solid var(--orange); padding-left: 18px; }
.hero-cta { display: inline-block; padding: 15px 36px; background: var(--black); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; text-decoration: none; border: 2px solid var(--black); transition: background 0.12s; }
.hero-cta:hover { background: var(--orange); border-color: var(--orange); }
.hero-right { display: grid; grid-template-rows: 2fr 1fr; }
.hero-img-main { background: var(--burgundy); border-bottom: 2px solid var(--black); min-height: 280px; }
.hero-img-row { display: grid; grid-template-columns: 1fr 1fr; }
.img-cell { background: var(--mid); min-height: 160px; }
.img-cell:first-child { border-right: 2px solid var(--black); }
.categories { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 2px solid var(--black); }
.cat-item { padding: 44px 36px; border-right: 2px solid var(--black); transition: background 0.12s; display: flex; flex-direction: column; gap: 12px; text-decoration: none; }
.cat-item:last-child { border-right: none; }
.cat-item:hover { background: var(--orange); }
.cat-item:hover .cat-num, .cat-item:hover .cat-title, .cat-item:hover .cat-desc, .cat-item:hover .cat-arrow { color: var(--white); }
.cat-num { font-size: 9px; letter-spacing: 3px; color: var(--mid); font-weight: 700; }
.cat-title { font-size: 26px; font-weight: 900; letter-spacing: -0.5px; color: var(--black); line-height: 1; }
.cat-desc { font-size: 12px; line-height: 1.75; color: var(--burgundy); flex: 1; }
.cat-arrow { font-size: 20px; color: var(--black); align-self: flex-end; }
.about { display: grid; grid-template-columns: 3fr 1fr; border-bottom: 2px solid var(--black); }
.about-text { padding: 72px 56px; border-right: 2px solid var(--black); }
.about-label { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 28px; }
.about-body { font-size: 15px; line-height: 1.9; color: var(--burgundy); max-width: 520px; }
.about-body strong { color: var(--black); font-weight: 700; }
.about-side { display: flex; flex-direction: column; }
.about-stat { flex: 1; padding: 36px 32px; border-bottom: 2px solid var(--black); display: flex; flex-direction: column; justify-content: center; }
.about-stat:last-child { border-bottom: none; }
.stat-num { font-size: 40px; font-weight: 900; color: var(--orange); line-height: 1; letter-spacing: -2px; }
.stat-label { font-size: 9px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--burgundy); font-weight: 700; margin-top: 6px; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.hero-eyebrow { animation: fadeUp 0.4s 0.00s ease both; }
.hero-tagline { animation: fadeUp 0.4s 0.08s ease both; }
.hero-subtitle { animation: fadeUp 0.4s 0.16s ease both; }
.hero-cta { animation: fadeUp 0.4s 0.24s ease both; }
.contact-main { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 2px solid var(--black); }
.form-section { padding: 64px 56px; border-right: 2px solid var(--black); }
.form-label-section { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 32px; }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--burgundy); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px 16px; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 13px; color: var(--black); background: var(--white); border: 2px solid var(--black); outline: none; transition: border-color 0.12s; appearance: none; -webkit-appearance: none; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--orange); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23111' stroke-width='2' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit { width: 100%; padding: 18px; background: var(--black); color: var(--white); font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 11px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; border: 2px solid var(--black); cursor: pointer; transition: background 0.12s; margin-top: 8px; }
.form-submit:hover { background: var(--orange); border-color: var(--orange); }
.info-section { display: flex; flex-direction: column; }
.info-block { padding: 36px 48px; border-bottom: 2px solid var(--black); }
.info-block:last-child { border-bottom: none; flex: 1; }
.info-block-label { font-size: 9px; letter-spacing: 3px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 14px; }
.info-block-text { font-size: 14px; line-height: 2; color: var(--burgundy); }
.info-block-text a { color: var(--burgundy); text-decoration: none; border-bottom: 1px solid var(--mid); transition: border-color 0.12s, color 0.12s; }
.info-block-text a:hover { border-color: var(--orange); color: var(--orange); }
.hours-grid { display: grid; grid-template-columns: auto 1fr; gap: 4px 20px; font-size: 13px; color: var(--burgundy); line-height: 2; }
.hours-day { font-weight: 700; color: var(--black); }
.lang-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.lang-badge { padding: 5px 14px; border: 1px solid var(--black); font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--black); }
.map-section { border-top: 2px solid var(--black); background: var(--light); display: flex; align-items: center; justify-content: center; min-height: 200px; }
.map-inner { text-align: center; }
.map-label { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--burgundy); font-weight: 700; display: block; margin-bottom: 8px; }
.map-address { font-size: 13px; color: var(--burgundy); line-height: 1.7; }
.flea-strip { display: grid; grid-template-columns: 1fr 1fr; border-top: 2px solid var(--black); }
.flea-left { padding: 48px 56px; border-right: 2px solid var(--black); }
.flea-right { padding: 48px 48px; background: var(--burgundy); }
.flea-label { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--orange); font-weight: 700; display: block; margin-bottom: 16px; }
.flea-title { font-size: 28px; font-weight: 900; letter-spacing: -1px; color: var(--black); line-height: 1; margin-bottom: 16px; }
.flea-text { font-size: 13px; line-height: 1.85; color: var(--burgundy); }
.flea-right-label { font-size: 9px; letter-spacing: 4px; text-transform: uppercase; color: var(--mid); font-weight: 700; display: block; margin-bottom: 16px; }
.flea-right-title { font-size: 22px; font-weight: 900; color: var(--white); line-height: 1.1; margin-bottom: 12px; }
.flea-right-text { font-size: 13px; line-height: 1.85; color: var(--mid); }
.flea-badge { display: inline-block; margin-top: 20px; padding: 10px 24px; background: var(--orange); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; }

/* ── MENÚ MÓVIL ── */
.nav-mobile-menu { display: none; position: absolute; top: 64px; left: 0; width: 100%; background: var(--white); border-bottom: 2px solid var(--black); z-index: 99; flex-direction: column; }
.nav-mobile-menu a { display: block; padding: 18px 24px; font-size: 10px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--black); text-decoration: none; border-bottom: 1px solid rgba(17,17,17,0.12); transition: background 0.12s, color 0.12s; }
.nav-mobile-menu a:hover, .nav-mobile-menu a.active { background: var(--orange); color: var(--white); }
.logo.menu-open { background: var(--black); }

@media (max-width: 768px) {
  .page-header, .hero, .about, .contact-main, .flea-strip { grid-template-columns: 1fr; }
  .page-header-left, .hero-left, .about-text, .form-section, .flea-left { border-right: none; border-bottom: 2px solid var(--black); }
  .hero-right { display: none; }
  .categories { grid-template-columns: 1fr; }
  .cat-item { border-right: none; border-bottom: 2px solid var(--black); }
  .art-grid { grid-template-columns: 1fr 1fr; }
  .art-card:nth-child(3n) { border-right: 2px solid var(--black); }
  .art-card:nth-child(2n) { border-right: none; }
  .contact-strip { grid-template-columns: 1fr; }
  .contact-text { border-right: none; border-bottom: 2px solid var(--black); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-col { border-right: none; border-bottom: 2px solid var(--black); }
  .nav-links { display: none; }
  .nav-mobile-menu.open { display: flex; }
}
@media (max-width: 480px) {
  .art-grid { grid-template-columns: 1fr; }
}

/* ── BOTÓN HAMBURGUESA ── */
.nav-hamburger { display: none; width: 48px; height: 64px; align-items: center; justify-content: center; cursor: pointer; background: none; border: none; border-left: 1px solid rgba(17,17,17,0.12); flex-shrink: 0; margin-left: auto; }
.nav-hamburger span { display: block; width: 20px; height: 2px; background: var(--black); margin: 4px 0; transition: all 0.2s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .lang-toggle { margin-right: 0; margin-left: 16px; }
}