/* =========================================================
   LUAX CARS — Design System
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --black:      #0A0A0A;
  --black-soft: #111111;
  --black-mid:  #1A1A1A;
  --border:     rgba(255,255,255,0.07);
  --white:      #FFFFFF;
  --white-soft: #C8C8C8;
  --gold:       #4FD1C5;
  --gold-dim:   rgba(79,209,197,0.15);
  --red:        #E8453C;
  --radius:     12px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font-family: 'Inter', sans-serif; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Typography ── */
.display { font-family: 'Bebas Neue', sans-serif; letter-spacing: 0.04em; line-height: 1; }
.label   { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--white-soft); }

/* ── Navbar ── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 2rem;
  height: 80px;
  display: flex; align-items: center; justify-content: space-between;
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border);
}
.nav-logo img { height: 48px; width: auto; }
.nav-logo-text { font-family: 'Bebas Neue', sans-serif; font-size: 1.6rem; letter-spacing: 0.08em; }
.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-links a { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--white-soft); transition: color var(--transition); }
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--gold); color: var(--black) !important;
  padding: 0.5rem 1.2rem; border-radius: 6px;
  font-weight: 600 !important; letter-spacing: 0.06em !important;
  transition: opacity var(--transition) !important;
}
.nav-cta:hover { opacity: 0.85; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--white); transition: transform var(--transition), opacity var(--transition); }

/* Mobile nav */
.nav-mobile-menu {
  display: none; position: fixed; top: 80px; left: 0; right: 0;
  background: rgba(10,10,10,0.97); backdrop-filter: blur(20px);
  flex-direction: column; padding: 1.5rem 2rem 2rem;
  gap: 1.5rem; border-bottom: 1px solid var(--border); z-index: 999;
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a { font-size: 1.1rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--white-soft); }

/* ── Hero ── */
#hero {
  position: relative; height: 100vh; min-height: 600px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; overflow: hidden;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; padding: 0 1.5rem; max-width: 900px; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 0.6rem; margin-bottom: 1.5rem; }
.hero-eyebrow-line { width: 32px; height: 1px; background: var(--gold); }
.hero-eyebrow span { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); }
.hero-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(3.5rem, 10vw, 8rem); letter-spacing: 0.04em; line-height: 1; color: var(--white); margin-bottom: 1.2rem; }
.hero-title span { color: var(--gold); }
.hero-sub { font-size: clamp(0.9rem, 2vw, 1.1rem); font-weight: 300; color: var(--white-soft); max-width: 520px; margin: 0 auto 2.5rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-primary { background: var(--gold); color: var(--black); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.85rem 2rem; border-radius: 6px; transition: opacity var(--transition), transform var(--transition); }
.btn-primary:hover { opacity: 0.88; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--white); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.83rem 2rem; border-radius: 6px; border: 1px solid var(--border); transition: border-color var(--transition), transform var(--transition); }
.btn-outline:hover { border-color: rgba(255,255,255,0.3); transform: translateY(-2px); }
.hero-logo-centered {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-centered img {
  width: min(378px, 60vw);
  height: auto;
  border-radius: 50%;
  box-shadow: 0 0 50px rgba(79, 209, 197, 0.25);
  animation: floatAnim 6s ease-in-out infinite;
  border: 2px solid rgba(79, 209, 197, 0.3);
}
@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-scroll-hint { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); z-index: 2; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; opacity: 0.4; }
.hero-scroll-hint span { font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase; }
.scroll-arrow { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--white), transparent); animation: scrollPulse 2s ease infinite; }
@keyframes scrollPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ── Section commons ── */
section { padding: 5rem 0; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(2.2rem, 5vw, 4rem); letter-spacing: 0.04em; }
.section-subtitle { color: var(--white-soft); font-size: 0.95rem; margin-top: 0.75rem; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Catalog Layout ── */
#catalogo { background: var(--black); }
.catalog-layout { display: grid; grid-template-columns: 280px 1fr; gap: 2rem; align-items: start; }

/* ── Filters ── */
#filters-panel {
  background: var(--black-soft); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem; position: sticky; top: 96px;
}
.filters-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.filters-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.2rem; letter-spacing: 0.06em; }
.btn-clear { font-size: 0.72rem; color: var(--gold); letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600; }
.btn-clear:hover { opacity: 0.7; }
.filter-group { border-top: 1px solid var(--border); padding: 1rem 0; }
.filter-group-title { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--white-soft); margin-bottom: 0.75rem; display: flex; justify-content: space-between; align-items: center; cursor: pointer; user-select: none; }
.filter-group-title .toggle-icon { transition: transform var(--transition); }
.filter-group-title.collapsed .toggle-icon { transform: rotate(-90deg); }
.filter-group-body { display: flex; flex-direction: column; gap: 0.5rem; }
.filter-group-body.hidden { display: none; }
.filter-select {
  width: 100%; background: var(--black-mid); border: 1px solid var(--border);
  color: var(--white); border-radius: 6px; padding: 0.5rem 0.75rem;
  font-size: 0.82rem; font-family: 'Inter', sans-serif; appearance: none;
  cursor: pointer; transition: border-color var(--transition);
}
.filter-select:focus { outline: none; border-color: var(--gold); }

/* Checkboxes */
.filter-checkbox-item { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
.filter-checkbox-item input[type="checkbox"] { display: none; }
.checkbox-box {
  width: 16px; height: 16px; border: 1px solid var(--border); border-radius: 4px;
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: var(--black-mid); transition: all var(--transition);
}
.filter-checkbox-item input:checked + .checkbox-box { background: var(--gold); border-color: var(--gold); }
.checkbox-box::after { content: ''; width: 5px; height: 8px; border: 2px solid var(--black); border-top: none; border-left: none; transform: rotate(40deg) scaleX(0); transition: transform 0.15s ease; margin-top: -2px; }
.filter-checkbox-item input:checked + .checkbox-box::after { transform: rotate(40deg) scaleX(1); }
.checkbox-label { font-size: 0.82rem; color: var(--white-soft); }
.filter-checkbox-item:hover .checkbox-label { color: var(--white); }

/* Range Slider */
.range-container { position: relative; padding-top: 0.5rem; }
.range-values { display: flex; justify-content: space-between; margin-bottom: 0.75rem; }
.range-value { font-size: 0.75rem; color: var(--white-soft); }
.range-track-wrapper { position: relative; height: 4px; background: var(--black-mid); border-radius: 2px; margin: 0.5rem 0 1.5rem; }
.range-fill { position: absolute; height: 100%; background: var(--gold); border-radius: 2px; }
.range-track-wrapper input[type="range"] {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 100%; height: 4px; background: none; -webkit-appearance: none; appearance: none;
  pointer-events: none;
}
.range-track-wrapper input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--gold); border: 2px solid var(--black); pointer-events: all; cursor: pointer;
}

/* Filter mobile toggle */
.filter-mobile-toggle {
  display: none; width: 100%; background: var(--black-soft); border: 1px solid var(--border);
  color: var(--white); border-radius: 8px; padding: 0.75rem 1rem;
  font-family: 'Inter', sans-serif; font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1.5rem;
  align-items: center; justify-content: space-between;
}
.filter-mobile-overlay {
  display: none; position: fixed; inset: 0; z-index: 900;
  background: rgba(0,0,0,0.8); backdrop-filter: blur(4px);
}
.filter-mobile-overlay.open { display: block; }
.filter-mobile-panel {
  position: fixed; left: 0; top: 0; bottom: 0; width: min(340px, 90vw);
  background: var(--black-soft); z-index: 901; overflow-y: auto;
  padding: 1.5rem; transform: translateX(-100%); transition: transform 0.3s ease;
}
.filter-mobile-panel.open { transform: translateX(0); }
.filter-mobile-close { float: right; font-size: 1.4rem; color: var(--white-soft); background: none; border: none; cursor: pointer; }

/* ── Catalog Toolbar ── */
.catalog-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem;
}
.catalog-count { font-size: 0.82rem; color: var(--white-soft); }
.catalog-count strong { color: var(--white); }
.sort-select {
  background: var(--black-soft); border: 1px solid var(--border); color: var(--white);
  border-radius: 6px; padding: 0.5rem 0.75rem; font-size: 0.82rem;
  font-family: 'Inter', sans-serif; appearance: none; cursor: pointer; min-width: 220px;
}
.sort-select:focus { outline: none; border-color: var(--gold); }

/* ── Car Cards Grid ── */
#cars-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.car-card {
  background: var(--black-soft); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.car-card:hover { transform: translateY(-4px); border-color: rgba(79,209,197,0.35); box-shadow: 0 12px 40px rgba(0,0,0,0.5); }
.card-img-wrap { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--black-mid); }
.card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.car-card:hover .card-img-wrap img { transform: scale(1.04); }
.card-badge {
  position: absolute; top: 0.6rem; right: 0.6rem; z-index: 5;
  font-size: 0.65rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.3rem 0.65rem; border-radius: 4px; box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.badge-premium       { background: var(--gold); color: var(--black); }
.badge-destacados    { background: var(--gold); color: var(--black); }
.badge-nuevo-ingreso { background: #3B82F6; color: #FFFFFF; }
.badge-oportunidad   { background: var(--red); color: #FFFFFF; }

.card-tipo-tag {
  position: absolute; top: 0.6rem; left: 0.6rem; z-index: 5;
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 0.25rem 0.55rem; border-radius: 4px;
  background: rgba(10, 10, 10, 0.85); backdrop-filter: blur(8px);
  color: var(--gold); border: 1px solid rgba(79, 209, 197, 0.45);
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.card-photos-count {
  position: absolute; bottom: 0.6rem; left: 0.6rem; z-index: 5;
  background: rgba(10,10,10,0.8); backdrop-filter: blur(6px);
  color: var(--white); font-size: 0.68rem; font-weight: 600;
  padding: 0.25rem 0.55rem; border-radius: 4px; display: flex; align-items: center; gap: 0.35rem;
  border: 1px solid rgba(255,255,255,0.1);
}

/* ── Photo Lightbox Modal ── */
#photo-lightbox-modal {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(5,5,5,0.96); backdrop-filter: blur(20px);
  display: none; flex-direction: column; justify-content: space-between;
  padding: 1.25rem; opacity: 0; transition: opacity 0.3s ease;
}
#photo-lightbox-modal.open { display: flex; opacity: 1; }

.lightbox-header {
  display: flex; align-items: center; justify-content: space-between;
  color: var(--white); z-index: 10; padding: 0 0.5rem;
}
.lightbox-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.8rem; letter-spacing: 0.05em; color: var(--gold); }
.lightbox-counter { font-size: 0.85rem; color: var(--white-soft); font-weight: 500; }
.lightbox-close { background: none; border: none; color: var(--white); font-size: 2.2rem; cursor: pointer; padding: 0 0.5rem; line-height: 1; transition: color 0.2s ease; }
.lightbox-close:hover { color: var(--gold); }

.lightbox-stage {
  position: relative; flex: 1; display: flex; align-items: center; justify-content: center;
  margin: 0.5rem 0; overflow: hidden;
}
.lightbox-main-img {
  max-width: 100%; max-height: 72vh; object-fit: contain;
  border-radius: 8px; box-shadow: 0 20px 60px rgba(0,0,0,0.9);
  transition: transform 0.25s ease;
}
.lightbox-nav-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(20,20,20,0.75); border: 1px solid var(--border); color: var(--white);
  width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s ease; z-index: 10; font-size: 1.2rem;
}
.lightbox-nav-btn:hover { background: var(--gold); color: var(--black); border-color: var(--gold); transform: translateY(-50%) scale(1.1); }
.lightbox-prev { left: 0.75rem; }
.lightbox-next { right: 0.75rem; }

.lightbox-thumbnails {
  display: flex; gap: 0.6rem; justify-content: center; overflow-x: auto;
  padding: 0.5rem 0; max-width: 100%; scrollbar-width: thin;
}
.lightbox-thumb {
  width: 64px; height: 48px; object-fit: cover; border-radius: 4px;
  border: 2px solid transparent; opacity: 0.45; cursor: pointer; transition: all 0.2s ease; flex-shrink: 0;
}
.lightbox-thumb.active, .lightbox-thumb:hover { opacity: 1; border-color: var(--gold); transform: scale(1.06); }
.card-body { padding: 1rem; }
.card-marca  { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.2rem; }
.card-nombre { font-size: 1.02rem; font-weight: 600; line-height: 1.3; margin-bottom: 0.75rem; }
.card-specs  { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; margin-bottom: 1rem; }
.card-spec   { display: flex; align-items: center; gap: 0.3rem; font-size: 0.75rem; color: var(--white-soft); }
.card-spec svg { opacity: 0.5; flex-shrink: 0; }
.card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 0.75rem; }
.card-price  { font-family: 'Bebas Neue', sans-serif; font-size: 1.5rem; letter-spacing: 0.04em; color: var(--white); }
.card-cta    { background: var(--gold-dim); border: 1px solid rgba(79,209,197,0.3); color: var(--gold); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.45rem 0.9rem; border-radius: 6px; transition: background var(--transition); }
.card-cta:hover { background: var(--gold); color: var(--black); }
.no-results { grid-column: 1/-1; text-align: center; padding: 4rem 1rem; }
.no-results p { color: var(--white-soft); font-size: 1rem; }

/* ── Sell Section ── */
#vender { background: var(--black-soft); border-top: 1px solid var(--border); }
.sell-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.sell-info h2 { font-family: 'Bebas Neue', sans-serif; font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: 0.04em; margin-bottom: 1rem; }
.sell-info > p { color: var(--white-soft); font-size: 0.95rem; line-height: 1.7; margin-bottom: 2.5rem; }
.sell-steps { display: flex; flex-direction: column; gap: 1.5rem; }
.sell-step { display: flex; gap: 1rem; }
.step-number {
  width: 40px; height: 40px; border-radius: 50%; background: var(--gold-dim);
  border: 1px solid rgba(79,209,197,0.4); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif; font-size: 1.1rem; color: var(--gold);
}
.step-info h4 { font-weight: 700; font-size: 0.9rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 0.3rem; }
.step-info p  { font-size: 0.85rem; color: var(--white-soft); line-height: 1.6; }

/* Form */
.sell-form-card { background: var(--black); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.form-title { font-family: 'Bebas Neue', sans-serif; font-size: 1.6rem; letter-spacing: 0.04em; margin-bottom: 0.4rem; }
.form-subtitle { font-size: 0.82rem; color: var(--white-soft); margin-bottom: 1.75rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--white-soft); }
.form-input, .form-select-inp {
  background: var(--black-soft); border: 1px solid var(--border); color: var(--white);
  border-radius: 8px; padding: 0.7rem 1rem; font-size: 0.88rem;
  font-family: 'Inter', sans-serif; transition: border-color var(--transition);
  width: 100%;
}
.form-input::placeholder { color: rgba(255,255,255,0.2); }
.form-input:focus, .form-select-inp:focus { outline: none; border-color: var(--gold); }
.form-select-inp { appearance: none; cursor: pointer; }
.btn-submit {
  width: 100%; background: var(--gold); color: var(--black);
  font-weight: 700; font-size: 0.88rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 1rem; border-radius: 8px; margin-top: 0.5rem;
  transition: opacity var(--transition), transform var(--transition);
}
.btn-submit:hover { opacity: 0.88; transform: translateY(-1px); }
.form-note { font-size: 0.72rem; color: var(--white-soft); text-align: center; margin-top: 0.75rem; }

/* ── Footer ── */
footer {
  background: #060606; border-top: 1px solid var(--border);
  padding: 3rem 0 1.5rem;
}
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1.2fr 1fr; gap: 2rem; margin-bottom: 2.5rem; }
.footer-brand img { height: 44px; margin-bottom: 1rem; }
.footer-brand p { font-size: 0.82rem; color: var(--white-soft); line-height: 1.7; max-width: 240px; }
.footer-col h5 { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--white-soft); margin-bottom: 1rem; }
.footer-col a  { display: block; font-size: 0.85rem; color: var(--white-soft); margin-bottom: 0.5rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 1.5rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { font-size: 0.75rem; color: rgba(255,255,255,0.25); }

/* ── WhatsApp Float ── */
#whatsapp-float {
  position: fixed; bottom: 1.75rem; right: 1.75rem; z-index: 800;
  width: 56px; height: 56px; border-radius: 50%;
  background: #25D366; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  transition: transform var(--transition), box-shadow var(--transition);
}
#whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(37,211,102,0.5); }
.wa-pulse {
  position: absolute; width: 100%; height: 100%; border-radius: 50%;
  background: rgba(37,211,102,0.4); animation: waPulse 2.5s ease-out infinite;
}
@keyframes waPulse { 0% { transform: scale(1); opacity: 0.8; } 100% { transform: scale(1.9); opacity: 0; } }

/* ── Skeleton loader ── */
.skeleton { background: linear-gradient(90deg, var(--black-mid) 25%, var(--black-soft) 50%, var(--black-mid) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--radius); }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-card { height: 320px; }

/* ── Fade-in animation ── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .catalog-layout { grid-template-columns: 1fr; }
  #filters-panel {
    display: none;
    position: fixed;
    top: 80px; left: 0; right: 0; bottom: 0;
    z-index: 902;
    overflow-y: auto;
    border-radius: 0;
    border: none;
    border-top: 1px solid var(--border);
    max-height: calc(100vh - 80px);
    padding: 1.25rem 1rem;
  }
  #filters-panel.mobile-open { display: block; }
  .filter-panel-mobile-close { display: flex !important; }
  .filter-mobile-toggle { display: flex; }
  .sell-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-title { font-size: clamp(3rem, 14vw, 5rem); }
  #cars-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  section { padding: 3.5rem 0; }
}
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .sell-form-card { padding: 1.25rem; }
  #whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 50px; height: 50px; }
}

/* ── Demo cards ── */
.car-card--demo {
  opacity: 0.72;
  pointer-events: none; /* toda la card no interactiva */
}
.car-card--demo:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}
/* Restaurar pointer-events solo en el botón para que el title (tooltip) funcione */
.card-cta--demo {
  pointer-events: auto;
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.25);
  cursor: not-allowed;
  font-size: 0.65rem;
}
.card-cta--demo:hover { background: rgba(255,255,255,0.04); color: rgba(255,255,255,0.25); }

/* Overlay con etiqueta "Demo" sobre la imagen */
.card-demo-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end; justify-content: flex-start;
  padding: 0.6rem;
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, transparent 60%);
  pointer-events: none;
}
.card-demo-label {
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px; padding: 0.18rem 0.5rem;
  backdrop-filter: blur(4px);
}