/* =========================
   FONTS
========================= */
@import url('https://fonts.googleapis.cn/css2?family=Playfair+Display:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=Noto+Serif+SC:wght@400;600&display=swap');

/* =========================
   SPLASH SCREEN
========================= */
html.splash-active, body.splash-active {
  overflow: hidden !important;
  height: 100% !important;
}
#splash {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100vw; height: 100vh;
  z-index: 999999;
  background: #050505;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.8s cubic-bezier(0.25,0.46,0.45,0.94), visibility 0.8s ease;
}
#splash.splash-hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.splash-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 40%, rgba(212,175,55,0.07) 0%, transparent 65%);
}
.splash-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(212,175,55,0.03) 0%, transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(212,175,55,0.03) 0%, transparent 50%);
}
.splash-glow {
  position: absolute;
  top: 50%; left: 50%;
  width: 600px; height: 600px;
  transform: translate(-50%, -55%);
  background: radial-gradient(circle, rgba(212,175,55,0.04) 0%, transparent 70%);
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { transform: translate(-50%, -55%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -55%) scale(1.3); opacity: 1; }
}

/* Gold light rays */
.splash-light {
  position: absolute;
  width: 2px;
  height: 200px;
  background: linear-gradient(to top, transparent, rgba(212,175,55,0.3), transparent);
  transform-origin: bottom center;
  opacity: 0;
  animation: lightSweep 3s ease-in-out infinite;
}
.gold-1 { left: 30%; top: 10%; transform: rotate(-15deg); animation-delay: 0s; }
.gold-2 { left: 50%; top: 5%; transform: rotate(0deg); animation-delay: 0.8s; }
.gold-3 { left: 70%; top: 10%; transform: rotate(15deg); animation-delay: 1.6s; }
@keyframes lightSweep {
  0%, 100% { opacity: 0; height: 150px; }
  50% { opacity: 0.5; height: 250px; }
}

/* Floating particles */
.splash-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.splash-particles span {
  position: absolute;
  background: #d4af37;
  border-radius: 50%;
  animation: particleFloat 4s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(212,175,55,0.4);
}
@keyframes particleFloat {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.3; }
  50% { transform: translateY(-30px) scale(1.5); opacity: 1; }
}

/* Center content */
.splash-center {
  position: relative;
  z-index: 10;
  text-align: center;
  animation: contentFadeIn 1s ease-out forwards;
  padding: 0 20px;
  box-sizing: border-box;
  max-width: 90vw;
  overflow: hidden;
}
@keyframes contentFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Brand logo */
/* Single gold line separator */
.splash-line {
  width: 60px;
  height: 1px;
  background: #d4af37;
  margin: 0 auto 20px;
  animation: dividerExpand 1s ease-out 0.5s forwards;
  transform: scaleX(0);
}

.splash-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.splash-brand-main {
  font-family: 'Playfair Display', serif;
  font-size: 52px;
  font-weight: 300;
  color: #d4af37;
  letter-spacing: 18px;
  animation: logoReveal 1.2s ease-out forwards;
  text-shadow: 0 0 40px rgba(212,175,55,0.15);
}
.splash-logo-divider {
  width: 60px;
  height: 1px;
  background: #d4af37;
  animation: dividerExpand 1s ease-out 0.5s forwards;
  transform: scaleX(0);
}
@keyframes dividerExpand {
  to { transform: scaleX(1); }
}
.splash-brand-accent {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #ddd;
  letter-spacing: 14px;
  text-transform: uppercase;
  animation: logoReveal 1.2s ease-out 0.3s forwards;
  opacity: 0;
}
@keyframes logoReveal {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tagline */
.splash-tagline {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: #fff;
  letter-spacing: 4px;
  margin-bottom: 16px;
  opacity: 0;
  animation: textReveal 1s ease-out 0.8s forwards;
  max-width: 90vw;
  overflow: hidden;
}
.splash-desc {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #999;
  letter-spacing: 2px;
  line-height: 1.8;
  margin-bottom: 50px;
  opacity: 0;
  animation: textReveal 1s ease-out 1s forwards;
  max-width: 90vw;
  overflow: hidden;
}
@keyframes textReveal {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Progress bar */
.splash-progress {
  width: 240px;
  max-width: 80vw;
  height: 2px;
  background: rgba(212,175,55,0.15);
  margin: 0 auto 30px;
  border-radius: 2px;
  overflow: hidden;
  opacity: 0;
  animation: textReveal 0.5s ease-out 1.4s forwards;
  max-width: 80vw;
}
.splash-progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(to right, #d4af37, #f0d68a, #d4af37);
  border-radius: 2px;
  animation: progressFill 2.2s cubic-bezier(0.25,0.46,0.45,0.94) 0.3s forwards;
  box-shadow: 0 0 10px rgba(212,175,55,0.5);
}
@keyframes progressFill {
  from { width: 0%; }
  to { width: 100%; }
}

/* Credit */
.splash-credit {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: #666;
  letter-spacing: 3px;
  opacity: 0;
  animation: textReveal 0.8s ease-out 1.6s forwards;
}

/* Responsive splash */
@media (max-width: 700px) {
  #splash {
    padding: 20px;
    width: 100vw;
    height: 100vh;
  }
  .splash-center {
    transform: scale(0.85);
    max-width: 95vw;
    overflow: hidden;
  }
  .splash-brand-main { font-size: 32px; letter-spacing: 10px; }
  .splash-brand-accent { font-size: 11px; letter-spacing: 8px; }
  .splash-line-left, .splash-line-right { width: 40px; }
  .splash-tagline { font-size: 16px; letter-spacing: 2px; padding: 0 10px; }
  .splash-desc { font-size: 11px; padding: 0 15px; }
  .splash-brand { gap: 15px; margin-bottom: 25px; }
  .splash-glow { width: 300px; height: 300px; }
  .splash-progress { width: 180px; }
  .splash-credit { font-size: 10px; letter-spacing: 2px; }
}

@media (max-width: 400px) {
  .splash-center {
    transform: scale(0.75);
  }
  .splash-brand-main { font-size: 28px; letter-spacing: 8px; }
  .splash-tagline { font-size: 14px; }
  .splash-desc { font-size: 10px; }
  .splash-progress { width: 150px; }
}

/* =========================
   GLOBAL STYLE
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #050505;
  color: #ffffff;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}

img {
  width: 100%;
  display: block;
}

h1, h2, h3 {
  font-family: "Playfair Display", "Noto Serif SC", serif;
  font-weight: 400;
}

h2 {
  font-size: 45px;
  letter-spacing: 2px;
  text-align: center;
  margin-bottom: 20px;
}

p {
  color: #aaa;
  line-height: 1.8;
}

::selection {
  background: rgba(212, 175, 55, 0.3);
  color: #fff;
}

/* =========================
   SCROLLBAR
========================= */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: #050505;
}
::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #d4af37;
}

/* =========================
   HEADER
========================= */
.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 90px;
  padding: 0 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 999;
}

.logo {
  font-size: 20px;
  letter-spacing: 4px;
  color: #d4af37;
  font-weight: 600;
  font-family: "Inter", sans-serif;
}

.logo span {
  color: white;
  margin: 0 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 35px;
}

nav a {
  text-decoration: none;
  color: #ddd;
  font-size: 14px;
  letter-spacing: 1px;
  transition: color 0.3s ease;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #d4af37;
  transition: width 0.3s ease;
}

nav a:hover {
  color: #d4af37;
}

nav a:hover::after {
  width: 100%;
}

/* =========================
   LANGUAGE BUTTON
========================= */
.language {
  position: relative;
}

.language-btn {
  width: 95px;
  height: 38px;
  background: rgba(0, 0, 0, 0.5);
  color: #d4af37;
  border: 1px solid rgba(212, 175, 55, 0.7);
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: 2px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  font-family: "Inter", sans-serif;
}

.language-btn:hover {
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
  background: rgba(212, 175, 55, 0.08);
}

.language-menu {
  position: absolute;
  right: 0;
  top: 50px;
  width: 190px;
  background: rgba(10, 10, 10, 0.95);
  border: 1px solid rgba(212, 175, 55, 0.5);
  border-radius: 12px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.language-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.language-menu div {
  height: 45px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  color: #ddd;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.language-menu div:hover {
  background: #d4af37;
  color: #000;
}

.language-menu div.active-lang {
  color: #d4af37;
  font-weight: 600;
}

.language-menu div.active-lang:hover {
  color: #000;
}

/* =========================
   HERO
========================= */
.hero {
  height: 100vh;
  background: url("../assets/images/hero-luxury.webp") center/cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.45) 0%,
    rgba(0, 0, 0, 0.65) 50%,
    rgba(5, 5, 5, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 1000px;
  padding: 0 20px;
}

.hero .subtitle {
  font-size: 13px;
  letter-spacing: 6px;
  color: #d4af37;
  text-transform: uppercase;
  font-family: "Inter", sans-serif;
  font-weight: 500;
}

.hero h1 {
  font-size: 75px;
  line-height: 1.15;
  margin: 35px 0;
  font-weight: 300;
  letter-spacing: 1px;
}

.hero p {
  font-size: 20px;
  color: #bbb;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-buttons {
  margin-top: 45px;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-buttons button,
.contact button {
  padding: 18px 45px;
  background: #d4af37;
  border: none;
  cursor: pointer;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  color: #000;
}

.hero-buttons button:hover,
.contact button:hover {
  box-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
  transform: translateY(-2px);
}

.hero-buttons .outline {
  background: transparent;
  border: 1px solid #d4af37;
  color: white;
}

.hero-buttons .outline:hover {
  background: rgba(212, 175, 55, 0.1);
}

.partner {
  margin-top: 50px;
  font-size: 13px;
  letter-spacing: 2px;
  color: #666;
  line-height: 2;
}

/* =========================
   SECTION COMMON
========================= */
.section,
.auction,
.sell,
.membership,
.contact,
.trust {
  padding: 120px 8%;
}

.section > p,
.auction > p,
.sell > p {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

/* =========================
   GOLD DIVIDER
========================= */
.gold-divider {
  width: 60px;
  height: 1px;
  background: #d4af37;
  margin: 20px auto 0;
}

/* =========================
   COLLECTION GRID
========================= */
.grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.card {
  background: #111;
  border: 1px solid #1a1a1a;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: border-color 0.5s ease;
  pointer-events: none;
  z-index: 1;
}

.card:hover {
  transform: translateY(-12px);
  border-color: #d4af37;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(212, 175, 55, 0.08);
}

.card img {
  height: 260px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.card:hover img {
  transform: scale(1.05);
}

.card h3 {
  font-size: 22px;
  padding: 25px 25px 10px;
  color: #fff;
}

.card p {
  padding: 0 25px 25px;
  font-size: 14px;
  color: #888;
}

/* =========================
   AUCTION
========================= */
.auction {
  background: #0b0b0b;
}

.auction-grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.auction-card {
  background: #0f0f0f;
  border: 1px solid #222;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s ease;
}

.auction-card:hover {
  border-color: #d4af37;
  box-shadow: 0 0 40px rgba(212, 175, 55, 0.08);
}

.auction-card img {
  height: 300px;
  object-fit: cover;
}

.auction-card h3 {
  padding: 25px 25px 10px;
  font-size: 24px;
  color: #fff;
}

.auction-card .bidders {
  padding: 0 25px;
  font-size: 13px;
  color: #666;
}

.price {
  padding: 15px 25px;
  color: #aaa;
  font-size: 14px;
}

.price strong {
  font-size: 30px;
  color: #d4af37;
  font-family: "Inter", sans-serif;
  font-weight: 600;
  letter-spacing: 1px;
}

.time {
  margin: 15px 25px;
  padding: 15px;
  background: #050505;
  text-align: center;
  font-size: 22px;
  letter-spacing: 3px;
  font-family: "Inter", monospace;
  font-weight: 300;
  color: #fff;
  border-radius: 6px;
  border: 1px solid #1a1a1a;
}

.auction-card button {
  display: block;
  margin: 15px 25px 25px;
  width: calc(100% - 50px);
  padding: 15px;
  background: #d4af37;
  border: none;
  color: #000;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  font-family: "Inter", sans-serif;
  transition: all 0.3s ease;
  border-radius: 4px;
}

.auction-card button:hover {
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
}

/* =========================
   SELL PROCESS
========================= */
.steps {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.steps div {
  background: #0f0f0f;
  padding: 40px 30px;
  border: 1px solid #1a1a1a;
  border-radius: 12px;
  transition: all 0.4s ease;
  position: relative;
}

.steps div:hover {
  border-color: #d4af37;
  transform: translateY(-6px);
}

.step-number {
  font-size: 48px;
  font-family: "Playfair Display", serif;
  color: rgba(212, 175, 55, 0.2);
  font-weight: 600;
  line-height: 1;
  margin-bottom: 15px;
}

.steps h3 {
  margin: 15px 0;
  font-size: 20px;
  color: #fff;
}

.steps p {
  font-size: 14px;
  color: #777;
}

/* =========================
   MEMBERSHIP
========================= */
.membership {
  background: #080808;
}

.membership-grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.membership-grid > div {
  padding: 50px 40px;
  background: #0f0f0f;
  text-align: center;
  border: 1px solid #1a1a1a;
  border-radius: 12px;
  transition: all 0.4s ease;
}

.membership-grid > div:hover {
  border-color: #333;
}

.membership-grid h3 {
  font-size: 32px;
  color: #d4af37;
  margin-bottom: 15px;
}

.membership-grid p {
  font-size: 15px;
  color: #888;
  margin-bottom: 25px;
}

.membership-grid .tier-features {
  list-style: none;
  text-align: left;
  padding: 0;
}

.membership-grid .tier-features li {
  padding: 8px 0;
  color: #777;
  font-size: 14px;
  border-bottom: 1px solid #1a1a1a;
}

.membership-grid .tier-features li::before {
  content: '\2022';
  color: #d4af37;
  margin-right: 10px;
}

.membership-grid .active {
  border-color: #d4af37;
  transform: scale(1.03);
  box-shadow: 0 0 50px rgba(212, 175, 55, 0.08);
  position: relative;
}

.membership-grid .active::before {
  content: 'RECOMMENDED';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #d4af37;
  color: #000;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 4px 16px;
  border-radius: 4px;
  font-family: "Inter", sans-serif;
}

/* =========================
   TRUST MODULE
========================= */
.trust {
  background: #050505;
}

.trust-grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.trust-item {
  text-align: center;
  padding: 40px 25px;
  border: 1px solid #1a1a1a;
  border-radius: 12px;
  transition: all 0.4s ease;
}

.trust-item:hover {
  border-color: #d4af37;
  transform: translateY(-6px);
}

.trust-icon {
  font-size: 36px;
  margin-bottom: 20px;
  display: block;
}

.trust-item h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 12px;
}

.trust-item p {
  font-size: 13px;
  color: #777;
}

/* =========================
   DEEP LABS ABOUT
========================= */
.about {
  padding: 120px 8%;
  display: flex;
  align-items: center;
  gap: 80px;
}

.about img {
  width: 45%;
  height: 450px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid #222;
}

.about-content h2 {
  text-align: left;
}

.about-content p {
  font-size: 16px;
  max-width: 500px;
}

.about-content .gold-divider {
  margin: 20px 0 0;
}

/* =========================
   CONTACT / APPLY
========================= */
.contact {
  text-align: center;
  background: linear-gradient(
    180deg,
    #0b0b0b 0%,
    #050505 100%
  );
}

.contact-form {
  max-width: 600px;
  margin: 40px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form input,
.contact-form select {
  padding: 16px 20px;
  background: #0f0f0f;
  border: 1px solid #222;
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-family: "Inter", sans-serif;
  transition: border-color 0.3s ease;
  outline: none;
}

.contact-form input:focus,
.contact-form select:focus {
  border-color: #d4af37;
}

.contact-form input::placeholder {
  color: #555;
}

.contact-form select {
  color: #555;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.contact-form select option {
  background: #0f0f0f;
  color: #fff;
}

.contact-form .full-width {
  grid-column: 1 / -1;
}

.contact button {
  margin-top: 10px;
  border-radius: 4px;
  color: #000;
}

/* =========================
   FOOTER
========================= */
footer {
  padding: 60px 8%;
  text-align: center;
  border-top: 1px solid #1a1a1a;
}

footer .footer-brand {
  font-size: 18px;
  letter-spacing: 4px;
  color: #d4af37;
  margin-bottom: 15px;
  font-family: "Inter", sans-serif;
  font-weight: 600;
}

footer p {
  color: #555;
  font-size: 13px;
  letter-spacing: 1px;
}

footer .footer-links {
  margin-top: 25px;
  display: flex;
  justify-content: center;
  gap: 30px;
}

footer .footer-links a {
  color: #666;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.3s ease;
}

footer .footer-links a:hover {
  color: #d4af37;
}

/* =========================
   SCROLL REVEAL ANIMATION
========================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================
   MOBILE RESPONSIVE
========================= */
@media (max-width: 1100px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .auction-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .about {
    flex-direction: column;
    gap: 40px;
  }

  .about img {
    width: 100%;
    height: 300px;
  }

  .about-content h2 {
    text-align: center;
  }

  .about-content .gold-divider {
    margin: 20px auto 0;
  }

  .hero h1 {
    font-size: 52px;
  }

  h2 {
    font-size: 36px;
  }
}

@media (max-width: 700px) {
  .header {
    padding: 0 20px;
  }

  nav {
    gap: 15px;
  }

  nav a:not(.language) {
    display: none;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-buttons button,
  .hero-buttons .outline {
    width: 80%;
    margin-left: 0;
    text-align: center;
  }

  .grid,
  .auction-grid,
  .steps,
  .membership-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .membership-grid .active {
    transform: none;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .section,
  .auction,
  .sell,
  .membership,
  .contact,
  .trust {
    padding: 80px 6%;
  }

  h2 {
    font-size: 30px;
  }


}

/* =========================
   SELL MODAL
========================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: #0b0b0b;
  border: 1px solid #222;
  border-radius: 15px;
  padding: 50px 45px;
  max-width: 480px;
  width: 90%;
  position: relative;
  transform: translateY(30px) scale(0.95);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  text-align: center;
}

.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 22px;
  background: none;
  border: none;
  color: #777;
  font-size: 28px;
  cursor: pointer;
  transition: color 0.3s;
  line-height: 1;
}

.modal-close:hover {
  color: #d4af37;
}

.modal-header-icon {
  font-size: 36px;
  color: #d4af37;
  margin-bottom: 15px;
}

.modal-box h3 {
  font-family: "Playfair Display", serif;
  font-size: 28px;
  font-weight: 400;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.modal-subtitle {
  color: #777;
  font-size: 14px;
  margin-bottom: 30px;
}

.modal-box .form-group {
  text-align: left;
  margin-bottom: 20px;
}

.modal-box .form-group label {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  color: #d4af37;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.modal-box .form-group input,
.modal-box .form-group select {
  width: 100%;
  padding: 14px 16px;
  background: #111;
  border: 1px solid #333;
  border-radius: 8px;
  color: #fff;
  font-size: 15px;
  font-family: "Inter", sans-serif;
  transition: border-color 0.3s;
  outline: none;
  -webkit-appearance: none;
}

.modal-box .form-group input:focus,
.modal-box .form-group select:focus {
  border-color: #d4af37;
}

.modal-box .form-group input::placeholder {
  color: #555;
}

.modal-box .form-group select {
  cursor: pointer;
}

.modal-box .form-group select option {
  background: #111;
  color: #fff;
}

.modal-submit-btn {
  width: 100%;
  padding: 16px;
  background: #d4af37;
  border: none;
  border-radius: 8px;
  color: #050505;
  font-size: 15px;
  font-weight: 600;
  font-family: "Inter", sans-serif;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 10px;
}

.modal-submit-btn:hover {
  background: #e5c34a;
  box-shadow: 0 0 25px rgba(212, 175, 55, 0.4);
}

/* Loading */
.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid #222;
  border-top-color: #d4af37;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 25px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-bar {
  width: 100%;
  height: 4px;
  background: #222;
  border-radius: 2px;
  margin-top: 25px;
  overflow: hidden;
}

.loading-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #d4af37, #f0d878);
  border-radius: 2px;
}

/* Success */
.success-icon {
  width: 70px;
  height: 70px;
  border: 2px solid #d4af37;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 32px;
  color: #d4af37;
  animation: scaleIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes scaleIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-success-text {
  color: #aaa;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 30px;
}

.modal-close-btn {
  padding: 14px 40px;
  background: transparent;
  border: 1px solid #d4af37;
  border-radius: 8px;
  color: #d4af37;
  font-size: 14px;
  font-family: "Inter", sans-serif;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
}

.modal-close-btn:hover {
  background: #d4af37;
  color: #050505;
}

/* =========================
VERY SMALL MOBILE
========================= */
@media (max-width: 480px) {
  #splash {
    width: 100vw;
    height: 100vh;
  }
  
  .splash-brand {
    font-size: 24px;
    letter-spacing: 2px;
  }
  
  .splash-tagline {
    font-size: 14px;
    letter-spacing: 1px;
  }
  
  .splash-desc {
    font-size: 11px;
    letter-spacing: 1px;
  }
  
  .splash-progress {
    width: 180px;
  }
}