/* ============================================================
   CSS Design System — Dark Gold Aesthetic
   M.V Lien Minh — Web-to-Foil
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800;900&family=Be+Vietnam+Pro:wght@400;500;600;700&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --black:       #030303;
  --black-soft:  #0A0A0A;
  --black-mid:   #111111;
  --black-card:  #0D0D0D;
  --gold:        #D4AF37;
  --gold-light:  #F3E5AB;
  --gold-pale:   #FDF6E3;
  --gold-dark:   #8B6F3E;
  --rose:        #B76E79;
  --rose-gold:   #B76E79;
  --cream:       #F5F0E6;
  --cream-dim:   #C8C0AE;
  --white:       #FFFFFF;
  --border:      rgba(212,175,55,0.18);
  --border-soft: rgba(255,255,255,0.04);

  --font-display: 'Montserrat', sans-serif;
  --font-body:    'Be Vietnam Pro', sans-serif;

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

  --shadow-gold: 0 0 60px rgba(212,175,55,0.18);
  --shadow-card: 0 8px 48px rgba(0,0,0,0.7);

  --transition:      all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; width: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea, select {
  font-family: var(--font-body);
  color: var(--cream);
  background: transparent;
}
input::placeholder, textarea::placeholder { color: var(--cream-dim); opacity: 0.6; }

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 2px; }

/* ── Cursor Glow & Particle Canvas ───────────────────────── */
#cursor-glow {
  position: fixed; top: 0; left: 0;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(212,175,55,0.12) 0%, rgba(212,175,55,0.04) 40%, transparent 70%);
  pointer-events: none; z-index: 9998;
  mix-blend-mode: screen;
  transition: transform 0.15s ease-out;
  will-change: transform;
}
#cursor-particles {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9997;
}

/* ── Grain Overlay ─────────────────────────────────────────── */
body::after {
  content: '';
  position: fixed; inset: 0;
  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='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025; pointer-events: none; z-index: 9999;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 2px; font-size: 0.8rem;
  letter-spacing: 0.15em; text-transform: uppercase; font-weight: 500;
  transition: var(--transition); position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.05); opacity: 0; transition: var(--transition);
}
.btn:hover::after { opacity: 1; }

.btn-gold {
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
  color: var(--black);
  box-shadow: 0 0 30px rgba(212,175,55,0.3), inset 0 1px 0 rgba(255,255,255,0.25);
  overflow: hidden;
}
.btn-gold::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.35) 50%, transparent 60%);
  transform: translateX(-100%); transition: transform 0.6s ease;
}
.btn-gold:hover::before { transform: translateX(100%); }
.btn-gold:hover {
  background: linear-gradient(135deg, var(--gold-pale) 0%, var(--gold-light) 50%, var(--gold) 100%);
  box-shadow: 0 0 50px rgba(212,175,55,0.5), 0 0 80px rgba(212,175,55,0.2);
  transform: translateY(-2px);
}
.btn-outline {
  border: 1px solid rgba(212,175,55,0.45); color: var(--gold);
  background: rgba(212,175,55,0.03);
}
.btn-outline:hover {
  border-color: var(--gold); background: rgba(212,175,55,0.08);
  box-shadow: 0 0 20px rgba(212,175,55,0.15); transform: translateY(-2px);
}

/* ── Badge ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.9rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); font-weight: 500; margin-bottom: 1.5rem;
}
.badge::before, .badge::after {
  content: ''; width: 30px; height: 1px; background: var(--gold); opacity: 0.5;
}

/* ── Foil Shimmer Text ─────────────────────────────────────── */
.hero-foil-text {
  display: block;
  text-transform: uppercase; font-weight: 800;
  background: radial-gradient(
    500px circle at var(--cursor-x, 50%) var(--cursor-y, 50%),
    var(--gold-light) 0%, var(--gold) 30%, var(--gold-dark) 60%, var(--cream-dim) 100%
  );
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 4px rgba(212,175,55,0.45));
  transition: var(--transition); cursor: pointer;
}
.hero-foil-text:hover {
  filter: drop-shadow(0 0 8px rgba(212,175,55,0.8)) drop-shadow(0 0 20px rgba(243,229,171,0.4));
}

/* ── Navigation ────────────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 5%; display: flex; align-items: center; justify-content: space-between;
  height: 80px; transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(3,3,3,0.92); backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border); height: 64px;
}
.nav-logo {
  font-family: var(--font-display); font-size: 1.8rem; font-weight: 700;
  letter-spacing: 0.15em; color: var(--gold);
}
.nav-links { display: flex; align-items: center; gap: 40px; }
.nav-link {
  font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--cream-dim); transition: var(--transition); position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--gold); transform: scaleX(0);
  transition: var(--transition); transform-origin: left;
}
.nav-link:hover, .nav-link.active { color: var(--cream); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

.nav-right { display: flex; align-items: center; gap: 20px; }

.lang-toggle { display: flex; align-items: center; gap: 4px; }
.lang-btn {
  font-size: 0.7rem; letter-spacing: 0.1em; padding: 4px 10px;
  border: 1px solid var(--border); border-radius: 2px; color: var(--cream-dim);
  transition: var(--transition-fast);
}
.lang-btn.active { border-color: var(--gold); color: var(--gold); }
.lang-btn:hover { border-color: var(--gold-dark); color: var(--cream); }

.nav-search-btn {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 2px; color: var(--cream-dim);
  transition: var(--transition-fast);
}
.nav-search-btn:hover { border-color: var(--gold); color: var(--gold); }
.nav-search-btn svg { width: 16px; height: 16px; }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px;
}
.nav-hamburger span { display: block; width: 24px; height: 1px; background: var(--cream); transition: var(--transition); }

.nav-mobile {
  display: none; position: fixed; inset: 0;
  background: rgba(3,3,3,0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  z-index: 999; flex-direction: column; align-items: center; justify-content: center; gap: 32px;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link { font-size: 1.5rem; }
.nav-mobile-close {
  position: absolute; top: 30px; right: 30px;
  color: var(--cream-dim); font-size: 1.5rem; background: none; border: none; cursor: pointer;
  transition: var(--transition-fast);
}
.nav-mobile-close:hover { color: var(--gold); }

/* ── Search Modal ──────────────────────────────────────────── */
#search-modal {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(3,3,3,0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; align-items: center;
  justify-content: flex-start; padding-top: 100px;
  opacity: 0; pointer-events: none; transition: var(--transition);
}
#search-modal.open { opacity: 1; pointer-events: all; }
.search-modal-inner { width: min(700px, 90%); }
.search-modal-title {
  font-family: var(--font-display); font-size: 2.5rem; font-weight: 700;
  color: var(--gold); margin-bottom: 8px; text-align: center;
}
.search-modal-sub { font-size: 0.85rem; color: var(--cream-dim); text-align: center; margin-bottom: 40px; }
.search-input-wrap {
  display: flex; gap: 0; border: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--gold);
}
#search-input {
  flex: 1; background: transparent; padding: 16px 20px;
  font-size: 1.1rem; color: var(--cream); outline: none; border: none;
}
#search-submit {
  padding: 16px 28px; background: var(--gold); color: var(--black);
  font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; font-weight: 600;
}
#search-submit:hover { background: var(--gold-light); }
.search-close {
  position: absolute; top: 30px; right: 40px;
  font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--cream-dim); cursor: pointer; transition: var(--transition-fast);
}
.search-close:hover { color: var(--gold); }
.search-results {
  margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px;
}
.search-thinking { margin-top: 24px; color: var(--cream-dim); font-size: 0.85rem; text-align: center; display: none; }
.search-thinking.active { display: block; }

/* ── Hero ──────────────────────────────────────────────────── */
#home { min-height: 100vh; position: relative; overflow: hidden; display: flex; align-items: center; }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 50%, rgba(201,169,110,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 80% at 20% 80%, rgba(193,127,106,0.04) 0%, transparent 60%),
    var(--black);
}
.hero-lines {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(201,169,110,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,169,110,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative; z-index: 2; padding: 0 8%; padding-top: 80px;
  width: 100%; display: flex; flex-direction: column; gap: 60px; align-items: flex-start;
}
@media (min-width: 1025px) {
  .hero-content { display: flex; flex-direction: column; align-items: flex-start; }
}
.hero-text { width: 100%; }
.hero-badge { margin-bottom: 2rem; }
.hero-h1 {
  font-family: var(--font-display); font-size: clamp(3rem, 6vw, 6.5rem);
  font-weight: 700; line-height: 1.35; letter-spacing: -0.02em; margin-bottom: 1.5rem;
}
.hero-h1 .line-2 { color: var(--gold); }
.hero-sub { font-size: 1rem; color: var(--cream-dim); max-width: 600px; line-height: 1.8; margin-bottom: 1rem; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 60px; flex-wrap: wrap; }
.hero-stat-num {
  font-family: var(--font-display); font-size: 3.5rem; font-weight: 700;
  color: var(--gold); display: block; line-height: 1.2;
}
.hero-stat-label { font-size: 0.85rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cream-dim); margin-top: 2px; }

.hero-foil-wrapper { position: relative; margin-top: 2rem; margin-bottom: 2.5rem; }
.hero-foil-imgbox { overflow: hidden; border-radius: var(--radius-md); border: 1px solid var(--border); }
.hero-foil-cover { display: block; width: 100%; height: auto; aspect-ratio: 1.91 / 1; object-fit: cover; object-position: center; }

/* ── Hotspots trên ảnh cover ─────────────────────────────────── */
.hero-hotspots { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.hotspot {
  position: absolute; transform: translate(-50%, -50%);
  background: none; border: none; padding: clamp(8px, 1vw + 5px, 10px); margin: calc(-1 * clamp(8px, 1vw + 5px, 10px));
  cursor: pointer; pointer-events: auto; -webkit-tap-highlight-color: transparent;
}
.hotspot-dot {
  --hs: clamp(7px, 1.5vw + 4px, 14px); /* nguồn scale duy nhất cho cả dot + glow + ripple */
  position: relative; display: block;
  width: var(--hs); height: var(--hs); border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff8e1 0%, #ffd76a 45%, #d4af37 100%);
  border: 2px solid rgba(13,13,13,0.9);
  box-shadow: 0 0 0 0 rgba(255,215,110,0.7), 0 0 calc(var(--hs)*0.7) calc(var(--hs)*0.14) rgba(255,215,110,0.65);
  animation: hotspotPulse 1.5s ease-in-out infinite, hotspotColorShift 3.2s ease-in-out infinite;
}
/* Vòng sóng lan toả — 2 vòng lệch nhịp để tạo hiệu ứng "radar" liên tục,
   giúp hotspot nổi bật và thu hút ánh nhìn ngay cả khi không hover.
   inset dùng calc(var(--hs)) nên vòng sóng luôn scale đúng theo size dot,
   không bị "to hơn dot" bất cân xứng trên màn hình nhỏ. */
.hotspot-dot::before,
.hotspot-dot::after {
  content: ''; position: absolute; inset: calc(var(--hs) * -0.22); border-radius: 50%;
  border: calc(var(--hs)*0.14) solid rgba(255, 215, 110, 0.85); pointer-events: none;
  animation: hotspotRipple 1.8s ease-out infinite;
}
.hotspot-dot::after { animation-delay: 0.9s; }
@keyframes hotspotPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255,215,110,0.7), 0 0 calc(var(--hs)*0.7) calc(var(--hs)*0.14) rgba(255,215,110,0.65);
  }
  50% {
    transform: scale(1.3);
    box-shadow: 0 0 0 calc(var(--hs)*0.43) rgba(255,215,110,0.15), 0 0 calc(var(--hs)*1.3) calc(var(--hs)*0.43) rgba(255,215,110,0.95);
  }
}
@keyframes hotspotRipple {
  0%   { transform: scale(0.9); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}
/* Hiệu ứng chuyển màu Tím ↔ Vàng — dùng chung cho hotspot Hero và
   hotspot preview Quick Start. Xoay hue trên toàn bộ dot (kể cả ripple
   ::before/::after vì filter áp dụng cho cả subtree render của phần tử). */
@keyframes hotspotColorShift {
  0%, 100% { filter: hue-rotate(0deg); }
  50%      { filter: hue-rotate(205deg); }
}
.hotspot:hover .hotspot-dot,
.hotspot:focus .hotspot-dot,
.hotspot:focus-visible .hotspot-dot {
  animation-play-state: paused; transform: scale(1.4);
  box-shadow: 0 0 0 calc(var(--hs)*0.43) rgba(255,215,110,0.25), 0 0 calc(var(--hs)*1.4) calc(var(--hs)*0.57) rgba(255,215,110,1);
}
.hotspot-tip {
  position: absolute; left: 50%; bottom: calc(100% + 12px); transform: translateX(-50%) translateY(6px);
  background: #0d0d0d; border: 1px solid rgba(212,175,55,0.35); border-radius: 10px;
  overflow: hidden; width: clamp(100px, 22vw + 40px, 150px); color: #fff;
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease; z-index: 4;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
}
.hotspot-tip img {
  display: block; width: 100%; height: clamp(65px, 15vw + 26px, 100px); object-fit: cover; background: #1a1a1a;
}
.hotspot-tip-label {
  display: block; padding: clamp(6px, 1vw + 4px, 8px) clamp(8px, 1vw + 5px, 10px);
  font-size: clamp(0.66rem, 0.9vw + 0.5rem, 0.74rem); letter-spacing: 0.03em;
  text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hotspot-tip::after {
  content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  border: 6px solid transparent; border-top-color: #0d0d0d;
}

/* Biến thể: hotspot gần mép trên khung ảnh → bung tooltip xuống dưới
   thay vì lên trên, tránh bị cắt bởi overflow:hidden của khung ảnh. */
.hotspot--below .hotspot-tip {
  bottom: auto; top: calc(100% + 12px); transform: translateX(-50%) translateY(-6px);
}
.hotspot--below:hover .hotspot-tip,
.hotspot--below:focus .hotspot-tip,
.hotspot--below:focus-visible .hotspot-tip {
  transform: translateX(-50%) translateY(0);
}
.hotspot--below .hotspot-tip::after {
  top: auto; bottom: 100%; border-top-color: transparent; border-bottom-color: #0d0d0d;
}

.hotspot:hover .hotspot-tip,
.hotspot:focus .hotspot-tip,
.hotspot:focus-visible .hotspot-tip {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.hero-orb-1 { top: -100px; right: -100px; animation-delay: 0s; }
.hero-orb-2 { bottom: -100px; left: -100px; animation-delay: 3s; }
.scroll-hint {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--cream-dim); animation: scrollHintFade 2s ease-in-out infinite;
}
.scroll-hint-line { width: 1px; height: 50px; background: linear-gradient(to bottom, var(--gold), transparent); }
@keyframes scrollHintFade { 0%,100%{opacity:0.3} 50%{opacity:1} }

/* ── Section Shared ────────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 70px; }
.section-title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3.2rem); font-weight: 700; margin-bottom: 16px; }
.section-sub { color: var(--cream-dim); max-width: 540px; margin: 0 auto; }

/* ── Services ──────────────────────────────────────────────── */
#services { padding: 120px 8%; background: var(--black-soft); border-top: 1px solid var(--border-soft); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 24px; max-width: 1400px; margin: 0 auto;
}
.service-card {
  background: rgba(10,10,10,0.96); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 32px; padding: 40px 30px 28px;
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 580px; position: relative; overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: rgba(212,175,55,0.35); box-shadow: 0 24px 60px rgba(0,0,0,0.28); }
.service-icon { width: 100%; min-height: 96px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.service-icon .service-icon-img { width: 280px; height: 200px; object-fit: scale-down; transition: transform 0.75s cubic-bezier(0.1,0.1,0.1,0.1); transform-style: preserve-3d; }
.service-box-icon { width: 100%; min-height: 80px; display: flex; align-items: center; justify-content: center; }
.service-box-icon .service-icon-img { width: 200px; height: 150px; object-fit: scale-down; transition: transform 0.75s cubic-bezier(0.1,0.1,0.1,0.1); }
.service-card:hover .service-icon .service-icon-img { transform: rotateY(360deg) scale(1.4); }
.service-card:hover .service-box-icon .service-icon-img { transform: rotateY(360deg) scale(2.5); }
.service-card-title-1, .service-card-title-2, .service-card-title-3 {
  font-family: var(--font-display); font-size: 2rem; font-weight: 800; text-align: left;
  line-height: 1.3; color: var(--gold); margin-bottom: 8px;
}
.service-details-box {
  border: 1px solid rgba(212,175,55,0.35); border-radius: 28px;
  padding: 4px 22px 20px; background: rgba(255,255,255,0.03); margin-bottom: 22px;
}
.service-features { display: grid; gap: 14px; }
.service-feat { position: relative; padding-left: 28px; color: var(--cream); font-size: 0.92rem; line-height: 1.8; }
.service-feat::before {
  content: ''; position: absolute; left: 0; top: 0.8em;
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, #f8e38c 0%, #d4af37 100%);
}
.service-button {
  width: 100%; border: none; outline: none;
  display: inline-flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 18px 24px; border-radius: 24px;
  background: linear-gradient(135deg, #f8e38c 0%, #d4af37 100%);
  color: #111; font-weight: 800; font-size: 0.95rem;
  text-transform: uppercase; letter-spacing: 0.12em; cursor: pointer;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}
.service-button:hover { transform: translateY(-3px); box-shadow: 0 20px 42px rgba(212,175,55,0.24); }

/* ── Quick Start ───────────────────────────────────────────── */
#quick-start {
  padding: 100px 6%;
  background: linear-gradient(180deg, #040404 0%, #0b0b0b 100%);
  border-top: 1px solid rgba(212,175,55,0.12);
  border-bottom: 1px solid rgba(212,175,55,0.12);
}

/* Shared block label */
.qs-block-label {
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: 14px;
}

/* ── ROW 1: Carousel — full width ── */
.qs-carousel-block {
  width: 100%; margin-bottom: 36px;
  border: 1px solid rgba(212,175,55,0.16); border-radius: 20px;
  background: rgba(8,8,8,0.9); padding: 20px 20px 16px;
}

/* Carousel */
.product-carousel-wrapper {
  position: relative; width: 100%;
  height: 220px;              /* fixed height, never overflow */
  overflow: hidden; border-radius: 12px;
  background: transparent;
  display: flex; align-items: center;
}
/* fade edges */
.product-carousel-wrapper::before,
.product-carousel-wrapper::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 60px; z-index: 2; pointer-events: none;
}
.product-carousel-wrapper::before { left: 0; background: linear-gradient(to right, rgba(8,8,8,0.9), transparent); }
.product-carousel-wrapper::after  { right: 0; background: linear-gradient(to left,  rgba(8,8,8,0.9), transparent); }

.product-carousel {
  display: flex; gap: 12px; padding: 0 8px;
  width: max-content; will-change: transform; flex-shrink: 0;
}
@keyframes scrollCarousel {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.product-carousel-wrapper.is-autoplay .product-carousel {
  animation: scrollCarousel 60s linear infinite;
}
.product-card {
  display: flex; flex-direction: column; align-items: center;
  border: 1.5px solid rgba(255,255,255,0.08); border-radius: 12px;
  background: rgba(12,12,12,0.95); color: var(--cream); cursor: pointer; overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
  width: 148px; flex-shrink: 0;
}
.product-card:hover  { transform: translateY(-3px); border-color: rgba(212,175,55,0.6); }
.product-card.active { border-color: var(--gold); background: linear-gradient(180deg, rgba(212,175,55,0.1), rgba(9,9,9,0.98)); box-shadow: 0 0 16px rgba(212,175,55,0.2); }
.product-thumb-wrapper { width: 100%; aspect-ratio: 5/6; overflow: hidden; }
.product-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.product-card:hover .product-thumb { transform: scale(1.06); }
.product-name {
  width: 100%; padding: 7px 6px; text-align: center; font-size: 0.65rem;
  font-weight: 700; color: var(--gold); background: rgba(8,8,8,0.92);
  border-top: 1px solid rgba(255,255,255,0.06); text-transform: uppercase; letter-spacing: 0.08em;
}

/* ── ROW 2: Preview + Options + Extras (3 columns) ── */
.qs-main-grid {
  display: grid;
  grid-template-columns: 3.5fr 2.5fr 2.5fr;
  gap: 32px;
  align-items: start;
}

/* Preview column */
.qs-preview-col { display: flex; flex-direction: column; }
.qs-preview-card {
  border: 1px solid rgba(212,175,55,0.18); border-radius: 20px;
  background: rgba(8,8,8,0.96); overflow: hidden;
}
.qs-preview-img-wrap { position: relative; }
.qs-preview-card .preview-img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block;
}
.qs-hotspot {
  position: absolute; z-index: 4; transform: translate(-50%, -50%);
  border: 0; background: transparent; padding: 0; cursor: pointer;
}
.qs-hotspot-dot {
  --hs: clamp(8px, 1.5vw + 4.5px, 16px);
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  width: var(--hs); height: var(--hs); border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff8e1 0%, #ffd76a 45%, #d4af37 100%);
  box-shadow: 0 0 0 0 rgba(255,215,110,0.7), 0 0 calc(var(--hs)*0.62) calc(var(--hs)*0.12) rgba(255,215,110,0.65);
  border: 2px solid rgba(255,255,255,0.95);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: hotspotPulse 1.5s ease-in-out infinite, hotspotColorShift 3.2s ease-in-out infinite;
}
/* Vòng sóng lan toả — giống hệt hotspot Hero */
.qs-hotspot-dot::before,
.qs-hotspot-dot::after {
  content: ''; position: absolute; inset: calc(var(--hs) * -0.19); border-radius: 50%;
  border: calc(var(--hs)*0.12) solid rgba(255, 215, 110, 0.85); pointer-events: none;
  animation: hotspotRipple 1.8s ease-out infinite;
}
.qs-hotspot-dot::after { animation-delay: 0.9s; }
.qs-hotspot:hover .qs-hotspot-dot,
.qs-hotspot.active .qs-hotspot-dot {
  animation-play-state: paused; transform: scale(1.4);
  box-shadow: 0 0 0 calc(var(--hs)*0.38) rgba(255,215,110,0.25), 0 0 calc(var(--hs)*1.25) calc(var(--hs)*0.5) rgba(255,215,110,1);
}
.qs-hotspot-card {
  position: absolute; top: calc(100% + 8px); left: 50%;
  width: clamp(120px, 26vw + 40px, 170px); padding: clamp(7px, 1vw + 5px, 10px); border-radius: 12px;
  background: rgba(6, 12, 18, 0.96); border: 1px solid rgba(45,212,191,0.35);
  box-shadow: 0 12px 30px rgba(0,0,0,0.35); transform: translateX(-50%) translateY(6px);
  opacity: 0; visibility: hidden; pointer-events: none; transition: all 0.2s ease;
}
.qs-hotspot-card img {
  width: 100%; height: clamp(50px, 12vw + 22px, 72px); object-fit: cover; border-radius: 8px; margin-bottom: 8px;
  display: block;
}
.qs-hotspot-card strong {
  display: block; color: #d1fae5; font-size: clamp(0.68rem, 0.8vw + 0.5rem, 0.76rem); margin-bottom: 4px;
}
.qs-hotspot-card span {
  display: block; color: rgba(255,255,255,0.8); font-size: clamp(0.64rem, 0.7vw + 0.48rem, 0.7rem); line-height: 1.4;
}
.qs-hotspot:hover .qs-hotspot-card,
.qs-hotspot.active .qs-hotspot-card {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
/* Biến thể: khi JS tính không đủ chỗ phía dưới (initHotspotSmartPosition
   trong app.js) → bung tooltip lên trên thay vì xuống dưới. */
.qs-hotspot--above .qs-hotspot-card {
  top: auto; bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(-6px);
}
.qs-hotspot--above:hover .qs-hotspot-card,
.qs-hotspot--above.active .qs-hotspot-card {
  transform: translateX(-50%) translateY(0);
}
.qs-foil-preview-badge {
  position: absolute; top: 10px; right: 10px; z-index: 3;
  display: flex; align-items: center; gap: 6px;
  padding: 5px 10px 5px 7px; border-radius: 20px;
  background: rgba(0,0,0,0.68); backdrop-filter: blur(8px);
  border: 1px solid rgba(212,175,55,0.4);
  font-size: 0.7rem; color: var(--cream);
  letter-spacing: 0.07em; text-transform: uppercase; font-weight: 600;
  pointer-events: none;
}
.qs-foil-badge-dot {
  width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0;
  border: 1.5px solid rgba(255,255,255,0.4); display: inline-block;
}
.qs-preview-meta {
  padding: 14px 18px; display: flex; flex-direction: column; gap: 6px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.preview-meta-title { color: var(--cream-dim); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; }
.preview-meta-value { color: var(--gold); font-size: 1rem; font-weight: 700; display: inline; }
.preview-meta-sub   { color: var(--cream-dim); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.preview-meta-desc  { color: var(--cream); font-size: 0.78rem; line-height: 1.5; display: inline; margin-top: 2px; }
.preview-meta-size  { color: var(--cream); font-size: 0.78rem; line-height: 1.5; display: inline; margin-top: 2px; }

/* Options column */
.qs-options-col { display: flex; flex-direction: column; }
.qs-options-card {
  border: 1px solid rgba(212,175,55,0.14); border-radius: 20px;
  background: rgba(8,8,8,0.96); padding: 18px 20px;
  margin-bottom: 0;
}
.option-row {
  display: grid; grid-template-columns: 100px minmax(0,1fr);
  gap: 10px; align-items: center; padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.option-row:last-child { border-bottom: none; }
.option-label { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gold); font-weight: 700; }
.config-select {
  width: 100%; padding: 8px 12px; border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px; background: rgba(18,18,18,0.95); color: var(--cream);
  font-size: 0.85rem; cursor: pointer; transition: var(--transition-fast);
  -webkit-appearance: none; appearance: none;
  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='%23D4AF37' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  padding-right: 32px;
}
.config-select:focus { border-color: var(--gold); outline: none; }
.foil-swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.foil-swatch { width: 28px; height: 28px; border: 2px solid rgba(255,255,255,0.15); border-radius: 50%; cursor: pointer; transition: var(--transition-fast); }
.foil-swatch:hover, .foil-swatch.active { border-color: var(--cream); transform: scale(1.15); box-shadow: 0 0 8px rgba(212,175,55,0.4); }

/* Extras column (Package + Accessories + Upload + CTA) */
.qs-extras-col { display: flex; flex-direction: column; min-width: 0; }
.qs-extras-col .package-card { margin-bottom: 0; }

/* Package card */
.package-card {
  display: flex; flex-direction: row; gap: 14px;
  padding: 16px 16px; border-radius: 14px; border: 1px solid rgba(255,255,255,0.08);
  background: rgba(12,12,12,0.95); cursor: pointer;
  transition: border-color 0.25s ease, transform 0.25s ease;
  height: 100%; justify-content: space-between;
}
.package-card:hover, .package-card.selected { border-color: rgba(212,175,55,0.6); transform: translateY(-1px); }
.package-meta { min-width: 0; flex: 1; }
.package-title  { font-size: 0.85rem; color: var(--cream); font-weight: 800; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
.package-desc   { font-size: 0.78rem; color: var(--cream-dim); line-height: 1.5; }
.package-footer { display: flex; justify-content: flex-end; flex-shrink: 0; gap: 12px; margin-left: 24px; margin-top: 10px; margin-bottom: 10px; }
.package-price  { display: none; }
.btn-booking {
  padding: 9px 20px; border-radius: 10px;
  background: linear-gradient(135deg, #f8e38c 0%, #d4af37 100%);
  color: #111; font-weight: 700; letter-spacing: 0.06em; font-size: 0.74rem; cursor: pointer;
  white-space: nowrap; border: none; transition: filter 0.2s ease;
}
.btn-booking:hover    { filter: brightness(1.1); }
.btn-booking.selected { background: #2a2a2a; color: var(--gold); border: 1px solid var(--gold); }

/* Accessories */
.accessories-list { display: flex; flex-direction: column; gap: 12px; height: 100%; }
.accessory-card {
  display: flex; flex-direction: row; gap: 14px; align-items: center;  justify-content: space-between;
  padding: 12px 14px; border-radius: 14px;
  background: rgba(8,8,8,0.96); border: 1px solid rgba(212,175,55,0.18);
  transition: border-color 0.25s ease, background 0.25s ease; flex: 1;
}
.accessory-card:hover    { border-color: rgba(212,175,55,0.4); }
.accessory-card.selected { background: rgba(212,175,55,0.06); border-color: rgba(212,175,55,0.5); }
.accessory-image { width: 64px; height: 64px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
.accessory-content { display: flex; flex-direction: column; gap: 6px; min-width: 0; align-items: flex-start; }
.accessory-name { color: var(--gold); font-size: 0.82rem; font-weight: 700; }
.accessory-select {
  width: auto; padding: 6px 10px; border-radius: 8px; text-align: left; text-align-last: left; min-width: 0; max-width: none; box-sizing: border-box; direction: 1tr;
  border: 1px solid rgba(255,255,255,0.12); background: rgba(20,20,20,0.9);
  color: var(--cream); font-size: 0.76rem; cursor: pointer; flex: 1;
}
  .accessory-color-select,
  .accessory-option-select { flex: 1 1 150px; min-width: 0; max-width: 220px; }
  .accessory-colors-row
  {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
    justify-content: flex-start;
  }
  .accessory-options-row
  {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
    justify-content: flex-start;
  }
  .ribbon-quantity-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
    justify-content: flex-start;
  }
  .accessory-colors-label,
  .accessory-option-label,
  .ribbon-qty-label {
    font-size: 0.76rem;
    color: var(--cream-dim);
    white-space: nowrap;
    min-width: 90px;
    flex-shrink: 0;
  }
.ribbon-qty-picker { display: flex; align-items: center; background: #1a1a1a; border: 1px solid #333; border-radius: 4px; overflow: hidden; height: 26px; }
.ribbon-qty-btn { background: transparent; border: none; color: var(--gold); width: 24px; height: 100%; cursor: pointer; font-size: 13px; font-weight: bold; display: flex; align-items: center; justify-content: center; }
.ribbon-qty-btn:hover { background: #2a2a2a; }
.ribbon-qty-input { width: 32px; height: 100%; background: transparent; border: none; border-left: 1px solid #333; border-right: 1px solid #333; color: #fff; text-align: center; font-size: 12px; -moz-appearance: textfield; }
.ribbon-qty-input::-webkit-inner-spin-button, .ribbon-qty-input::-webkit-outer-spin-button { -webkit-appearance: none; }

/* Upload zone */
.qs-upload-zone {
  border: 1.5px dashed rgba(212,175,55,0.3); border-radius: 12px; flex-direction: column; text-align: center;
  padding: 16px 20px; display: flex; align-items: center; gap: 12px;
  cursor: pointer; background: rgba(8,8,8,0.8); transition: border-color 0.25s ease;
}
.qs-upload-zone:hover { border-color: var(--gold); background: rgba(212,175,55,0.04); }
.qs-upload-icon { font-size: 1.4rem; color: var(--gold); line-height: 1; flex-shrink: 0; }
.qs-upload-label { font-size: 0.8rem; color: var(--cream-dim); line-height: 1.4; }

/* Download reference file zone */
.qs-download-zone {
  display: flex; align-items: center; gap: 14px;
  border: 1.5px solid rgba(212,175,55,0.25); border-radius: 12px;
  padding: 14px 16px; background: rgba(8,8,8,0.8);
  text-decoration: none; color: inherit;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.qs-download-zone:hover {
  border-color: var(--gold); background: rgba(212,175,55,0.06);
}
.qs-download-icon {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  background: rgba(212,175,55,0.12); display: flex; align-items: center;
  justify-content: center; color: var(--gold);
}
.qs-download-info {
  display: flex; flex-direction: column; gap: 3px; min-width: 0; flex: 1;
}
.qs-download-name {
  font-size: 0.82rem; font-weight: 700; color: var(--cream);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.qs-download-meta {
  font-size: 0.72rem; color: var(--cream-dim); line-height: 1.4;
}
.qs-download-badge {
  flex-shrink: 0; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.1em;
  background: rgba(212,175,55,0.15); color: var(--gold);
  border: 1px solid rgba(212,175,55,0.3); border-radius: 6px;
  padding: 3px 8px; text-transform: uppercase;
}

/* CTA button */
.config-order-btn {
  width: 100%; justify-content: center; padding: 16px 24px;
  font-size: 0.85rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
}

/* ── Removed: old configurator-grid, config-left/right, preview-panel, right-actions-row ── */
.configurator-grid, .config-left, .config-right,
.preview-panel, .preview-block, .preview-details,
.options-block, .right-actions-row, .packages-section,
.packages-label, .accessories-block,
.config-price-order, .price-display, .price-val, .price-note { display: none !important; }

/* ── Custom Design ─────────────────────────────────────────── */
#custom-design { padding: 120px 8%; background: #0a0a0f; border-top: 1px solid var(--border-soft); }

/* ════════════════════════════════════════════════════════════
   CUSTOM DESIGN — Mockup Studio
   ════════════════════════════════════════════════════════════ */
.cd-wrap { max-width: 1500px; margin: 0 auto; }

.cd-stage {
  position: relative;
  display: grid;
  grid-template-columns: 290px 1fr 56px;
  height: 720px;
  background: #1c1c24;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid #2a2a38;
  box-shadow: 0 30px 80px rgba(0,0,0,0.85);
}

/* ── LEFT PANEL ── */
.cd-left-panel {
  background: #ffffff;
  color: #1a1a1a;
  padding: 20px;
  overflow-y: auto;
  border-right: 1px solid #e5e5ea;
}
.cd-panel-title {
  font-size: 0.95rem; font-weight: 700; color: #1a1a1a; margin-bottom: 14px;
}
.cd-panel-title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.cd-back-btn {
  font-size: 0.72rem; color: #7c5cff; background: none; border: none; cursor: pointer; font-weight: 600;
}
.cd-back-btn:hover { text-decoration: underline; }

.cd-upload-dropzone {
  border: 1.5px dashed #c9c0ff; background: #f5f2ff; border-radius: 14px;
  padding: 28px 16px; display: flex; flex-direction: column; align-items: center; gap: 12px;
  cursor: pointer; color: #9b8fd9; transition: border-color 0.2s ease, background 0.2s ease;
}
.cd-upload-dropzone:hover { border-color: #7c5cff; background: #efe9ff; }
.cd-upload-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: #7c5cff; color: #fff; border: none; border-radius: 999px;
  padding: 9px 22px; font-weight: 700; font-size: 0.82rem; cursor: pointer;
  transition: background 0.2s ease;
}
.cd-upload-btn:hover { background: #6a4ce8; }

.cd-text-link {
  display: block; width: 100%; text-align: left;
  background: #f7f7fa; border: 1px solid #ececf2; border-radius: 10px;
  padding: 10px 14px; margin-top: 10px; font-size: 0.82rem; color: #444;
  cursor: pointer; transition: background 0.2s ease, border-color 0.2s ease;
}
.cd-text-link:hover { background: #efeeff; border-color: #c9c0ff; color: #5b3fd6; }

.cd-divider { height: 1px; background: #ececf2; margin: 16px 0; }

.cd-info-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 4px; cursor: pointer; border-radius: 8px; transition: background 0.2s ease;
}
.cd-info-row:hover { background: #f7f7fa; }
.cd-info-text { display: flex; flex-direction: column; gap: 3px; }
.cd-info-label { font-size: 0.7rem; color: #999; text-transform: none; }
.cd-info-value { font-size: 0.86rem; color: #1a1a1a; font-weight: 600; }
.cd-info-arrow { color: #bbb; font-size: 1.1rem; transition: transform 0.2s ease; }
.cd-info-row.open .cd-info-arrow { transform: rotate(90deg); }

.cd-material-options, .cd-size-options {
  display: none; padding: 8px 4px 4px;
}
.cd-material-options.open, .cd-size-options.open { display: block; }

.cd-material-options {
  display: none;
  grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.cd-material-options.open { display: grid; }
.paper-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  border: 2px solid transparent; border-radius: 10px; padding: 4px;
  background: none; cursor: pointer; transition: border-color 0.2s ease, transform 0.2s ease;
}
.paper-btn:hover { transform: scale(1.04); }
.paper-btn.active { border-color: #7c5cff; }
.paper-btn img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; }
.paper-btn span { font-size: 0.68rem; color: #555; }

.cd-size-options select {
  width: 100%; padding: 9px 12px; border-radius: 10px; border: 1px solid #e0e0ea;
  background: #f7f7fa; color: #333; font-size: 0.82rem; cursor: pointer;
}

.cd-model-id { font-size: 0.7rem; color: #aaa; }

/* Text editor (left panel, dark inputs on white bg) */
.cd-field { margin-bottom: 14px; }
.cd-field label { display: block; font-size: 0.72rem; color: #888; margin-bottom: 6px; font-weight: 600; }
.cd-field input[type="text"], .cd-field select, .cd-field input[type="number"] {
  width: 100%; background: #f7f7fa; border: 1px solid #e0e0ea; color: #1a1a1a;
  padding: 9px 12px; border-radius: 8px; box-sizing: border-box; font-size: 0.85rem;
}
.cd-size-row-input { display: flex; align-items: center; gap: 10px; }
.cd-size-row-input input[type="range"] { flex: 1; }
.cd-size-row-input input[type="number"] { width: 60px; text-align: center; }
.cd-field input[type="color"] { width: 100%; height: 42px; border: 1px solid #e0e0ea; border-radius: 8px; cursor: pointer; background: none; }
.cd-style-btns { display: flex; gap: 8px; }
.cd-style-btns button {
  flex: 1; padding: 10px; background: #f7f7fa; border: 1px solid #e0e0ea; border-radius: 8px;
  cursor: pointer; font-weight: 700; font-size: 0.9rem; transition: background 0.2s ease;
}
.cd-style-btns button:hover { background: #efeeff; }

/* ── CANVAS / MOCKUP STAGE ── */
.cd-canvas-wrap {
  position: relative;
  background: #d9d9de;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.cd-watermark-bg {
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(
    -35deg,
    transparent 0px, transparent 90px,
    rgba(0,0,0,0.045) 90px, rgba(0,0,0,0.045) 91px
  );
  background-size: 220px 220px;
}
.cd-watermark-bg::before {
  content: 'M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH M.VLIENMINH';
  position: absolute; inset: -20%;
  display: flex; flex-wrap: wrap; align-content: space-around; justify-content: space-around;
  font-size: 0.95rem; font-weight: 600; color: rgba(0,0,0,0.05);
  word-spacing: 70px; line-height: 90px; transform: rotate(-12deg);
  pointer-events: none;
}

.cd-empty-hint {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  text-align: center; color: rgba(0,0,0,0.35); font-size: 1rem; font-weight: 600;
  pointer-events: none; z-index: 1;
}
.cd-empty-hint-sub { font-size: 0.8rem; font-weight: 400; color: rgba(0,0,0,0.25); }
.card-canvas:not(:empty) ~ .cd-empty-hint,
.cd-canvas-wrap.has-content .cd-empty-hint { display: none; }

.card-canvas {
  position: relative; z-index: 2;
  width: 520px; height: 320px;
  background: #ffffff; border-radius: 8px;
  box-shadow: 0 25px 70px rgba(0,0,0,0.35);
  overflow: hidden; flex-shrink: 0;
  transition: transform 0.3s ease;
}
.cd-bleed-guide {
  position: absolute; inset: 14px; border: 1.5px dashed rgba(91,138,247,0.4);
  pointer-events: none; border-radius: 4px; z-index: 1;
}

/* Logo placeholder */
#logo-placeholder {
  position: absolute; left: 40px; top: 40px; width: 140px; height: 140px;
  background: #f5f5f7; border: 2px dashed #c4c4cc; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; cursor: move; z-index: 5;
}
.cd-logo-placeholder-inner { text-align: center; color: #888; padding: 8px; }
.cd-logo-placeholder-inner img { width: 42px; height: 42px; opacity: 0.6; margin: 0 auto 6px; display: block; }
.cd-logo-text { font-weight: 600; font-size: 11px; color: #555; }
.cd-logo-sub { font-size: 9px; margin-top: 3px; color: #999; }
.cd-logo-sub2 { font-size: 9px; color: #bbb; }

/* Draggable elements */
.draggable-el { user-select: none; }
.draggable-el:hover { box-shadow: 0 0 0 2px rgba(124,92,255,0.4) !important; }
.image-editor-element { border: 1px solid transparent; background: transparent; }
.image-editor-element .resize-handle {
  position: absolute;
  right: -6px;
  bottom: -6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border: 2px solid var(--black-mid);
  box-shadow: 0 0 0 2px rgba(212,175,55,0.2);
  cursor: nwse-resize;
  z-index: 120;
}

/* Dieline gallery overlay */
#dieline-gallery {
  display: none; position: absolute; top: 16px; left: 16px; right: 16px;
  max-height: 200px; overflow-y: auto; background: rgba(255,255,255,0.96);
  border-radius: 12px; padding: 14px; box-shadow: 0 8px 30px rgba(0,0,0,0.15); z-index: 6;
}
#dieline-gallery.open { display: block; }
#templates-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; }
#templates-grid > div {
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 8px;
  border-radius: 8px; background: #f7f7fa; border: 1px solid #ececf2; cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
#templates-grid > div:hover { border-color: #7c5cff; transform: scale(1.04); }
#templates-grid img { width: 100%; aspect-ratio: 0.8; object-fit: cover; border-radius: 6px; }
#templates-grid > div div { font-size: 10px; color: #777; text-align: center; line-height: 1.3; }

/* ── RIGHT TOOLBAR (vertical icons) ── */
.cd-right-toolbar {
  background: #1c1c24; border-left: 1px solid #2a2a38;
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 16px 0;
}
.cd-tool-btn {
  width: 36px; height: 36px; border-radius: 10px; border: none; background: none;
  color: #888; display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.cd-tool-btn:hover { background: #2a2a38; color: var(--gold); }
.cd-tool-btn.active { background: rgba(212,175,55,0.15); color: var(--gold); }
.cd-tool-divider { width: 22px; height: 1px; background: #333; margin: 6px 0; }

/* ── BOTTOM FLOATING BAR ── */
.cd-bottom-bar {
  position: absolute; bottom: 18px; left: 55%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(10px);
  border-radius: 999px; padding: 8px 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2); z-index: 10;
  max-width: calc(100% - 32px);
}
.cd-zoom-btn {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid #e0e0ea; background: #fff;
  font-size: 1.1rem; font-weight: 700; color: #555; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease;
}
.cd-zoom-btn:hover { background: #f0f0f5; }
.cd-slider-group {
  display: flex; align-items: center; gap: 8px; font-size: 0.72rem; color: #888;
  padding: 0 8px; border-left: 1px solid #e8e8ee; border-right: 1px solid #e8e8ee;
}
.cd-slider-group input[type="range"] { width: 90px; accent-color: #7c5cff; }
.cd-icon-btn {
  width: 32px; height: 32px; border-radius: 8px; border: none; background: none;
  color: #888; display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.cd-icon-btn:hover { background: #f0f0f5; color: #7c5cff; }
.cd-delete-toolbar-btn {
  width: auto;
  min-width: 48px;
  padding: 0 8px;
  border-radius: 999px;
  background: transparent;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #888;
  text-transform: uppercase;
}
.cd-delete-toolbar-btn:hover { background: #f0f0f5; color: #7c5cff; }
.cd-watermark-toggle {
  display: flex; align-items: center; gap: 6px;
  background: #fff7e0; border: 1px solid #ffe5a3; color: #b8860b;
  border-radius: 999px; padding: 7px 14px; font-size: 0.74rem; font-weight: 700; cursor: pointer;
  white-space: nowrap; transition: background 0.2s ease;
}
.cd-watermark-toggle:hover { background: #fff1cc; }
.cd-watermark-dot { width: 8px; height: 8px; border-radius: 50%; background: #f5b800; display: inline-block; }

/* ── Submit row ── */
.cd-submit-row {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  margin-top: 28px; padding: 24px 28px; border-radius: 16px;
  background: rgba(212,175,55,0.05); border: 1px solid rgba(212,175,55,0.18); flex-wrap: wrap;
}
.cd-submit-text { display: flex; flex-direction: column; gap: 4px; }
.cd-submit-text strong { font-size: 1.05rem; color: var(--cream); }
.cd-submit-text span { font-size: 0.85rem; color: var(--cream-dim); }

/* ── Premium ───────────────────────────────────────────────── */
#premium { padding: 120px 8%; background: var(--black); border-top: 1px solid var(--border-soft); }
.premium-grid { display: grid; grid-template-columns: 3fr 7fr; gap: 80px; margin-top: 60px; align-items: start; }
.premium-anti-badge { display: inline-block; padding: 6px 16px; border: 1px solid rgba(201,169,110,0.3); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.premium-anti-title { font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 28px; }
.premium-features-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 40px; }
.premium-feat-item { display: flex; gap: 16px; padding: 20px; border: 1px solid var(--border); border-left: 2px solid var(--gold); background: rgba(201,169,110,0.02); flex-wrap: wrap; }
.premium-feat-name { font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
.premium-feat-desc { font-size: 0.8rem; color: var(--cream-dim); }
.image-zoom-hover { overflow: hidden; border-radius: var(--radius-md); transition: var(--transition); }
.image-zoom-hover img { display: block; transition: transform 0.4s cubic-bezier(0.4,0,0.2,1); transform-origin: center top; }
.image-zoom-hover:hover img { transform: scale(1.35); }

.premium-form {
  background: rgba(13,13,13,0.7); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border); border-radius: var(--radius-md); padding: 40px;
}
.premium-form-title { font-family: var(--font-display); font-size: 1.6rem; margin-bottom: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--cream-dim); }
.form-input, .form-textarea {
  padding: 12px 16px; background: var(--black-mid); border: 1px solid var(--border);
  color: var(--cream); font-size: 0.88rem; border-radius: var(--radius-sm);
  outline: none; transition: var(--transition-fast); width: 100%;
}
.form-input:focus, .form-textarea:focus { border-color: var(--gold); background: rgba(212,175,55,0.04); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-submit-note { font-size: 0.75rem; color: var(--cream-dim); margin-top: 8px; text-align: center; }

/* Dark dropdown options — áp dụng cho mọi select trong trang */
select.form-input,
select.config-select,
select.accessory-select,
select.contact-service-select {
  background-color: var(--black-mid);
  color: var(--cream);
}
select.form-input option,
select.config-select option,
select.accessory-select option,
select option {
  background-color: #1a1a1a;
  color: var(--cream);
}

/* ── Portfolio ─────────────────────────────────────────────── */
#portfolio { padding: 120px 8%; background: var(--black-soft); border-top: 1px solid var(--border-soft); }
.portfolio-filters { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 50px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.portfolio-filter {
  padding: 12px 24px; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cream-dim); cursor: pointer; transition: var(--transition-fast);
  border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
}
.portfolio-filter.active, .portfolio-filter:hover { color: var(--gold); border-bottom-color: var(--gold); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--border); }
.portfolio-item { position: relative; overflow: hidden; cursor: pointer; background: rgba(13,13,13,0.8); aspect-ratio: 4/3; }
.portfolio-item img { width: 100%; height: 100%; object-fit: cover; object-position: var(--img-position, center center); transition: transform 0.6s ease; }
.portfolio-item:hover img { transform: scale(1.08); }
.portfolio-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,8,8,0.95) 0%, rgba(8,8,8,0.3) 50%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 24px;
  opacity: 0; transition: var(--transition);
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-tag { font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 8px; }
.portfolio-title { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 4px; }
.portfolio-client { font-size: 0.78rem; color: var(--cream-dim); }

/* ── Contact ───────────────────────────────────────────────── */
#contact { padding: 120px 8%; background: var(--black); border-top: 1px solid var(--border-soft); }
.contact-grid { display: grid; grid-template-columns: 3fr 7fr; gap: 80px; margin-top: 60px; }
.contact-info-items { display: flex; flex-direction: column; gap: 32px; margin-top: 40px; }
.contact-info-item { display: flex; gap: 20px; align-items: flex-start; }
.contact-info-icon { width: 44px; height: 44px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--gold); }
.contact-info-label { font-size: 0.68rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--cream-dim); margin-bottom: 4px; }
.contact-info-val { font-size: 0.92rem; color: var(--cream); }
.contact-form-wrap {
  background: rgba(13,13,13,0.7); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border); border-radius: var(--radius-md); padding: 40px;
}
.contact-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Footer ────────────────────────────────────────────────── */
footer {
  background: rgba(10,10,10,0.95); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--border); padding: 80px 8% 40px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 60px; }
.footer-logo { font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--gold); letter-spacing: 0.15em; margin-bottom: 16px; }
.footer-tagline { font-size: 0.85rem; color: var(--cream-dim); max-width: 260px; line-height: 1.8; }
.footer-col-title { font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link { font-size: 0.85rem; color: var(--cream-dim); transition: var(--transition-fast); }
.footer-link:hover { color: var(--cream); }
.footer-bottom { border-top: 1px solid var(--border-soft); padding-top: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copy { font-size: 0.75rem; color: var(--cream-dim); }
.footer-social { display: flex; gap: 16px; }
.footer-social-link { width: 34px; height: 34px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--cream-dim); transition: var(--transition-fast); font-size: 0.85rem; }
.footer-social-link:hover { border-color: var(--gold); color: var(--gold); }

/* ── Toast ─────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 30px; right: 24px; z-index: 5000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--black-mid); border: 1px solid var(--border);
  border-left: 3px solid var(--gold); border-radius: var(--radius-sm);
  padding: 14px 20px; font-size: 0.85rem; max-width: 320px;
  transform: translateX(120%); transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  box-shadow: var(--shadow-card);
}
.toast.show { transform: translateX(0); }
.toast.success { border-left-color: #4CAF50; }
.toast.error   { border-left-color: #f44336; }
.toast.info    { border-left-color: var(--gold); }

/* ── Scroll Reveal ─────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }

/* ── Spinner for form submission ───────────────────────────── */
.btn-spinner {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid rgba(0,0,0,0.3); border-top-color: #000;
  border-radius: 50%; animation: spin 0.7s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */

/* ── Tablet (≤1100px) ──────────────────────────────────────── */
@media (max-width: 1100px) {
  .services-grid    { grid-template-columns: 1fr; max-width: 600px; }
  .premium-grid     { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid     { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid      { grid-template-columns: 1fr 1fr; gap: 40px; }
  .portfolio-grid   { grid-template-columns: repeat(2,1fr); }
  #home             { padding: 80px 6%; }
  #services, #custom-design, #premium, #portfolio, #contact { padding: 100px 6%; }
  #quick-start      { padding: 80px 4%; }
  footer            { padding: 60px 6% 30px; }
  .hero-content     { gap: 40px; }
  /* quick-start: switch to single column on tablet */
  .qs-main-grid     { grid-template-columns: 1fr; gap: 20px; }
}

/* ── iPad Portrait (≤1024px) ───────────────────────────────── */
@media (max-width: 1024px) {
  .nav-links        { gap: 24px; }
  .hero-stat-num    { font-size: 2.8rem; }
  .service-card     { min-height: 480px; padding: 30px 24px; }
  .service-card-title-1, .service-card-title-2, .service-card-title-3 { font-size: 1.7rem; }
  .form-grid        { grid-template-columns: 1fr; }
  .contact-form-grid { grid-template-columns: 1fr; }

  /* Custom Design — slightly narrower left panel on tablet */
  .cd-stage { grid-template-columns: 250px 1fr 52px; height: 640px; }
  .card-canvas { width: 460px; height: 284px; }
}

/* ── Tablet / Large Phone (≤768px) ─────────────────────────── */
@media (max-width: 768px) {
  :root { font-size: 14px; }
  body  { overflow-x: hidden; }

  /* Navbar */
  #navbar           { padding: 0 4%; height: 56px; }
  #navbar.scrolled  { height: 48px; }
  .nav-logo         { font-size: 1.2rem; }
  .nav-links        { display: none; }
  .nav-hamburger    { display: flex; }
  .nav-right        { gap: 10px; }
  .nav-right .btn   { display: none; }

  /* Hero */
  #home             { padding: 60px 4%; padding-top: 72px; }
  .hero-content     { padding: 0 4%; padding-top: 72px; gap: 30px; }
  .hero-h1          { font-size: clamp(2rem, 6vw, 3rem); }
  .hero-foil-text   { font-size: clamp(2rem, 6vw, 3rem); }
  .hero-sub         { font-size: 0.88rem; }
  .hero-ctas        { gap: 10px; margin-bottom: 1.5rem; }
  .hero-stats       { gap: 30px; }
  .hero-stat-num    { font-size: 2rem; }
  .scroll-hint      { display: none; }

  /* Sections */
  #services, #custom-design, #premium, #portfolio, #contact { padding: 70px 4%; }
  #quick-start      { padding: 60px 4%; }
  footer            { padding: 50px 4% 24px; }
  .section-header   { margin-bottom: 40px; }
  .section-title    { font-size: clamp(1.5rem, 3vw, 2.2rem); }

  /* Services */
  .services-grid    { grid-template-columns: 1fr; max-width: 100%; gap: 16px; }
  .service-card     { min-height: auto; padding: 24px 20px; border-radius: 24px; }
  .service-card-title-1, .service-card-title-2, .service-card-title-3 { font-size: 1.5rem; }
  .service-icon .service-icon-img { width: 180px; height: 140px; }
  .service-box-icon .service-icon-img { width: 140px; height: 110px; }

  /* Buttons */
  .btn              { padding: 11px 22px; font-size: 0.72rem; }

  /* Quick Start */
  .qs-carousel-block { padding: 14px 14px 12px; border-radius: 14px; }
  .product-carousel-wrapper { height: 200px; }
  .product-card     { width: 118px; }
  .product-name     { font-size: 0.62rem; padding: 6px 4px; }
  .qs-main-grid     { grid-template-columns: 1fr; gap: 16px; }
  .qs-preview-card .preview-img { aspect-ratio: 16/12; }
  .option-row       { grid-template-columns: 88px 1fr; gap: 8px; }
  .option-row:has(#size-select) {display: none;}
  .option-label     { font-size: 0.72rem; }

  /* Accessories layout on mobile */
  .accessories-list { gap: 12px; }
  .accessory-card   { grid-template-columns: 56px 1fr; }
  .accessory-footer { grid-column: 1 / -1; justify-content: flex-end; margin-top: 8px; }
  .accessory-image  { width: 56px; height: 56px; }

  /* Custom Design — Mockup Studio */
  .cd-stage {
    grid-template-columns: 1fr;
    grid-template-rows: auto 360px 48px;
    height: auto;
  }
  .cd-left-panel { max-height: 320px; border-right: none; border-bottom: 1px solid #e5e5ea; order: 1; }
  .cd-canvas-wrap { order: 2; min-height: 320px; }
  .cd-right-toolbar { order: 3; flex-direction: row; justify-content: center; padding: 8px; }
  .cd-tool-divider { width: 1px; height: 22px; margin: 0 6px; }
  .card-canvas { width: 92%; max-width: 480px; height: auto; aspect-ratio: 520/320; }
  .cd-bottom-bar { flex-wrap: wrap; justify-content: center; gap: 8px; padding: 8px 12px; bottom: 10px; }
  .cd-slider-group { border: none; padding: 0; }
  .cd-watermark-toggle { order: 10; width: 100%; justify-content: center; margin-top: 4px; }
  .cd-submit-row { flex-direction: column; align-items: flex-start; gap: 14px; padding: 18px 20px; }
  .cd-submit-row .btn { width: 100%; justify-content: center; }

  /* Premium */
  .premium-grid     { grid-template-columns: 1fr; gap: 40px; }
  .premium-form     { padding: 24px; }
  .premium-feat-item { flex-wrap: wrap; }

  /* Portfolio */
  .portfolio-grid   { grid-template-columns: repeat(2,1fr); }
  .portfolio-filter { padding: 10px 14px; font-size: 0.68rem; }

  /* Contact */
  .contact-grid     { gap: 36px; margin-top: 36px; }
  .contact-info-items { gap: 24px; margin-top: 24px; }
  .contact-form-wrap { padding: 24px; }
  .contact-form-grid { grid-template-columns: 1fr; gap: 12px; }

  /* Footer */
  .footer-grid      { grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 28px; }
  .footer-bottom    { flex-direction: column; align-items: flex-start; }
}

/* ── Medium Phone (≤640px) ─────────────────────────────────── */
@media (max-width: 640px) {
  :root { font-size: 13px; }

  #home             { padding: 50px 3%; padding-top: 68px; }
  .hero-content     { padding: 0 3%; padding-top: 68px; }
  .hero-h1          { font-size: clamp(1.8rem, 5vw, 2.4rem); }

  #services, #custom-design, #premium, #portfolio, #contact { padding: 60px 3%; }
  #quick-start      { padding: 50px 3%; }
  footer            { padding: 40px 3% 20px; }

  .service-card     { border-radius: 20px; padding: 20px 16px; }
  .service-card-title-1, .service-card-title-2, .service-card-title-3 { font-size: 1.3rem; }
  .service-icon .service-icon-img { width: 140px; height: 110px; }

  .product-carousel-wrapper { height: 180px; }
  .product-card     { width: 104px; }
  .product-name     { font-size: 0.6rem; }

  .portfolio-grid   { grid-template-columns: 1fr; }
  .portfolio-item   { aspect-ratio: 16/9; }
  .footer-grid      { grid-template-columns: 1fr; gap: 20px; }
  .footer-logo      { font-size: 1.3rem; }
  .premium-form     { padding: 20px; }
  .form-grid        { grid-template-columns: 1fr; }
}

/* ── Small Phone (≤480px) ──────────────────────────────────── */
@media (max-width: 480px) {
  :root { font-size: 12px; }

  #navbar           { height: 50px; padding: 0 3%; }
  .nav-logo         { font-size: 1rem; }
  .nav-right        { gap: 8px; }
  .lang-btn         { padding: 3px 8px; font-size: 0.65rem; }

  .hero-h1          { font-size: clamp(1.6rem, 4.5vw, 2rem); }
  .hero-stats       { flex-wrap: wrap; gap: 20px; }
  .hero-stat-num    { font-size: 1.6rem; }

  .section-title    { font-size: clamp(1.2rem, 3vw, 1.6rem); }
  .badge            { font-size: 0.7rem; }

  /* Quick Start phone */
  #quick-start      { padding: 44px 3%; }
  .qs-carousel-block { padding: 12px 10px 10px; border-radius: 12px; }
  .product-carousel-wrapper { height: 162px; }
  .product-card     { width: 92px; }
  .product-name     { font-size: 0.56rem; padding: 5px 3px; letter-spacing: 0.04em; }
  .option-row       { grid-template-columns: 76px 1fr; }
  .option-row:has(#size-select) {display: none;}
  .accessory-card   { grid-template-columns: 48px 1fr; padding: 10px 12px; gap: 10px; }
  .accessory-image  { width: 48px; height: 48px; }
  .accessory-name   { font-size: 0.78rem; }

  .service-button   { padding: 14px 16px; font-size: 0.8rem; }
  .btn              { padding: 10px 18px; font-size: 0.68rem; }
  .config-order-btn { font-size: 0.82rem; }

  /* Custom Design — compact mockup */
  .cd-stage { grid-template-rows: auto 280px 44px; }
  .cd-left-panel { max-height: 260px; padding: 14px; }
  .card-canvas { width: 96%; aspect-ratio: 520/320; }
  .cd-bottom-bar { gap: 6px; padding: 6px 10px; }
  .cd-zoom-btn { width: 26px; height: 26px; font-size: 1rem; }
  .cd-slider-group { font-size: 0.66rem; }
  .cd-slider-group input[type="range"] { width: 60px; }
  .cd-icon-btn { width: 28px; height: 28px; }
  .cd-watermark-toggle { font-size: 0.68rem; padding: 6px 10px; }
  .cd-submit-row { padding: 14px 16px; }

  .contact-form-wrap { padding: 16px; border-radius: 16px; }
  .premium-form     { padding: 16px; border-radius: 16px; }
  .toast-container  { right: 12px; bottom: 16px; }
  .toast            { max-width: calc(100vw - 24px); font-size: 0.78rem; padding: 10px 14px; }
}

/* ── Extra Small (≤375px) ──────────────────────────────────── */
@media (max-width: 375px) {
  .product-carousel-wrapper { height: 148px; }
  .product-card     { width: 82px; }
  .product-name     { font-size: 0.52rem; padding: 4px 2px; }
}