/* ========================================
   KAWIN — STEP 1 Foundation Styles
   Mobile First | Navy / White / Gold
   ======================================== */

:root {
  --color-navy: #0b1f3a;
  --color-navy-deep: #061427;
  --color-navy-soft: #143056;
  --color-white: #ffffff;
  --color-off-white: #f5f7fa;
  --color-gold: #c6a24a;
  --color-gold-bright: #dfbd63;
  --color-gold-dark: #9a7a2e;
  --color-green: #1f8a4c;
  --color-green-soft: #e8f6ee;
  --color-yellow: #c49214;
  --color-yellow-soft: #fff6de;
  --color-red: #b42318;
  --color-red-soft: #fdeceb;
  --color-text: #1a2433;
  --color-muted: #5b6777;
  --color-line: #d8dee8;
  --shadow-soft: 0 12px 32px rgba(11, 31, 58, 0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --font-display: "Oswald", "Kanit", sans-serif;
  --font-body: "Kanit", sans-serif;
  --header-h: 4.25rem;
  --space: clamp(1rem, 4vw, 2rem);
  --max-w: 72rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(198, 162, 74, 0.08), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f7f9fc 48%, #ffffff 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  padding: 0.6rem 1rem;
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0.75rem var(--space);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--color-navy), var(--color-navy-soft));
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: inset 0 0 0 1px rgba(198, 162, 74, 0.45);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-navy);
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--color-muted);
  font-weight: 400;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin-inline: auto;
  background: var(--color-navy);
  transition: transform 0.25s var(--ease), opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  display: none;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow-soft);
}

.site-nav.is-open {
  display: block;
  animation: navDrop 0.28s var(--ease);
}

@keyframes navDrop {
  from {
    opacity: 0;
    transform: translateY(-0.4rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-list {
  display: flex;
  flex-direction: column;
  padding: 0.75rem var(--space) 1.25rem;
  gap: 0.25rem;
}

.nav-list a {
  display: block;
  padding: 0.85rem 0.4rem;
  color: var(--color-navy);
  font-weight: 500;
  border-bottom: 1px solid var(--color-off-white);
}

.nav-list .nav-cta {
  margin-top: 0.5rem;
  text-align: center;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.9rem 1rem;
}

.nav-list .nav-cta:hover,
.nav-list .nav-cta:focus-visible {
  background: var(--color-navy-soft);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-bright));
  color: var(--color-navy-deep);
  box-shadow: 0 10px 24px rgba(198, 162, 74, 0.28);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: linear-gradient(135deg, var(--color-gold-bright), var(--color-gold));
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.06);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-gold);
  color: var(--color-gold-bright);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--color-white);
  background: linear-gradient(160deg, var(--color-navy-deep) 0%, var(--color-navy) 48%, #12325a 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

.hero-glow {
  position: absolute;
  width: 70vw;
  height: 70vw;
  right: -18vw;
  bottom: -10vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 162, 74, 0.28) 0%, transparent 68%);
  animation: glowPulse 6s ease-in-out infinite;
}

.hero-boot {
  position: absolute;
  width: min(78vw, 26rem);
  height: min(78vw, 26rem);
  right: -8%;
  bottom: 8%;
  border-radius: 42% 58% 48% 52%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.18), transparent 28%),
    linear-gradient(145deg, rgba(198, 162, 74, 0.55), rgba(11, 31, 58, 0.1) 45%, rgba(6, 20, 39, 0.85));
  box-shadow:
    0 0 0 1px rgba(198, 162, 74, 0.25),
    0 30px 60px rgba(0, 0, 0, 0.35);
  transform: rotate(-18deg);
  animation: bootFloat 7s var(--ease) infinite;
}

.hero-boot::before {
  content: "";
  position: absolute;
  inset: 18% 22%;
  border-radius: 40% 60% 45% 55%;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max-w));
  margin: 0 auto;
  padding: clamp(3.5rem, 12vw, 6rem) var(--space) clamp(3rem, 10vw, 5rem);
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 14vw, 5.5rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 0.95;
  color: var(--color-white);
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  animation: fadeUp 0.8s var(--ease) both;
}

.hero-title {
  margin-top: 0.75rem;
  font-size: clamp(1.35rem, 5.5vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.92);
  animation: fadeUp 0.8s 0.1s var(--ease) both;
}

.hero-slogan {
  margin-top: 1rem;
  max-width: 22rem;
  color: var(--color-gold-bright);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  animation: fadeUp 0.8s 0.18s var(--ease) both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
  animation: fadeUp 0.8s 0.26s var(--ease) both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bootFloat {
  0%,
  100% {
    transform: rotate(-18deg) translateY(0);
  }
  50% {
    transform: rotate(-14deg) translateY(-10px);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.85;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

/* ---------- Sections ---------- */

.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5rem) var(--space);
}

.section-head {
  margin-bottom: 1.75rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.2rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-navy);
}

.section-head p {
  margin-top: 0.45rem;
  color: var(--color-muted);
  max-width: 32rem;
}

/* ---------- Products ---------- */

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.product-card {
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--color-white);
  border: 1px solid rgba(11, 31, 58, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(11, 31, 58, 0.12);
}

.product-card-link {
  color: inherit;
}

.product-media,
.product-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(145deg, #102848 0%, #0b1f3a 55%, #173a66 100%);
  overflow: hidden;
}

.product-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}

.product-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 1;
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.22), transparent 40%),
    linear-gradient(145deg, #102848 0%, #0b1f3a 55%, #173a66 100%);
}

.product-placeholder[data-tone="2"] {
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.2), transparent 40%),
    linear-gradient(145deg, #0e2748, #12345c 60%, #1c4a78);
}

.product-placeholder[data-tone="3"] {
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.2), transparent 40%),
    linear-gradient(145deg, #0a1a30, #0f2b4d 55%, #18406c);
}

.product-placeholder[data-tone="4"] {
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.2), transparent 40%),
    linear-gradient(145deg, #132f52, #0b1f3a 50%, #215589);
}

.product-placeholder[data-tone="5"] {
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.2), transparent 40%),
    linear-gradient(145deg, #0c203b, #16375f 58%, #0b1f3a);
}

.product-placeholder[data-tone="6"] {
  background:
    radial-gradient(circle at 70% 20%, rgba(198, 162, 74, 0.2), transparent 40%),
    linear-gradient(145deg, #10233f, #1a3f6d 52%, #0d2748);
}

.product-placeholder-brand {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.product-placeholder-label {
  position: absolute;
  right: 0.9rem;
  bottom: 0.85rem;
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  color: var(--color-gold-bright);
  font-size: 0.85rem;
}

.product-placeholder-boot {
  width: 48%;
  height: 38%;
  border-radius: 40% 60% 48% 52%;
  background:
    linear-gradient(135deg, rgba(223, 189, 99, 0.8), rgba(255, 255, 255, 0.16) 40%, rgba(6, 20, 39, 0.55));
  transform: rotate(-22deg);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.product-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 1;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(6, 20, 39, 0.72);
  color: var(--color-gold-bright);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.product-body {
  display: grid;
  gap: 0.55rem;
  padding: 1.1rem 1.15rem 1.25rem;
}

.product-brand {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
}

.product-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.35;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.product-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-green);
  font-weight: 500;
}

.product-status::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 3px var(--color-green-soft);
}

.product-status-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.3;
}

.status-available {
  color: var(--color-green);
  background: var(--color-green-soft);
}

.status-reserved {
  color: var(--color-yellow);
  background: var(--color-yellow-soft);
}

.status-sold {
  color: var(--color-red);
  background: var(--color-red-soft);
}

.product-price {
  margin-top: 0.25rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--color-navy);
}

.btn-navy {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-navy:hover,
.btn-navy:focus-visible {
  background: var(--color-navy-soft);
}

.section-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.75rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  margin: 0 0 0.45rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  font-weight: 500;
}

.page-hero {
  background:
    linear-gradient(160deg, rgba(11, 31, 58, 0.96), rgba(20, 48, 86, 0.92)),
    linear-gradient(135deg, var(--color-navy-deep), var(--color-navy-soft));
  color: var(--color-white);
}

.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(2.5rem, 8vw, 4rem) var(--space);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3rem);
  letter-spacing: 0.06em;
}

.page-hero p {
  margin-top: 0.55rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 34rem;
}

.page-hero .eyebrow {
  color: var(--color-gold-bright);
}

.products-count {
  display: inline-flex;
  margin-top: 1rem !important;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(198, 162, 74, 0.45);
  border-radius: 999px;
  color: var(--color-gold-bright) !important;
  font-size: 0.88rem;
}

.section-products {
  padding-top: 2rem;
}

/* ---------- Search & Filter (STEP 3) ---------- */

.catalog-toolbar {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.search-field {
  display: grid;
  gap: 0.4rem;
}

.search-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-navy);
}

.search-field input {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
}

.search-field input:focus {
  outline: 2px solid rgba(198, 162, 74, 0.45);
  border-color: var(--color-gold);
}

.filter-toggle {
  width: 100%;
}

.catalog-layout {
  display: grid;
  gap: 1.25rem;
}

.filter-panel {
  display: none;
  padding: 1.15rem;
  border: 1px solid rgba(11, 31, 58, 0.08);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.filter-panel.is-open {
  display: block;
  animation: navDrop 0.28s var(--ease);
}

.filter-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.filter-panel-head h3 {
  font-size: 1.05rem;
  color: var(--color-navy);
}

.btn-text {
  border: 0;
  background: transparent;
  color: var(--color-gold-dark);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.25rem 0;
}

.btn-text:hover,
.btn-text:focus-visible {
  color: var(--color-navy);
}

.filter-group {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 0.95rem;
}

.filter-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-navy);
}

.filter-group select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.filter-group select:focus {
  outline: 2px solid rgba(198, 162, 74, 0.45);
  border-color: var(--color-gold);
}

.filter-reset-btn {
  width: 100%;
  margin-top: 0.35rem;
}

.catalog-results {
  min-width: 0;
}

.products-empty {
  display: grid;
  gap: 0.65rem;
  justify-items: start;
  padding: 2rem 1.25rem;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #fbfcfe, #ffffff);
}

.products-empty[hidden] {
  display: none !important;
}

.products-empty h3 {
  color: var(--color-navy);
  font-size: 1.2rem;
}

.products-empty p {
  color: var(--color-muted);
}

.products-empty .btn {
  margin-top: 0.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-navy);
}

.detail-layout {
  display: grid;
  gap: 1.75rem;
}

.detail-gallery {
  display: grid;
  gap: 0.85rem;
}

.gallery-main,
.gallery-media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(11, 31, 58, 0.08);
  background: var(--color-navy);
}

.gallery-media {
  width: 100%;
  height: 100%;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(4.5rem, 1fr));
  gap: 0.65rem;
  max-width: 100%;
}

.gallery-thumb {
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: transparent;
  cursor: pointer;
}

.gallery-thumb.is-active,
.gallery-thumb:hover,
.gallery-thumb:focus-visible {
  border-color: var(--color-gold);
}

.gallery-thumb-media {
  aspect-ratio: 4 / 3;
  display: block;
}

.detail-info .product-brand {
  margin-bottom: 0;
}

.detail-header {
  display: grid;
  gap: 0.45rem;
}

.detail-id {
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--color-muted);
}

.detail-title {
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.3;
  color: var(--color-navy);
  font-weight: 600;
}

.detail-subheader {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  align-items: baseline;
}

.detail-model {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.detail-info .product-status-badge {
  margin-top: 0.55rem;
}

.detail-price {
  margin-top: 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.6rem);
  color: var(--color-navy);
  letter-spacing: 0.03em;
  line-height: 1.1;
}

.detail-specs {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
}

.detail-specs > div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-line);
}

.detail-specs dt {
  color: var(--color-muted);
  font-weight: 400;
}

.detail-specs dd {
  margin: 0;
  color: var(--color-navy);
  font-weight: 500;
}

.detail-condition {
  margin-top: 1.5rem;
  padding: 1.2rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(198, 162, 74, 0.35);
  background:
    linear-gradient(135deg, rgba(198, 162, 74, 0.14), rgba(255, 255, 255, 0.9) 55%),
    var(--color-white);
}

.detail-condition h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--color-navy);
}

.detail-condition-score {
  margin-top: 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.1rem);
  color: var(--color-navy);
  letter-spacing: 0.03em;
}

.detail-condition-note {
  margin-top: 0.25rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.detail-condition-future {
  margin-top: 0.9rem;
  padding-top: 0.75rem;
  border-top: 1px dashed rgba(11, 31, 58, 0.15);
  color: rgba(91, 103, 119, 0.75);
  font-size: 0.82rem;
}

.detail-defects {
  margin-top: 1.15rem;
  padding: 1.15rem 1.15rem 1.2rem;
  border-radius: var(--radius-md);
  border-left: 4px solid #c47b14;
  background: linear-gradient(90deg, #fff8e8, #ffffff 55%);
}

.detail-defects.has-defects {
  border-left-color: #b42318;
  background: linear-gradient(90deg, #fdeceb, #ffffff 60%);
}

.detail-defects.no-defects {
  border-left-color: #1f8a4c;
  background: linear-gradient(90deg, #e8f6ee, #ffffff 60%);
}

.detail-defects h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--color-navy);
}

.detail-defects p {
  margin-top: 0.5rem;
  color: var(--color-text);
  font-weight: 500;
}

.detail-block {
  margin-top: 1.5rem;
}

.detail-block h2 {
  font-size: 1.05rem;
  color: var(--color-navy);
  margin-bottom: 0.45rem;
}

.detail-block p {
  color: var(--color-muted);
}

.detail-meta {
  margin-top: 1.5rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--color-line);
}

.detail-meta h2 {
  font-size: 1.05rem;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.detail-meta dl {
  display: grid;
  gap: 0.65rem;
  margin: 0;
}

.detail-meta dl > div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.75rem;
}

.detail-meta dt {
  color: var(--color-muted);
  font-weight: 400;
}

.detail-meta dd {
  margin: 0;
  color: var(--color-navy);
  font-weight: 500;
}

.detail-back-btn,
.detail-info .btn {
  margin-top: 1.75rem;
}

.product-not-found {
  max-width: 32rem;
  padding: 1rem 0 2rem;
}

.product-not-found h1 {
  margin: 0.35rem 0 0.75rem;
  color: var(--color-navy);
}

.product-not-found p {
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.product-not-found .btn {
  margin-top: 1.25rem;
}

.product-detail-section {
  overflow-x: clip;
}

/* ---------- Brands / Sizes ---------- */

.brand-grid,
.size-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.brand-chip,
.size-chip {
  display: grid;
  place-items: center;
  min-height: 4.25rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-navy);
  font-weight: 500;
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s var(--ease);
}

.brand-chip:hover,
.brand-chip:focus-visible,
.size-chip:hover,
.size-chip:focus-visible {
  border-color: var(--color-gold);
  background: linear-gradient(180deg, #fffdf7, #ffffff);
  transform: translateY(-2px);
}

.brand-chip span,
.size-chip span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-muted);
}

/* ---------- Features ---------- */

.feature-list {
  display: grid;
  gap: 1rem;
}

.feature-item {
  padding: 1.35rem 1.25rem;
  border-left: 3px solid var(--color-gold);
  background: linear-gradient(90deg, rgba(198, 162, 74, 0.08), transparent 55%);
}

.feature-icon {
  display: block;
  width: 2rem;
  height: 0.28rem;
  margin-bottom: 0.85rem;
  background: linear-gradient(90deg, var(--color-navy), var(--color-gold));
}

.feature-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-navy);
}

.feature-item p {
  margin-top: 0.4rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* ---------- Footer ---------- */

.site-footer {
  margin-top: 1rem;
  background: var(--color-navy-deep);
  color: rgba(255, 255, 255, 0.82);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem var(--space) 2rem;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-white);
}

.footer-store {
  margin-top: 0.25rem;
  color: var(--color-gold-bright);
}

.footer-slogan {
  margin-top: 0.55rem;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.65);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  margin: 1.5rem 0;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-gold-bright);
}

.footer-copy {
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.product-cart-action {
  margin-top: 1.5rem;
}

.detail-cart-btn {
  width: 100%;
  max-width: 20rem;
}

/* ---------- Cart & Checkout (STEP 6) ---------- */

.cart-section {
  overflow-x: clip;
}

.cart-layout,
.checkout-layout {
  display: grid;
  gap: 1.25rem;
}

.cart-list-panel h1,
.checkout-form-panel h1,
.order-success h1 {
  margin: 0 0 0.35rem;
  color: var(--color-navy);
}

.cart-items {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.85rem;
  padding: 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.cart-item.compact {
  grid-template-columns: 4.5rem 1fr;
}

.cart-item.is-unavailable {
  border-color: rgba(180, 35, 24, 0.35);
  background: #fff8f7;
}

.cart-media {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.cart-item-body h2,
.cart-item-body h3 {
  margin: 0.15rem 0;
  font-size: 1rem;
  color: var(--color-navy);
}

.cart-item-price {
  margin: 0.35rem 0;
  font-weight: 600;
  color: var(--color-navy);
}

.cart-item-warn {
  margin: 0.25rem 0 0.5rem;
  color: var(--color-red);
  font-weight: 500;
}

.cart-summary-panel,
.checkout-summary-panel {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(11, 31, 58, 0.08);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
  height: fit-content;
}

.cart-totals {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0;
}

.cart-totals > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.cart-totals dt {
  color: var(--color-muted);
}

.cart-totals dd {
  margin: 0;
  font-weight: 500;
  color: var(--color-navy);
}

.cart-total-row {
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-line);
  font-size: 1.05rem;
}

.cart-empty,
.checkout-blocked,
.order-success {
  max-width: 40rem;
}

.cart-empty h1,
.checkout-blocked h1 {
  color: var(--color-navy);
}

.cart-warnings,
.checkout-blocked {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-yellow-soft);
  color: #7a5a00;
  margin: 0.85rem 0 1rem;
}

.checkout-blocked {
  background: var(--color-red-soft);
  color: var(--color-red);
}

.cart-block-msg {
  color: var(--color-red);
  font-weight: 500;
}

.checkout-form-panel {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid rgba(11, 31, 58, 0.08);
  box-shadow: var(--shadow-soft);
}

.checkout-form-panel form {
  display: grid;
  gap: 0.9rem;
  margin-top: 1rem;
}

.checkout-form-panel label {
  display: grid;
  gap: 0.35rem;
}

.checkout-form-panel label span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-navy);
}

.checkout-form-panel input,
.checkout-form-panel textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
}

.order-id-line {
  font-size: 1.1rem;
  margin: 0.75rem 0;
}

.cart-toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 1200;
  max-width: min(92vw, 24rem);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-navy);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.cart-toast.error {
  background: var(--color-red);
}

.cart-toast[hidden] {
  display: none !important;
}

/* ---------- Payment (STEP 7) ---------- */

.payment-layout {
  display: grid;
  gap: 1.25rem;
}

.payment-summary-panel,
.payment-form-panel {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid rgba(11, 31, 58, 0.08);
  box-shadow: var(--shadow-soft);
}

.payment-summary-panel h1,
.payment-form-panel h2,
.payment-success-state h1 {
  margin: 0 0 0.5rem;
  color: var(--color-navy);
}

.payment-method-cards {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.15rem;
}

.payment-info-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(11, 31, 58, 0.2);
  background: #f8fafc;
}

.payment-info-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-navy);
}

.payment-info-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.payment-qr-placeholder {
  width: min(100%, 12rem);
  aspect-ratio: 1;
  margin: 0.5rem 0 0.75rem;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, rgba(198, 162, 74, 0.2), transparent 45%),
    repeating-linear-gradient(
      45deg,
      rgba(11, 31, 58, 0.08) 0 8px,
      rgba(11, 31, 58, 0.02) 8px 16px
    );
  border: 1px solid rgba(11, 31, 58, 0.12);
}

#payment-form {
  display: grid;
  gap: 0.9rem;
}

#payment-form fieldset {
  margin: 0;
  padding: 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

#payment-form legend {
  padding: 0 0.35rem;
  color: var(--color-navy);
  font-weight: 500;
}

.payment-radio {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.45rem;
  font-weight: 400;
}

#payment-form label > span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-navy);
}

#payment-form input[type="text"],
#payment-form input[type="datetime-local"],
#payment-form input[type="file"],
#payment-form textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-white);
}

#payment-form input[readonly] {
  background: #f3f6fa;
  color: var(--color-navy);
  font-weight: 600;
}

.slip-preview-wrap {
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: #f8fafc;
  border: 1px solid var(--color-line);
}

.slip-preview {
  display: block;
  width: 100%;
  max-width: 18rem;
  max-height: 18rem;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: var(--color-white);
}

.payment-success-state {
  max-width: 40rem;
}

.payment-summary-card {
  margin: 1rem 0 1.25rem;
}

/* ---------- Admin (STEP 5) ---------- */

.admin-body {
  background: linear-gradient(180deg, #f4f7fb 0%, #ffffff 40%);
  overflow-x: clip;
}

.admin-shell {
  min-height: 100vh;
}

.admin-sidebar {
  display: none;
  background: var(--color-navy-deep);
  color: rgba(255, 255, 255, 0.86);
  padding: 1.25rem;
}

.admin-sidebar.is-open {
  display: block;
}

.admin-brand {
  margin-bottom: 1.25rem;
}

.admin-brand .brand-name,
.admin-brand .brand-tagline {
  color: var(--color-white);
}

.admin-brand .brand-tagline {
  color: var(--color-gold-bright);
}

.admin-nav-list {
  display: grid;
  gap: 0.35rem;
}

.admin-nav-list a {
  display: block;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.86);
}

.admin-nav-list a:hover,
.admin-nav-list a:focus-visible,
.admin-nav-list a[aria-current="page"] {
  background: rgba(198, 162, 74, 0.18);
  color: var(--color-gold-bright);
}

.admin-topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--space);
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
  background: rgba(255, 255, 255, 0.94);
}

.admin-topbar h1 {
  margin: 0;
  color: var(--color-navy);
  font-size: 1.45rem;
}

.admin-content {
  padding: 1.25rem var(--space) 2.5rem;
}

.admin-banner,
.admin-flash {
  margin: 0 0 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  background: #eef3f9;
  color: var(--color-navy);
  font-size: 0.92rem;
}

.admin-flash.info {
  background: #eef3f9;
}

.admin-flash.error {
  background: var(--color-red-soft);
  color: var(--color-red);
}

.admin-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.admin-stat-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid rgba(11, 31, 58, 0.08);
  box-shadow: var(--shadow-soft);
}

.admin-stat-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.admin-stat-card strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-navy);
}

.admin-stat-card.status-available strong { color: var(--color-green); }
.admin-stat-card.status-reserved strong { color: var(--color-yellow); }
.admin-stat-card.status-sold strong { color: var(--color-red); }

.admin-panel {
  padding: 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid rgba(11, 31, 58, 0.08);
  box-shadow: var(--shadow-soft);
}

.admin-panel-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.admin-panel-head h2 {
  margin: 0;
  color: var(--color-navy);
  font-size: 1.15rem;
}

.admin-panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.admin-latest-grid,
.admin-products-cards {
  display: grid;
  gap: 0.85rem;
}

.admin-latest-card,
.admin-product-card {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.85rem;
  padding: 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: #fbfcfe;
}

.admin-latest-card h3,
.admin-product-card h3 {
  margin: 0.15rem 0;
  font-size: 0.98rem;
  color: var(--color-navy);
}

.admin-latest-id {
  margin: 0;
  font-size: 0.78rem;
  color: var(--color-muted);
}

.admin-latest-price {
  margin: 0.35rem 0 0;
  font-weight: 600;
  color: var(--color-navy);
}

.admin-thumb,
.admin-preview-item {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.admin-table-wrap {
  display: none;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 56rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: middle;
  font-size: 0.9rem;
}

.admin-table th {
  background: #f3f6fa;
  color: var(--color-navy);
  font-weight: 500;
}

.admin-table .admin-thumb {
  width: 3.75rem;
}

.admin-actions-cell,
.admin-card-actions {
  display: grid;
  gap: 0.5rem;
}

.admin-status-control {
  display: grid;
  gap: 0.25rem;
  font-size: 0.82rem;
  color: var(--color-muted);
}

.admin-status-control select,
.admin-form-grid input,
.admin-form-grid select,
.admin-full textarea,
.admin-full input {
  width: 100%;
  min-height: 2.6rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-text);
}

.btn-small {
  min-height: 2.4rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
}

.admin-form-grid {
  display: grid;
  gap: 0.9rem;
}

.admin-form-grid label,
.admin-full {
  display: grid;
  gap: 0.35rem;
}

.admin-form-grid label span,
.admin-full span {
  font-size: 0.88rem;
  color: var(--color-navy);
  font-weight: 500;
}

.admin-full {
  margin-top: 0.9rem;
}

.admin-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.admin-form-errors {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-red-soft);
  color: var(--color-red);
}

.admin-form-errors ul {
  margin: 0.45rem 0 0;
  padding-left: 1.1rem;
}

.admin-help {
  margin: 0.25rem 0 0;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.admin-image-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 0.75rem;
  margin-top: 0.65rem;
}

.admin-preview-item {
  position: relative;
  aspect-ratio: 4 / 3;
}

.admin-preview-item p {
  margin: 0.35rem 0 0;
  font-size: 0.75rem;
  color: var(--color-muted);
  word-break: break-all;
}

.admin-empty {
  color: var(--color-muted);
}

.catalog-state {
  padding: 2rem 1.25rem;
  text-align: center;
  background: linear-gradient(160deg, rgba(11, 31, 58, 0.04), rgba(198, 162, 74, 0.08));
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.catalog-state h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  color: var(--color-navy);
}

.catalog-state p {
  margin: 0 0 1rem;
  color: var(--color-muted);
}

.payment-qr-inactive {
  padding: 0.75rem;
  background: var(--color-off-white);
  border: 1px dashed var(--color-line);
  color: var(--color-muted);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}