/* ============================================
   ktradehub - Global Cosmetics Trade Platform
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #F7FAFC;
  --color-bg-dark: #7ba7d4;
  --color-text: #2A3A4A;
  --color-text-light: #5E7181;
  --color-text-muted: #8A9BAA;
  --color-accent: #afcbea;
  --color-accent-dark: #7ba7d4;
  --color-border: #D4E2EE;
  --color-white: #ffffff;
  --color-black: #2A3A4A;

  --font-primary: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Montserrat', 'Pretendard', sans-serif;

  --max-width: 1200px;
  --header-height: 108px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);

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

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg: #141820;
  --color-bg-alt: #1a2030;
  --color-bg-dark: #4a7aaa;
  --color-text: #ffffff;
  --color-text-light: #cccccc;
  --color-text-muted: #999999;
  --color-accent: #7ba7d4;
  --color-accent-dark: #9bbde0;
  --color-border: #2a3444;
  --color-white: #1e2530;
  --color-black: #d8dde4;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .hero,
[data-theme="dark"] .page-hero {
  background: linear-gradient(135deg, #141820 0%, #1a2535 50%, #182030 100%);
}

[data-theme="dark"] .cta-section,
[data-theme="dark"] .section--dark {
  background: linear-gradient(135deg, #0e1218 0%, #141e2a 100%);
}

[data-theme="dark"] .hero__bg::after {
  background: radial-gradient(circle, rgba(123, 167, 212, 0.12) 0%, transparent 70%);
}


[data-theme="dark"] .section--gray {
  background: var(--color-bg-alt);
}

[data-theme="dark"] .header,
[data-theme="dark"] .header--scrolled {
  background: rgba(14, 18, 26, 0.95);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
  color: var(--color-text);
}

[data-theme="dark"] .header__nav a {
  color: var(--color-text);
}

[data-theme="dark"] .header__cta {
  background: var(--color-accent) !important;
  color: #fff !important;
}

[data-theme="dark"] .header__nav {
  background: #0e121a;
}

[data-theme="dark"] .card {
  background: var(--color-white);
  border-color: var(--color-border);
}

[data-theme="dark"] .footer {
  background: #0e1218;
  border-top-color: var(--color-border);
}

[data-theme="dark"] .product-card {
  background: var(--color-white);
  border-color: var(--color-border);
}

[data-theme="dark"] .form__input,
[data-theme="dark"] .form__select,
[data-theme="dark"] .form__textarea {
  background: #1a2030;
  border-color: var(--color-border);
  color: var(--color-text);
}

[data-theme="dark"] .highlight-box {
  background: #1a2535;
  border-color: var(--color-border);
}


[data-theme="dark"] img {
  opacity: 0.92;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-accent-dark);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }

[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root .theme-toggle .icon-moon { display: block; }
:root .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--color-text-light);
  max-width: 680px;
}

.text-center { text-align: center; }
.text-center p { margin-left: auto; margin-right: auto; }

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section--gray {
  background: var(--color-bg-alt);
}

.section--dark {
  background: linear-gradient(135deg, #EDF4FA 0%, #dce9f4 100%);
  color: var(--color-text);
}

.section--dark p {
  color: var(--color-text-light);
}

.section__label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
}

.section__title {
  margin-bottom: 20px;
}

.section__desc {
  margin-bottom: 48px;
  font-size: 1.1rem;
}

/* --- Grid --- */
.grid {
  display: grid;
  gap: 32px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.header__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.header__logo span {
  color: var(--color-accent-dark);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header__nav a {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  color: var(--color-text-light);
  transition: var(--transition);
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--color-accent-dark);
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-dark);
  transition: var(--transition);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

/* --- Nav Dropdown (Shop submenu) --- */
.nav-dropdown {
  position: relative;
}
.nav-dropdown > a {
  cursor: pointer;
}
.nav-dropdown__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: 8px 0;
  z-index: 100;
}
.nav-dropdown:hover .nav-dropdown__menu {
  display: block;
}
.nav-dropdown__menu a {
  display: block;
  padding: 10px 20px !important;
  font-size: 0.85rem !important;
  white-space: nowrap;
  color: var(--color-text) !important;
}
.nav-dropdown__menu a:hover {
  background: var(--color-bg-alt);
  color: var(--color-accent-dark) !important;
}
.nav-dropdown__menu a::after {
  display: none !important;
}
[data-theme="dark"] .nav-dropdown__menu {
  background: var(--color-bg);
  border-color: var(--color-border);
}

@media (max-width: 900px) {
  .nav-dropdown__menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    margin-top: 0;
    padding: 0 0 0 16px;
    display: block;
    background: transparent;
  }
  .nav-dropdown__menu a {
    padding: 6px 0 !important;
    font-size: 0.85rem !important;
  }
}

.header__cta {
  background: var(--color-accent-dark) !important;
  color: var(--color-white) !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600;
  font-size: 0.9rem !important;
}

.header__cta:hover {
  background: #6893be !important;
  transform: translateY(-1px);
}

.header__cta::after {
  display: none !important;
}

/* Mobile Menu Toggle */
.header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.header__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* Mobile nav rules moved to consolidated block above */

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #EDF4FA 0%, #dce9f4 50%, #e8eef6 100%);
  color: var(--color-text);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: transparent;
}

.hero__bg::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(175, 203, 234, 0.3) 0%, transparent 70%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent-dark);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent-dark);
}

.hero__desc {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 560px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn--primary {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

.btn--primary:hover {
  background: #6893be;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-accent-dark);
  color: var(--color-accent-dark);
}

.btn--outline:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

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

.btn--dark:hover {
  background: #6893be;
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Cards --- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.card__icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card__icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-accent-dark);
  stroke-width: 1.5;
  fill: none;
}

.card__title {
  margin-bottom: 12px;
}

.card__text {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.card__link {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card__link:hover {
  gap: 12px;
}

/* --- Channel Card (Sell page) --- */
.channel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  transition: var(--transition);
}

.channel:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.channel__number {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: 16px;
}

.channel__title {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.channel__desc {
  margin-bottom: 24px;
}

.channel__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.channel__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.channel__list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-dark);
  flex-shrink: 0;
}

/* --- Stats --- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stats__item h3 {
  font-size: 2.5rem;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}

.stats__item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin: 0 auto;
}

@media (max-width: 768px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Process / Timeline --- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process__step {
  position: relative;
  padding: 32px 24px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  counter-increment: step;
}

.process__step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.4;
  display: block;
  margin-bottom: 16px;
}

.process__step h4 {
  margin-bottom: 8px;
}

.process__step p {
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .process {
    grid-template-columns: 1fr;
  }
}

/* --- CTA Section --- */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section p {
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.85);
}

/* --- Form --- */
.form {
  max-width: 640px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: 24px;
}

.form__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-accent-dark);
  box-shadow: 0 0 0 3px rgba(175, 203, 234, 0.3);
}

.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 768px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

/* --- Feature List --- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.feature-list__item {
  display: flex;
  gap: 16px;
}

.feature-list__icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-list__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-accent-dark);
  stroke-width: 1.5;
  fill: none;
}

.feature-list__content h4 {
  margin-bottom: 6px;
  font-size: 1.1rem;
}

.feature-list__content p {
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .feature-list {
    grid-template-columns: 1fr;
  }
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 16px;
}

.footer__brand span {
  color: var(--color-accent-dark);
}

.footer__desc {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer__links a:hover {
  color: var(--color-accent-dark);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* --- Page Hero (Inner pages) --- */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(135deg, #EDF4FA 0%, #dce9f4 100%);
  color: var(--color-text);
  text-align: center;
}

.page-hero__label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent-dark);
  margin-bottom: 16px;
}

.page-hero__title {
  margin-bottom: 20px;
}

.page-hero__desc {
  font-size: 1.15rem;
  color: var(--color-text-light);
  margin: 0 auto;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Highlight Box --- */
.highlight-box {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  color: var(--color-white);
  text-align: center;
}

.highlight-box h2 {
  margin-bottom: 16px;
}

.highlight-box p {
  color: rgba(255, 255, 255, 0.9);
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

/* --- Language Dropdown --- */
.lang-dropdown {
  position: relative;
  margin-left: 8px;
}

.lang-dropdown__btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: inherit;
  transition: var(--transition);
}

.lang-dropdown__btn:hover {
  border-color: var(--color-accent-dark);
}

.lang-dropdown__chevron {
  transition: transform 0.2s;
}

.lang-dropdown.open .lang-dropdown__chevron {
  transform: rotate(180deg);
}

.lang-dropdown__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 100px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
}

.lang-dropdown.open .lang-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown__item {
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
}

.lang-dropdown__item:hover {
  background: var(--color-bg-alt);
}

.lang-dropdown__item.active {
  color: var(--color-accent-dark);
  font-weight: 700;
}

/* Desktop: nav__extras hidden, desktop-extras shown */
.nav__extras { display: none; }
.header__desktop-extras { display: flex; align-items: center; gap: 12px; }

@media (max-width: 768px) {
  /* Hide desktop-only lang/theme, show inside hamburger */
  .header__desktop-extras { display: none !important; }
  .nav__extras {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 24px;
    margin-top: auto;
    border-top: 1px solid var(--color-border, #e0e0e0);
  }

  /* Hamburger menu: full-width overlay pinned to top */
  .header__nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: #ffffff;
    flex-direction: column;
    justify-content: flex-start;
    padding: 80px 24px 32px 24px;
    gap: 20px;
    z-index: 99999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .header__nav.open {
    display: flex;
  }

  .header__nav a {
    font-size: 1.2rem;
  }

  /* Header bar: logo + sign in + hamburger only */
  .header__inner {
    padding: 0 16px;
  }
  .header__actions {
    margin-left: auto;
    gap: 8px;
  }
  .header__cta {
    padding: 8px 16px !important;
    font-size: 0.85rem !important;
  }
  .header__toggle {
    display: flex;
    position: relative;
    z-index: 100000;
  }

  /* Mobile body margins */
  .container, .section__inner {
    padding-left: 16px;
    padding-right: 16px;
  }
}
@media (max-width: 768px) {
  [data-theme="dark"] .header__nav { background: #0e121a; }
}
[data-theme="dark"] .nav__extras { border-top-color: #333; }

/* --- Utility --- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* --- Header Actions (B2B) --- */
.header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 16px;
}

.header__icon-link {
  position: relative;
  display: flex;
  align-items: center;
  color: var(--color-text);
}

.header__icon-link:hover {
  color: var(--color-accent-dark);
}

.header__badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--color-accent-dark);
  color: var(--color-white);
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Shop Filters --- */
.shop-filters {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.shop-filters__search {
  display: flex;
  gap: 8px;
}

/* --- Shop Tabs --- */
.shop-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.shop-tabs__item {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.shop-tabs__item:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.shop-tabs__item.active {
  color: var(--color-white);
  background: var(--color-accent-dark);
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

@media (max-width: 1200px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
}

/* --- Product Card --- */
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: block;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.product-card__image {
  position: relative;
  aspect-ratio: 1;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

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

.product-card__placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-bg-alt);
}

.product-card__moq {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
}

.product-card__badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #e53e3e;
  color: var(--color-white);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-card__badge--new {
  background: var(--color-accent-dark);
}

.product-card__badge--ok {
  background: #22c55e;
}

.product-card__badge--low {
  background: #f59e0b;
}

.product-card__badge--out {
  background: #ef4444;
}

.product-card__inquiry {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #3a6fa0;
  color: #ffffff;
  text-align: center;
  padding: 7px 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

[data-theme="dark"] .product-card__inquiry {
  background: #2e5a85;
}

.product-card__info {
  padding: 16px;
}

.product-card__brand {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.product-card__name {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 6px 0 8px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--color-text);
}

.product-card__price {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
}

.product-card__price--old {
  text-decoration: line-through;
  color: var(--color-text-muted);
  font-weight: 400;
  margin-right: 8px;
  font-size: 0.85rem;
}

.product-card__price--sale {
  color: #e53e3e;
  font-weight: 700;
}

/* --- Product Detail --- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .product-detail { grid-template-columns: 1fr; }
}

.product-detail__main-image img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 1;
  object-fit: cover;
}

.product-detail__thumbs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.product-detail__thumb {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition);
}

.product-detail__thumb.active,
.product-detail__thumb:hover {
  border-color: var(--color-accent-dark);
}

.product-detail__brand {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-detail__name {
  font-size: 1.8rem;
  margin: 8px 0;
}

.product-detail__sku {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.product-detail__pricing {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
}

.product-detail__price {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-heading);
}

.product-detail__price--old {
  font-size: 1.2rem;
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.product-detail__discount {
  background: #fee2e2;
  color: #e53e3e;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 700;
}

.product-detail__meta {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
  margin-bottom: 24px;
}

.product-detail__meta-item {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.product-detail__meta-item:last-child {
  margin-bottom: 0;
}

.product-detail__description {
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.product-detail__description h2 {
  margin-bottom: 16px;
}

/* --- Brand Grid --- */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.brand-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  aspect-ratio: 2/1;
  transition: var(--transition);
}

.brand-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.brand-card__logo {
  max-width: 100%;
  max-height: 40px;
  object-fit: contain;
}

.brand-card__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .brand-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- Cart --- */
.cart-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 32px;
}

.cart-table th,
.cart-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.cart-table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.cart-table__product {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-table__img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.cart-table__brand {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  display: block;
}

.cart-table__name {
  font-weight: 600;
  color: var(--color-text);
}

.cart-remove {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.cart-remove:hover {
  color: #e53e3e;
}

.cart-summary {
  max-width: 480px;
  margin-left: auto;
}

.cart-summary__total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.3rem;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination__link {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
}

.pagination__link:hover {
  border-color: var(--color-accent-dark);
  color: var(--color-accent-dark);
}

.pagination__link--active {
  background: var(--color-accent-dark);
  color: var(--color-white);
  border-color: var(--color-accent-dark);
}

/* ============================================
   Mobile UX/UI Fixes
   ============================================ */

/* --- Global text handling --- */
body {
  word-break: keep-all;       /* Korean text: prevent mid-syllable breaks */
  overflow-wrap: break-word;  /* Long English words/URLs: break to avoid overflow */
}

/* --- Table overflow containers --- */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* --- Cart table mobile wrapper --- */
.cart-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 32px;
}

.cart-table-wrap .cart-table {
  margin-bottom: 0;
}

/* ---- Mobile (max-width: 768px) ---- */
@media (max-width: 768px) {

  /* Container padding */
  .container {
    padding: 0 16px;
  }

  /* Section spacing */
  .section {
    padding: 60px 0;
  }

  /* Touch targets: buttons and links at least 44px */
  .btn,
  a.btn,
  .btn--primary,
  .btn--outline,
  .btn--dark {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Prevent iOS auto-zoom on input focus */
  input,
  select,
  textarea,
  .form__input,
  .form__select,
  .form__textarea {
    font-size: 16px !important;
  }

  /* Header actions: bigger touch targets */
  .header__actions {
    gap: 12px;
    margin-left: 8px;
  }

  .header__icon-link {
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Hero: reduce spacing */
  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

  .hero__desc {
    font-size: 1rem;
    margin-bottom: 28px;
  }

  /* Page hero: reduce top padding */
  .page-hero {
    padding: 120px 0 48px;
  }

  /* Product grid: 2 columns at 768px */
  .product-grid {
    gap: 12px;
  }

  .product-card__info {
    padding: 12px;
  }

  .product-card__name {
    font-size: 0.85rem;
  }

  .product-card__price {
    font-size: 0.9rem;
  }

  /* Cart table: scrollable */
  .cart-table {
    min-width: 600px;
  }

  .cart-table th,
  .cart-table td {
    padding: 12px 10px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .cart-table__img {
    width: 48px;
    height: 48px;
  }

  .cart-summary {
    max-width: 100%;
    margin-left: 0;
  }

  /* Shop filters: stack on mobile */
  .shop-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .shop-filters__search {
    width: 100%;
  }

  .shop-filters__search input {
    flex: 1;
  }

  /* Shop tabs: horizontal scroll */
  .shop-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin-bottom: 24px;
    gap: 4px;
  }

  .shop-tabs__item {
    white-space: nowrap;
    flex-shrink: 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* Brand grid: 3 cols on tablet, 2 on small */
  .brand-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .brand-card {
    padding: 16px;
  }

  /* Highlight box: reduce padding */
  .highlight-box {
    padding: 36px 24px;
  }

  /* Pagination: touch-friendly */
  .pagination__link {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
  }

  /* Product detail: stack and reduce spacing */
  .product-detail__name {
    font-size: 1.4rem;
  }

  .product-detail__price {
    font-size: 1.5rem;
  }

  /* Stats grid: ensure it stays 2-col */
  .stats__item h3 {
    font-size: 1.8rem;
  }

  /* Button group: wrap */
  .btn-group {
    width: 100%;
  }

  .btn-group .btn {
    flex: 1;
    text-align: center;
    justify-content: center;
  }

  /* CTA section: reduce padding */
  .cta-section {
    padding: 48px 0;
  }

  /* Footer adjustments */
  .footer {
    padding: 40px 0 24px;
  }

  /* Flash messages: ensure readable */
  .flash {
    font-size: 0.9rem;
    padding: 12px 16px;
    margin: 8px;
    border-radius: var(--radius-sm);
  }

  /* Language dropdown: touch target */
  .lang-dropdown__btn {
    min-height: 36px;
    padding: 6px 10px;
  }

  /* Section desc/label: smaller margins */
  .section__desc {
    margin-bottom: 32px;
    font-size: 1rem;
  }

  /* Channel cards: reduce padding */
  .channel {
    padding: 28px 24px;
  }

  /* Process steps: reduce padding */
  .process__step {
    padding: 24px 20px;
  }
}

/* ---- Small mobile (max-width: 480px) ---- */
@media (max-width: 480px) {

  /* Container: tighter padding */
  .container {
    padding: 0 12px;
  }

  /* Brand grid: 2 columns */
  .brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Font size floor: minimum 14px for body text */
  .card__text,
  .channel__desc p,
  .channel__list li,
  .feature-list__content p,
  .footer__links a,
  .footer__desc {
    font-size: max(0.85rem, 14px);
  }

  /* Cart table cells: smaller */
  .cart-table th,
  .cart-table td {
    padding: 8px 6px;
    font-size: 0.75rem;
  }

  .cart-table__img {
    width: 40px;
    height: 40px;
  }

  /* Hero: more compact */
  .hero {
    padding: 100px 0 40px;
  }

  /* Header inner: tighter */
  .header__inner {
    padding: 0 12px;
  }
}