/* ============================================
   GlowBeauty — Modern Minimal Korean Skincare
   Dark theme + Rose Gold accents
   ============================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1C1C1C;
  --text-primary: #F5F0EB;
  --text-secondary: #9A9A9A;
  --text-muted: #666666;
  --accent: #D4A574;
  --accent-light: #E8C9A8;
  --accent-dim: #D4A57433;
  --border: #222222;
  --border-light: #2A2A2A;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
img { max-width: 100%; display: block; }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn--primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--full { width: 100%; }

/* HEADER */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: var(--transition);
}

.header--scrolled {
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.header__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.header__logo span {
  color: var(--accent);
}

.header__nav {
  display: flex;
  gap: 36px;
}

.header__nav-link {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: var(--transition);
}
.header__nav-link:hover {
  color: var(--text-primary);
}
.header__nav-link:hover::after {
  width: 100%;
}

.header__cart-btn {
  position: relative;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 8px;
  transition: var(--transition);
}
.header__cart-btn:hover { color: var(--accent); }

.header__cart-count {
  position: absolute;
  top: 0;
  right: -2px;
  background: var(--accent);
  color: var(--bg-primary);
  font-size: 10px;
  font-weight: 600;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0);
  transition: var(--transition);
}
.header__cart-count:not(:empty):not([textContent="0"]) {
  opacity: 1;
  transform: scale(1);
}

.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.header__menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: var(--transition);
}
.header__menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.header__menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.header__menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.mobile-nav--open {
  opacity: 1;
  pointer-events: all;
}
.mobile-nav__link {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.mobile-nav__link:hover {
  color: var(--accent);
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(212, 165, 116, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(212, 165, 116, 0.04) 0%, transparent 50%),
    var(--bg-primary);
}
.hero__bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--bg-primary), transparent);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 140px 40px 80px;
}

.hero__badge {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero__title--accent {
  color: var(--accent);
}

.hero__subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
}

.hero__trust {
  display: flex;
  gap: 32px;
}
.hero__trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
}
.hero__trust-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* SECTION HEADERS */
.section__header {
  text-align: center;
  margin-bottom: 48px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section__subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.accent { color: var(--accent); }

/* SHOP / PRODUCT GRID */
.shop {
  max-width: 1280px;
  margin: 0 auto;
  padding: 100px 40px;
}

.shop__filters {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.shop__filter {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 400;
  transition: var(--transition);
}
.shop__filter:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}
.shop__filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
  font-weight: 500;
}

.shop__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

/* Product Card */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.product-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.product-card__image {
  position: relative;
  aspect-ratio: 1;
  background: var(--bg-secondary);
  overflow: hidden;
}
.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card__image img {
  transform: scale(1.05);
}

.product-card__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
}
.product-card__image--placeholder .product-card__placeholder {
  opacity: 1;
}

.product-card__info {
  padding: 20px;
}

.product-card__brand {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 6px;
}

.product-card__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
  line-height: 1.3;
}

.product-card__desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-card__price {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.product-card__add {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}
.product-card__add:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

/* ABOUT */
.about {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 100px 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 20px;
  line-height: 1.7;
}

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

.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
}
.about__card:first-child {
  grid-column: 1 / -1;
}

.about__card-number {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.about__card-label {
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* FAQ */
.faq {
  max-width: 720px;
  margin: 0 auto;
  padding: 100px 40px;
}

.faq__list {
  display: flex;
  flex-direction: column;
}

.faq__item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 8px;
  transition: var(--transition);
}
.faq__item:hover {
  border-color: var(--border-light);
}

.faq__question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  text-align: left;
}
.faq__question svg {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq__item--open .faq__answer {
  max-height: 300px;
}
.faq__item--open .faq__question svg {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq__answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* CONTACT */
.contact {
  border-top: 1px solid var(--border);
}

.contact__inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 100px 40px;
  text-align: center;
}

.contact__methods {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
}

.contact__method {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}
.contact__method:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.footer__tagline {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.6;
}

.footer__payments {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.footer__payment-badge {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.footer__links {
  display: flex;
  gap: 32px;
}
.footer__links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer__links a:hover { color: var(--accent); }

.footer__bottom {
  border-top: 1px solid var(--border);
  padding: 20px 40px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* CART DRAWER */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.cart-overlay--open {
  opacity: 1;
  pointer-events: all;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 100vw;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.cart-drawer--open {
  transform: translateX(0);
}

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.cart-drawer__header h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

.cart-drawer__close {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 4px;
  transition: var(--transition);
}
.cart-drawer__close:hover { color: var(--text-primary); }

.cart-drawer__items {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
}

.cart-drawer__empty {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  padding: 60px 0;
}

.cart-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.cart-item:last-child { border-bottom: none; }

.cart-item__image {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  overflow: hidden;
  flex-shrink: 0;
}
.cart-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item__info {
  flex: 1;
  min-width: 0;
}

.cart-item__brand {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 2px;
}

.cart-item__name {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item__price {
  font-size: 14px;
  font-weight: 600;
}

.cart-item__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.qty-control {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.qty-btn {
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: var(--transition);
}
.qty-btn:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.qty-value {
  font-size: 13px;
  font-weight: 500;
  min-width: 20px;
  text-align: center;
}

.cart-item__remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  transition: var(--transition);
}
.cart-item__remove:hover { color: #e74c3c; }

.cart-drawer__footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
}

.cart-drawer__total {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* CHECKOUT MODAL */
.checkout-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.checkout-overlay--open {
  opacity: 1;
  pointer-events: all;
}

.checkout-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  z-index: 301;
  overflow-y: auto;
  padding: 36px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.checkout-modal--open {
  opacity: 1;
  pointer-events: all;
  transform: translate(-50%, -50%) scale(1);
}

.checkout-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 4px;
  transition: var(--transition);
}
.checkout-modal__close:hover { color: var(--text-primary); }

.checkout-modal__title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 28px;
}

.checkout-form__section {
  margin-bottom: 28px;
}
.checkout-form__section h4 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.checkout-form input[type="text"],
.checkout-form input[type="email"],
.checkout-form input[type="tel"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  margin-bottom: 10px;
  transition: var(--transition);
  outline: none;
}
.checkout-form input:focus {
  border-color: var(--accent);
}

.checkout-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* Payment Options */
.payment-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.payment-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}
.payment-option:hover {
  border-color: var(--border-light);
}
.payment-option:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.payment-option input[type="radio"] {
  accent-color: var(--accent);
}

.payment-option__label {
  font-size: 14px;
  font-weight: 500;
  flex: 1;
}

.payment-option__handle {
  font-size: 12px;
  color: var(--text-muted);
  font-family: monospace;
}

.checkout-form__note {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.checkout-form__note svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

/* Checkout Summary */
.checkout-summary {
  margin-bottom: 12px;
}

.checkout-line {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.checkout-line:last-child { border-bottom: none; }

.checkout-summary__total {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-top: 1px solid var(--border-light);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

/* Checkout Success */
.checkout-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 40px 0;
  text-align: center;
}
.checkout-success h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--accent);
}
.checkout-success p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 400px;
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: var(--bg-primary);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  z-index: 500;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}
.toast--show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .header__nav { display: none; }
  .header__menu-btn { display: flex; }
  .hero__content { padding: 120px 24px 60px; }
  .hero__trust { flex-direction: column; gap: 16px; }
  .about__inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 60px 24px;
  }
  .footer__inner {
    flex-direction: column;
    gap: 32px;
    padding: 40px 24px;
  }
  .shop { padding: 60px 24px; }
  .faq { padding: 60px 24px; }
  .contact__inner { padding: 60px 24px; }
}

@media (max-width: 600px) {
  .shop__grid {
    grid-template-columns: 1fr;
  }
  .hero__actions {
    flex-direction: column;
  }
  .contact__methods {
    flex-direction: column;
    align-items: center;
  }
  .checkout-modal {
    padding: 24px;
  }
  .checkout-form__row {
    grid-template-columns: 1fr;
  }
}