/* ============================================================
   DX Labs - style.css
   Mobile-first, clean streetwear aesthetic
   ============================================================ */

/* ===== CSS VARIABLES ===== */
:root {
  --color-black:      #111111;
  --color-dark:       #1F1F1F;
  --color-dark-2:     #2A2A2A;
  --color-white:      #FFFFFF;
  --color-light:      #F5F5F5;
  --color-light-2:    #EBEBEB;
  --color-gray:       #888888;
  --color-gray-light: #CCCCCC;
  --color-accent:     #1D4ED8;
  --color-accent-h:   #1A44C2;
  --color-navy:       #0F172A;
  --color-available:  #16A34A;
  --color-preorder:   #D97706;

  --font-base: 'Helvetica Neue', Helvetica, 'Arial', sans-serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;

  --shadow-sm:  0 1px 4px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);

  --transition: 0.2s ease;

  --nav-height: 60px;
  --container:  1120px;
  --section-gap: 72px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  background-color: var(--color-white);
  color: var(--color-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== SECTION SPACING ===== */
.section {
  padding: 64px 0;
}

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

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

/* ===== SECTION HEADER ===== */
.section__header {
  text-align: center;
  margin-bottom: 40px;
}

.section__header--light .section__title {
  color: var(--color-white);
}

.section__header--light .section__desc {
  color: var(--color-gray-light);
}

.section__title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  color: var(--color-black);
}

.section__desc {
  font-size: 0.975rem;
  color: var(--color-gray);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-base);
  border-radius: var(--radius-md);
  letter-spacing: 0.3px;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-accent-h);
  border-color: var(--color-accent-h);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-black);
  border: 2px solid var(--color-black);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background-color: var(--color-black);
  color: var(--color-white);
}

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

.btn--outline:hover,
.btn--outline:focus-visible {
  background-color: var(--color-black);
  color: var(--color-white);
}

.btn--ghost-light {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn--ghost-light:hover,
.btn--ghost-light:focus-visible {
  background-color: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-white);
}

.btn--order {
  padding: 10px 20px;
  font-size: 0.85rem;
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.btn--order:hover,
.btn--order:focus-visible {
  background-color: var(--color-accent-h);
  border-color: var(--color-accent-h);
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-light-2);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.navbar__logo {
  display: flex;
  align-items: center;
}

.navbar__logo-img {
  height: 32px;
  width: auto;
}

.navbar__logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-black);
}

/* Desktop nav */
.navbar__nav {
  display: none;
}

.navbar__list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__link {
  display: block;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-dark);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}

.navbar__link:hover,
.navbar__link:focus-visible {
  color: var(--color-accent);
  background-color: var(--color-light);
}

/* Hamburger */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar__order-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  letter-spacing: 0.2px;
  transition: background-color var(--transition);
  white-space: nowrap;
}

.navbar__order-btn:hover,
.navbar__order-btn:focus-visible {
  background-color: var(--color-accent-h);
}

.navbar__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  border-radius: var(--radius-sm);
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-black);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger active state */
.navbar__hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__hamburger.active .hamburger__line:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.navbar__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.45);
  z-index: -1;
}

/* Mobile menu open state */
.navbar.menu-open .navbar__nav {
  display: block;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-light-2);
  padding: 16px 0;
  box-shadow: var(--shadow-md);
}

.navbar.menu-open .navbar__list {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0 20px;
}

.navbar.menu-open .navbar__link {
  padding: 14px 12px;
  font-size: 1rem;
  border-radius: 0;
  border-bottom: 1px solid var(--color-light-2);
}

.navbar.menu-open .navbar__list li:last-child .navbar__link {
  border-bottom: none;
}

.navbar.menu-open .navbar__overlay {
  display: block;
}

/* ===== HERO ===== */
.hero {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 56px;
  background-color: var(--color-white);
}

.hero__inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background-color: var(--color-light);
  border: 1px solid var(--color-light-2);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-dark);
  width: fit-content;
}

.hero__title {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--color-black);
}

.hero__sub {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-dark-2);
  letter-spacing: -0.2px;
}

.hero__desc {
  font-size: 0.95rem;
  color: var(--color-gray);
  line-height: 1.7;
  max-width: 440px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
}

.hero__image-wrap {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: var(--color-light);
  aspect-ratio: 4 / 3;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Hero image fallback */
.hero__image-wrap::after {
  content: 'DX Labs';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-gray-light);
  pointer-events: none;
}

/* ===== ABOUT ===== */
.about__inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.about__text {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about__lead {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-dark);
  line-height: 1.7;
}

.about__body {
  font-size: 0.95rem;
  color: var(--color-gray);
  line-height: 1.75;
}

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

.point-card {
  padding: 20px;
  border: 1px solid var(--color-light-2);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-color: var(--color-white);
}

.point-card__icon {
  font-size: 0.8rem;
  color: var(--color-accent);
}

.point-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-black);
}

.point-card__desc {
  font-size: 0.875rem;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ===== PRODUCTS ===== */
.products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.product-card {
  background-color: #2A2A2A;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid #333;
  display: flex;
  flex-direction: column;
}

.product-card__image-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  background-color: #383838;
  overflow: hidden;
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}

.product-card:hover .product-card__image {
  transform: scale(1.03);
}

.product-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.product-card__badge--available {
  background-color: var(--color-available);
  color: var(--color-white);
}

.product-card__badge--preorder {
  background-color: var(--color-preorder);
  color: var(--color-white);
}

.product-card__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.product-card__category {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.product-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
}

.product-card__desc {
  font-size: 0.875rem;
  color: #AAA;
  line-height: 1.6;
}

.product-card__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}

.product-card__meta-row {
  display: flex;
  gap: 8px;
  font-size: 0.82rem;
}

.product-card__meta-label {
  color: #888;
  min-width: 52px;
}

.product-card__meta-value {
  color: #CCC;
  font-weight: 500;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid #3A3A3A;
  margin-top: auto;
}

.product-card__price {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.3px;
}

.collection__cta {
  text-align: center;
  margin-top: 40px;
}

/* ===== HIGHLIGHTS ===== */
.highlights__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.highlight-card {
  padding: 24px;
  border: 1px solid var(--color-light-2);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.highlight-card__icon {
  font-size: 1.4rem;
  color: var(--color-accent);
  line-height: 1;
}

.highlight-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
}

.highlight-card__desc {
  font-size: 0.875rem;
  color: var(--color-gray);
  line-height: 1.65;
}

/* ===== LOOKBOOK / GALLERY ===== */
.gallery__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.gallery__item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-light-2);
  aspect-ratio: 1 / 1;
}

.gallery__item--large {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
}

.gallery__item--wide {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
}

.gallery__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.35s ease;
}

.gallery__item:hover .gallery__image {
  transform: scale(1.04);
}

.lookbook__cta {
  text-align: center;
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lookbook__cta-text {
  font-size: 0.9rem;
  color: var(--color-gray);
}

/* ===== SIZE GUIDE ===== */
.size-guide__tables {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

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

.size-table__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
}

.size-table__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.size-table {
  width: 100%;
  min-width: 280px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.size-table th {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.3px;
}

.size-table th:first-child {
  border-radius: var(--radius-sm) 0 0 0;
}
.size-table th:last-child {
  border-radius: 0 var(--radius-sm) 0 0;
}

.size-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--color-light-2);
  color: var(--color-dark);
  font-size: 0.875rem;
}

.size-table tbody tr:nth-child(even) td {
  background-color: var(--color-white);
}

.size-table tbody tr:nth-child(odd) td {
  background-color: #FAFAFA;
}

.size-table tbody tr:last-child td {
  border-bottom: none;
}

.size-table td:first-child {
  font-weight: 700;
}

.size-guide__note {
  margin-top: 24px;
  padding: 14px 18px;
  background-color: #EEF2FF;
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.875rem;
  color: var(--color-dark);
  line-height: 1.65;
}

/* ===== HOW TO ORDER ===== */
.order-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 20px;
}

.order-steps::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background-color: var(--color-light-2);
}

.order-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 0;
  position: relative;
}

.order-step::before {
  content: '';
  position: absolute;
  left: -25px;
  top: 24px;
  width: 10px;
  height: 10px;
  background-color: var(--color-accent);
  border-radius: 50%;
  border: 2px solid var(--color-white);
  outline: 2px solid var(--color-accent);
}

.order-step__num {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-light-2);
  letter-spacing: -0.5px;
  line-height: 1;
  min-width: 32px;
}

.order-step__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.order-step__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-black);
}

.order-step__desc {
  font-size: 0.875rem;
  color: var(--color-gray);
  line-height: 1.6;
}

.order-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--color-light-2);
}

.order-info__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 10px;
}

.order-info__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 5px 12px;
  background-color: var(--color-light);
  border: 1px solid var(--color-light-2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-dark);
}

.order-cta {
  margin-top: 40px;
  padding: 32px;
  background-color: var(--color-light);
  border-radius: var(--radius-xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.order-cta__text {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-black);
}

/* ===== FAQ ===== */
.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-light-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq__item {
  border-bottom: 1px solid var(--color-light-2);
}

.faq__item:last-child {
  border-bottom: none;
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background-color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-black);
  text-align: left;
  transition: background-color var(--transition);
}

.faq__question:hover {
  background-color: var(--color-light);
}

.faq__question[aria-expanded="true"] {
  background-color: var(--color-light);
}

.faq__icon {
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
  line-height: 1;
}

.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease, padding 0.28s ease;
}

.faq__answer p {
  padding: 0 20px 20px;
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1.7;
}

.faq__item.open .faq__answer {
  max-height: 300px;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding-top: 56px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.footer__logo-img {
  height: 32px;
  width: auto;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.footer__logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  display: block;
}

.footer__tagline {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.footer__desc {
  font-size: 0.875rem;
  color: #8899AA;
  line-height: 1.7;
  max-width: 320px;
}

.footer__nav-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #8899AA;
  margin-bottom: 16px;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__nav-link {
  font-size: 0.9rem;
  color: #CCDDE9;
  transition: color var(--transition);
}

.footer__nav-link:hover {
  color: var(--color-white);
}

.footer__contact-desc {
  font-size: 0.875rem;
  color: #8899AA;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__contact-link {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: #CCDDE9;
  transition: color var(--transition);
  line-height: 1.5;
}

a.footer__contact-link:hover {
  color: var(--color-white);
}

.footer__contact-icon {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.footer__bottom {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

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

.footer__copy {
  font-size: 0.82rem;
  color: #5A6880;
}

.footer__socials {
  display: flex;
  gap: 10px;
}

.footer__social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background-color: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 700;
  color: #8899AA;
  letter-spacing: 0.5px;
  transition: background-color var(--transition), color var(--transition);
}

.footer__social:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* ===== FLOATING WHATSAPP BUTTON (desktop only) ===== */
.float-wa {
  display: none;
}

@media (min-width: 1024px) {
  .float-wa {
    display: flex;
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 900;
    align-items: center;
    gap: 8px;
    background-color: #25D366;
    color: #FFFFFF;
    border-radius: 100px;
    padding: 12px 20px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(37,211,102,0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
  }

  .float-wa:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37,211,102,0.45);
  }

  .float-wa__icon {
    font-size: 1rem;
    font-weight: 800;
    line-height: 1;
  }
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 900;
  width: 40px;
  height: 40px;
  background-color: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  transform: translateY(-2px);
}

/* ===== FOCUS STYLES ===== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ===== IMAGE FALLBACK ===== */
img[src=""],
img:not([src]) {
  visibility: hidden;
}

/* Image loading placeholder */
.hero__image-wrap,
.product-card__image-wrap,
.gallery__item {
  position: relative;
}

/* ============================================================
   RESPONSIVE - TABLET (768px+)
   ============================================================ */
@media (min-width: 768px) {

  :root {
    --section-gap: 88px;
  }

  .section {
    padding: 80px 0;
  }

  .section__title {
    font-size: 2.25rem;
  }

  /* Navbar */
  .navbar__hamburger {
    display: none;
  }

  .navbar__order-btn {
    display: none;
  }

  .navbar__nav {
    display: block !important;
    position: static;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
  }

  .navbar__list {
    flex-direction: row !important;
    gap: 4px;
    padding: 0;
  }

  .navbar__link {
    font-size: 0.875rem;
    padding: 8px 14px;
    border-bottom: none !important;
  }

  /* Hero */
  .hero__title {
    font-size: 3.5rem;
  }

  /* About */
  .about__inner {
    flex-direction: row;
    gap: 60px;
    align-items: flex-start;
  }

  .about__text {
    flex: 1;
  }

  .about__points {
    flex: 1;
    grid-template-columns: 1fr 1fr;
  }

  /* Products */
  .products__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Highlights */
  .highlights__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Gallery */
  .gallery__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .gallery__item--large {
    grid-column: 1 / -1;
  }

  .gallery__item--wide {
    grid-column: 1 / -1;
  }

  /* Order steps */
  .order-info {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 28px;
  }

  .order-info__group {
    flex: 1;
    min-width: 160px;
  }

  /* Size guide */
  .size-guide__tables {
    flex-direction: row;
    gap: 28px;
    align-items: flex-start;
  }

  .size-table__wrap {
    flex: 1;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1.5fr 1fr 1.5fr;
    gap: 40px;
  }

  .footer__bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  /* Float WA */
}

/* ============================================================
   RESPONSIVE - DESKTOP (1024px+)
   ============================================================ */
@media (min-width: 1024px) {

  .section {
    padding: 96px 0;
  }

  .section__title {
    font-size: 2.5rem;
  }

  /* Hero */
  .hero {
    padding-top: calc(var(--nav-height) + 56px);
    padding-bottom: 72px;
  }

  .hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 80px;
  }

  .hero__content {
    flex: 1;
    max-width: 520px;
  }

  .hero__title {
    font-size: 4rem;
  }

  .hero__image-wrap {
    flex: 1;
    aspect-ratio: 3 / 4;
    max-width: 460px;
  }

  /* Products */
  .products__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  /* Highlights */
  .highlights__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Gallery */
  .gallery__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .gallery__item {
    aspect-ratio: 3 / 4;
  }

  .gallery__item--large {
    grid-column: span 2;
    aspect-ratio: 1 / 1;
  }

  .gallery__item--wide {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
  }

  /* Order steps */
  .order-steps {
    flex-direction: row;
    padding-left: 0;
    padding-top: 24px;
    gap: 0;
  }

  .order-steps::before {
    top: 0;
    left: 20px;
    right: 20px;
    bottom: auto;
    width: auto;
    height: 2px;
  }

  .order-step {
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    padding: 24px 20px 0;
  }

  .order-step::before {
    left: 14px;
    top: -5px;
  }
}

/* ============================================================
   PRINT (optional, clean for printing)
   ============================================================ */
@media print {
  .navbar,
  .back-to-top {
    display: none !important;
  }
}