:root {
  color-scheme: dark;

  /* Core palette */
  --bg: #0b071a;
  --surface: rgba(255, 255, 255, 0.02);
  --surface-muted: #171327;
  --text: #f8f7ff;
  --text-strong: rgba(255, 255, 255, 0.94);
  --muted: rgba(255, 255, 255, 0.65);
  --accent1: #76d3ff;
  --accent2: #b677ff;
  --accent-1: #76d3ff;
  --accent-2: #b677ff;
  --border: rgba(255, 255, 255, 0.08);
  --focus: rgba(118, 211, 255, 0.28);

  /* Radii & elevation */
  --card-radius: 32px;
  --radius: 24px;
  --card-elev: 0 12px 30px rgba(0, 0, 0, 0.28);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);

  /* Typography */
  --font-sans: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --text-sm: 0.9rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --container-max: 1140px;
  --section-padding: 3.5rem 0;
  --section-gap: 2rem;
  --card-padding: 1.5rem;
  --grid-gap-sm: 0.75rem;
  --grid-gap-md: 1.25rem;
  --grid-gap-lg: 2rem;
}

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
}

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

button,
input,
select,
textarea {
  font: inherit;
}

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

button {
  cursor: pointer;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  color: var(--text);
}

h1 {
  font-size: var(--text-4xl);
  line-height: 1.05;
  letter-spacing: -0.04em;
  text-shadow: 0 24px 80px rgba(118, 211, 255, 0.12);
}

h2 {
  font-size: var(--text-3xl);
  line-height: 1.1;
  text-shadow: 0 16px 40px rgba(118, 211, 255, 0.08);
}

p {
  margin: 0;
  color: var(--muted);
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent1);
}

.container {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero .container {
  width: min(1280px, calc(100% - 4rem));
}

.site-header {
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 6, 15, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
}

/* === (A) Brand name === */
.brand {
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent1), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: filter 0.3s ease;
  flex-shrink: 0;
}

.brand:hover {
  filter: drop-shadow(0 0 8px rgba(118, 211, 255, 0.45));
}

/* === (B) Nav links === */
.site-nav a {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--muted);
  transition: color 0.25s ease;
  padding: 0.25rem 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a:hover::after {
  width: 100%;
}

/* === (C) Cart button === */
.cart-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(118, 211, 255, 0.2);
  color: var(--text);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.cart-button:hover {
  border-color: rgba(118, 211, 255, 0.5);
  background: rgba(118, 211, 255, 0.06);
  box-shadow: 0 0 16px rgba(118, 211, 255, 0.12);
}

/* === (D) Cart count badge === */
.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2));
  color: #0b071a;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
}

body.cart-drawer-open {
  overflow: hidden;
}

.cart-drawer-heading {
  display: grid;
  gap: 0.55rem;
}

.cart-drawer-count {
  width: fit-content;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(118, 211, 255, 0.08);
  border: 1px solid rgba(118, 211, 255, 0.12);
  color: var(--accent1);
  font-size: 0.76rem;
  font-weight: 700;
}

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 3, 9, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  z-index: 95;
}

.cart-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(420px, 100vw);
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at top left, rgba(118, 211, 255, 0.08), transparent 24%),
    linear-gradient(180deg, rgba(11, 7, 26, 0.98) 0%, rgba(6, 4, 12, 0.99) 100%);
  border-left: 1px solid rgba(118, 211, 255, 0.14);
  box-shadow: -24px 0 64px rgba(0, 0, 0, 0.45);
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.23, 1, 0.32, 1);
  z-index: 100;
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cart-drawer-kicker {
  margin-bottom: 0.2rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent1);
  font-weight: 800;
}

.cart-drawer-header h2 {
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.cart-drawer-close {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(118, 211, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-strong);
  font-size: 1.3rem;
  line-height: 1;
}

.cart-drawer-close:hover {
  border-color: rgba(118, 211, 255, 0.4);
  background: rgba(118, 211, 255, 0.08);
}

.cart-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
}

.cart-empty-state {
  display: grid;
  place-items: center;
  text-align: center;
  gap: 0.5rem;
  min-height: 100%;
  padding: 2rem 1rem;
}

.cart-empty-state[hidden] {
  display: none;
}

.checkout-empty[hidden] {
  display: none;
}

.cart-empty-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(118, 211, 255, 0.14), rgba(182, 119, 255, 0.14));
  color: var(--accent1);
  font-size: 1.5rem;
}

.cart-empty-state h3 {
  color: var(--text-strong);
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.cart-recommendations {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.cart-recommendations[hidden] {
  display: none;
}

.cart-recommendations-header {
  display: grid;
  gap: 0.25rem;
}

.cart-recommendations-kicker {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent1);
}

.cart-recommendations-header h3 {
  font-size: 1rem;
  color: var(--text-strong);
}

.cart-recommendations-list {
  display: grid;
  gap: 0.7rem;
}

.cart-recommendation-card {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.018));
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.cart-recommendation-thumb {
  width: 52px;
  height: 52px;
}

.cart-recommendation-image {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
}

.cart-recommendation-topline {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.cart-recommendation-topline h4 {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-strong);
}

.cart-recommendation-badge {
  padding: 0.16rem 0.45rem;
  border-radius: 999px;
  background: rgba(118, 211, 255, 0.08);
  border: 1px solid rgba(118, 211, 255, 0.12);
  color: var(--accent1);
  font-size: 0.68rem;
  font-weight: 700;
}

.cart-recommendation-reason {
  margin: 0.2rem 0 0.3rem;
  font-size: 0.77rem;
  color: var(--accent1);
}

.cart-recommendation-meta {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  font-size: 0.76rem;
  color: var(--muted);
}

.cart-recommendation-btn {
  padding: 0.55rem 0.8rem;
  border-radius: 10px;
  border: 1px solid rgba(118, 211, 255, 0.18);
  background: rgba(118, 211, 255, 0.06);
  color: var(--text-strong);
  font-weight: 700;
}

.cart-recommendation-btn:hover {
  border-color: rgba(118, 211, 255, 0.4);
  background: rgba(118, 211, 255, 0.12);
}

.cart-item-row {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 0.9rem;
  align-items: start;
  padding: 0.95rem;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.cart-item-row:hover {
  transform: translateY(-2px);
  border-color: rgba(118, 211, 255, 0.16);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
}

.cart-item-thumb {
  width: 72px;
  height: 72px;
}

.cart-item-image,
.cart-item-image-fallback {
  width: 100%;
  height: 100%;
  border-radius: 14px;
  object-fit: cover;
}

.cart-item-image-fallback {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(118, 211, 255, 0.12), rgba(182, 119, 255, 0.12));
  color: var(--accent1);
}

.cart-item-copy h3 {
  font-size: 0.98rem;
  color: var(--text-strong);
  margin-bottom: 0.2rem;
}

.cart-item-copy p {
  font-size: 0.85rem;
  color: var(--muted);
}

.cart-item-qty-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.65rem;
}

.cart-qty-btn {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid rgba(118, 211, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-strong);
  padding: 0;
}

.cart-qty-btn:hover {
  border-color: rgba(118, 211, 255, 0.45);
  background: rgba(118, 211, 255, 0.08);
}

.cart-qty-value {
  min-width: 1.5rem;
  text-align: center;
  font-weight: 700;
  color: var(--text-strong);
}

.cart-item-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.45rem;
}

.cart-item-meta strong {
  color: var(--text-strong);
  font-size: 0.95rem;
}

.cart-remove-btn {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: underline;
  padding: 0;
}

.cart-remove-btn:hover {
  color: var(--accent1);
}

.cart-drawer-footer {
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

.cart-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.4rem;
  color: var(--text-strong);
}

.cart-summary-row strong {
  font-size: 1.1rem;
}

.cart-shipping-status {
  font-size: 0.82rem;
  color: var(--accent1);
  margin-bottom: 0.55rem;
}

.cart-progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  margin-bottom: 0.75rem;
}

.cart-progress-fill {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  transition: width 0.25s ease;
}

.cart-footer-note {
  margin-bottom: 0.9rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.cart-drawer-actions {
  display: grid;
  gap: 0.65rem;
}

.cart-drawer-actions .btn {
  width: 100%;
}

@media (max-width: 480px) {
  .cart-item-row,
  .cart-recommendation-card {
    grid-template-columns: 60px 1fr;
  }

  .cart-item-thumb {
    width: 60px;
    height: 60px;
  }

  .cart-item-meta {
    grid-column: 2;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .cart-recommendation-btn {
    grid-column: 2;
    justify-self: start;
  }
}

/* === (E) Hamburger toggle — hidden on desktop === */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  transition: border-color 0.25s ease;
}

.nav-toggle:hover {
  border-color: rgba(118, 211, 255, 0.35);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}

/* Animated X on open */
.nav-toggle.open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* === (F) Mobile breakpoint === */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    order: 99;
    padding: 0.75rem 0;
    gap: 0;
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
  }

  .site-nav.open {
    display: flex;
    animation: navSlideDown 0.25s ease forwards;
  }

  .site-nav a,
  .site-nav .btn-nav {
    width: 100%;
    text-align: left;
    padding: 0.75rem 0.5rem;
    border-radius: 8px;
    font-size: var(--text-base);
  }

  .site-nav a:hover,
  .site-nav .btn-nav:hover {
    background: rgba(118, 211, 255, 0.06);
  }

  /* Reset underline effect on mobile — full-width highlight is cleaner */
  .site-nav a::after {
    display: none;
  }

  @keyframes navSlideDown {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

.hero {
  padding: 5rem 0 4rem;
}

.section {
  padding: 5rem 0;
  position: relative;
}

/* === Section dividers — gradient glow line between sections === */
.section + .section::before,
.hero + .section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(600px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent1), var(--accent2), transparent);
  opacity: 0.3;
}

/* === Scroll reveal === */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1),
    transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}

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

/* === Back-to-top button === */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(118, 211, 255, 0.15), rgba(182, 119, 255, 0.12));
  border: 1px solid rgba(118, 211, 255, 0.25);
  color: var(--text);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: linear-gradient(135deg, rgba(118, 211, 255, 0.25), rgba(182, 119, 255, 0.2));
  border-color: rgba(118, 211, 255, 0.5);
  box-shadow: 0 0 20px rgba(118, 211, 255, 0.2);
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .back-to-top {
    transition: opacity 0.15s ease;
  }
}

/* hero-card, hero-copy, hero-actions, hero-visual styles in ui-improvements.css */

/* === Mobile Sticky Bottom Bar === */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: rgba(9, 6, 15, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(118, 211, 255, 0.12);
  padding: 0.4rem 0 calc(0.4rem + env(safe-area-inset-bottom));
  justify-content: space-around;
  align-items: center;
}

@media (max-width: 768px) {
  .mobile-bottom-bar {
    display: flex;
  }

  main {
    padding-bottom: 4.5rem;
  }
}

.bottom-bar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 0.35rem 0.75rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s ease;
  position: relative;
}

.bottom-bar-item:hover,
.bottom-bar-item:focus-visible {
  color: var(--accent1);
}

.bottom-bar-icon {
  font-size: 1.2rem;
  line-height: 1;
}

.bottom-bar-label {
  text-transform: uppercase;
}

.bottom-bar-cart .cart-count {
  position: absolute;
  top: 0;
  right: 0.3rem;
  min-width: 16px;
  height: 16px;
  font-size: 0.6rem;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  color: #0b071a;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--text);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  color: #0b071a;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn-primary:focus-visible,
.btn-ghost:focus-visible {
  outline: 3px solid rgba(118, 211, 255, 0.28);
  outline-offset: 4px;
}

.card,
.product-card,
.collection-card,
.assistant-card,
.window-card {
  border-radius: var(--card-radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
  overflow: hidden;
}

.card:hover,
.product-card:hover,
.collection-card:hover,
.assistant-card:hover,
.window-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 68px rgba(0, 0, 0, 0.28);
}

.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

img,
picture img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.hero-visual img {
  max-height: 60vh;
  height: auto;
}

.product-image {
  height: auto;
  max-height: 60vh;
  object-fit: cover;
}

.focus-visible {
  outline: 3px solid rgba(118, 211, 255, 0.28);
  outline-offset: 4px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(118, 211, 255, 0.28);
  outline-offset: 4px;
}

body {
  color: var(--text);
}