/* ============================================================
   CARRY THEORY — Design Tokens
   Minimal / Swiss concept for minimalist carry-on travel gear.
   ============================================================ */

:root, [data-theme="light"] {
  /* Surfaces — cool stone grey */
  --color-bg: #F1F1EE;
  --color-surface: #F8F8F6;
  --color-surface-2: #FFFFFF;
  --color-surface-offset: #E6E6E1;
  --color-surface-offset-2: #DADAD4;
  --color-border: #D2D2CC;
  --color-divider: #E0E0DA;

  /* Text */
  --color-text: #171715;
  --color-text-muted: #63635D;
  --color-text-faint: #9A9A92;
  --color-text-inverse: #F5F5F2;

  /* Primary accent — graphite / black */
  --color-primary: #1B1B18;
  --color-primary-hover: #000000;
  --color-primary-active: #000000;
  --color-primary-highlight: #E1E1DC;

  /* Warning / Error / Success */
  --color-warning: #9C5A2E;
  --color-warning-highlight: #EBDCD0;
  --color-error: #932E2E;
  --color-error-highlight: #EAD4D2;
  --color-success: #3A6E4F;
  --color-success-highlight: #D8E5DC;

  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 100 / 0.06);
  --shadow-md: 0 6px 20px oklch(0.2 0.02 100 / 0.08);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 100 / 0.14);

  --content-narrow: 640px;
  --content-default: 1080px;
  --content-wide: 1320px;

  --font-display: 'Switzer', 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'General Sans', 'Helvetica Neue', sans-serif;
}

[data-theme="dark"] {
  --color-bg: #121212;
  --color-surface: #181818;
  --color-surface-2: #1E1E1E;
  --color-surface-offset: #232323;
  --color-surface-offset-2: #2A2A2A;
  --color-border: #383838;
  --color-divider: #292929;

  --color-text: #EDEDEB;
  --color-text-muted: #A0A09B;
  --color-text-faint: #6E6E69;
  --color-text-inverse: #181818;

  --color-primary: #D9D9D4;
  --color-primary-hover: #FFFFFF;
  --color-primary-active: #FFFFFF;
  --color-primary-highlight: #2E2E2C;

  --color-warning: #C98052;
  --color-warning-highlight: #3A2C22;
  --color-error: #C36A6A;
  --color-error-highlight: #362222;
  --color-success: #6FA383;
  --color-success-highlight: #23302A;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 20px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
}

/* ============================================================
   Type Scale
   ============================================================ */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 { text-wrap: balance; line-height: 1.1; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
p, li, figcaption { text-wrap: pretty; }

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

::selection { background: color-mix(in oklab, var(--color-primary) 25%, transparent); color: var(--color-text); }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

a, button, [role="button"], input, textarea, select {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

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

/* ============================================================
   Layout primitives
   ============================================================ */
.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}
.wrap--narrow { max-width: var(--content-narrow); }
.wrap--default { max-width: var(--content-default); }

section { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); }
.section-tight { padding-block: clamp(var(--space-10), 5vw, var(--space-16)); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  white-space: nowrap;
  min-height: 44px;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--primary:active { background: var(--color-primary-active); }
.btn--outline { background: transparent; border-color: var(--color-text); color: var(--color-text); }
.btn--outline:hover { background: var(--color-text); color: var(--color-bg); }
[data-theme="dark"] .btn--outline:hover { color: var(--color-text-inverse); }
.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-text); }
.btn--full { width: 100%; }
.btn--sm { padding: 0.6rem 1.1rem; font-size: var(--text-xs); min-height: 36px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-divider);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.brand svg { width: 28px; height: 28px; color: var(--color-primary); }
.brand span small {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.65em;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.main-nav { display: flex; align-items: center; gap: var(--space-8); }
.main-nav ul { display: flex; gap: var(--space-6); }
.main-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  padding-block: var(--space-1);
  border-bottom: 1px solid transparent;
}
.main-nav a:hover, .main-nav a.is-active { color: var(--color-text); border-color: var(--color-primary); }

.header-actions { display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0; }
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: var(--radius-full);
  color: var(--color-text);
  position: relative;
}
.icon-btn:hover { background: var(--color-surface-offset); }
.icon-btn svg { width: 20px; height: 20px; }
.cart-count {
  position: absolute;
  top: 3px; right: 3px;
  min-width: 17px; height: 17px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 0.62rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: 3px;
}
.cart-count[hidden] { display: none; }

.nav-toggle { display: none; }
.mobile-nav { display: none; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-surface-offset);
  border-top: 1px solid var(--color-divider);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding-block: var(--space-16);
}
.footer-brand p { color: var(--color-text-muted); max-width: 32ch; margin-top: var(--space-3); font-size: var(--text-sm); }
.footer-col h4 { font-family: var(--font-body); font-weight: 700; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: var(--space-4); color: var(--color-text-muted); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a { font-size: var(--text-sm); color: var(--color-text); }
.footer-col a:hover { color: var(--color-primary); }

.newsletter-form { display: flex; gap: var(--space-2); margin-top: var(--space-4); max-width: 360px; }
.newsletter-form input {
  flex: 1;
  padding: 0.7rem var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
}
.newsletter-form input:focus-visible { border-color: var(--color-primary); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  flex-wrap: wrap;
}
.payment-icons { display: flex; gap: var(--space-3); align-items: center; opacity: 0.6; }
.payment-icons svg { height: 18px; width: auto; }

/* ============================================================
   Buttons / forms shared
   ============================================================ */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.03em; color: var(--color-text-muted); text-transform: uppercase; }
.field input, .field select, .field textarea {
  padding: 0.75rem var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { border-color: var(--color-primary); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

/* ============================================================
   Product Cards
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8) var(--space-6);
}
.product-card { display: flex; flex-direction: column; }
.product-card__media {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-offset);
  margin-bottom: var(--space-4);
}
.product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 420ms cubic-bezier(0.16,1,0.3,1); }
.product-card:hover .product-card__media img { transform: scale(1.045); }
.product-card__badge {
  position: absolute;
  top: var(--space-3); left: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--color-surface-2);
  color: var(--color-text);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
}
.product-card__quick {
  position: absolute;
  bottom: var(--space-3); left: var(--space-3); right: var(--space-3);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition-interactive), transform var(--transition-interactive);
}
.product-card:hover .product-card__quick, .product-card:focus-within .product-card__quick { opacity: 1; transform: translateY(0); }
.product-card__cat { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-1); }
.product-card__name { font-family: var(--font-display); font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-1); }
.product-card__name a:hover { color: var(--color-primary); }
.product-card__price { display: flex; gap: var(--space-2); align-items: baseline; font-size: var(--text-sm); }
.price-strike { text-decoration: line-through; color: var(--color-text-faint); }

/* ============================================================
   Utility text
   ============================================================ */
.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.mt-2 { margin-top: var(--space-2); } .mt-4 { margin-top: var(--space-4); } .mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); } .mt-10 { margin-top: var(--space-10); } .mt-12 { margin-top: var(--space-12); }
.mb-2 { margin-bottom: var(--space-2); } .mb-4 { margin-bottom: var(--space-4); } .mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); } .mb-12 { margin-bottom: var(--space-12); }

/* ============================================================
   Theme toggle
   ============================================================ */
[data-theme-toggle] svg { width: 20px; height: 20px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .footer-top { grid-template-columns: 1.3fr 1fr 1fr; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  .main-nav ul { display: none; }
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: var(--radius-full);
  }
  .nav-toggle:hover { background: var(--color-surface-offset); }
  .nav-toggle svg { width: 22px; height: 22px; }
  .mobile-nav {
    display: block;
    position: fixed; inset: 0; top: 65px; background: var(--color-bg); z-index: 55;
    padding: var(--space-6); transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity var(--transition-interactive), transform var(--transition-interactive);
    overflow-y: auto;
  }
  .mobile-nav.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .mobile-nav ul { display: flex; flex-direction: column; gap: var(--space-1); }
  .mobile-nav a { display: block; font-family: var(--font-display); font-size: var(--text-lg); padding-block: var(--space-3); border-bottom: 1px solid var(--color-divider); }
  .footer-top { grid-template-columns: 1fr; gap: var(--space-8); }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-5) var(--space-4); }
  .field-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4) var(--space-3); }
}