/* ==========================================================================
   KSENTERPRISES — Design System
   Editorial, minimal, premium Indian fashion e-commerce.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,500&family=Inter:wght@400;500;600;700&display=swap');

:root{
  /* ---- Color tokens ---- */
  --color-bg:            #FAF8F3;   /* warm ivory canvas */
  --color-surface:       #FFFFFF;   /* cards, panels */
  --color-surface-alt:   #F1EEE6;   /* subtle recessed surface */
  --color-primary:       #1F3D2E;   /* deep bottle green — brand */
  --color-primary-dark:  #14291E;
  --color-primary-tint:  #E7EEE9;
  --color-secondary:     #B8873A;   /* warm gold — accent, sparingly */
  --color-secondary-tint:#F7EEDD;
  --color-text:          #1B1A17;   /* near-ink */
  --color-text-muted:    #6B6560;
  --color-border:        #E4DFD3;
  --color-border-strong: #CFC8B8;
  --color-success:       #2F6B4F;
  --color-warning:       #B8873A;
  --color-error:         #A63D40;
  --color-error-tint:    #FBEAEA;
  --color-overlay:       rgba(20, 18, 15, 0.55);

  /* ---- Typography ---- */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --fs-h1: clamp(2.4rem, 4.2vw, 4rem);
  --fs-h2: clamp(1.9rem, 3vw, 2.75rem);
  --fs-h3: clamp(1.4rem, 2vw, 1.85rem);
  --fs-h4: 1.15rem;
  --fs-body: 1rem;
  --fs-caption: 0.8125rem;
  --fs-button: 0.875rem;
  --fs-nav: 0.9rem;
  --fs-price: 1.05rem;
  --fs-meta: 0.8125rem;

  /* ---- Spacing scale ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* ---- Radius / shadow ---- */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 2px rgba(20,18,15,0.06);
  --shadow-md: 0 6px 20px rgba(20,18,15,0.08);
  --shadow-lg: 0 16px 40px rgba(20,18,15,0.14);

  /* ---- Layout ---- */
  --container-max: 1360px;
  --header-h: 128px;
  --header-h-scrolled: 76px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur-fast: 150ms;
  --dur-base: 240ms;
}

/* ---- Reset ---- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin: 0; padding: 0; list-style: none; }
button{ font-family: inherit; cursor: pointer; }
input, select, textarea{ font-family: inherit; font-size: inherit; }
h1,h2,h3,h4,p,figure{ margin: 0; }

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

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

/* ---- Typography roles ---- */
h1, .h1{ font-family: var(--font-display); font-size: var(--fs-h1); font-weight: 500; line-height: 1.08; letter-spacing: -0.01em; }
h2, .h2{ font-family: var(--font-display); font-size: var(--fs-h2); font-weight: 500; line-height: 1.14; letter-spacing: -0.01em; }
h3, .h3{ font-family: var(--font-display); font-size: var(--fs-h3); font-weight: 500; line-height: 1.24; }
h4, .h4{ font-family: var(--font-body); font-size: var(--fs-h4); font-weight: 600; }
.caption{ font-size: var(--fs-caption); color: var(--color-text-muted); }
.eyebrow{
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-secondary);
}
.price{ font-family: var(--font-body); font-size: var(--fs-price); font-weight: 700; }
.price-strike{ color: var(--color-text-muted); text-decoration: line-through; font-weight: 400; font-size: 0.9em; }
.text-muted{ color: var(--color-text-muted); }

/* ---- Layout helpers ---- */
.container{ max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-5); }
.section{ padding: var(--space-8) 0; }
.section-head{ display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-6); flex-wrap: wrap; }
.divider{ height: 1px; background: var(--color-border); border: 0; margin: var(--space-6) 0; }
.visually-hidden{ position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link{
  position: absolute; left: var(--space-3); top: -60px; background: var(--color-primary); color: #fff;
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm); z-index: 999; transition: top var(--dur-base) var(--ease);
}
.skip-link:focus{ top: var(--space-3); }

/* ---- Buttons ---- */
.btn{
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-size: var(--fs-button); font-weight: 600; letter-spacing: 0.02em;
  padding: 14px 28px; border-radius: var(--radius-sm); border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--color-primary); color: #fff; }
.btn-primary:hover{ background: var(--color-primary-dark); }
.btn-secondary{ background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-secondary:hover{ background: var(--color-primary); color: #fff; }
.btn-ghost{ background: transparent; color: var(--color-text); border-color: var(--color-border-strong); }
.btn-ghost:hover{ border-color: var(--color-text); }
.btn-gold{ background: var(--color-secondary); color: #fff; }
.btn-gold:hover{ background: #9c7530; }
.btn-block{ width: 100%; }
.btn-sm{ padding: 9px 16px; font-size: 0.8125rem; }
.btn:disabled{ opacity: 0.5; cursor: not-allowed; }
.btn-icon{
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid transparent; background: transparent;
  color: var(--color-text); transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.btn-icon:hover{ background: var(--color-surface-alt); }

/* ---- Forms ---- */
.field{ display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.field label{ font-size: 0.8125rem; font-weight: 600; }
.field .hint{ font-size: 0.75rem; color: var(--color-text-muted); }
.field input, .field select, .field textarea{
  padding: 12px 14px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text); transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{
  border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-tint); outline: none;
}
.field.error input, .field.error select, .field.error textarea{ border-color: var(--color-error); }
.field .error-msg{ font-size: 0.75rem; color: var(--color-error); display: none; }
.field.error .error-msg{ display: block; }
.checkbox-row{ display: flex; align-items: center; gap: var(--space-2); font-size: 0.875rem; }
.checkbox-row input{ width: 16px; height: 16px; accent-color: var(--color-primary); }

/* ---- Badges ---- */
.badge{
  display: inline-block; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 10px; border-radius: var(--radius-sm); background: var(--color-primary); color: #fff;
}
.badge-sale{ background: var(--color-error); }
.badge-new{ background: var(--color-primary); }
.badge-outline{ background: transparent; border: 1px solid var(--color-border-strong); color: var(--color-text-muted); }

/* ---- Cards ---- */
.card{ background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }

/* ---- Scroll reveal ---- */
.reveal{ opacity: 0; transform: translateY(18px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }