/* ============================
   WatchLinkUp — Premium Design System v3
   Apple · Stripe · SaaS Premium
   ============================ */


/* ─────────────────────────────
   1. DESIGN TOKENS
   ───────────────────────────── */
:root {

  /* ── Backgrounds ── */
  --bg:             #000000;
  --bg-top:         #000000;
  --bg-bottom:      #080809;

  /* ── Surfaces (layered transparency) ── */
  --surface:        rgba(255,255,255,0.045);
  --surface-2:      rgba(255,255,255,0.07);
  --surface-3:      rgba(255,255,255,0.10);
  --surface-solid:  #111113;
  --surface-hover:  rgba(255,255,255,0.065);

  /* ── Text ── */
  --text:     #EDEEF2;
  --text-2:   #C4C7D0;
  --muted:    #8E949E;

  /* ── Borders ── */
  --border:   rgba(255,255,255,0.086);
  --border-2: rgba(255,255,255,0.14);

  /* ── Brand (Silver) ── */
  --primary:      #D5D8E0;
  --primary-600:  #BCC1CB;
  --primary-700:  #A5ABB8;
  --on-primary:   #0E0F12;
  --accent:       #FFFFFF;

  /* ── Semantic colors ── */
  --c-sell:       #ef4444;
  --c-sell-bg:    rgba(239,68,68,0.08);
  --c-sell-text:  #fca5a5;
  --c-buy:        #22c55e;
  --c-buy-text:   #86efac;
  --c-warn:       #f59e0b;
  --c-warn-text:  #fde68a;
  --c-gold:       #FFD54A;
  --c-gold-end:   #FFE588;

  /* ── Border Radius Scale ── */
  --r-xs:   6px;
  --r-sm:   10px;
  --r-md:   14px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-2xl:  32px;
  --r-pill: 9999px;

  /* ── Shadows ── */
  --shadow-xs:    0 1px 4px rgba(0,0,0,0.32);
  --shadow-sm:    0 4px 14px -6px rgba(0,0,0,0.55);
  --shadow-1:     0 12px 36px -20px rgba(0,0,0,0.75);
  --shadow-2:     0 28px 64px -28px rgba(0,0,0,0.88);
  --shadow-3:     0 48px 96px -40px rgba(0,0,0,0.95);
  --shadow-inset: inset 0 1px 0 rgba(255,255,255,0.065);
  --ring: 0 0 0 3px color-mix(in oklab, var(--primary) 28%, transparent);

  /* ── Motion ── */
  --ease:        cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-fast:   140ms;
  --t-base:   240ms;
  --t-slow:   400ms;
}


/* ─────────────────────────────
   2. GLOBAL LAYOUT
   ───────────────────────────── */
html { scroll-behavior: smooth; }

body {
  color: var(--text);
  background:
    radial-gradient(1200px 600px at -10% -20%,
      color-mix(in oklab, var(--primary) 7%, transparent) 0%,
      transparent 62%),
    radial-gradient(1000px 600px at 115% 0%,
      color-mix(in oklab, var(--accent) 8%, transparent) 0%,
      transparent 58%),
    linear-gradient(185deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}


/* ─────────────────────────────
   3. BUTTONS
   ───────────────────────────── */
.btn {
  border-radius: var(--r-pill);
  padding: .72rem 1.25rem;
  border: 1px solid color-mix(in oklab, var(--primary) 80%, transparent);
  background: linear-gradient(
    175deg,
    color-mix(in oklab, var(--primary) 96%, #ffffff 4%) 0%,
    var(--primary-600) 100%
  );
  color: var(--on-primary);
  font-weight: 700;
  letter-spacing: .01em;
  box-shadow: var(--shadow-1), var(--shadow-inset);
  transition:
    transform var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease),
    filter var(--t-base) var(--ease),
    background var(--t-base) var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2), var(--shadow-inset);
  filter: saturate(1.06) brightness(1.02);
}
.btn:focus-visible { outline: none; box-shadow: var(--ring), var(--shadow-2); }
.btn:active        { transform: translateY(0); filter: saturate(.96); }

.btn.secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-xs), var(--shadow-inset);
}
.btn.secondary:hover {
  background: var(--surface-3);
  border-color: var(--border-2);
  box-shadow: var(--shadow-sm), var(--shadow-inset);
}

.btn.outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: none;
}
.btn.outline:hover { background: color-mix(in oklab, var(--primary) 12%, transparent); }


/* ─────────────────────────────
   4. PILLS / BADGES
   ───────────────────────────── */
.pill {
  border-radius: var(--r-pill);
  padding: .3rem .75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: .8rem;
  font-weight: 500;
}


/* ─────────────────────────────
   5. CARDS
   ───────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1), var(--shadow-inset);
  transition:
    transform var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease),
    background var(--t-base) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2), var(--shadow-inset);
  border-color: var(--border-2);
  background: var(--surface-2);
}


/* ─────────────────────────────
   6. GLASS
   ───────────────────────────── */
.glass {
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  background: color-mix(in oklab, var(--surface) 72%, transparent);
}


/* ─────────────────────────────
   7. DIVIDERS / LINKS / DIALOG
   ───────────────────────────── */
hr, .divider { border-color: var(--border); }

a { color: inherit; text-decoration: none; }
a.nav-link { padding-bottom: 2px; position: relative; }

dialog::backdrop {
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}


/* ─────────────────────────────
   8. BUNDLE (Variant A)
   ───────────────────────────── */
.bundle {
  display: flex; flex-direction: column; justify-content: space-between;
  height: 100%;
  border-radius: var(--r-2xl);
  padding: 2rem;
  background: linear-gradient(180deg, var(--surface-2) 0%, var(--surface) 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1), var(--shadow-inset);
  transition: transform var(--t-slow) var(--ease), box-shadow var(--t-slow) var(--ease);
}
.bundle:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-3), var(--shadow-inset);
  border-color: var(--border-2);
}

.bundle-visual {
  display: grid; place-items: center; aspect-ratio: 4/3;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.bundle-title { font-size: 1.875rem; line-height: 2.25rem; font-weight: 800; margin-top: 1rem; }
.bundle-text  { color: var(--muted); margin-top: .5rem; line-height: 1.65; }
.bundle-cta   { margin-top: 1.5rem; }


/* ─────────────────────────────
   9. BUNDLE COMPACT
   ───────────────────────────── */
.bundle--compact {
  border-radius: var(--r-lg);
  padding: 1rem;
  background: linear-gradient(180deg, var(--surface-2) 0%, var(--surface) 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-1), var(--shadow-inset);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.bundle--compact:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
@media (hover: none) {
  .bundle--compact:active { transform: translateY(-4px); box-shadow: var(--shadow-2), var(--shadow-inset); border-color: var(--border-2); }
}
.bundle--compact .title { font-weight: 700; }


/* ─────────────────────────────
   10. INPUTS (global native)
   ───────────────────────────── */
:where(input, select, textarea) {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition:
    border-color var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease);
}
:where(input, select, textarea):focus {
  outline: none;
  box-shadow: var(--ring);
  border-color: color-mix(in oklab, var(--primary) 50%, var(--border));
}


/* ─────────────────────────────
   11. LIFT UTILITY
   ───────────────────────────── */
.lift { transition: transform var(--t-slow) var(--ease), box-shadow var(--t-slow) var(--ease); }
.lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }

/* Unified for core components */
.card, .bundle, .bundle--compact {
  transition:
    transform var(--t-base) var(--ease),
    box-shadow var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease),
    background var(--t-base) var(--ease);
}
.card:hover, .bundle:hover, .bundle--compact:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-2), var(--shadow-inset);
  border-color: var(--border-2);
}
@media (hover: none) {
  .card:active, .bundle:active, .bundle--compact:active {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2), var(--shadow-inset);
    border-color: var(--border-2);
  }
}


/* ─────────────────────────────
   12. UNDERLINE HOVER ANIMATION
   ───────────────────────────── */
.underline-gradient {
  background-image:
    linear-gradient(to right, rgba(0,0,0,0) 0, rgba(0,0,0,0) 100%),
    linear-gradient(90deg,
      var(--primary) 0%,
      color-mix(in oklab, var(--accent) 40%, var(--primary)) 50%,
      var(--primary) 100%
    );
  background-size: 100% 1px, 0 1.5px;
  background-position: 0 100%, 0 100%;
  background-repeat: no-repeat;
  transition: background-size 420ms var(--ease);
}
.underline-gradient:hover { background-size: 100% 1px, 100% 1.5px; }


/* ─────────────────────────────
   13. REDUCED MOTION
   ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .card:hover, .bundle:hover, .bundle--compact:hover {
    transform: none !important;
    box-shadow: none !important;
  }
}


/* ─────────────────────────────
   14. LISTING CARD CTA
   ───────────────────────────── */
.listing-card .card-cta { display: none; }

.listing-card.expanded .card-cta {
  display: block;
  padding-top: 0.15rem;
  padding-left: 2px;
  position: relative;
  z-index: 1;
}

@media (max-width: 767px) {
  .listing-card.expanded .listing-details { row-gap: 0.35rem; }
  .listing-card.expanded .listing-details > div:last-child { margin-bottom: 0; }
  .listing-card.expanded .card-cta { margin-top: 0 !important; }
  .listing-card.expanded .listing-details {
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
  }
  .listing-card.expanded .card-cta { margin-top: -2px !important; }
  .listing-details > div:last-child { margin-bottom: 0.35rem; }
}

.listing-card.expanded .card-cta .btn {
  width: 100%;
  padding: .75rem 1.05rem;
  font-size: .9rem;
  font-weight: 600;
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-2);
}

@media (max-width: 768px) {
  body > .homepage {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
}


/* ─────────────────────────────
   15. FORMS SYSTEM (unified)
   ───────────────────────────── */
.field { display: grid; gap: .45rem; }

.label {
  font-size: .875rem;
  font-weight: 600;
  color: var(--text);
  opacity: .88;
  letter-spacing: .01em;
}

.input, .textarea, .select {
  appearance: none;
  width: 100%;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--bg, #000) 88%, transparent);
  color: var(--text);
  padding: .68rem .95rem;
  font: inherit;
  line-height: 1.25rem;
  transition:
    border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease);
}

.input.lg, .select.lg { padding: .82rem 1.05rem; border-radius: var(--r-md); font-size: 1.05rem; }
.input.sm, .select.sm { padding: .5rem .75rem; border-radius: var(--r-xs); font-size: .875rem; }

.input:hover, .textarea:hover, .select:hover {
  border-color: color-mix(in oklab, var(--border) 50%, var(--text) 50%);
}
.input:focus, .textarea:focus, .select:focus {
  outline: 2px solid color-mix(in oklab, var(--primary) 28%, transparent);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 16%, transparent);
  border-color: color-mix(in oklab, var(--primary) 40%, var(--border));
  background: color-mix(in oklab, var(--bg, #000) 96%, transparent);
}

.input::placeholder, .textarea::placeholder {
  color: color-mix(in oklab, var(--text) 38%, transparent);
  opacity: .65;
}

.input[disabled], .select[disabled], .textarea[disabled] {
  opacity: .55;
  cursor: not-allowed;
}

.input[type="number"]::-webkit-outer-spin-button,
.input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.input[type="number"] { -moz-appearance: textfield; }

.textarea { min-height: 120px; resize: vertical; }

.select {
  background-image:
    linear-gradient(45deg, var(--muted) 50%, transparent 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: right .9rem center, right .55rem center;
  background-size: .45rem .45rem, .45rem .45rem;
  background-repeat: no-repeat;
  padding-right: 2rem;
}

.checkbox, .radio { accent-color: var(--primary); }
.label-inline { display: inline-flex; align-items: center; gap: .5rem; }

/* Dropdown panel */
.dropdown-panel {
  border: 1px solid var(--border-2);
  background: rgba(10,10,12,0.97);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-2);
  padding: .3rem;
}
.dropdown-item {
  padding: .52rem .78rem;
  border-radius: var(--r-xs);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease);
}
.dropdown-item:hover { background: var(--surface-hover); }
/* forms.css merged into theme.css */