/* ═══════════════════════════════════════════════════
   Aryan Portfolio — Theme Picker (shared component)
   Used on homepage and all case study pages.
   Tokens come from theme.css (must load first).
   ═══════════════════════════════════════════════════ */

.theme-picker { position: relative; flex-shrink: 0; }

.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  height: 32px; padding: 0 12px;
  font: 700 10px/1 var(--mono);
  color: var(--amber);
  background: var(--s2);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  position: relative;
  isolation: isolate;
  overflow: visible;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  white-space: nowrap;
}
/* Dual-color streak — peach + cobalt 180° apart, swaps with theme tokens */
.theme-toggle::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: 999px;
  padding: 1px;
  background: conic-gradient(from var(--sa),
    transparent 0deg 30deg,
    rgba(var(--amber-rgb),0.14) 50deg,
    rgba(var(--amber-rgb),0.40) 80deg,
    rgba(var(--amber-rgb),0.65) 105deg,
    rgba(var(--amber-rgb),0.40) 130deg,
    rgba(var(--amber-rgb),0.14) 160deg,
    transparent 180deg 210deg,
    rgba(var(--amber-rgb),0.14) 230deg,
    rgba(var(--amber-rgb),0.40) 260deg,
    rgba(var(--amber-rgb),0.65) 285deg,
    rgba(var(--amber-rgb),0.40) 310deg,
    rgba(var(--amber-rgb),0.14) 340deg,
    transparent 360deg);
  filter: drop-shadow(0 0 2px rgba(var(--amber-rgb),0.30));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  animation: snakeRotate 18s linear -3s infinite, electricFlicker 6s steps(28, end) infinite;
  pointer-events: none;
  z-index: 1;
}
.theme-toggle .tt-label { white-space: nowrap; line-height: 1; }
/* Hover glow — matches the case-study "Back to all projects" button exactly. */
.theme-toggle:hover { text-shadow: 0 0 12px rgba(var(--amber-rgb),0.65), 0 0 22px rgba(var(--amber-rgb),0.30); }
.theme-picker.open .theme-toggle { color: var(--amber); border-color: rgba(var(--amber-rgb),0.45); }

.tt-chip {
  display: inline-flex; width: 22px; height: 10px;
  border-radius: 999px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.16);
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.30);
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.tt-chip .tt-half { width: 50%; height: 100%; display: block; }
.theme-toggle:hover .tt-chip { border-color: rgba(255,255,255,0.28); transform: translateY(-0.5px); }

.tt-chev { width: 9px; height: 6px; opacity: 0.5; transition: transform 0.22s cubic-bezier(0.4,0,0.2,1), opacity 0.2s; flex-shrink: 0; }
.theme-picker.open .tt-chev { transform: rotate(180deg); opacity: 0.9; }

.theme-menu {
  position: absolute; top: calc(100% + 8px); left: 50%; width: max-content;
  background: rgba(18,18,18,0.96);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px; padding: 5px;
  opacity: 0; pointer-events: none;
  transform: translate(-50%, -6px) scale(0.98);
  transform-origin: top center;
  transition: opacity 0.18s ease, transform 0.22s cubic-bezier(0.16,1,0.3,1);
  z-index: 250;
  box-shadow: 0 14px 32px rgba(0,0,0,0.55);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.theme-picker.open .theme-menu { opacity: 1; pointer-events: auto; transform: translate(-50%, 0) scale(1); }

.tm-heading {
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-dim);
  padding: 8px 14px 6px; text-align: center;
}
.tm-item {
  display: flex; align-items: center; justify-content: center;
  gap: 11px; padding: 9px 14px; border-radius: 8px;
  cursor: pointer;
  color: var(--text-muted);
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.09em; text-transform: uppercase;
  transition: background 0.16s ease, color 0.16s ease;
  white-space: nowrap;
}
.tm-item:hover { background: rgba(255,255,255,0.04); color: var(--text); }
.tm-item.active { color: var(--amber); background: rgba(var(--amber-rgb),0.08); }
.tm-item .tt-chip { width: 26px; height: 11px; }
.tm-item .tm-label { display: inline-flex; flex-direction: column; gap: 4px; line-height: 1; align-items: flex-start; }
.tm-item .tm-sub { font: 600 8px/1 var(--mono); letter-spacing: 0.16em; color: var(--text-dim); text-transform: uppercase; }

:root[data-theme="peach"] .theme-picker.open .theme-toggle { color: var(--peacock); border-color: rgba(var(--peacock-rgb),0.45); }
:root[data-theme="peach"] .tm-item.active { color: var(--peacock-bright); background: rgba(var(--peacock-rgb),0.09); }

@media (max-width: 768px) {
  .theme-toggle { padding: 0 11px; height: 32px; font-size: 9px; gap: 7px; }
  .tt-chip { width: 18px; height: 8px; }
}
@media (max-width: 480px) {
  .theme-toggle .tt-label, .theme-toggle .tt-chev { display: none; }
  .theme-toggle { width: 32px; padding: 0; justify-content: center; }
}