/* ═══════════════════════════════════════════════════
   DJ SKINS — Main Stylesheet
   Theme: Dark Cyberpunk / Premium Audio
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@700;900&family=Exo+2:wght@400;500;600;700;800&family=Inter:wght@400;500&display=swap');

/* ── Variables ──────────────────────────────────── */
:root {
  --clr-bg:        #060a12;
  --clr-surface:   #0d1420;
  --clr-panel:     rgba(10, 16, 28, 0.92);
  --clr-blue:      #1a9fff;
  --clr-blue-glow: rgba(26, 159, 255, 0.35);
  --clr-orange:    #ff7400;
  --clr-orange-glow: rgba(255, 116, 0, 0.35);
  --clr-text:      #e8eaf0;
  --clr-muted:     #5a6478;
  --clr-border:    rgba(255, 255, 255, 0.08);
  --clr-success:   #00d084;
  --clr-error:     #ff4060;

  --font-display: 'Orbitron', sans-serif;
  --font-ui:      'Exo 2', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Background ─────────────────────────────────── */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(26,159,255,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 20%,  rgba(255,116,0,0.05) 0%, transparent 60%),
    url('../img/bg.webp') center/cover no-repeat;
  filter: brightness(0.7);
}
.bg-scene::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(6,10,18,0.3) 0%, rgba(6,10,18,0.6) 60%, rgba(6,10,18,0.95) 100%);
}

/* ── Layout ─────────────────────────────────────── */
#app {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 0 16px 60px;
}

/* ── Header / Title ─────────────────────────────── */
.site-header {
  text-align: center;
  padding: clamp(48px, 8vh, 100px) 16px 0;
  pointer-events: none;
}
.site-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 3.4rem);
  letter-spacing: 0.06em;
  line-height: 1;
  color: #fff;
  text-shadow: 0 0 60px rgba(26,159,255,0.25), 0 2px 4px rgba(0,0,0,0.8);
}
.site-header p {
  font-family: var(--font-ui);
  font-size: clamp(0.75rem, 1.8vw, 0.95rem);
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--clr-blue);
  margin-top: 10px;
  text-shadow: 0 0 24px var(--clr-blue-glow);
}

/* ── 3D Viewport ────────────────────────────────── */
.viewport-wrap {
  position: relative;
  width: 100%;
  max-width: 720px;
  aspect-ratio: 16/9;
  margin: 24px auto 0;
}
#canvas-3d {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: var(--radius-lg);
  outline: none;
}
.viewport-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
}
.viewport-empty.visible { opacity: 1; }
.viewport-empty svg { opacity: 0.2; }
.viewport-empty span {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  color: var(--clr-muted);
}
.loader-3d {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,10,18,0.7);
  border-radius: var(--radius-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.loader-3d.active { opacity: 1; pointer-events: auto; }
.spinner {
  width: 40px; height: 40px;
  border: 3px solid rgba(26,159,255,0.2);
  border-top-color: var(--clr-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Control Buttons Row ────────────────────────── */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 28px;
  width: 100%;
  max-width: 680px;
}

/* ── Base Button ────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 28px;
  height: 52px;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
  transition: all var(--transition);
  outline: none;
  white-space: nowrap;
}
.btn::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition);
}
.btn:focus-visible { outline: 2px solid var(--clr-blue); outline-offset: 3px; }

/* Blue button */
.btn-blue {
  color: var(--clr-blue);
  border-color: var(--clr-blue);
}
.btn-blue::before {
  background: radial-gradient(ellipse at center, var(--clr-blue-glow), transparent 70%);
  filter: blur(8px);
}
.btn-blue:hover { color: #fff; box-shadow: 0 0 20px var(--clr-blue-glow), inset 0 0 20px rgba(26,159,255,0.08); }
.btn-blue:hover::before { opacity: 1; }
.btn-blue.active { color: #fff; background: rgba(26,159,255,0.1); box-shadow: 0 0 28px var(--clr-blue-glow); }

/* Orange button */
.btn-orange {
  color: var(--clr-orange);
  border-color: var(--clr-orange);
}
.btn-orange::before {
  background: radial-gradient(ellipse at center, var(--clr-orange-glow), transparent 70%);
  filter: blur(8px);
}
.btn-orange:hover { color: #fff; box-shadow: 0 0 20px var(--clr-orange-glow), inset 0 0 20px rgba(255,116,0,0.08); }
.btn-orange:hover::before { opacity: 1; }
.btn-orange.active { color: #fff; background: rgba(255,116,0,0.1); box-shadow: 0 0 28px var(--clr-orange-glow); }

/* Disabled */
.btn:disabled, .btn[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* Checkout full-width */
.btn-checkout {
  width: 100%;
  max-width: 340px;
  margin-top: 16px;
  justify-content: center;
}

/* ── Panel (shared slide-down container) ────────── */
.panel {
  width: 100%;
  max-width: 680px;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}
.panel.open {
  max-height: 700px;
  opacity: 1;
}
.panel-inner {
  margin-top: 12px;
  background: var(--clr-panel);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

/* ── Device Selector ────────────────────────────── */
.select-group {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.select-group label {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--clr-muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.select-wrap {
  position: relative;
}
.select-wrap select {
  width: 100%;
  height: 44px;
  padding: 0 40px 0 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  appearance: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.select-wrap select:focus {
  outline: none;
  border-color: var(--clr-blue);
  box-shadow: 0 0 0 3px var(--clr-blue-glow);
}
.select-wrap select:disabled { opacity: 0.4; cursor: not-allowed; }
.select-wrap::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  border-right: 2px solid var(--clr-muted);
  border-bottom: 2px solid var(--clr-muted);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}
.select-wrap select option { background: var(--clr-surface); }

/* Request device block */
.request-device-block {
  margin: 0 20px 20px;
  padding: 16px;
  border: 1px dashed rgba(255,116,0,0.3);
  border-radius: var(--radius-sm);
  background: rgba(255,116,0,0.03);
}
.request-device-block summary {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--clr-orange);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}
.request-device-block summary::-webkit-details-marker { display: none; }
.request-device-block summary::before {
  content: '+';
  font-size: 1.1rem;
  transition: transform var(--transition);
}
.request-device-block[open] summary::before { transform: rotate(45deg); }
.request-device-form {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Skin Grid ──────────────────────────────────── */
.skins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
  padding: 20px;
}
.skin-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}
.skin-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.skin-card .skin-name {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 4px 6px;
  background: rgba(0,0,0,0.7);
  font-family: var(--font-ui);
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-align: center;
  transform: translateY(100%);
  transition: transform var(--transition);
}
.skin-card:hover { border-color: rgba(26,159,255,0.5); transform: scale(1.04); }
.skin-card:hover .skin-name { transform: translateY(0); }
.skin-card.selected {
  border-color: var(--clr-orange);
  box-shadow: 0 0 14px var(--clr-orange-glow);
}
.skin-card.selected::after {
  content: '✓';
  position: absolute;
  top: 6px; right: 6px;
  width: 20px; height: 20px;
  background: var(--clr-orange);
  border-radius: 50%;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}

/* ── Order Form ─────────────────────────────────── */
.order-form {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-muted);
}
.field label .req { color: var(--clr-orange); margin-left: 2px; }
.field input,
.field textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--clr-blue);
  box-shadow: 0 0 0 3px var(--clr-blue-glow);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--clr-muted); }

/* Radio group */
.radio-group {
  display: flex;
  gap: 10px;
}
.radio-label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--clr-muted);
  transition: all var(--transition);
  user-select: none;
}
.radio-label input[type="radio"] { display: none; }
.radio-label:has(input:checked) {
  border-color: var(--clr-orange);
  color: var(--clr-orange);
  background: rgba(255,116,0,0.08);
  box-shadow: 0 0 12px var(--clr-orange-glow);
}

/* ── Textarea / Input shared ────────────────────── */
textarea.input-flat,
input.input-flat {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}
textarea.input-flat:focus,
input.input-flat:focus {
  outline: none;
  border-color: var(--clr-blue);
  box-shadow: 0 0 0 3px var(--clr-blue-glow);
}
textarea.input-flat { resize: none; min-height: 80px; }

/* Checkbox */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text);
  user-select: none;
}
.checkbox-row input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--clr-orange);
  cursor: pointer;
}

/* ── Toast Notifications ────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}
.toast {
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  backdrop-filter: blur(16px);
  animation: toastIn 0.3s ease forwards;
  pointer-events: auto;
  max-width: 320px;
  text-align: center;
}
.toast.info    { background: rgba(26,159,255,0.15); border: 1px solid var(--clr-blue); color: var(--clr-blue); }
.toast.success { background: rgba(0,208,132,0.15); border: 1px solid var(--clr-success); color: var(--clr-success); }
.toast.error   { background: rgba(255,64,96,0.15); border: 1px solid var(--clr-error); color: var(--clr-error); }
.toast.out     { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn  { from { opacity:0; transform: translateY(16px); } to { opacity:1; transform: translateY(0); } }
@keyframes toastOut { from { opacity:1; transform: translateY(0); } to { opacity:0; transform: translateY(16px); } }

/* ── Success / Order status page ────────────────── */
.success-page {
  text-align: center;
  padding: 60px 24px;
  max-width: 540px;
  margin: 0 auto;
}
.success-page .success-icon { font-size: 4rem; margin-bottom: 16px; }
.success-page h2 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--clr-success);
  letter-spacing: 0.06em;
}
.success-page .order-num {
  font-family: var(--font-ui);
  font-size: 1.1rem;
  color: var(--clr-muted);
  margin-top: 8px;
  letter-spacing: 0.1em;
}
.code-box {
  margin: 24px auto;
  padding: 20px 28px;
  background: rgba(255,116,0,0.06);
  border: 1px dashed var(--clr-orange);
  border-radius: var(--radius-md);
  max-width: 300px;
}
.code-box .code-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--clr-muted);
  text-transform: uppercase;
}
.code-box .code-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--clr-orange);
  letter-spacing: 0.15em;
  margin-top: 4px;
}
.bot-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 12px 24px;
  border: 2px solid var(--clr-blue);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clr-blue);
  text-decoration: none;
  transition: all var(--transition);
}
.bot-link:hover {
  background: rgba(26,159,255,0.1);
  box-shadow: 0 0 20px var(--clr-blue-glow);
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 640px) {
  .controls { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 340px; justify-content: center; }
  .panel.open { max-height: 85vh; overflow-y: auto; }
  .skins-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ── Utility ────────────────────────────────────── */
.hidden  { display: none !important; }
.sr-only { position: absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }
.text-muted { color: var(--clr-muted); }
.text-orange { color: var(--clr-orange); }
.text-blue { color: var(--clr-blue); }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }

/* ── Background Animation ───────────────────────────────────────────────────── */
/* Slow pan (works best with seamless/tileable image) */
@keyframes bgPan {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Pulse glow flares */
@keyframes flare1 {
  0%, 100% { opacity: 0.05; transform: scale(1); }
  50%       { opacity: 0.18; transform: scale(1.15); }
}
@keyframes flare2 {
  0%, 100% { opacity: 0.03; transform: scale(1); }
  50%       { opacity: 0.12; transform: scale(1.2); }
}
@keyframes flare3 {
  0%, 100% { opacity: 0.07; transform: scale(1.05); }
  60%       { opacity: 0.0;  transform: scale(0.95); }
}

.bg-scene {
  /* Override: add pan animation */
  background-size: 120% auto !important;
  animation: bgPan 40s ease-in-out infinite;
}

/* Animated light flares layered on top of bg */
.bg-scene::before {
  content: '';
  position: absolute;
  width: 60vw; height: 60vw;
  left: -10vw; bottom: -10vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,159,255,0.12) 0%, transparent 70%);
  animation: flare1 8s ease-in-out infinite;
  pointer-events: none;
}

.bg-scene::after {
  /* Override existing ::after — keep gradient overlay but add animation */
  animation: flare2 12s ease-in-out infinite 3s;
}

/* Third flare via extra element — add to HTML */
.bg-flare {
  position: fixed;
  width: 50vw; height: 50vw;
  right: -5vw; top: 10vh;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,116,0,0.08) 0%, transparent 65%);
  animation: flare3 15s ease-in-out infinite 1s;
  pointer-events: none;
  z-index: 0;
}