/* ---- Dark theme (default) ---- */
:root, [data-theme="dark"] {
  --bg: #0a0e14;
  --bg-card: #131920;
  --bg-input: #0d1117;
  --border: #1e2733;
  --border-focus: #4c8eda;
  --text: #e2e8f0;
  --text-muted: #6b7b8d;
  --accent: #4c8eda;
  --accent-hover: #6aa3ed;
  --green: #22a44b;
  --green-bg: rgba(52,208,88,0.08);
  --yellow: #d29922;
  --red: #e5534b;
  --purple: #a78bfa;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
  --badge-text: #fff;
}

/* ---- Light theme ---- */
[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --border: #dde1e7;
  --border-focus: #3574b8;
  --text: #1a2332;
  --text-muted: #5f6d7e;
  --accent: #3574b8;
  --accent-hover: #2a5f9e;
  --green: #1a8a3e;
  --green-bg: rgba(26,138,62,0.08);
  --yellow: #b07d18;
  --red: #cf3530;
  --purple: #7c5cbf;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --badge-text: #fff;
}

/* Auto theme based on system preference */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f5f7fa;
    --bg-card: #ffffff;
    --bg-input: #f0f2f5;
    --border: #dde1e7;
    --border-focus: #3574b8;
    --text: #1a2332;
    --text-muted: #5f6d7e;
    --accent: #3574b8;
    --accent-hover: #2a5f9e;
    --green: #1a8a3e;
    --green-bg: rgba(26,138,62,0.08);
    --yellow: #b07d18;
    --red: #cf3530;
    --purple: #7c5cbf;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
    --badge-text: #fff;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Header ---- */
header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}
nav { display: flex; gap: 4px; margin-right: auto; }
.nav-link {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: 0.15s;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--accent); background: rgba(76,142,218,0.08); }
.header-right { display: flex; align-items: center; gap: 12px; }
#printer-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.03);
}
.dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.dot.online { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot.offline { background: var(--red); }
.dot.printing { background: var(--yellow); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

.hidden { display: none !important; }

/* ---- Buttons ---- */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: 0.15s;
  font-family: inherit;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { background: var(--border); color: var(--text-muted); cursor: not-allowed; }
.btn-ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
  transition: 0.15s;
}
.btn-ghost:hover { border-color: var(--text-muted); color: var(--text); }
.btn-accent-sm {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 5px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

/* ---- Hero ---- */
#hero {
  background: linear-gradient(135deg, rgba(76,142,218,0.08) 0%, rgba(167,139,250,0.05) 100%);
  border-bottom: 1px solid var(--border);
  padding: 40px 20px;
  text-align: center;
}
.hero-inner { max-width: 520px; margin: 0 auto; }
#hero h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 8px; }
#hero p { color: var(--text-muted); font-size: 0.95rem; }

/* ---- Steps Bar ---- */
.steps-bar {
  display: flex;
  gap: 2px;
  max-width: 800px;
  margin: 24px auto 0;
  padding: 0 20px;
}
.stp {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border-radius: 8px;
  transition: 0.2s;
}
.stp:first-child { border-radius: 8px 0 0 8px; }
.stp:last-child { border-radius: 0 8px 8px 0; }
.stp-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}
.stp.active { color: var(--text); }
.stp.active .stp-num { background: var(--accent); color: #fff; }
.stp.done .stp-num { background: var(--green); color: #fff; }

/* ---- Main ---- */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 20px 60px;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 1.05rem; font-weight: 600; margin-bottom: 16px; }
.card h3 { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); margin-bottom: 12px; }

/* ---- Dropzone ---- */
#dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
#dropzone:hover, #dropzone.dragover {
  border-color: var(--accent);
  background: rgba(76,142,218,0.04);
}
#dropzone p { font-size: 0.9rem; }
#dropzone .link { color: var(--accent); cursor: pointer; }
.hint { font-size: 0.8rem; color: var(--text-muted); }
.hint a { color: var(--accent); }

#file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--green-bg);
  border: 1px solid rgba(52,208,88,0.15);
  border-radius: var(--radius);
  margin-top: 12px;
}
.file-badge { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* ---- Profiles ---- */
#profiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.profile-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: 0.15s;
}
.profile-card:hover { border-color: var(--accent); }
.profile-card.selected { border-color: var(--accent); background: rgba(76,142,218,0.06); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.profile-card h3 { font-size: 0.9rem; margin: 0 0 4px; color: var(--text); }
.profile-card p { font-size: 0.78rem; color: var(--text-muted); margin: 0 0 8px; }
.profile-card .specs { font-size: 0.72rem; color: var(--text-muted); opacity: 0.7; }

/* Printer list with materials */
#printers-list { display: grid; gap: 12px; }
.printer-block {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: 0.15s;
}
.printer-block.selected { border-color: var(--accent); background: rgba(76,142,218,0.04); }
.printer-block .pb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.printer-block .pb-name { font-size: 0.95rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.printer-block .pb-info { font-size: 0.75rem; color: var(--text-muted); }
.printer-block .pb-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.03);
  color: var(--text-muted);
}
.printer-block .pb-materials { display: flex; flex-wrap: wrap; gap: 8px; }
.printer-block .pb-empty { font-size: 0.8rem; color: var(--text-muted); padding: 8px; }
.printer-block .pb-warning {
  font-size: 0.82rem;
  padding: 10px 14px;
  background: rgba(227,179,65,0.08);
  border: 1px solid rgba(227,179,65,0.2);
  border-radius: 8px;
  color: var(--yellow);
  margin-bottom: 12px;
}
.printer-block .pb-warning.info {
  background: rgba(76,142,218,0.06);
  border-color: rgba(76,142,218,0.2);
  color: var(--accent);
}
.printer-block.disabled {
  opacity: 0.7;
}

/* Material types grid */
.material-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}
.mat-type-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  transition: 0.15s;
  text-align: center;
}
.mat-type-card:hover { border-color: var(--accent); }
.mat-type-card.selected { border-color: var(--accent); background: rgba(76,142,218,0.06); box-shadow: 0 0 0 1px var(--accent); }
.mat-type-card .mt-name { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.mat-type-card .mt-price { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 8px; }
.mat-type-card .mt-stock { font-size: 0.7rem; color: var(--text-muted); padding: 3px 8px; border-radius: 12px; background: rgba(255,255,255,0.04); display: inline-block; }
.mat-type-card .mt-stock.available { color: var(--green); background: rgba(52,208,88,0.1); }
.mat-type-card.no-stock { opacity: 0.85; }

.color-no-stock {
  background: rgba(227,179,65,0.05);
  border: 1px dashed rgba(227,179,65,0.3);
  border-radius: 10px;
  padding: 16px;
}
.color-no-stock p { font-size: 0.85rem; margin-bottom: 8px; }
.color-no-stock input { width: 100%; margin-top: 8px; }

/* Color picker grid */
.color-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.color-chip {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 8px 10px; border-radius: 8px; border: 2px solid var(--border);
  cursor: pointer; transition: 0.15s; min-width: 72px; text-align: center;
}
.color-chip:hover { border-color: var(--accent); }
.color-chip.selected { border-color: var(--accent); background: rgba(76,142,218,0.08); box-shadow: 0 0 0 1px var(--accent); }
.color-swatch {
  width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15); flex-shrink: 0;
}
.color-chip .cc-type { font-size: 0.72rem; font-weight: 600; }
.color-chip .cc-info { font-size: 0.65rem; color: var(--text-muted); }
.color-chip .cc-remain { font-size: 0.62rem; color: var(--text-muted); }
.color-chip .cc-source { font-size: 0.58rem; color: var(--text-muted); opacity: 0.6; }

#custom-params { margin-bottom: 16px; }
#custom-params summary {
  cursor: pointer;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 12px;
}

/* ---- Forms ---- */
.input-group { margin-bottom: 12px; }
.input-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 4px;
}
input, select, textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--text);
  font-size: 0.88rem;
  font-family: inherit;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }
.params-form { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; margin-bottom: 12px; }

/* ---- Quote ---- */
.quote-table { margin-bottom: 4px; }
.qt-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.qt-row:last-child { border-bottom: none; }
.qt-row.bold { font-weight: 600; }
/* Quantity info */
.qty-info {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.qty-info.fits { background: rgba(52,208,88,0.08); border: 1px solid rgba(52,208,88,0.2); color: var(--green); }
.qty-info.no-fit { background: rgba(248,81,73,0.08); border: 1px solid rgba(248,81,73,0.2); color: var(--red); }
.qty-info svg { flex-shrink: 0; }

.qt-row.total {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--green);
  border-top: 2px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
}

/* ---- Shipping ---- */
#shipping-options { display: grid; gap: 8px; }
.ship-option {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  cursor: pointer;
  transition: 0.15s;
}
.ship-option:hover { border-color: var(--accent); }
.ship-option.selected { border-color: var(--accent); background: rgba(76,142,218,0.04); }
.ship-option input[type=radio] { accent-color: var(--accent); }
.ship-option .ship-name { flex: 1; font-size: 0.88rem; }
.ship-option .ship-name span { font-size: 0.72rem; color: var(--text-muted); }
.ship-option .ship-price { font-weight: 700; font-size: 0.9rem; }

/* ---- 3D Preview ---- */
#preview-container {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  min-height: 400px;
}
#preview-3d { width: 100%; min-height: 400px; }
#preview-3d canvas { display: block; }
#preview-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}
#preview-controls {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* ---- Payment ---- */
.pay-total { font-size: 1.1rem; margin-bottom: 16px; }
#stripe-element {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}
.stripe-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.7;
}
.error {
  color: var(--red);
  font-size: 0.82rem;
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(248,81,73,0.08);
  border-radius: 8px;
}

/* ---- Status ---- */
.status-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.status-header h2 { margin-bottom: 0; }
.status-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sg-item { display: flex; flex-direction: column; gap: 4px; }
.sg-wide { grid-column: 1 / -1; }
.sg-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }
.sg-value { font-size: 0.95rem; font-weight: 600; }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--border);
  width: fit-content;
}
.badge.queued { background: rgba(210,153,34,0.15); color: var(--yellow); }
.badge.awaiting_material { background: rgba(210,153,34,0.15); color: var(--yellow); }
.badge.printing { background: rgba(76,142,218,0.15); color: var(--accent); }
.badge.uploading { background: rgba(76,142,218,0.1); color: var(--accent); }
.badge.done { background: rgba(34,164,75,0.15); color: var(--green); }
.badge.shipped { background: rgba(124,92,191,0.15); color: var(--purple); }
.badge.failed { background: rgba(229,83,75,0.15); color: var(--red); }
.badge.cancelled { background: var(--border); color: var(--text-muted); }
.progress-bar { height: 24px; background: var(--border); border-radius: 12px; overflow: hidden; width: 100%; }
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--green));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  transition: width 0.5s;
  padding: 0 8px;
  min-width: fit-content;
}
canvas { width: 100%; border-radius: var(--radius); background: var(--bg); display: block; }

/* ---- Dashboard ---- */
.order-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}
.order-card:last-child { border-bottom: none; }
.oc-info { font-size: 0.85rem; line-height: 1.6; }
.oc-info strong { color: var(--text); }
.oc-info a { color: var(--accent); }
.oc-actions { display: flex; gap: 6px; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 90%;
  max-width: 400px;
  position: relative;
  box-shadow: var(--shadow-lg);
}
.modal h2 { font-size: 1.15rem; margin-bottom: 20px; }
.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}
.modal-switch { text-align: center; margin-top: 14px; font-size: 0.82rem; color: var(--text-muted); }
.modal-switch a { color: var(--accent); text-decoration: none; }

/* ---- Theme toggle ---- */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.15s;
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(76,142,218,0.06);
}
.theme-toggle svg { width: 18px; height: 18px; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root:not([data-theme]) .theme-toggle .icon-sun { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme]) .theme-toggle .icon-moon { display: none; }
}

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .form-grid, .params-form { grid-template-columns: 1fr; }
  #profiles-grid { grid-template-columns: 1fr; }
  .header-inner { gap: 12px; }
  nav { display: none; }
  .steps-bar { font-size: 0.7rem; }
  .stp { padding: 8px 8px; gap: 4px; }
  .status-grid { grid-template-columns: 1fr; }
  #hero { padding: 28px 16px; }
  #hero h1 { font-size: 1.3rem; }
}
@media (max-width: 380px) {
  .steps-bar { flex-wrap: wrap; }
  .stp { border-radius: 6px !important; }
}