:root {
  --bg: #070b14;
  --surface: rgba(17, 24, 39, 0.72);
  --surface-strong: rgba(24, 33, 54, 0.9);
  --border: rgba(148, 163, 184, 0.16);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #10b981;
  --success-hover: #059669;
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --radius: 18px;
}

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

body {
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(130px);
  z-index: -1;
  opacity: 0.22;
  pointer-events: none;
}

.bg-glow-1 {
  background: #3b82f6;
  top: -180px;
  left: -140px;
}

.bg-glow-2 {
  background: #10b981;
  bottom: -200px;
  right: -120px;
}

.app-shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.glass-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.35);
}

/* Header */
.top-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
  transition: background 0.3s, box-shadow 0.3s;
}

.pulse-dot.live {
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.25);
}

.top-header h1 {
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 800;
  margin-bottom: 4px;
}

.privacy-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 720px;
}

.privacy-pill-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-chip {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 14px;
  font-size: 0.82rem;
  display: flex;
  gap: 8px;
  align-items: center;
}

.chip-label {
  color: var(--muted);
}

.chip-value {
  font-weight: 700;
}

.chip-value.success {
  color: var(--success);
}

.chip-value.warn {
  color: #fbbf24;
}

/* Workflow bar */
.workflow-bar {
  padding: 12px 16px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.workflow-step span {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  background: rgba(148, 163, 184, 0.16);
}

.workflow-step.active {
  color: #fff;
  background: rgba(59, 130, 246, 0.18);
  border-color: rgba(59, 130, 246, 0.45);
}

.workflow-step.active span {
  background: var(--primary);
}

.workflow-step.done {
  color: #a7f3d0;
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
}

.workflow-step.done span {
  background: var(--success);
  color: #022c22;
}

/* Main Layout */
.main-grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 16px;
  align-items: start;
}

/* Camera Section */
.camera-section {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.status-banner {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
}

.status-off {
  background: rgba(148, 163, 184, 0.14);
  color: #cbd5e1;
  border-color: rgba(148, 163, 184, 0.25);
}

.status-warn {
  background: rgba(245, 158, 11, 0.14);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.35);
}

.status-danger {
  background: rgba(239, 68, 68, 0.14);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.status-ready {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.4);
}

.camera-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.mirror-toggle,
.tool-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  color: var(--muted);
  cursor: pointer;
}

.tool-field select {
  width: auto;
  padding: 6px 10px;
  font-size: 0.82rem;
}

.icon-btn {
  background: rgba(148, 163, 184, 0.14);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.icon-btn:not(:disabled):hover {
  background: rgba(148, 163, 184, 0.26);
}

.icon-btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.85em;
  background: rgba(148, 163, 184, 0.14);
  padding: 1px 6px;
  border-radius: 6px;
}

.viewport-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #030712;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.viewport-wrapper.picking-mode {
  cursor: crosshair;
  border-color: var(--warning);
}

#cameraVideo,
#overlayCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.mirrored {
  transform: scaleX(-1);
}

.viewport-placeholder,
.viewport-error,
.countdown-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 24px;
  background: rgba(7, 11, 20, 0.88);
  z-index: 4;
}

.placeholder-icon,
.error-icon {
  font-size: 2.6rem;
  margin-bottom: 10px;
}

.viewport-placeholder h2 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.viewport-placeholder p {
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 500px;
  line-height: 1.65;
}

.viewport-error h3 {
  color: #f87171;
  margin-bottom: 8px;
}

.viewport-error p {
  color: #fca5a5;
  font-size: 0.9rem;
  max-width: 480px;
  margin-bottom: 14px;
}

.error-guide {
  text-align: left;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.84rem;
  color: var(--text);
}

.error-guide ul {
  margin-left: 18px;
  margin-top: 6px;
  color: var(--muted);
}

.quality-hud {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 3;
}

.q-item {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(2, 6, 23, 0.78);
  border: 1px solid var(--border);
  color: #94a3b8;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.q-item.ok {
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.45);
}

.q-item.bad {
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.45);
}

.cal-overlay-hint {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(245, 158, 11, 0.95);
  color: #111827;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 999px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.mini-cancel-btn {
  background: #111827;
  color: #fff;
  border: none;
  padding: 3px 10px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.76rem;
}

/* Sanoq oynasi (o'lchashdan oldin) */
.countdown-overlay {
  background: rgba(7, 11, 20, 0.55);
  gap: 8px;
}

.countdown-overlay p {
  color: #e2e8f0;
  font-weight: 600;
  font-size: 0.95rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

.countdown-number {
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 800;
  line-height: 1;
  color: #fff;
  text-shadow: 0 0 30px rgba(59, 130, 246, 0.8);
  animation: pop 1s ease-in-out infinite;
}

@keyframes pop {
  0% { transform: scale(0.85); opacity: 0.6; }
  30% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* O'lchash jarayoni — ekranni to'smaydigan banner */
.measuring-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(2, 6, 23, 0.86);
  border: 1px solid rgba(16, 185, 129, 0.45);
  color: var(--text);
  font-size: 0.88rem;
}

.measuring-overlay div {
  flex: 1;
}

.measuring-overlay small {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
  margin-top: 2px;
}

.spinner {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border: 4px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--success);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Controls */
.controls-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #fff;
}

.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none !important;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
}

.btn-primary { background: var(--primary); }
.btn-primary:not(:disabled):hover { background: var(--primary-hover); }

.btn-success { background: var(--success); }
.btn-success:not(:disabled):hover { background: var(--success-hover); }

.btn-secondary {
  background: rgba(148, 163, 184, 0.2);
  border: 1px solid var(--border);
}
.btn-secondary:not(:disabled):hover { background: rgba(148, 163, 184, 0.3); }

.btn-danger { background: var(--danger); }
.btn-danger:not(:disabled):hover { background: var(--danger-hover); }

.btn-outline {
  background: transparent;
  border: 1px solid rgba(59, 130, 246, 0.5);
  color: #60a5fa;
  padding: 9px 12px;
  font-size: 0.82rem;
}

/* Side Panel */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-card,
.calibration-card,
.history-card {
  padding: 18px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.card-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.badge-approx {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.16);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.result-display {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  text-align: center;
  margin-bottom: 12px;
}

.result-number {
  font-size: 2.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #60a5fa, #34d399);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.15;
}

.result-main-text {
  font-weight: 700;
  font-size: 1rem;
  margin-top: 6px;
}

.result-range {
  font-size: 0.83rem;
  color: var(--muted);
  margin-top: 4px;
}

.metrics-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.metric-box {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
}

.m-label {
  font-size: 0.7rem;
  color: var(--muted);
}

.m-val {
  font-size: 0.86rem;
  font-weight: 700;
  margin-top: 2px;
}

.disclaimer-box {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.28);
  border-radius: 12px;
  padding: 11px 13px;
  font-size: 0.8rem;
  color: #fde68a;
  line-height: 1.45;
}

/* Calibration tabs */
.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  background: rgba(15, 23, 42, 0.7);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 14px;
}

.tab-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 8px;
  border-radius: 9px;
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.val-pill {
  background: rgba(59, 130, 246, 0.18);
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
}

select,
input[type="number"] {
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 9px 12px;
  font-family: inherit;
  font-size: 0.88rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}

.input-with-btn {
  display: flex;
  gap: 8px;
}

.help-text {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 5px;
}

/* History */
.text-btn {
  background: none;
  border: none;
  color: #60a5fa;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 0.84rem;
}

.history-empty {
  color: var(--muted);
  font-size: 0.84rem;
  text-align: center;
  padding: 10px;
}

.muted {
  color: var(--muted);
}

/* O'z bo'yi bilan kalibrlash bloki */
.self-cal-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 12px;
  padding: 12px;
}

.self-cal-box > label {
  color: #a7f3d0;
  font-weight: 700;
}

.self-cal-box .btn-outline {
  border-color: rgba(16, 185, 129, 0.6);
  color: #34d399;
  white-space: nowrap;
}

.self-cal-box .text-btn {
  margin-top: 6px;
  color: #f87171;
}

/* Kalibrlash izohi */
.cal-note {
  font-size: 0.76rem;
  color: var(--muted);
  line-height: 1.45;
  min-height: 1.2em;
  margin-top: 4px;
}

/* Maslahatlar */
.tips-box {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.84rem;
  color: var(--muted);
}

.tips-box summary {
  cursor: pointer;
  font-weight: 700;
  color: #93c5fd;
  list-style: none;
}

.tips-box summary::-webkit-details-marker {
  display: none;
}

.tips-box summary::before {
  content: "▸ ";
}

.tips-box[open] summary::before {
  content: "▾ ";
}

.tips-box ul {
  margin: 10px 0 2px 18px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  line-height: 1.5;
}

.tips-box strong {
  color: var(--text);
}

.page-footer {
  text-align: center;
  font-size: 0.76rem;
  color: var(--muted);
  padding: 6px 16px 14px;
}

.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 1080px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  .workflow-bar {
    grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 12px;
  }
  .top-header {
    padding: 16px;
  }
  .controls-bar {
    grid-template-columns: 1fr 1fr;
  }
  .viewport-wrapper {
    aspect-ratio: 3 / 4;
  }
  .cal-overlay-hint {
    white-space: normal;
    width: calc(100% - 24px);
    border-radius: 14px;
    flex-direction: column;
    text-align: center;
  }
  .measuring-overlay {
    flex-wrap: wrap;
  }
  .metrics-mini-grid {
    grid-template-columns: 1fr 1fr;
  }
}