/* ── Design System: سامانه انبار هوشمند ایزوگام ──
 * Style: Dark OLED + Industrial Dashboard
 * Palette: Deep midnight #05080f → #0a0e1a with indigo/violet accents
 * Typography: Vazirmatn (Persian-optimized)
 * Icons: Inline SVG (no emoji as structural icons)
 */

:root {
  /* Core */
  --bg-deep: #03050b;
  --bg: #080c18;
  --bg2: #0e1425;
  --surface: #111827;
  --surface2: #1a2236;
  --elevated: #1e293b;

  /* Borders */
  --border: #1e2a4a;
  --border2: #2e3a5e;

  /* Text */
  --ink: #eef2fa;
  --ink2: #94a3b8;
  --muted: #5c6f92;
  --text: #eef2fa;

  /* Accent - Indigo/Violet gradient */
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-light: #a78bfa;
  --accent-dim: rgba(124, 58, 237, 0.12);
  --accent-glow: rgba(124, 58, 237, 0.3);
  --accent-gradient: linear-gradient(135deg, #7c3aed, #6366f1, #a78bfa);

  /* Semantic */
  --success: #10b981;
  --success-dim: rgba(16, 185, 129, 0.12);
  --danger: #f43f5e;
  --danger-dim: rgba(244, 63, 94, 0.12);
  --warn: #f59e0b;
  --warn-dim: rgba(245, 158, 11, 0.12);
  --info: #6366f1;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 60px rgba(0, 0, 0, 0.55);
  --shadow-2xl: 0 20px 80px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.15);

  /* Header */
  --header-bg: rgba(17, 24, 39, 0.55);
  --header-border: rgba(255, 255, 255, 0.06);
  --header-inset: rgba(255, 255, 255, 0.03);

  /* Sidebar */
  --sidebar-bg: rgba(17, 24, 39, 0.8);
  --sidebar-border: var(--border);

  /* Nav */
  --nav-bg: rgba(3, 5, 11, 0.85);

  /* Timing */
  --duration: 0.2s;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Typography scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
}

[data-theme="light"] {
  --bg-deep: #f1f5f9;
  --bg: #f8fafc;
  --bg2: #eef1f7;
  --surface: #ffffff;
  --surface2: #f1f5f9;
  --elevated: #e2e8f0;
  --border: #dce0ea;
  --border2: #c8cedc;
  --ink: #0f172a;
  --ink2: #475569;
  --muted: #64748b;
  --text: #0f172a;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-light: #8b5cf6;
  --accent-dim: rgba(124, 58, 237, 0.08);
  --accent-glow: rgba(124, 58, 237, 0.12);
  --accent-gradient: linear-gradient(135deg, #7c3aed, #6366f1, #a78bfa);
  --success-dim: rgba(16, 185, 129, 0.08);
  --danger-dim: rgba(244, 63, 94, 0.08);
  --warn-dim: rgba(245, 158, 11, 0.08);
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 12px 60px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 20px 80px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.08);

  /* Header */
  --header-bg: rgba(255, 255, 255, 0.8);
  --header-border: rgba(0, 0, 0, 0.06);
  --header-inset: rgba(255, 255, 255, 0.7);

  /* Sidebar */
  --sidebar-bg: rgba(255, 255, 255, 0.85);
  --sidebar-border: var(--border);

  /* Nav */
  --nav-bg: rgba(248, 250, 252, 0.9);
}

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

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border2) var(--bg);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Vazirmatn", system-ui, -apple-system, sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.7;
  direction: rtl;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent-gradient);
  color: #fff;
  padding: 8px 16px;
  z-index: 10000;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) 0;
  transition: top var(--duration) var(--ease);
}
.skip-link:focus {
  top: 0;
}

/* ── Glass effects ── */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.glass-light {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 12px var(--accent-glow));
}

/* ── Hover effects ── */
.hover-lift {
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.hover-lift:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-xl);
}

.focus-ring:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 6px var(--accent-dim);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Layout ── */
.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) var(--space-12);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding: var(--space-3) var(--space-5);
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--header-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm), inset 0 1px 0 var(--header-inset);
  min-height: 60px;
  position: relative;
  z-index: 200;
}

.app-header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.app-header-brand h1 {
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.app-header-brand .subtitle {
  display: none;
  font-size: var(--text-xs);
  color: var(--muted);
}

@media (min-width: 640px) {
  .app-header-brand .subtitle {
    display: block;
  }
}

.app-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-header-actions .active,
.app-header-actions a.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ── Account menu ── */
.account-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.account-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem 0.35rem 0.45rem;
  border-radius: var(--radius-full);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--ink);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  max-width: 220px;
  transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.account-trigger:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.account-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
}

.account-avatar.lg {
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
}

.account-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-dropdown {
  position: absolute;
  top: calc(100% + 0.6rem);
  left: 0;
  z-index: 300;
  width: 260px;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg, 0 16px 40px rgba(0, 0, 0, 0.35));
  animation: accountIn 0.18s var(--ease);
}

@keyframes accountIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.account-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.6rem 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.4rem;
}

.account-meta {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.account-meta strong {
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.account-meta span {
  font-size: 0.78rem;
  color: var(--ink2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.account-items {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.account-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: right;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.account-item:hover {
  background: var(--surface2);
}

.account-item.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.account-item.danger {
  color: var(--danger, #ef4444);
}

.account-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

@media (max-width: 720px) {
  .account-name { display: none; }
  .account-dropdown { width: 240px; }
}

.user-bar {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  align-items: center;
  margin-top: var(--space-4);
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface2);
  color: var(--text);
  font-size: var(--text-sm);
}

/* ── Grid ── */
.grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .grid {
    grid-template-columns: 340px 1fr 280px;
    align-items: start;
  }
}

@media (max-width: 1200px) {
  .grid {
    grid-template-columns: 340px 1fr;
  }
  .tools-panel {
    display: none;
  }
}

/* ── Panel ── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm), inset 0 1px 0 var(--header-inset);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.panel:hover {
  border-color: var(--border2);
  box-shadow: var(--shadow-md);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

.panel-glass {
  background: rgba(17, 24, 39, 0.6);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.tools-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.tools-panel .accordion-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tools-panel .accordion-header {
  background: var(--surface);
  border: none;
  border-radius: var(--radius-lg);
  min-height: 44px;
}

.tools-panel .accordion-section.open .accordion-header {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: transparent;
}

.tools-panel .accordion-body {
  padding: var(--space-3) var(--space-4) var(--space-4);
}

.tools-panel .tool-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  padding: var(--space-3) var(--space-4) var(--space-4);
}

.tools-panel .tool-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 var(--space-1);
}

@media (max-width: 1200px) {
  .tools-panel {
    display: none;
  }
}

.panel-section-title {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

/* ── Dropzone ── */
.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-10) var(--space-4);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  text-align: center;
  color: var(--muted);
  margin-bottom: var(--space-5);
  background: rgba(17, 24, 39, 0.4);
  min-height: 160px;
  justify-content: center;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--text);
  box-shadow: 0 0 40px var(--accent-glow);
  transform: scale(1.01);
}

.file-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dz-icon svg {
  opacity: 0.5;
  transition: opacity var(--duration) var(--ease);
}

.dropzone:hover .dz-icon svg,
.dropzone.dragover .dz-icon svg {
  opacity: 1;
}

/* ── Forms ── */
.field {
  margin-bottom: var(--space-4);
}

.field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
  margin-bottom: var(--space-2);
  transition: color var(--duration) var(--ease);
}

.field:focus-within label {
  color: var(--accent);
}

.field .field-error {
  color: var(--danger);
  font-size: var(--text-sm);
  margin-top: var(--space-1);
  display: none;
}
.field.has-error .field-error {
  display: block;
}
.field.has-error input,
.field.has-error select {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px var(--danger-dim);
}
.field.has-error label {
  color: var(--danger);
}

body input:not([type="range"]):not([type="checkbox"]):not([type="radio"]):not([type="file"]),
body select,
body textarea {
  background: var(--bg);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--text-base);
  outline: none;
  width: 100%;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease), background var(--duration) var(--ease);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  -webkit-appearance: none;
  appearance: none;
  line-height: 1.5;
}

body input:not([type="range"]):not([type="checkbox"]):not([type="radio"]):not([type="file"]):hover,
body select:hover,
body textarea:hover {
  border-color: var(--border2);
  background: var(--surface);
}

body input:not([type="range"]):not([type="checkbox"]):not([type="radio"]):not([type="file"]):focus,
body select:focus,
body textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim), 0 1px 3px rgba(0, 0, 0, 0.2);
  background: var(--surface);
}

body input::placeholder,
body textarea::placeholder {
  color: var(--muted);
  opacity: 0.45;
  font-weight: 400;
}

body input:disabled,
body select:disabled,
body textarea:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: var(--bg2);
}

body select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c6f92' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 0.9rem center;
  padding-left: 2.2rem;
  cursor: pointer;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  height: 6px;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
  border-radius: 0;
}
input[type="range"]:focus {
  box-shadow: none;
  border-color: transparent;
}

input[type="checkbox"] {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  cursor: pointer;
  border-radius: var(--radius-xs);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  position: relative;
  overflow: hidden;
  min-height: 44px;
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.btn.primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn.primary:hover:not(:disabled) {
  box-shadow: 0 6px 28px var(--accent-glow);
  transform: translateY(-1px);
}
.btn.primary:active:not(:disabled) {
  transform: scale(0.97) translateY(0);
}

.btn.success {
  background: var(--success);
  color: #fff;
  box-shadow: 0 4px 16px var(--success-dim);
}
.btn.success:hover:not(:disabled) {
  box-shadow: 0 6px 28px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

.btn.danger {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 4px 16px var(--danger-dim);
}
.btn.danger:hover:not(:disabled) {
  box-shadow: 0 6px 28px rgba(244, 63, 94, 0.35);
  transform: translateY(-1px);
}

.btn.secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.secondary:hover:not(:disabled) {
  background: var(--elevated);
  border-color: var(--border2);
  transform: translateY(-1px);
}

.btn.small {
  width: auto;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* Key-style buttons (3D mechanical) */
.btn-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  box-shadow: var(--shadow-sm);
  line-height: 1;
  position: relative;
}

.btn-key:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: none;
}

.btn-key.key-success {
  background: var(--success);
  color: #fff;
  box-shadow: 0 3px 0 #059669, var(--shadow-sm);
}
.btn-key.key-success:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 #059669, var(--shadow-md);
}
.btn-key.key-success:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: 0 1px 0 #059669;
}

.btn-key.key-danger {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 3px 0 #e11d48, var(--shadow-sm);
}
.btn-key.key-danger:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 #e11d48, var(--shadow-md);
}
.btn-key.key-danger:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: 0 1px 0 #e11d48;
}

.btn-key.key-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 3px 0 var(--border), var(--shadow-xs);
}
.btn-key.key-secondary:hover:not(:disabled) {
  background: var(--elevated);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 var(--border2), var(--shadow-sm);
}
.btn-key.key-secondary:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: 0 1px 0 var(--border);
}

.btn-key.key-accent {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 3px 0 #5b21b6, var(--shadow-sm);
}
.btn-key.key-accent:hover:not(:disabled) {
  box-shadow: 0 4px 0 #5b21b6, var(--shadow-md);
  transform: translateY(-1px);
}
.btn-key.key-accent:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: 0 1px 0 #5b21b6;
}

.btn-key.key-warning {
  background: var(--warn);
  color: #1a1a2e;
  box-shadow: 0 3px 0 #d97706, var(--shadow-sm);
}
.btn-key.key-warning:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 #d97706, var(--shadow-md);
}
.btn-key.key-warning:active:not(:disabled) {
  transform: translateY(1px) scale(0.97);
  box-shadow: 0 1px 0 #d97706;
}

.btn-key.wide {
  width: 100%;
  min-width: 0;
}

.link-btn {
  background: transparent;
  border: none;
  color: var(--accent);
  font-family: inherit;
  font-size: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  transition: color var(--duration) var(--ease);
  min-height: auto;
  min-width: auto;
}
.link-btn:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

[disabled],
.disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

button {
  min-height: 44px;
  min-width: 44px;
}

.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
  padding: 0;
}
.theme-toggle:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

/* ── Auth ── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.auth-page::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(124, 58, 237, 0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(99, 102, 241, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
}

.auth-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg);
}

.auth-tab {
  flex: 1;
  padding: 0.75rem 0.5rem;
  text-align: center;
  background: transparent;
  color: var(--ink2);
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--duration) var(--ease);
  font-family: inherit;
}

.auth-tab:hover {
  color: var(--ink);
  background: var(--accent-dim);
}

.auth-tab.active {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-form .field span {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
  margin-bottom: var(--space-2);
}

/* ── Status ── */
.status {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--muted);
  min-height: 1.25rem;
}
.status.error {
  color: var(--danger);
}
.status.ok {
  color: var(--success);
}

/* ── Progress ── */
.progress-wrap {
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  width: 0%;
  transition: width 0.2s var(--ease);
  border-radius: var(--radius-full);
}

.progress-text {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--muted);
}

/* ── Preview ── */
.preview-wrap {
  position: relative;
  min-height: 400px;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
  border: 1px solid var(--border);
  transition: border-color var(--duration) var(--ease);
}

.stage {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transform-origin: 0 0;
}

.stage img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  display: block;
  object-fit: contain;
}

/* ── Zoom modal ── */
.zoom-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.zoom-modal.hidden {
  display: none;
}
.zoom-modal img {
  max-width: 95vw;
  max-height: 95vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
}
.zoom-modal-close {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration) var(--ease);
}
.zoom-modal-close:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ── Video ── */
.video-review {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-4);
  border-top: 1px solid var(--border);
  padding-top: var(--space-4);
}

.video-player {
  width: 100%;
  max-height: min(60vh, 540px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #000;
}

/* ── Run meta ── */
.run-meta {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.meta-label {
  color: var(--muted);
  font-size: var(--text-sm);
}

.meta-hint {
  color: var(--muted);
  font-size: var(--text-sm);
}

/* ── Zoom tools ── */
.zoom-tools {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.zoom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.zoom-label {
  color: var(--muted);
  font-size: var(--text-sm);
}

.zoom-hint {
  color: var(--muted);
  font-size: var(--text-sm);
}

/* ── Crop / Draw canvases ── */
.crop-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  z-index: 10;
  touch-action: none;
}
.crop-canvas.active {
  cursor: crosshair;
}

.draw-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  z-index: 20;
  touch-action: none;
}
.draw-canvas.active {
  cursor: crosshair;
}

.draw-tools {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.draw-hint {
  color: var(--muted);
  font-size: var(--text-sm);
}

/* ── Image tools ── */
.image-tools-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-top: 0.75rem;
}

.image-tools-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.image-tools-row + .image-tools-row {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.tool-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink2);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  font-family: inherit;
  white-space: nowrap;
  min-height: 36px;
  min-width: 36px;
}

.tool-chip:hover {
  background: var(--elevated);
  border-color: var(--border2);
  color: var(--ink);
  transform: translateY(-1px);
  box-shadow: var(--shadow-xs);
}

.tool-chip:active {
  transform: translateY(0);
}

.tool-chip.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.tool-slider {
  flex: 1;
  min-width: 110px;
}

.tool-slider label {
  font-size: 0.75rem;
  color: var(--ink2);
  margin-bottom: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
}

.tool-select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 0.4rem 2.2rem 0.4rem 0.7rem;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%238fa3c4' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 0.6rem center;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
  min-height: 36px;
}

.tool-select:hover {
  border-color: var(--accent);
  background: var(--elevated);
}

.tool-hint {
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.4rem;
  display: block;
}

/* ── Summary / Stat cards ── */
.summary {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.summary.compact {
  margin-top: 0;
}

.total-card {
  background: linear-gradient(135deg, var(--surface), var(--bg2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-6);
  text-align: center;
  min-width: 100px;
}

.total-card .label {
  display: block;
  font-size: var(--text-xs);
  color: var(--muted);
}
.total-card .value {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--success);
  line-height: 1.2;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  transition: all var(--duration) var(--ease);
}

.stat-card:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-card .stat-icon {
  font-size: 1.6rem;
  line-height: 1;
  opacity: 0.7;
}
.stat-card:hover .stat-icon {
  opacity: 1;
}

.stat-card .k {
  display: block;
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card .v {
  display: block;
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
}

.stat-card.accent-blue .v { color: var(--accent-light); }
.stat-card.accent-green .v { color: var(--success); }
.stat-card.accent-amber .v { color: var(--warn); }
.stat-card.accent-red .v { color: var(--danger); }
.stat-card.accent-purple .v { color: #a78bfa; }

.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--ink2);
  margin-top: 0.1rem;
}

/* ── Admin ── */
.admin-grid {
  display: grid;
  gap: var(--space-6);
}

.admin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
  padding: var(--space-1);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  min-height: 44px;
  min-width: 44px;
}
.tab-btn:hover {
  color: var(--text);
  background: var(--accent-dim);
}
.tab-btn.active {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 2px 16px var(--accent-glow);
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

/* ── Tables ── */
.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
}

.table-wrap table {
  min-width: 760px;
  width: 100%;
  border-collapse: collapse;
}

thead tr:first-child th {
  position: sticky;
  top: 0;
  background: var(--bg2);
  z-index: 1;
  padding: var(--space-3) var(--space-4);
  text-align: right;
  color: var(--muted);
  font-weight: 700;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--border);
}

tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: var(--text-sm);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.015);
}

tbody tr:hover {
  background: var(--accent-dim);
}

.low-stock-row {
  background: rgba(244, 63, 94, 0.06) !important;
}

.low-stock-badge {
  display: inline-block;
  background: var(--danger);
  color: #fff;
  font-size: var(--text-xs);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-right: 4px;
  vertical-align: middle;
  font-weight: 600;
}

/* ── System info ── */
.system-info-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-4);
}
.system-info-card:hover {
  border-color: var(--border2);
}

.system-info-card .sys-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--border);
}
.system-info-card .sys-row:last-child {
  border-bottom: none;
}
.system-info-card .sys-label {
  color: var(--muted);
}
.system-info-card .sys-value {
  color: var(--text);
  font-weight: 500;
}

/* ── Video grid details ── */
.video-grid-details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-5);
  margin-top: var(--space-2);
}
.video-grid-details h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--text);
  font-size: var(--text-lg);
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-3);
}
.video-grid-details h5 {
  margin: 0 0 var(--space-3) 0;
  color: var(--muted);
  font-size: var(--text-sm);
  font-weight: 600;
}

.grid-tables-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.grid-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.grid-table th {
  border-bottom: 2px solid var(--border);
  padding: var(--space-2) var(--space-1);
  text-align: center;
  color: var(--text);
  font-weight: 600;
}
.grid-table td {
  padding: var(--space-2) var(--space-1);
  text-align: center;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.grid-table tr:hover td {
  background: var(--accent-dim);
}

/* ── Accordion ── */
.accordion {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.accordion-section {
  border: 1px solid transparent;
  border-radius: var(--radius);
  overflow: hidden;
  background: transparent;
}
.accordion-section.open {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
  -webkit-user-select: none;
  user-select: none;
  min-height: 48px;
}

.accordion-section.open .accordion-header {
  border-radius: var(--radius) var(--radius) 0 0;
  background: transparent;
  border-color: transparent;
}

.accordion-header:hover {
  border-color: var(--border2);
}

.accordion-icon {
  font-size: var(--text-lg);
  line-height: 1;
  opacity: 0.8;
}

.accordion-section.open .accordion-icon {
  opacity: 1;
}

.accordion-arrow {
  margin-left: auto;
  transition: transform var(--duration) var(--ease);
  color: var(--muted);
  line-height: 1;
  font-size: var(--text-xs);
}
.accordion-section.open .accordion-arrow {
  transform: rotate(180deg);
  color: var(--accent);
}

.accordion-body {
  display: none;
  padding: var(--space-1) var(--space-4) var(--space-4);
}
.accordion-section.open .accordion-body {
  display: block;
}
.accordion-body .field:last-child {
  margin-bottom: 0;
}

/* ── Chips ── */
.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.chips li {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
}

/* ── Details ── */
.details {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
}
.details summary {
  cursor: pointer;
  color: var(--accent);
  margin-bottom: var(--space-2);
  font-weight: 600;
}

.placeholder {
  color: var(--muted);
  padding: var(--space-8);
  text-align: center;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: end;
  margin: var(--space-3) 0 var(--space-4);
}
.toolbar .field {
  margin-bottom: 0;
  min-width: 180px;
}

.crop {
  margin-top: var(--space-3);
  border-top: 1px solid var(--border);
  padding-top: var(--space-4);
}

.crop-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-2);
}

.crop-hint {
  display: block;
  color: var(--muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

.confirm {
  margin-top: var(--space-4);
  border-top: 1px solid var(--border);
  padding-top: var(--space-4);
}

.confirm-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.driver-approve {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

/* ── SVG Icons (inline) ── */
.icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 24px; height: 24px; }
.icon-xl { width: 32px; height: 32px; }

/* ── Tooltip ── */
.tooltip {
  position: relative;
}
.tooltip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--elevated);
  color: var(--ink);
  font-size: var(--text-xs);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration) var(--ease);
  border: 1px solid var(--border);
}
.tooltip:hover::after {
  opacity: 1;
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
}
.badge-success {
  background: var(--success-dim);
  color: var(--success);
}
.badge-danger {
  background: var(--danger-dim);
  color: var(--danger);
}
.badge-warning {
  background: var(--warn-dim);
  color: var(--warn);
}
.badge-accent {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ── Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface2) 0%, var(--elevated) 50%, var(--surface2) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

/* ── Loading screen ── */
.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ── Landing page ── */
.landing-page {
  position: relative;
  overflow: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.dark .nav-wrap {
  background: rgba(15, 23, 42, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink);
  cursor: pointer;
  transition: all 150ms var(--ease);
}

.nav-toggle:hover {
  background: var(--surface2);
  border-color: var(--border2);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-menu {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border);
}

.nav-menu a {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 150ms var(--ease);
}

.nav-menu a:hover {
  background: var(--surface2);
  border-color: var(--border2);
  transform: translateY(-1px);
}

.nav-menu .btn-key {
  justify-content: center;
  width: 100%;
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu.open {
    display: flex;
    animation: slideDown 200ms ease-out;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-links a,
.nav-link-key {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink2);
  text-decoration: none;
  transition: all 150ms var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid transparent;
}

.nav-link-key {
  background: var(--surface);
  border-color: var(--border);
  font-weight: 600;
}

.nav-link-key:hover {
  background: var(--surface2);
  border-color: var(--border2);
  color: var(--ink);
  transform: translateY(-1px);
}

.nav-link-key:focus-visible,
.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-links a:hover {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--border);
}

.nav-links .btn-key {
  min-height: 44px;
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.nav-links .btn-key:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink);
  cursor: pointer;
  transition: all 150ms var(--ease);
}

.theme-toggle:hover {
  background: var(--surface2);
  border-color: var(--border2);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 720px) {
  .nav-links .btn-key {
    width: 100%;
    justify-content: center;
  }
  .theme-toggle {
    width: 100%;
  }
}

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #7c3aed 0%, #6366f1 40%, #a78bfa 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--ink2);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  justify-content: center;
  margin-top: 4.5rem;
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-full);
  padding: 0.45rem 1.3rem;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: badgePulse 2s infinite;
}

@keyframes badgePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 2rem;
  text-align: center;
}

.group-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  margin-bottom: 2rem;
}

.group-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.25);
}

.features {
  padding: 5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.feature-card {
  padding: 2rem;
  text-align: center;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all var(--duration) var(--ease);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.1);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--ink2);
  line-height: 1.65;
}

.guide {
  padding: 3rem 0 5rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.step-card {
  padding: 2rem 1.5rem 1.8rem;
  text-align: center;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all var(--duration) var(--ease);
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: var(--border2);
}

.step-number {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  box-shadow: 0 0 20px var(--accent-glow);
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.step-card p {
  font-size: 0.87rem;
  color: var(--ink2);
}

.cta {
  padding: 2rem 0 5rem;
}

.cta-box {
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(16px);
}

.cta-box h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.cta-box p {
  color: var(--ink2);
  margin-bottom: 2rem;
  font-size: 1rem;
}

.landing-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--ink2);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 0.8rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink2);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.footer-links a:hover {
  color: var(--ink);
}

/* ── Landing page dark mode refinements ── */
.landing-page {
  background: var(--bg-deep);
}

.hero {
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124,58,237,0.12) 0%, transparent 60%),
              radial-gradient(ellipse 60% 50% at 80% 20%, rgba(99,102,241,0.08) 0%, transparent 55%),
              var(--bg-deep);
}

.hero-sub {
  color: var(--ink2);
  opacity: 0.95;
}

[data-theme="dark"] .hero-sub {
  color: #cbd5e1;
}

.feature-card p,
.step-card p,
.cta-box p {
  color: var(--ink2);
}

[data-theme="dark"] .feature-card p,
[data-theme="dark"] .step-card p,
[data-theme="dark"] .cta-box p {
  color: #94a3b8;
}

[data-theme="dark"] .feature-card {
  background: var(--surface);
  border-color: var(--border);
}

[data-theme="dark"] .step-card {
  background: linear-gradient(180deg, rgba(30,41,59,0.6) 0%, var(--surface) 100%);
  border-color: var(--border);
}

[data-theme="dark"] .cta-box {
  background: linear-gradient(180deg, rgba(30,41,59,0.7) 0%, var(--surface) 100%);
  border-color: var(--border2);
  box-shadow: 0 8px 40px rgba(0,0,0,0.35), 0 0 0 1px rgba(124,58,237,0.08);
}

[data-theme="dark"] .section-title {
  color: var(--ink);
}

[data-theme="dark"] .landing-footer {
  color: var(--ink2);
  border-top-color: var(--border);
}

[data-theme="dark"] .footer-links a {
  color: var(--ink2);
}

.hero-canvas {
  opacity: 0.6;
}

[data-theme="dark"] .hero-canvas {
  opacity: 0.9;
}

/* ── Admin shell ── */
.admin-shell {
  display: flex;
  min-height: 100vh;
  background: var(--bg-deep);
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--sidebar-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--sidebar-border);
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  overflow: hidden;
  width: 240px;
  transition: width 0.3s var(--ease);
}

.admin-sidebar.collapsed {
  width: 64px;
}

.sidebar-brand {
  padding: 1.2rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--ink2);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.sidebar-link:hover {
  background: var(--accent-dim);
  color: var(--ink);
}

.sidebar-link.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-home {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--duration) var(--ease);
}

.sidebar-home:hover {
  opacity: 0.9;
}

.sidebar-icon {
  width: 24px;
  text-align: center;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-icon svg {
  width: 20px;
  height: 20px;
}

.sidebar-label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-collapse-btn {
  background: none;
  border: none;
  color: var(--ink2);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  text-align: center;
  font-family: inherit;
}

.sidebar-collapse-btn:hover {
  background: var(--accent-dim);
  color: var(--ink);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.5rem;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.user-info {
  overflow: hidden;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.7rem;
  color: var(--ink2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-logout {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: none;
  border: none;
  color: var(--ink2);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  font-family: inherit;
  width: 100%;
}

.sidebar-logout:hover {
  background: var(--danger-dim);
  color: var(--danger);
}

.sidebar-logout.icon-only {
  justify-content: center;
  padding: 0.5rem;
}

.admin-main {
  flex: 1;
  margin-right: 240px;
  padding: 1.5rem;
  min-height: 100vh;
  transition: margin-right 0.3s var(--ease);
}

.admin-sidebar.collapsed ~ .admin-main {
  margin-right: 64px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .app {
    padding: var(--space-4) var(--space-4) var(--space-8);
  }
  .app-header {
    padding: var(--space-2) var(--space-4);
  }
  .grid {
    gap: var(--space-5);
  }
  .system-info-card .sys-row {
    grid-template-columns: 120px 1fr;
  }
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr !important;
  }
  .grid .controls {
    order: 2;
  }
  .grid .results {
    order: 1;
  }
  .dropzone {
    min-height: 120px;
  }
  .preview-wrap {
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .app {
    padding: var(--space-3) var(--space-3) var(--space-6);
  }
  .app-header {
    padding: var(--space-2) var(--space-3);
    flex-wrap: wrap;
  }
  .app-header-brand h1 {
    font-size: var(--text-base);
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .panel {
    padding: var(--space-4);
  }
  .dropzone {
    padding: var(--space-6) var(--space-3);
  }
  .user-bar {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
  }
  .admin-tabs {
    gap: var(--space-1);
  }
  .tab-btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
  }
  .stat-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .system-info-card .sys-row {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
  .hero {
    padding: 4rem 0 3rem;
  }
  .hero-stats {
    gap: 1rem;
  }
  .hero-stats .stat-card {
    min-width: 90px;
    padding: 0.6rem 0.8rem;
  }
  .hero-stats .stat-number {
    font-size: 1.4rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    gap: 0.6rem;
  }
  .admin-sidebar {
    width: 100% !important;
    bottom: auto;
    height: auto;
    flex-direction: row;
    position: relative;
  }
  .admin-sidebar:not(.collapsed) {
    width: 100% !important;
  }
  .sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem;
  }
  .sidebar-link {
    padding: 0.4rem 0.6rem;
    font-size: 0.78rem;
  }
  .sidebar-label {
    display: none;
  }
  .sidebar-footer {
    display: none;
  }
  .sidebar-brand {
    display: none;
  }
  .admin-main {
    margin-right: 0 !important;
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .app {
    padding: var(--space-2) var(--space-2) var(--space-4);
  }
  .app-header {
    padding: var(--space-2);
    border-radius: var(--radius-lg);
  }
  .app-header-brand h1 {
    font-size: var(--text-sm);
  }
  .panel {
    padding: var(--space-3);
    border-radius: var(--radius);
  }
  .dropzone {
    padding: var(--space-5) var(--space-2);
  }
  .dropzone span {
    font-size: var(--text-sm);
  }
  .dropzone small {
    font-size: var(--text-xs);
  }
  .stat-cards {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
  }
  .stat-card {
    padding: var(--space-3);
  }
  .stat-card .v {
    font-size: var(--text-xl);
  }
  .accordion-header {
    padding: var(--space-3);
    font-size: var(--text-sm);
  }
  .accordion-body {
    padding: var(--space-2);
  }
  input,
  select {
    padding: var(--space-2) var(--space-3);
  }
  .hero {
    padding: 2.5rem 0 2rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .hero-stats {
    gap: 0.5rem;
  }
  .hero-stats .stat-card {
    min-width: 70px;
    padding: 0.5rem 0.6rem;
  }
  .hero-stats .stat-number {
    font-size: 1.2rem;
  }
  .hero-stats .stat-label {
    font-size: 0.7rem;
  }
  .nav-brand {
    font-size: 1rem;
  }
  .auth-card {
    padding: 1.5rem 1.2rem;
  }
  .accordion-header {
    font-size: 0.85rem;
    padding: 0.65rem 0.8rem;
  }
  .btn-key {
    font-size: 0.8rem;
    padding: 0.5rem 0.85rem;
  }
  .btn-key.wide {
    width: 100%;
  }
  .confirm-actions {
    flex-direction: column;
  }
  .total-card {
    padding: 0.8rem;
  }
  .total-card .value {
    font-size: 1.6rem;
  }
  .tool-chip {
    font-size: 0.75rem;
    padding: 0.4rem 0.65rem;
  }
  .tool-select {
    font-size: 0.75rem;
    padding: 0.35rem 1.8rem 0.35rem 0.5rem;
  }
}

/* ── Profile page ── */
.page {
  min-height: 100vh;
  padding: var(--space-8) 0;
}

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

.profile-shell {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}

.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.profile-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.profile-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.profile-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}

.profile-card-subtitle {
  font-size: var(--text-sm);
  color: var(--muted);
  margin: 0;
}

.profile-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.profile-actions .btn-key {
  flex: 1;
  justify-content: center;
}

@media (max-width: 640px) {
  .profile-shell {
    grid-template-columns: 1fr;
  }
  .profile-actions {
    flex-direction: column;
  }
}