/* ═══════════════════════════════════════════════════════════════
   TOA AI — Enterprise Design System
   Taste of Asia 餐饮集团智能分析平台
   ═══════════════════════════════════════════════════════════════ */

/* ─── Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;600;700&family=DM+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Typography */
  --font-sans: 'DM Sans', 'Noto Sans TC', -apple-system, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-display: 'DM Sans', 'Noto Sans TC', sans-serif;
  
  /* Font Sizes */
  --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;
  --text-6xl: 3.75rem;
  
  /* 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;
  
  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
}

/* ─── Light Theme (Default) ─── */
:root, [data-theme="light"] {
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAF7F2;
  --bg-tertiary: #F5F0E8;
  --bg-elevated: #FFFFFF;
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-tertiary: #94A3B8;
  --text-muted: #CBD5E1;
  
  --border-primary: #E8E2D9;
  --border-secondary: #D4CFC5;
  
  /* Brand Colors - Taste of Asia Crimson + Warm Gold */
  --brand-primary: #9B070D;
  --brand-secondary: #D4A844;
  --brand-light: #FEE2E2;
  --brand-muted: #FCA5A5;
  
  /* Warm Gold Series */
  --gold-primary: #D4A844;
  --gold-secondary: #B8912E;
  --gold-light: #FDF6E3;
  --gold-muted: #E8D5A0;
  
  /* Warm Backgrounds */
  --bg-warm: #FAF7F2;
  --bg-warm-secondary: #F5F0E8;
  
  /* System Colors */
  --pos-color: #9B070D;
  --oms-color: #0EA5E9;
  --erp-color: #8B5CF6;
  --hr-color: #10B981;
  
  /* Functional */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  
  /* Warm-toned Shadows */
  --shadow-sm: 0 1px 2px rgba(60, 40, 20, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(60, 40, 20, 0.06), 0 2px 4px -2px rgba(60, 40, 20, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(60, 40, 20, 0.08), 0 4px 6px -4px rgba(60, 40, 20, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(60, 40, 20, 0.1), 0 8px 10px -6px rgba(60, 40, 20, 0.04);
  --shadow-glow: 0 0 40px rgba(155, 7, 13, 0.15);
  --shadow-glow-gold: 0 0 40px rgba(212, 168, 68, 0.15);
  
  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #9B070D 0%, #7A060B 100%);
  --gradient-brand-soft: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
  --gradient-premium: linear-gradient(135deg, #9B070D 0%, #D4A844 100%);
  --gradient-gold: linear-gradient(135deg, #D4A844 0%, #B8912E 100%);
  --gradient-gold-soft: linear-gradient(135deg, #FDF6E3 0%, #F5E6C0 100%);
  --gradient-mesh: radial-gradient(at 20% 80%, rgba(155, 7, 13, 0.08) 0%, transparent 50%),
                   radial-gradient(at 80% 20%, rgba(212, 168, 68, 0.06) 0%, transparent 50%);
}

/* ─── Dark Theme ─── */
[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --bg-elevated: #1E293B;
  
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-tertiary: #64748B;
  --text-muted: #475569;
  
  --border-primary: #334155;
  --border-secondary: #475569;
  
  --brand-light: rgba(155, 7, 13, 0.2);
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(155, 7, 13, 0.3);
  
  --gradient-brand-soft: linear-gradient(135deg, rgba(155, 7, 13, 0.2) 0%, rgba(155, 7, 13, 0.1) 100%);
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }

p { color: var(--text-secondary); }

a {
  color: var(--brand-primary);
  text-decoration: none;
}

/* ─── Components ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-primary {
  background: var(--gradient-brand);
  color: white;
  box-shadow: 0 4px 14px -3px rgba(155, 7, 13, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -4px rgba(155, 7, 13, 0.5);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

/* ─── Utilities ─── */
.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] .glass {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ─── System Badges ─── */
.system-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.system-badge.pos { background: rgba(155, 7, 13, 0.1); color: var(--pos-color); }
.system-badge.oms { background: rgba(14, 165, 233, 0.1); color: var(--oms-color); }
.system-badge.erp { background: rgba(139, 92, 246, 0.1); color: var(--erp-color); }
.system-badge.hr { background: rgba(16, 185, 129, 0.1); color: var(--hr-color); }

/* ─── Animations ─── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-brand {
  0%, 100% { box-shadow: 0 0 0 0 rgba(155, 7, 13, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(155, 7, 13, 0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Number Count Reveal */
@keyframes countReveal {
  from { opacity: 0; transform: translateY(8px); filter: blur(4px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* Staggered Card Entrance */
@keyframes staggerFadeInUp {
  from { opacity: 0; transform: translateY(24px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Bar Chart Growth */
@keyframes barGrow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@keyframes barGrowY {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

/* Progress Fill */
@keyframes progressFill {
  from { width: 0%; }
  to { width: var(--progress-value); }
}

/* Ring Reveal */
@keyframes ringReveal {
  from { stroke-dashoffset: var(--ring-circumference); }
  to { stroke-dashoffset: var(--ring-offset); }
}

.animate-fade-in { animation: fadeIn var(--duration-slow) var(--ease-out); }
.animate-fade-in-up { animation: fadeInUp var(--duration-slow) var(--ease-out); }
.animate-slide-in-right { animation: slideInRight var(--duration-slow) var(--ease-out); }

/* ─── Stagger Cards ─── */
.stagger-card {
  opacity: 0;
  animation: staggerFadeInUp 500ms var(--ease-out) forwards;
}
.stagger-card:nth-child(1) { animation-delay: 0ms; }
.stagger-card:nth-child(2) { animation-delay: 80ms; }
.stagger-card:nth-child(3) { animation-delay: 160ms; }
.stagger-card:nth-child(4) { animation-delay: 240ms; }
.stagger-card:nth-child(5) { animation-delay: 320ms; }
.stagger-card:nth-child(6) { animation-delay: 400ms; }

/* ─── KPI Card ─── */
.kpi-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
}

.kpi-value {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-display);
  animation: countReveal 600ms var(--ease-out);
}

/* ─── Horizontal Bar Chart ─── */
.bar-chart-h {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.bar-chart-h .bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bar-chart-h .bar-label {
  width: 80px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.bar-chart-h .bar-track {
  flex: 1;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.bar-chart-h .bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transform-origin: left;
  animation: barGrow 800ms var(--ease-out) forwards;
}

.bar-chart-h .bar-value {
  width: 60px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
  flex-shrink: 0;
}

/* ─── Progress Bar ─── */
.progress-bar {
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar .progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  animation: progressFill 1s var(--ease-out) forwards;
}

/* ─── Heatmap ─── */
.heatmap-cell {
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}

.heatmap-cell:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

/* ─── Menu Engineering Badges ─── */
.menu-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.menu-badge.star { background: rgba(212, 168, 68, 0.15); color: #D4A844; }
.menu-badge.puzzle { background: rgba(139, 92, 246, 0.1); color: #8B5CF6; }
.menu-badge.plowhorse { background: rgba(14, 165, 233, 0.1); color: #0EA5E9; }
.menu-badge.dog { background: rgba(148, 163, 184, 0.15); color: #64748B; }

/* ─── Focus ─── */
:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

::selection {
  background: var(--brand-light);
  color: var(--text-primary);
}