@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  :root {
    /* SkillHub — 浅色主题 (indigo-violet brand) */
    --background: 210 20% 98%;
    --foreground: 220 26% 14%;
    --card: 0 0% 100%;
    --card-foreground: 220 26% 14%;
    --popover: 0 0% 100%;
    --popover-foreground: 220 26% 14%;
    /* Indigo primary (#6A6DFF) */
    --primary: 239 100% 71%;
    --primary-foreground: 0 0% 100%;
    /* Surface tones */
    --secondary: 210 30% 96%;
    --secondary-foreground: 220 26% 14%;
    --muted: 210 25% 95%;
    --muted-foreground: 215 14% 46%;
    /* Violet accent (#B85EFF) */
    --accent: 271 100% 68%;
    --accent-foreground: 0 0% 100%;
    --destructive: 0 72% 55%;
    --destructive-foreground: 0 0% 100%;
    --border: 214 32% 91%;
    --input: 214 32% 91%;
    --ring: 239 100% 71%;
    --radius: 0.75rem;

    /* Extended palette */
    --surface-glass: 210 30% 97%;
    --glow-primary: 239 100% 71%;
    --glow-accent: 271 100% 68%;
    --success: 160 60% 45%;
    --warning: 38 92% 58%;

    /* Brand */
    --brand-start: #6A6DFF;
    --brand-end: #B85EFF;
    --brand-gradient: linear-gradient(135deg, #6A6DFF 0%, #B85EFF 100%);

    /* Text semantic */
    --text-secondary: 215 19% 35%;
    --text-muted: 215 14% 46%;
    --text-placeholder: 213 12% 63%;

    /* Border semantic */
    --border-card: 220 26% 94%;
  }

  .dark {
    /* Dark theme (preserved, not default) */
    --background: 222 47% 6%;
    --foreground: 210 40% 96%;
    --card: 222 40% 9%;
    --card-foreground: 210 40% 96%;
    --popover: 222 40% 9%;
    --popover-foreground: 210 40% 96%;
    --primary: 239 100% 75%;
    --primary-foreground: 222 47% 6%;
    --secondary: 222 30% 13%;
    --secondary-foreground: 210 30% 85%;
    --muted: 222 25% 15%;
    --muted-foreground: 215 20% 55%;
    --accent: 271 100% 72%;
    --accent-foreground: 0 0% 100%;
    --destructive: 0 72% 55%;
    --destructive-foreground: 0 0% 100%;
    --border: 222 20% 18%;
    --input: 222 20% 18%;
    --ring: 239 100% 75%;
    --surface-glass: 222 35% 11%;
    --glow-primary: 239 100% 75%;
    --glow-accent: 271 100% 72%;
  }
}

@layer base {
  * {
    @apply border-border;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    @apply bg-background text-foreground antialiased;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: 'Syne', 'IBM Plex Sans', system-ui, sans-serif;
  }

  code, pre, kbd {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
  }

  /* Hide browser-native password reveal button (conflicts with custom toggle) */
  input[type="password"]::-ms-reveal,
  input[type="password"]::-ms-clear,
  input[type="password"]::-webkit-credentials-auto-fill-button {
    display: none;
  }
}

/* ─── Dot-grid background texture ─── */
.bg-dots {
  background-image: radial-gradient(circle, hsl(var(--muted-foreground) / 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* ─── Gradient glow orbs ─── */
.glow-orb-primary {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, hsl(var(--glow-primary) / 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.glow-orb-accent {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, hsl(var(--glow-accent) / 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ─── Glass morphism ─── */
.glass {
  background: hsl(var(--surface-glass) / 0.7);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border: 1px solid hsl(var(--border) / 0.5);
}

.glass-strong {
  background: hsl(var(--surface-glass) / 0.85);
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  border: 1px solid hsl(var(--border) / 0.6);
}

/* ─── Animations ─── */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.animate-fade-up {
  animation: fade-up 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.scroll-fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

.animate-fade-in {
  animation: fade-in 0.5s ease both;
}

.animate-slide-in-right {
  animation: slide-in-right 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    hsl(var(--muted)) 25%,
    hsl(var(--muted-foreground) / 0.08) 50%,
    hsl(var(--muted)) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* Stagger delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* ─── Gradient text ─── */
.text-gradient-primary {
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--accent)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-hero {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dark .text-gradient-hero {
  background: linear-gradient(135deg, #8183FF, #C77EFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Card hover lift ─── */
.card-hover {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px hsl(var(--primary) / 0.1),
              0 8px 16px -8px hsl(0 0% 0% / 0.2);
  border-color: hsl(var(--primary) / 0.3);
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: hsl(var(--background));
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--muted-foreground) / 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--muted-foreground) / 0.5);
}

/* ─── Selection ─── */
::selection {
  background: hsl(var(--primary) / 0.3);
  color: hsl(var(--foreground));
}

/* ─── Focus ring ─── */
.focus-ring {
  @apply focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background;
}

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

.bg-brand-gradient {
  background: var(--brand-gradient);
}

/* ─── Handle tag (namespace @ pill) ─── */
.handle-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  color: #0369a1;
  background: #e0f2fe;
  border: 1px solid #7dd3fc;
  border-radius: 9999px;
}

/* ─── Status pills ─── */
.status-pill {
  display: inline-flex;
  align-items: center;
  margin-left: 5px;
  padding: 4px 18px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 9999px;
  color: white;
}

.status-pill--published { background: #16a34a; }
.status-pill--review { background: #ea580c; }
.status-pill--archived { background: #6b7280; }
.status-pill--rejected { background: #dc2626; }

/* ─── Role pill ─── */
.role-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 9999px;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--text-secondary));
}

/* ─── Soft badges ─── */
.badge-soft {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
}

.badge-soft-green {
  background: #dcfce7;
  color: #166534;
}

.badge-soft-blue {
  background: #dbeafe;
  color: #1d4ed8;
}

/* ─── Tab active ─── */
.tab-active {
  border-bottom: 2px solid #3b82f6;
  color: #1d4ed8;
}

/* ─── Code block ─── */
.code-block {
  background: #1A202C;
  color: #e5e7eb;
  border-radius: 12px;
}

/* ─── Markdown code highlighting ─── */
.hljs {
  display: block;
  color: hsl(var(--foreground) / 0.92);
  background: transparent;
}

.hljs-comment,
.hljs-quote {
  color: hsl(var(--muted-foreground) / 0.9);
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-name,
.hljs-section,
.hljs-link {
  color: hsl(var(--primary) / 0.95);
  font-weight: 600;
}

.hljs-string,
.hljs-title,
.hljs-attribute,
.hljs-symbol,
.hljs-bullet,
.hljs-addition {
  color: hsl(var(--accent) / 0.9);
}

.hljs-number,
.hljs-meta,
.hljs-variable,
.hljs-template-variable,
.hljs-type,
.hljs-built_in,
.hljs-params {
  color: hsl(218 70% 45%);
}

.hljs-function,
.hljs-title.function_,
.hljs-title.class_ {
  color: hsl(var(--foreground) / 0.95);
  font-weight: 600;
}

.hljs-regexp,
.hljs-subst,
.hljs-doctag {
  color: hsl(24 85% 52%);
}

.hljs-deletion {
  color: hsl(var(--destructive) / 0.88);
}

/* ─── Upload zone ─── */
.upload-zone {
  border: 2px dashed hsl(var(--border));
  background: hsl(var(--background));
  transition: border-color 0.2s ease, background 0.2s ease;
}

.upload-zone:hover {
  border-color: var(--brand-start);
  background: rgba(106, 109, 255, 0.04);
}

.upload-zone .upload-zone-icon {
  color: hsl(var(--muted-foreground));
  transition: color 0.2s ease;
}

.upload-zone:hover .upload-zone-icon {
  color: var(--brand-start);
}

/* ─── Feature icon shadow ─── */
.feature-icon {
  box-shadow: 0 14px 30px rgba(106, 109, 255, 0.45);
}

/* ─── Hero input placeholder ─── */
.hero-input::placeholder {
  color: hsl(var(--text-placeholder));
}