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

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Cursor IDE 2026 Dark Theme */
  /* Base backgrounds - very dark with slight blue tint */
  --bg-base: 240 6% 4%;
  --bg-elevated: 240 6% 8%;
  --bg-surface: 240 5% 11%;
  --bg-overlay: 240 5% 14%;
  --bg-muted: 240 4% 18%;
  
  /* Text colors - zinc-based for readability */
  --text-primary: 240 5% 92%;
  --text-secondary: 240 4% 68%;
  --text-muted: 240 4% 48%;
  --text-faint: 240 3% 38%;
  
  /* Accent colors - indigo/purple like Cursor */
  --accent: 239 84% 67%;
  --accent-hover: 239 84% 74%;
  --accent-muted: 239 60% 55%;
  --accent-subtle: 239 40% 25%;
  
  /* Secondary accent - cyan for variety */
  --accent-secondary: 187 85% 55%;
  --accent-secondary-muted: 187 60% 40%;
  
  /* Semantic colors */
  --success: 142 71% 45%;
  --success-muted: 142 50% 35%;
  --warning: 38 92% 50%;
  --warning-muted: 38 70% 40%;
  --error: 0 72% 51%;
  --error-muted: 0 60% 40%;
  
  /* Border colors */
  --border: 240 4% 16%;
  --border-hover: 240 4% 22%;
  --border-focus: 239 60% 50%;
  
  /* Legacy mappings for compatibility */
  --background: var(--bg-base);
  --foreground: var(--text-primary);
  --card: var(--bg-elevated);
  --card-foreground: var(--text-primary);
  --popover: var(--bg-surface);
  --popover-foreground: var(--text-primary);
  --primary: var(--accent);
  --primary-foreground: 0 0% 100%;
  --secondary: var(--bg-surface);
  --secondary-foreground: var(--text-secondary);
  --muted: var(--bg-muted);
  --muted-foreground: var(--text-muted);
  --accent-color: var(--accent);
  --accent-foreground: 0 0% 100%;
  --destructive: var(--error);
  --destructive-foreground: 0 0% 100%;
  --input: var(--bg-surface);
  --ring: var(--accent);
  --radius: 0.75rem;
}

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

html {
  color-scheme: dark;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: hsl(var(--bg-base));
  color: hsl(var(--text-primary));
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

/* Gradient backgrounds */
.bg-gradient-main {
  background: linear-gradient(
    180deg,
    hsl(240 6% 4%) 0%,
    hsl(240 6% 5%) 50%,
    hsl(240 5% 6%) 100%
  );
}

.bg-gradient-elevated {
  background: linear-gradient(
    180deg,
    hsl(240 6% 9% / 0.9) 0%,
    hsl(240 6% 7% / 0.8) 100%
  );
}

.bg-gradient-card {
  background: linear-gradient(
    180deg,
    hsl(240 5% 11% / 0.6) 0%,
    hsl(240 5% 9% / 0.4) 100%
  );
}

/* Accent gradient for special elements */
.bg-gradient-accent {
  background: linear-gradient(
    135deg,
    hsl(239 84% 67%) 0%,
    hsl(260 84% 67%) 50%,
    hsl(239 84% 67%) 100%
  );
}

/* Text gradient */
.text-gradient {
  background: linear-gradient(
    135deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Gradient border button */
.btn-gradient {
  position: relative;
  background: transparent;
  border: none;
  border-radius: 0.75rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(239 84% 74%);
  transition: all 0.15s ease;
  z-index: 1;
}

.btn-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 0.75rem;
  padding: 1.5px;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.btn-gradient:hover {
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.1) 0%,
    hsl(260 90% 75% / 0.1) 50%,
    hsl(187 85% 65% / 0.1) 100%
  );
}

.btn-gradient:active {
  transform: scale(0.98);
}

/* Gradient border - larger version */
.btn-gradient-lg {
  position: relative;
  background: transparent;
  border: none;
  border-radius: 0.75rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(239 84% 74%);
  transition: all 0.15s ease;
  z-index: 1;
}

.btn-gradient-lg::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 0.75rem;
  padding: 2px;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.btn-gradient-lg:hover {
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.1) 0%,
    hsl(260 90% 75% / 0.1) 50%,
    hsl(187 85% 65% / 0.1) 100%
  );
}

/* Gradient text for buttons */
.btn-gradient-text {
  background: linear-gradient(
    135deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Gradient active state for selectable items */
.active-gradient {
  position: relative;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.1) 0%,
    hsl(260 90% 75% / 0.08) 50%,
    hsl(187 85% 65% / 0.06) 100%
  );
}

.active-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.4) 0%,
    hsl(260 90% 75% / 0.3) 50%,
    hsl(187 85% 65% / 0.2) 100%
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Gradient border for cards on hover */
.hover-gradient:hover {
  position: relative;
}

.hover-gradient:hover::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.3) 0%,
    hsl(260 90% 75% / 0.2) 50%,
    hsl(187 85% 65% / 0.15) 100%
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Gradient icon wrapper */
.icon-gradient {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.15) 0%,
    hsl(260 90% 75% / 0.1) 50%,
    hsl(187 85% 65% / 0.08) 100%
  );
  position: relative;
}

.icon-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.25) 0%,
    hsl(260 90% 75% / 0.2) 50%,
    hsl(187 85% 65% / 0.15) 100%
  );
  -webkit-mask: 
    linear-gradient(#fff 0 0) content-box, 
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Gradient focus state for inputs */
.input-gradient:focus {
  outline: none;
  border-color: transparent;
  box-shadow: 0 0 0 1px hsl(239 84% 74% / 0.4),
              0 0 0 3px hsl(239 84% 74% / 0.1);
}

/* Gradient loader */
.loader-gradient {
  color: hsl(239 84% 74%);
  filter: drop-shadow(0 0 8px hsl(239 84% 74% / 0.3));
}

/* Progress bar gradient */
.progress-gradient {
  background: linear-gradient(
    90deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
}

/* Stat card gradient */
.stat-gradient {
  background: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.08) 0%,
    hsl(260 90% 75% / 0.05) 100%
  );
  border: 1px solid;
  border-image: linear-gradient(
    135deg,
    hsl(239 84% 74% / 0.25) 0%,
    hsl(187 85% 65% / 0.15) 100%
  ) 1;
}

/* Gradient glow effect */
.glow-gradient {
  box-shadow: 0 0 20px hsl(239 84% 74% / 0.15),
              0 0 40px hsl(260 90% 75% / 0.1),
              0 0 60px hsl(187 85% 65% / 0.05);
}

/* Border left gradient indicator */
.border-l-gradient {
  position: relative;
}

.border-l-gradient::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 60%;
  background: linear-gradient(
    180deg,
    hsl(239 84% 74%) 0%,
    hsl(260 90% 75%) 50%,
    hsl(187 85% 65%) 100%
  );
  border-radius: 1px;
}

/* Modern thin scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: hsl(240 4% 20%);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(240 4% 28%);
}

/* Hide scrollbar utility */
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

::selection {
  background: hsl(239 84% 67% / 0.3);
}

/* Code font */
.font-mono {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
}

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

@layer components {
  /* Glass morphism card */
  .glass-card {
    @apply bg-surface/60 backdrop-blur-xl border border-border rounded-2xl;
  }
  
  /* Surface card with hover */
  .surface-card {
    @apply bg-elevated/40 backdrop-blur-sm border border-border/50 rounded-xl;
    @apply transition-all duration-200;
  }
  
  .surface-card:hover {
    @apply border-border-hover bg-elevated/60;
  }
  
  /* Input styles */
  .input-cursor {
    @apply bg-surface/50 border border-border rounded-xl px-4 py-3;
    @apply text-primary placeholder:text-muted;
    @apply focus:outline-none focus:border-accent/50 focus:ring-1 focus:ring-accent/20;
    @apply transition-all duration-200;
  }
  
  /* Primary button - gradient accent */
  .btn-primary {
    @apply bg-accent/10 text-accent-foreground border border-accent/30;
    @apply rounded-xl px-4 py-2.5 text-sm font-medium;
    @apply hover:bg-accent/20 hover:border-accent/50;
    @apply active:bg-accent/25;
    @apply transition-all duration-150;
  }
  
  .btn-primary-solid {
    @apply bg-accent text-white border-none;
    @apply rounded-xl px-4 py-2.5 text-sm font-medium;
    @apply hover:bg-accent-hover;
    @apply active:scale-[0.98];
    @apply transition-all duration-150;
  }
  
  /* Secondary button */
  .btn-secondary {
    @apply bg-surface/50 text-secondary border border-border;
    @apply rounded-xl px-4 py-2.5 text-sm font-medium;
    @apply hover:bg-muted/50 hover:text-primary hover:border-border-hover;
    @apply transition-all duration-150;
  }
  
  /* Ghost button */
  .btn-ghost {
    @apply text-secondary hover:text-primary;
    @apply hover:bg-surface/50 rounded-xl px-3 py-2;
    @apply transition-all duration-150;
  }
  
  /* Icon button */
  .btn-icon {
    @apply w-9 h-9 flex items-center justify-center rounded-xl;
    @apply text-muted hover:text-secondary hover:bg-surface/50;
    @apply transition-all duration-150;
  }
  
  .btn-icon-active {
    @apply bg-accent/15 text-accent;
  }
  
  /* Navigation item */
  .nav-item {
    @apply flex items-center gap-3 px-3 py-2.5 rounded-xl;
    @apply text-secondary hover:text-primary;
    @apply hover:bg-surface/40 transition-all duration-150;
  }
  
  .nav-item-active {
    @apply bg-accent/10 text-primary;
    @apply border-l-2 border-accent;
  }
  
  /* Card styles */
  .card {
    @apply bg-elevated/40 backdrop-blur-sm;
    @apply border border-border/50 rounded-2xl;
    @apply transition-all duration-200;
  }
  
  .card:hover {
    @apply border-border bg-elevated/60;
  }
  
  .card-interactive {
    @apply cursor-pointer;
  }
  
  .card-interactive:hover {
    @apply border-accent/30 shadow-lg shadow-accent/5;
  }
  
  /* Section headers */
  .section-header {
    @apply text-xs font-semibold uppercase tracking-wider text-muted;
  }
  
  /* Badges */
  .badge {
    @apply inline-flex items-center px-2 py-0.5 rounded-lg text-xs font-medium;
    @apply bg-surface text-secondary border border-border/50;
  }
  
  .badge-accent {
    @apply bg-accent/15 text-accent border-accent/30;
  }
  
  .badge-success {
    @apply bg-success/15 text-success border-success/30;
  }
  
  .badge-warning {
    @apply bg-warning/15 text-warning border-warning/30;
  }
  
  .badge-error {
    @apply bg-error/15 text-error border-error/30;
  }
  
  /* Divider */
  .divider {
    @apply border-t border-border/50;
  }
}

@layer utilities {
  .text-balance {
    text-wrap: balance;
  }
  
  /* Glow effects */
  .glow-accent {
    box-shadow: 0 0 20px hsl(239 84% 67% / 0.15),
                0 0 40px hsl(239 84% 67% / 0.1);
  }
  
  .glow-accent-strong {
    box-shadow: 0 0 30px hsl(239 84% 67% / 0.25),
                0 0 60px hsl(239 84% 67% / 0.15);
  }
  
  .glow-subtle {
    box-shadow: 0 4px 20px hsl(240 6% 4% / 0.5);
  }
  
  /* Focus ring */
  .focus-ring {
    @apply focus:outline-none focus:ring-2 focus:ring-accent/50 focus:ring-offset-2 focus:ring-offset-base;
  }
  
  /* Animation delays */
  .animate-delay-75 { animation-delay: 75ms; }
  .animate-delay-100 { animation-delay: 100ms; }
  .animate-delay-150 { animation-delay: 150ms; }
  .animate-delay-200 { animation-delay: 200ms; }
  .animate-delay-300 { animation-delay: 300ms; }
  .animate-delay-400 { animation-delay: 400ms; }
  .animate-delay-500 { animation-delay: 500ms; }
}

/* Smooth animations */
@keyframes fade-in {
  0% { opacity: 0; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-up {
  0% { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes slide-in-right {
  0% { opacity: 0; transform: translateX(-12px); }
  100% { opacity: 1; transform: translateX(0); }
}

@keyframes slide-in-left {
  0% { opacity: 0; transform: translateX(12px); }
  100% { opacity: 1; transform: translateX(0); }
}

@keyframes scale-in {
  0% { opacity: 0; transform: scale(0.95); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

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

@keyframes glow-pulse {
  0%, 100% { 
    box-shadow: 0 0 20px hsl(239 84% 67% / 0.15);
  }
  50% { 
    box-shadow: 0 0 30px hsl(239 84% 67% / 0.25);
  }
}

.animate-fade-in {
  animation: fade-in 0.2s ease-out forwards;
}

.animate-fade-in-up {
  animation: fade-in-up 0.3s ease-out forwards;
}

.animate-slide-in-right {
  animation: slide-in-right 0.25s ease-out forwards;
}

.animate-slide-in-left {
  animation: slide-in-left 0.25s ease-out forwards;
}

.animate-scale-in {
  animation: scale-in 0.2s ease-out forwards;
}

.animate-pulse-soft {
  animation: pulse-soft 2s ease-in-out infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    hsl(240 5% 11%) 0%,
    hsl(240 5% 16%) 50%,
    hsl(240 5% 11%) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
}

.animate-glow-pulse {
  animation: glow-pulse 2s ease-in-out infinite;
}

/* =====================
   Computer UI Styles
   ===================== */

/* Action step container */
.action-step {
  @apply relative;
}

.action-step::before {
  content: '';
  position: absolute;
  left: 1.25rem;
  top: 2.75rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    hsl(var(--border)) 0%,
    transparent 100%
  );
}

/* Strikethrough animation for completed tasks */
@keyframes strikethrough {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.task-completed {
  position: relative;
}

.task-completed::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  height: 1px;
  background: hsl(var(--text-muted));
  animation: strikethrough 0.3s ease-out forwards;
}

/* Typing indicator */
@keyframes typing-dot {
  0%, 20% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; }
}

.typing-indicator span {
  animation: typing-dot 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

/* Code highlight colors */
.code-keyword { color: #c792ea; }
.code-string { color: #c3e88d; }
.code-comment { color: #546e7a; font-style: italic; }
.code-function { color: #82aaff; }
.code-number { color: #f78c6c; }
.code-operator { color: #89ddff; }

/* Thinking block pulse */
@keyframes thinking-pulse {
  0%, 100% {
    background: hsl(239 84% 67% / 0.05);
  }
  50% {
    background: hsl(239 84% 67% / 0.12);
  }
}

.thinking-active {
  animation: thinking-pulse 2s ease-in-out infinite;
}

/* Status indicator pulse */
@keyframes status-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.status-active {
  animation: status-pulse 1.5s ease-in-out infinite;
}

/* File card hover effect */
.file-card-hover {
  transition: all 0.2s ease;
}

.file-card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.3);
}

/* Collapsible animation */
.collapsible-content {
  overflow: hidden;
  transition: max-height 0.3s ease-out, opacity 0.2s ease-out;
}

/* Progress bar shimmer */
@keyframes progress-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.progress-shimmer {
  background: linear-gradient(
    90deg,
    hsl(239 84% 67%) 0%,
    hsl(260 90% 75%) 25%,
    hsl(187 85% 65%) 50%,
    hsl(260 90% 75%) 75%,
    hsl(239 84% 67%) 100%
  );
  background-size: 200% 100%;
  animation: progress-shimmer 2s linear infinite;
}

/* Event timeline line */
.timeline-line {
  position: relative;
}

.timeline-line::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 1.5rem;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    to bottom,
    hsl(var(--border)) 0%,
    transparent 100%
  );
}

/* Artifact card glow on hover */
.artifact-glow:hover {
  box-shadow: 
    0 0 20px hsl(142 71% 45% / 0.15),
    0 4px 12px rgba(0, 0, 0, 0.2);
}