/* 
 * impeccable.style — Tailwind CSS v4 + Custom Components
 * 
 * Architecture:
 * - Tailwind v4 with custom theme tokens
 * - Custom components for complex UI patterns
 * - Minimal CSS for what Tailwind can't express
 */

@import "tailwindcss";

/* ============================================
   TAILWIND THEME - Static Design Tokens
   ============================================ */

@theme {
  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Instrument Sans', system-ui, sans-serif;
  --font-mono: 'Space Grotesk', monospace;
  
  /* Spacing Scale */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 48px;
  --spacing-xl: 80px;
  --spacing-2xl: 128px;
  --spacing-3xl: 192px;
  
  /* Width */
  --width-max: 1280px;
  --width-content: 840px;
  
  /* Animation */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-base: 0.3s;
  --duration-slow: 0.6s;
  --duration-slower: 0.8s;
  --duration-slowest: 1.2s;
}

/* ============================================
   COLOR TOKENS - Light/Dark Mode via CSS
   ============================================ */

:root {
  /* Colors - Light Mode */
  --color-ink: oklch(10% 0 0);
  --color-text: oklch(10% 0 0);
  --color-paper: oklch(98% 0 0);
  --color-charcoal: oklch(25% 0 0);
  --color-ash: oklch(55% 0 0);
  --color-mist: oklch(92% 0 0);
  --color-bg: oklch(96% 0.005 350);
  --color-accent: oklch(60% 0.25 350);
  --color-accent-hover: oklch(52% 0.25 350);
  --color-accent-dim: oklch(60% 0.25 350 / 0.15);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-ink: oklch(98% 0 0);
    --color-text: oklch(98% 0 0);
    --color-paper: oklch(10% 0 0);
    --color-charcoal: oklch(92% 0 0);
    --color-ash: oklch(65% 0 0);
    --color-mist: oklch(20% 0 0);
    --color-bg: oklch(12% 0.005 350);
    --color-accent: oklch(68% 0.23 350);
    --color-accent-hover: oklch(76% 0.23 350);
  }
}

/* ============================================
   BASE STYLES
   ============================================ */

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity var(--duration-fast) var(--ease-out);
}

a:hover {
  opacity: 0.7;
}

/* ============================================
   SECTION TITLE - With accent underline
   ============================================ */

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  position: relative;
  display: block;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.25em;
  left: 0;
  width: 80px;
  height: 2px;
  background: var(--color-accent);
}

/* ============================================
   BACKGROUND ATMOSPHERE
   ============================================ */

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, var(--color-accent-dim) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--color-accent-dim) 0%, transparent 50%);
  opacity: 0;
  z-index: -1;
  animation: fadeInBg var(--duration-slowest) var(--ease-out) 0.3s forwards;
  pointer-events: none;
}

/* ============================================
   HERO DECORATIONS
   ============================================ */

.deco-line {
  position: absolute;
  width: 160px;
  height: 2px;
  background: var(--color-accent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-25deg);
  animation: expandLine 1s var(--ease-out) 0.6s both;
}

.deco-circle {
  position: absolute;
  width: 120px;
  height: 120px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: drawCircle 1s var(--ease-out) 0.8s both;
  opacity: 0.3;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-paper);
  width: 100%;
  position: relative;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-ink);
  transform: translateY(100%);
  transition: transform var(--duration-base) var(--ease-out);
  z-index: -1;
}

.btn-primary:hover::before {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
}

.btn-secondary:hover {
  background: var(--color-ink);
  color: var(--color-paper);
}

/* ============================================
   CARD COMPONENTS
   ============================================ */

.card-inner {
  height: 100%;
  padding: var(--spacing-lg);
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: translateX(-100%);
  transition: transform 0.4s var(--ease-out);
}

.card-inner:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.card-inner:hover::before {
  transform: translateX(0);
}

.badge {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25em 0.625em;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 2px;
  font-weight: 600;
  white-space: nowrap;
}

/* ============================================
   SOLUTION CARDS
   ============================================ */

.solution-card {
  padding: var(--spacing-lg);
  background: var(--color-paper);
  border-left: 3px solid var(--color-accent);
  transition: all var(--duration-base) var(--ease-out);
}

.solution-card:hover {
  background: color-mix(in oklch, var(--color-paper) 90%, var(--color-accent));
  transform: translateX(4px);
}

.solution-card code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: color-mix(in oklch, var(--color-accent) 15%, transparent);
  color: var(--color-accent);
  padding: 0.125em 0.375em;
  border-radius: 3px;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInBg {
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
}

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

@keyframes expandLine {
  from { width: 0; }
}

@keyframes drawCircle {
  from {
    opacity: 0;
    scale: 0;
  }
  to {
    opacity: 1;
    scale: 1;
  }
}

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
}

[data-animate].animated {
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

/* Hero animations */
.hero-content {
  animation: slideInLeft var(--duration-slower) var(--ease-out) 0.1s both;
}

.hero-decoration {
  animation: slideInRight var(--duration-slower) var(--ease-out) 0.3s both;
}

/* ============================================
   IMPORTS - Complex components that need custom CSS
   ============================================ */

@import "./problem-section.css";
@import "./skill-demos.css";
@import "./gallery.css";
@import "./workflow.css";