/**
 * FRANCO DESIGN SYSTEM & MOTION ENGINE
 * Synthesized using Stitch Design Taste & Emil Kowalski Product-Grade Motion Principles
 */

:root {
  /* ==========================================================================
     1. COLOR TOKENS (Monochromatic Warm Linen Family)
     ========================================================================== */
  --bg-canvas: #fbf8f3;
  --bg-canvas-rgb: 251, 248, 243;
  --bg-card: #f4efe6;
  --bg-card-hover: #ece5d8;
  --bg-dark-accent: #1c2826;
  --bg-dark-card: #23322f;

  /* Typography Colors */
  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --text-subtle: #9ca3af;
  --text-inverted: #fbf8f3;
  --text-inverted-muted: #9aa8a4;

  /* Borders & Dividers */
  --border-subtle: rgba(17, 24, 39, 0.08);
  --border-medium: rgba(17, 24, 39, 0.16);
  --border-dark: rgba(251, 248, 243, 0.12);

  /* Glassmorphic Surfaces */
  --overlay-glass: rgba(251, 248, 243, 0.82);
  --overlay-glass-dark: rgba(28, 40, 38, 0.88);

  /* ==========================================================================
     2. TYPOGRAPHIC TOKENS
     ========================================================================== */
  --font-serif: "Instrument Serif", "Editorial New", "Butler", Georgia, serif;
  --font-sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "DM Mono", "SF Mono", Menlo, Consolas, monospace;

  /* Type Scale */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 2rem;      /* 32px */
  --text-4xl: 2.75rem;   /* 44px */
  --text-5xl: 3.75rem;   /* 60px */
  --text-display: clamp(3rem, 7vw, 6.5rem);

  /* Letter Spacing */
  --tracking-tight: -0.03em;
  --tracking-snug: -0.015em;
  --tracking-normal: 0em;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.15em;

  /* Line Heights */
  --leading-tight: 1.08;
  --leading-snug: 1.25;
  --leading-relaxed: 1.62;

  /* ==========================================================================
     3. SPACING & LAYOUT TOKENS (8pt Harmonic Grid)
     ========================================================================== */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-24: 6rem;    /* 96px */
  --space-32: 8rem;    /* 128px */

  --container-max: 1320px;
  --container-reading: 65ch;

  /* ==========================================================================
     4. RADII & ELEVATIONS
     ========================================================================== */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-card: 16px;
  --radius-pill: 9999px;

  /* Ambient Diffused Shadows (No harsh drops) */
  --shadow-ambient-sm: 0 4px 12px rgba(17, 24, 39, 0.03);
  --shadow-ambient-md: 0 12px 28px rgba(17, 24, 39, 0.04);
  --shadow-ambient-lg: 0 24px 48px rgba(17, 24, 39, 0.06);

  /* ==========================================================================
     5. EMIL KOWALSKI MOTION LAWS & SPRINGS
     ========================================================================== */
  /* Snappy Spring (Buttons, toggles, micro-feedback) */
  --ease-spring-snappy: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-snappy: 180ms;

  /* Spatial Transitions (Layout expansion, sheet slides) */
  --ease-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-layout: 320ms;

  /* Cinematic Media Reveal */
  --ease-cinematic: cubic-bezier(0.25, 0.1, 0.25, 1);
  --duration-cinematic: 600ms;
}

/* ==========================================================================
   GLOBAL RESET & CANVAS BASE
   ========================================================================== */
body {
  background-color: var(--bg-canvas) !important;
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   TYPOGRAPHIC UTILITIES
   ========================================================================== */
.franco-display {
  font-family: var(--font-serif);
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 400;
}

.franco-h1 {
  font-family: var(--font-serif);
  font-size: var(--text-5xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 400;
}

.franco-h2 {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  font-weight: 400;
}

.franco-h3 {
  font-family: var(--font-sans);
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  font-weight: 500;
}

.franco-body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  max-width: var(--container-reading);
}

.franco-label-mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ==========================================================================
   INTERACTIVE BUTTONS (Emil Kowalski Physics)
   ========================================================================== */
.franco-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--duration-snappy) var(--ease-spring-snappy),
              background-color var(--duration-snappy) var(--ease-spring-snappy),
              border-color var(--duration-snappy) var(--ease-spring-snappy),
              box-shadow var(--duration-snappy) var(--ease-spring-snappy);
  user-select: none;
}

.franco-btn:hover {
  transform: translateY(-1.5px);
}

.franco-btn:active {
  transform: scale(0.97);
}

.franco-btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-canvas);
}

.franco-btn-primary:hover {
  background-color: #000;
  box-shadow: var(--shadow-ambient-md);
}

.franco-btn-ghost {
  background-color: transparent;
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.franco-btn-ghost:hover {
  background-color: rgba(17, 24, 39, 0.04);
  border-color: var(--text-primary);
}

/* ==========================================================================
   CARDS & CONTAINERS
   ========================================================================== */
.franco-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-ambient-sm);
  transition: transform var(--duration-layout) var(--ease-smooth-out),
              box-shadow var(--duration-layout) var(--ease-smooth-out),
              background-color var(--duration-snappy) var(--ease-spring-snappy);
}

.franco-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-ambient-lg);
  background-color: var(--bg-card-hover);
}

.franco-card-dark {
  background-color: var(--bg-dark-accent);
  color: var(--text-inverted);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
}

/* ==========================================================================
   WORD-CLOUD FOCUS / BLUR INTERACTION SYSTEM
   ========================================================================== */
.franco-focus-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.franco-focus-item {
  position: relative;
  cursor: pointer;
  transition: opacity var(--duration-snappy) var(--ease-spring-snappy),
              filter var(--duration-snappy) var(--ease-spring-snappy),
              transform var(--duration-snappy) var(--ease-spring-snappy);
}

/* When parent is hovered, blur siblings */
.franco-focus-group:hover .franco-focus-item {
  opacity: 0.35;
  filter: blur(1.5px);
}

.franco-focus-group:hover .franco-focus-item:hover {
  opacity: 1;
  filter: blur(0px);
  transform: scale(1.02);
}

/* ==========================================================================
   FROSTED GLASS NAVIGATION
   ========================================================================== */
.franco-glass-nav {
  background: var(--overlay-glass) !important;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
}

/* ==========================================================================
   BADGES & METRIC PILLS
   ========================================================================== */
.franco-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.franco-badge-dark {
  background-color: var(--bg-dark-card);
  border-color: var(--border-dark);
  color: var(--text-inverted-muted);
}

.franco-badge-live {
  position: relative;
  padding-left: 1.5rem;
}

.franco-badge-live::before {
  content: "";
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

/* ==========================================================================
   FORM CONTROLS & INPUTS
   ========================================================================== */
.franco-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.franco-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-muted);
}

.franco-input {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background-color: transparent;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  outline: none;
  transition: border-color var(--duration-snappy) var(--ease-spring-snappy),
              background-color var(--duration-snappy) var(--ease-spring-snappy),
              box-shadow var(--duration-snappy) var(--ease-spring-snappy);
}

.franco-input:focus {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 0 2px rgba(17, 24, 39, 0.08);
}

.franco-input::placeholder {
  color: var(--text-subtle);
}

/* ==========================================================================
   STATS & IMPACT METRICS
   ========================================================================== */
.franco-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

.franco-stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.franco-stat-num {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  line-height: 1;
  color: var(--text-primary);
  font-weight: 400;
}

.franco-stat-label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS (IntersectionObserver Hook)
   ========================================================================== */
.franco-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-cinematic) var(--ease-smooth-out),
              transform var(--duration-cinematic) var(--ease-smooth-out);
  will-change: opacity, transform;
}

.franco-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}