/* ==========================================================================
   CROWNATE GROUP (CROWNATE.COM)
   Core Institutional Design System - European Minimalist Enterprise Architecture
   High-Contrast Obsidian & Architectural Platinum System
   ========================================================================== */

/* 1. CSS Custom Properties / Tokens */
:root {
  /* Color Palette - Strict Obsidian & Platinum Monochrome with Warm Gold Highlights */
  --crownate-black: #060709;
  --crownate-true-black: #000000;
  --crownate-deep-onyx: #0c0d10;
  --crownate-card-surface: #121418;
  --crownate-surface-raised: #181b20;
  --crownate-surface-hover: #22262e;
  
  --crownate-border-subtle: rgba(255, 255, 255, 0.08);
  --crownate-border-medium: rgba(255, 255, 255, 0.16);
  --crownate-border-high: rgba(255, 255, 255, 0.32);
  --crownate-border-gold: rgba(212, 175, 55, 0.3);

  --crownate-white: #ffffff;
  --crownate-offwhite: #f8f9fa;
  --crownate-platinum: #f1f5f9;
  --crownate-silver: #cbd5e1;
  --crownate-muted-grey: #94a3b8;
  --crownate-dark-grey: #2b2e36;

  /* Refined Accent Hues */
  --crownate-gold: #d4af37;
  --crownate-gold-light: #f59e0b;
  --crownate-gold-dim: rgba(212, 175, 55, 0.18);
  
  --crownate-blue-subtle: #38bdf8;
  --crownate-emerald-subtle: #34d399;
  --crownate-amber-subtle: #fbbf24;
  --crownate-purple-subtle: #a78bfa;

  /* Theme Tokens */
  --bg-primary: var(--crownate-black);
  --bg-secondary: var(--crownate-deep-onyx);
  --bg-surface: var(--crownate-card-surface);
  --bg-surface-raised: var(--crownate-surface-raised);
  --bg-surface-hover: var(--crownate-surface-hover);

  --text-primary: var(--crownate-white);
  --text-secondary: var(--crownate-silver);
  --text-muted: var(--crownate-muted-grey);
  --text-inverse: var(--crownate-black);


  --border-color: var(--crownate-border-subtle);
  --border-color-strong: var(--crownate-border-medium);

  /* Typography Stack */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;
  --font-display: 'Cinzel', 'Inter', -apple-system, serif;

  /* Type Scale */
  --text-2xs: 0.6875rem; /* 11px */
  --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: 2.5rem;    /* 40px */
  --text-5xl: 3.5rem;    /* 56px */
  --text-hero: 4.75rem;  /* 76px */

  /* Line Heights */
  --lh-tight: 1.1;
  --lh-snug: 1.25;
  --lh-heading: 1.3;
  --lh-base: 1.65;

  /* Spacing Scale */
  --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;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout Widths */
  --container-max: 1400px;
  --container-wide: 1600px;
  --container-narrow: 1040px;
  --container-text: 780px;

  /* Transitions & Radii */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;

  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 250ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 700ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px rgba(212, 175, 55, 0.12);

  /* Z-Index Hierarchy */
  --z-base: 1;
  --z-sticky: 100;
  --z-header: 1000;
  --z-drawer-backdrop: 2000;
  --z-drawer: 2010;
  --z-modal: 3000;
  --z-toast: 4000;
  --z-skip-link: 9999;
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: var(--lh-base);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Accessibility Focus Styles */
:focus-visible {
  outline: 2px solid var(--crownate-gold);
  outline-offset: 3px;
}

/* Typography Utility Classes */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: var(--lh-heading);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, var(--text-hero)); font-weight: 700; line-height: var(--lh-tight); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.85rem, 3.5vw, var(--text-4xl)); letter-spacing: -0.025em; }
h3 { font-size: clamp(1.4rem, 2.2vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  color: var(--text-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  line-height: var(--lh-base);
}

p.lead {
  font-size: clamp(1.125rem, 1.8vw, 1.35rem);
  line-height: 1.5;
  color: var(--crownate-platinum);
  font-weight: 300;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

img, svg {
  max-width: 100%;
  display: block;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

button {
  cursor: pointer;
}

/* Grid & Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3vw, var(--space-8));
  padding-right: clamp(1.25rem, 3vw, var(--space-8));
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3vw, var(--space-8));
  padding-right: clamp(1.25rem, 3vw, var(--space-8));
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3vw, var(--space-8));
  padding-right: clamp(1.25rem, 3vw, var(--space-8));
}

.container-text {
  width: 100%;
  max-width: var(--container-text);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3vw, var(--space-8));
  padding-right: clamp(1.25rem, 3vw, var(--space-8));
}

/* Badges & Monospace Tags */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--crownate-gold);
  margin-bottom: var(--space-3);
  font-weight: 500;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--crownate-gold);
}

.tag-mono {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--crownate-silver);
}

.tag-mono.verified {
  background-color: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.3);
  color: #6ee7b7;
}

.tag-mono.gold {
  background-color: var(--crownate-gold-dim);
  border-color: var(--crownate-border-gold);
  color: var(--crownate-gold-light);
}

/* Glassmorphic Surfaces */
.glass-panel {
  background: rgba(18, 20, 24, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.glass-panel-subtle {
  background: rgba(12, 13, 16, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-normal);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--crownate-white);
  color: var(--crownate-true-black);
  border: 1px solid var(--crownate-white);
}

.btn-primary:hover {
  background: var(--crownate-platinum);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
}

.btn-gold {
  background: var(--crownate-gold);
  color: var(--crownate-true-black);
  border: 1px solid var(--crownate-gold);
}

.btn-gold:hover {
  background: var(--crownate-gold-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--crownate-white);
  border: 1px solid var(--border-color-strong);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--crownate-white);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--crownate-platinum);
  border: 1px solid transparent;
  padding-left: var(--space-3);
  padding-right: var(--space-3);
}

.btn-ghost:hover {
  color: var(--crownate-gold);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--crownate-white);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-color-strong);
}

/* Section Spacing */
.section {
  padding-top: clamp(var(--space-16), 8vw, var(--space-32));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-32));
  position: relative;
}

.section-tight {
  padding-top: clamp(var(--space-10), 5vw, var(--space-16));
  padding-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-color) 20%, var(--border-color) 80%, transparent 100%);
  width: 100%;
}

/* Background Gradients & Ambient Lighting */
.bg-ambient-radial {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.04) 0%, rgba(255, 255, 255, 0.02) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.bg-grid-pattern {
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Skip to Content for Accessibility */
.skip-to-content {
  position: fixed;
  top: -100px;
  left: var(--space-4);
  background: var(--crownate-gold);
  color: var(--crownate-true-black);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-sm);
  z-index: var(--z-skip-link);
  transition: top var(--transition-fast);
  border-radius: var(--radius-xs);
}

.skip-to-content:focus {
  top: var(--space-4);
}