/* =================================================================
   A100E Legal Portal - Premium Minimal Design
   Redesigned with world-class UX/UI principles
   Inspired by: Linear, Vercel, Stripe, Apple
   ================================================================= */

/* Import Inter Font (Google Fonts) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* =================================================================
   CSS Variables - Wellness Premium Palette
   ================================================================= */

:root {
  /* Primary Colors - Wellness Gradients */
  --primary-start: #7C3AED;
  --primary-end: #6366F1;
  --primary: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  --primary-solid: #7C3AED;
  --primary-hover: #6D28D9;

  /* Accent - Wellness Green */
  --accent: #10B981;
  --accent-light: #D1FAE5;

  /* Neutrals - Sophisticated Grays */
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --bg-tertiary: #F5F5F7;

  --surface: #FFFFFF;
  --surface-hover: #F9FAFB;

  --border: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(124, 58, 237, 0.2);

  /* Text Colors - Maximum Legibility */
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --text-tertiary: #94A3B8;

  /* Shadows - Subtle Elevation */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 8px 24px rgba(124, 58, 237, 0.15);

  /* Spacing System - 8px base */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Border Radius */
  --radius-sm: 0.5rem;   /* 8px */
  --radius-md: 0.75rem;  /* 12px */
  --radius-lg: 1rem;     /* 16px */
  --radius-xl: 1.5rem;   /* 24px */
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #2A2A2A;
    --surface: #1A1A1A;
    --surface-hover: #2A2A2A;
    --border: rgba(255, 255, 255, 0.1);
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-tertiary: #94A3B8;
  }
}

/* =================================================================
   Base Styles
   ================================================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.011em;
}

/* Selection */
::selection {
  background: var(--primary-solid);
  color: white;
}

/* =================================================================
   Header - Minimal & Sticky
   ================================================================= */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo:hover {
  opacity: 0.7;
}

.nav {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

/* Dropdown Selectors */
.selector {
  position: relative;
}

.selector-btn {
  padding: var(--space-2) var(--space-4);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}

.selector-btn:hover {
  border-color: var(--border-hover);
  background: var(--surface);
  transform: translateY(-1px);
}

.dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 200px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: none;
  overflow: hidden;
  animation: fadeInScale 200ms ease-out;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-4px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.selector.active .dropdown {
  display: block;
}

.dropdown a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.dropdown a:hover {
  background: var(--bg-secondary);
}

.dropdown a.active {
  background: var(--primary-solid);
  color: white;
  font-weight: 600;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-1) 0;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* =================================================================
   Main Content Area
   ================================================================= */

.main {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-16) var(--space-6);
}

/* Document Header */
.doc-header {
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}

.doc-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.15;
  letter-spacing: -0.03em;
  background: var(--primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.doc-meta {
  display: flex;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.doc-meta strong {
  color: var(--text-secondary);
  font-weight: 600;
}

/* Content Typography */
.content {
  animation: fadeIn 400ms ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: var(--space-12) 0 var(--space-6);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: var(--space-10) 0 var(--space-4);
  letter-spacing: -0.02em;
}

.content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--space-8) 0 var(--space-3);
  letter-spacing: -0.015em;
}

.content h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: var(--space-6) 0 var(--space-2);
}

.content p {
  margin-bottom: var(--space-6);
  color: var(--text-secondary);
}

.content ul,
.content ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-8);
}

.content li {
  margin-bottom: var(--space-2);
  color: var(--text-secondary);
}

.content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: var(--space-10) 0;
}

.content a {
  color: var(--primary-solid);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
}

.content a:hover {
  border-bottom-color: var(--primary-solid);
}

.content strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* =================================================================
   Footer
   ================================================================= */

.footer {
  margin-top: var(--space-24);
  padding: var(--space-12) var(--space-6);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary-solid);
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* =================================================================
   Responsive Design
   ================================================================= */

@media (max-width: 768px) {
  .header-container {
    padding: var(--space-3) var(--space-4);
  }

  .nav {
    display: none;
  }

  .nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .mobile-toggle {
    display: block;
  }

  .main {
    padding: var(--space-12) var(--space-4);
  }

  .doc-title {
    font-size: 1.875rem;
  }

  .footer-links {
    gap: var(--space-4);
  }
}

/* Print Styles */
@media print {
  .header,
  .footer {
    display: none;
  }

  .main {
    max-width: 100%;
    padding: 0;
  }
}