/* ========================================
   VARIABLES
======================================== */
:root {
  /* Colors */
  --color-background: #0a1124;
  --color-surface: #18213a;
  --color-text: #e6e8f0;
  --color-primary: #4f74e0;
  --color-primary-accent: #8da8ff;
  --color-success: #30d589;
  --color-warning: #ffc857;
  --color-danger: #f34e68;
  --color-gray-100: #f1f3f8;
  --color-gray-200: #d9dee9;
  --color-gray-300: #afbdd6;
  --color-gray-400: #8792b0;
  --color-gray-500: #647195;
  --color-gray-600: #4c5673;
  --color-gray-700: #35415b;
  --color-muted: #27324b;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', 'Arial', sans-serif;
  --font-mono: 'Fira Mono', 'Menlo', 'Monaco', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2.25rem;
  --font-size-xxl: 3rem;
  --line-height-tight: 1.15;
  --line-height-normal: 1.5;
  --line-height-loose: 1.75;

  /* Spacing (scaled: 0, 4, 8, ..., 96) */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 20px;

  /* Shadows */
  --shadow-xs: 0 2px 6px 0 rgba(40, 80, 180, 0.10);
  --shadow: 0 6px 18px 0 rgba(33, 52, 120, 0.14);
  --shadow-lg: 0 16px 36px 0 rgba(14,27,47,0.28);

  /* Transitions */
  --transition-fast: 120ms cubic-bezier(0.3,0.7,0.4,1);
  --transition-med: 240ms cubic-bezier(0.22,0.61,0.36,1);
  --transition-slow: 420ms cubic-bezier(0.33,1,0.68,1);
}

/* ========================================
   RESET & NORMALIZE
======================================== */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
  background-color: var(--color-background);
}
*, *::before, *::after {
  box-sizing: inherit;
}
body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure {
  margin: 0;
  padding: 0;
}
ul, ol {
  list-style: none;
}
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
input, button, textarea, select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
  padding: 0;
  margin: 0;
}
a {
  text-decoration: none;
  color: inherit;
}

/* ========================================
   BASE STYLES
======================================== */
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.4s var(--transition-med);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--color-primary-accent);
  margin-bottom: var(--space-2);
  margin-top: 0;
  line-height: var(--line-height-tight);
}
h1 {
  font-size: clamp(2rem, 5vw, var(--font-size-xxl));
  letter-spacing: -1px;
}
h2 {
  font-size: clamp(1.5rem, 3vw, var(--font-size-xl));
}
h3 {
  font-size: var(--font-size-lg);
}
h4 {
  font-size: var(--font-size-md);
}
h5 {
  font-size: var(--font-size-base);
}
h6 {
  font-size: var(--font-size-sm);
}

p {
  max-width: 65ch;
  margin-bottom: var(--space-3);
  color: var(--color-text);
  line-height: var(--line-height-loose);
  font-size: var(--font-size-base);
}
section {
  margin-bottom: var(--space-8);
}
section h2 {
  text-align: center;
  margin-bottom: var(--space-4);
}

/* Links */
a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
  cursor: pointer;
}
a:hover, a:active {
  color: var(--color-primary-accent);
  text-decoration: underline;
}
a:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--color-primary-accent);
  color: #fff;
}

/* ========================================
   UTILITIES
======================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}
@media (max-width: 768px) {
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
}
.flex {
  display: flex;
}
.inline-flex {
  display: inline-flex;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-column {
  flex-direction: column;
}
.grid {
  display: grid;
}
.grid-center {
  display: grid;
  place-items: center;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
  white-space: nowrap;
}

/* Space scale utility classes (optional example) */
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.pt-4 { padding-top: var(--space-4); }
.pb-4 { padding-bottom: var(--space-4); }

/* ========================================
   COMPONENTS
======================================== */
.button, button, [type="button"], [type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  font-weight: 500;
  line-height: var(--line-height-tight);
  color: #fff;
  background: linear-gradient(90deg, var(--color-primary) 80%, var(--color-primary-accent) 100%);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
  border: none;
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: background var(--transition-med), box-shadow var(--transition-med), transform var(--transition-fast);
  text-shadow: 0 1px 2px rgba(24,33,58,0.20);
}
.button:hover, button:hover, [type="button"]:hover, [type="submit"]:hover {
  background: linear-gradient(90deg, var(--color-primary-accent) 0%, var(--color-primary) 120%);
  box-shadow: var(--shadow);
  transform: translateY(-2px) scale(1.02);
}
.button:focus-visible, button:focus-visible, [type="button"]:focus-visible, [type="submit"]:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 2px;
}
.button:disabled, button:disabled, [type="button"]:disabled, [type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--color-gray-600);
}

input, select, textarea {
  width: 100%;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-med);
  box-shadow: none;
  margin-bottom: var(--space-3);
}
input:focus-visible, select:focus-visible, textarea:focus-visible {
  border-color: var(--color-primary-accent);
  box-shadow: 0 0 0 2px var(--color-primary-accent);
  outline: none;
}
input:disabled, select:disabled, textarea:disabled {
  background: var(--color-muted);
  opacity: 0.6;
  cursor: not-allowed;
}

.card {
  background: linear-gradient(115deg, var(--color-surface) 80%, var(--color-background) 120%);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px) scale(1.01);
}

/* ========================================
   HEADER & FOOTER STYLES (from home.css)
======================================== */
.site-header {
  background: linear-gradient(90deg, var(--color-surface) 60%, var(--color-background) 100%);
  box-shadow: var(--shadow-xs);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-nav {
  height: 72px;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: var(--font-size-xl);
  font-weight: bold;
  color: var(--color-primary-accent);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  letter-spacing: -1px;
}
.logo-icon {
  font-size: 1.5em;
}
/* Desktop nav */
.nav-links {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}
.nav-links li a {
  font-size: var(--font-size-sm);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  white-space: nowrap;
}
.nav-links li a:focus, .nav-links li a:hover {
  background: var(--color-gray-700);
  color: var(--color-primary-accent);
}
/* Mobile nav */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}
.hamburger {
  width: 28px;
  height: 2px;
  background: var(--color-primary-accent);
  display: block;
  position: relative;
}
.hamburger::before, .hamburger::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 2px;
  background: var(--color-primary-accent);
  transition: transform var(--transition-fast);
}
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }
@media (max-width: 960px) {
  .nav-links {
    position: fixed;
    top: 72px;
    right: 0;
    left: 0;
    background: var(--color-surface);
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-6) 0;
    box-shadow: var(--shadow-lg);
    z-index: 99;
    transform: translateY(-200%);
    opacity: 0;
    pointer-events: none;
    transition: transform 220ms, opacity 180ms;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-menu-toggle {
    display: block;
    z-index: 102;
  }
}

/* ========== Footer ========== */
.site-footer {
  background: var(--color-surface);
  color: var(--color-gray-200);
  padding: var(--space-8) 0 calc(var(--space-8) + 62px) 0;
  margin-top: auto;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  flex-wrap: wrap;
}
.footer-brand { max-width: 320px; }
.footer-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-accent);
  margin-bottom: var(--space-2);
}
.footer-desc {
  color: var(--color-gray-300);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
}
.footer-nav ul,
.footer-legal ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-nav li, .footer-legal li {
  margin-bottom: var(--space-2);
}
.footer-nav a, .footer-legal a {
  color: var(--color-gray-100);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}
.footer-nav a:hover, .footer-legal a:hover {
  color: var(--color-primary-accent);
}
.footer-legal {
  min-width: 180px;
  font-size: var(--font-size-xs);
}
.copy {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-3);
}
@media (max-width: 850px) {
  .footer-main {
    flex-direction: column;
    gap: var(--space-8);
  }
  .footer-brand, .footer-legal, .footer-nav {
    max-width: 100%;
  }
}

/* ========== Cookie consent banner ========== */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-background);
  box-shadow: 0 -6px 24px rgba(10, 17, 36, 0.30);
  z-index: 9999;
  color: var(--color-gray-200);
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: transform .3s, opacity .2s;
}
.cookie-banner.show {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.cookie-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-3) var(--space-4);
}
.cookie-container p {
  font-size: var(--font-size-sm);
  margin: 0;
  color: var(--color-gray-100);
}
.cookie-container a { color: var(--color-primary); text-decoration: underline; }
.cookie-actions {
  display: flex;
  gap: var(--space-2);
}
.button.secondary {
  background: var(--color-muted);
  color: var(--color-gray-300);
}
.button.secondary:hover {
  background: var(--color-gray-700);
  color: #fff;
}
@media (max-width: 700px) {
  .cookie-container {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-3);
  }
  .cookie-actions { justify-content: flex-end; }
}

/* ========================================
   ACCESSIBILITY
======================================== */
:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 1.5px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation-duration: 0s !important;
    animation-delay: 0s !important;
  }
}