/* ===========================================================================
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-background: #181e2f;
  --color-surface: #232849;
  --color-text: #f6f6fc;
  --color-primary: #5df2ff;
  --color-primary-hover: #28c0d9;
  --color-success: #3ecf8e;
  --color-warning: #ffc847;
  --color-danger: #ff467e;
  --color-gray-50: #f6f6fc;
  --color-gray-100: #e1e3ed;
  --color-gray-200: #c1c4d6;
  --color-gray-400: #7e85ad;
  --color-gray-600: #4c517a;
  --color-gray-800: #232849;
  
  /* Typography */
  --font-sans: 'Nunito', 'Segoe UI', 'Montserrat', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Menlo', 'Consolas', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.75rem;
  --line-height-tight: 1.2;
  --line-height-base: 1.6;
  --line-height-loose: 1.9;
  
  /* Spacing (0–96px, 4px step) */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  
  /* Radius, Shadows, Transitions */
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 32px;
  --shadow-xs: 0 2px 6px 0 rgba(0, 0, 0, 0.1);
  --shadow-md: 0 6px 24px -2px rgba(93, 242, 255, 0.15);
  --shadow-lg: 0 12px 48px -8px rgba(40,192,217,0.18);
  --transition-fast: 120ms cubic-bezier(0.4,0,0.2,1);
  --transition: 240ms cubic-bezier(0.4,0,0.2,1);
}

/* ===========================================================================
   Reset / Normalize
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd {
  margin: 0;
}
ul[role='list'], ol[role='list'], menu {
  list-style: none;
  margin: 0;
  padding: 0;
}
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
}
input, button, textarea, select {
  font: inherit;
  color: inherit;
}
button, [type='button'], [type='submit'], [type='reset'] {
  background: none;
  border: none;
  padding: 0;
}
a {
  text-decoration-skip-ink: auto;
  color: inherit;
}

/* Respect prefers-reduced-motion for transitions & animations */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ===========================================================================
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  color: var(--color-text);
  background: linear-gradient(120deg, #181e2f 55%, #242c51 100%);
  line-height: var(--line-height-base);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--color-primary);
  line-height: var(--line-height-tight);
}
h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-6);
  letter-spacing: -2px;
}
h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}
h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}
h4, h5, h6 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

p {
  color: var(--color-text);
  margin-bottom: var(--space-4);
  max-width: 75ch;
  line-height: var(--line-height-loose);
  text-align: left;
}

/* Link styles */
a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color var(--transition);
  outline: none;
}
a:hover,
a:focus-visible {
  color: var(--color-primary-hover);
  text-decoration: underline wavy;
}
a:active {
  color: var(--color-success);
}

/* Focus Styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  transition: outline-color var(--transition-fast);
}

/* ===========================================================================
   Utilities
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}
@media (max-width: 700px) {
  .container {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
}

.flex {
  display: flex;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-column {
  display: flex;
  flex-direction: column;
}
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

.grid {
  display: grid;
}
.grid-center {
  display: grid;
  place-items: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ===========================================================================
   Components
   ========================================================================== */
/* Button */
.button,
button,
input[type="button"],
input[type="submit"] {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--font-size-md);
  background: linear-gradient(90deg, var(--color-primary) 85%, #64fff0 100%);
  color: var(--color-background);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  box-shadow: var(--shadow-md);
  letter-spacing: 1px;
  text-shadow: 0 2px 10px rgba(93,242,255,0.14);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.button:hover,
.button:focus-visible,
button:hover,
button:focus-visible,
input[type="button"]:hover,
input[type="button"]:focus-visible,
input[type="submit"]:hover,
input[type="submit"]:focus-visible {
  background: linear-gradient(90deg, var(--color-primary-hover) 60%, var(--color-primary) 100%);
  color: var(--color-background);
}
.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  filter: grayscale(30%);
}

/* Input & Form Elements */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  font-size: var(--font-size-md);
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-gray-600);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  margin-bottom: var(--space-4);
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-hover);
}
input:disabled,
select:disabled,
textarea:disabled {
  background: var(--color-gray-800);
  opacity: 0.6;
  cursor: not-allowed;
}

/* Card */
.card {
  background: linear-gradient(120deg, var(--color-surface), #252a4f 100%);
  color: var(--color-text);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: var(--space-8);
  transition: box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover,
.card:focus-within {
  box-shadow: 0 16px 80px 0 rgba(40,192,217,0.30);
}

/* ===========================================================================
   Header & Footer styles (from home.css)
   ========================================================================== */

/* Header Section */
.main-header {
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xl);
  font-weight: 900;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -1px;
}
.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 2px 10px var(--color-primary));
}
.site-title {
  font-family: var(--font-sans);
  font-weight: 800;
}
.nav-menu {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  list-style: none;
  transition: max-height var(--transition-fast);
  flex-wrap: wrap;
}
.nav-menu li a {
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}
.nav-menu li a:hover, .nav-menu li a:focus-visible {
  background: var(--color-primary);
  color: var(--color-background);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  gap: 4px;
  width: 34px;
  height: 34px;
  justify-content: center;
  align-items: center;
  padding: 0;
}
.nav-toggle span {
  display: block;
  background: var(--color-primary);
  height: 4px;
  border-radius: 3px;
  transition: all var(--transition-fast);
  width: 100%;
}

@media (max-width: 900px) {
  .nav-menu {
    position: absolute;
    right: 0;
    top: 64px;
    background: var(--color-surface);
    flex-direction: column;
    gap: 0;
    min-width: 220px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 1001;
    overflow: hidden;
    max-height: 0;
    visibility: hidden;
    opacity: 0;
    transition: max-height var(--transition), opacity var(--transition);
  }
  .nav-menu.open {
    max-height: 420px;
    visibility: visible;
    opacity: 1;
    transition: max-height var(--transition), opacity var(--transition);
  }
  .nav-menu li {
    border-bottom: 1px solid var(--color-gray-800);
  }
  .nav-menu li:last-child {
    border-bottom: none;
  }
  .nav-menu li a {
    display: block;
    width: 100%;
    padding: var(--space-4) var(--space-6);
    text-align: left;
    font-size: var(--font-size-lg);
  }
  .nav-toggle {
    display: flex;
  }
}

/* Footer Section */
.main-footer {
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-8) 0 var(--space-16) 0;
  position: relative;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-12);
  justify-content: space-between;
}
.footer-site-name {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  font-weight: 800;
}
.footer-nav, .footer-legal {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-nav li a, .footer-legal li a {
  color: var(--color-gray-100);
  text-decoration: none;
  font-size: var(--font-size-md);
  transition: color var(--transition-fast);
}
.footer-nav li a:hover, .footer-legal li a:hover,
.footer-nav li a:focus-visible, .footer-legal li a:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
}
.footer-copyright {
  margin-top: var(--space-8);
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}
@media (max-width: 700px) {
  .footer-inner {
    flex-direction: column;
    gap: var(--space-8);
    align-items: flex-start;
  }
}

/* Cookie Consent Banner */
.cookie-consent {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100vw;
  background: var(--color-gray-800);
  color: var(--color-gray-50);
  box-shadow: 0 -6px 32px -8px #28c0d980;
  padding: var(--space-4) var(--space-8);
  z-index: 1200;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  transition: opacity var(--transition-fast), bottom var(--transition-fast);
}
.cookie-consent[hidden] {
  display: none !important;
  opacity: 0;
}
.cookie-consent p {
  margin-bottom: 0;
  flex: 2 1 320px;
  max-width: 500px;
}
.cookie-buttons {
  display: flex;
  gap: var(--space-2);
}

@media (max-width: 700px) {
  .cookie-consent {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-2);
  }
  .cookie-consent p {
    max-width: 90vw;
  }
  .cookie-buttons {
    width: 100%;
    flex-wrap: wrap;
    gap: var(--space-2);
  }
}

/* Miscellaneous for header/footer accessibility */
:focus-visible {
  outline-color: var(--color-primary-hover);
}

/* Improve custom button outline for accessibility */
.button:focus-visible, .button.button-outline:focus-visible {
  box-shadow: 0 0 0 3px var(--color-primary-hover);
  outline: none;
}

/* ===========================================================================
   End of base.css
   ========================================================================== */