/* ------------------------------
   Variables
------------------------------ */
:root {
  /* Colors */
  --color-background: #f8f9fb;
  --color-surface: #fff;
  --color-text: #15181c;
  --color-primary: #1968f4;
  --color-primary-hover: #1550c6;
  --color-success: #14b885;
  --color-warning: #f5a623;
  --color-danger: #e33d3d;
  --color-muted: #6c7280;
  --color-border: #e5e7ed;
  --color-gray-50: #f6f7fa;
  --color-gray-100: #e6e8ef;
  --color-gray-200: #ccd1db;
  --color-gray-300: #b2b9c8;
  --color-gray-400: #8d95a8;

  /* Typography */
  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Menlo', monospace;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-md: 1rem;       /* 16px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 2rem;      /* 32px */
  --font-size-3xl: 2.5rem;    /* 40px */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-loose: 1.7;

  /* Spacing Scale */
  --space-0: 0px;
  --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, Shadows, Transitions */
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-1: 0 1px 4px rgba(30, 32, 37, 0.07);
  --shadow-2: 0 4px 16px rgba(30, 32, 37, 0.12);
  --transition-fast: 120ms cubic-bezier(0.4,0,0.2,1);
  --transition-base: 220ms cubic-bezier(0.4,0,0.2,1);
}

/* ------------------------------
   Reset / Normalize
------------------------------ */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
}
*, *::before, *::after {
  box-sizing: inherit;
}
body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, dl, dt, dd, figure, figcaption, blockquote, pre {
  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;
  width: 100%;
}
button, input, textarea, select {
  font: inherit;
  background: none;
  border: none;
  outline: none;
  appearance: none;
}

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

/* ------------------------------
   Base Styles
------------------------------ */
body {
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}
h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-8);
}
h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-6);
}
h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-5);
}
h4 {
  font-size: var(--font-size-lg);
}
h5 {
  font-size: var(--font-size-md);
}
h6 {
  font-size: var(--font-size-sm);
}
p {
  margin-bottom: var(--space-5);
  line-height: var(--line-height-loose);
  color: var(--color-text);
}
a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color var(--transition-base);
}
a:hover, a:focus-visible {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
a:focus-visible {
  outline: 2px solid var(--color-primary-hover);
  outline-offset: 2px;
}

/* ------------------------------
   Utilities
------------------------------ */
.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}
.flex {
  display: flex;
  gap: var(--space-4);
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.grid {
  display: grid;
  gap: var(--space-4);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ------------------------------
   Components
------------------------------ */
.button, button, [type="button"], [type="submit"] {
  cursor: pointer;
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: var(--font-size-md);
  padding: var(--space-3) var(--space-6);
  box-shadow: var(--shadow-1);
  transition: background var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}
.button:hover, .button:focus-visible, button:hover, button:focus-visible, [type="button"]:hover, [type="button"]:focus-visible, [type="submit"]:hover, [type="submit"]:focus-visible {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-2);
}
.button:active, button:active, [type="button"]:active, [type="submit"]:active {
  background: var(--color-primary-hover);
}
.button:disabled, button:disabled, [type="button"]:disabled, [type="submit"]:disabled {
  opacity: 0.6;
  pointer-events: none;
}

input, textarea, select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: none;
  transition: border-color var(--transition-base);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
input:disabled, textarea:disabled, select:disabled {
  background: var(--color-gray-50);
  opacity: 0.7;
  cursor: not-allowed;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  padding: var(--space-8);
  transition: box-shadow var(--transition-base);
  border: 1px solid var(--color-gray-100);
}
.card:hover, .card:focus-within {
  box-shadow: 0 6px 24px rgba(30, 32, 37, 0.17);
}

/* Accessibility: focus-visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ------------------------------
   Header & Footer styles
------------------------------ */
.site-header {
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}
.logo {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--font-size-md);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-xs);
  transition: background var(--transition-base);
}
.nav-links a:hover, .nav-links a:focus-visible {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

/* Mobile nav */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
}
.menu-icon {
  width: 26px;
  height: 3px;
  background: var(--color-primary);
  position: relative;
  display: inline-block;
}
.menu-icon::before, .menu-icon::after {
  content: '';
  position: absolute;
  width: 26px;
  height: 3px;
  background: var(--color-primary);
  left: 0;
  transition: transform var(--transition-base);
}
.menu-icon::before {
  top: -8px;
}
.menu-icon::after {
  top: 8px;
}

@media (max-width: 700px) {
  .navbar {
    flex-wrap: wrap;
    gap: var(--space-3);
  }
  .nav-links {
    position: absolute;
    top: 64px;
    right: 0;
    left: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-2);
    display: none;
    padding: var(--space-6) 0;
    z-index: 100;
    gap: var(--space-4);
    width: 100vw;
    align-items: flex-start;
  }
  .nav-links.open {
    display: flex;
  }
  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    margin-left: var(--space-6);
  }
}

/* Footer */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8) 0;
  font-size: var(--font-size-sm);
  margin-top: var(--space-16);
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  justify-content: space-between;
  align-items: flex-start;
}
.footer-col {
  flex: 1 1 200px;
  min-width: 180px;
}
.footer-logo {
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  display: inline-block;
  margin-bottom: var(--space-4);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.legal-links a {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

@media (max-width: 500px) {
  .footer-grid {
    flex-direction: column;
    gap: var(--space-6);
  }
}

/* Cookie Consent Banner */
.cookie-consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  box-shadow: 0 -2px 16px rgba(30,32,37,0.07);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: center;
  z-index: 1030;
  padding: var(--space-6) var(--space-4);
  transition: transform var(--transition-base);
}
.cookie-consent-banner[hidden] {
  display: none;
}
.cookie-consent-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);

  width: 100%;
}
.cookie-consent-text {
  color: var(--color-text);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  text-align: center;
}
.cookie-buttons {
  display: flex;
  gap: var(--space-4);
}
.button.button-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.button.button-outline:hover, .button.button-outline:focus-visible {
  background: var(--color-gray-50);
  color: var(--color-primary-hover);
}