/* ==================================================
   Variables: Colors, Typography, Spacing, Radius, Shadows, Transitions
   ================================================== */
:root {
  /* Colors */
  --color-bg: #f8fafc;
  --color-text: #27272a;
  --color-primary: #4967f7;
  --color-primary-hover: #314bd4;
  --color-success: #20c997;
  --color-warning: #fbbf24;
  --color-danger: #f87171;
  --color-neutral-100: #f4f4f5;
  --color-neutral-200: #e5e7eb;
  --color-neutral-300: #d1d5db;
  --color-neutral-400: #9ca3af;
  --color-neutral-700: #374151;
  --color-neutral-900: #18181b;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Fira Mono', 'Consolas', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-length: 68ch;

  /* Spacing (0–96px, 8px scale) */
  --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-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  /* Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(16, 30, 54, 0.04);
  --shadow-sm: 0 2px 6px rgba(16, 30, 54, 0.06);
  --shadow-md: 0 4px 14px rgba(16, 30, 54, 0.08);
  --shadow-lg: 0 8px 32px rgba(16, 30, 54, 0.12);

  /* Transitions */
  --transition-fast: 120ms cubic-bezier(.4,0,.2,1);
  --transition-medium: 240ms cubic-bezier(.4,0,.2,1);
  --transition-slow: 400ms cubic-bezier(.4,0,.2,1);
}

/* ==================================================
   Reset / Normalize
   ================================================== */
html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}
*, *::before, *::after {
  box-sizing: inherit;
}
h1, h2, h3, h4, h5, h6, p, ul, ol, dl, figure {
  margin: 0;
}
ul, ol {
  padding-left: var(--space-4);
}
body {
  margin: 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;
  background: none;
  border: none;
  outline: none;
}
button, [type="button"], [type="submit"] {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
[tabindex="-1"]:focus {
  outline: none !important;
}

/* ==================================================
   Base Styles
   ================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}
h1, h2, h3, h4, h5, h6 {
  color: var(--color-neutral-900);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-3);
}
h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--space-4);
 
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover, a:focus-visible {
  color: var(--color-primary-hover);
  text-decoration: underline;
  outline: none;
}
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==================================================
   Utilities
   ================================================== */
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}
.flex {
  display: flex;
  gap: var(--space-4);
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.grid {
  display: grid;
  gap: var(--space-4);
}
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==================================================
   Components
   ================================================== */
.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  border: none;
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-xs);
  outline: none;
  min-width: 44px; /* touch target */
}
.button:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover,
.button:focus-visible,
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-sm);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.button:active,
button:active {
  transform: translateY(1px) scale(0.99);
}
.button:disabled,
button:disabled,
input[disabled] {
  background: var(--color-neutral-300);
  color: var(--color-neutral-400);
  cursor: not-allowed;
  opacity: 0.7;
  box-shadow: none;
}

input,
select,
textarea {
  width: 100%;
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-base);
  box-shadow: var(--shadow-xs);
  transition: border var(--transition-fast), box-shadow var(--transition-fast);
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  box-shadow: var(--shadow-sm);
}
input[disabled],
select[disabled],
textarea[disabled] {
  background: var(--color-neutral-100);
  color: var(--color-neutral-400);
  cursor: not-allowed;
}

.card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  transition: box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.card:hover,
.card:focus-within {
  box-shadow: var(--shadow-lg);
}

/* ==================================================
   Header & Footer styles
   ================================================== */
/* Header styles */
.header {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 30;
  box-shadow: var(--shadow-xs);
}
.header__container {
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}
.header__logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
}
.header__nav {
  position: relative;
}
.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}
.header__menu-btn {
  display: none;
  background: none;
  border: none;
  margin-left: var(--space-2);
  padding: var(--space-2);
}
.header__menu-icon {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  position: relative;
  border-radius: var(--radius-full);
}
.header__menu-icon::before,
.header__menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}
.header__menu-icon::before {
  top: -8px;
}
.header__menu-icon::after {
  top: 8px;
}

/* Footer styles */
.footer {
  background: #fff;
  color: var(--color-neutral-700);
  box-shadow: var(--shadow-xs);
  margin-top: var(--space-16);
  font-size: var(--font-size-sm);
}
.footer__container {
  padding-top: var(--space-8);
  padding-bottom: var(--space-6);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-6);
  align-items: center;
}
.footer__brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
}
.footer__nav {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  justify-content: center;
}
.footer__quick-links, .footer__legal-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--space-4);
  flex-direction: column;
}
.footer__copyright {
  text-align: right;
  color: var(--color-neutral-400);
}

/* Cookie consent banner styles */
.cookie-banner {
  position: fixed;
  z-index: 99;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  box-shadow: var(--shadow-lg);
  display: flex;
  justify-content: center;
  padding: var(--space-4) var(--space-2);
  transition: transform 0.3s;
}
.cookie-banner[aria-hidden='true'],
.cookie-banner.hidden {
  transform: translateY(120%);
  pointer-events: none;
}
.cookie-banner__content {
  max-width: 700px;
  width: 100%;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-base);
}
.cookie-banner__message {
  flex: 2 1 300px;
}
.cookie-banner__actions {
  flex-shrink: 0;
  gap: var(--space-2);
}

/* Responsive styles for header & footer & cookie banner */
@media (max-width: 900px) {
  .footer__container {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    text-align: center;
  }
  .footer__copyright {
    text-align: center;
  }
}
@media (max-width: 700px) {
  .header__container {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }
  .header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    background: #fff;
    position: absolute;
    top: 110%;
    right: 0;
    min-width: 210px;
    box-shadow: var(--shadow-md);
    padding: var(--space-4);
    border-radius: var(--radius);
    display: none;
  }
  .header__nav-list.open {
    display: flex;
  }
  .header__menu-btn {
    display: inline-flex;
  }
  .footer__nav {
    flex-direction: column;
    gap: var(--space-4);
  }
}
@media (max-width: 480px) {
  .container {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
}

/* ==================================================
   Accessibility
   ================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}