/* =========================
   Variables
   ========================= */
:root {
  /* Colors */
  --color-background: #f7f9fb;
  --color-text: #202340;
  --color-primary: #0066ee;
  --color-primary-hover: #0053ba;
  --color-success: #16c47e;
  --color-warning: #ffae1a;
  --color-danger: #fa4066;
  --color-neutral-50: #ffffff;
  --color-neutral-100: #f3f3f6;
  --color-neutral-200: #e6e7ea;
  --color-neutral-300: #cfd0d6;
  --color-neutral-400: #b5b7be;
  --color-neutral-500: #9294a0;
  --color-neutral-700: #585b6c;
  --color-neutral-900: #212235;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Fira Mono', 'Consolas', monospace;
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.25rem;   /* 20px */
  --font-size-xl: 1.5rem;    /* 24px */
  --font-size-2xl: 2rem;     /* 32px */
  --line-height-tight: 1.2;
  --line-height-base: 1.6;
  --line-length: 60ch;

  /* Spacing (0 – 96px, 4px steps) */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-8: 3rem;      /* 48px */
  --space-12: 4.5rem;   /* 72px */
  --space-16: 6rem;     /* 96px */

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

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(32, 35, 64, 0.06);
  --shadow-sm: 0 2px 8px rgba(32,35,64,0.10);
  --shadow-base: 0 4px 16px rgba(32,35,64,0.12);
  --shadow-lg: 0 12px 32px rgba(32,35,64,0.14);

  /* Transition */
  --transition-fast: 0.15s cubic-bezier(0.4,0,0.2,1);
  --transition-base: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* =========================
   Reset / Normalize
   ========================= */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption, blockquote, dl, dd {
  margin: 0;
  padding: 0;
  font-weight: inherit;
  font-size: inherit;
}

body {
  min-height: 100vh;
  line-height: var(--line-height-base);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* Remove tap highlight on mobile */
html {
  -webkit-tap-highlight-color: transparent;
}

/* =========================
   Base
   ========================= */
body {
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 400;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-3);
}
h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: 1.1rem; }
h5 { font-size: 1rem; }
h6 { font-size: var(--font-size-sm); }

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-base);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color var(--transition-fast);
  cursor: pointer;
}
a:hover, a:focus-visible {
  color: var(--color-primary-hover);
  outline: none;
}
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* =========================
   Utilities
   ========================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.flex {
  display: flex;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-column {
  flex-direction: column;
}
.flex-wrap {
  flex-wrap: wrap;
}

.grid {
  display: grid;
  gap: var(--space-4);
}
.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.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;
}

.text-center {
  text-align: center;
}

.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,
input[type="submit"],
input[type="button"] {
  display: inline-block;
  padding: var(--space-2) var(--space-5);
  font-size: var(--font-size-base);
  font-weight: 600;
  background: var(--color-primary);
  color: var(--color-neutral-50)!important;
  border-radius: var(--radius-base);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  user-select: none;
}

.button:hover,
button:hover,
.button:focus-visible,
button:focus-visible {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-base);
  outline: 2px solid var(--color-primary-hover);
  outline-offset: 2px;
  transform: translateY(-1px) scale(1.01);
}

.button:active,
button:active {
  background: var(--color-primary);
  box-shadow: var(--shadow-xs);
  transform: scale(0.97);
}
.button:disabled,
button:disabled {
  background: var(--color-neutral-300);
  color: var(--color-neutral-500);
  cursor: not-allowed;
  opacity: 0.7;
}

input,
select,
textarea {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background: var(--color-neutral-50);
  color: var(--color-text);
  border: 1.5px solid var(--color-neutral-300);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  font-size: var(--font-size-base);
  transition: border var(--transition-fast), box-shadow var(--transition-fast);
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  box-shadow: var(--shadow-base);
}
input:disabled,
select:disabled,
textarea:disabled {
  background: var(--color-neutral-100);
  color: var(--color-neutral-400);
  cursor: not-allowed;
  opacity: 0.7;
}

.card {
  background: var(--color-neutral-50);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  padding: var(--space-5);
  transition: box-shadow var(--transition-base), transform var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px) scale(1.01);
}

/* =========================
   Header & Footer styles
   ========================= */
.header-container {
  justify-content: space-between;
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}
.site-logo a {
  font-size: var(--font-size-xl);
  font-weight: 700;
  text-decoration: none;
  color: var(--color-primary);
  letter-spacing: .02em;
}
.main-nav {
  position: relative;
}
.menu-toggle {
  background: none;
  border: none;
  display: none;
  align-items: center;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-base);
}
.menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary-hover);
}
.nav-list {
  display: flex;
  gap: var(--space-4);
}
.hide-mobile {
  display: flex;
}
.nav-list a {
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-base);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-list a:hover, .nav-list a:focus-visible {
  background: var(--color-primary);
  color: var(--color-neutral-50);
}
.site-footer {
  background: var(--color-neutral-200);
  padding: var(--space-5) 0 0 0;
  margin-top: var(--space-16);
}
.footer-flex {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}
.footer-site-name a {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}
.footer-nav ul, .footer-legal ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-nav a, .footer-legal a {
  text-decoration: none;
  color: var(--color-neutral-700);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: color var(--transition-fast);
}
.footer-nav a:hover, .footer-legal a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  padding: var(--space-3) 0;
}

/* =========================
   Popups & Consent Banners
   ========================= */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  z-index: 2000;
  background: #fff;
  color: var(--color-text);
  box-shadow: 0 -2px 24px 0 rgba(32,35,64,0.10);
  display: none;
  justify-content: center;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
}
.cookie-banner.visible {
  display: flex;
}
.cookie-content {
  width: 100%;
  max-width: 840px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.cookie-content span {
  max-width: 38ch;
}
.cookie-actions {
  display: flex;
  gap: var(--space-2);
}
.cookie-banner .button.secondary {
  background: var(--color-neutral-300);
  color: var(--color-neutral-900);
}
.cookie-banner .button.secondary:hover {
  background: var(--color-danger);
  color: #fff;
}

/* Responsive Header & Footer adjustments */
@media (max-width: 900px) {
  .header-container {
    flex-direction: row;
  }
  .footer-flex {
    flex-direction: column;
    gap: var(--space-2);
    align-items: flex-start;
  }
}
@media (max-width: 700px) {
  .nav-list {
    display: none;
    position: absolute;
    right: 0;
    top: 36px;
    background: var(--color-neutral-100);
    flex-direction: column;
    min-width: 200px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1020;
    padding: var(--space-2) 0;
    gap: 0;
  }
  .nav-list.open {
    display: flex;
  }
  .nav-list li {
    width: 100%;
  }
  .nav-list a {
    display: block;
    text-align: left;
    padding: var(--space-3);
    border-radius: 0;
    width: 100%;
  }
  .hide-mobile {
    display: none !important;
  }
  .menu-toggle {
    display: flex;
  }
}
@media (max-width: 480px) {
  .footer-flex {
    flex-direction: column;
    align-items: flex-start;
  }
  .cookie-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

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

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 900px) {
  .container {
    max-width: 100%;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  h1 { font-size: var(--font-size-xl); }
  h2 { font-size: var(--font-size-lg); }
  .container {
    padding-left: var(--space-1);
    padding-right: var(--space-1);
  }
  .card {
    padding: var(--space-3);
    border-radius: var(--radius-base);
  }
}