/* =====================
   Variables
===================== */
:root {
  /* Colors */
  --color-background: #fafafb;
  --color-surface: #fff;
  --color-text: #212127;
  --color-primary: #1a3d8f;
  --color-primary-hover: #163475;
  --color-success: #27835c;
  --color-warning: #e9a118;
  --color-danger: #e44444;
  --color-gray-100: #f4f5f7;
  --color-gray-200: #edeef2;
  --color-gray-300: #e2e4ea;
  --color-gray-400: #bbbcc2;
  --color-gray-500: #888a92;
  --color-gray-600: #585b68;
  --color-gray-700: #35363c;
  /* Typography */
  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  --font-size-xs: 0.8125rem; /* 13px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.5rem;    /* 24px */
  --font-size-2xl: 2rem;     /* 32px */
  --line-height-tight: 1.15;
  --line-height-base: 1.6;
  --line-length: 60ch;
  /* Spacing (0–96px, 4px step) */
  --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-20: 80px;
  --space-24: 96px;
  /* Radius, shadow, transition */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-xs: 0 1px 2px 0 rgba(22,24,31,0.04);
  --shadow-sm: 0 2px 8px 0 rgba(22,24,31,0.06);
  --shadow-md: 0 4px 24px 0 rgba(22,24,31,0.10);
  --shadow-lg: 0 8px 32px 0 rgba(22,24,31,0.13);
  --transition-fast: 0.15s;
  --transition-base: 0.3s;
  --transition-slow: 0.5s;
}

/* =====================
   Reset & Normalize
===================== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body,
h1, h2, h3, h4, h5, h6,
p,
ul, ol,
figure,
dl {
  margin: 0;
  padding: 0;
  font-weight: normal;
}

body {
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast) cubic-bezier(.4,0,.2,1);
}
a:hover, a:focus-visible {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Remove number spinners in inputs for a cleaner look */
input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type=number] {
  -moz-appearance: textfield;
}

[tabindex="-1"]:focus:not(:focus-visible) {
  outline: none;
}

code, pre {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

/* =====================
   Base Styles
===================== */
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: -0.02em;
}
h1 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-8);
}
h2 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-6);
}
h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-5);
}
h4, h5, h6 {
  font-size: var(--font-size-base);
  margin-top: var(--space-4);
}
p {
  margin-bottom: var(--space-4);
  color: var(--color-text);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

hr {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: var(--space-6) 0;
}

/* =====================
   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 !important;
}
.flex-col {
  flex-direction: column !important;
}
.flex-row {
  flex-direction: row !important;
}
.flex-center {
  justify-content: center !important;
  align-items: center !important;
}
.grid {
  display: grid !important;
}
.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="submit"],
input[type="button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-5);
  min-height: 40px;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.2;
  color: #fff;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
  cursor: pointer;
  transition: background var(--transition-fast) cubic-bezier(.4,0,.2,1),
    box-shadow var(--transition-fast) cubic-bezier(.4,0,.2,1),
    transform var(--transition-fast) cubic-bezier(.4,0,.2,1);
}
.button:hover,
button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
.button:focus-visible,
button:focus-visible,
input[type="submit"]:focus-visible,
input[type="button"]:focus-visible {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-sm);
  outline: 2px solid var(--color-primary-hover);
  outline-offset: 2px;
}
.button:disabled,
button:disabled,
input:disabled[type="submit"],
input:disabled[type="button"] {
  background: var(--color-gray-300);
  color: var(--color-gray-500);
  cursor: not-allowed;
  box-shadow: none;
}

input,
select,
textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: border-color var(--transition-fast);
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 0;
}
input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}
input:disabled,
select:disabled,
textarea:disabled {
  background: var(--color-gray-100);
  color: var(--color-gray-400);
  cursor: not-allowed;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-8);
  overflow: hidden;
  transition: box-shadow var(--transition-fast) cubic-bezier(.4,0,.2,1),
    transform var(--transition-fast) cubic-bezier(.4,0,.2,1);
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.012);
}

/* =====================
   Header & Footer styles
===================== */
/* Header */
.ds-header {
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
  position: sticky;
  top: 0;
  z-index: 40;
}
.ds-header__navwrap {
  min-height: 64px;
  justify-content: space-between;
  align-items: center;
}
.ds-header__brand {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  text-decoration: none;
  padding-right: var(--space-8);
}
.ds-header__nav {
  position: relative;
  display: flex;
  align-items: center;
}
.ds-header__list {
  display: flex;
  gap: var(--space-4);
  list-style: none;
}
.ds-header__menu-btn {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  margin-left: var(--space-4);
  cursor: pointer;
}
.ds-header__menu-icon {
  width: 28px;
  height: 3px;
  background: var(--color-primary);
  display: block;
  box-shadow: 0 8px 0 0 var(--color-primary), 0 16px 0 0 var(--color-primary);
  border-radius: var(--radius-xs);
  position: relative;
}
@media (max-width: 950px) {
  .ds-header__list {
    gap: var(--space-2);
    font-size: 1rem;
  }
}
@media (max-width: 820px) {
  .ds-header__menu-btn { display: block; }
  .ds-header__list {
    position: absolute;
    right: 0;
    top: 52px;
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    flex-direction: column;
    padding: var(--space-6) var(--space-8);
    min-width: 180px;
    border-radius: var(--radius-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: 99;
  }
  .ds-header__list.is-open {
    opacity: 1;
    pointer-events: all;
  }
}
/* Accessibility improvements for header/footer navigation links */
.ds-header__list a,
.ds-footer__list a,
.ds-footer__legal-list a {
  outline-offset: 2px;
}

/* Footer */
.ds-footer {
  background: var(--color-surface);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  box-shadow: var(--shadow-xs);
  margin-top: var(--space-24);
}
.ds-footer__top {
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-10);
}
.ds-footer__brand {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-primary);
}
.ds-footer__list,
.ds-footer__legal-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.ds-footer__list li a, .ds-footer__legal-list li a {
  color: var(--color-text);
  font-size: var(--font-size-sm);
}
.ds-footer__list li a:hover, .ds-footer__legal-list li a:hover, .ds-footer__list li a:focus-visible, .ds-footer__legal-list li a:focus-visible {
  color: var(--color-primary);
}
.ds-footer__copyright {
  margin-top: var(--space-8);
  text-align: center;
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}
@media (max-width: 900px) {
  .ds-footer__top { flex-direction: column; align-items: flex-start; gap: var(--space-6); }
}

/* =====================
   Cookie Banner styles
===================== */
.ds-cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  background: var(--color-surface);
  border-top: 1px solid var(--color-gray-300);
  box-shadow: var(--shadow-xs);
  z-index: 9999;
  display: flex;
  justify-content: center;
  padding: var(--space-4) 0;
  opacity: 1;
  transition: opacity var(--transition-base) cubic-bezier(.4,0,.2,1);
}
.ds-cookie-banner__content {
  max-width: 880px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.ds-cookie-banner__controls {
  display: flex;
  gap: var(--space-4);
}
.ds-cookie-banner__button {
  min-width: 120px;
  font-size: var(--font-size-base);
}
.ds-cookie-banner__button--secondary {
  background: var(--color-gray-200);
  color: var(--color-primary);
}
.ds-cookie-banner__button--secondary:hover, .ds-cookie-banner__button--secondary:focus-visible {
  background: var(--color-primary-hover);
  color: #fff;
}
@media (max-width: 600px) {
  .ds-cookie-banner__content { padding-left: var(--space-2); padding-right: var(--space-2); }
  .ds-cookie-banner__controls { flex-direction: column; width: 100%; gap: var(--space-2); }
}

/* =====================
   Accessibility
===================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
html:focus-within {
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Responsive font sizing */
@media (max-width: 600px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.125rem; }
  h3 { font-size: 1rem; }
  .container { padding-left: var(--space-2); padding-right: var(--space-2); }
  .card { padding: var(--space-4); }
}

/* Utility: visually hidden (for labels if needed) */
.visually-hidden { 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; }