/* =====================================================
   VARIABLES
   ===================================================== */
:root {
  /* Color palette */
  --color-background: #f7f9fa;
  --color-surface: #fff;
  --color-text: #23272f;
  --color-primary: #2366f2;
  --color-primary-dark: #1747ad;
  --color-success: #31c48d;
  --color-warning: #f7b924;
  --color-danger: #ed254e;
  --color-neutral-100: #f5f7fa;
  --color-neutral-200: #e4e8eb;
  --color-neutral-300: #d0d5db;
  --color-neutral-400: #a3a6b1;
  --color-neutral-500: #6b7280;
  --color-neutral-700: #3c4251;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
  --font-size-root: 16px;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --line-height-base: 1.7;
  --line-height-heading: 1.2;

  /* Spacing (scale: 0, 4, 8, 12, ..., 96) */
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(44,62,80,0.03);
  --shadow-sm: 0 2px 4px rgba(44,62,80,0.06);
  --shadow-md: 0 4px 12px rgba(44,62,80,0.09);
  --shadow-lg: 0 8px 24px rgba(44,62,80,0.10);

  /* Transition */
  --transition-fast: 120ms;
  --transition-base: 200ms;
  --transition-slow: 350ms;
}

/* =====================================================
   RESET & NORMALIZE
   ===================================================== */
html {
  box-sizing: border-box;
  font-size: var(--font-size-root);
  scroll-behavior: smooth;
}
*, *::before, *::after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}
body {
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-background);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}
ul, ol {
  list-style-position: outside;
  margin-left: var(--space-4);
}
table {
  border-collapse:collapse;
  width:100%;
}

/* Remove default button/input styles */
button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
  box-shadow: none;
}

/* Respect user motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}

/* =====================================================
   BASE TYPOGRAPHY & ELEMENTS
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--line-height-heading);
  margin-top: 0;
  margin-bottom: var(--space-4);
}
h1 { font-size: var(--font-size-2xl); letter-spacing: -1px; }
h2 { font-size: var(--font-size-xl); letter-spacing: -0.5px; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.95rem; }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color var(--transition-fast) ease;
  outline: none;
}
a:hover, a:focus-visible {
  color: var(--color-primary-dark);
  text-decoration-thickness: 2px;
}
a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
strong, b { font-weight: 600; }
em, i { font-style: italic; }

hr {
  border: none;
  border-bottom: 1px solid var(--color-neutral-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;
}
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.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;
}

/* Margin and padding helpers */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.p-1 { padding: var(--space-1) !important; }
.p-2 { padding: var(--space-2) !important; }
.p-3 { padding: var(--space-3) !important; }
.p-4 { padding: var(--space-4) !important; }
.p-5 { padding: var(--space-5) !important; }

/* =====================================================
   BASIC COMPONENTS
   ===================================================== */
.button, button,
input[type="submit"], input[type="reset"], input[type="button"] {
  display: inline-block;
  padding: 0.5em 1.25em;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-xs);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast) ease, box-shadow var(--transition-base) ease;
}
.button:hover, .button:focus-visible,
button:hover, button:focus-visible,
input[type="submit"]:hover, input[type="submit"]:focus-visible,
input[type="reset"]:hover, input[type="reset"]:focus-visible,
input[type="button"]:hover, input[type="button"]:focus-visible {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
  outline: 2px solid var(--color-primary-dark);
  outline-offset: 2px;
}
.button:disabled,
button:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled,
input[type="button"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--color-neutral-300);
  color: var(--color-neutral-500);
}

input[type="text"], input[type="email"], input[type="password"], input[type="search"],
select, textarea {
  display: block;
  width: 100%;
  padding: 0.5em 1em;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border-color var(--transition-fast) ease, box-shadow var(--transition-base) ease;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(35,102,242,0.13);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
input[disabled], select[disabled], textarea[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--color-neutral-100);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
  transition: box-shadow var(--transition-base) ease, transform var(--transition-base) ease;
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.01);
}

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

/* Header */
.main-header {
  background: var(--color-surface);
  box-shadow: var(--shadow-xs);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  z-index: 20;
  position: sticky;
  top: 0;
}
.site-name a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  text-decoration: none;
  letter-spacing: -0.5px;
}
.main-nav {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
}
.main-nav li a {
  color: var(--color-neutral-700);
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.main-nav li a:hover, .main-nav li a:focus-visible {
  background: var(--color-primary);
  color: #fff;
}
.mobile-menu-toggle {
  background: none;
  border: none;
  display: none;
  padding: var(--space-2);
  margin-left: var(--space-3);
  cursor: pointer;
}

/* Footer */
.main-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-neutral-200);
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
  margin-top: var(--space-8);
  font-size: var(--font-size-sm);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-5);
  align-items: flex-start;
  margin-bottom: var(--space-3);
}
.footer-brand {
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2);
  letter-spacing: -0.5px;
}
.footer-site-name {
  font-size: var(--font-size-lg);
}
.footer-nav ul, .footer-legal ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-nav li, .footer-legal li {
  margin-bottom: var(--space-2);
}
.footer-nav li a, .footer-legal li a {
  color: var(--color-neutral-700);
  text-decoration: none;
  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);
}
.footer-bottom {
  text-align: center;
  color: var(--color-neutral-400);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-neutral-200);
  font-size: var(--font-size-sm);
}

/* Cookie consent banner */
.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0; right: 0;
  width: 100%;
  z-index: 200;
  background: var(--color-neutral-200);
  color: var(--color-text);
  box-shadow: var(--shadow-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
  font-size: var(--font-size-md);
}
.cookie-consent-content {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
}
.cookie-consent-actions .button {
  margin-left: var(--space-2);
}
.button.secondary {
  background: var(--color-neutral-400);
  color: var(--color-surface);
}
.button.secondary:hover, .button.secondary:focus-visible {
  background: var(--color-neutral-700);
  color: #fff;
}

/* Responsiveness for header, footer, nav, and cookie consent */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }
}
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    right: var(--space-2);
    top: 64px;
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    gap: 0;
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    min-width: 180px;
    z-index: 30;
  }
  .main-nav.open {
    display: flex;
  }
  .mobile-menu-toggle {
    display: inline-block;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    text-align: center;
  }
}
@media (max-width: 600px) {
  .cookie-consent-content {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}

/* =====================================================
   ACCESSIBILITY
   ===================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.section-image,.news-hero-image,.tower-db-image {
      width: 100%;
    height: 300px;
    object-fit: cover;
}


@media (max-width: 600px) {
  .container { padding-left: var(--space-2); padding-right: var(--space-2); }
  .card { padding: var(--space-3); }
  h1 { font-size: var(--font-size-xl); }
  h2 { font-size: var(--font-size-lg); }
}