:root {
  --color-indigo: #24243A;
  --color-seafoam: #73D8C5;
  --color-lilac: #C9C4E8;
  --color-ice: #DDECF0;
  --color-pistachio: #C8D9BE;
  --color-apricot: #E9A77C;
  --color-porcelain: #F7F6F1;
  --color-mist: #D9D9D2;
  --color-graphite: #383A42;
  --color-plum: #514B68;

  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-40: 40px;
  --space-64: 64px;
  --space-80: 80px;
  --space-120: 120px;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-soft: 0 4px 24px rgba(36, 36, 58, 0.04);
  --shadow-hover: 0 12px 32px rgba(36, 36, 58, 0.08);

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --glass-bg: rgba(255, 255, 255, 0.4);
  --glass-border: rgba(201, 196, 232, 0.4);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-porcelain);
  color: var(--color-indigo);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5 {
  color: var(--color-indigo);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: var(--space-24); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); margin-bottom: var(--space-24); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); margin-bottom: var(--space-16); }
p { color: var(--color-graphite); margin-bottom: var(--space-16); font-size: 1.125rem; }
a { color: var(--color-indigo); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-seafoam); }
ul, ol { margin-bottom: var(--space-24); padding-left: var(--space-24); color: var(--color-graphite); font-size: 1.125rem; }
li { margin-bottom: var(--space-8); }

.text-meta { font-size: 0.875rem; color: var(--color-plum); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; display: block; margin-bottom: var(--space-8); }

/* Layout & Spacing */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-24);
}

section {
  padding: var(--space-80) 0;
  position: relative;
}

.section-hero {
  padding: var(--space-120) 0 var(--space-80);
  background: radial-gradient(circle at top right, var(--color-ice) 0%, transparent 60%);
}

.grid {
  display: grid;
  gap: var(--space-40);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* Visual Motif Backgrounds */
.bg-motif-lines {
  background-image: linear-gradient(var(--color-mist) 1px, transparent 1px),
                    linear-gradient(90deg, var(--color-mist) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
  opacity: 0.2;
  position: absolute;
  inset: 0;
  z-index: -1;
}

/* Header & Nav */
.site-header {
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(247, 246, 241, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-indigo);
  overflow-wrap: anywhere;
}

.brand svg { width: 24px; height: 24px; fill: none; stroke: var(--color-seafoam); stroke-width: 2; }

.main-nav { display: flex; align-items: center; gap: var(--space-24); }
.nav-links { display: flex; gap: var(--space-24); list-style: none; margin: 0; padding: 0; }
.nav-links a { font-size: 0.95rem; font-weight: 500; }
.nav-links a[aria-current="page"] { color: var(--color-seafoam); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-indigo); margin-bottom: 4px; transition: 0.3s; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px var(--space-24);
  background-color: var(--color-indigo);
  color: var(--color-porcelain) !important;
  border-radius: var(--radius-xl);
  font-weight: 500;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn:hover { background-color: var(--color-seafoam); color: var(--color-indigo) !important; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-secondary { background-color: var(--color-ice); color: var(--color-indigo) !important; }
.btn-secondary:hover { background-color: var(--color-pistachio); }
.btn-alert { background-color: var(--color-apricot); color: var(--color-indigo) !important; }

/* Card System: Glass-Inspired Monograph */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
  height: 100%;
}

.card-img-wrap {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background-color: var(--color-mist);
  aspect-ratio: 4/3;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.card:hover .card-img-wrap img { transform: scale(1.03); }

.card-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-24);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
}

.card-panel h3 { margin-bottom: var(--space-8); font-size: 1.25rem; }
.card-panel p { font-size: 1rem; margin-bottom: var(--space-24); flex-grow: 1; }
.card-panel .btn { align-self: flex-start; }

/* Content Pages Formatting */
.content-article { max-width: 800px; margin: 0 auto; }
.content-article img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-40);
  box-shadow: var(--shadow-soft);
}
.article-section { margin-bottom: var(--space-64); }
.technical-box {
  background: var(--color-ice);
  border-left: 4px solid var(--color-seafoam);
  padding: var(--space-24);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-40) 0;
}
.technical-box h4 { margin-bottom: var(--space-8); color: var(--color-plum); }

/* Forms */
.form-group { margin-bottom: var(--space-24); }
.form-label { display: block; font-weight: 500; margin-bottom: var(--space-8); color: var(--color-indigo); }
.form-control {
  width: 100%;
  padding: 14px var(--space-16);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background: #fff;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-indigo);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus { outline: none; border-color: var(--color-seafoam); box-shadow: 0 0 0 3px rgba(115, 216, 197, 0.2); }
textarea.form-control { resize: vertical; min-height: 120px; }
.is-invalid { border-color: var(--color-apricot); }
.error-msg { color: var(--color-apricot); font-size: 0.875rem; margin-top: 4px; display: none; }
.is-invalid + .error-msg { display: block; }
.form-success {
  display: none;
  background: var(--color-pistachio);
  color: var(--color-indigo);
  padding: var(--space-24);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-24);
}
.form-success.is-visible { display: block; }

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--color-indigo);
  color: var(--color-porcelain);
  padding: var(--space-24);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.4s ease;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.1);
}
.cookie-banner.is-visible { transform: translateY(0); }
.cookie-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-24); max-width: 1280px; margin: 0 auto; }
.cookie-text { flex: 1 1 300px; }
.cookie-text p { color: var(--color-mist); margin: 0; font-size: 0.95rem; }
.cookie-actions { display: flex; gap: var(--space-12); flex-wrap: wrap; }
.btn-cookie { background: var(--color-graphite); color: var(--color-porcelain) !important; border: none; padding: 10px var(--space-16); border-radius: var(--radius-sm); cursor: pointer; }
.btn-cookie:hover { background: var(--color-mist); color: var(--color-indigo) !important; }
.btn-cookie-primary { background: var(--color-seafoam); color: var(--color-indigo) !important; font-weight: 500; }
.btn-cookie-primary:hover { background: var(--color-ice); }

/* Cookie Table */
.cookie-table { width: 100%; border-collapse: collapse; margin-top: var(--space-24); margin-bottom: var(--space-40); }
.cookie-table th, .cookie-table td { padding: var(--space-12); text-align: left; border-bottom: 1px solid var(--color-mist); }
.cookie-table th { background: var(--color-ice); font-weight: 500; color: var(--color-indigo); }

/* Footer */
.site-footer {
  background-color: var(--color-indigo);
  color: var(--color-mist);
  padding: var(--space-64) 0 var(--space-24);
  margin-top: var(--space-80);
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-40); margin-bottom: var(--space-64); }
.footer-col h4 { color: var(--color-porcelain); margin-bottom: var(--space-16); font-size: 1.125rem; }
.footer-col h4 a { color: inherit; text-decoration: none; }
.footer-col h4 a:hover { color: var(--color-seafoam); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: var(--space-12); }
.footer-links a { color: var(--color-mist); font-size: 0.95rem; }
.footer-links a:hover { color: var(--color-seafoam); }
.footer-bottom { border-top: 1px solid var(--color-graphite); padding-top: var(--space-24); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-16); font-size: 0.875rem; }
.footer-bottom p { margin: 0; color: var(--color-mist); font-size: 0.875rem; }
.footer-legal a { color: var(--color-mist); margin-left: var(--space-16); }
.footer-legal a:hover { color: var(--color-seafoam); }

/* Focus and Accessibility */
:focus-visible { outline: 3px solid var(--color-seafoam); outline-offset: 2px; }

/* Responsive */
@media (max-width: 768px) {
  .site-header { height: 56px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute;
    top: 56px;
    left: 0;
    width: 100%;
    background: var(--color-porcelain);
    flex-direction: column;
    padding: var(--space-24);
    box-shadow: var(--shadow-soft);
    display: none;
    z-index: 100;
  }
  .main-nav.is-active { display: flex; }
  .nav-links { flex-direction: column; width: 100%; gap: var(--space-16); }
  .nav-links a { display: block; padding: var(--space-8) 0; border-bottom: 1px solid var(--color-mist); }
  
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  section { padding: var(--space-40) 0; }
  .section-hero { padding: var(--space-80) 0 var(--space-40); }
  
  .cookie-actions { flex-direction: column; width: 100%; }
  .btn-cookie, .btn-cookie-primary { width: 100%; text-align: center; }
  
  .cookie-table, .cookie-table tbody, .cookie-table tr, .cookie-table td, .cookie-table th { display: block; width: 100%; }
  .cookie-table th { display: none; }
  .cookie-table tr { margin-bottom: var(--space-16); border: 1px solid var(--color-mist); }
  .cookie-table td { text-align: right; padding-left: 50%; position: relative; }
  .cookie-table td::before { content: attr(data-label); position: absolute; left: var(--space-12); width: 45%; padding-right: 10px; white-space: nowrap; font-weight: bold; text-align: left; }
}

@media (max-width: 400px) {
  h1 { font-size: 2rem; }
  .card-panel { padding: var(--space-16); }
}

@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; }
}