:root {
  --font-base: 'Inter', system-ui, -apple-system, sans-serif;
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text-main: #2c3e50;
  --color-text-muted: #596a7b;
  --color-primary: #4a6c6f;
  --color-primary-hover: #385356;
  --color-accent-pastel: #e3ebe9;
  --color-border: #e9ecef;
  --color-error: #c92a2a;
  --color-success: #2b8a3e;
  
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  
  --shadow-micro: 0 4px 16px rgba(44, 62, 80, 0.04);
  --shadow-hover: 0 12px 32px rgba(44, 62, 80, 0.08);
}

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

body {
  margin: 0;
  font-family: var(--font-base);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  font-size: 16px;
}

h1, h2, h3, h4, .brand-name, a {
  overflow-wrap: anywhere;
}

h1, h2, h3 {
  line-height: 1.2;
  margin-top: 0;
  color: var(--color-text-main);
  font-weight: 600;
}

h1 { font-size: 2.5rem; margin-bottom: var(--space-4); }
h2 { font-size: 2rem; margin-bottom: var(--space-4); }
h3 { font-size: 1.5rem; margin-bottom: var(--space-3); }

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  min-width: 0;
}

.section {
  padding: var(--space-6) 0;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: 12px var(--space-4);
  border-radius: var(--radius-sm);
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  font-size: 1rem;
}

.btn:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-surface);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

/* Header */
.site-header {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-main);
  text-decoration: none;
  min-width: 0;
}

.brand-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.brand-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-desktop {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 500;
}

.nav-link:hover {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  color: var(--color-text-main);
}

/* Mobile Nav Overlay */
.nav-mobile-overlay {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

.nav-mobile-overlay.is-visible {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Hero Section */
.hero {
  padding: calc(var(--space-6) * 1.5) 0 var(--space-6);
  background: linear-gradient(135deg, #eef2f3 0%, #f7f9fa 100%);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  margin-bottom: var(--space-6);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-4);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--space-5);
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.grid-item {
  min-width: 0;
}

/* Card Style: Framed Canvas */
.card-wrapper {
  position: relative;
  z-index: 1;
  padding: var(--space-3);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-frame {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  right: calc(var(--space-3) * -1);
  bottom: calc(var(--space-3) * -1);
  background: var(--color-accent-pastel);
  border-radius: var(--radius-md);
  z-index: -1;
  transition: transform 0.3s ease;
}

.card-content {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-micro);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-wrapper:hover .card-content {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-hover);
}

.card-img-wrap {
  margin: calc(var(--space-4) * -1) calc(var(--space-4) * -1) var(--space-4) calc(var(--space-4) * -1);
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-img-wrap img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 0;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.card-title a {
  color: var(--color-text-main);
}

.card-title a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.card-excerpt {
  flex-grow: 1;
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
}

.card-meta {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  margin-top: auto;
}

.tag {
  background: var(--color-bg);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* Article Styling */
.article-header {
  margin-bottom: var(--space-6);
}

.article-hero-img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
}

.content-body {
  max-width: 800px;
  margin: 0 auto;
}

.content-body h2 {
  margin-top: var(--space-5);
}

.content-body ul, .content-body ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-4);
  color: var(--color-text-muted);
}

.content-body li {
  margin-bottom: var(--space-2);
}

.pros-cons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.pros-box, .cons-box {
  background: var(--color-surface);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.pros-box h3 { color: var(--color-success); font-size: 1.1rem; }
.cons-box h3 { color: var(--color-error); font-size: 1.1rem; }

/* Contact Form */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text-main);
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background: var(--color-surface);
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 108, 111, 0.1);
}

.form-control.is-invalid {
  border-color: var(--color-error);
}

.error-message {
  display: none;
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: var(--space-1);
}

.form-control.is-invalid + .error-message {
  display: block;
}

.success-message {
  display: none;
  background: #d3f9d8;
  color: #2b8a3e;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.success-message.is-visible {
  display: block;
}

.contact-info {
  background: var(--color-surface);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-micro);
}

.map-block {
  width: 100%;
  height: 250px;
  background-color: var(--color-accent-pastel);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 600;
  background-image: radial-gradient(var(--color-primary) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0 var(--space-4);
  margin-top: var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.05);
  z-index: 1000;
  display: none;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.is-visible {
  display: block;
  transform: translateY(0);
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.cookie-text {
  flex: 1 1 300px;
  margin: 0;
  font-size: 0.95rem;
}

.cookie-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.cookie-actions button {
  font-size: 0.9rem;
  padding: 8px 16px;
}

/* Tables */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-text-main);
}

/* Responsive */
@media (max-width: 991px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .header-inner { height: 48px; }
  .nav-desktop { display: none; }
  .menu-toggle { display: block; }
  
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .pros-cons-grid { grid-template-columns: 1fr; }

  /* Offset frames constraint on mobile */
  .card-frame {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
}

@media (max-width: 399px) {
  .hero h1 { font-size: 1.75rem; }
  .card-wrapper { padding: var(--space-2); }
}

@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;
  }
}