:root {
  --primary: #155e75; /* Deep Petrol / Cyan-Slate */
  --primary-hover: #0e7490;
  --primary-light: #ecfeff;
  --primary-dark: #164e63;
  --secondary: #d97706; /* Warm Amber */
  --accent: #0f766e; /* Deep Pine */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --border-color: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  font-size: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navigation */
.header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 74px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-dark);
}

.logo-badge {
  background: var(--primary);
  color: white;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  align-items: center;
}

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

.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
}

.btn {
  display: inline-block;
  background-color: var(--primary);
  color: #ffffff !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--primary) !important;
  border: 1px solid var(--primary);
}

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

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #ecfeff 0%, #f0fdfa 100%);
  border-bottom: 1px solid #cffafe;
  padding: 56px 0;
}

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

.badge {
  display: inline-block;
  background-color: #e0f2fe;
  color: #0369a1;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 2.4rem;
  line-height: 1.25;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Content Layout */
.main-wrapper {
  padding: 48px 0;
  flex: 1;
}

.grid-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 36px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}

.card-title {
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.meta-info {
  display: flex;
  gap: 16px;
  color: var(--text-light);
  font-size: 0.88rem;
  margin-bottom: 16px;
}

/* Post Cards */
.post-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-bottom: 24px;
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.post-card-body {
  padding: 24px;
}

.post-card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--secondary);
  margin-bottom: 8px;
  display: inline-block;
}

.post-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--primary-dark);
}

.post-card p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 0.98rem;
}

/* Sidebar */
.sidebar-widget {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.sidebar-widget h4 {
  font-size: 1.15rem;
  color: var(--primary-dark);
  margin-bottom: 16px;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 8px;
}

.habits-list {
  list-style: none;
}

.habits-list li {
  padding: 10px 0;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.disclaimer-box {
  background-color: #fffbeb;
  border-left: 4px solid var(--secondary);
  padding: 16px;
  font-size: 0.9rem;
  color: #92400e;
  border-radius: 4px;
  margin-bottom: 24px;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(21, 94, 117, 0.15);
}

/* Footer */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 48px 0 24px 0;
  margin-top: auto;
  border-top: 1px solid #1e293b;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}

.footer h5 {
  color: #f8fafc;
  font-size: 1.05rem;
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #cbd5e1;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* Banner / Cookie */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 560px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  padding: 20px;
  z-index: 1000;
  display: none;
}

.cookie-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

/* Responsive */
@media (max-width: 860px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}