/*
Theme Name: Ai Med House
Theme URI: #
Author: Antigravity AI
Description: A premium, responsive, and futuristic WordPress theme specifically designed for AI Healthcare blogs. Features a clinical yet high-tech aesthetic.
Version: 1.0.0
Text Domain: ai-med-house
*/

:root {
  /* Colors */
  --color-clinical-white: #ffffff;
  --color-light-gray: #f4f7f6;
  --color-slate: #8b99a6;
  --color-navy: #0a192f;
  --color-deep-blue: #112240;
  --color-cyan: #64ffda;
  --color-teal: #00b4d8;
  --color-accent: var(--color-cyan);
  --color-text-main: #2b303a;
  --color-text-muted: #6b7280;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  /* Layout */
  --container-width: 1200px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-light-gray);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-navy);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }

p { margin-bottom: var(--spacing-md); }

a {
  color: var(--color-teal);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.grid { display: grid; }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--color-teal);
  color: var(--color-clinical-white);
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn:hover {
  background-color: transparent;
  border-color: var(--color-teal);
  color: var(--color-teal);
  box-shadow: 0 4px 14px rgba(0, 180, 216, 0.2);
}

/* Header UI */
.site-header {
  background-color: var(--color-navy);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-branding a {
  color: var(--color-clinical-white);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.site-branding a span {
  color: var(--color-cyan);
}

.main-navigation ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
}

.main-navigation a {
  color: var(--color-slate);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-navigation a:hover {
  color: var(--color-cyan);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-deep-blue) 0%, var(--color-navy) 100%);
  color: var(--color-clinical-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  color: var(--color-clinical-white);
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(100, 255, 218, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

/* Post Listings */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.post-card {
  background-color: var(--color-clinical-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border-bottom: 3px solid transparent;
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  border-bottom-color: var(--color-cyan);
}

.post-thumbnail img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.post-content {
  padding: var(--spacing-lg);
}

.post-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  display: flex;
  gap: 1rem;
}

.post-title h2 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.post-title a {
  color: var(--color-navy);
}

.post-title a:hover {
  color: var(--color-teal);
}

.post-excerpt {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

/* Pagination */
.pagination {
    margin-top: var(--spacing-xl);
    text-align: center;
}
.nav-links {
    display: inline-flex;
    gap: 0.5rem;
}
.page-numbers {
    padding: 0.5rem 1rem;
    background-color: var(--color-clinical-white);
    color: var(--color-navy);
    border-radius: 4px;
    font-weight: 500;
}
.page-numbers.current {
    background-color: var(--color-teal);
    color: var(--color-clinical-white);
}

/* Footer UI */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-slate);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  text-align: center;
  margin-top: auto;
}

.site-footer p {
  font-size: 0.9rem;
}