/*
Theme Name: MLM Papers
Theme URI: https://mlmpapers.com
Author: MLM Papers
Author URI: https://mlmpapers.com
Description: A clean, minimal, AI/ML-centric theme for Machine Learning Manuscripts. Features light/dark mode, smooth animations, and a modern editorial aesthetic.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: mlmpapers
Tags: one-column, two-columns, custom-colors, custom-menu, featured-images, sticky-post, blog
*/

/* =====================================================
   CSS CUSTOM PROPERTIES
   ===================================================== */
:root {
  /* Light mode palette */
  --bg-primary:    #f8f7f4;
  --bg-secondary:  #ffffff;
  --bg-card:       #ffffff;
  --bg-subtle:     #f0ede8;
  --text-primary:  #0f0e0c;
  --text-secondary:#4a4845;
  --text-muted:    #9a9690;
  --accent:        #1a6b4a;
  --accent-light:  #e8f5f0;
  --accent-hover:  #145c3d;
  --border:        #e8e4de;
  --border-strong: #ccc7be;
  --tag-bg:        #f0ede8;
  --tag-text:      #4a4845;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:     0 12px 40px rgba(0,0,0,0.10);
  --code-bg:       #f4f2ee;
  --code-text:     #1a6b4a;

  /* Typography */
  --font-display: 'DM Serif Display', 'Georgia', serif;
  --font-body:    'DM Sans', 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;

  /* Sizes */
  --max-width: 1140px;
  --content-width: 720px;
  --header-height: 64px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

[data-theme="dark"] {
  --bg-primary:    #0c0b09;
  --bg-secondary:  #141310;
  --bg-card:       #1a1916;
  --bg-subtle:     #201e1b;
  --text-primary:  #f0ede8;
  --text-secondary:#b8b4ae;
  --text-muted:    #6a6660;
  --accent:        #3ddc97;
  --accent-light:  #0d2a1e;
  --accent-hover:  #5ae6a8;
  --border:        #2a2825;
  --border-strong: #3a3835;
  --tag-bg:        #201e1b;
  --tag-text:      #b8b4ae;
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:     0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:     0 12px 40px rgba(0,0,0,0.5);
  --code-bg:       #1a2820;
  --code-text:     #3ddc97;
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

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

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* =====================================================
   GOOGLE FONTS FALLBACK IMPORT
   ===================================================== */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&family=JetBrains+Mono:wght@400;500&display=swap');

/* =====================================================
   LAYOUT UTILITIES
   ===================================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* =====================================================
   NOISE TEXTURE OVERLAY
   ===================================================== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.4;
}

/* =====================================================
   SITE HEADER
   ===================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background-color: color-mix(in srgb, var(--bg-primary) 92%, transparent);
}

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

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.logo-mark {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), background-color var(--transition-slow);
}

.logo-mark:hover { transform: rotate(-5deg) scale(1.05); }

.logo-mark svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: #fff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: color var(--transition-slow);
}

.logo-tagline {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 500;
  transition: color var(--transition-slow);
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text-primary);
  background-color: var(--bg-subtle);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Theme Toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

[data-theme="light"] .icon-sun  { transform: translateY(0);    opacity: 1; }
[data-theme="light"] .icon-moon { transform: translateY(20px);  opacity: 0; }
[data-theme="dark"]  .icon-sun  { transform: translateY(-20px); opacity: 0; }
[data-theme="dark"]  .icon-moon { transform: translateY(0);     opacity: 1; }

/* Search Toggle */
.search-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.search-toggle:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.search-toggle svg {
  width: 15px;
  height: 15px;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: all var(--transition-base);
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background-color: var(--text-secondary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* =====================================================
   SEARCH OVERLAY
   ===================================================== */
.search-overlay {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--bg-primary) 96%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.search-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.search-box {
  width: 100%;
  max-width: 600px;
  padding: 0 var(--space-xl);
  transform: translateY(-20px);
  transition: transform var(--transition-base);
}

.search-overlay.active .search-box {
  transform: translateY(0);
}

.search-box input {
  width: 100%;
  font-family: var(--font-display);
  font-size: 2rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-strong);
  color: var(--text-primary);
  padding: var(--space-sm) 0;
  outline: none;
  transition: border-color var(--transition-base);
}

.search-box input:focus { border-color: var(--accent); }
.search-box input::placeholder { color: var(--text-muted); }

.search-hint {
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.search-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  transition: color var(--transition-fast);
}
.search-close:hover { color: var(--text-primary); }

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero-section {
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  top: 0; right: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at top right, var(--accent-light) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.6;
  transition: background var(--transition-slow);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fade-up 0.6s 0.2s ease forwards;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  max-width: 700px;
  opacity: 0;
  animation: fade-up 0.7s 0.35s ease forwards;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  margin-top: var(--space-lg);
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
  font-weight: 300;
  opacity: 0;
  animation: fade-up 0.7s 0.5s ease forwards;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  opacity: 0;
  animation: fade-up 0.7s 0.65s ease forwards;
}

/* Stats strip */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fade-up 0.7s 0.8s ease forwards;
}

.stat-item {}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-strong);
}

.btn-outline:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* =====================================================
   SECTION HEADERS
   ===================================================== */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  gap: var(--space-md);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: -0.025em;
}

.section-link {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.section-link:hover { color: var(--accent); }

.section-link svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.section-link:hover svg { transform: translateX(3px); }

/* =====================================================
   FEATURED POST (LARGE CARD)
   ===================================================== */
.featured-section {
  padding: var(--space-2xl) 0;
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-slow), background-color var(--transition-slow);
}

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

.featured-card:hover .featured-card-image img {
  transform: scale(1.04);
}

.featured-card-image {
  overflow: hidden;
  min-height: 400px;
  background: var(--bg-subtle);
  position: relative;
}

.featured-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.featured-card-image .placeholder-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-subtle) 0%, var(--accent-light) 100%);
}

.placeholder-svg {
  width: 80px;
  height: 80px;
  color: var(--accent);
  opacity: 0.4;
}

.featured-card-body {
  padding: var(--space-2xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.featured-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.featured-label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.featured-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  transition: color var(--transition-slow);
}

.featured-card-title a {
  color: inherit;
  text-decoration: none;
}

.featured-card-title a:hover { color: var(--accent); }

.featured-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: var(--space-xl);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.post-author {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.post-author-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-light);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--accent);
  overflow: hidden;
  flex-shrink: 0;
}

.post-author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-date, .post-read-time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border-strong);
  display: inline-block;
}

/* =====================================================
   POST GRID
   ===================================================== */
.posts-section {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

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

/* Post Card */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-slow), background-color var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.post-card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-subtle);
  position: relative;
}

.post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .post-card-image img { transform: scale(1.06); }

.post-card-image .placeholder-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-subtle) 0%, var(--accent-light) 100%);
}

.post-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

.tag.tag-accent {
  background: var(--accent-light);
  color: var(--accent);
}

.post-card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: var(--space-sm);
  flex: 1;
}

.post-card-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.post-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-md);
  font-weight: 300;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-footer {
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition-slow);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  transition: gap var(--transition-fast);
}

.read-more:hover { gap: 8px; }

.read-more svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* =====================================================
   TOPIC PILLS / CATEGORY FILTER
   ===================================================== */
.topics-section {
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--border);
}

.topics-scroll {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scrollbar-width: none;
}
.topics-scroll::-webkit-scrollbar { display: none; }

.topic-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.topic-pill:hover,
.topic-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.topic-pill .pill-count {
  font-size: 0.68rem;
  opacity: 0.7;
  background: rgba(255,255,255,0.2);
  padding: 1px 5px;
  border-radius: var(--radius-full);
}

/* =====================================================
   NEWSLETTER SECTION
   ===================================================== */
.newsletter-section {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border);
}

.newsletter-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.newsletter-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-light) 0%, transparent 65%);
  pointer-events: none;
}

.newsletter-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.newsletter-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-md);
}

.newsletter-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 300;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: flex;
  gap: var(--space-sm);
}

.newsletter-input {
  flex: 1;
  padding: 0.65rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-slow);
}

.newsletter-input:focus { border-color: var(--accent); }
.newsletter-input::placeholder { color: var(--text-muted); }

.newsletter-privacy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* =====================================================
   ABOUT / MISSION SECTION
   ===================================================== */
.mission-section {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border);
}

.mission-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.mission-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
}

.mission-headline em { font-style: italic; color: var(--accent); }

.mission-body {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-weight: 300;
  margin-bottom: var(--space-xl);
}

.mission-sidebar {}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.sidebar-card-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.sidebar-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition-fast), border-color var(--transition-slow);
}

.sidebar-list-item:last-child { border-bottom: none; }

.sidebar-list-item a {
  color: inherit;
  transition: color var(--transition-fast);
}
.sidebar-list-item a:hover { color: var(--accent); }

.sidebar-count {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-subtle);
  padding: 1px 7px;
  border-radius: var(--radius-full);
}

/* =====================================================
   FOOTER
   ===================================================== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) 0 var(--space-xl);
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand .logo-text { margin-top: var(--space-md); }

.footer-brand-desc {
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.social-link {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.social-link svg { width: 14px; height: 14px; }

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  gap: var(--space-lg);
}

.footer-legal a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--text-secondary); }

/* =====================================================
   SINGLE POST
   ===================================================== */
.post-header {
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-bottom: 1px solid var(--border);
}

.post-header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.post-header .post-tags { margin-bottom: var(--space-md); }

.post-header-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.post-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.post-featured-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-xl);
  max-height: 480px;
}

.post-featured-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Post Content */
.post-content {
  padding: var(--space-3xl) 0;
}

.entry-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  font-weight: 300;
}

.entry-content h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.entry-content h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--text-primary);
}

.entry-content p {
  margin-bottom: var(--space-lg);
}

.entry-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition-fast);
}

.entry-content a:hover {
  text-decoration-color: var(--accent);
}

.entry-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.entry-content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.entry-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.entry-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: var(--space-lg);
  margin: var(--space-xl) 0;
  font-style: italic;
  color: var(--text-primary);
  font-size: 1.1rem;
}

.entry-content ul, .entry-content ol {
  list-style: revert;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.entry-content li { margin-bottom: var(--space-xs); }

.entry-content img {
  border-radius: var(--radius-md);
  margin: var(--space-xl) 0;
}

/* =====================================================
   PAGINATION
   ===================================================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-2xl) 0;
}

.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.page-numbers:hover,
.page-numbers.current {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.page-numbers.prev,
.page-numbers.next {
  width: auto;
  padding: 0 var(--space-md);
  gap: var(--space-xs);
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1;   transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Live badge */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #e53e3e;
}

.live-dot {
  width: 6px;
  height: 6px;
  background: #e53e3e;
  border-radius: 50%;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

/* =====================================================
   MOBILE NAVIGATION DRAWER
   ===================================================== */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: var(--space-lg) var(--space-xl);
  z-index: 99;
  transform: translateY(-100%);
  transition: transform var(--transition-base), background-color var(--transition-slow);
  box-shadow: var(--shadow-lg);
}

.mobile-nav.open {
  transform: translateY(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-links a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-nav-links a:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

/* =====================================================
   SCROLLBAR
   ===================================================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* =====================================================
   SELECTION
   ===================================================== */
::selection {
  background: var(--accent);
  color: #fff;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
  .mission-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
}

@media (max-width: 768px) {
  :root { --header-height: 56px; }

  .container, .container--narrow { padding: 0 var(--space-lg); }

  .site-nav { display: none; }
  .menu-toggle { display: flex; }

  .mobile-nav { display: block; }

  .featured-card { grid-template-columns: 1fr; }
  .featured-card-image { min-height: 220px; }
  .featured-card-body { padding: var(--space-lg); }

  .posts-grid { grid-template-columns: 1fr; }

  .newsletter-card {
    grid-template-columns: 1fr;
    padding: var(--space-xl);
  }

  .footer-grid { grid-template-columns: 1fr; }

  .hero-stats { gap: var(--space-xl); flex-wrap: wrap; }

  .hero-actions { flex-direction: column; align-items: flex-start; }

  .section-header { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
}

@media (max-width: 480px) {
  .hero-section { padding: var(--space-2xl) 0 var(--space-xl); }
  .form-row { flex-direction: column; }
}

/* =====================================================
   WP ADMIN BAR
   ===================================================== */
.admin-bar .site-header { top: 32px; }
@media (max-width: 782px) { .admin-bar .site-header { top: 46px; } }

/* =====================================================
   WP CORE CLASSES
   ===================================================== */
.wp-block-image { margin: var(--space-xl) 0; }
.wp-caption { text-align: center; }
.wp-caption-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
  font-style: italic;
}
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.alignleft  { float: left; margin-right: var(--space-md); margin-bottom: var(--space-sm); }
.alignright { float: right; margin-left: var(--space-md); margin-bottom: var(--space-sm); }
.sticky { position: relative; }
.bypostauthor {}
.screen-reader-text {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}