/*
Theme Name: AI News
Theme URI: https://uiowaacrc.org
Description: قالب أخبار الذكاء الاصطناعي — تصميم عصري داكن
Version: 1.1
Author: UIOWA ACRC
Text Domain: ainews
Requires at least: 6.0
Requires PHP: 8.0
*/

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Arabic:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Light palette */
  --ai-bg: #f8f9fc;
  --ai-surface: #ffffff;
  --ai-surface-2: #f1f3f8;
  --ai-surface-3: #e8ebf2;
  --ai-text: #111827;
  --ai-text-2: #6b7280;
  --ai-text-3: #9ca3af;
  --ai-accent: #4f46e5;
  --ai-accent-2: #6366f1;
  --ai-accent-glow: rgba(79,70,229,0.08);
  --ai-green: #059669;
  --ai-orange: #ea580c;
  --ai-red: #dc2626;
  --ai-cyan: #0891b2;
  --ai-border: #e5e7eb;
  --ai-border-2: #d1d5db;
  --ai-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --ai-shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
  --ai-glow: 0 0 0 3px rgba(79,70,229,0.12);
  --ai-radius: 16px;
  --ai-radius-sm: 10px;
  --ai-font: 'IBM Plex Sans Arabic', -apple-system, sans-serif;
  --ai-mono: 'JetBrains Mono', monospace;
  --ai-max-w: 1200px;
  --ai-content-w: 720px;
  --ai-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--ai-font);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ai-text);
  background: var(--ai-bg);
  direction: rtl;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ai-accent-2); text-decoration: none; transition: color var(--ai-transition); }
a:hover { color: var(--ai-cyan); }

img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--ai-accent); color: #fff; }

/* ===== Header ===== */
.ai-header {
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--ai-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.ai-header-inner {
  max-width: var(--ai-max-w);
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--ai-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.ai-logo img {
  height: 28px;
  width: auto;
}

.ai-logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ai-text);
  letter-spacing: -0.5px;
}

.ai-logo-text span {
  color: var(--ai-accent);
  font-weight: 800;
}

.ai-header-nav {
  display: flex;
  gap: 2px;
}

.ai-nav-link {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ai-text-2);
  border-radius: 8px;
  transition: all var(--ai-transition);
}

.ai-nav-link:hover {
  color: var(--ai-text);
  background: var(--ai-surface-2);
}

.ai-nav-link.active {
  color: var(--ai-accent-2);
  background: var(--ai-accent-glow);
}

.ai-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--ai-border-2);
  border-radius: 8px;
  color: var(--ai-text-2);
  padding: 6px 8px;
  cursor: pointer;
}

/* ===== Hero ===== */
.ai-hero {
  max-width: var(--ai-max-w);
  margin: 28px auto 0;
  padding: 0 20px;
}

.ai-hero-card {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  background: var(--ai-surface);
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  overflow: hidden;
  transition: all var(--ai-transition);
  position: relative;
}

.ai-hero-card:hover { box-shadow: var(--ai-shadow-lg); }

.ai-hero-img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.ai-hero-body {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  position: relative;
  z-index: 2;
}

.ai-hero-title {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.3px;
}

.ai-hero-title a { color: var(--ai-text); }
.ai-hero-title a:hover { color: var(--ai-accent-2); }

.ai-hero-excerpt {
  color: var(--ai-text-2);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Badges ===== */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ai-accent-2);
  background: var(--ai-accent-glow);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 99px;
  letter-spacing: 0.3px;
}

.ai-badge::before {
  content: '●';
  font-size: 6px;
}

/* ===== Section ===== */
.ai-section-title {
  max-width: var(--ai-max-w);
  margin: 36px auto 18px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ai-text-2);
  display: flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ai-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to left, transparent, var(--ai-border-2));
}

/* ===== Grid ===== */
.ai-grid {
  max-width: var(--ai-max-w);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ===== Card ===== */
.ai-card {
  background: var(--ai-surface);
  border: 1px solid var(--ai-border);
  border-radius: var(--ai-radius);
  overflow: hidden;
  transition: all var(--ai-transition);
  position: relative;
}

.ai-card:hover {
  border-color: var(--ai-border-2);
  transform: translateY(-3px);
  box-shadow: var(--ai-shadow-lg);
}

.ai-card-img-wrap {
  position: relative;
  overflow: hidden;
}

.ai-card-img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.ai-card-body { padding: 18px; }

.ai-card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  margin: 8px 0;
}

.ai-card-title a { color: var(--ai-text); }
.ai-card-title a:hover { color: var(--ai-accent-2); }

.ai-card-excerpt {
  color: var(--ai-text-2);
  font-size: 13px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.ai-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ai-text-3);
}

.ai-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--ai-border-2);
}

.ai-card-meta a { color: var(--ai-text-2); font-weight: 500; }
.ai-dot { margin: 0 2px; }

/* ===== Single ===== */
.ai-article {
  max-width: var(--ai-content-w);
  margin: 36px auto;
  padding: 0 20px;
}

.ai-article-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin: 14px 0;
}

.ai-article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ai-text-2);
  font-size: 14px;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--ai-border);
}

.ai-article-meta .ai-avatar { width: 36px; height: 36px; }

.ai-article-thumb {
  width: 100%;
  border-radius: var(--ai-radius);
  margin-bottom: 28px;
  border: 1px solid var(--ai-border);
}

/* ===== Entry Content ===== */
.entry-content {
  font-size: 17px;
  line-height: 1.9;
  color: var(--ai-text);
}

.entry-content p { margin-bottom: 1.5em; }

.entry-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.2em 0 0.7em;
  color: var(--ai-text);
}

.entry-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.8em 0 0.6em;
}

.entry-content a {
  color: var(--ai-accent-2);
  text-decoration: underline;
  text-decoration-color: rgba(129,140,248,0.3);
  text-underline-offset: 3px;
}

.entry-content a:hover {
  text-decoration-color: var(--ai-accent-2);
}

.entry-content img {
  border-radius: var(--ai-radius-sm);
  margin: 1.5em 0;
  border: 1px solid var(--ai-border);
}

.entry-content ul, .entry-content ol {
  margin-bottom: 1.5em;
  padding-right: 1.5em;
}

.entry-content li { margin-bottom: 0.5em; }

.entry-content blockquote {
  border-right: 3px solid var(--ai-accent);
  border-left: none;
  padding: 16px 20px;
  margin: 1.5em 0;
  background: var(--ai-surface-2);
  border-radius: 0 var(--ai-radius-sm) var(--ai-radius-sm) 0;
  color: var(--ai-text-2);
}

.entry-content pre, .entry-content code {
  font-family: var(--ai-mono);
}

.entry-content pre {
  background: #1e293b;
  color: #e2e8f0;
  border: none;
  padding: 18px;
  border-radius: var(--ai-radius-sm);
  overflow-x: auto;
  font-size: 14px;
  margin: 1.5em 0;
  direction: ltr;
  text-align: left;
}

.entry-content code {
  background: var(--ai-surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--ai-accent);
}

/* ===== Pagination ===== */
.ai-pagination {
  max-width: var(--ai-max-w);
  margin: 36px auto;
  padding: 0 20px;
  display: flex;
  justify-content: center;
  gap: 6px;
}

.ai-pagination a, .ai-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  border-radius: var(--ai-radius-sm);
  font-weight: 600;
  font-size: 14px;
  color: var(--ai-text-2);
  background: var(--ai-surface);
  border: 1px solid var(--ai-border);
  transition: all var(--ai-transition);
}

.ai-pagination a:hover {
  border-color: var(--ai-accent);
  color: var(--ai-accent-2);
  box-shadow: var(--ai-glow);
}

.ai-pagination .current {
  background: var(--ai-accent);
  color: #fff;
  border-color: var(--ai-accent);
}

/* ===== Footer ===== */
.ai-footer {
  border-top: 1px solid var(--ai-border);
  margin-top: 60px;
  padding: 28px 20px;
  text-align: center;
  color: var(--ai-text-3);
  font-size: 13px;
  background: var(--ai-surface);
}

/* ===== Scroll Top ===== */
#ai-top {
  width: 42px;
  height: 42px;
  border-radius: var(--ai-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: var(--ai-surface-2);
  border: 1px solid var(--ai-border-2);
  color: var(--ai-text-2);
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  transition: all var(--ai-transition);
}

#ai-top.show { opacity: 1; }
#ai-top:hover { background: var(--ai-accent); color: #fff; border-color: var(--ai-accent); box-shadow: var(--ai-glow); }
#ai-top svg { width: 18px; height: 18px; fill: currentColor; }

/* ===== Archive ===== */
.ai-archive-header {
  max-width: var(--ai-max-w);
  margin: 28px auto 18px;
  padding: 0 20px;
}

.ai-archive-title {
  font-size: 1.4rem;
  font-weight: 700;
}

/* ===== 404 ===== */
.ai-404 {
  text-align: center;
  padding: 100px 20px;
}

.ai-404 h1 {
  font-size: 7rem;
  font-weight: 900;
  color: var(--ai-border);
  line-height: 1;
}

.ai-404 p { color: var(--ai-text-2); margin-top: 12px; }

.ai-404 a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  padding: 12px 28px;
  background: var(--ai-accent);
  color: #fff;
  border-radius: 99px;
  font-weight: 600;
  font-size: 14px;
  transition: all var(--ai-transition);
}

.ai-404 a:hover { background: var(--ai-accent-2); color: #fff; box-shadow: var(--ai-glow); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .ai-hero-card { grid-template-columns: 1fr; }
  .ai-hero-img { min-height: 200px; }
  .ai-hero-body { padding: 20px; }
  .ai-hero-title { font-size: 1.2rem; }
  .ai-grid { grid-template-columns: 1fr; gap: 16px; }
  .ai-card-img { height: 200px; }
  .ai-header-nav { display: none; }
  .ai-menu-btn { display: block; }
  .ai-header-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--ai-surface);
    border-bottom: 1px solid var(--ai-border);
    padding: 8px 20px 16px;
    box-shadow: var(--ai-shadow);
    z-index: 99;
  }
  .ai-header-nav.open .ai-nav-link {
    padding: 12px 0;
    border-radius: 0;
    border-bottom: 1px solid var(--ai-border);
  }
  .ai-article-title { font-size: 1.6rem; }
  .entry-content { font-size: 16px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Lazy Load ===== */
img[loading="lazy"] { opacity: 0; transition: opacity 0.4s ease; }
img[loading="lazy"].loaded, img:not([loading="lazy"]) { opacity: 1; }
.ai-logo img, .ai-avatar { opacity: 1 !important; }