/*
Theme Name: Rocket Blog
Theme URI: https://rocketsolutions.net
Description: A clean, non-commercial informational blog theme for Rocket Solutions. Covers domains, DNS, servers, hosting, and web technology topics.
Version: 1.0.0
Author: Rocket Solutions
Author URI: https://rocketsolutions.net
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: rocket-blog
Tags: blog, education, one-column, custom-menu, featured-images, threaded-comments

This theme is licensed under the GPL.
*/

/* ===== CSS RESET & VARIABLES ===== */
:root {
  --clr-bg: #0f0f17;
  --clr-surface: #16161f;
  --clr-surface-2: #1e1e2e;
  --clr-border: rgba(255,255,255,0.06);
  --clr-text: #c9cdd8;
  --clr-heading: #f1f3f7;
  --clr-muted: #6b7280;
  --clr-accent: #6366f1;
  --clr-accent-2: #8b5cf6;
  --clr-cyan: #06b6d4;
  --clr-green: #10b981;
  --clr-orange: #f59e0b;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-head: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,.25);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.35);
  --transition: all .3s ease;
  --max-w: 1200px;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--clr-accent-2); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: var(--clr-heading);
  font-weight: 700;
  line-height: 1.25;
}
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,15,23,.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--clr-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.site-logo img { height: 36px; width: auto; }
.site-logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--clr-heading);
  letter-spacing: -0.02em;
}
.site-logo-text span { color: var(--clr-accent); }

/* Navigation */
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  color: var(--clr-text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: .92rem;
  transition: var(--transition);
}
.main-nav a:hover, .main-nav a.current {
  color: var(--clr-heading);
  background: var(--clr-surface);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--clr-heading);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* ===== HERO ===== */
.blog-hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.blog-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: .82rem;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge::before { content: '🚀'; }
.blog-hero h1 {
  margin-bottom: 20px;
  position: relative;
}
.blog-hero h1 span {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.blog-hero p {
  max-width: 600px;
  margin: 0 auto 32px;
  color: var(--clr-muted);
  font-size: 1.1rem;
}
.hero-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.hero-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-size: .88rem;
  font-weight: 500;
  transition: var(--transition);
}
.hero-cat:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

/* ===== POST GRID ===== */
.section { padding: 60px 0; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}
.section-header h2 { margin: 0; }
.section-header a {
  font-size: .92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.post-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99,102,241,.2);
}
.post-card-thumb {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.post-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.post-card:hover .post-card-thumb img { transform: scale(1.05); }
.post-card-thumb .post-cat-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--clr-accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.post-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.post-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
  font-size: .82rem;
  color: var(--clr-muted);
}
.post-card-meta span { display: flex; align-items: center; gap: 4px; }
.post-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.post-card h3 a { color: var(--clr-heading); }
.post-card h3 a:hover { color: var(--clr-accent); }
.post-card-excerpt {
  font-size: .92rem;
  color: var(--clr-muted);
  line-height: 1.6;
  flex: 1;
}
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: .88rem;
  color: var(--clr-accent);
}
.read-more:hover { gap: 10px; }

/* ===== FEATURED / INFO CARDS ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.info-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  text-align: center;
}
.info-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  box-shadow: 0 8px 30px rgba(99,102,241,.1);
}
.info-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
  background: rgba(99,102,241,.1);
}
.info-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.info-card p { font-size: .88rem; color: var(--clr-muted); margin: 0; }

/* ===== SINGLE POST ===== */
.single-post-header {
  padding: 60px 0 40px;
  text-align: center;
}
.single-post-header .post-cat-badge {
  display: inline-block;
  background: rgba(99,102,241,.15);
  color: var(--clr-accent);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.single-post-header h1 { margin-bottom: 16px; }
.single-post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  color: var(--clr-muted);
  font-size: .9rem;
}

.single-post-content {
  max-width: 780px;
  margin: 0 auto;
  padding-bottom: 60px;
}
.single-post-content h2 { margin: 40px 0 16px; }
.single-post-content h3 { margin: 32px 0 12px; }
.single-post-content p { margin-bottom: 20px; line-height: 1.8; }
.single-post-content ul, .single-post-content ol {
  margin: 0 0 20px 24px;
  line-height: 1.8;
}
.single-post-content li { margin-bottom: 8px; }
.single-post-content pre {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
  font-size: .88rem;
}
.single-post-content code {
  background: var(--clr-surface-2);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .88rem;
}
.single-post-content blockquote {
  border-left: 3px solid var(--clr-accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--clr-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}
.single-post-content img {
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

/* ===== SIDEBAR ===== */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.sidebar .widget {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar .widget-title {
  font-size: 1rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--clr-border);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  padding: 60px 0 30px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-about p { color: var(--clr-muted); font-size: .92rem; margin-top: 16px; line-height: 1.7; }
.footer-col h4 {
  color: var(--clr-heading);
  font-size: .95rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--clr-muted); font-size: .9rem; }
.footer-col a:hover { color: var(--clr-accent); }

.footer-bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p { color: var(--clr-muted); font-size: .85rem; margin: 0; }
.cc-license {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--clr-muted);
  font-size: .82rem;
}
.cc-license img { height: 20px; width: auto; display: inline; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .92rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(99,102,241,.3);
  color: #fff;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
}
.btn-outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.pagination a, .pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-weight: 600;
  transition: var(--transition);
}
.pagination a:hover { border-color: var(--clr-accent); color: var(--clr-accent); }
.pagination .current { background: var(--clr-accent); color: #fff; border-color: var(--clr-accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .blog-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .main-nav { 
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    flex-direction: column;
    padding: 16px;
  }
  .main-nav.active { display: flex; }
  .post-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .blog-hero { padding: 48px 0 36px; }
  .section { padding: 40px 0; }
  .header-inner { position: relative; }
}

/* ===== SPLIT HERO ===== */
.blog-hero-split {
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.blog-hero-split::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-split-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
.hero-split-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin-bottom: 20px;
  line-height: 1.15;
}
.hero-split-content h1 span {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--clr-muted);
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-categories-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text);
  font-size: .92rem;
  font-weight: 600;
  transition: var(--transition);
}
.hero-cat-btn:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.15);
}
.hero-split-image {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-illustration {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.4));
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

@media (max-width: 992px) {
  .hero-split-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 30px;
  }
  .hero-split-image {
    order: -1;
  }
  .hero-illustration {
    max-width: 70%;
  }
  .hero-categories-list {
    justify-content: center;
  }
}