/* ============================================================
   TermuxLab — Style Sheet
   Editorial dark theme: terminal meets magazine
   ============================================================ */

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

:root {
  --bg: #0d0f0e;
  --surface: #131614;
  --surface2: #1a1d1b;
  --border: #222622;
  --accent: #00e07a;
  --accent2: #00b85c;
  --text: #e8ece9;
  --muted: #7a8a7d;
  --tag-bg: #0d2318;
  --tag-text: #00e07a;
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-content: 1120px;
  --max-article: 680px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* Noise texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navbar --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 14, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.logo .cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.btn-subscribe {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 20px;
  border: 1.5px solid var(--accent);
  border-radius: 100px;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-subscribe:hover {
  background: var(--accent);
  color: var(--bg);
}

/* --- Hero / Featured Article --- */
.hero {
  padding: 48px 0 56px;
}

.hero-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
}

.hero-card:hover {
  border-color: var(--accent2);
  transform: translateY(-2px);
}

.hero-cover {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 40px;
  gap: 16px;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 4px 12px;
  border-radius: 4px;
  width: fit-content;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.2;
  color: var(--text);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.5;
}

.hero-meta {
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.hero-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
}

/* --- Section Heading --- */
.section-heading {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-bottom: 32px;
  color: var(--text);
}

/* --- Article Grid --- */
.latest {
  padding: 0 0 64px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition);
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent2);
}

.card-cover {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 3px 10px;
  border-radius: 4px;
  width: fit-content;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
}

.card-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
}

/* --- Article Page --- */
.article-header {
  padding: 48px 0 0;
  text-align: center;
}

.article-header .hero-tag {
  margin: 0 auto 16px;
  display: inline-flex;
}

.article-header .readtime-inline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.article-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.15;
  max-width: var(--max-article);
  margin: 0 auto 16px;
  color: var(--text);
}

.article-subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: var(--max-article);
  margin: 0 auto 24px;
  line-height: 1.5;
}

.author-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface2);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}

.author-info {
  text-align: left;
}

.author-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.author-date {
  font-size: 0.8rem;
  color: var(--muted);
}

.article-cover-wrap {
  margin: 32px auto 0;
  max-width: var(--max-content);
  padding: 0 24px;
}

.article-cover {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius);
}

/* Article body */
.article-body {
  max-width: var(--max-article);
  margin: 48px auto 0;
  padding: 0 24px;
  line-height: 1.8;
}

.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  line-height: 1.3;
  color: var(--text);
  margin: 48px 0 16px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p {
  margin-bottom: 20px;
  color: var(--text);
  font-size: 1.05rem;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 24px;
  color: var(--text);
  font-size: 1.05rem;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.article-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin: 24px 0;
  overflow-x: auto;
}

.article-body pre code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text);
}

.article-body code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 2px 7px;
  border-radius: 4px;
}

/* Bottom nav */
.article-bottom {
  max-width: var(--max-content);
  margin: 64px auto 0;
  padding: 0 24px 64px;
}

.back-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  transition: opacity var(--transition);
}

.back-link:hover {
  opacity: 0.7;
}

.more-heading {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--text);
}

.more-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.more-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition);
  display: flex;
  gap: 0;
}

.more-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent2);
}

.more-card-cover {
  width: 140px;
  min-height: 120px;
  object-fit: cover;
  flex-shrink: 0;
}

.more-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  justify-content: center;
}

.more-card-body .card-title {
  font-size: 1.05rem;
}

/* 404 */
.not-found {
  text-align: center;
  padding: 120px 24px;
}

.not-found h1 {
  font-family: var(--font-heading);
  font-size: 4rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.not-found p {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 32px;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
  margin-top: 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.footer-brand .logo {
  margin-bottom: 8px;
  display: inline-block;
}

.footer-brand .tagline {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 20px 24px;
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Reading Progress Bar --- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent);
  z-index: 101;
  transition: width 0.1s linear;
}

/* --- Page Header (guides, tools, about) --- */
.page-header {
  padding: 48px 0 32px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 12px;
}

.page-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.5;
}

/* --- Filter Bar (guides) --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.filter-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-pill:hover {
  border-color: var(--accent2);
  color: var(--text);
}

.filter-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* --- Guides Count --- */
.guides-count {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 20px;
}

/* --- Tools Page --- */
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), border-color var(--transition);
}

.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent2);
}

.tool-name {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
}

.tool-desc {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.45;
  margin-bottom: 4px;
}

.tool-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color var(--transition);
  position: relative;
  user-select: none;
}

.tool-code:hover {
  border-color: var(--accent);
}

.tool-code code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  margin-right: 12px;
}

.tool-code .copy-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  transition: color var(--transition);
  white-space: nowrap;
}

.tool-code.copied {
  border-color: var(--accent);
}

.tool-code.copied .copy-label {
  color: var(--accent);
}

/* --- About Page --- */
.about-content {
  max-width: var(--max-article);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.about-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 24px;
}

.about-content p:last-child {
  margin-bottom: 0;
}

.contribute-box {
  margin-top: 48px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.contribute-box p {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 20px;
}

.btn-contribute {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 100px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-contribute:hover {
  background: var(--accent2);
  transform: translateY(-1px);
}

/* --- Hamburger Button --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 102;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all var(--transition);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
  padding: 4px 0;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--text);
}

.mobile-subscribe {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent) !important;
  font-weight: 600;
}

/* --- Social Pills (about page) --- */
.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: all var(--transition);
}

.social-pill:hover {
  border-color: var(--accent);
  background: var(--tag-bg);
  color: var(--accent);
  transform: translateY(-1px);
}

/* --- Responsive additions --- */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-bar {
    gap: 8px;
  }

  .filter-pill {
    font-size: 0.72rem;
    padding: 6px 14px;
  }

  .hero-card {
    grid-template-columns: 1fr;
  }

  .hero-cover {
    min-height: 220px;
  }

  .hero-content {
    padding: 28px 24px;
  }
}

@media (max-width: 768px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .more-card-cover {
    width: 110px;
  }

  .tool-card {
    padding: 20px;
  }

  .contribute-box {
    padding: 24px;
  }
}

/* Search Input — guides.html */
.search-input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.92rem;
  padding: 12px 16px;
  border-radius: 8px;
  outline: none;
  margin-bottom: 16px;
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input::placeholder {
  color: var(--muted);
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 224, 122, 0.15);
}

.search-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.95rem;
}