/* ==========================================================================
   GitFlow Helper - Modern Promotion & Documentation Theme
   ========================================================================== */

:root {
  --bg-primary: #0b0f17;
  --bg-secondary: #121824;
  --bg-card: rgba(22, 30, 46, 0.75);
  --bg-card-hover: rgba(30, 41, 62, 0.9);
  --bg-input: #1a2332;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(16, 185, 129, 0.35);
  --border-glow: rgba(16, 185, 129, 0.15);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-highlight: #38bdf8;

  --primary: #10b981;
  --primary-hover: #059669;
  --primary-light: rgba(16, 185, 129, 0.12);
  --primary-glow: rgba(16, 185, 129, 0.4);

  --accent-kofi: #ff5e5b;
  --accent-kofi-hover: #e04b48;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --accent-cyan: #06b6d4;
  --accent-rose: #f43f5e;

  /* GitFlow Branching Colors */
  --branch-main: #3b82f6;
  --branch-develop: #10b981;
  --branch-feature: #f59e0b;
  --branch-release: #06b6d4;
  --branch-hotfix: #ef4444;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 35px var(--border-glow);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(16, 185, 129, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
}

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

img, svg {
  vertical-align: middle;
}

code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  font-size: 0.88em;
  color: #38bdf8;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Ambient Floating Background Light */
.ambient-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 1200px;
  height: 500px;
  background: radial-gradient(ellipse at 50% -20%, rgba(16, 185, 129, 0.22), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 23, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(11, 15, 23, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-logo-wrap {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-brand:hover .brand-logo-wrap {
  transform: rotate(6deg) scale(1.08);
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.4);
}

.brand-logo {
  width: 22px;
  height: 22px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-badge {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-desktop-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-link {
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Hamburger Button */
.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  padding: 0;
  gap: 5px;
  transition: all var(--transition-fast);
  z-index: 120;
}

.hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.hamburger-btn .line {
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger-btn.active .line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active .line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active .line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile & Fullscreen Hamburger Drawer Menu */
.nav-drawer {
  position: fixed;
  top: 0;
  right: -380px;
  width: 360px;
  max-width: 85vw;
  height: 100vh;
  background: #111723;
  border-left: 1px solid var(--border-color);
  box-shadow: -15px 0 45px rgba(0, 0, 0, 0.7);
  z-index: 110;
  padding: 5.5rem 2rem 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

.nav-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 105;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.drawer-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.98rem;
  transition: all var(--transition-fast);
}

.drawer-link:hover, .drawer-link.active {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.25);
  color: var(--primary);
  transform: translateX(4px);
}

.drawer-link-tag {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--primary);
  font-weight: 600;
}

.drawer-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.94rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-kofi {
  background: linear-gradient(135deg, #ff5e5b 0%, #ff3b37 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(255, 94, 91, 0.35);
  font-weight: 600;
}

.btn-kofi:hover {
  background: linear-gradient(135deg, #ff4340 0%, #e02f2b 100%);
  box-shadow: 0 6px 22px rgba(255, 94, 91, 0.55);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.84rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.badge-primary {
  background: rgba(16, 185, 129, 0.12);
  color: var(--primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-glow {
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
}

/* ==========================================================================
   Hero Section with Motion
   ========================================================================== */
.hero {
  position: relative;
  padding: 5rem 0 4rem;
  text-align: center;
  overflow: hidden;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.8rem;
  backdrop-filter: blur(8px);
  animation: floatSubtle 4s ease-in-out infinite;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #10b981 50%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

/* Branch Preview Rail Animation */
.branch-flow-strip {
  margin-top: 3.5rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.branch-flow-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  animation: scanningLight 6s linear infinite;
}

.branch-strip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.branch-strip-nodes {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.5rem 0;
}

.branch-node {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  transition: transform var(--transition-fast);
}

.branch-node:hover {
  transform: translateY(-2px);
}

.branch-node.main { border-color: rgba(59, 130, 246, 0.4); color: #93c5fd; }
.branch-node.develop { border-color: rgba(16, 185, 129, 0.4); color: #6ee7b7; }
.branch-node.feature { border-color: rgba(245, 158, 11, 0.4); color: #fcd34d; }
.branch-node.release { border-color: rgba(6, 182, 212, 0.4); color: #67e8f9; }
.branch-node.hotfix { border-color: rgba(239, 68, 68, 0.4); color: #fca5a5; }

.branch-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.branch-dot.main { background: var(--branch-main); box-shadow: 0 0 8px var(--branch-main); }
.branch-dot.develop { background: var(--branch-develop); box-shadow: 0 0 8px var(--branch-develop); }
.branch-dot.feature { background: var(--branch-feature); box-shadow: 0 0 8px var(--branch-feature); }
.branch-dot.release { background: var(--branch-release); box-shadow: 0 0 8px var(--branch-release); }
.branch-dot.hotfix { background: var(--branch-hotfix); box-shadow: 0 0 8px var(--branch-hotfix); }

/* ==========================================================================
   Screenshot Frame & Placeholder Components (Requested by User)
   ========================================================================== */
.screenshot-frame {
  margin: 2.5rem 0;
  background: #111722;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), 0 0 1px rgba(255, 255, 255, 0.2);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.screenshot-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.65), 0 0 25px rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.3);
}

.screenshot-header {
  height: 42px;
  background: #161f2e;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
}

.window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dot.close { background: #ff5f56; }
.window-dot.minimize { background: #ffbd2e; }
.window-dot.maximize { background: #27c93f; }

.screenshot-title {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.screenshot-body {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #141c2b 0%, #0c121d 100%);
  overflow: hidden;
}

/* Specifically Demarcated Placeholder Box */
.screenshot-placeholder {
  width: calc(100% - 3rem);
  margin: 1.5rem;
  min-height: 340px;
  border: 2px dashed rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  text-align: center;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.screenshot-placeholder:hover {
  border-color: rgba(16, 185, 129, 0.6);
  background: rgba(15, 23, 42, 0.85);
}

.placeholder-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
  animation: pulseIcon 3s ease-in-out infinite;
}

.placeholder-label {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.placeholder-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.5;
}

.placeholder-badge {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-highlight);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
}

/* Optional live screenshot image container inside frame */
.screenshot-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.screenshot-caption {
  padding: 0.85rem 1.2rem;
  background: #141c2a;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   Section Layouts & Cards
   ========================================================================== */
.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-alt {
  background: rgba(18, 24, 36, 0.6);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Card Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  transition: background var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background: var(--bg-card-hover);
}

.feature-card:hover::before {
  background: linear-gradient(90deg, var(--primary), #38bdf8);
}

.card-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  color: var(--primary);
  font-size: 1.5rem;
  transition: transform var(--transition-fast);
}

.feature-card:hover .card-icon-wrap {
  transform: scale(1.1) rotate(4deg);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--primary);
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: 0.75rem;
  color: #34d399;
}

/* ==========================================================================
   Scroll-Triggered Motion Classes (Intersection Observer)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delay helpers */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Interactive Tabs Component */
.tab-container {
  margin-top: 2rem;
}

.tab-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: var(--primary);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease;
}

.tab-pane.active {
  display: block;
}

/* ==========================================================================
   Donation / Sponsor Component (Requested by User)
   ========================================================================== */
.donation-banner {
  background: linear-gradient(135deg, rgba(255, 94, 91, 0.12) 0%, rgba(22, 30, 46, 0.9) 100%);
  border: 1px solid rgba(255, 94, 91, 0.3);
  border-radius: var(--radius-lg);
  padding: 3rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(255, 94, 91, 0.12);
  margin: 4rem 0;
}

.donation-banner::before {
  content: '☕';
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-size: 160px;
  opacity: 0.08;
  transform: rotate(-15deg);
  pointer-events: none;
}

.donation-content {
  max-width: 650px;
}

.donation-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 94, 91, 0.2);
  color: #ff8583;
  padding: 0.3rem 0.8rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.donation-title {
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.donation-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.8rem;
}

.donation-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

/* ==========================================================================
   Tables & Cheatsheets
   ========================================================================== */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  margin: 2rem 0;
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.styled-table th {
  background: rgba(255, 255, 255, 0.04);
  padding: 1rem 1.2rem;
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.styled-table td {
  padding: 1rem 1.2rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.styled-table tr:last-child td {
  border-bottom: none;
}

.styled-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

.kbd {
  font-family: var(--font-mono);
  background: #1a2230;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.4);
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  font-size: 0.8rem;
  color: #e2e8f0;
  display: inline-block;
  white-space: nowrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #090d14;
  border-top: 1px solid var(--border-color);
  padding: 4.5rem 0 2rem;
  margin-top: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Animations Keyframes
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes floatSubtle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes pulseIcon {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes scanningLight {
  0% { left: -50%; }
  100% { left: 150%; }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-desktop-links {
    display: none;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 3.5rem 0 2.5rem;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta .btn {
    width: 100%;
  }
  .screenshot-placeholder {
    min-height: 260px;
    padding: 1.5rem 1rem;
  }
  .donation-banner {
    padding: 2rem 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}