/* ===== NAVIGATION ===== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 var(--space-8);
  transition: background var(--transition-slow), border-color var(--transition-slow), backdrop-filter var(--transition-slow);
}

.site-nav.scrolled {
  background: rgba(7, 8, 12, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: var(--php-glow);
  transition: transform var(--transition-base);
}

.nav-logo:hover .nav-logo-icon {
  transform: scale(1.08);
}

.nav-logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--php-glow);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

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

.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* GitHub badge */
.github-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: border-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
}

.github-badge:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  box-shadow: var(--glow-php-soft);
}

.github-badge svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  fill: currentColor;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base), background var(--transition-fast);
}

.nav-hamburger:hover span {
  background: var(--text-primary);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile overlay */
.nav-mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(7, 8, 12, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.nav-mobile-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile-overlay .nav-link {
  font-size: var(--text-2xl);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--text-secondary);
}

.nav-mobile-overlay .nav-link:hover {
  color: var(--php-glow);
}

.nav-mobile-close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-8);
  color: var(--text-tertiary);
  font-size: var(--text-3xl);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
}


/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base), filter var(--transition-fast);
  cursor: pointer;
  border: none;
  white-space: nowrap;
  min-height: 48px;
  /* Required for ripple pseudo-element */
  position: relative;
  overflow: hidden;
}

/* Ripple effect — origin set via --rip-x/--rip-y by JS */
.btn::after {
  content: '';
  position: absolute;
  top: var(--rip-y, 50%);
  left: var(--rip-x, 50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  opacity: 0;
}

.btn.rip::after {
  animation: ripple 550ms var(--ease-out) forwards;
}

.btn:hover {
  transform: scale(1.02) translateY(-1px);
}

.btn:active {
  transform: scale(0.99);
}

.btn-primary {
  background: var(--php-glow);
  color: white;
  box-shadow: var(--glow-php);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 40px rgba(157, 91, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-default);
}

.btn-secondary:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  box-shadow: var(--glow-php-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 14px 0;
}

.btn-ghost:hover {
  color: var(--php-glow);
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}


/* ===== CARDS ===== */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
  position: relative;
  overflow: hidden;
}

/* Shimmer that sweeps left → right on hover */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.04) 50%,
    transparent 60%
  );
  background-size: 200% 100%;
  background-position: 200% 0;
  transition: background-position 600ms var(--ease-out);
  pointer-events: none;
  border-radius: inherit;
}

.card:hover::before {
  background-position: -100% 0;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-strong);
}

.card--glow:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-xl), var(--glow-php-soft);
}


/* ===== EYEBROW ===== */
.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.15em;
  color: var(--php-glow);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}


/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(157, 91, 255, 0.12);
  border: 1px solid rgba(157, 91, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--php-glow);
}

.badge img {
  height: 16px;
  width: auto;
}


/* ===== SCREENSHOT FRAME ===== */
.screenshot-frame {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-xl), var(--glow-php-soft);
  overflow: hidden;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  outline: 1px solid rgba(255, 255, 255, 0.08);
  outline-offset: -1px;
}

.screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.screenshot-frame:hover {
  transform: perspective(1000px) rotateY(-2deg) scale(1.01);
  box-shadow: var(--shadow-xl), 0 0 80px rgba(157, 91, 255, 0.25);
}

.feature-row--reverse .screenshot-frame:hover {
  transform: perspective(1000px) rotateY(2deg) scale(1.01);
}


/* ===== COMPARISON TABLE ===== */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-10);
  font-size: var(--text-sm);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table thead th {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  padding-top: 0;
}

.comparison-table thead th:first-child {
  color: var(--text-disabled);
}

.comparison-table thead th:nth-child(2) {
  color: var(--php-glow);
}

.comparison-table tbody th {
  font-weight: 600;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
}

.comparison-table tbody td {
  color: var(--text-secondary);
}

.comparison-table tbody td:nth-child(2) {
  color: var(--text-primary);
  font-weight: 500;
}

.comparison-table tbody tr:last-child th,
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover th,
.comparison-table tbody tr:hover td {
  background: rgba(157, 91, 255, 0.04);
}


/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-indicator-arrow {
  width: 24px;
  height: 24px;
  color: var(--text-tertiary);
  animation: scrollBounce 2s ease-in-out infinite;
}


/* ===== MOBILE DOWNLOAD BAR ===== */
.mobile-download-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  padding: var(--space-3) var(--space-4);
  background: rgba(14, 17, 22, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  gap: var(--space-3);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.mobile-download-bar.visible {
  opacity: 1;
  transform: translateY(0);
}

.mobile-download-bar .btn {
  flex: 1;
  max-width: 200px;
  font-size: var(--text-sm);
  padding: 12px var(--space-4);
}