/* mdslides Public Website Styles
   Modular, clean, and responsive design. */

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

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Ambient Radial Glow */
.ambient-glow {
  position: absolute;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface-glass);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--fg-heading);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--fg-heading);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Theme Switcher Button */
.theme-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface);
  color: var(--accent);
}

.icon-sun, .icon-moon {
  width: 16px;
  height: 16px;
}

/* Default dark: show sun icon (to switch to light) */
.icon-moon { display: none; }
.icon-sun { display: block; }

/* Light theme: show moon icon (to switch to dark) */
[data-theme="light"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
}

.btn-outline {
  background: var(--bg-surface);
  color: var(--fg);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-elevated);
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 5.5rem 0 3.5rem;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
  margin-bottom: 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.hero-pill .dot {
  width: 6px;
  height: 6px;
  background: #10b981;
  border-radius: 50%;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5.5vw, 4.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--fg-heading);
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--fg-muted);
  max-width: 720px;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* Quick Install Box */
.hero-quick-install {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #93c5fd;
  box-shadow: var(--shadow-card);
  max-width: 100%;
}

.hero-quick-install code {
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.hero-quick-install code::-webkit-scrollbar {
  display: none;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--fg-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem;
  border-radius: var(--radius-xs);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.copy-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

/* Interactive Deck Simulator */
.simulator-section {
  margin: 2rem 0 5rem;
}

.deck-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-normal);
}

.deck-frame-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

.deck-window-dots {
  display: flex;
  gap: 6px;
}

.deck-window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-hover);
}

.deck-frame-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.deck-frame-tip {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
}

.sim-card {
  background: var(--bg-stage);
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 4.5% 6.5%;
  border: 1px solid var(--border);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
}

.sim-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sim-screen {
  display: none;
  height: 100%;
  flex-direction: column;
}

.sim-screen.active {
  display: flex;
  animation: simFade 0.25s ease forwards;
}

@keyframes simFade {
  from { opacity: 0; transform: translateX(8px); }
  to { opacity: 1; transform: translateX(0); }
}

.sim-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--fg-heading);
}

.sim-body {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: 0;
}

.sim-text {
  flex: 1;
  font-size: 0.975rem;
  color: var(--fg-muted);
}

.sim-text p {
  margin-bottom: 0.75rem;
}

.sim-text strong {
  color: var(--fg-heading);
}

.sim-media {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  height: 85%;
  padding: 1rem;
  text-align: center;
}

.sim-grid-4 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  width: 100%;
  height: 100%;
}

.sim-grid-cell {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-subtle);
}

.sim-hud {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  user-select: none;
}

.sim-hud button {
  background: transparent;
  border: none;
  color: var(--fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0.25rem;
  border-radius: 50%;
  transition: color var(--transition-fast);
}

.sim-hud button:hover {
  color: var(--accent);
}

.sim-counter {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
}

/* Features Section */
.features-section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg-heading);
}

.bento-features {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.feature-card.span-8 { grid-column: span 8; }
.feature-card.span-4 { grid-column: span 4; }
.feature-card.span-6 { grid-column: span 6; }

.feature-icon {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--accent-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg-heading);
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Comparison Section */
.comparison-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, transparent 0%, var(--accent-subtle) 50%, transparent 100%);
}

.comparison-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}

.editor-pane, .preview-pane {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface-elevated);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.pane-content {
  padding: 1.5rem;
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
}

.pane-content pre {
  white-space: pre-wrap;
  color: var(--fg);
}

.preview-rendered {
  padding: 2.25rem;
  background: var(--bg-stage);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.preview-rendered h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--fg-heading);
  margin-bottom: 0.75rem;
}

.preview-rendered p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.preview-rendered ul {
  color: var(--fg);
  font-size: 0.9rem;
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

.preview-rendered .preview-callout {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--accent);
  text-align: center;
}

/* ==========================================================================
   INSTALLATION SECTION (FIXED LAYOUT STRUCTURE)
   Addresses uneven heights, bad text-wrapping, and vertical alignment issues.
   ========================================================================== */
.install-section {
  padding: 5.5rem 0;
}

/* ==========================================================================
   INSTALLATION SLIDESHOW & STEP-THROUGH SECTION
   Replaces the cramped 3-column grid with a spacious, interactive slideshow
   featuring tabs, next/prev controls, and slow auto-play.
   ========================================================================== */
.install-section {
  padding: 5.5rem 0;
}

.install-slideshow-wrapper {
  max-width: 960px;
  margin: 3rem auto 0;
}



/* Slideshow Card */
.install-carousel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.install-carousel-card:hover {
  border-color: var(--border-accent);
}

/* Subtle Countdown Progress Bar */
.install-timer-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--accent);
  width: 0%;
  z-index: 10;
}

.install-card-inner {
  padding: 2.5rem 3rem;
}

/* Slides Container */
.install-slides-container {
  position: relative;
  min-height: 280px;
}

.install-slide {
  display: none;
  flex-direction: column;
}

.install-slide.active {
  display: flex;
  animation: slideIn 0.3s cubic-bezier(0.2, 0, 0, 1) forwards;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Slide Header */
.install-slide-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.install-slide-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.install-slide-title-group h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--fg-heading);
}

.install-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background: var(--accent-subtle);
  color: var(--accent);
  border-radius: var(--radius-xs);
}

/* Slide Navigation Controls */
.install-slide-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.install-step-counter {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-right: 0.5rem;
}

.install-nav-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: var(--radius-sm);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.install-nav-btn:hover {
  border-color: var(--border-hover);
  background: var(--accent-subtle);
  color: var(--accent);
}

/* Slide Content */
.install-slide-desc {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Features Pills Row */
.install-feature-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.install-feature-pill {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--fg-subtle);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.65rem;
}

/* Wide, Generous Code Display Box */
.install-code-box {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.install-code-box code {
  font-family: var(--font-mono);
  font-size: 0.925rem;
  color: #93c5fd;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-right: 0.5rem;
}

.install-code-box code::-webkit-scrollbar {
  display: none;
}

/* Prominent Copy Button with Text & Icon */
.install-code-box .slide-copy-btn {
  flex-shrink: 0;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--fg);
  cursor: pointer;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.825rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.install-code-box .slide-copy-btn:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

.install-code-box .slide-copy-btn.copied {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-color: #10b981;
}

.install-nav-btn svg,
.slide-copy-btn svg,
.copy-btn svg {
  pointer-events: none;
}

.install-slide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--fg-subtle);
  margin-top: 0.5rem;
}

.install-slide-footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.install-slide-footer a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .install-card-inner { padding: 1.5rem; }
  .install-slide-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .install-code-box { flex-direction: column; align-items: stretch; gap: 0.75rem; }
  .install-code-box .slide-copy-btn { justify-content: center; }
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 4.5rem 0 2.5rem;
  margin-top: 5rem;
  background: var(--bg);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand p {
  color: var(--fg-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

.footer-links-col h5 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--fg-heading);
}

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

.footer-links-col a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links-col a:hover {
  color: var(--fg-heading);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 2.25rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.95rem;
  color: var(--fg-muted);
  text-align: center;
}

.footer-bottom p {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

.footer-bottom a {
  color: var(--fg-heading);
  text-decoration: none;
  font-weight: 600;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.footer-bottom a:hover {
  color: var(--accent);
  background: var(--accent-subtle);
  text-decoration: underline;
}

.heart-icon {
  display: inline-block;
  color: #ef4444;
  margin: 0 0.15rem;
  transform-origin: center;
  animation: pulseHeart 1.8s ease-in-out infinite;
}

@keyframes pulseHeart {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .bento-features { grid-template-columns: 1fr; }
  .feature-card.span-8, .feature-card.span-4, .feature-card.span-6 { grid-column: span 1; }
  .comparison-split { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .deck-frame { padding: 0.75rem; }
}