/* =============================================================================
   GUIDE SOFT IT SOLUTIONS & TRAINING CENTER - ADAPT.COM HIGH-FIDELITY CLONE
   Palette: Adapt warm alabaster (#fbfbf9 / #f5f4ef) & sleek onyx dark (#0d0d0c)
   Signature Gradient: linear-gradient(108deg, #3565d0 0%, #7550c8 50%, #2f7d54 100%)
   ============================================================================= */

:root {
  --adapt-bg: #fbfbf9;
  --adapt-surface: #ffffff;
  --adapt-surface-secondary: #f4f3ee;
  --adapt-card-border: rgba(26, 26, 26, 0.08);
  --adapt-card-border-hover: rgba(26, 26, 26, 0.16);
  --adapt-text-primary: #121212;
  --adapt-text-secondary: #575756;
  --adapt-text-muted: #8c8c88;
  
  --adapt-accent-gradient: linear-gradient(108deg, #3565d0 0%, #7550c8 50%, #2f7d54 100%);
  --adapt-accent-blue: #3565d0;
  --adapt-accent-purple: #7550c8;
  --adapt-accent-green: #2f7d54;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.05), 0 0 1px rgba(0, 0, 0, 0.1);
  --shadow-card-hover: 0 20px 40px -10px rgba(0, 0, 0, 0.09), 0 0 1px rgba(0, 0, 0, 0.15);
  --shadow-dropdown: 0 12px 36px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.04);
}

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

body.adapt-body {
  font-family: var(--font-sans);
  background-color: var(--adapt-bg);
  color: var(--adapt-text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* =============================================================================
   NAVIGATION BAR (ADAPT STICKY HEADER)
   ============================================================================= */
.adapt-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 251, 249, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--adapt-card-border);
  transition: all 0.2s ease;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav-logo-wrap {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-brand-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.nav-brand-logo:hover {
  transform: scale(1.02);
}

.nav-menu-center {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-item-dropdown {
  position: relative;
}

.nav-link-btn, .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  background: transparent;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--adapt-text-primary);
  cursor: pointer;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-link-btn:hover, .nav-link:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--adapt-text-primary);
}

.chevron-icon {
  transition: transform 0.2s ease;
  color: var(--adapt-text-secondary);
}

.nav-item-dropdown.open .chevron-icon {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 320px;
  background: var(--adapt-surface);
  border: 1px solid var(--adapt-card-border);
  border-radius: 12px;
  box-shadow: var(--shadow-dropdown);
  padding: 0.5rem;
  z-index: 1100;
  flex-direction: column;
  gap: 0.25rem;
  animation: dropdownFade 0.2s ease-out;
}

.dropdown-menu.show {
  display: flex;
}

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

.dropdown-item {
  display: flex;
  flex-direction: column;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s ease;
}

.dropdown-item:hover {
  background: var(--adapt-surface-secondary);
}

.dropdown-item strong {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--adapt-text-primary);
  margin-bottom: 0.15rem;
}

.dropdown-item span {
  font-size: 0.78rem;
  color: var(--adapt-text-secondary);
}

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

.btn-nav-login {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--adapt-text-primary);
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.15s ease;
}

.btn-nav-login:hover {
  background: rgba(0, 0, 0, 0.04);
}

.btn-nav-primary {
  padding: 0.55rem 1.15rem;
  background: #111111;
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 9999px;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.btn-nav-primary:hover {
  background: #252525;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* =============================================================================
   HERO SECTION (ADAPT STYLE)
   ============================================================================= */
.adapt-hero {
  padding: 4.5rem 1.5rem 3.5rem;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-content {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 3.5rem;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.85rem;
  background: var(--adapt-surface);
  border: 1px solid var(--adapt-card-border);
  border-radius: 9999px;
  font-size: 0.82rem;
  color: var(--adapt-text-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.hero-pill-badge:hover {
  border-color: var(--adapt-card-border-hover);
  transform: translateY(-1px);
}

.badge-tag {
  background: #111111;
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-text {
  font-weight: 500;
  color: var(--adapt-text-primary);
}

.arrow-right {
  color: var(--adapt-text-muted);
}

.hero-headline {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--adapt-text-primary);
  margin-bottom: 1.5rem;
}

.gradient-pan {
  background: var(--adapt-accent-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientPan 6s linear infinite;
}

@keyframes gradientPan {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}

.hero-subtext {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--adapt-text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 2.25rem;
}

.hero-company-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem 0.65rem;
  background: #ffffff;
  border: 1px solid var(--adapt-card-border);
  border-radius: 9999px;
  font-weight: 600;
  color: var(--adapt-text-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  vertical-align: middle;
}

.pill-logo {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  object-fit: cover;
}

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

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.85rem;
  background: #111111;
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 9999px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-hero-primary:hover {
  background: #252525;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

.btn-hero-secondary {
  padding: 0.85rem 1.65rem;
  background: transparent;
  color: var(--adapt-text-primary);
  border: 1px solid var(--adapt-card-border);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-hero-secondary:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: var(--adapt-card-border-hover);
}

/* =============================================================================
   HERO CIRCUIT CARDS (EXACT ADAPT 3-PANEL REPLICA)
   ============================================================================= */
.hero-circuit-wrap {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin-top: 1rem;
}

.circuit-traces {
  position: absolute;
  top: -40px;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.circuit-cards-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.95fr 0.9fr;
  gap: 1.5rem;
  align-items: stretch;
}

.circuit-card {
  background: var(--adapt-surface);
  border: 1px solid var(--adapt-card-border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-align: left;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.circuit-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--adapt-card-border-hover);
}

.circuit-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--adapt-card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fafaf8;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--adapt-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-sub-header {
  font-size: 0.78rem;
  color: var(--adapt-text-secondary);
  font-weight: 500;
}

.scenario-icons {
  display: flex;
  gap: 0.35rem;
}

.app-icon-btn {
  background: transparent;
  border: 1px solid var(--adapt-card-border);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--adapt-text-secondary);
  padding: 0.2rem 0.45rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: all 0.15s ease;
}

.app-icon-btn.active, .app-icon-btn:hover {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

.circuit-card-body {
  padding: 1.25rem;
  flex: 1;
}

/* Chat Scenario (Card 1) */
.chat-scenario {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.88rem;
}

.scenario-channel {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--adapt-text-secondary);
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--adapt-card-border);
}

.scenario-channel .hash {
  color: var(--adapt-accent-purple);
  margin-right: 0.2rem;
}

.scenario-message {
  display: flex;
  gap: 0.75rem;
}

.msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: #e2e8f0;
  color: #334155;
  font-weight: 700;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.msg-avatar-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}

.msg-body {
  flex: 1;
}

.msg-meta {
  font-size: 0.82rem;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.msg-meta strong {
  color: var(--adapt-text-primary);
}

.msg-meta .time {
  font-size: 0.72rem;
  color: var(--adapt-text-muted);
}

.app-tag {
  background: var(--adapt-accent-blue);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.msg-text {
  color: var(--adapt-text-secondary);
  line-height: 1.45;
}

.agent-thinking {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--adapt-surface-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--adapt-accent-purple);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.pulse-dots span {
  display: inline-block;
  width: 4px;
  height: 4px;
  background: var(--adapt-accent-purple);
  border-radius: 50%;
  margin: 0 1px;
  animation: pulseDot 1.4s infinite ease-in-out both;
}

.pulse-dots span:nth-child(1) { animation-delay: -0.32s; }
.pulse-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes pulseDot {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

.agent-reply {
  color: var(--adapt-text-primary);
  font-weight: 500;
  line-height: 1.45;
}

/* Models Carousel (Card 2) */
.models-carousel-body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.models-roller {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.model-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  transition: all 0.25s ease;
}

.model-row.dim {
  color: var(--adapt-text-muted);
  opacity: 0.6;
}

.model-row.active-model {
  background: #f4f3ff;
  border: 1px solid rgba(117, 80, 200, 0.25);
  color: var(--adapt-accent-purple);
  font-weight: 700;
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(117, 80, 200, 0.08);
}

.active-sparkle {
  color: var(--adapt-accent-purple);
}

.latency-badge {
  margin-left: auto;
  font-size: 0.72rem;
  background: rgba(47, 125, 84, 0.12);
  color: var(--adapt-accent-green);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-weight: 700;
}

/* Infra Waterfall (Card 3) */
.waterfall-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.waterfall-item {
  display: grid;
  grid-template-columns: 105px 1fr 45px;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

.step-name {
  color: var(--adapt-text-secondary);
  white-space: nowrap;
}

.bar-wrap {
  background: rgba(0, 0, 0, 0.04);
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
}

.waterfall-item .bar {
  background: #111111;
  height: 100%;
  border-radius: 4px;
}

.waterfall-item .purple-bar {
  background: var(--adapt-accent-purple);
}

.timing {
  text-align: right;
  color: var(--adapt-text-muted);
}

/* =============================================================================
   TRUST TICKER BAR
   ============================================================================= */
.adapt-trust-bar {
  padding: 3rem 1.5rem;
  border-top: 1px solid var(--adapt-card-border);
  border-bottom: 1px solid var(--adapt-card-border);
  background: var(--adapt-surface-secondary);
  width: 100%;
  text-align: center;
}

.trust-container {
  max-width: 1200px;
  margin: 0 auto;
}

.trust-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--adapt-text-muted);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.trust-badges-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

.trust-chip {
  background: #ffffff;
  border: 1px solid var(--adapt-card-border);
  padding: 0.5rem 1.15rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--adapt-text-secondary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  transition: all 0.2s ease;
}

.trust-chip:hover {
  color: var(--adapt-text-primary);
  border-color: var(--adapt-card-border-hover);
  transform: translateY(-1px);
}

/* =============================================================================
   FULL STACK AI SECTION (3-TIER ADAPT ARCHITECTURE)
   ============================================================================= */
.adapt-stack-section {
  padding: 5.5rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  text-align: center;
}

.stack-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-badge {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--adapt-accent-purple);
  margin-bottom: 0.75rem;
}

.section-heading {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--adapt-text-primary);
  margin-bottom: 1rem;
}

.section-subtext {
  font-size: 1.15rem;
  color: var(--adapt-text-secondary);
  max-width: 620px;
  margin-bottom: 3.5rem;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  width: 100%;
  text-align: left;
}

.stack-card {
  background: var(--adapt-surface);
  border: 1px solid var(--adapt-card-border);
  border-radius: 16px;
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.stack-card.highlight-card {
  border-color: rgba(117, 80, 200, 0.3);
  background: linear-gradient(180deg, #ffffff 0%, #faf8ff 100%);
  position: relative;
}

.stack-icon-box {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

.stack-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--adapt-text-primary);
  margin-bottom: 0.75rem;
}

.stack-card p {
  font-size: 0.95rem;
  color: var(--adapt-text-secondary);
  line-height: 1.55;
  margin-bottom: 1.5rem;
}

.stack-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--adapt-text-secondary);
  margin-bottom: 2rem;
}

.stack-link {
  margin-top: auto;
  font-size: 0.92rem;
  font-weight: 700;
  color: #111111;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.15s ease;
}

.stack-link:hover {
  gap: 0.6rem;
  color: var(--adapt-accent-purple);
}

/* =============================================================================
   MASTER FOOTER (ADAPT STYLE)
   ============================================================================= */
.adapt-footer {
  background: #111111;
  color: #ffffff;
  padding: 4.5rem 1.5rem 2rem;
  margin-top: auto;
  width: 100%;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1.25rem;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: #a1a1aa;
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 320px;
  margin-bottom: 1.5rem;
}

.footer-vps-pill {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  color: #22c55e;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #f4f4f5;
  margin-bottom: 1.25rem;
}

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

.footer-col a {
  color: #a1a1aa;
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom-bar {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #71717a;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links-inline {
  display: flex;
  gap: 1.5rem;
}

.footer-links-inline a {
  color: #71717a;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links-inline a:hover {
  color: #ffffff;
}

/* =============================================================================
   MAPPED URL MODAL (FULL VIEWER FOR ALL SUB-PAGES)
   ============================================================================= */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.show {
  display: flex;
}

.modal-card {
  background: #ffffff;
  width: 100%;
  max-width: 820px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  position: relative;
  animation: modalEnter 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.96) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(0, 0, 0, 0.05);
  border: none;
  font-size: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.modal-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

.modal-page-header {
  margin-bottom: 2rem;
}

.modal-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--adapt-accent-purple);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.modal-page-header h2 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--adapt-text-primary);
  margin-bottom: 0.75rem;
}

.modal-page-header p {
  font-size: 1.05rem;
  color: var(--adapt-text-secondary);
  line-height: 1.5;
}

.modal-body-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.modal-feature-box {
  background: var(--adapt-surface-secondary);
  border: 1px solid var(--adapt-card-border);
  padding: 1.25rem;
  border-radius: 12px;
}

.modal-feature-box h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--adapt-text-primary);
  margin-bottom: 0.4rem;
}

.modal-feature-box p {
  font-size: 0.86rem;
  color: var(--adapt-text-secondary);
  line-height: 1.45;
}

.modal-cta-box {
  display: flex;
  justify-content: flex-start;
  margin-top: 1.5rem;
}

@media (max-width: 640px) {
  .modal-body-grid {
    grid-template-columns: 1fr;
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .circuit-cards-grid {
    grid-template-columns: 1fr;
  }
  .stack-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu-center {
    display: none;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .footer-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}