/* ============================================================
   EntArchBot — Styles
   Modern dark-themed enterprise SaaS landing page
   ============================================================ */

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

:root {
  /* Palette */
  --bg: #09090b;
  --bg-subtle: #111114;
  --bg-card: #161619;
  --bg-card-hover: #1e1e22;
  --border: #27272a;
  --border-light: #3f3f46;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --success: #22c55e;
  --warning: #f59e0b;
  --gradient: linear-gradient(135deg, var(--primary), var(--accent));
  --gradient-text: linear-gradient(135deg, var(--primary-light), var(--accent-light));

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Sizing */
  --container: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

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

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: 16px;
  line-height: 1.2;
}

.section-subtitle {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
}

.btn--sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(99, 102, 241, 0.5);
}

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

.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.06);
}

.btn--full {
  width: 100%;
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), padding 0.3s var(--ease);
}

.navbar.scrolled {
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
  padding: 10px 0;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.navbar__links {
  display: flex;
  gap: 32px;
}

.navbar__links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
  font-weight: 500;
}

.navbar__links a:hover {
  color: var(--text);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 75%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-top: 20px;
}

.hero__subtitle {
  margin-top: 24px;
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
}

.hero__ctas {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.hero__note {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.hero__scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-dim);
  animation: float 2.5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Terminal */
.hero__terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(99, 102, 241, 0.08),
    0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal__dot--red { background: #ef4444; }
.terminal__dot--yellow { background: #f59e0b; }
.terminal__dot--green { background: #22c55e; }

.terminal__title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.terminal__body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
}

.terminal__line {
  color: var(--text-muted);
  opacity: 0;
  animation: termLine 0.4s var(--ease) forwards;
}

.terminal__line:nth-child(1) { animation-delay: 0.2s; }
.terminal__line:nth-child(2) { animation-delay: 0.7s; }
.terminal__line:nth-child(3) { animation-delay: 1.3s; }
.terminal__line:nth-child(4) { animation-delay: 1.9s; }
.terminal__line:nth-child(5) { animation-delay: 2.5s; }
.terminal__line:nth-child(6) { animation-delay: 3.1s; }
.terminal__line:nth-child(7) { animation-delay: 3.7s; }

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

.terminal__prompt {
  color: var(--accent);
  margin-right: 8px;
}

.terminal__line--success { color: var(--success); }
.terminal__line--info { color: var(--text-muted); }
.terminal__line--accent { color: var(--accent-light); }

.terminal__icon {
  margin-right: 6px;
}

.terminal__line code {
  background: rgba(99, 102, 241, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--primary-light);
}

.terminal__cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ---------- Logos ---------- */
.logos {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.logos__label {
  text-align: center;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.logos__row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px 48px;
}

.logos__item {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

.logos__item:hover {
  color: var(--text-muted);
}

/* ---------- Features ---------- */
.features {
  padding: 120px 0;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all 0.3s var(--ease);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-sm);
  color: var(--primary-light);
  margin-bottom: 20px;
}

.feature-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---------- How It Works ---------- */
.how-it-works {
  padding: 120px 0;
  background: var(--bg-subtle);
}

.steps {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 56px;
  bottom: 56px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  border-radius: 2px;
}

.step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 28px 0;
}

.step__number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient);
  color: #fff;
  border-radius: 50%;
  position: relative;
  z-index: 1;
}

.step__content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step__content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- Architecture Diagram ---------- */
.architecture {
  padding: 120px 0;
}

.arch-diagram {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.arch-diagram__canvas {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(4, 80px);
  gap: 16px;
  padding: 40px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.arch-node {
  grid-column: var(--col);
  grid-row: var(--row);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  text-align: center;
  z-index: 2;
  transition: transform 0.3s var(--ease);
}

.arch-node:hover {
  transform: scale(1.08);
}

.arch-node__icon {
  font-size: 1.3rem;
}

.arch-node--source {
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--primary-light);
}

.arch-node--gateway {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--warning);
}

.arch-node--service {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--accent-light);
}

.arch-node--data {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.25);
  color: var(--success);
}

.arch-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.arch-line {
  stroke: rgba(99, 102, 241, 0.3);
  stroke-width: 1.5;
  stroke-dasharray: 6 4;
  animation: dashMove 2s linear infinite;
}

.arch-line--delay-1 { animation-delay: 0.5s; }
.arch-line--delay-2 { animation-delay: 1s; }

@keyframes dashMove {
  to { stroke-dashoffset: -20; }
}

.arch-diagram__caption {
  text-align: center;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ---------- Stats ---------- */
.stats {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__number {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__suffix {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 700;
  color: var(--text-dim);
}

.stat__label {
  display: block;
  margin-top: 4px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- Testimonials ---------- */
.testimonials {
  padding: 120px 0;
  background: var(--bg-subtle);
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s var(--ease);
}

.testimonial-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.testimonial-card__quote {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-card__quote::before {
  content: '\201C';
  font-size: 2rem;
  line-height: 0;
  vertical-align: -0.4em;
  margin-right: 4px;
  color: var(--primary);
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.testimonial-card__author strong {
  display: block;
  font-size: 0.9rem;
}

.testimonial-card__author span {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---------- Pricing ---------- */
.pricing {
  padding: 120px 0;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: all 0.3s var(--ease);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.pricing-card--featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.06) 0%, var(--bg-card) 100%);
  box-shadow: 0 0 0 1px var(--primary), 0 8px 40px rgba(99, 102, 241, 0.2);
  transform: scale(1.04);
}

.pricing-card--featured:hover {
  transform: scale(1.04) translateY(-4px);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.pricing-card__price {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 12px;
}

.pricing-card__currency {
  font-size: 1.5rem;
  vertical-align: super;
  color: var(--text-dim);
}

.pricing-card__period {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-dim);
}

.pricing-card__features {
  text-align: left;
  margin-bottom: 28px;
}

.pricing-card__features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.pricing-card__features li:last-child {
  border-bottom: none;
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
  margin-right: 10px;
}

/* Credits explainer */
.credits-explainer {
  max-width: 860px;
  margin: 0 auto 56px;
}

.credits-explainer__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.credits-explainer__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.credits-explainer__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-sm);
  color: var(--primary-light);
}

.credits-explainer__item strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.credits-explainer__item span {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* Pricing card credits badge */
.pricing-card__credits {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-light);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 100px;
  padding: 6px 16px;
  display: inline-block;
  margin-bottom: 24px;
}

/* Custom price text */
.pricing-card__price--custom {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 12px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Pricing footnote */
.pricing__footnote {
  text-align: center;
  margin-top: 40px;
  font-size: 0.85rem;
  color: var(--text-dim);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.pricing__footnote a {
  color: var(--primary-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pricing__footnote a:hover {
  color: var(--accent-light);
}

/* ---------- CTA ---------- */
.cta {
  padding: 120px 0;
  background: var(--bg-subtle);
}

.cta__inner {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.cta__subtitle {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.cta__form {
  display: flex;
  gap: 12px;
  margin-top: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta__input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.cta__input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.cta__input::placeholder {
  color: var(--text-dim);
}

.cta__note {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---------- Footer ---------- */
.footer {
  padding: 80px 0 32px;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
}

.footer__tagline {
  margin-top: 12px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer__col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer__col a {
  display: block;
  padding: 4px 0;
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.2s;
}

.footer__col a:hover {
  color: var(--text);
}

.footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---------- Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.reveal--delay-1 { transition-delay: 0.12s; }
.reveal--delay-2 { transition-delay: 0.24s; }
.reveal--delay-3 { transition-delay: 0.36s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__ctas {
    justify-content: center;
  }

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

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

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

  .pricing-card:last-child {
    grid-column: span 2;
    max-width: 400px;
    justify-self: center;
  }

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

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

  .credits-explainer__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(9, 9, 11, 0.95);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

  .navbar__links.open {
    display: flex;
  }

  .navbar__hamburger {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .features__grid,
  .testimonials__grid,
  .pricing__grid {
    grid-template-columns: 1fr;
  }

  .pricing-card:last-child {
    grid-column: span 1;
    max-width: none;
  }

  .pricing-card--featured {
    transform: none;
  }

  .pricing-card--featured:hover {
    transform: translateY(-4px);
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .cta__form {
    flex-direction: column;
  }

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

  .arch-diagram__canvas {
    grid-template-rows: repeat(4, 70px);
    padding: 24px 10px;
    gap: 10px;
  }

  .arch-node {
    font-size: 0.6rem;
    padding: 6px 4px;
  }

  .arch-node__icon {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.8rem;
  }

  .section-title {
    font-size: 1.6rem;
  }
}