/* ===== CSS Custom Properties (Theme) ===== */
:root {
  --bg: #f5f5f7;
  --surface: #fafafa;
  --surface-2: #f0f0f2;
  --border: #e0e0e2;
  --border-light: #d0d0d2;
  --text: #1a1a1e;
  --text-2: #5a5a60;
  --text-3: #8a8a90;
  --teal: #0fb5c8;
  --teal-dim: #0a7e8c;
  --teal-hover: #12c9de;
  --red: #e5484d;
  --green: #30a46c;
  --amber: #f5a623;
  --dark-bg: #18181b;
  --dark-surface: #27272a;
  --dark-border: #3f3f46;
  --dark-text: #fafafa;
  --dark-text-2: #a1a1aa;
  --dark-text-3: #71717a;
  --font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ===== Base Styles ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "cv11", "ss01";
  line-height: 1.5;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
}
ul {
  list-style: none;
}
input,
button,
textarea {
  font-family: inherit;
  font-size: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
h1,
h2,
h3,
h4,
h5 {
  font-weight: 500;
  letter-spacing: -0.02em;
}
code,
pre,
.font-mono {
  font-family: var(--font-mono);
}

/* ===== Page Container ===== */
.page {
  display: none;
}
.page.active {
  display: block;
}

/* ===== Animation Keyframes ===== */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes slide-down {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes bar-grow {
  from {
    height: 0;
  }
}

/* ===== Animation Utilities ===== */
.animate-on-scroll {
  opacity: 0;
  transition:
    opacity 0.7s ease-out,
    transform 0.7s ease-out;
}
.animate-on-scroll.visible {
  opacity: 1;
}
.fade-up {
  transform: translateY(24px);
}
.fade-up.visible {
  transform: translateY(0);
}
.fade-left {
  transform: translateX(-20px);
}
.fade-left.visible {
  transform: translateX(0);
}
.fade-right {
  transform: translateX(20px);
}
.fade-right.visible {
  transform: translateX(0);
}
.scale-in {
  transform: scale(0.9);
}
.scale-in.visible {
  transform: scale(1);
}

/* ===== Nav ===== */
.nav {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  padding: 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: rgba(245, 245, 247, 0.7);
  transition: all 0.5s;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav.scrolled .nav-inner {
  background: rgba(245, 245, 247, 0.9);
  border-color: var(--border-light);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-logo img {
  height: 2rem;
}
.nav-logo span {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.025em;
  color: var(--text);
}
.nav-divider {
  width: 1px;
  height: 1rem;
  background: var(--border);
}
.nav-links {
  display: none;
}
@media (min-width: 768px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
  }
}
.nav-link {
  font-size: 0.75rem;
  color: var(--text-2);
  transition: color 0.2s;
  cursor: pointer;
}
.nav-link:hover {
  color: var(--text);
}
.nav-login {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.2s;
  cursor: pointer;
}
.nav-login:hover {
  color: var(--text);
}
.nav-cta {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  background: var(--teal);
  color: var(--bg);
  transition: all 0.2s;
  cursor: pointer;
}
.nav-cta:hover {
  background: var(--teal-hover);
  transform: translateY(-1px);
}

/* ===== Section Common ===== */
.section-pad {
  padding: 6rem 0;
}
@media (min-width: 768px) {
  .section-pad {
    padding: 8rem 0;
  }
}
.section-pad-lg {
  padding: 8rem 0;
}
@media (min-width: 768px) {
  .section-pad-lg {
    padding: 11rem 0;
  }
}
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .container {
    padding: 0 3rem;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 5rem;
  overflow: hidden;
}
@media (min-width: 768px) {
  .hero {
    padding-top: 11rem;
    padding-bottom: 8rem;
  }
}
.hero-glow {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background: radial-gradient(
    ellipse 60% 50% at 70% 40%,
    color-mix(in srgb, var(--teal-dim) 15%, transparent),
    transparent
  );
  pointer-events: none;
}
.hero-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 2rem;
    align-items: start;
  }
}
.hero-title {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--text);
}
@media (min-width: 768px) {
  .hero-title {
    font-size: 4.5rem;
  }
}
@media (min-width: 1024px) {
  .hero-title {
    font-size: 5.5rem;
  }
}
.hero-title-teal {
  color: var(--teal);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--teal) 25%, transparent);
  text-underline-offset: 6px;
  text-decoration-thickness: 3px;
}
.hero-sub {
  margin-top: 2rem;
  font-size: 1rem;
  line-height: 1.75;
  max-width: 32rem;
  color: var(--text-2);
}
@media (min-width: 768px) {
  .hero-sub {
    font-size: 1.125rem;
  }
}
.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--teal);
  color: var(--bg);
  transition: all 0.2s;
  cursor: pointer;
}
.hero-btn:hover {
  background: var(--teal-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--teal) 19%, transparent);
}
.hero-btn-icon {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform 0.2s;
}
.hero-btn:hover .hero-btn-icon {
  transform: translateX(2px);
}
.hero-note {
  margin-top: 1.25rem;
  font-size: 0.75rem;
  color: var(--text-3);
}

/* Hero Visual (cost table card) */
.hero-visual {
  margin-top: 2rem;
}
@media (min-width: 768px) {
  .hero-visual {
    margin-top: 2rem;
  }
}
.cost-card {
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  background: var(--surface);
}
.cost-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.cost-dots {
  display: flex;
  gap: 0.375rem;
}
.cost-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 9999px;
}
.cost-dot.red {
  background: color-mix(in srgb, var(--red) 50%, transparent);
}
.cost-dot.amber {
  background: color-mix(in srgb, var(--amber) 50%, transparent);
}
.cost-dot.green {
  background: color-mix(in srgb, var(--green) 50%, transparent);
}
.cost-card-title {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-3);
}
.cost-table {
  padding: 1rem;
}
.cost-header {
  display: grid;
  grid-template-columns: 1fr 3.5rem 2.5rem;
  font-size: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-3);
  margin-bottom: 0.5rem;
}
.cost-header-center {
  text-align: center;
}
.cost-row {
  display: grid;
  grid-template-columns: 1fr 3.5rem 2.5rem;
  align-items: center;
  font-size: 0.75rem;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: background 0.3s;
  color: var(--text-2);
}
.cost-row.active {
  background: var(--surface-2);
}
.cost-row-endpoint {
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cost-row-price {
  text-align: center;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text);
}
.cost-row-trend {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.cost-row-trend.bad {
  color: var(--red);
}
.cost-row-trend.good {
  color: var(--green);
}
.cost-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--border);
}
.cost-total-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-2);
}
.cost-total-value {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-right: 0.5rem;
  color: var(--teal);
}

/* ===== Problem Statement ===== */
.problem-grid {
  display: grid;
  gap: 3rem;
  align-items: start;
}
@media (min-width: 768px) {
  .problem-grid {
    grid-template-columns: 4fr 7fr;
    gap: 3rem;
  }
}
.problem-sticky {
  position: sticky;
  top: 8rem;
}
.problem-number {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--teal);
}
@media (min-width: 768px) {
  .problem-number {
    font-size: 3.75rem;
  }
}
.problem-label {
  font-size: 0.75rem;
  margin-top: 0.5rem;
  color: var(--text-3);
}
.problem-text {
  font-size: 1.5rem;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
}
@media (min-width: 768px) {
  .problem-text {
    font-size: 1.875rem;
  }
}
.problem-body {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-2);
}
.problem-quote {
  font-size: 1rem;
  line-height: 1.75;
  border-left: 2px solid var(--teal);
  padding-left: 1.25rem;
  color: var(--text-2);
}
.problem-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ===== Bento Features ===== */
.bento-header {
  margin-bottom: 4rem;
}
.bento-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--teal);
}
.bento-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 0.75rem;
  color: var(--text);
}
@media (min-width: 768px) {
  .bento-title {
    font-size: 3rem;
  }
}
.bento-title-light {
  color: var(--text-2);
}
.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}
.bento-card {
  border-radius: 1rem;
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  background: var(--surface);
  transition: box-shadow 0.3s;
}
.bento-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}
.bento-card-glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s;
  pointer-events: none;
}
.bento-card:hover .bento-card-glow {
  opacity: 1;
}
.bento-card-content {
  position: relative;
}
.bento-card-num {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
}
.bento-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0.75rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
@media (min-width: 768px) {
  .bento-card-title.lg {
    font-size: 1.5rem;
  }
}
.bento-card-desc {
  font-size: 0.875rem;
  margin-top: 0.5rem;
  max-width: 24rem;
  line-height: 1.6;
  color: var(--text-2);
}
.bento-card.colspan-4 {
  grid-column: span 1;
}
@media (min-width: 768px) {
  .bento-card.colspan-4 {
    grid-column: span 4;
  }
}
.bento-card.colspan-2 {
  grid-column: span 1;
}
@media (min-width: 768px) {
  .bento-card.colspan-2 {
    grid-column: span 2;
  }
}

/* Bar chart in feature card */
.bar-chart {
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
  height: 8rem;
  margin-top: 2rem;
}
.bar {
  flex: 1;
  border-radius: 0.125rem;
  transition: all 0.3s;
  background: var(--border-light);
}
.bar.teal {
  background: var(--teal);
}
.bar.red {
  background: color-mix(in srgb, var(--red) 38%, transparent);
}
.bar.grow {
  animation: bar-grow 0.6s ease-out forwards;
}

/* N+1 detector in card */
.n1-chain {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.n1-request {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: color-mix(in srgb, var(--teal) 8%, transparent);
  color: var(--teal);
}
.n1-request-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 9999px;
  background: var(--teal);
}
.n1-chain-nested {
  padding-left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.n1-query {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.625rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: color-mix(in srgb, var(--red) 7%, transparent);
  color: var(--red);
}
.n1-query-mult {
  font-weight: 700;
}

/* PR check items */
.pr-checks {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.pr-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
}
.pr-check-icon {
  width: 1rem;
  height: 1rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  flex-shrink: 0;
}
.pr-check-icon.pass {
  background: color-mix(in srgb, var(--green) 13%, transparent);
  color: var(--green);
}
.pr-check-icon.warn {
  background: color-mix(in srgb, var(--amber) 13%, transparent);
  color: var(--amber);
}
.pr-check-text {
  color: var(--text-2);
}

/* PR fix code block */
.fix-block {
  margin-top: 2rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  overflow: hidden;
}
.fix-header {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface-2);
  color: var(--text-3);
  border-bottom: 1px solid var(--border);
}
.fix-header-plus {
  color: var(--green);
}
.fix-body {
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}
.fix-removed {
  color: var(--red);
}
.fix-added {
  color: var(--green);
}
.fix-note {
  color: var(--text-3);
  padding-top: 0.5rem;
}

/* ===== Terminal Section ===== */
.terminal-grid {
  display: grid;
  gap: 3rem;
  align-items: start;
}
@media (min-width: 768px) {
  .terminal-grid {
    grid-template-columns: 4fr 8fr;
    gap: 3rem;
  }
}
.terminal-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--teal);
}
.terminal-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 0.75rem;
  color: var(--text);
}
@media (min-width: 768px) {
  .terminal-title {
    font-size: 2.25rem;
  }
}
.terminal-desc {
  font-size: 0.875rem;
  margin-top: 1rem;
  line-height: 1.6;
  color: var(--text-2);
}
.terminal-tabs {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.terminal-tab {
  position: relative;
  font-size: 0.75rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  transition: all 0.2s;
  cursor: pointer;
  color: var(--text-2);
  background: transparent;
}
.terminal-tab.active {
  background: var(--teal);
  color: var(--bg);
  border-color: var(--teal);
  font-weight: 600;
}
.terminal-card {
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  background: var(--surface);
}
.terminal-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.terminal-card-body {
  padding: 1.5rem;
  min-height: 280px;
}
.terminal-card-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  margin-left: 0.5rem;
  color: var(--text-3);
}

/* Terminal tab content */
.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}
.tab-content-animate {
  animation: slide-down 0.2s ease-out;
}

/* N+1 detail in terminal */
.n1-critical {
  border-radius: 0.5rem;
  border: 1px solid color-mix(in srgb, var(--red) 19%, transparent);
  padding: 1rem;
  background: color-mix(in srgb, var(--red) 3%, transparent);
  margin-bottom: 1rem;
}
.n1-critical-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.n1-critical-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: var(--red);
  animation: pulse 2s infinite;
}
.n1-critical-label {
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--red);
}
.n1-critical-desc {
  font-size: 0.75rem;
  margin-bottom: 1rem;
  color: var(--text);
}
.n1-critical-path {
  font-weight: 600;
  font-family: var(--font-mono);
}
.n1-chain-demo {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.n1-chain-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.n1-chain-badge {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  background: color-mix(in srgb, var(--teal) 8%, transparent);
  color: var(--teal);
}
.n1-chain-arrow {
  font-size: 0.75rem;
  color: var(--text-3);
}
.n1-chain-sql {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  background: var(--surface-2);
  color: var(--text-2);
}
.n1-chain-badge.red {
  background: color-mix(in srgb, var(--red) 7%, transparent);
  color: var(--red);
  font-weight: 700;
}
.n1-chain-sql.red {
  background: color-mix(in srgb, var(--red) 7%, transparent);
  color: var(--red);
}
.n1-impact {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-top: 1rem;
}
.n1-impact strong {
  font-weight: 600;
  color: var(--text);
}

/* PR review in terminal */
.pr-review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.pr-review-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-3);
}
.pr-review-title span {
  color: var(--text);
}
.pr-review-badge {
  font-size: 0.625rem;
  font-family: var(--font-mono);
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--green) 8%, transparent);
  color: var(--green);
}
.pr-review-meta {
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  padding: 0.75rem;
  background: var(--surface-2);
  margin-bottom: 1rem;
}
.pr-review-meta-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
}
.pr-review-stat {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.pr-review-stat-label {
  color: var(--text-3);
}
.pr-review-stat-value {
  font-weight: 600;
  color: var(--text);
}
.pr-review-stat-plus {
  color: var(--green);
}
.pr-review-stat-minus {
  color: var(--red);
}

.pr-review-checks {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 1rem;
}
.pr-review-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.75rem;
}
.pr-review-check-icon {
  width: 1rem;
  height: 1rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.pr-review-check-icon.pass {
  background: color-mix(in srgb, var(--green) 13%, transparent);
  color: var(--green);
}
.pr-review-check-icon.warn {
  background: color-mix(in srgb, var(--amber) 13%, transparent);
  color: var(--amber);
}
.pr-review-check-text {
  color: var(--text-2);
}

.pr-review-summary {
  border-radius: 0.5rem;
  border: 1px solid color-mix(in srgb, var(--teal) 19%, transparent);
  padding: 0.75rem;
  font-size: 0.75rem;
  background: color-mix(in srgb, var(--teal) 3%, transparent);
}
.pr-review-summary-title {
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 0.25rem;
}
.pr-review-summary-text {
  color: var(--text-2);
}

/* ===== How It Works ===== */
.how-header {
  margin-bottom: 5rem;
}
.how-steps-grid {
  display: grid;
  gap: 3rem;
}
@media (min-width: 768px) {
  .how-steps-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }
}
.how-timeline {
  position: relative;
}
.how-line {
  position: absolute;
  left: 1.4375rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.how-step {
  position: relative;
  padding-left: 4rem;
  padding-bottom: 4rem;
}
.how-step:last-child {
  padding-bottom: 0;
}
.how-step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 2.9375rem;
  height: 2.9375rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-3);
  transition: all 0.5s;
}
.how-step.visible .how-step-number {
  background: var(--teal);
  color: var(--bg);
  border-color: var(--teal);
  box-shadow: 0 0 20px color-mix(in srgb, var(--teal) 19%, transparent);
}
.how-step-title {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-2);
  transition: color 0.5s;
}
.how-step.visible .how-step-title {
  color: var(--text);
}
.how-step-desc {
  font-size: 0.875rem;
  margin-top: 0.5rem;
  line-height: 1.6;
  max-width: 28rem;
  color: var(--text-3);
  transition: color 0.5s;
}
.how-step.visible .how-step-desc {
  color: var(--text-2);
}

/* Dashboard sidebar */
.dashboard-card {
  border-radius: 1rem;
  border: 1px solid var(--border);
  padding: 1.5rem;
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 8rem;
}
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}
.dashboard-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
}
.dashboard-live {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: var(--green);
  animation: pulse 2s infinite;
}
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.dashboard-stat {
  border-radius: 0.5rem;
  padding: 0.75rem;
  text-align: center;
  background: var(--surface-2);
}
.dashboard-stat-value {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text);
}
.dashboard-stat-label {
  font-size: 0.625rem;
  margin-top: 0.125rem;
  color: var(--text-3);
}
.dashboard-chart-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-3);
  margin-bottom: 0.5rem;
}
.dashboard-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.375rem;
  height: 5rem;
}
.dashboard-bar {
  flex: 1;
  border-radius: 0.125rem;
  background: var(--border-light);
}
.dashboard-bar.teal {
  background: var(--teal);
}
.dashboard-bar.grow {
  animation: bar-grow 0.5s ease-out forwards;
}
.dashboard-days {
  display: flex;
  justify-content: space-between;
  font-size: 0.625rem;
  font-family: var(--font-mono);
  color: var(--text-3);
  margin-top: 0.5rem;
}

/* ===== Testimonials ===== */
.testimonial {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
@media (min-width: 768px) {
  .testimonial {
    padding: 10rem 0;
  }
}
.testimonial-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
@media (min-width: 768px) {
  .testimonial-container {
    padding: 0 3rem;
  }
}
.testimonial-quote {
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
}
@media (min-width: 768px) {
  .testimonial-quote {
    font-size: 2.25rem;
  }
}
.testimonial-mark {
  font-size: 3.75rem;
  font-family: serif;
  line-height: 1;
  margin-right: 0.5rem;
  vertical-align: middle;
  color: var(--teal);
}
.testimonial-mark-end {
  font-size: 3.75rem;
  font-family: serif;
  line-height: 1;
  margin-left: 0.25rem;
  vertical-align: middle;
  color: var(--teal);
}
.testimonial-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}
.testimonial-avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--teal) 8%, transparent);
  color: var(--teal);
}
.testimonial-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}
.testimonial-role {
  font-size: 0.75rem;
  color: var(--text-3);
}
.testimonial-note {
  margin-top: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-3);
}

/* ===== Pricing ===== */
.pricing-header {
  margin-bottom: 4rem;
}
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.pricing-card {
  border-radius: 1rem;
  border: 1px solid var(--border);
  padding: 2rem;
  position: relative;
  background: var(--surface);
  transition: box-shadow 0.3s;
}
.pricing-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}
.pricing-card.highlighted {
  background: var(--surface-2);
  border-color: var(--teal);
  box-shadow: 0 0 40px color-mix(in srgb, var(--teal) 6%, transparent);
}
.pricing-badge {
  position: absolute;
  top: -0.75rem;
  left: 2rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-weight: 600;
  background: var(--teal);
  color: var(--bg);
}
.pricing-name {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
}
.pricing-price {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: 1rem;
}
.pricing-period {
  font-size: 0.75rem;
  color: var(--text-3);
  margin-left: 0.5rem;
}
.pricing-desc {
  font-size: 0.875rem;
  margin-top: 0.5rem;
  color: var(--text-2);
}
.pricing-divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.pricing-feature {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: var(--text-2);
}
.pricing-check {
  color: var(--teal);
}
.pricing-cta {
  display: block;
  text-align: center;
  border-radius: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 2rem;
  transition: all 0.2s;
  cursor: pointer;
}
.pricing-cta.primary {
  background: var(--teal);
  color: var(--bg);
  border: 1px solid var(--teal);
}
.pricing-cta.primary:hover {
  background: var(--teal-hover);
}
.pricing-cta.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-light);
}
.pricing-cta.secondary:hover {
  background: var(--surface-2);
  border-color: var(--text-3);
}

/* ===== Final CTA ===== */
.final-cta {
  position: relative;
  overflow: hidden;
  padding: 8rem 0;
  text-align: center;
}
@media (min-width: 768px) {
  .final-cta {
    padding: 11rem 0;
  }
}
.cta-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 50% 60% at 50% 50%,
    color-mix(in srgb, var(--teal) 3%, transparent),
    transparent
  );
  pointer-events: none;
}
.cta-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
}
@media (min-width: 768px) {
  .cta-inner {
    padding: 0 3rem;
  }
}
.cta-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--text);
}
@media (min-width: 768px) {
  .cta-title {
    font-size: 3.75rem;
  }
}
.cta-desc {
  font-size: 1rem;
  margin-top: 1.5rem;
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-2);
}
.cta-buttons {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  justify-content: center;
}
@media (min-width: 640px) {
  .cta-buttons {
    flex-direction: row;
  }
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
}
.cta-btn.primary {
  background: var(--teal);
  color: var(--bg);
}
.cta-btn.primary:hover {
  background: var(--teal-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--teal) 15%, transparent);
}
.cta-btn-icon {
  width: 1rem;
  height: 1rem;
  transition: transform 0.2s;
}
.cta-btn:hover .cta-btn-icon {
  transform: translateX(2px);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    padding: 0 3rem;
  }
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer-brand img {
  height: 1.25rem;
}
.footer-brand span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-3);
}

/* ============================================================ */
/* LOGIN & SIGNUP PAGE STYLES
/* ============================================================ */
.auth-page {
  min-height: 100vh;
  background: var(--bg);
}
.auth-grid {
  display: grid;
  min-height: 100vh;
}
@media (min-width: 1024px) {
  .auth-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.auth-left {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.auth-form {
  width: 100%;
  max-width: 24rem;
}
.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.auth-logo img {
  height: 2rem;
}
.auth-logo span {
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 1.25rem;
  color: var(--text);
}
.auth-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.auth-subtitle {
  font-size: 0.875rem;
  margin-top: 0.5rem;
  color: var(--text-2);
}
.auth-error {
  margin-top: 1rem;
  border-radius: 0.5rem;
  border: 1px solid color-mix(in srgb, var(--red) 25%, transparent);
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  color: var(--red);
  background: color-mix(in srgb, var(--red) 3%, transparent);
}
.auth-fields {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.auth-field {
  display: block;
}
.auth-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-2);
}
.auth-input {
  margin-top: 0.25rem;
  width: 100%;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
  background: var(--surface);
  color: var(--text);
}
.auth-input:focus {
  border-color: var(--teal);
}
.auth-input::placeholder {
  color: var(--text-3);
}
.auth-submit {
  width: 100%;
  border-radius: 0.5rem;
  padding: 0.625rem;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--teal);
  color: var(--bg);
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.auth-submit:hover {
  background: var(--teal-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--teal) 19%, transparent);
}
.auth-submit:disabled {
  opacity: 0.5;
}
.auth-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-3);
}
.auth-link {
  font-weight: 500;
  color: var(--teal);
  cursor: pointer;
  transition: text-decoration 0.2s;
}
.auth-link:hover {
  text-decoration: underline;
}
.auth-back {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
}
.auth-back-link {
  font-size: 0.75rem;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.2s;
}
.auth-back-link:hover {
  color: var(--text);
}

/* Auth left panel (dark) */
.auth-panel {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  position: relative;
  overflow: hidden;
  background: var(--dark-bg);
}
@media (min-width: 1024px) {
  .auth-panel {
    display: flex;
  }
}
.auth-panel-glow {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background: radial-gradient(
    ellipse 60% 50% at 70% 40%,
    color-mix(in srgb, var(--teal) 19%, transparent),
    transparent
  );
  pointer-events: none;
}
.auth-panel-content {
  position: relative;
  max-width: 28rem;
}
.auth-panel-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--teal);
  margin-bottom: 1rem;
}
.auth-panel-title {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--dark-text);
}
.auth-panel-title-light {
  color: var(--dark-text-2);
}

/* Dark cost preview in auth panel */
.dark-cost-card {
  margin-top: 2rem;
  border-radius: 0.75rem;
  border: 1px solid var(--dark-border);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  background: var(--dark-surface);
}
.dark-cost-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--dark-border);
  background: var(--dark-bg);
}
.dark-cost-title {
  font-size: 0.625rem;
  font-family: var(--font-mono);
  margin-left: 0.5rem;
  color: var(--dark-text-3);
}
.dark-cost-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.dark-cost-header-row {
  display: flex;
  font-size: 0.625rem;
  padding-bottom: 0.375rem;
  border-bottom: 1px solid var(--dark-border);
  margin-bottom: 0.25rem;
  color: var(--dark-text-3);
}
.dark-cost-header-row .flex-1 {
  flex: 1;
}
.dark-cost-header-row .w-16 {
  width: 4rem;
  text-align: center;
}
.dark-cost-header-row .w-12 {
  width: 3rem;
  text-align: right;
}
.dark-cost-row {
  display: flex;
  align-items: center;
  font-size: 0.625rem;
  padding: 0.375rem 0.25rem;
  opacity: 0;
}
.dark-cost-row.visible {
  animation: slide-in-right 0.4s ease-out forwards;
}
.dark-cost-row .flex-1 {
  flex: 1;
  font-family: var(--font-mono);
  color: var(--dark-text-2);
}
.dark-cost-row .w-16 {
  width: 4rem;
  text-align: center;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--dark-text);
}
.dark-cost-row .w-12 {
  width: 3rem;
  text-align: right;
  font-family: var(--font-mono);
}
.dark-cost-row .w-12.bad {
  color: var(--red);
}
.dark-cost-row .w-12.good {
  color: var(--green);
}

/* Dark stats grid */
.dark-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.dark-stat {
  border-radius: 0.5rem;
  border: 1px solid var(--dark-border);
  padding: 0.75rem;
  text-align: center;
  background: var(--dark-surface);
  opacity: 0;
}
.dark-stat.visible {
  animation: scale-in 0.3s ease-out forwards;
}
.dark-stat-value {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--teal);
}
.dark-stat-label {
  font-size: 0.625rem;
  margin-top: 0.125rem;
  color: var(--dark-text-3);
}

/* Dark terminal output */
.dark-terminal {
  margin-top: 2rem;
  border-radius: 0.75rem;
  border: 1px solid var(--dark-border);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  background: var(--dark-surface);
}
.dark-terminal-line {
  color: var(--dark-text-3);
}
.dark-terminal-result {
  color: var(--teal);
}
.dark-terminal-result.green {
  color: var(--green);
}

/* Success/API key state */
.success-icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--green) 13%, transparent);
  color: var(--green);
}
.success-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.success-header-text {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text);
}
.api-key-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}
.api-key-desc {
  font-size: 0.875rem;
  margin-top: 0.25rem;
  color: var(--text-3);
}
.api-key-box {
  margin-top: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  padding: 0.625rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  word-break: break-all;
  user-select: all;
  background: var(--surface-2);
  color: var(--text);
}
.api-key-btn {
  margin-top: 1.5rem;
  width: 100%;
  border-radius: 0.5rem;
  padding: 0.625rem;
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--teal);
  color: var(--bg);
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.api-key-btn:hover {
  background: var(--teal-hover);
  transform: translateY(-1px);
}

/* Dark step list */
.dark-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.dark-step {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.dark-step-num {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--teal) 13%, transparent);
  color: var(--teal);
}
.dark-step-text {
  font-size: 0.875rem;
  color: var(--dark-text-2);
}

/* ===== Utility ===== */
.text-center {
  text-align: center;
}
.text-xs {
  font-size: 0.75rem;
}
.text-sm {
  font-size: 0.875rem;
}
.hidden {
  display: none;
}
.loading-spinner {
  display: grid;
  min-height: 100vh;
  place-items: center;
  background: var(--bg);
}
.spinner {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 9999px;
  border: 2px solid var(--teal);
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}