/* ===== Variables ===== */
:root {
  --color-bg: #F7F8FC;
  --color-surface: #ffffff;
  --color-primary: #2E5CE5;
  --color-primary-hover: #1D4ED8;
  --color-text: #1A1F36;
  --color-text-secondary: #697386;
  --color-muted: #94A3B8;
  --color-border: #E2E8F0;

  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: "SF Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 0.875em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2px 8px;
}

/* ===== Nav ===== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav-logo:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.nav-links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.nav-github {
  display: flex;
  align-items: center;
  color: var(--color-text-secondary) !important;
}

.nav-github:hover {
  color: var(--color-text) !important;
  text-decoration: none !important;
}

.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.875rem !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-primary-hover);
  text-decoration: none !important;
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: var(--space-4xl) var(--space-lg) var(--space-2xl);
  max-width: 960px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto var(--space-xl);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.hero-install {
  color: var(--color-muted);
  font-size: 0.875rem;
}

.hero-install code {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ===== Screenshot Showcase ===== */
.screenshot-showcase {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg) var(--space-3xl);
}

.screenshot-showcase img {
  width: 200px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--color-border);
}

.screenshot-showcase img.screenshot-primary {
  width: 260px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

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

.btn-secondary:hover {
  background: var(--color-border);
}

/* ===== Features ===== */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-md);
}

.feature h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.feature-footnote {
  font-size: 0.75rem;
  margin-top: 0.25rem;
  opacity: 0.7;
}

/* ===== How It Works ===== */
.how-it-works {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.how-it-works h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.step p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.step code {
  font-size: 0.8125rem;
}

.access-modes {
  margin: var(--space-sm) 0 0;
  padding-left: var(--space-lg);
  list-style: none;
}

.access-modes li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-xs);
}

.access-modes li::before {
  content: "—";
  margin-right: var(--space-xs);
  color: var(--color-text-tertiary);
}

.how-it-works-cta {
  display: block;
  width: fit-content;
  margin: var(--space-2xl) auto 0;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
}

.how-it-works-cta:hover {
  text-decoration: underline;
}

/* ===== Agents Page ===== */
.agents-page {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-3xl);
}

.agents-page h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.agents-intro {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.agents-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.agent-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.agent-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.agent-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.agent-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.agent-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.agent-card code {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  word-break: break-all;
}

.agent-card a {
  font-size: 0.875rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .agents-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .agents-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
  border-top: 1px solid var(--color-border);
  max-width: 960px;
  margin: var(--space-2xl) auto 0;
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

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

.footer p {
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* ===== Legal Pages ===== */
.legal-page {
  min-height: 100dvh;
  padding: var(--space-xl) var(--space-md);
  display: flex;
  justify-content: center;
}

.legal-content {
  width: 100%;
  max-width: 640px;
}

.legal-content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.legal-updated {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
}

.legal-content h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-content h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.legal-content p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.legal-content ul {
  list-style: disc;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.legal-content ul li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xs);
}

.legal-content a {
  color: var(--color-primary);
}

.legal-content a:hover {
  text-decoration: underline;
}

.legal-content code {
  font-size: 0.8125rem;
}

.legal-back {
  display: inline-block;
  margin-bottom: var(--space-lg);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.legal-back:hover {
  color: var(--color-text);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero {
    padding: var(--space-3xl) var(--space-lg) var(--space-2xl);
  }

  .screenshot-showcase {
    gap: var(--space-md);
    flex-wrap: wrap;
  }

  .screenshot-showcase img {
    width: 160px;
  }

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

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .screenshot-showcase img {
    width: calc(50% - var(--space-md));
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }
}