/* AddTooltip landing – self-contained styles (no CDN required) */

:root {
  --color-bg: #ffffff;
  --color-bg-muted: #f4f4f5;
  --color-bg-hero: linear-gradient(to bottom, rgba(250, 250, 250, 0.9), #ffffff);
  --color-text: #18181b;
  --color-text-muted: #52525b;
  --color-border: #e4e4e7;
  --color-indigo: #4f46e5;
  --color-indigo-hover: #4338ca;
  --color-indigo-shadow: rgba(79, 70, 229, 0.25);
  --color-indigo-border: rgba(99, 102, 241, 0.3);
  --radius: 0.75rem;
  --radius-full: 9999px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container: min(1280px, 100% - 3rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.landing-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
}

.landing-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.landing-logo {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--color-text);
  text-decoration: none;
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.landing-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

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

.landing-btn-signin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  background: var(--color-text);
  border: none;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.landing-btn-signin:hover {
  background: #27272a;
}

/* Hero */
.landing-hero {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-hero);
  padding: 7rem 1.5rem 9rem;
}

@media (min-width: 640px) {
  .landing-hero {
    padding: 9rem 1.5rem 9rem;
  }
}

.landing-hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
}

.landing-hero-title {
  max-width: 48rem;
  margin: 0 auto;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--color-text);
}

@media (min-width: 640px) {
  .landing-hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 768px) {
  .landing-hero-title {
    font-size: 3.75rem;
  }
}

.landing-hero-desc {
  max-width: 42rem;
  margin: 1.5rem auto 0;
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-text-muted);
}

.landing-hero-cta {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .landing-hero-cta {
    flex-direction: row;
    justify-content: center;
  }
}

.landing-btn-primary {
  display: inline-flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-indigo);
  border: none;
  border-radius: var(--radius-full);
  text-decoration: none;
  box-shadow: 0 10px 15px -3px var(--color-indigo-shadow);
  cursor: pointer;
  transition: background 0.15s;
}

@media (min-width: 640px) {
  .landing-btn-primary {
    width: auto;
  }
}

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

.landing-btn-secondary {
  display: inline-flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

@media (min-width: 640px) {
  .landing-btn-secondary {
    width: auto;
  }
}

.landing-btn-secondary:hover {
  background: var(--color-bg-muted);
}

/* Section common */
.landing-section {
  scroll-margin-top: 5rem;
  border-bottom: 1px solid var(--color-border);
  padding: 6rem 1.5rem;
}

@media (min-width: 640px) {
  .landing-section {
    padding: 8rem 1.5rem;
  }
}

.landing-section-inner {
  max-width: var(--container);
  margin: 0 auto;
}

.landing-section-header {
  max-width: 42rem;
  margin: 0 auto;
  text-align: center;
}

.landing-section-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text);
}

@media (min-width: 640px) {
  .landing-section-title {
    font-size: 2.25rem;
  }
}

.landing-section-desc {
  margin-top: 1rem;
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* How it works */
.landing-features {
  background: rgba(244, 244, 245, 0.5);
}

.landing-features-grid {
  margin-top: 4rem;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .landing-features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.landing-feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
  text-align: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.15s;
}

.landing-feature-card:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.landing-feature-num {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-indigo);
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px var(--color-indigo-shadow);
}

.landing-feature-card h3 {
  margin: 1rem 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.landing-feature-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.landing-features-note {
  max-width: 42rem;
  margin: 3rem auto 0;
  padding: 1.5rem;
  text-align: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.landing-features-note p {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.landing-features-note p + p {
  margin-top: 0.25rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

/* Pricing */
.landing-pricing-grid {
  margin-top: 4rem;
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  display: grid;
  gap: 2rem;
}

@media (min-width: 640px) {
  .landing-pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.landing-price-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.15s;
}

.landing-price-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.landing-price-card.pro {
  border-width: 2px;
  border-color: var(--color-indigo-border);
  box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.1);
}

.landing-price-card.pro:hover {
  box-shadow: 0 20px 25px -5px rgba(79, 70, 229, 0.15);
}

.landing-price-body {
  flex: 1;
  padding: 1.5rem;
}

.landing-price-card h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.landing-price-card .subtitle {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.landing-price-card .amount {
  margin-top: 1rem;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--color-text);
}

.landing-price-card .amount span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.landing-price-card ul {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.landing-price-card li {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.landing-price-card li:first-child {
  margin-top: 0;
}

.landing-price-cta {
  padding: 1.5rem 1.5rem 0;
}

.landing-price-cta .landing-btn-primary,
.landing-price-cta .landing-btn-primary button {
  width: 100%;
}

.landing-price-cta form {
  width: 100%;
}

.landing-price-cta button[type="submit"] {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-indigo);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background 0.15s;
}

.landing-price-cta button[type="submit"]:hover {
  background: var(--color-indigo-hover);
}

/* Footer */
.landing-footer {
  border-top: 1px solid var(--color-border);
  background: rgba(244, 244, 245, 0.3);
  padding: 3rem 1.5rem;
}

.landing-footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .landing-footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

.landing-footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.landing-footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

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