/*
 * Landing page
 *
 * Refined dark theme: lifted charcoal base, layered soft surfaces,
 * a single cyan accent used sparingly. Depth comes from surface
 * layering and spacing, not glow or saturation.
 *
 * Also styles the nav/footer partials and the legal & blog pages.
 */

:root {
  --landing-bg: #111214;
  --landing-surface: #18191c;
  --landing-surface-raised: #1e2024;
  --landing-border: #26282d;
  --landing-border-strong: #34373d;
  --landing-text: #edeef0;
  --landing-text-dim: #a2a7ad;
  --landing-text-faint: #71767d;
  /* Brand accent — single source of truth is --color-accent-cyan in
     app/assets/tailwind/application.css (@theme block) */
  --landing-accent-cyan: var(--color-accent-cyan, #00f5d4);
  --landing-accent-tint: color-mix(in srgb, var(--landing-accent-cyan) 8%, transparent);
}

/* Base */
.landing-page {
  background: var(--landing-bg);
  color: var(--landing-text);
  min-height: 100vh;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  overflow-x: hidden;
}

/* ---------------------------------- Navigation */
.landing-nav {
  padding: 0 2rem;
}

.sticky-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(17, 18, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--landing-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1rem 0;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  text-decoration: none;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.0625rem;
  font-weight: 600;
}

.logo-bracket {
  color: var(--landing-accent-cyan);
}

.logo-text {
  color: var(--landing-text);
  padding: 0 0.25rem;
}

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

.nav-links-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.5rem;
}

.nav-link {
  color: var(--landing-text-dim);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.nav-link-cta {
  display: inline-flex;
  align-items: center;
  background: var(--landing-text);
  color: var(--landing-bg);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.5rem 1.125rem;
  border-radius: 0.5rem;
  transition: background 0.2s ease;
}

.nav-link-cta:hover {
  background: #ffffff;
}

.nav-mobile-cta {
  display: none;
}

/* ---------------------------------- Shared section pieces */
.section-header {
  margin-bottom: 4rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--landing-text-faint);
  margin-bottom: 1.25rem;
}

.label-line {
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--landing-accent-cyan);
}

.section-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--landing-text);
}

/* ---------------------------------- Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--landing-accent-cyan);
  color: #0a0a0a;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 1.75rem;
  border-radius: 0.625rem;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.btn-arrow {
  transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(3px);
}

.btn-primary-large {
  font-size: 1.0625rem;
  padding: 1rem 2.25rem;
}

/* ---------------------------------- Hero */
.hero-section {
  position: relative;
  padding: 9.5rem 2rem 6rem;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 45% at 50% 0%, color-mix(in srgb, var(--landing-accent-cyan) 5%, transparent), transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
  gap: 5rem;
  align-items: center;
}

.hero-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 3.75rem;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--landing-text);
  margin-bottom: 1.75rem;
  animation: riseIn 0.7s ease-out both;
}

.title-accent {
  color: var(--landing-accent-cyan);
}

.hero-description {
  font-size: 1.1875rem;
  line-height: 1.65;
  color: var(--landing-text-dim);
  max-width: 34rem;
  margin-bottom: 2.5rem;
  animation: riseIn 0.7s ease-out 0.08s both;
}

.hero-cta {
  display: flex;
  align-items: center;
  animation: riseIn 0.7s ease-out 0.16s both;
}

/* Hero demo card */
.hero-demo {
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.5);
  animation: riseIn 0.8s ease-out 0.2s both;
}

.hero-demo-bar {
  display: flex;
  align-items: center;
  padding: 0.875rem 1.25rem;
  background: var(--landing-surface-raised);
  border-bottom: 1px solid var(--landing-border);
}

.hero-demo-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--landing-text-faint);
}

.hero-demo-iframe {
  display: block;
  width: 100%;
  height: 540px;
  border: 0;
}

/* ---------------------------------- How it works */
.how-section {
  padding: 7rem 2rem;
  border-top: 1px solid var(--landing-border);
}

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

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.how-step {
  display: flex;
  flex-direction: column;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 1rem;
  padding: 2rem;
}

.step-number {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--landing-accent-cyan);
  margin-bottom: 1.25rem;
}

.step-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--landing-text);
  margin-bottom: 0.75rem;
}

.step-description {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--landing-text-dim);
  margin-bottom: 1.5rem;
}

.step-visual {
  margin-top: auto;
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 0.625rem;
  padding: 1.125rem 1.25rem;
}

.step-code code {
  display: block;
  font-family: ui-monospace, 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--landing-text-dim);
  white-space: pre-wrap;
}

.step-chat {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.chat-q,
.chat-a {
  font-size: 0.8438rem;
  line-height: 1.5;
  padding: 0.5rem 0.875rem;
  border-radius: 0.625rem;
  width: fit-content;
  max-width: 90%;
}

.chat-q {
  background: var(--landing-surface-raised);
  color: var(--landing-text);
  border: 1px solid var(--landing-border);
}

.chat-a {
  background: var(--landing-accent-tint);
  border: 1px solid color-mix(in srgb, var(--landing-accent-cyan) 20%, transparent);
  color: var(--landing-text);
  align-self: flex-end;
}

.chat-check {
  color: var(--landing-accent-cyan);
  margin-left: 0.25rem;
}

.step-analysis {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.analysis-line {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--landing-text);
}

.analysis-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.analysis-tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--landing-accent-cyan);
  background: var(--landing-accent-tint);
  border: 1px solid color-mix(in srgb, var(--landing-accent-cyan) 20%, transparent);
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
}

.step-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.check-line {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8438rem;
  color: var(--landing-text);
}

.check-icon {
  color: var(--landing-accent-cyan);
  font-size: 0.75rem;
}

.step-form-mock {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mock-field {
  display: flex;
  flex-direction: column;
  gap: 0.4375rem;
}

.mock-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--landing-text-dim);
}

.mock-input {
  display: block;
  height: 1.375rem;
  border-bottom: 1px solid var(--landing-border-strong);
}

.mock-submit {
  align-self: flex-end;
  font-size: 0.75rem;
  font-weight: 600;
  color: #0a0a0a;
  background: var(--landing-accent-cyan);
  padding: 0.3125rem 0.875rem;
  border-radius: 0.375rem;
}

/* ---------------------------------- Features */
.features-section {
  padding: 7rem 2rem;
  border-top: 1px solid var(--landing-border);
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 1rem;
  padding: 2.25rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.feature-card:hover {
  border-color: var(--landing-border-strong);
  transform: translateY(-2px);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 0.75rem;
  background: var(--landing-surface-raised);
  border: 1px solid var(--landing-border);
  color: var(--landing-accent-cyan);
  margin-bottom: 1.5rem;
}

.feature-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--landing-text);
  margin-bottom: 0.75rem;
}

.feature-description {
  font-size: 0.9688rem;
  line-height: 1.65;
  color: var(--landing-text-dim);
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.9063rem;
  color: var(--landing-text-dim);
}

.feature-list li::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--landing-accent-cyan);
  flex-shrink: 0;
}

/* ---------------------------------- Pricing */
.pricing-section {
  padding: 7rem 2rem;
  border-top: 1px solid var(--landing-border);
}

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

.pricing-card-wrapper {
  display: flex;
  justify-content: center;
}

.pricing-card {
  position: relative;
  width: 100%;
  max-width: 26rem;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border-strong);
  border-radius: 1.25rem;
  padding: 2.75rem 2.5rem;
  text-align: center;
}

.pricing-badge {
  position: absolute;
  top: -0.8125rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--landing-accent-cyan);
  color: #0a0a0a;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  white-space: nowrap;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin: 1.25rem 0 1rem;
}

.pricing-currency {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--landing-text-dim);
}

.pricing-value {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 4.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--landing-text);
}

.pricing-period {
  font-size: 1rem;
  color: var(--landing-text-faint);
}

.pricing-description {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--landing-text-dim);
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--landing-text-dim);
}

.pricing-features li::before {
  content: '✓';
  color: var(--landing-accent-cyan);
  font-size: 0.8125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  background: var(--landing-accent-cyan);
  color: #0a0a0a;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.9375rem 1.5rem;
  border-radius: 0.625rem;
  transition: filter 0.2s ease;
}

.pricing-cta:hover {
  filter: brightness(1.08);
}

.pricing-cta:hover .btn-arrow {
  transform: translateX(3px);
}

.pricing-note {
  font-size: 0.8125rem;
  color: var(--landing-text-faint);
  margin-top: 1rem;
}

/* ---------------------------------- FAQ */
.faq-section {
  padding: 7rem 2rem;
  border-top: 1px solid var(--landing-border);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: var(--landing-border-strong);
}

.faq-question {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.0313rem;
  font-weight: 500;
  color: var(--landing-text);
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 3rem;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--landing-text-faint);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  transform: translateY(-50%) rotate(45deg);
  color: var(--landing-accent-cyan);
}

.faq-answer {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--landing-text-dim);
  padding: 0 1.5rem 1.375rem;
  animation: fadeIn 0.25s ease-out;
}

/* ---------------------------------- Final CTA */
.cta-section {
  position: relative;
  padding: 8rem 2rem;
  border-top: 1px solid var(--landing-border);
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 60% at 50% 100%, color-mix(in srgb, var(--landing-accent-cyan) 5%, transparent), transparent 70%);
  pointer-events: none;
}

.cta-container {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.cta-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 3rem;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--landing-text);
  margin-bottom: 1.25rem;
}

.cta-description {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--landing-text-dim);
  margin-bottom: 2.5rem;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.cta-note {
  font-size: 0.875rem;
  color: var(--landing-text-faint);
}

/* ---------------------------------- Legal pages */
.legal-section {
  padding: 10rem 2rem 6rem;
  min-height: calc(100vh - 300px);
}

.legal-container {
  max-width: 800px;
  margin: 0 auto;
}

.legal-updated {
  font-size: 0.875rem;
  color: var(--landing-text-dim);
  margin-top: 1rem;
  margin-bottom: 3rem;
}

.legal-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.legal-block h2 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--landing-text);
  margin-bottom: 0.75rem;
}

.legal-block p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--landing-text-dim);
}

.legal-link {
  color: var(--landing-accent-cyan);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.legal-link:hover {
  opacity: 0.8;
}

/* ---------------------------------- Blog empty state */
.blog-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem;
  margin-top: 2rem;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 1rem;
}

.blog-empty-icon {
  color: var(--landing-text-dim);
  margin-bottom: 1.5rem;
}

.blog-empty-title {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--landing-text);
  margin-bottom: 0.5rem;
}

.blog-empty-text {
  font-size: 1rem;
  color: var(--landing-text-dim);
}

/* ---------------------------------- Footer */
.landing-footer {
  background: var(--landing-bg);
  border-top: 1px solid var(--landing-border);
  padding: 4rem 2rem 2rem;
}

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

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--landing-border);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--landing-text-faint);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(8rem, auto));
  gap: 3rem;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-column-title {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--landing-text-faint);
  margin-bottom: 0.25rem;
}

.footer-link {
  font-size: 0.9375rem;
  color: var(--landing-text-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--landing-text-faint);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--landing-text-dim);
}

.footer-badge svg {
  color: var(--landing-accent-cyan);
}

/* ---------------------------------- Animations */
@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .landing-page *,
  .landing-page *::before,
  .landing-page *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------------------------------- Responsive */
@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .hero-demo {
    max-width: 40rem;
  }

  .hero-title {
    font-size: 3.25rem;
  }

  .how-grid {
    grid-template-columns: 1fr;
    max-width: 40rem;
    margin: 0 auto;
  }
}

@media (max-width: 968px) {
  .hero-title {
    font-size: 2.875rem;
  }

  .section-title {
    font-size: 2.25rem;
  }

  .cta-title {
    font-size: 2.5rem;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

@media (max-width: 640px) {
  .landing-nav {
    padding: 0 1.5rem;
  }

  .nav-container {
    display: flex;
    justify-content: space-between;
    padding: 0.875rem 0;
  }

  .nav-links-center,
  .nav-links-right {
    display: none;
  }

  .nav-mobile-cta {
    display: inline-flex;
  }

  .hero-section {
    padding: 7.5rem 1.5rem 4rem;
  }

  .hero-title {
    font-size: 2.375rem;
  }

  .hero-description {
    font-size: 1.0625rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .hero-demo-iframe {
    height: 480px;
  }

  .how-section,
  .features-section,
  .pricing-section,
  .faq-section {
    padding: 4.5rem 1.5rem;
  }

  .cta-section {
    padding: 5.5rem 1.5rem;
  }

  .section-title {
    font-size: 1.9375rem;
  }

  .cta-title {
    font-size: 2.125rem;
  }

  .feature-card,
  .how-step {
    padding: 1.75rem;
  }

  .pricing-card {
    padding: 2.5rem 1.5rem;
  }

  .pricing-value {
    font-size: 4rem;
  }

  .legal-section {
    padding: 8rem 1.5rem 4rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
}