/* TapToSpeak Marketing Site — styles.css */

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

:root {
  --color-primary: #1e3a5f;
  --color-primary-light: #2563eb;
  --color-accent: #0d9488;
  --color-accent-hover: #0f766e;
  --color-text: #1f2937;
  --color-text-light: #4b5563;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f0f9ff;
  --color-bg-card: #ffffff;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --max-width: 720px;
  --max-width-wide: 900px;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.container--wide {
  max-width: var(--max-width-wide);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-primary);
}

.site-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.site-logo span {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  gap: 24px;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-text-light);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
}

/* Hero */
.hero {
  padding: 64px 0 48px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero .subtitle {
  font-size: clamp(16px, 2.5vw, 19px);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.cta-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
  cursor: pointer;
  border: none;
}

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

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

.btn--primary:hover {
  background: #162d4a;
}

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

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

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-alt);
}

/* Sections */
.section {
  padding: 48px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

/* Origin Story */
.story {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.story-content {
  max-width: var(--max-width);
  margin: 0 auto;
}

.story-content p {
  font-size: 17px;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.8;
}

.story-content p:last-child {
  margin-bottom: 0;
}

.story-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  border-radius: 10px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
}

.feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--color-bg-alt);
  font-size: 20px;
}

.feature-text h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* Endorsement */
.endorsement {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.endorsement-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.endorsement-card blockquote {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
  margin-bottom: 16px;
}

.endorsement-card cite {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  font-style: normal;
  display: block;
}

.endorsement-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  text-align: center;
}

/* Audience */
.audience-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.audience-list li {
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: 8px;
  font-size: 15px;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.audience-list li::before {
  content: "\2713";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* Legal / Content pages */
.page-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-header .updated {
  font-size: 14px;
  color: var(--color-text-muted);
}

.page-content {
  padding: 32px 0 64px;
}

.page-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 32px 0 12px;
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content p {
  margin-bottom: 16px;
  color: var(--color-text);
  line-height: 1.7;
}

.page-content .highlight {
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 24px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

/* FAQ */
.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.faq-item p a {
  color: var(--color-primary-light);
}

/* Contact card */
.contact-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  margin-bottom: 40px;
}

.contact-card p {
  margin-bottom: 8px;
}

.contact-card a {
  color: var(--color-primary-light);
  font-weight: 600;
  text-decoration: none;
}

.contact-card a:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
}

.site-footer .container {
  max-width: var(--max-width-wide);
}

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-muted);
  text-decoration: none;
}

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

.footer-copy {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-contact {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.footer-contact a {
  color: var(--color-text-muted);
}

/* Responsive */
@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .site-nav {
    gap: 16px;
  }

  .site-nav a {
    font-size: 13px;
  }

  .hero {
    padding: 40px 0 32px;
  }

  .section {
    padding: 36px 0;
  }

  .cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: 4px;
  z-index: 200;
  font-size: 14px;
  text-decoration: none;
}

.skip-link:focus {
  top: 8px;
}