/* SheerBooks marketing site styles
   Mobile-first. Brand: charcoal #2D3637, gold #FCCD41, white. */

:root {
  --charcoal: #2D3637;
  --gold: #FCCD41;
  --white: #FFFFFF;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--charcoal);
  background: var(--white);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1 0 auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: inherit;
}

/* Header */

.site-header {
  background: var(--charcoal);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.site-header .logo {
  display: inline-flex;
  align-items: center;
  padding: 6px 0;
}

.site-header .logo img {
  height: 32px;
  width: auto;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--gold);
}

.sign-in-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 6px;
}

.sign-in-link:hover,
.sign-in-link:focus {
  border-color: var(--gold);
  color: var(--gold);
}

/* Hero */

.hero {
  background: var(--charcoal);
  color: var(--white);
  text-align: center;
  padding: 40px 0 56px;
}

.hero .logo-full {
  max-width: 320px;
  margin: 0 auto 28px;
}

.hero h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0 0 16px;
}

.hero p {
  font-size: 1.0625rem;
  font-weight: 600;
  max-width: 36em;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.9);
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 32px;
  background: var(--gold);
  color: var(--charcoal);
  font-weight: 700;
  font-size: 1.0625rem;
  text-decoration: none;
  border-radius: 6px;
}

.btn-gold:hover,
.btn-gold:focus {
  background: #e6b82f;
}

/* Features */

.features {
  background: var(--white);
  padding: 48px 0;
}

.features h2 {
  text-align: center;
  font-size: 1.375rem;
  margin: 0 0 32px;
}

.coming-soon {
  text-align: center;
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.feature-card {
  border: 1px solid #E3E6E6;
  border-radius: 8px;
  padding: 20px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  margin: 0 0 8px;
}

.feature-card p {
  margin: 0;
  color: #4A5456;
}

/* Footer */

.site-footer {
  background: var(--charcoal);
  color: var(--white);
  text-align: center;
  padding: 28px 0;
  font-size: 0.9375rem;
}

.site-footer p {
  margin: 0 0 6px;
}

.site-footer p:last-child {
  margin-bottom: 0;
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 0;
  color: var(--gold);
  text-decoration: none;
}

/* Simple charcoal content page (404, contact) */

.simple-page {
  background: var(--charcoal);
  color: var(--white);
  text-align: center;
  padding: 64px 0;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.simple-page h1 {
  font-size: 2rem;
  margin: 0 0 12px;
}

.simple-page p {
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.9);
}

.tel-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 0;
}

/* Tablet and up */

@media (min-width: 640px) {
  .hero {
    padding: 64px 0 80px;
  }

  .hero .logo-full {
    max-width: 420px;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

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

/* Desktop */

@media (min-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .feature-card {
    padding: 20px 16px;
  }
}