:root {
  --color-primary: #2f8f63;
  --color-primary-dark: #234f3b;
  --color-secondary: #35678a;
  --color-bg: #faf6ef;
  --color-surface: #ffffff;
  --color-text: #2a2a25;
  --color-text-light: #ffffff;
  --color-text-muted: #5f5b52;
  --color-border: #e4dfd3;
  --color-success-bg: #e6f4ea;
  --color-success-text: #1e5631;
  --color-error-bg: #fbeaea;
  --color-error-text: #ff1818;

  --radius: 10px;
  --shadow: 0 1px 3px rgba(42, 42, 37, 0.08), 0 1px 2px rgba(42, 42, 37, 0.06);
  --font-sans:
    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

body {
  position: relative;
  min-height: 100vh;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a {
  color: var(--color-secondary);
}

a:hover {
  color: var(--color-primary-dark);
}

/* Header */

.site-header {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.5rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.brand {
  font-size: 1.4rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.brand:hover {
  color: var(--color-primary-dark);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav .greeting {
  color: var(--color-text-muted);
}

/* Layout */

.container {
  position: relative;
  max-width: 100vw;
  margin: 6vh auto 1vh;
}

/* Decorative masonry background (home page) */

.container:has(.hero-masonry) {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

body:has(.hero-masonry) footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
}

.hero-masonry {
  position: absolute;
  inset: 0;
  overflow: hidden;
  columns: 6 260px;
  column-gap: 8px;
  z-index: 0;
  pointer-events: none;
  top: 2.2rem;
  width: 108vw;
  left: -4vw;
  height: 108vh;
}

@media (max-width: 768px) {
  .hero-masonry {
    columns: 4 160px;
  }
}

@media (max-width: 480px) {
  .hero-masonry {
    columns: 3 90px;
  }
}

.hero-masonry img {
  width: 100%;
  display: block;
  margin-bottom: 8px;
  border-radius: 8px;
  break-inside: avoid;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background-color: var(--color-bg);
  opacity: 0.85;
  z-index: 1;
  pointer-events: none;
}

.card {
  position: relative;
  z-index: 2;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  max-width: 420px;
  margin: 0 auto;
}

.card.signup ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin: 0.5rem 0;
  color: var(--color-text-muted);
}

.card.signup ul li {
  font-size: 0.875rem;
}

.card h1 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.card h1.signed-in {
  font-size: 1.6rem;
}

.card h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.card > .basic-info-links li {
  margin: 0.5rem 0;
}

.card > p {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  padding: 2rem 1.5rem;
}

/* Buttons */

.btn {
  display: inline-block;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  background-color: var(--color-primary);
  color: #fff;
  transition: background-color 0.15s ease;
}

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

.btn-link {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-secondary);
  padding: 0.6rem 0;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}

.btn-link:hover {
  background: none;
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Forms */

form p {
  margin: 0 0 1.1rem;
}

form label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  font-size: 0.9rem;
}

form input,
form select,
form textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

form input:focus,
form select:focus,
form textarea:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 1px;
}

form .helptext {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.825rem;
  color: var(--color-text-muted);
}

.errorlist,
.card.signup ul.errorlist {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  color: var(--color-error-text);
  font-size: 0.875rem;
}

/* Messages */

.messages {
  list-style: none;
  margin: 0 auto 1.5rem;
  padding: 0;
  max-width: 36rem;
}

.messages li {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  background-color: var(--color-success-bg);
  color: var(--color-success-text);
}

.messages li.error {
  background-color: var(--color-error-bg);
  color: var(--color-error-text);
}