:root {
  --color-bg: #f5f7f2;
  --color-surface: #ffffff;
  --color-border: #d9e2d4;
  --color-primary: #2f855a;
  --color-primary-soft: #e3f2ea;
  --color-accent: #f6ad55;
  --color-text: #1a202c;
  --color-muted: #718096;
  --color-danger: #c53030;
  --color-skeleton: #e2e8f0;

  --space-2: 0.25rem;
  --space-4: 0.5rem;
  --space-6: 0.75rem;
  --space-8: 1rem;
  --space-12: 1.5rem;
  --space-16: 2rem;
  --space-24: 3rem;
  --space-32: 4rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--color-bg);
  color: var(--color-text);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-12);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-8) 0;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.logo span {
  color: var(--color-primary);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  font-size: 0.95rem;
}

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

.site-nav a:hover {
  color: var(--color-primary);
}

/* Sections */

.section {
  padding: var(--space-24) 0;
}

.section-hero {
  background: radial-gradient(circle at top left, #e3f2ea, var(--color-bg));
}

.hero-inner {
  display: grid;
  gap: var(--space-24);
}

.hero-copy h1 {
  font-size: 2.25rem;
  line-height: 1.2;
  margin-bottom: var(--space-8);
}

.hero-kicker {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero-sub {
  max-width: 40rem;
  color: var(--color-muted);
  margin-bottom: var(--space-16);
}

/* Fields & buttons */

.field {
  margin-bottom: var(--space-8);
}

.field-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.field-input {
  width: 100%;
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-soft);
}

.field-help {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-md);
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background-color: #276749;
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Result panel */

.hero-result {
  background-color: var(--color-surface);
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--color-border);
}

.result-panel {
  min-height: 130px;
}

.result-empty {
  color: var(--color-muted);
  margin: 0;
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-12);
  border: 1px solid var(--color-border);
}

.card h3 {
  margin-top: 0;
}

/* Popular plants */

.section-popular .plant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.plant-chip {
  padding: var(--space-4) var(--space-8);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  font-size: 0.95rem;
  cursor: pointer;
}

.plant-chip:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.plant-chip--small {
  font-size: 0.9rem;
  padding: var(--space-4) var(--space-6);
}

/* Browse by type */

.section-types .type-groups {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  margin-top: var(--space-12);
}

.type-group {
  padding: var(--space-8);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.type-group-title {
  margin: 0 0 var(--space-6);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.type-group-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

/* How section */

.section-how .how-grid {
  display: grid;
  gap: var(--space-12);
}

/* Guides */

.section-guides .guide {
  margin-bottom: var(--space-12);
}

/* Signup */

.section-signup {
  background-color: var(--color-primary-soft);
}

.signup-inner {
  display: grid;
  gap: var(--space-16);
  align-items: center;
}

.signup-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* FAQ */

.faq-list {
  display: grid;
  gap: var(--space-8);
}

/* Skeleton loader */

.skeleton-card {
  border-radius: var(--radius-md);
  padding: var(--space-12);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.skeleton-line {
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--color-skeleton),
    #f8fafc,
    var(--color-skeleton)
  );
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  margin-bottom: var(--space-4);
}

.skeleton-line--short {
  width: 40%;
}

.skeleton-line--medium {
  width: 70%;
}

.skeleton-line--long {
  width: 90%;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Alerts */

.alert {
  padding: var(--space-8);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-danger);
  background-color: #fff5f5;
  color: var(--color-danger);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) 0;
  background-color: var(--color-bg);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  font-size: 0.875rem;
}

/* Cookies banner */

.cookie-banner {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  width: min(100% - 2 * var(--space-12), 960px);
  z-index: 50;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.15);
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  display: none; /* default hidden, JS will show if needed */
}

.cookie-banner__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  align-items: flex-start;
}

.cookie-banner__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.cookie-banner__text a {
  color: var(--color-primary);
  font-weight: 500;
}

.cookie-banner__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.cookie-banner__button {
  font-size: 0.9rem;
  padding-inline: var(--space-8);
}

/* Cookie settings panel */

.cookie-settings {
  position: fixed;
  inset: 0;
  z-index: 60;
  background-color: rgba(15, 23, 42, 0.5);
  display: none; /* shown via JS */
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
}

.cookie-settings__card {
  max-width: 520px;
  width: 100%;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.2);
  padding: var(--space-16);
}

.cookie-settings__text {
  margin-top: var(--space-4);
  margin-bottom: var(--space-12);
  font-size: 0.95rem;
  color: var(--color-muted);
}

.cookie-settings__section {
  margin-bottom: var(--space-12);
}

.cookie-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-weight: 500;
}

.cookie-toggle__label {
  font-size: 0.95rem;
}

.cookie-settings__hint {
  margin-top: var(--space-4);
  margin-bottom: 0;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.cookie-settings__actions {
  display: flex;
  gap: var(--space-8);
  justify-content: flex-end;
}

/* Responsive */

@media (min-width: 640px) {
  .cookie-banner__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
  }

  .section-how .how-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .signup-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .signup-form {
    flex-direction: row;
    align-items: flex-end;
  }

  .signup-form .field {
    flex: 1;
    margin-bottom: 0;
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
  }
}