@import url('/fonts.css');

:root {
  --color-bg: #0a2438;
  --color-bg-alt: #0e2f47;
  --color-surface: #113955;
  --color-surface-border: #1f4d6b;
  --color-text: #f4f8fa;
  --color-text-muted: #9fc0cc;
  --color-accent: #7fd4d9;
  --color-accent-strong: #4fb8bf;
  --color-on-accent: #06222a;

  --font-sans: 'Libre Franklin', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --max-width: 68rem;
  --radius: 0.75rem;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover,
a:focus-visible {
  color: var(--color-accent-strong);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

@media (min-width: 640px) {
  .container {
    padding-inline: var(--space-3);
  }
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: var(--space-1) var(--space-2);
  z-index: 100;
}

.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

/* Header */

.site-header {
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-surface-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  text-decoration: none;
}

.brand-mark {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.brand-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: none;
}

@media (min-width: 640px) {
  .brand-kicker {
    display: inline;
  }
}

.header-cta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid var(--color-surface-border);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  white-space: nowrap;
}

.header-cta:hover,
.header-cta:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Hero */

.hero {
  padding-block: var(--space-5) var(--space-4);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
}

.hero h1 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
  max-width: 20ch;
}

.hero-description {
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 2.4vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 42rem;
  margin: 0;
}

/* Section shell */

.section {
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-surface-border);
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.section-heading h2 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0;
}

.section-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Featured */

.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 720px) {
  .featured-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.featured-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  height: 100%;
}

.featured-card:hover,
.featured-card:focus-visible {
  border-color: var(--color-accent);
}

.featured-card .tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-1);
}

.featured-card h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.125rem;
  line-height: 1.3;
  margin: 0 0 var(--space-1);
  color: var(--color-text);
}

.featured-card p {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Shop / kits CTA */

.shop-panel {
  background: linear-gradient(135deg, var(--color-surface), var(--color-bg-alt));
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

@media (min-width: 720px) {
  .shop-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
  }
}

.shop-copy h2 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.375rem;
  margin: 0 0 var(--space-1);
}

.shop-copy p {
  font-family: var(--font-serif);
  color: var(--color-text-muted);
  margin: 0;
  max-width: 40rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  white-space: nowrap;
  border: none;
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  background: var(--color-accent-strong);
  color: var(--color-on-accent);
}

.button-note {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Archive */

.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-surface-border);
}

.archive-list li {
  border-bottom: 1px solid var(--color-surface-border);
}

.archive-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
}

.archive-list a:hover,
.archive-list a:focus-visible {
  color: var(--color-accent);
}

.archive-list .arrow {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

/* Newsletter */

.newsletter {
  background: var(--color-surface);
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.newsletter h2 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.375rem;
  margin: 0 0 var(--space-1);
}

.newsletter p {
  font-family: var(--font-serif);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-3);
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 32rem;
}

@media (min-width: 560px) {
  .subscribe-form {
    flex-direction: row;
  }
}

.subscribe-form input[type='email'] {
  flex: 1;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-surface-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.subscribe-form input[type='email']:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.subscribe-form button {
  font-family: var(--font-sans);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin-top: var(--space-2);
  min-height: 1.2em;
}

.form-status[data-state='success'] {
  color: var(--color-accent);
}

.form-status[data-state='error'] {
  color: #ff9d9d;
}

/* Footer */

.site-footer {
  padding-block: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-surface-border);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

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

.site-footer p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0;
}

@media (prefers-reduced-motion: no-preference) {
  a,
  .button,
  .featured-card {
    transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
  }
}