/* Natsuki — visual-system tokens */
:root {
  --bg: #F7F4EF;
  --bg-band: #EFEBE3;
  --ink: #1A1A18;
  --ink-muted: #5C5A55;
  --line: #DDD7CC;
  --accent: #2F4A6E;
  --accent-press: #243A57;
  --ok: #2F5D4A;
  --ochre: #B8956C;
  --ochre-soft: #E8D9C4;
  --terra: #C45C4A;
  --terra-press: #A84B3C;
  --shadow-soft: 0 1px 2px rgba(26, 26, 24, 0.05), 0 8px 24px rgba(26, 26, 24, 0.04);
  --white: #FFFFFF;
  --radius: 8px;
  --chip-radius: 999px;
  --shell: 1040px;
  --text: 720px;
  --pad-x: 40px;
  --section-y: 88px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

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

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.text-block {
  max-width: var(--text);
}

/* ——— Nav ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 56px;
  background: color-mix(in srgb, var(--bg) 95%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 24px;
}

.wordmark {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  flex-shrink: 0;
}

.wordmark:hover {
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.nav-drawer {
  display: none;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.2;
  padding: 12px 20px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
  text-decoration: none;
}

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

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

.btn-primary:focus-visible {
  outline-offset: 3px;
}

.text-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--ochre);
  text-decoration: none;
}

.text-link:hover {
  color: color-mix(in srgb, var(--ochre) 75%, var(--ink));
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ——— Hero ——— */
.hero {
  padding-top: 120px;
  padding-bottom: var(--section-y);
}

.hero .shell {
  display: flex;
  justify-content: flex-start;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 300px);
  gap: 48px;
  align-items: start;
}

.hero-copy {
  max-width: var(--text);
}

.hero-media {
  margin-top: 8px;
}

.media-placeholder {
  background: var(--bg-band);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.media-placeholder--hero {
  aspect-ratio: 4 / 5;
  width: 100%;
  box-shadow: var(--shadow-soft);
  min-height: 280px;
}

.media-placeholder--proof {
  height: 140px;
  margin: 0 0 16px;
  border-radius: var(--radius) var(--radius) 0 0;
  border-left: none;
  border-right: none;
  border-top: none;
}

.media-placeholder-caption {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 8px 12px;
}

.media-frame {
  margin: 0;
  background: var(--bg-band);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.media-frame--hero {
  aspect-ratio: 4 / 5;
  width: 100%;
  max-width: 320px;
  min-height: 280px;
  box-shadow: var(--shadow-soft);
}

.media-frame--hero img {
  flex: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.media-frame--proof {
  height: auto;
  min-height: 120px;
  margin: 0 0 16px;
  border-radius: var(--radius) var(--radius) 0 0;
  border-left: none;
  border-right: none;
  border-top: none;
  box-shadow: none;
}

.media-frame--proof img {
  display: block;
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: top center;
}

.media-frame-caption {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 8px 12px;
  background: var(--bg-band);
  border-top: 1px solid var(--line);
  text-align: center;
  line-height: 1.35;
}