/* ============================================================
   MusicSeed landing page
   Domains: musicseed.org for the landing page and
   docs.musicseed.org for the docs site.
   ============================================================ */

* { box-sizing: border-box; }

:root { --container: 1120px; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: color-mix(in srgb, var(--ms-accent) 35%, transparent); color: #fff; }

a { color: var(--violet); text-decoration: none; }
a:hover { color: var(--pink); }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--ms-focus);
  outline-offset: 3px;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: color-mix(in srgb, var(--ms-accent) 14%, transparent);
  color: #d9c9ff;
  padding: 0.15em 0.4em;
  border-radius: var(--ms-radius-sm);
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 820px; }
.center { text-align: center; margin-top: 36px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ms-accent-gradient); color: var(--ms-accent-foreground); padding: 10px 16px;
  border-radius: 0 0 var(--ms-radius-sm) 0; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 10, 18, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner { display: flex; align-items: center; gap: 24px; height: 68px; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; color: var(--text); }
.brand:hover { color: var(--text); }
.brand__mark { display: inline-flex; }
.brand__name { white-space: nowrap; }

.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav__link {
  display: inline-block; padding: 8px 12px; border-radius: var(--ms-radius-control);
  color: var(--text-soft); font-size: 0.92rem; font-weight: 500;
  transition: color var(--ms-duration-fast) var(--ms-ease), background var(--ms-duration-fast) var(--ms-ease);
}
.nav__link:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.nav__cta { margin-left: 8px; }
.nav__link svg { vertical-align: -2px; margin-right: 6px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; font-weight: 700; font-size: 0.95rem; line-height: 1;
  padding: 10px 22px; border-radius: var(--ms-radius-pill); border: 1px solid transparent;
  cursor: pointer; transition: transform var(--ms-duration-fast) var(--ms-ease), box-shadow var(--ms-duration-fast) var(--ms-ease), background var(--ms-duration-fast) var(--ms-ease), border-color var(--ms-duration-fast) var(--ms-ease);
  white-space: nowrap;
}
.btn--lg { min-height: 52px; padding: 16px 30px; font-size: 1.02rem; }
.btn--primary { background: var(--accent-grad); color: var(--ms-accent-foreground); box-shadow: 0 10px 30px -8px rgba(242, 182, 50, 0.5); }
.btn--primary:hover { color: var(--ms-accent-foreground); transform: translateY(-2px); box-shadow: 0 16px 38px -8px rgba(239, 122, 36, 0.5); }
.btn--ghost { background: rgba(255, 255, 255, 0.04); border-color: var(--border-strong); color: var(--text); }
.btn--ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.3); background: rgba(255, 255, 255, 0.08); transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 120px 0 84px; overflow: hidden; }
.hero__glow {
  position: absolute; inset: -40% -20% auto;
  height: 720px;
  background:
    radial-gradient(48% 55% at 30% 30%, color-mix(in srgb, var(--ms-accent) 32%, transparent), transparent 70%),
    radial-gradient(42% 50% at 72% 34%, color-mix(in srgb, var(--ms-accent-secondary) 24%, transparent), transparent 70%);
  filter: blur(20px);
  pointer-events: none;
}
.hero__inner { position: relative; text-align: center; max-width: var(--container); }
.hero__kicker {
  display: inline-block; margin: 0 0 22px;
  font-size: 0.85rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-dim);
  padding: 7px 16px; border: 1px solid var(--border); border-radius: var(--ms-radius-pill);
  background: rgba(255, 255, 255, 0.03);
}
.hero__title {
  margin: 0 0 24px;
  font-size: clamp(2.6rem, 7.2vw, 5.2rem);
  line-height: 1.04; letter-spacing: -0.035em; font-weight: 850;
}
.hero__accent {
  background: linear-gradient(120deg, var(--ms-accent), var(--ms-accent-secondary));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__sub { margin: 0 auto 36px; max-width: 660px; font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--text-soft); }
.hero__sub strong { color: var(--text); font-weight: 650; }
.hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.hero__meta { margin: 0; font-size: 0.88rem; color: var(--text-dim); }

/* ---------- Strip ---------- */
.strip { padding: 34px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.015); }
.strip__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.strip__item { display: flex; flex-direction: column; gap: 4px; }
.strip__num {
  font-size: 2rem; font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--ms-accent), var(--ms-accent-secondary)); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.strip__label { font-size: 0.88rem; color: var(--text-dim); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section--tint { background: var(--bg-tint); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section__eyebrow {
  margin: 0 0 14px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--violet);
}
.section__title {
  margin: 0 0 20px; font-size: clamp(1.9rem, 4.4vw, 3rem);
  line-height: 1.1; letter-spacing: -0.03em; font-weight: 820;
}
.section__title em { font-style: normal; background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section__lead { margin: 0 0 44px; max-width: 680px; font-size: 1.1rem; color: var(--text-soft); }
.section__closing { margin: 44px 0 0; font-size: 1.15rem; color: var(--text-soft); max-width: 720px; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 8px; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--ms-border); border-radius: var(--ms-radius-panel);
  padding: 26px; transition: transform var(--ms-duration-normal) var(--ms-ease), border-color var(--ms-duration-normal) var(--ms-ease), box-shadow var(--ms-duration-normal) var(--ms-ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: 0 18px 44px -20px color-mix(in srgb, var(--ms-accent) 45%, transparent); }
.card__icon { font-size: 1.6rem; margin-bottom: 14px; }
.card__title { margin: 0 0 10px; font-size: 1.12rem; font-weight: 700; letter-spacing: -0.01em; }
.card__body { margin: 0; color: var(--text-soft); font-size: 0.97rem; }
.card--persona { padding: 30px 26px; }

/* ---------- Band (differentiators) ---------- */
.band {
  margin-top: 44px; padding: 34px 34px;
  background: var(--accent-grad-soft);
  border: 1px solid var(--ms-border-strong); border-radius: var(--ms-radius-lg);
}
.band__title { margin: 0 0 18px; font-size: 1.35rem; font-weight: 750; letter-spacing: -0.02em; }
.band__list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.band__list li { color: var(--text-soft); font-size: 1.02rem; }
.band__list strong { color: var(--text); }
.band__list em { color: var(--text); font-style: normal; font-weight: 600; }

/* ---------- Docs list ---------- */
.doc-list { list-style: none; margin: 0 0 8px; padding: 0; display: grid; gap: 12px; }
.doc-list li { color: var(--text-soft); font-size: 1.04rem; }
.doc-list a { font-weight: 600; }

/* ---------- Install ---------- */
.install { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 28px; }
.install__block { min-width: 0; background: var(--ms-surface); border: 1px solid var(--ms-border); border-radius: var(--ms-radius-panel); padding: 24px; }
.setup-note { margin: 18px 0 0; color: var(--text-soft); font-size: 0.92rem; overflow-wrap: anywhere; }
.install__title { margin: 0 0 6px; font-size: 1.1rem; font-weight: 700; }
.install__note { margin: 0 0 14px; color: var(--text-dim); font-size: 0.92rem; }
.install__next { margin: 0 0 40px; color: var(--text-soft); font-size: 1.04rem; max-width: 820px; }

.concepts__title { margin: 0 0 18px; font-size: 1.35rem; font-weight: 750; letter-spacing: -0.02em; }
.concepts { margin: 0; padding-left: 0; list-style: none; counter-reset: concept; display: grid; gap: 12px; }
.concepts li {
  counter-increment: concept; position: relative;
  padding: 16px 18px 16px 60px;
  background: var(--ms-surface); border: 1px solid var(--ms-border); border-radius: var(--ms-radius-control);
  color: var(--text-soft);
}
.concepts li::before {
  content: counter(concept);
  position: absolute; left: 18px; top: 14px;
  width: 28px; height: 28px; border-radius: var(--ms-radius-pill);
  display: grid; place-items: center;
  background: var(--accent-grad); color: #fff; font-weight: 700; font-size: 0.9rem;
}
.concepts strong { color: var(--text); }

/* ---------- Code blocks ---------- */
.code {
  margin: 0; padding: 18px 20px; border-radius: var(--ms-radius-control); overflow-x: auto;
  background: var(--ms-surface-code); border: 1px solid var(--ms-border);
  font-family: var(--font-mono); font-size: 0.9rem; line-height: 1.7; color: #e8e3f5;
}
.code code { background: none; padding: 0; color: inherit; font-size: inherit; }
.code .c { color: #6f6a86; }

/* ---------- Optional MCP setup ---------- */
.mcp-setup { border: 1px solid var(--ms-border); border-radius: var(--ms-radius-panel); background: var(--ms-surface); }
.mcp-setup__content { padding: 0 24px 24px; }
.mcp-setup__content .install__next { margin-bottom: 0; }

/* ---------- Recipes ---------- */
.recipes { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; }
.recipe { background: var(--ms-surface); border: 1px solid var(--ms-border); border-radius: var(--ms-radius-panel); padding: 26px; }
.recipe__title { margin: 0 0 8px; font-size: 1.2rem; font-weight: 750; letter-spacing: -0.01em; }
.recipe__body { margin: 0 0 16px; color: var(--text-soft); }
.recipe__path { margin: 0 0 14px; font-size: 0.86rem; color: var(--text-dim); }
.recipe__path span { color: var(--violet); font-weight: 650; }
.recipe__steps { margin: 0 0 14px; padding-left: 20px; display: grid; gap: 6px; color: var(--text-soft); }
.recipe__steps li::marker { color: var(--pink); font-weight: 700; }
.recipe__note { margin: 0; font-size: 0.9rem; color: var(--text-dim); border-left: 3px solid var(--border-strong); padding-left: 12px; }

/* ---------- Prose (About) ---------- */
.prose { font-size: 1.06rem; color: var(--text-soft); }
.prose p { margin: 0 0 20px; }
.prose a { font-weight: 600; }
.prose__sub { margin: 32px 0 16px; font-size: 1.3rem; font-weight: 750; color: var(--text); letter-spacing: -0.01em; }
.prose__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.prose__list li { padding-left: 22px; position: relative; }
.prose__list li::before { content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent-grad); }
.prose__list strong { color: var(--text); }
.prose__proud { font-size: 1.14rem; color: var(--text); }
.prose__proud strong { background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq__item {
  background: var(--ms-surface); border: 1px solid var(--ms-border); border-radius: var(--ms-radius-control);
  overflow: hidden;
}
.faq__item[open] { border-color: var(--border-strong); }
.faq__q {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-weight: 650; font-size: 1.03rem; color: var(--text);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: "+"; flex: none; font-size: 1.4rem; font-weight: 400; color: var(--violet);
  transition: transform var(--ms-duration-normal) var(--ms-ease);
}
.faq__item[open] .faq__q::after { transform: rotate(45deg); }
.faq__a { padding: 0 22px 20px; color: var(--text-soft); }
.faq__a p { margin: 0; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 8px; }
.contact-card {
  min-width: 0; overflow-wrap: anywhere;
  display: flex; flex-direction: column; gap: 6px;
  padding: 24px; border: 1px solid var(--ms-border); border-radius: var(--ms-radius-panel);
  background: var(--surface); color: var(--text);
  transition: transform var(--ms-duration-normal) var(--ms-ease), border-color var(--ms-duration-normal) var(--ms-ease);
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--border-strong); color: var(--text); }
.contact-card__label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dim); }
.contact-card__value { font-weight: 700; font-size: 1.05rem; color: var(--text); }
.contact-card__hint { font-size: 0.9rem; color: var(--text-dim); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0 56px; background: var(--bg-tint); }
.site-footer__inner { display: flex; flex-direction: column; gap: 18px; align-items: center; text-align: center; }
.site-footer__brand { margin: 0; font-weight: 800; font-size: 1.1rem; }
.site-footer__nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; }
.site-footer__nav a { color: var(--text-soft); font-weight: 500; }
.site-footer__nav a:hover { color: var(--text); }
.site-footer__legal { margin: 0; color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Responsive ---------- */
@media (max-width: 1120px) {
  .site-header__inner { gap: 12px; }
  .nav__link { padding: 8px 9px; font-size: 0.88rem; }
}

@media (max-width: 920px) {
  .cards, .cards--3 { grid-template-columns: 1fr 1fr; }
  .strip__grid { grid-template-columns: 1fr 1fr; }
  .install { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .hero { padding: 84px 0 60px; }
  .section { padding: 72px 0; }
  .cards, .cards--3, .cards--2 { grid-template-columns: 1fr; }
  .strip__grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .nav__cta { margin-left: auto; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
}

@media (max-width: 380px) {
  .site-header__inner { padding-inline: 16px; gap: 8px; }
  .brand { gap: 6px; font-size: 1rem; }
  .nav__cta { padding-inline: 12px; font-size: 0.82rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}