/* Rubi Infusion Audio — store
   Layout: one dark studio room; each product keeps the colour of its own plugin
   (Aura amethyst, Morph blue, Sense ruby) on the brand's ruby-on-black ground. */
:root {
  --bg: #0d0a10;          /* studio black, slightly plum */
  --bg-2: #141017;        /* raised surfaces */
  --bg-3: #1c1621;        /* hover / chips */
  --line: rgba(244, 239, 247, 0.09);
  --fg: #f4eff7;
  --fg-2: #c9bfd4;
  --fg-3: #8f849c;
  --ruby: #e3254a;        /* brand */
  --ruby-hi: #ff6b84;
  --aura: #8b5cf6;
  --morph: #38bdf8;
  --sense: #ff4f7e;
  --ok: #4ade80;
  --accent: var(--ruby);

  --display: "Syncopate", "Arial Black", "Helvetica Neue", sans-serif;
  --body: "Questrial", "Avenir Next", "Segoe UI", system-ui, sans-serif;

  --step--1: clamp(0.82rem, 0.8rem + 0.1vw, 0.88rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --step-3: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);
  --step-4: clamp(3rem, 2rem + 5.5vw, 6.4rem);

  --wrap: 1180px;
  --radius: 14px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--ruby-hi); }
:focus-visible { outline: 2px solid var(--ruby-hi); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { text-wrap: balance; margin: 0; }
p { margin: 0; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.eyebrow { font-size: var(--step--1); letter-spacing: 0.16em; text-transform: uppercase; color: var(--fg-2); }
.display { font-family: var(--display); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1; }
.muted { color: var(--fg-2); }
.faint { color: var(--fg-3); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20;
  background: rgba(13, 10, 16, 0.9);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand span { font-family: var(--display); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.22em; white-space: nowrap; }
.nav { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 28px); font-size: 0.97rem; color: var(--fg-2); }
.nav a[aria-current="page"] { color: var(--fg); }
@media (max-width: 720px) {
  .site-header .wrap { flex-wrap: wrap; gap: 6px 16px; padding-block: 12px; min-height: 0; }
  .brand span { font-size: 0.72rem; letter-spacing: 0.18em; }
  .nav { width: 100%; justify-content: space-between; font-size: 0.95rem; }
  .nav .hide-sm { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 0 26px; border-radius: 999px;
  font: inherit; font-size: 1rem; cursor: pointer; white-space: nowrap;
  border: 1px solid transparent; transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-buy { background: var(--accent); color: #fff; }
.btn-buy:hover { color: #fff; filter: brightness(1.1); }
.btn-line { border-color: rgba(244, 239, 247, 0.22); color: var(--fg); }
.btn-line:hover { border-color: var(--fg); color: var(--fg); }
.btn-small { min-height: 42px; padding: 0 18px; font-size: 0.93rem; }
.btn[aria-disabled="true"] { background: var(--bg-3); color: var(--fg-3); cursor: default; filter: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* ---------- home hero ---------- */
.hero { padding-block: clamp(48px, 8vw, 96px) clamp(40px, 6vw, 72px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 64px); align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.hero h1 { font-size: var(--step-4); }
.hero .lead { font-size: var(--step-1); color: var(--fg-2); max-width: 32ch; line-height: 1.45; }
.hero .formats { font-size: var(--step--1); color: var(--fg-3); }
.shot { position: relative; min-width: 0; }
.shot::before {
  content: ""; position: absolute; inset: 10% 8%; border-radius: 50%;
  background: var(--glow, var(--aura)); filter: blur(80px); opacity: 0.32;
}
.shot img { position: relative; border-radius: var(--radius); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6); width: 100%; }
@media (max-width: 880px) { .hero .wrap { grid-template-columns: 1fr; } }

/* price */
.price { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.price strong { font-family: var(--display); font-size: var(--step-2); letter-spacing: 0.04em; }
.price s { color: var(--fg-3); }
.tag { display: inline-block; padding: 4px 12px; border-radius: 999px; background: rgba(227, 37, 74, 0.16); color: var(--ruby-hi); font-size: var(--step--1); letter-spacing: 0.04em; }

/* ---------- strip ---------- */
.strip { border-block: 1px solid var(--line); }
.strip .wrap { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; padding-block: 26px; }
.strip b { display: block; font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.08em; }
.strip span { color: var(--fg-3); font-size: 0.93rem; }
@media (max-width: 760px) { .strip .wrap { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- sections ---------- */
.section { padding-block: clamp(56px, 8vw, 96px); }
.section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: clamp(28px, 4vw, 44px); }
.section-head h2 { font-family: var(--display); font-size: var(--step-2); letter-spacing: 0.1em; text-transform: uppercase; }

/* product cards */
.products { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
@media (max-width: 980px) { .products { grid-template-columns: 1fr; max-width: 640px; } }
.product {
  --c: var(--aura);
  display: flex; flex-direction: column; background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
}
.product.morph { --c: var(--morph); }
.product.sense { --c: var(--sense); }
.product .pic { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: #08060a; border-bottom: 2px solid var(--c); }
.product .pic img { width: 100%; height: 100%; object-fit: cover; object-position: center top; transition: transform 0.4s; }
.product:hover .pic img { transform: scale(1.03); }
.product .body { display: flex; flex-direction: column; gap: 12px; padding: 22px 22px 24px; flex: 1; }
.product .kind { color: var(--c); font-size: var(--step--1); letter-spacing: 0.16em; text-transform: uppercase; }
.product h3 { font-family: var(--display); font-size: 1.25rem; letter-spacing: 0.1em; }
.product p { color: var(--fg-2); font-size: 0.97rem; }
.product .foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 8px; flex-wrap: wrap; }
.product .foot .price strong { font-size: 1.35rem; }

/* templates */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 980px) { .cards { grid-template-columns: 1fr; max-width: 640px; } }
.card { background: var(--bg-2); border: 1px solid var(--line); border-radius: 18px; padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-size: 1.15rem; }
.card p { color: var(--fg-2); font-size: 0.96rem; }
.card .row { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 8px; }
.soon { font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-3); border: 1px dashed rgba(244, 239, 247, 0.22); border-radius: 999px; padding: 6px 12px; }

/* trust row */
.trust { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 860px) { .trust { grid-template-columns: 1fr; } }
.trust div { padding: 24px; border-top: 1px solid var(--line); }
.trust h3 { font-size: 1.08rem; margin-bottom: 6px; }
.trust p { color: var(--fg-2); font-size: 0.96rem; }

/* ---------- product page ---------- */
.p-hero { padding-block: clamp(28px, 5vw, 56px) clamp(40px, 6vw, 72px); }
.p-hero .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 56px); align-items: start; }
@media (max-width: 920px) { .p-hero .wrap { grid-template-columns: 1fr; } }
.crumbs { font-size: var(--step--1); color: var(--fg-3); margin-bottom: 18px; }
.crumbs a { color: var(--fg-2); }
.p-info { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.p-info h1 { font-size: var(--step-3); }
.p-info .lead { font-size: var(--step-1); color: var(--fg-2); line-height: 1.45; }
.ticks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; color: var(--fg-2); font-size: 0.97rem; }
.ticks li { display: flex; gap: 10px; align-items: baseline; }
.ticks li::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg) translateY(-1px); background: var(--accent); }
.views { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.views button { font: inherit; font-size: 0.93rem; min-height: 40px; padding: 0 16px; border-radius: 999px; cursor: pointer; background: transparent; color: var(--fg-2); border: 1px solid rgba(244, 239, 247, 0.18); }
.views button[aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

.modules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
@media (max-width: 900px) { .modules { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .modules { grid-template-columns: 1fr; } }
.module { padding: 26px 24px 28px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.module .step { font-family: var(--display); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--accent); }
.module h3 { font-size: 1.12rem; }
.module p { color: var(--fg-2); font-size: 0.96rem; max-width: 40ch; }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 22px; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.panel { border: 1px solid var(--line); border-radius: 18px; padding: clamp(22px, 3vw, 30px); display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.panel h2 { font-family: var(--display); font-size: 0.95rem; letter-spacing: 0.14em; text-transform: uppercase; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { padding: 7px 13px; border-radius: 999px; background: var(--bg-3); font-size: 0.9rem; color: var(--fg-2); }
dl.macros { margin: 0; display: grid; grid-template-columns: minmax(90px, auto) 1fr; gap: 10px 18px; }
dl.macros dt { color: var(--accent); font-family: var(--display); font-size: 0.78rem; letter-spacing: 0.12em; padding-top: 3px; }
dl.macros dd { margin: 0; color: var(--fg-2); }

.faq { display: flex; flex-direction: column; gap: 10px; max-width: 820px; }
.faq details { background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 22px; display: flex; justify-content: space-between; gap: 16px; font-size: 1.03rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ruby-hi); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { padding: 0 22px 18px; color: var(--fg-2); }

.buybar { border-block: 1px solid var(--line); background: var(--bg-2); }
.buybar .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding-block: 26px; }
.buybar h2 { font-family: var(--display); font-size: var(--step-1); letter-spacing: 0.1em; }

/* ---------- text pages ---------- */
.doc { max-width: 820px; }
.doc h1 { font-family: var(--display); font-size: var(--step-2); letter-spacing: 0.1em; margin-bottom: 20px; }
.doc h2 { font-size: 1.18rem; margin: 30px 0 8px; }
.doc p, .doc li { color: var(--fg-2); }
.doc ul { padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 26px; }
.tabs a { min-height: 42px; display: inline-flex; align-items: center; padding: 0 16px; border-radius: 999px; border: 1px solid rgba(244, 239, 247, 0.18); font-size: 0.93rem; color: var(--fg-2); }
.tabs a[aria-current="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.contact-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: 18px; padding: 24px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.contact-box code { font-family: var(--body); font-size: 1.1rem; color: var(--fg); user-select: all; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: clamp(40px, 6vw, 72px); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px 28px; padding-block: 34px; font-size: 0.92rem; color: var(--fg-3); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.site-footer nav a { color: var(--fg-2); }