/* ============================================================================
   Tango Mode for Mixxx - landing page
   Art direction: a midnight milonga. Deep evening-blue ground, RED as the single
   passion accent (actions, the "Tango" wordmark, the diamond spark, the yes-marks),
   BLUE as the cool structure (links, labels, secondary actions, ambient glow), and
   moonlight-silver text.
   Display face: Playfair Display / Cormorant (wordmark). Body + labels: Inter.
   Signature: hairline frames + a red diamond divider + a faint groove halo.
   ========================================================================== */

:root {
  --ink:      #090d18;   /* midnight, deep blue-black ground */
  --ink-2:    #111730;   /* panels, deep navy               */
  --ink-3:    #19203c;   /* raised / hover                  */
  --line:     #2a3357;   /* steel-blue hairlines            */
  --text:     #e9edfb;   /* moonlight - primary text        */
  --muted:    #97a1c4;   /* slate blue - secondary text     */
  --red:      #e6314e;   /* tango red - passion / action    */
  --red-hi:   #ff516b;   /* bright red - hover              */
  --blue:     #6f9bff;   /* evening azure - links / cool     */
  --blue-hi:  #9bbcff;   /* bright azure                    */
  --on-red:   #fff4f5;   /* text on red actions             */

  --wrap: 1080px;
  --shadow: 0 24px 60px rgba(0,0,0,.6);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1100px 520px at 50% -6%, rgba(230,49,78,.11), transparent 62%),
    radial-gradient(900px 480px at 50% 108%, rgba(111,155,255,.07), transparent 60%),
    var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Type ---------- */
h1, h2, h3 { font-family: "Playfair Display", Georgia, serif; font-weight: 700; margin: 0; }
.display { font-family: "Playfair Display", Georgia, serif; }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-hi); }

code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: .88em;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: .12em .45em;
  color: var(--blue-hi);
}
.muted { color: var(--muted); }

/* ---------- Layout primitives ---------- */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 24px; }

.eyebrow {
  font-family: "Inter", sans-serif;
  text-transform: uppercase;
  letter-spacing: .28em;
  font-size: .72rem;
  font-weight: 600;
  color: var(--blue);
  margin: 0 0 18px;
}

.section-head { max-width: 660px; margin: 0 auto 26px; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); letter-spacing: .01em; }
.section-head p { color: var(--muted); font-size: 1.06rem; margin: 14px auto 0; max-width: 560px; }

/* ---------- Signature: red diamond divider ---------- */
.divider {
  display: flex; align-items: center; justify-content: center; gap: 18px;
  max-width: 520px; margin: 0 auto;
}
.divider::before, .divider::after {
  content: ""; height: 1px; flex: 1;
  background: linear-gradient(90deg, transparent, var(--line));
}
.divider::after { transform: scaleX(-1); }
.diamond {
  width: 12px; height: 12px; flex: none; transform: rotate(45deg);
  background: var(--red);
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 5px var(--line), 0 0 16px rgba(230,49,78,.55);
}

/* ---------- Hairline frame ---------- */
.engraved { position: relative; background: var(--ink-2); border: 1px solid var(--line); }
.engraved::after {
  content: ""; position: absolute; inset: 5px; pointer-events: none;
  border: 1px solid rgba(111,155,255,.16);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: "Inter", sans-serif;
  font-weight: 600; font-size: .82rem;
  text-transform: uppercase; letter-spacing: .12em;
  padding: .95em 1.6em; border-radius: 4px;
  border: 1px solid transparent; cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease, transform .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--red); color: var(--on-red); box-shadow: 0 10px 28px rgba(230,49,78,.28); }
.btn--primary:hover { background: var(--red-hi); color: var(--on-red); }
.btn--ghost { border-color: var(--line); color: var(--blue-hi); }
.btn--ghost:hover { border-color: var(--blue); color: var(--blue-hi); background: rgba(111,155,255,.08); }
.btn--block { display: flex; width: 100%; justify-content: center; }
.btn--lg { padding: 15px 30px; font-size: 1.06rem; }
.btn__play { font-size: .82em; color: var(--red); }
.btn--primary .btn__play { color: var(--on-red); }

/* ---------- Early access ---------- */
.early-cta { text-align: center; margin: 6px auto 8px; }
.early-cta .muted { margin: 16px auto 0; max-width: 520px; font-size: .92rem; }
.installers-disabled { display: none; }

/* ---------- Fork banner ---------- */
.fork-banner {
  display: flex; gap: .55em; justify-content: center; align-items: center;
  text-align: center; padding: 9px 20px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: .86rem; color: var(--muted);
}
.fork-banner strong { color: var(--text); }
.fork-banner__icon { color: var(--red-hi); }
.fork-banner a { white-space: nowrap; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(9,13,24,.82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 13px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: .5em; }
.brand__mark-svg { width: 28px; height: 28px; flex: none; }
.brand__name {
  font-family: "Cormorant Garamond", Georgia, serif; font-weight: 700; letter-spacing: .005em;
  font-size: 1.5rem; line-height: 1; color: var(--text);
}
.brand__name em { font-style: italic; color: var(--red-hi); }
.brand__q { color: var(--red-hi); font-style: italic; }
.brand__sub { font-family: "Cormorant Garamond", Georgia, serif; font-style: italic; font-weight: 600; font-size: .95rem; color: var(--muted); }
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  color: var(--muted); font-size: .78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .14em;
}
.nav__links a:hover { color: var(--blue-hi); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 24px 46px; overflow: hidden; text-align: center; }
/* Faint record grooves + a warm red heart glowing in the blue evening. */
.hero__grooves {
  position: absolute; left: 50%; top: -10px; width: 820px; height: 700px;
  transform: translateX(-50%); pointer-events: none;
  background:
    repeating-radial-gradient(circle at 50% 40%, transparent 0 18px, rgba(111,155,255,.06) 18px 19px),
    radial-gradient(closest-side, rgba(230,49,78,.14), rgba(111,155,255,.05) 52%, transparent 72%);
  -webkit-mask: radial-gradient(circle at 50% 40%, #000 18%, transparent 72%);
          mask: radial-gradient(circle at 50% 40%, #000 18%, transparent 72%);
}
.hero__inner { position: relative; max-width: 780px; margin: 0 auto; }

/* Brand lockup: the squircle mark + "TangoQ" wordmark, sitting above the headline. */
.hero__brand {
  display: inline-flex; align-items: center; gap: 14px; margin: 0 0 22px;
  text-decoration: none;
}
.hero__mark { width: 64px; height: 64px; flex: none; }
.hero__brand-word {
  font-family: "Cormorant Garamond", Georgia, serif; font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 3.4rem); line-height: 1; color: var(--text);
  letter-spacing: .01em;
}
.hero__brand-q { color: var(--red-hi); font-style: italic; }

/* The headline is the star of the hero. */
.hero__headline {
  font-family: "Playfair Display", Georgia, serif; font-weight: 800;
  font-size: clamp(2.4rem, 6.4vw, 4.2rem);
  letter-spacing: .005em; line-height: 1.08; margin: 0 0 .34em; color: var(--text);
}

.hero__tagline {
  font-family: "Cormorant Garamond", Georgia, serif; font-style: italic; font-weight: 600;
  font-size: clamp(1.2rem, 3vw, 1.7rem); color: var(--muted);
  letter-spacing: .01em; line-height: 1.3; margin: 0 auto .9em; max-width: 620px;
}
.hero__lede { font-size: 1.16rem; color: var(--muted); max-width: 600px; margin: 0 auto 32px; }
.hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero__meta {
  margin-top: 26px; color: var(--muted); font-size: .74rem;
  text-transform: uppercase; letter-spacing: .18em; font-weight: 600;
}
.hero__meta b { color: var(--text); font-weight: 600; }

/* ---------- Hero screenshot ---------- */
.shot { padding: 20px 24px 40px; }
.shot__frame { max-width: var(--wrap); margin: 0 auto; padding: 10px; }
.shot__caption {
  display: flex; align-items: center; gap: 10px; justify-content: center;
  padding: 8px 0 12px; color: var(--blue); font-family: "Inter", sans-serif;
  font-size: .72rem; text-transform: uppercase; letter-spacing: .2em; font-weight: 600;
}
.shot__frame img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
.shot figcaption { text-align: center; color: var(--muted); font-size: .9rem; margin-top: 14px; }

/* ---------- Features: liner-notes rows ---------- */
.liner { background: linear-gradient(180deg, transparent, rgba(0,0,0,.22)); }
/* Full-window feature clips: a wide showcase (video on top, caption centred below)
   so every clip is the same size and large enough for its toolbar text to read. */
.liner__rows { max-width: 1250px; margin: 0 auto; }
.liner__row { padding: 44px 0; }
.liner__row + .liner__row { border-top: 1px solid rgba(151,161,196,.16); }
.liner__media { padding: 0; }
.liner__media img,
.liner__media video { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 4px; background: var(--ink-2); }
.liner__text { max-width: 680px; margin: 22px auto 0; text-align: center; }
.liner__no {
  font-family: "Inter", sans-serif; color: var(--blue); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .22em; font-weight: 600; margin-bottom: 12px;
}
.liner__text h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); color: var(--text); letter-spacing: .01em; margin-bottom: .5em; }
.liner__text p { color: var(--muted); margin: 0; }
/* "What to look for" cue - a distinct colour so it reads as a hint, not body copy. */
.liner__text .liner__watch { color: var(--red-hi); font-style: italic; margin-top: 14px; }

/* ---------- Download ---------- */
.dl-grid { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.dl-card { padding: 28px; }
.dl-card h3 {
  font-size: 1.15rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text); margin-bottom: 4px;
}
.dl-card__os { color: var(--blue-hi); }
.dl-card__hash { font-size: .8rem; margin: 14px 0 20px; word-break: break-all; color: var(--muted); }
.callout {
  background: var(--ink); border: 1px solid var(--line);
  border-left: 3px solid var(--red); border-radius: 4px; padding: 14px 18px; font-size: .9rem;
}
.callout summary { cursor: pointer; font-weight: 600; color: var(--text); font-size: .92rem; }
.callout summary::marker { color: var(--red-hi); }
.callout ol { margin: 12px 0 8px; padding-left: 20px; }
.callout li { margin: 6px 0; color: var(--muted); }
.callout li strong { color: var(--text); }
.callout code { display: inline-block; margin-top: 5px; }
.dl-trust { text-align: center; color: var(--muted); margin: 40px auto 0; max-width: 620px; }

/* ---------- Source ---------- */
.split { max-width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; }
.split__text h2 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); letter-spacing: .02em; }
.split__text p { color: var(--muted); }
.split__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.split__aside { padding: 26px; }
.split__aside p { margin: 0; color: var(--muted); font-size: .95rem; }
.split__aside strong { color: var(--blue-hi); font-weight: 700; }

/* ---------- Build / Support ---------- */
.center { text-align: center; }
.support { max-width: 620px; margin: 0 auto; text-align: center; }
.support h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: .02em; }
.support p { color: var(--muted); }
.stack-cta { margin-top: 22px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq__item { border-top: 1px solid var(--line); }
.faq__item:last-child { border-bottom: 1px solid var(--line); }
.faq__item summary {
  list-style: none; cursor: pointer; position: relative;
  padding: 20px 44px 20px 0; color: var(--text); font-weight: 600; font-size: 1.06rem;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--blue-hi); }
.faq__item summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  color: var(--red-hi); font-size: 1.5rem; font-weight: 400; line-height: 1;
}
.faq__item[open] summary::after { content: "\2212"; }
.faq__item p { color: var(--muted); margin: 0 0 22px; max-width: 68ch; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--ink-2); }
.footer__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 44px 24px;
  display: flex; gap: 30px; justify-content: space-between; align-items: flex-start; flex-wrap: wrap;
}
.footer__disclaimer { color: var(--muted); font-size: .86rem; max-width: 640px; margin: 0; }
.footer__disclaimer strong { color: var(--text); font-weight: 700; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { color: var(--muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .14em; font-weight: 600; }
.footer__links a:hover { color: var(--blue-hi); }

/* ---------- Secondary page header ---------- */
.page-head { text-align: center; padding: 60px 24px 4px; }
.page-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: .02em; }
.page-head p { color: var(--muted); max-width: 620px; margin: 16px auto 0; font-size: 1.05rem; }
.legend { display: flex; gap: 26px; justify-content: center; flex-wrap: wrap; margin-top: 26px; color: var(--muted); font-size: .84rem; }
.legend span { display: inline-flex; align-items: center; gap: 8px; }

/* ---------- Comparison table (Plain Mixxx vs Tango Mode) ---------- */
.compare { max-width: 880px; margin: 0 auto; }
.compare table { width: 100%; border-collapse: collapse; }
.compare col.col-tango-bg { background: rgba(111,155,255,.06); }
.compare th, .compare td { padding: 13px 18px; text-align: left; vertical-align: middle; }
.compare thead th {
  font-family: "Inter", sans-serif; text-transform: uppercase; letter-spacing: .14em;
  font-size: .72rem; color: var(--muted); font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.compare thead th.col-mark { text-align: center; width: 132px; }
.compare thead th.col-tango { color: var(--blue-hi); }
.cmp-cat th {
  font-family: "Inter", sans-serif; text-transform: uppercase; letter-spacing: .2em;
  font-size: .72rem; color: var(--blue); font-weight: 700;
  padding-top: 30px; padding-bottom: 6px;
}
.cmp-row td { border-top: 1px solid rgba(151,161,196,.14); }
.cmp-row td.feat { color: var(--text); }
.cmp-row td.mark { text-align: center; }
.mark--yes { color: var(--red); font-size: 1.3rem; line-height: 1; }
.mark--no { color: rgba(151,161,196,.5); font-size: 1.05rem; line-height: 1; }
.mark--basic {
  color: var(--muted); font-size: .66rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .12em;
  border: 1px solid var(--line); border-radius: 20px; padding: 3px 9px;
}
.compare-cta { text-align: center; margin-top: 46px; }

/* Compact teaser variant on the landing page */
.teaser { max-width: 620px; }
.teaser td, .teaser th { padding: 11px 14px; }
.teaser thead th.col-mark { width: 116px; }
.teaser__foot { text-align: center; margin-top: 26px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---------- Scroll reveal (progressive; content visible without JS) ---------- */
html.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
html.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Focus + reduced motion ---------- */
:focus-visible { outline: 2px solid var(--blue-hi); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .liner__row { grid-template-columns: 1fr; gap: 22px; padding: 40px 0; }
  .liner__row:nth-child(even) .liner__media { order: 0; }
  .split { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .section { padding: 68px 20px; }
  .nav__links { display: none; }
  .hero__brand { gap: 12px; }
  .hero__mark { width: 48px; height: 48px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { justify-content: center; }
}