/* ============================================================
   Singium — landing + legal pages.
   Dark, cool aesthetic with an electric-violet accent.
   ============================================================ */

:root {
  --bg:        #0C0C12;
  --surface:   #16161F;
  --surface-2: #1E1E2A;
  --hairline:  rgba(255, 255, 255, 0.08);
  --hairline-strong: rgba(255, 255, 255, 0.14);
  --text:      #F3F2F8;
  --text-2:    #9C9AAC;
  --text-3:    #6B6A7C;

  --violet:      #9D7BFF;   /* primary accent */
  --violet-deep: #7C4DFF;
  --violet-soft: rgba(157, 123, 255, 0.14);

  --maxw: 1120px;
  --pad: 24px;
  --inter: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--inter); line-height: 1.55;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 3px);
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); position: relative; z-index: 2; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--violet); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.05; letter-spacing: -0.025em; }

.eyebrow {
  font-family: var(--mono); font-size: 0.6875rem; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--violet); margin: 0 0 22px;
}
.visually-hidden { position:absolute!important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }

/* Badges */
.badges { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.badge-link { display: inline-block; border-radius: 10px; }
.badge-link:hover { text-decoration: none; }
.badge-link:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }
.badge-link img { height: 54px; width: auto; }

/* ===================== NAV ===================== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12,12,18,0.78); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 16px; }
.nav-left { display: inline-flex; align-items: center; gap: 18px; }
.nav-back {
  font-family: var(--mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-2); white-space: nowrap; transition: color 0.2s ease;
}
.nav-back:hover { color: var(--violet); text-decoration: none; }
.nav-back:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 4px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--text); }
.brand:hover { text-decoration: none; }
.app-icon {
  width: 32px; height: 32px; border-radius: 8px; flex: none;
  background: var(--bg) url('assets/favicon.svg') center / cover no-repeat;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.10);
}
.wordmark { font-weight: 700; font-size: 1.02rem; letter-spacing: 0.04em; }
.nav-meta { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; color: var(--text-3); margin: 0; }
@media (max-width: 720px) { .nav-meta { display: none; } }

/* ===================== HERO ===================== */
.hero {
  padding: 72px 0 80px; border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(circle at 86% 6%, rgba(157,123,255,0.20), transparent 46%),
    radial-gradient(circle at 4% 94%, rgba(124,77,255,0.10), transparent 55%);
}
.hero-grid { display: flex; flex-direction: column; gap: 48px; }
.hero-copy { max-width: 600px; }
.hero h1 {
  font-weight: 900; font-size: clamp(2.4rem, 6.4vw, 4rem); line-height: 0.98;
  letter-spacing: -0.035em; margin: 0 0 26px;
}
.hero h1 .accent { color: var(--violet); }
.hero .lede { font-size: 1.125rem; color: var(--text-2); max-width: 520px; margin: 0 0 26px; }

/* Hero visual — a CSS "auto-tune pitch meter" */
.hero-visual { display: flex; justify-content: center; }
.tuner {
  width: min(330px, 84vw);
  background: linear-gradient(180deg, var(--surface) 0%, #0F0F17 100%);
  border: 1px solid var(--hairline); border-radius: 26px;
  padding: 26px 26px 30px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.5), 0 0 60px rgba(124,77,255,0.12);
}
.tuner-top { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.18em; color: var(--text-2); display: flex; align-items: center; gap: 8px; }
.tuner-top .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--violet); box-shadow: 0 0 10px var(--violet); }
.tuner .note { font-weight: 900; font-size: 4.2rem; line-height: 1; margin: 14px 0 4px; letter-spacing: -0.04em; }
.tuner .note sup { color: var(--violet); font-size: 2rem; vertical-align: super; }
.tuner .intune { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.16em; color: var(--violet); margin-bottom: 20px; }
.tuner .meter { display: flex; align-items: flex-end; gap: 5px; height: 86px; margin-bottom: 22px; }
.tuner .meter span { flex: 1; border-radius: 3px 3px 0 0; background: rgba(157,123,255,0.28); }
.tuner .meter span.on { background: linear-gradient(180deg, var(--violet), var(--violet-deep)); box-shadow: 0 0 14px rgba(157,123,255,0.5); }
.tuner .slider-label { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; color: var(--text-3); margin-bottom: 8px; }
.tuner .track { height: 6px; border-radius: 999px; background: var(--surface-2); position: relative; }
.tuner .track .fill { position: absolute; left: 0; top: 0; bottom: 0; width: 78%; border-radius: 999px; background: linear-gradient(90deg, var(--violet-deep), var(--violet)); }
.tuner .track .knob { position: absolute; left: 78%; top: 50%; transform: translate(-50%,-50%); width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.5); }

/* ===================== PRIVATE-BY-DESIGN BAND ===================== */
.intro { padding: 84px 0; border-bottom: 1px solid var(--hairline); text-align: center; }
.intro p { max-width: 700px; margin: 0 auto; font-size: clamp(1.2rem, 2.5vw, 1.5rem); line-height: 1.5; color: var(--text); font-weight: 500; }
.intro .hl { color: var(--violet); }

/* ===================== FEATURES GRID ===================== */
.features { padding: 80px 0; border-bottom: 1px solid var(--hairline); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; }
.feature-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.fcard { background: var(--surface); border: 1px solid var(--hairline); border-radius: 14px; padding: 26px 24px; }
.fcard .ic { display: inline-flex; color: var(--violet); margin-bottom: 16px; }
.fcard .ic svg { width: 24px; height: 24px; }
.fcard h3 { font-size: 1.05rem; font-weight: 700; margin: 0 0 8px; }
.fcard p { color: var(--text-2); font-size: 0.95rem; margin: 0; line-height: 1.6; }

/* ===================== FINAL CTA ===================== */
.final { padding: 100px 0; text-align: center; border-bottom: 1px solid var(--hairline);
  background: radial-gradient(circle at 50% 35%, rgba(157,123,255,0.20), transparent 60%); }
.final h2 { font-size: clamp(2rem, 5.2vw, 3.25rem); font-weight: 900; max-width: 16ch; margin: 0 auto 14px; }
.final p { color: var(--text-2); margin: 0 0 24px; }
.final .badges { justify-content: center; }

/* ===================== FOOTER ===================== */
.site-footer { padding: 48px 0; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 26px; align-items: start; }
.footer-brand .brand { margin-bottom: 12px; }
.footer-fine, .footer-mid p, .footer-contact .meta {
  font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; color: var(--text-3); margin: 0; line-height: 1.7;
}
.footer-mid { text-transform: uppercase; }
.footer-contact a { color: var(--text-2); font-size: 0.9rem; }
.footer-contact a:hover { color: var(--violet); }
.footer-loc { margin-top: 8px; font-style: italic; }

/* ===================== SCREENSHOT SHOWCASE ===================== */
.shots { padding: 80px 0; border-bottom: 1px solid var(--hairline); }
.shots-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 44px; }
.shots-grid img { width: 100%; border-radius: 20px; border: 1px solid var(--hairline); box-shadow: 0 20px 50px rgba(0,0,0,0.45); }
@media (min-width: 880px) { .shots-grid { grid-template-columns: repeat(4, 1fr); gap: 18px; } }

/* ===================== ALTERNATING FEATURE ROWS (Hostmaster-style) ===================== */
.feature { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center; padding: 56px 0; }
.feature + .feature { border-top: 1px solid var(--hairline); }
.feature-img img { border-radius: 24px; width: auto; max-width: 100%; max-height: 560px; margin: 0 auto; box-shadow: 0 24px 60px rgba(0,0,0,0.5); }
.feature-text .num { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.2em; color: var(--violet); display: block; margin-bottom: 14px; }
.feature-text h2 { font-size: clamp(1.6rem, 3.4vw, 2.1rem); font-weight: 800; margin: 0 0 14px; letter-spacing: -0.02em; }
.feature-text p { color: var(--text-2); font-size: 1.05rem; line-height: 1.65; margin: 0; max-width: 460px; }
@media (min-width: 900px) {
  .feature { grid-template-columns: 1fr 1fr; gap: 64px; }
  .feature.reverse .feature-img { order: 2; }
  .feature.reverse .feature-text { order: 1; }
}


/* ===================== LEGAL / PROSE + SUPPORT ===================== */
.legal { max-width: 760px; padding: 48px 0 80px; }
.legal h1 { font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 900; letter-spacing: -0.03em; color: var(--text); margin: 8px 0 6px; }
.legal .updated { font-family: var(--mono); font-size: 0.78rem; color: var(--text-3); margin: 0 0 8px; }
.legal h2 { font-size: 1.3rem; font-weight: 800; color: var(--text); margin: 40px 0 12px; letter-spacing: -0.01em; }
.legal p, .legal li { font-size: 1.03rem; line-height: 1.7; color: var(--text-2); }
.legal p { margin: 0 0 16px; }
.legal ul, .legal ol { padding-left: 1.3rem; margin: 0 0 18px; }
.legal li { margin-bottom: 10px; }
.legal strong { color: var(--text); font-weight: 700; }
.legal a { color: var(--violet); word-break: break-word; }

.wrap { max-width: 740px; }
.contact-card { background: var(--surface); border: 1px solid var(--hairline); border-radius: 14px; padding: 28px 30px; margin: 36px 0 8px; }
.contact-card h2 { font-size: 1.15rem; font-weight: 700; margin: 0 0 8px; }
.big-link { font-size: 1.4rem; font-weight: 700; color: var(--violet); }
.contact-card .muted { color: var(--text-2); font-size: 0.95rem; margin: 12px 0 0; }
.block { padding: 56px 0; border-top: 1px solid var(--hairline); }
.block h2.sec { font-size: 1.5rem; font-weight: 800; margin: 0 0 8px; }
.block .sec-sub { color: var(--text-2); margin: 0 0 24px; }
details { border-bottom: 1px solid var(--hairline); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; list-style: none; padding: 20px 2px; font-weight: 700; font-size: 1.02rem; color: var(--text); }
summary::-webkit-details-marker { display: none; }
summary:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 4px; }
.chev { flex: none; width: 11px; height: 11px; border-right: 2px solid var(--violet); border-bottom: 2px solid var(--violet); transform: rotate(45deg); transition: transform 0.2s ease; margin-bottom: 3px; }
details[open] .chev { transform: rotate(225deg); margin-bottom: -3px; }
.answer { padding: 0 2px 22px; }
.answer p { margin: 0 0 12px; color: var(--text-2); font-size: 0.97rem; }
.answer p:last-child { margin-bottom: 0; }
.answer a { color: var(--violet); }

/* ===================== RESPONSIVE ===================== */
@media (min-width: 720px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .feature-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 900px) {
  :root { --pad: 32px; }
  .hero { padding: 100px 0 110px; }
  .hero-grid { flex-direction: row; align-items: center; justify-content: space-between; gap: 56px; }
  .hero-copy { flex: 1 1 0; }
  .hero-visual { flex: 0 0 auto; }
  .footer-grid { grid-template-columns: 1fr auto 1fr; align-items: center; }
  .footer-mid { text-align: center; }
  .footer-contact { text-align: right; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}