/* Tunessa website. "Stage & Score" (docs/design_system.md): warm graphite
   Stage, manuscript-beige Score, one signal color (Saffron), Glacier/Rosin
   for flat/sharp. Space Grotesk + JetBrains Mono numerals (coordinator font
   override). Squared "equipment rack" shapes (4-8 px). Self-hosted fonts, no
   third-party requests (CSP default-src 'none'). Logical properties for RTL. */

@font-face { font-family: "Space Grotesk"; src: url("/assets/fonts/space-grotesk.woff") format("woff"); font-weight: 300 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/assets/fonts/jetbrains-mono.woff") format("woff"); font-weight: 100 800; font-display: swap; }

:root {
  --stage: #17140F;
  --stage-low: #1F1B15;
  --stage-high: #2E2820;
  --stage-top: #383128;
  --saffron: #F5B82E;
  --saffron-soft: #FFDF9E;
  --on-saffron: #2A1D00;
  --cream: #F3ECE0;
  --sand: #CFC4B2;
  --rule-dark: #4A4237;
  --glacier: #7CC4F2;
  --rosin: #F27FA0;

  --bg: #F7F1E6;
  --surface: #FFFFFF;
  --surface-2: #F1EADC;
  --surface-3: #E6DDCB;
  --ink: #1F1A12;
  --ink-2: #4D4537;
  --outline: #7F7565;
  --outline-2: #CFC4B2;
  --link: #7A5900;
  --accent-ink: #7A5900;
  --flat: #1F6491;
  --sharp: #A8326E;
  --error: #B3261E;

  --f-ui: "Space Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", "Noto Sans Hebrew", "Noto Sans Thai", "Noto Sans Devanagari", "Noto Sans Bengali", "Noto Sans Tamil", "Noto Sans Telugu", sans-serif;
  --f-num: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --r-xs: 4px;
  --r-s: 8px;
  --r-m: 12px;
  --wrap: 1120px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17140F;
    --surface: #1F1B15;
    --surface-2: #25201A;
    --surface-3: #2E2820;
    --ink: #F3ECE0;
    --ink-2: #CFC4B2;
    --outline: #9C907E;
    --outline-2: #4A4237;
    --link: #F5B82E;
    --accent-ink: #F5B82E;
    --flat: #7CC4F2;
    --sharp: #F27FA0;
    --error: #FFB4A6;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--f-ui); }
img, svg { max-width: 100%; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--saffron); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--f-ui); font-weight: 650; line-height: 1.12; margin: 0 0 .5em; letter-spacing: -.015em; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.25rem); }
h3 { font-size: 1.18rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }
.center { text-align: center; }
.small { font-size: .875rem; color: var(--ink-2); }
.mt { margin-top: 40px; }

.skip { position: absolute; inset-inline-start: -9999px; top: 0; background: var(--saffron); color: var(--stage); padding: 8px 16px; z-index: 10; }
.skip:focus { inset-inline-start: 8px; top: 8px; }

/* ---------------------------------------------------------------- top bar */
.topbar { background: var(--stage); color: var(--cream); position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--rule-dark); }
.topbar .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--cream); text-decoration: none; font: 700 1.3rem/1 var(--f-ui); letter-spacing: -.01em; }
.brand img { border-radius: 6px; }
.topnav { margin-inline-start: auto; display: flex; gap: 2px; flex-wrap: wrap; }
.topnav a { color: var(--sand); text-decoration: none; padding: 8px 12px; border-radius: var(--r-xs); font-size: .95rem; font-weight: 500; border-bottom: 2px solid transparent; }
.topnav a:hover, .topnav a[aria-current] { color: var(--cream); border-bottom-color: var(--saffron); }
@media (max-width: 640px) { .topnav .opt { display: none; } .topnav a { padding: 8px 8px; } }

/* ---------------------------------------------------------------- hero */
.hero { position: relative; background: var(--stage); color: var(--cream); padding: 64px 0 96px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { color: #FFFFFF; }
.eyebrow { display: inline-block; font: 500 .82rem/1.2 var(--f-num); letter-spacing: .02em; color: var(--saffron); border-inline-start: 3px solid var(--saffron); padding: 4px 12px; margin-bottom: 20px; }
.lead { font-size: 1.12rem; color: var(--sand); max-width: 38em; }
.lead strong { color: var(--cream); }
.cta-row { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: 28px; }
.badge img { display: block; width: 200px; height: auto; }
.text-link { color: var(--saffron); font-weight: 600; }
.badge-note { font-size: .85rem; color: #A99E8C; margin-top: 10px; }
/* Cents ribbon along the bottom of the hero: flat ticks, the closed bracket, sharp ticks. */
.ribbon { position: absolute; inset-inline: 0; bottom: 22px; height: 26px; direction: ltr;
  background:
    linear-gradient(90deg, transparent calc(50% - 3px), var(--saffron) calc(50% - 3px) calc(50% + 3px), transparent calc(50% + 3px)),
    repeating-linear-gradient(90deg, var(--rule-dark) 0 2px, transparent 2px 14px); }
.ribbon::before, .ribbon::after { content: ""; position: absolute; top: -6px; bottom: -6px; width: 12px; border: 4px solid var(--saffron); }
.ribbon::before { left: calc(50% - 22px); border-right: 0; }
.ribbon::after { right: calc(50% - 22px); border-left: 0; }

.hero-art { display: block; width: 100%; max-width: 400px; margin-inline: auto; }
[dir="rtl"] .hero-art { direction: ltr; }
.hero-art text { font-family: var(--f-ui); }
.hero-art .card { fill: var(--stage-high); stroke: var(--rule-dark); }
.hero-art .card.dim { fill: var(--stage-low); }
.hero-art .h-label { font-size: 16px; font-weight: 500; fill: var(--sand); }
.hero-art .h-note { font-size: 120px; font-weight: 700; fill: var(--cream); text-anchor: middle; }
.hero-art .h-oct { font-size: 34px; font-weight: 600; fill: var(--sand); }
.hero-art .h-cents { font: 600 22px var(--f-num); fill: var(--saffron); }
.hero-art .h-hz { font: 500 18px var(--f-num); fill: var(--sand); text-anchor: end; }
.hero-art .tick { stroke: var(--rule-dark); stroke-width: 2; }
.hero-art .tick.major { stroke: var(--sand); }
.hero-art .bracket { fill: none; stroke: var(--saffron); stroke-width: 4; }
.hero-art .needle { stroke: var(--saffron); stroke-width: 4; stroke-linecap: round; }
.hero-art .h-state { font-size: 14px; font-weight: 600; fill: var(--saffron); text-anchor: middle; }
.hero-art .m-bpm { font: 600 40px var(--f-num); fill: var(--cream); }
.hero-art .m-meter { font: 600 22px var(--f-num); fill: var(--sand); text-anchor: end; }
.hero-art .pip { fill: var(--sand); }
.hero-art .pip.now { fill: var(--saffron); }
.hero-art .m-group { font: 500 15px var(--f-num); fill: #A99E8C; }

/* ---------------------------------------------------------------- bands */
.band { padding: 80px 0; }
.band.tint { background: var(--surface-2); }
.band.dark { background: var(--stage); color: var(--cream); }
.band.dark .sec-lead, .band.dark .note { color: var(--sand); }
@media (prefers-color-scheme: dark) { .band.dark { background: #0F0D0A; border-block: 1px solid var(--rule-dark); } }
.band.dark a { color: var(--saffron); }
.sec-head { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.sec-head h2 { margin: 0; }
.sec-lead { font-size: 1.08rem; color: var(--ink-2); max-width: 46em; margin-bottom: 28px; }
.note { font-size: .95rem; color: var(--ink-2); margin-top: 16px; }

/* Section counter in a closed tuning bracket. */
.cnt { position: relative; display: inline-block; flex: none; padding: 2px 14px; font: 600 1.35rem/1.5 var(--f-num); color: var(--accent-ink); direction: ltr; }
.cnt::before, .cnt::after { content: ""; position: absolute; top: 0; bottom: 0; width: 7px; border: 3px solid var(--accent-ink); }
.cnt::before { left: 0; border-right: 0; }
.cnt::after { right: 0; border-left: 0; }

.icon { display: inline-flex; width: 44px; height: 44px; flex: none; align-items: center; justify-content: center; border-radius: var(--r-xs); background: var(--stage); }
.icon svg { width: 24px; height: 24px; fill: none; stroke: var(--saffron); stroke-width: 1.75; stroke-linecap: square; stroke-linejoin: miter; }
.band.dark .icon { background: var(--saffron); }
.band.dark .icon svg { stroke: var(--stage); }
@media (prefers-color-scheme: dark) { .icon { background: var(--stage-top); } }

/* Promises. */
.promises { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 32px; }
.promises li { display: flex; gap: 18px; align-items: flex-start; padding: 18px 0; border-top: 1px solid var(--outline-2); }
.promises h3 { margin: 8px 0 4px; }
.promises p { margin: 0; color: var(--ink-2); }

/* Microphone lifecycle. */
.mic-art { background: var(--stage-low); border: 1px solid var(--rule-dark); border-radius: var(--r-s); padding: 16px 20px; margin-bottom: 28px; }
.micline { display: block; width: 100%; max-width: 760px; margin: 0 auto; }
[dir="rtl"] .micline { direction: ltr; }
.micline text { font: 600 16px var(--f-ui); fill: var(--cream); text-anchor: middle; }
.micline .m-track { stroke: var(--rule-dark); stroke-width: 6; stroke-dasharray: 2 10; }
.micline .m-on { stroke: var(--saffron); stroke-width: 10; }
.micline .m-step rect { fill: var(--stage-high); stroke: var(--saffron); stroke-width: 3; }
.micline .m-on-l { fill: var(--saffron); font-family: var(--f-num); font-size: 15px; }
.micline .m-off-l { fill: var(--sand); font-family: var(--f-num); font-size: 15px; }

/* Instruments. */
.chips { list-style: none; margin: 0 0 28px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { border: 1px solid var(--outline-2); background: var(--surface); border-radius: var(--r-xs); padding: 6px 12px; font-size: .95rem; }
.micro-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px; }
.micro-list li { padding-inline-start: 22px; position: relative; color: var(--ink-2); }
.micro-list li::before { content: ""; position: absolute; inset-inline-start: 0; top: .5em; width: 4px; height: 14px; background: var(--saffron); }
.micro-list strong { color: var(--ink); }

/* Features. */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat { background: var(--surface); border-radius: var(--r-s); padding: 22px; border: 1px solid var(--outline-2); }
.feat h3 { display: flex; align-items: center; gap: 12px; }
.dash { list-style: none; margin: 0; padding: 0; }
.dash li { position: relative; padding-inline-start: 20px; margin: 6px 0; color: var(--ink-2); }
.dash li::before { content: ""; position: absolute; inset-inline-start: 0; top: .78em; width: 10px; height: 2px; background: var(--outline); }
.band.dark .dash li { color: var(--sand); }
.band.dark .dash li::before { background: var(--saffron); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel { background: var(--stage-low); border: 1px solid var(--rule-dark); border-radius: var(--r-s); padding: 24px; }
.stack { display: grid; gap: 16px; align-content: start; }

/* Pro. */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: start; padding: 10px 12px; border-bottom: 1px solid var(--outline-2); vertical-align: top; }
thead th { font: 600 .9rem var(--f-ui); color: var(--ink-2); border-bottom: 2px solid var(--ink); }
.compare td { text-align: center; width: 104px; }
.compare tbody th { font-weight: 400; }
.cell-t { font: 600 .95rem var(--f-num); }
.mark { display: inline-block; width: 22px; height: 22px; border-radius: 3px; vertical-align: middle; position: relative; }
.mark.yes { background: var(--stage); }
.mark.yes::after { content: ""; position: absolute; left: 7px; top: 3px; width: 6px; height: 11px; border: solid var(--saffron); border-width: 0 2.5px 2.5px 0; transform: rotate(45deg); }
.mark.no { border: 2px solid var(--outline-2); }
.mark.no::after { content: ""; position: absolute; left: 4px; right: 4px; top: 8px; height: 2px; background: var(--outline); }
@media (prefers-color-scheme: dark) { .mark.yes { background: var(--saffron); } .mark.yes::after { border-color: var(--stage); } }
.plans { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.plans li { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; background: var(--surface); border: 1px solid var(--outline-2); border-radius: var(--r-s); padding: 18px 20px; }
.plans li:first-child { border: 2px solid var(--accent-ink); }
.plans strong { font: 650 1.25rem var(--f-ui); grid-column: 2; }
.plans span:not(.plan-tag) { grid-column: 2; color: var(--ink-2); }
.plan-tag { grid-row: 1 / span 2; align-self: center; background: var(--saffron); color: var(--on-saffron); border-radius: var(--r-xs); padding: 4px 10px; font: 600 .78rem var(--f-num); white-space: nowrap; }
.plans li + li .plan-tag { background: var(--surface-3); color: var(--ink); }
.callout { background: var(--surface); border-radius: var(--r-s); padding: 22px; border-inline-start: 6px solid var(--outline); }
.callout.lifetime { background: var(--saffron-soft); color: var(--on-saffron); border-inline-start-color: var(--saffron); }
.callout.lifetime a { color: var(--on-saffron); }
.callout p { margin: 0; }

/* FAQ. */
.faq-list { display: grid; gap: 10px; }
.faq { background: var(--surface); border-radius: var(--r-s); border: 1px solid var(--outline-2); }
.faq summary { cursor: pointer; padding: 16px 20px; font-weight: 600; list-style: none; display: flex; gap: 12px; align-items: baseline; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: ""; flex: none; width: 10px; height: 10px; border: solid var(--ink-2); border-width: 0 2px 2px 0; transform: rotate(-45deg); transition: transform .15s; }
[dir="rtl"] .faq summary::before { transform: rotate(135deg); }
.faq[open] summary::before { transform: rotate(45deg); }
.faq p { padding: 0 20px 18px 42px; margin: 0; color: var(--ink-2); }
[dir="rtl"] .faq p { padding: 0 42px 18px 20px; }
.faq:target { outline: 3px solid var(--saffron); }

.final { background: var(--stage); color: var(--cream); border-top: 4px solid var(--saffron); }
.final .sec-lead { color: var(--sand); margin-inline: auto; }
.final .badge { display: inline-block; }

/* ---------------------------------------------------------------- legal + support pages */
.page { padding: 48px 0 72px; }
.doc { max-width: 820px; margin: 0 auto; }
.doc h1 { font-size: clamp(2rem, 4.4vw, 2.8rem); padding-bottom: 14px; border-bottom: 3px solid var(--saffron); }
.doc h2 { font-size: 1.45rem; margin-top: 2em; padding-top: 8px; scroll-margin-top: 80px; }
.doc h3 { margin-top: 1.5em; scroll-margin-top: 80px; }
.doc ul, .doc ol { padding-inline-start: 1.4em; }
.doc li { margin: .35em 0; }
.doc table { margin: 1em 0 1.5em; font-size: .92rem; }
.doc td, .doc th { border: 1px solid var(--outline-2); }
.doc thead th { background: var(--surface-2); border-bottom: 2px solid var(--ink); }
.doc code { font: .88em var(--f-num); background: var(--surface-2); padding: 1px 5px; border-radius: 3px; }
.meta { color: var(--ink-2); font-size: .95rem; font-family: var(--f-num); }
.fallback { max-width: 820px; margin: 0 auto 24px; background: var(--saffron-soft); color: var(--on-saffron); padding: 12px 16px; border-radius: var(--r-xs); }
.toc { background: var(--surface-2); border-radius: var(--r-s); padding: 14px 20px; margin: 0 0 28px; border-inline-start: 4px solid var(--saffron); }
.toc summary { cursor: pointer; font-weight: 600; }
.toc ol { margin: 10px 0 0; columns: 2; column-gap: 28px; }
.toc li { break-inside: avoid; font-size: .95rem; }
.button { display: inline-block; background: var(--stage); color: var(--cream); text-decoration: none; padding: 13px 26px; border-radius: var(--r-s); font-weight: 600; }
.button:hover { background: var(--stage-high); }
@media (prefers-color-scheme: dark) { .button { background: var(--saffron); color: var(--on-saffron); } .button:hover { background: #FFCB52; } }

/* ---------------------------------------------------------------- footer */
.foot { background: #110F0B; color: var(--sand); padding: 48px 0 40px; border-top: 1px solid var(--rule-dark); }
.foot a { color: var(--cream); }
.foot .small { color: #A99E8C; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
.foot-brand { font: 700 1.45rem var(--f-ui); color: var(--cream); margin-bottom: 8px; }
.foot-links { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 8px; }
.langs summary { cursor: pointer; color: var(--cream); }
.langs ul { list-style: none; padding: 0; margin: 12px 0 0; columns: 2; column-gap: 20px; font-size: .9rem; }
.langs li { margin: 4px 0; }
.langs a[aria-current] { color: var(--saffron); }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .feat-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .band { padding: 56px 0; }
  .hero { padding: 40px 0 84px; }
  .promises, .feat-grid, .split, .micro-list, .foot-grid { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
  .compare td { width: 72px; }
}
@media print {
  .topbar, .foot, .skip, .toc { display: none; }
  body { background: #FFFFFF; color: #000000; }
}