/* ImproMIX landing page. Brand: E:\Projects\mix-suite\MIX_SUITE.md
   (graphite ground, Unbounded headings, Inter body, JetBrains Mono for
   music, sky blue as the content color). The header is graphite, not the
   suite's navy: decided 2026-10-05 for one consistent ImproMIX look. */

/* Fonts, self-hosted (no requests to Google). Latin + latin-ext for Romanian. */
@font-face { font-family: 'Unbounded'; font-weight: 500 700; font-display: swap; src: url(/fonts/unbounded-latin.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Unbounded'; font-weight: 500 700; font-display: swap; src: url(/fonts/unbounded-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Inter'; font-weight: 400 800; font-display: swap; src: url(/fonts/inter-latin.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Inter'; font-weight: 400 800; font-display: swap; src: url(/fonts/inter-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500 700; font-display: swap; src: url(/fonts/jetbrainsmono-latin.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500 700; font-display: swap; src: url(/fonts/jetbrainsmono-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Montserrat'; font-weight: 900; font-display: swap; src: url(/fonts/montserrat-latin.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Montserrat'; font-weight: 900; font-display: swap; src: url(/fonts/montserrat-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  /* Suite (brand/tokens.css) */
  --mix-navy: #002147;
  --mix-gold: #f5a623;
  --mix-gold-rgb: 245, 166, 35;
  --sm-success: #32cd32;
  --sm-success-rgb: 50, 205, 50;
  --sm-danger: #dc5050;
  --sm-danger-rgb: 220, 80, 80;
  --sm-radius-sm: 8px;
  --sm-radius-md: 12px;
  --sm-radius-lg: 16px;
  --sm-radius-xl: 20px;
  --sm-radius-pill: 999px;

  /* ImproMIX surfaces */
  --bg: #111318;
  --bg-alt: #0d0f13;
  --surface: #1a1d24;
  --surface-2: #16191f;
  --line: #2a2f3a;
  --ink: #edeff3;
  --ink-2: #c9ced8;
  --muted: #a3aab8;
  --sky: #5ab8ff;
  --sky-ink: #0b1020;

  --font-head: 'Unbounded', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--sky); }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.2; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 500; }
p { margin: 0 0 1em; }
.mono { font-family: var(--font-mono); font-weight: 500; }
.muted { color: var(--muted); }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--sky); color: var(--sky-ink); padding: 8px 12px; border-radius: var(--sm-radius-sm); z-index: 10; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 700px) { .wrap { padding: 0 32px; } }
.narrow { max-width: 760px; }

/* Header */
.topbar { background: rgba(22, 25, 31, 0.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.topbar-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; }
.wordmark { position: relative; display: inline-flex; align-items: baseline; padding-bottom: 10px; line-height: 1; }
.wm-impro { font-family: var(--font-head); font-weight: 700; font-size: 21px; color: #fff; }
.wm-mix { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 22px; letter-spacing: 0.02em; color: var(--mix-gold); }
.mix-staff-lines { position: absolute; left: 0; right: 0; bottom: 0; display: flex; flex-direction: column; gap: 3px; }
.mix-staff-lines::before, .mix-staff-lines::after { content: ''; display: block; }
.mix-staff-lines::before { height: 2px; background: linear-gradient(90deg, transparent 0%, var(--mix-gold) 20%, var(--mix-gold) 80%, transparent 100%); }
.mix-staff-lines::after { height: 1px; background: linear-gradient(90deg, transparent 0%, rgba(var(--mix-gold-rgb), 0.5) 25%, rgba(var(--mix-gold-rgb), 0.5) 75%, transparent 100%); }

/* Buttons and form */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0 24px; border: 0; border-radius: var(--sm-radius-md);
  background: var(--sky); color: var(--sky-ink);
  font: 700 16px/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn-small { min-height: 44px; padding: 0 16px; font-size: 15px; }
.notify { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; max-width: 520px; }
.notify input[type="email"] {
  flex: 1 1 240px; min-height: 52px; padding: 0 16px;
  background: var(--surface); color: var(--ink);
  border: 1px solid #4a505e; border-radius: var(--sm-radius-md);
  font: 400 16px var(--font-body);
}
.notify input[type="email"]::placeholder { color: #7c8494; }
.notify input[type="email"]:focus { border-color: var(--sky); outline: none; box-shadow: 0 0 0 3px rgba(90, 184, 255, 0.25); }
.fineprint { flex-basis: 100%; margin: 0; font-size: 14px; color: var(--muted); }
.consent { flex-basis: 100%; display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.5; color: var(--muted); cursor: pointer; text-align: left; }
.consent input { flex-shrink: 0; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--sky); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-msg { flex-basis: 100%; margin: 0; font-size: 15px; font-weight: 600; color: var(--ink); min-height: 0; }
.form-msg:empty { display: none; }
.notify-center { margin-left: auto; margin-right: auto; justify-content: center; }

/* Hero */
.hero {
  padding: 56px 0 72px;
  background:
    radial-gradient(ellipse 60% 70% at 85% 30%, rgba(90, 184, 255, 0.10), transparent 70%),
    repeating-linear-gradient(180deg, transparent 0 28px, rgba(255, 255, 255, 0.03) 28px 29px),
    var(--bg);
}
.hero-grid { display: grid; gap: 48px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); } .hero { padding: 88px 0 104px; } }
.eyebrow, .mono-eyebrow { font-family: var(--font-mono); font-weight: 500; text-transform: uppercase; letter-spacing: 3px; font-size: 12px; color: rgba(var(--mix-gold-rgb), 0.8); margin: 0 0 16px; }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 34em; }
.lead strong { color: var(--ink); }

/* Echo mock */
.mock {
  margin: 0; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--sm-radius-xl); padding: 22px; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}
.mock-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.mock-head .mono-eyebrow { margin: 0; }
.mock-score { font-weight: 700; }
.slots { display: grid; grid-template-columns: 76px repeat(4, minmax(0, 1fr)); gap: 8px; align-items: center; }
.slot-label { font-size: 13px; line-height: 1.3; color: var(--muted); }
.slot {
  height: 84px; border-radius: 14px; background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
}
.slot b { font: 700 clamp(22px, 3.4vw, 30px)/1 var(--font-mono); }
.slot i { font: 500 14px var(--font-mono); font-style: normal; color: var(--sky); }
.slot-focus { border: 2px solid var(--sky); }
.played { height: 60px; border-radius: 14px; display: flex; align-items: center; justify-content: center; gap: 6px; }
.played b { font: 700 20px var(--font-mono); }
.played svg { width: 18px; height: 18px; fill: none; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.played.ok { background: rgba(var(--sm-success-rgb), 0.10); }
.played.ok svg { stroke: var(--sm-success); }
.played.bad { background: rgba(var(--sm-danger-rgb), 0.12); border: 1px solid rgba(var(--sm-danger-rgb), 0.5); }
.played.bad svg { stroke: var(--sm-danger); }
.mock-explain { margin: 16px 0 0; background: var(--bg); border-radius: 14px; padding: 14px 16px; font-size: 15px; line-height: 1.6; color: #d5d9e0; }
.mock-explain .mono { color: #fff; }
.mock-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: var(--sm-radius-md); border: 1px solid #4a505e; font-size: 15px; font-weight: 600; }
.chip-sky { background: var(--sky); border-color: var(--sky); color: var(--sky-ink); }
@media (max-width: 520px) {
  .slots { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .slot-label { grid-column: 1 / -1; margin-top: 4px; }
  .mock { padding: 16px; }
}

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid #1c2029; border-bottom: 1px solid #1c2029; }
.section p { color: var(--ink-2); }
.emph { font-size: 1.15rem; color: var(--ink) !important; font-weight: 500; }

/* Modes */
.modes { display: grid; gap: 16px; margin: 32px 0 24px; }
@media (min-width: 860px) { .modes { grid-template-columns: 1fr 1fr; } .mode-feature { grid-column: 1 / -1; grid-template-columns: 1.1fr 1fr; } }
.mode { background: var(--surface); border: 1px solid var(--line); border-radius: var(--sm-radius-xl); padding: 24px; display: grid; gap: 16px; align-content: start; }
.mode p { margin: 0; }
.mode h3 { margin: 0; }
.mode-feature { border-color: rgba(90, 184, 255, 0.45); align-items: center; }
.mode-text { display: grid; gap: 10px; }
.tag { justify-self: start; font: 500 12px var(--font-mono); letter-spacing: 2px; text-transform: uppercase; color: var(--sky); }
.mode-feature h3 { font-size: 1.6rem; font-weight: 700; }
.mode-visual { background: var(--bg); border-radius: 14px; padding: 18px; }
.steps { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.steps span { font-size: 13px; padding: 6px 12px; border-radius: var(--sm-radius-pill); border: 1px solid var(--line); color: var(--muted); }
.steps .on { border-color: var(--sky); color: var(--ink); }
.bars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bars i { height: 56px; border-radius: 12px; border: 2px dashed #3a404c; }
.bars .done { border: 0; background: rgba(90, 184, 255, 0.18); }
.bars .now { border: 2px solid var(--sky); }
.answer { display: flex; gap: 8px; flex-wrap: wrap; }
.answer span { min-width: 56px; height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 12px; border-radius: var(--sm-radius-md); border: 1px solid #4a505e; font: 700 17px var(--font-mono); }
.answer .sel { background: var(--sky); border-color: var(--sky); color: var(--sky-ink); }
.kb { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); height: 104px; }
.kb i { background: #f4f5f7; border: 1px solid #c9cdd6; border-radius: 0 0 5px 5px; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 6px; font: 700 12px var(--font-mono); font-style: normal; color: var(--sky-ink); }
.kb .k-ok { background: var(--sm-success); border-color: #1f8f1f; }
.kb .k-bad { background: var(--sm-danger); border-color: #a83434; color: #fff; }
.kb .k-hint { background: #e8f3ff; border: 2px dashed #1e6fd9; color: #1e6fd9; }
.kb b { position: absolute; top: 0; width: 5%; height: 62%; background: #1b1e25; border-radius: 0 0 4px 4px; }

/* Confidence */
.split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 860px) { .split { grid-template-columns: 1.1fr 1fr; } }
.progress-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--sm-radius-xl); padding: 24px; }
.progress-card .mono-eyebrow { display: block; }
.progress-card .big { font: 700 3rem/1 var(--font-head); color: var(--ink) !important; margin: 0 0 6px; }
.meter { height: 8px; border-radius: var(--sm-radius-pill); background: var(--line); overflow: hidden; margin: 16px 0; }
.meter span { display: block; height: 100%; background: var(--sky); border-radius: inherit; }
.good { margin: 0; color: var(--ink) !important; font-weight: 500; }

/* Who */
.checks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 36px; color: var(--ink-2); font-size: 1.1rem; }
.checks li::before {
  content: ''; position: absolute; left: 0; top: 4px; width: 22px; height: 22px; border-radius: 999px;
  background: rgba(90, 184, 255, 0.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235AB8FF' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 14px no-repeat;
}

/* FAQ */
.faq { display: grid; gap: 10px; margin-top: 24px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--sm-radius-lg); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 52px 18px 20px; font-weight: 600; position: relative; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font: 500 22px var(--font-mono); color: var(--sky); }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin: 0; padding: 0 20px 18px; }

/* Final CTA */
.cta { background: radial-gradient(ellipse 50% 80% at 50% 100%, rgba(90, 184, 255, 0.12), transparent 70%), var(--bg); }

/* Footer */
.footer { border-top: 1px solid #1c2029; padding: 28px 0; font-size: 14px; color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.footer a { color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 24px; }

/* Simple pages (privacy, confirmed) */
.page { padding: 64px 0 88px; min-height: calc(100vh - 64px - 86px); }
.page h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
.page h2 { font-size: 1.3rem; margin-top: 2em; }
.page p, .page li { color: var(--ink-2); }
.page ul { padding-left: 1.2em; }
.page li { margin-bottom: 0.4em; }
.page .updated { font-size: 14px; color: var(--muted); }
.confirmed { text-align: center; }
.confirmed img { margin: 0 auto 24px; }
.footer a:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }