/* ============================================================================
   FlowMaster — system-font, screenshot-driven, app-aligned
   ============================================================================ */

/* --- Tokens -------------------------------------------------------------- */
:root {
  --paper:        #F7F4EE;
  --paper-deep:   #EFEAE0;
  --paper-deeper: #E6DFCD;
  --surface:      #FFFFFF;
  --ink:          #0E0E0D;
  --ink-soft:     #2A2825;
  --ink-muted:    #6B6760;
  --ink-faint:    #948F84;
  --rule:         #DAD4C6;
  --rule-soft:    #E6E0D2;

  --brand:        #1F4FE0;
  --brand-deep:   #142F8A;
  --brand-soft:   rgba(31, 79, 224, 0.08);
  --accent-green: #3F8E5C;
  --accent-clay:  #C76F3A;
  --accent-plum:  #6B3A8A;

  --radius-card:    20px;
  --radius-pill:    999px;
  --radius-window:  16px;

  --shadow-soft:    0 1px 0 rgba(14,14,13,0.04), 0 24px 60px -28px rgba(14,14,13,0.18);
  --shadow-lifted:  0 1px 0 rgba(14,14,13,0.06), 0 40px 100px -40px rgba(14,14,13,0.32);
  --shadow-museum:
    0 1px 1px rgba(14,14,13,0.06),
    0 8px 24px -8px rgba(14,14,13,0.10),
    0 60px 120px -40px rgba(14,14,13,0.28),
    0 120px 200px -80px rgba(14,14,13,0.18);

  --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast:   320ms;
  --dur-med:    600ms;
  --dur-long:   900ms;

  /* System stack — matches what the macOS app actually uses (SF Pro). */
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "Helvetica Neue", Helvetica, Arial, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

/* --- Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11", "cv02";
  overflow-x: hidden;
  text-wrap: pretty;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
a { color: inherit; text-decoration: none; }
ol, ul { margin: 0; padding: 0; list-style: none; }

/* Highlight color (replaces editorial italic-emphasis) */
.hl { color: var(--brand); font-weight: inherit; }

/* --- Scroll progress (top hairline) ------------------------------------ */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 60;
  pointer-events: none;
  background: transparent;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--brand);
  transform-origin: left center;
  transform: scaleX(var(--scroll-progress, 0));
  transition: transform 80ms linear;
}

/* --- Grain overlay ------------------------------------------------------- */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: multiply;
}

/* --- Typography helpers -------------------------------------------------- */
.eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 1.4rem;
}
.section-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(40px, 5.5vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.028em;
  color: var(--ink);
  margin: 0 0 1.25rem;
}
.section-sub {
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 600px;
  margin: 0;
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: -0.005em;
  transition:
    transform var(--dur-fast) var(--ease-premium),
    background var(--dur-fast) var(--ease-premium),
    color var(--dur-fast) var(--ease-premium),
    box-shadow var(--dur-fast) var(--ease-premium);
  will-change: transform;
  white-space: nowrap;
}
.btn--primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset, 0 10px 24px -10px rgba(14,14,13,0.45);
}
.btn--primary:hover {
  background: var(--brand);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 14px 32px -10px rgba(31,79,224,0.5);
}
.btn--primary:active { transform: translateY(1px); }
.btn--ghost {
  color: var(--ink);
  padding: 0.85rem 0.4rem;
  border-radius: 0;
  position: relative;
}
.btn--ghost::after {
  content: "";
  position: absolute; left: 0.4rem; right: 0.4rem; bottom: 0.45rem;
  height: 1px; background: var(--ink);
  transform-origin: left center;
  transform: scaleX(0.35);
  transition: transform var(--dur-fast) var(--ease-premium);
}
.btn--ghost:hover::after { transform: scaleX(1); }
.btn--lg { padding: 1.1rem 1.9rem; font-size: 15.5px; }

/* --- Nav ----------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 12px clamp(20px, 4vw, 56px);
  background: rgba(247, 244, 238, 0.7);
  backdrop-filter: saturate(140%) blur(20px);
  -webkit-backdrop-filter: saturate(140%) blur(20px);
  border-bottom: 1px solid transparent;
  transition:
    transform var(--dur-med) var(--ease-premium),
    padding var(--dur-fast) var(--ease-premium),
    background var(--dur-fast) var(--ease-premium),
    border-color var(--dur-fast) var(--ease-premium);
}
.nav.is-scrolled {
  padding: 8px clamp(20px, 4vw, 56px);
  background: rgba(247, 244, 238, 0.88);
  border-bottom-color: var(--rule-soft);
}
.nav.is-hidden { transform: translateY(-110%); }

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}
.nav__logo {
  width: 28px; height: 28px;
  /* Squircle + drop shadow are baked into the AppLogo asset; no CSS treatment. */
}
.nav__brand-word {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.nav__links {
  display: inline-flex;
  gap: 2rem;
  justify-self: center;
}
.nav__links a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 4px 0;
  transition: color var(--dur-fast) var(--ease-premium);
}
.nav__links a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--ink);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 400ms var(--ease-premium);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links a:not(:hover)::after { transform-origin: right center; }

.nav__cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  transition:
    background var(--dur-fast) var(--ease-premium),
    color var(--dur-fast) var(--ease-premium),
    transform var(--dur-fast) var(--ease-premium);
  will-change: transform;
}
.nav__cta:hover { background: var(--ink); color: var(--paper); }
.nav__cta span { font-size: 12px; transform: translateY(-1px); }

/* --- Hero ---------------------------------------------------------------- */
.hero {
  position: relative;
  padding: clamp(140px, 18vh, 200px) clamp(20px, 4vw, 56px) clamp(60px, 10vh, 120px);
  max-width: 1400px;
  margin: 0 auto;
}
.hero__inner {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.hero__title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(48px, 8vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin: 0 auto 1.75rem;
}
.hero__sub {
  font-family: var(--sans);
  font-size: clamp(16.5px, 1.35vw, 19.5px);
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 560px;
  margin: 0 auto 2rem;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1.6rem;
}
.hero__meta {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

/* --- Screenshot frames --------------------------------------------------- */
.shot {
  margin: clamp(60px, 9vh, 120px) auto 0;
  max-width: 1180px;
  padding: 0 clamp(8px, 2vw, 24px);
  text-align: center;
}
.shot__mat {
  background: var(--surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--rule-soft);
  padding: clamp(12px, 2vw, 22px);
  box-shadow: var(--shadow-museum);
  overflow: hidden;
}
.shot__mat img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--rule-soft);
}
.shot--hero .shot__mat {
  transform: perspective(2400px) rotateX(2deg) rotateY(-1deg);
  transform-origin: center top;
  transition: transform var(--dur-med) var(--ease-premium);
}
.shot--hero .shot__mat:hover {
  transform: perspective(2400px) rotateX(0deg) rotateY(0deg) translateY(-4px);
}
.shot--bleed {
  max-width: 1280px;
}
.shot figcaption {
  margin-top: 18px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* --- Dots ---------------------------------------------------------------- */
.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}
.dot--live {
  background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(63, 142, 92, 0.5);
  animation: pulse 2.4s var(--ease-premium) infinite;
}
.dot--breathing {
  background: var(--accent-green);
  animation: breathe 3.6s ease-in-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(63, 142, 92, 0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(63, 142, 92, 0); }
  100% { box-shadow: 0 0 0 0 rgba(63, 142, 92, 0); }
}
@keyframes breathe {
  0%, 100% { opacity: 0.45; transform: scale(0.92); }
  50%      { opacity: 1;    transform: scale(1.08); }
}

/* --- Format strip -------------------------------------------------------- */
.formats {
  padding: clamp(60px, 10vh, 120px) clamp(20px, 4vw, 56px);
  text-align: center;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper);
}
.formats__line {
  font-family: var(--sans);
  font-size: clamp(13px, 1.2vw, 15px);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0;
}
.formats__lead {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  margin-right: 0.8em;
  text-transform: uppercase;
}
.formats__line span { display: inline-block; margin: 0 0.6em; vertical-align: middle; }
.formats__line .bullet {
  color: var(--ink-faint);
  font-weight: 400;
  letter-spacing: 0;
  margin: 0 0.1em;
}

/* Clickable format buttons — preview format in hero figcaption */
.formats__btn {
  display: inline-block;
  vertical-align: middle;
  margin: 0 0.6em;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  background: none;
  border: 0;
  padding: 4px 2px;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  transition: color var(--dur-fast) var(--ease-premium);
}
.formats__btn::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1.5px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-fast) var(--ease-premium);
}
.formats__btn:hover { color: var(--brand); }
.formats__btn:hover::after { transform: scaleX(1); }
.formats__btn.is-active { color: var(--brand); }
.formats__btn.is-active::after { transform: scaleX(1); }
.formats__hint {
  margin: 1.4rem 0 0;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* Beta pill — sits on format names that aren't fully shipped */
.beta {
  display: inline-block;
  vertical-align: 0.4em;
  margin-left: 5px;
  padding: 1px 5px;
  font-family: var(--sans);
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 4px;
  line-height: 1.4;
  top: auto;
}

/* --- Feature spotlights -------------------------------------------------- */
.features {
  padding: clamp(60px, 10vh, 140px) 0;
  display: flex;
  flex-direction: column;
  gap: clamp(80px, 14vh, 180px);
}
.spot {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 80px);
}
.spot--left { direction: rtl; }
.spot--left > * { direction: ltr; }

.spot__copy { max-width: 480px; }
.spot__num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  margin: 0 0 1.8rem;
  text-transform: uppercase;
}
.spot__title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin: 0 0 1.15rem;
}
.spot__body {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0;
  max-width: 440px;
}

/* --- Vignettes (CSS-rendered UI sketches) ------------------------------- */
.vign {
  background: var(--surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--rule-soft);
  padding: clamp(28px, 4vw, 44px);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.vign::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 0%, rgba(31,79,224,0.04), transparent 50%);
  pointer-events: none;
}
.vign__inner { position: relative; width: 100%; }

.vign__eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 8px;
}
.vign--timer .vign__time {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 88px;
  line-height: 1;
  margin: 0 0 18px;
  padding: 0;
  letter-spacing: -0.04em;
  color: var(--ink);
  font-feature-settings: "tnum";
  background: none;
  border: 0;
  display: inline-flex;
  align-items: baseline;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-premium), transform var(--dur-fast) var(--ease-premium);
  text-align: left;
}
.vign--timer .vign__time .vign__time-sep { color: var(--brand); margin: 0 -2px; }
.vign--timer .vign__time:hover { color: var(--brand); }
.vign--timer.is-running .vign__time { color: var(--brand); }
.vign--timer.is-running .vign__time-sep { animation: blink 1s steps(2) infinite; }
.vign--timer.is-zero .vign__time { color: var(--accent-clay); }

.vign__time-state {
  display: inline-block;
  width: 10px; height: 10px;
  margin-left: 14px;
  border-radius: 50%;
  background: var(--ink-faint);
  align-self: center;
  transition: background var(--dur-fast) var(--ease-premium), box-shadow var(--dur-fast) var(--ease-premium);
}
.vign--timer.is-running .vign__time-state {
  background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(63,142,92,0.5);
  animation: pulse 2.4s var(--ease-premium) infinite;
}

.vign__bar {
  height: 4px; width: 100%;
  background: var(--paper-deep);
  border-radius: 999px; overflow: hidden;
  margin-bottom: 18px;
}
.vign__bar span {
  display: block; height: 100%;
  background: linear-gradient(to right, var(--accent-green), var(--brand));
  border-radius: 999px;
  transition: width 400ms var(--ease-premium);
}
.vign__pills { display: flex; gap: 8px; flex-wrap: wrap; }
.vign__pills span,
.vign__pills button {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-soft);
  background: var(--surface);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-premium),
              color var(--dur-fast) var(--ease-premium),
              border-color var(--dur-fast) var(--ease-premium),
              transform var(--dur-fast) var(--ease-premium);
}
.vign__pills button:hover {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
}
.vign__pills button:active { transform: translateY(1px); }
.vign__pills .warn,
.vign__pills button.warn { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.vign__pills button.warn:hover { background: var(--accent-clay); border-color: var(--accent-clay); }

.vign--collab .vign__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.vign__cell {
  position: relative;
  padding: 14px 16px;
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12px;
  background: var(--paper);
  color: var(--ink-soft);
  border: 1px solid var(--rule-soft);
}
.vign__cell--mine {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.vign__cell--theirs {
  border-color: var(--accent-green);
  box-shadow: 0 0 0 3px rgba(63,142,92,0.08);
}
.vign__live {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 0 0 rgba(63,142,92,0.5);
  animation: pulse 2.4s var(--ease-premium) infinite;
}
.vign__cursor {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  color: var(--accent-green);
  letter-spacing: 0.02em;
}

.vign--ai .vign__quote {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 14px;
  min-height: 2.8em;
  transition: opacity 200ms var(--ease-premium);
}
.vign--ai.is-loading .vign__quote { opacity: 0.35; }
.vign--ai .vign__attrrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.vign--ai .vign__attr {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  margin: 0;
  text-transform: uppercase;
}
.vign__cycle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-premium);
}
.vign__cycle svg { transition: transform var(--dur-med) var(--ease-premium); }
.vign__cycle:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.vign__cycle:hover svg { transform: rotate(180deg); }
.vign__cycle:active { transform: translateY(1px); }
.vign--ai.is-loading .vign__cycle svg { animation: spin 600ms linear; }
@keyframes spin { to { transform: rotate(360deg); } }

.vign--fc .vign__claim {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink-soft);
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 2px solid var(--accent-clay);
}
.vign--fc .vign__verdict {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.vign__badge {
  background: var(--accent-clay);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.vign__src {
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-muted);
}
.vign__detail {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}
.vign__detail strong { color: var(--ink); font-weight: 600; }

/* Provenance card — used by spotlight 05 (Trained) */
.vign--provenance .vign__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.prov {
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  position: relative;
}
.prov--alt {
  background: var(--surface);
  border-left: 2px solid var(--brand);
}
.prov__label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 10px;
}
.prov--alt .prov__label { color: var(--brand); }
.prov__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.prov__list li {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.prov__tick {
  display: inline-grid;
  place-items: center;
  width: 16px; height: 16px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--accent-green);
  color: var(--paper);
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
}
.prov--alt .prov__tick { background: var(--brand); }

/* --- Dashboard showcase ------------------------------------------------- */
.showcase {
  padding: clamp(80px, 14vh, 160px) clamp(20px, 4vw, 56px);
  max-width: 1400px;
  margin: 0 auto;
  text-align: center;
}
.showcase__head {
  max-width: 720px;
  margin: 0 auto;
}
.showcase__head .section-sub { margin: 0 auto; }
.showcase .shot { margin-top: clamp(50px, 8vh, 100px); }

/* --- Manifesto (the "by debaters, for debaters" statement) ------------- */
.manifesto {
  padding: clamp(100px, 16vh, 200px) clamp(20px, 6vw, 100px);
  text-align: center;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  position: relative;
}
.manifesto .eyebrow { margin-bottom: 1.8rem; color: var(--ink-faint); }
.manifesto__title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(48px, 7vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin: 0 auto 1.8rem;
  max-width: 12ch;
}
.manifesto__sub {
  font-family: var(--sans);
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 580px;
  margin: 0 auto;
}

/* --- Intel panel --------------------------------------------------------- */
.intel {
  background: var(--paper-deep);
  padding: clamp(80px, 14vh, 160px) clamp(20px, 4vw, 56px);
  position: relative;
}
.intel::before {
  content: "";
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.7 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.04;
  pointer-events: none;
  mix-blend-mode: multiply;
}
.intel__head { max-width: 1280px; margin: 0 auto 60px; position: relative; }
.intel__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}
.intel__card {
  background: var(--surface);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--dur-fast) var(--ease-premium), box-shadow var(--dur-fast) var(--ease-premium);
}
.intel__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lifted); }
.intel__label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-plum);
  margin: 0;
}
.intel__h {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
}
.intel__quote {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 0;
  white-space: pre-wrap;
}
.intel__role { color: var(--accent-plum); font-weight: 600; margin-right: 4px; }
.intel__meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  margin: 0;
  text-transform: uppercase;
}

/* --- Why ----------------------------------------------------------------- */
.why {
  padding: clamp(80px, 14vh, 160px) clamp(20px, 4vw, 56px);
  max-width: 1280px;
  margin: 0 auto;
}
.why__head { margin-bottom: 60px; max-width: 720px; }
.why__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(30px, 4vw, 60px);
}
.why__list li {
  border-top: 1px solid var(--rule);
  padding-top: 26px;
}
.why__num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-clay);
  letter-spacing: 0.14em;
  margin: 0 0 12px;
}
.why__h {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 10px;
}
.why__body {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0;
}

/* --- FAQ ----------------------------------------------------------------- */
.faq {
  padding: clamp(80px, 14vh, 160px) clamp(20px, 4vw, 56px);
  max-width: 980px;
  margin: 0 auto;
}
.faq__head { text-align: center; margin-bottom: 50px; }
.faq__head .section-title { margin: 0 auto 1rem; }
.faq__item { border-top: 1px solid var(--rule); }
.faq__item:last-child { border-bottom: 1px solid var(--rule); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 24px 4px;
  text-align: left;
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.3;
  color: var(--ink);
  letter-spacing: -0.018em;
  transition: color var(--dur-fast) var(--ease-premium);
}
.faq__q:hover { color: var(--brand); }
.faq__sign {
  width: 22px; height: 22px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--dur-med) var(--ease-premium);
}
.faq__sign::before, .faq__sign::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  width: 13px; height: 1.5px;
  background: var(--ink);
  border-radius: 1px;
  transform: translate(-50%, -50%);
  transition: transform var(--dur-med) var(--ease-premium);
}
.faq__sign::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq__item.is-open .faq__sign::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-long) var(--ease-premium);
}
.faq__a p {
  padding: 0 4px 24px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-muted);
  margin: 0;
  max-width: 760px;
}

/* --- Final CTA ----------------------------------------------------------- */
.final {
  padding: clamp(90px, 16vh, 180px) clamp(20px, 4vw, 56px);
  text-align: center;
  background: var(--paper-deep);
  border-top: 1px solid var(--rule-soft);
  position: relative;
  overflow: hidden;
}
.final::after {
  content: "";
  position: absolute; left: 50%; top: 0;
  width: 1200px; height: 1200px;
  transform: translate(-50%, -65%);
  background: radial-gradient(circle at center, rgba(31,79,224,0.07), transparent 60%);
  pointer-events: none;
}
.final > * { position: relative; z-index: 1; }
.final__logo {
  width: 96px; height: 96px;
  margin: 0 auto 28px;
  /* AppLogo asset already includes its own squircle + subtle shadow. */
}
.final__title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(56px, 10vw, 128px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  color: var(--ink);
  margin: 0 0 2.25rem;
}
.final__meta {
  margin-top: 1.4rem;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* --- Footer -------------------------------------------------------------- */
.foot {
  background: var(--paper);
  border-top: 1px solid var(--rule-soft);
  padding: 44px clamp(20px, 4vw, 56px) 32px;
}
.foot__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  row-gap: 14px;
}
.foot__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}
.foot__brand .nav__logo { width: 24px; height: 24px; }
.foot__brand .nav__brand-word { font-size: 15px; }
.foot__links {
  justify-self: center;
  display: inline-flex;
  gap: 1.8rem;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
}
.foot__links a { position: relative; transition: color var(--dur-fast) var(--ease-premium); }
.foot__links a:hover { color: var(--ink); }
.foot__status {
  justify-self: end;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  text-transform: uppercase;
}
.foot__copy {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--rule-soft);
}
.foot__by {
  color: var(--ink-soft);
  font-weight: 600;
  position: relative;
  transition: color var(--dur-fast) var(--ease-premium);
}
.foot__by:hover { color: var(--brand); }

/* --- Reveal animations --------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--dur-long) var(--ease-premium),
    transform var(--dur-long) var(--ease-premium);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: translateY(0); }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 960px) {
  .nav { grid-template-columns: auto auto; justify-content: space-between; }
  .nav__links { display: none; }
  .hero { padding-top: 120px; }
  .vign--timer .vign__time { font-size: 64px; }
  .spot { grid-template-columns: 1fr; gap: 36px; }
  .spot--left { direction: ltr; }
  .spot__vignette { order: 2; }
  .intel__grid { grid-template-columns: 1fr; }
  .why__list { grid-template-columns: 1fr; gap: 12px; }
  .why__list li { padding-top: 22px; }
  .foot__inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
  .foot__links { justify-self: center; flex-wrap: wrap; justify-content: center; }
  .foot__status { justify-self: center; }
}

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .hero { padding-top: 110px; padding-bottom: 50px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { justify-content: center; }
  .shot--hero .shot__mat { transform: none; }
  .formats__line { line-height: 2.4; }
  .formats__line span { display: inline; margin: 0 0.3em; }
  .vign { min-height: 220px; padding: 24px; }
  .intel__card { padding: 26px 22px; }
  .faq__q { padding: 20px 4px; }
  .final__logo { width: 72px; height: 72px; }
}

/* --- Reduced motion ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .shot--hero .shot__mat { transform: none; }
}