@property --c1 { syntax: '<color>'; inherits: true; initial-value: #6f76f5; }
@property --c2 { syntax: '<color>'; inherits: true; initial-value: #8b57f1; }
@property --glow { syntax: '<color>'; inherits: true; initial-value: rgba(112, 112, 244, .42); }

:root {
  --ink: #141947;
  --ink-2: #363d7a;       /* body copy on pale bg: ~8.5:1 */
  --ink-3: #464d8a;       /* muted: ~6.5:1 */
  --accent: #2f3fd6;
  --line: rgba(60, 70, 160, .16);
  --card: rgba(255, 255, 255, .78);
  --card-strong: rgba(255, 255, 255, .92);
  --state-ink: #34399a;
  --radius: 18px;
  --orb: clamp(168px, 17vw, 236px);
  --hdr: 64px;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'DM Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: linear-gradient(180deg, #f2f4fe 0%, #e6eafd 38%, #d6ddfc 72%, #cbd4fb 100%) fixed, #e3e8fd;
  min-height: 100vh;
  overflow-x: hidden;
}
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: #1a28a8; }
:focus-visible { outline: 3px solid #2f3fd6; outline-offset: 3px; border-radius: 8px; }
.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; }
.skip { position: absolute; left: 12px; top: -60px; background: #fff; padding: 8px 14px; border-radius: 10px; z-index: 50; }
.skip:focus { top: 12px; }

/* ---------- header ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  height: calc(var(--hdr) + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) clamp(16px, 3vw, 32px) 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: linear-gradient(180deg, rgba(242, 244, 254, .92), rgba(242, 244, 254, .7));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(60, 70, 160, .08);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 26px; height: 26px; }
.brand-text { font-size: 13px; letter-spacing: .16em; color: var(--ink-3); display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.brand-text strong { color: #1b22a0; font-weight: 700; letter-spacing: .12em; font-size: 15px; }
.brand-dot { color: var(--ink-3); }
.lang { display: flex; background: rgba(255, 255, 255, .6); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang button { border: 0; background: transparent; padding: 6px 12px; min-height: 36px; min-width: 44px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .06em; color: var(--ink-2); cursor: pointer; }
.lang button[aria-pressed="true"] { background: #fff; color: #1b22a0; box-shadow: 0 1px 4px rgba(40, 50, 140, .15); }

/* ---------- layout ---------- */
.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 600px);
  gap: clamp(16px, 3vw, 48px);
  padding: 0 clamp(16px, 3vw, 40px);
  max-width: 1560px; margin: 0 auto;
}
.stage {
  position: sticky; top: var(--hdr);
  height: calc(100vh - var(--hdr));
  min-height: 520px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding-bottom: 88px;
  overflow: clip;
}
.panel { padding: 28px 0 40px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }

/* ---------- orb ---------- */
.orb-wrap { position: relative; width: var(--orb); height: var(--orb); margin-bottom: clamp(40px, 9vh, 96px); }
.halo {
  position: absolute; inset: -70%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow) 0%, rgba(150, 160, 250, .16) 34%, rgba(150, 160, 250, .06) 52%, transparent 68%);
  pointer-events: none;
  transition: --glow .6s ease;
}
.orb {
  --amp: 0;
  position: relative; display: block;
  width: 100%; height: 100%;
  border: 0; padding: 0; border-radius: 50%;
  cursor: pointer;
  background:
    radial-gradient(circle at 34% 30%, rgba(255, 255, 255, .0) 40%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(222deg, var(--c1) 8%, color-mix(in oklab, var(--c1), var(--c2) 45%) 50%, var(--c2) 96%);
  box-shadow:
    0 0 38px 6px var(--glow),
    0 18px 50px -10px rgba(70, 50, 190, .35),
    inset -14px -18px 36px rgba(60, 30, 170, .22),
    inset 10px 12px 30px rgba(255, 255, 255, .10);
  transform: scale(calc(1 + var(--amp) * .05));
  transition: --c1 .6s ease, --c2 .6s ease, --glow .6s ease, transform .12s ease-out;
  -webkit-tap-highlight-color: transparent;
}
.orb::before { /* soft specular highlight, top-left */
  content: ''; position: absolute;
  left: 20%; top: 5%; width: 32%; height: 26%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, .42), rgba(255, 255, 255, .12) 55%, transparent 72%);
  filter: blur(4px);
}
.orb::after { /* ripple ring, used when listening */
  content: ''; position: absolute; inset: -2px; border-radius: 50%;
  border: 2px solid var(--c1); opacity: 0; pointer-events: none;
}
.orb:focus-visible { outline: 3px solid #2f3fd6; outline-offset: 10px; border-radius: 50%; }
.orb:hover { filter: brightness(1.04); }

.stage[data-state="listening"] { --c1: #b05ff1; --c2: #b35cf0; --glow: rgba(179, 92, 240, .5); --state-ink: #7d1aa6; }
.stage[data-state="thinking"] { --c1: #5f86f5; --c2: #7a5cf2; --glow: rgba(95, 130, 245, .45); --state-ink: #23449e; }
.stage[data-state="speaking"] { --c1: #6c7cf7; --c2: #9b56ee; --glow: rgba(140, 100, 245, .5); --state-ink: #4f25a8; }

@media (prefers-reduced-motion: no-preference) {
  .stage[data-state="listening"] .orb::after { animation: ripple 1.6s ease-out infinite; }
  .stage[data-state="listening"] .orb { animation: breathe 2.2s ease-in-out infinite; }
  .stage[data-state="thinking"] .orb { animation: think 1.4s ease-in-out infinite; }
  .stage[data-state="speaking"] .halo { animation: halo 1.1s ease-in-out infinite; }
}
@keyframes ripple { from { transform: scale(1); opacity: .55; } to { transform: scale(1.45); opacity: 0; } }
@keyframes breathe { 50% { transform: scale(1.035); } }
@keyframes think { 50% { transform: scale(.97); filter: brightness(1.08); } }
@keyframes halo { 50% { transform: scale(1.06); opacity: .85; } }

.status {
  margin: 0; font-size: 13px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--state-ink); transition: color .4s ease; min-height: 1.5em; text-align: center;
}
.hint { margin: 10px 0 0; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); text-align: center; max-width: 34ch; }
.try { margin: 8px 0 0; font-size: 13px; line-height: 1.4; color: var(--ink-2); text-align: center; max-width: 36ch; font-style: italic; }

.stage-foot {
  position: absolute; left: 0; right: 0; bottom: 20px;
  display: flex; align-items: center; gap: 14px;
}
.mic {
  flex: none; width: 48px; height: 36px; border-radius: 12px; border: 0;
  background: #4b4f6b; color: #fff; display: grid; place-items: center; cursor: pointer;
  box-shadow: 0 4px 12px rgba(30, 30, 70, .2);
}
.mic svg { width: 18px; height: 18px; }
.stage[data-state="listening"] .mic { background: #8a22b8; }
.transcript { margin: 0; flex: 1; min-width: 0; font-size: 14px; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.who { font-size: 11px; font-weight: 700; letter-spacing: .14em; color: #a0138f; margin-right: 6px; }
.who.ai { color: #3a3fb8; }
.said { font-style: italic; }
.stop {
  flex: none; display: inline-flex; align-items: center; gap: 6px; min-height: 40px;
  border: 1px solid rgba(80, 40, 170, .3); background: rgba(255, 255, 255, .85); color: #3d1f94;
  border-radius: 999px; padding: 6px 14px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.stop svg { width: 14px; height: 14px; }

/* ---------- panel ---------- */
.eyebrow { margin: 0 0 6px; font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.intro h1 { margin: 0 0 10px; font-size: clamp(26px, 2.6vw, 34px); line-height: 1.15; letter-spacing: -.01em; font-weight: 700; color: var(--ink); text-wrap: balance; }
.lede { margin: 0 0 12px; color: var(--ink-2); max-width: 60ch; }
.honesty {
  margin: 0; font-size: 13.5px; line-height: 1.5; color: var(--ink-2);
  background: rgba(255, 255, 255, .55); border: 1px dashed rgba(60, 70, 160, .3);
  border-radius: 12px; padding: 10px 12px;
}

.card {
  background: var(--card); border: 1px solid rgba(255, 255, 255, .8);
  border-radius: var(--radius); padding: 18px 20px;
  box-shadow: 0 10px 30px -18px rgba(40, 50, 150, .45), 0 1px 0 rgba(255, 255, 255, .6) inset;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.card h2 { margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: #242a8f; display: flex; align-items: center; gap: 8px; }
.card h2 .num { font-variant-numeric: tabular-nums; color: var(--ink-3); font-weight: 600; }
.card-kicker { margin: 0 0 10px; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.card ul, .card ol { margin: 0; padding-left: 20px; }
.card li { margin: 0 0 6px; color: var(--ink-2); }
.card li:last-child { margin-bottom: 0; }

/* form */
.lead-form { display: flex; flex-direction: column; gap: 12px; }
.route { border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid rgba(60, 70, 180, .25); background: rgba(255, 255, 255, .8); color: var(--ink);
  border-radius: 999px; padding: 7px 14px; min-height: 40px; font-size: 14px; cursor: pointer; text-align: left;
  display: inline-flex; align-items: center; gap: 8px;
}
.chip small { color: var(--ink-3); font-size: 12.5px; }
.chip:hover { border-color: #3a46c8; background: #fff; }
.chip[aria-pressed="true"] { border-color: #2f3fd6; background: #eef0ff; }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; flex: 1; }
.field-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-row .field { flex: 1 1 200px; }
label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
input[type="text"], select {
  width: 100%; min-height: 44px; padding: 10px 12px;
  border: 1px solid rgba(60, 70, 160, .28); border-radius: 12px; background: #fff; color: var(--ink);
}
input::placeholder { color: #6a70a0; }
input[aria-invalid="true"] { border-color: #b3261e; }
.form-error { margin: 0; min-height: 0; color: #a3221a; font-size: 14px; font-weight: 500; }
.form-error:empty { display: none; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.check { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: #3a3fd0; }
.btn-primary {
  border: 0; border-radius: 999px; padding: 10px 26px; min-height: 46px; cursor: pointer;
  font-weight: 700; letter-spacing: .02em; color: #fff;
  background: linear-gradient(222deg, #5d66ee, #7a45e6);
  box-shadow: 0 8px 20px -8px rgba(90, 60, 220, .7);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary[disabled] { opacity: .6; cursor: progress; }
.btn-ghost {
  border: 1px solid rgba(60, 70, 180, .3); background: rgba(255, 255, 255, .8); color: #26309a;
  border-radius: 999px; padding: 8px 16px; min-height: 40px; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
}

/* research trace */
.steps { list-style: none; padding: 0 !important; margin: 0; display: grid; gap: 6px; }
.steps li { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 8px; margin: 0; font-size: 14px; align-items: start; }
.steps li .tick { width: 18px; height: 18px; border-radius: 50%; margin-top: 2px; background: #cfd5fb; display: grid; place-items: center; }
.steps li.done .tick { background: #3c46d0; }
.steps li.done .tick::after { content: ''; width: 7px; height: 4px; border: 2px solid #fff; border-top: 0; border-right: 0; transform: rotate(-45deg) translate(1px, -1px); }
.steps li:not(.done) { opacity: .55; }
.steps b { color: var(--ink); font-weight: 600; }
.steps span.val { color: var(--ink-2); }

/* briefing */
.card, .briefing { scroll-margin-top: calc(var(--hdr) + 16px); }
.briefing { display: flex; flex-direction: column; gap: 16px; outline: none; }
dl.summary { margin: 0 0 14px; display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 14px; }
dl.summary dt { font-size: 13px; font-weight: 600; color: var(--ink-3); }
dl.summary dd { margin: 0; font-weight: 600; color: var(--ink); overflow-wrap: anywhere; }
.figures { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 8px; }
.fig { background: var(--card-strong); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.fig .k { display: block; font-size: 12px; color: var(--ink-3); font-weight: 500; line-height: 1.3; }
.fig .v { display: block; font-size: 18px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; line-height: 1.3; margin-top: 2px; }
.fig.hot { background: #26207a; border-color: #26207a; }
.fig.hot .k { color: #d9d6ff; }
.fig.hot .v { color: #fff; }

.offers { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.offer { border-radius: 14px; padding: 12px 14px; border: 1px solid var(--line); background: var(--card-strong); }
.offer .tag { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.offer .name { font-weight: 700; margin: 4px 0 2px; color: var(--ink); }
.offer .price { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--ink); }
.offer .meta { font-size: 13px; color: var(--ink-2); }
.offer.rec { border: 2px solid #3c46d0; background: #fff; }
.offer.rec .tag { color: #2f3fd6; }
.offer.anchor .price { text-decoration: none; color: #3a3f6e; }

.pb-block { margin-top: 12px; }
.pb-block h3 { margin: 0 0 4px; font-size: 13px; font-weight: 700; color: #242a8f; }
.pb-block p { margin: 0; color: var(--ink-2); }
blockquote.opening { margin: 6px 0 0; padding: 10px 14px; border-left: 3px solid #7a45e6; background: #fff; border-radius: 0 12px 12px 0; font-size: 16px; color: var(--ink); }
.frameworks { display: grid; gap: 10px; }
.fw { border-left: 3px solid #3c46d0; padding: 2px 0 2px 12px; }
.fw h3 { margin: 0 0 2px; font-size: 15px; color: var(--ink); }
.fw p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.memo-text { margin: 0 0 12px; color: var(--ink); font-size: 15.5px; }
.memo-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.memo-note { font-size: 13px; color: var(--ink-3); margin: 8px 0 0; }
.revise-form { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.revise-form input { flex: 1 1 220px; }
.outcome { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; align-items: center; }
.outcome-msg { font-size: 13.5px; color: var(--ink-2); margin: 8px 0 0; }

.foot { padding: 24px clamp(16px, 3vw, 40px) calc(28px + env(safe-area-inset-bottom, 0px)); text-align: center; font-size: 13px; color: var(--ink-3); }
.foot p { margin: 0 auto; max-width: 80ch; }

@media (prefers-reduced-motion: no-preference) {
  .card.enter { animation: rise .45s cubic-bezier(.2, .7, .2, 1) both; }
  @keyframes rise { from { opacity: 0; transform: translateY(10px); } }
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  :root { --orb: 176px; --hdr: 56px; }
  .app { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .stage { position: relative; top: 0; height: auto; min-height: 0; padding: 36px 0 84px; }
  .orb-wrap { margin-bottom: 48px; }
  .stage-foot { bottom: 16px; }
  .panel { padding-top: 8px; }
}
@media (max-width: 480px) {
  .brand-text { font-size: 11px; letter-spacing: .12em; gap: 6px; }
  .brand-text strong { font-size: 14px; }
  .offers { grid-template-columns: 1fr; }
  .card { padding: 16px; }
  .figures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stop span { display: none; }
}