/* Quad Founders app. Builds on base.css tokens. */

html, body { height: 100%; }

/* ---------- Shell ---------- */
.shell { display: grid; grid-template-columns: 252px 1fr; height: 100vh; height: 100dvh; }
.sidebar { background: var(--sidebar); border-right: 1px solid var(--border-soft); display: flex; flex-direction: column; min-height: 0; padding: 12px 10px calc(12px + env(safe-area-inset-bottom)); }
.main { position: relative; display: flex; flex-direction: column; min-width: 0; min-height: 0; isolation: isolate; }
.main::before { /* soft brand glow behind content */
  content: ""; position: absolute; z-index: -1; inset: 0 0 auto 0; height: 420px; pointer-events: none;
  background:
    radial-gradient(600px 220px at 30% -40px, color-mix(in srgb, var(--q0) 13%, transparent), transparent 70%),
    radial-gradient(520px 220px at 75% -60px, color-mix(in srgb, var(--q1) 11%, transparent), transparent 70%);
}
#view { flex: 1; overflow-y: auto; min-height: 0; scroll-behavior: smooth; }
#view:focus { outline: none; }

.sb-head { padding: 4px 8px 14px; display: flex; align-items: center; justify-content: space-between; }
.sb-new {
  display: flex; align-items: center; gap: 8px; height: 34px; padding: 0 12px; margin: 0 0 14px;
  border-radius: 10px; text-decoration: none; font-weight: 550; font-size: 13px; color: var(--text);
  border: 1px solid transparent;
  background: linear-gradient(var(--panel), var(--panel)) padding-box, var(--grad) border-box;
  box-shadow: var(--shadow-sm); transition: transform .15s var(--ease), box-shadow .15s;
}
.sb-new:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.sb-new svg { color: var(--accent); }
.sb-new kbd { margin-left: auto; }
.sb-nav { flex: 1; overflow-y: auto; display: grid; align-content: start; gap: 1px; }
.sb-label { font-size: 11px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--text-3); padding: 14px 10px 6px; }
.sb-item { position: relative; display: flex; align-items: center; gap: 10px; height: 32px; padding: 0 10px; border-radius: 8px; text-decoration: none; font-size: 13px; color: var(--text-2); transition: background .12s, color .12s; }
.sb-item:hover { background: var(--hover); color: var(--text); }
.sb-item[aria-current="page"] { background: var(--panel); color: var(--text); font-weight: 550; box-shadow: var(--shadow-sm), 0 0 0 1px var(--border-soft); }
.sb-item .grow { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-item .count { font: 500 11px var(--mono); color: var(--text-3); }
.sb-item .dot { width: 8px; height: 8px; border-radius: 3px; flex: none; margin: 0 4px; }
.sb-item .mini { width: 26px; height: 3px; border-radius: 2px; background: var(--border); overflow: hidden; flex: none; }
.sb-item .mini i { display: block; height: 100%; border-radius: inherit; transition: width .5s var(--ease); }
.sb-foot { padding: 12px 10px 4px; display: grid; gap: 8px; font-size: 11.5px; color: var(--text-3); line-height: 1.45; border-top: 1px solid var(--border-soft); }
.mode { justify-self: start; display: inline-flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; color: var(--warn); background: var(--warn-soft); border-radius: 999px; padding: 2px 9px; }
.mode::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }

.topbar { height: 52px; flex: none; display: flex; align-items: center; gap: 10px; padding: 0 20px; border-bottom: 1px solid var(--border-soft); background: color-mix(in srgb, var(--bg) 70%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.crumbs { display: flex; align-items: center; gap: 7px; min-width: 0; font-size: 13px; color: var(--text-3); }
.crumbs a { text-decoration: none; color: var(--text-3); white-space: nowrap; transition: color .12s; }
.crumbs a:hover { color: var(--text); }
.crumbs .cur { color: var(--text); font-weight: 550; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.crumbs .sep { color: var(--border); }
.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 8px; border: 0; background: transparent; color: var(--text-2); cursor: pointer; }
.icon-btn:hover { background: var(--hover); color: var(--text); }
.icon-btn.menu-btn { display: none; }
.scrim { display: none; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 30; inset: 0 auto 0 0; width: 280px; transform: translateX(-100%); transition: transform .25s var(--ease); box-shadow: var(--shadow-lg); padding-top: calc(12px + env(safe-area-inset-top)); }
  .shell.nav-open .sidebar { transform: none; }
  .shell.nav-open .scrim { display: block; position: fixed; inset: 0; z-index: 20; background: rgba(0,0,0,.4); backdrop-filter: blur(2px); animation: fade .2s; }
  .icon-btn.menu-btn { display: inline-flex; margin-left: -6px; }
  .topbar { padding: env(safe-area-inset-top) 14px 0; height: calc(52px + env(safe-area-inset-top)); }
}

/* ---------- Entrance motion ---------- */
.enter > * { animation: rise .5s var(--ease) both; }
.enter > *:nth-child(2) { animation-delay: .05s; }
.enter > *:nth-child(3) { animation-delay: .1s; }
.enter > *:nth-child(4) { animation-delay: .15s; }
.enter > *:nth-child(5) { animation-delay: .2s; }
.enter > *:nth-child(6) { animation-delay: .25s; }
.enter > *:nth-child(n+7) { animation-delay: .3s; }

/* ---------- Forms ---------- */
.field { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--r); background: var(--panel); font-size: 14px; line-height: 1.5; resize: vertical; transition: border-color .15s, box-shadow .15s; box-shadow: var(--shadow-sm); }
.field::placeholder { color: var(--text-3); }
.field:hover { border-color: color-mix(in srgb, var(--border) 50%, var(--text-3)); }
.field:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--ring); }
select.field { height: 38px; padding: 0 10px; }
.label { display: block; font-size: 13px; font-weight: 550; margin-bottom: 7px; }
.help { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }
.err { font-size: 13px; color: var(--danger); background: var(--danger-soft); padding: 8px 12px; border-radius: var(--r); margin-top: 4px; }
.err[hidden] { display: none; }

.seg { display: inline-flex; justify-self: start; width: max-content; padding: 3px; gap: 2px; border-radius: 10px; background: var(--hover); }
.seg button { height: 28px; padding: 0 12px; border: 0; border-radius: 7px; background: transparent; font-size: 13px; font-weight: 550; color: var(--text-2); cursor: pointer; transition: background .15s, color .15s, box-shadow .15s; }
.seg button:hover { color: var(--text); }
.seg button[aria-pressed="true"], .seg button[aria-selected="true"] { background: var(--panel); color: var(--text); box-shadow: var(--shadow-sm), 0 0 0 1px var(--border-soft); }

.tag { display: inline-flex; align-items: center; gap: 5px; height: 22px; padding: 0 8px; border-radius: 6px; font-size: 11.5px; font-weight: 550; color: var(--text-2); background: var(--hover); white-space: nowrap; }
.tag.src { color: var(--accent); background: var(--accent-soft); text-decoration: none; }
.tag.src::before { content: ""; width: 10px; height: 10px; background: currentColor; -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6.5 9.5l3-3M7 4.5l1-1a2.5 2.5 0 013.5 3.5l-1 1M9 11.5l-1 1A2.5 2.5 0 014.5 9l1-1'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6.5 9.5l3-3M7 4.5l1-1a2.5 2.5 0 013.5 3.5l-1 1M9 11.5l-1 1A2.5 2.5 0 014.5 9l1-1'/%3E%3C/svg%3E") center/contain no-repeat; }
.tag.src:hover { background: color-mix(in srgb, var(--accent) 18%, transparent); }
.tag.warn { color: var(--warn); background: var(--warn-soft); }
.tag.ai { background: var(--grad-soft); color: var(--text); }
.tag.ai::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--grad); }
.tag.novelty { color: #fff; background: var(--grad); }

/* ---------- Pages ---------- */
.page { max-width: 880px; margin: 0 auto; padding: 36px 28px 80px; }
.page.wide { max-width: 1280px; }
.page-head { display: grid; gap: 8px; margin-bottom: 28px; }
.page-head h1 { font-size: 30px; line-height: 1.15; letter-spacing: -0.035em; font-weight: 650; }
.page-head .sub { color: var(--text-2); font-size: 15px; max-width: 65ch; }
.meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.eyebrow { font: 500 11.5px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
@media (max-width: 600px) { .page { padding: 22px 16px 56px; } .page-head h1 { font-size: 25px; } }

/* ---------- Start ---------- */
.start { max-width: 720px; margin: 0 auto; padding: 8vh 24px 80px; display: grid; gap: 26px; }
.start-hero { display: grid; gap: 14px; justify-items: start; }
.orb { position: relative; width: 64px; height: 64px; display: grid; place-items: center; border-radius: 18px; background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow); }
.orb::before { content: ""; position: absolute; inset: -22px; z-index: -1; border-radius: 50%; background: var(--grad); filter: blur(28px); opacity: .35; animation: breathe 5s ease-in-out infinite; }
.orb .mark { width: 34px; height: 34px; }
.orb .mark circle { animation: dash-spin 9s linear infinite; transform-origin: 11px 11px; }
@keyframes breathe { 50% { opacity: .55; transform: scale(1.08); } }
@keyframes dash-spin { to { transform: rotate(360deg); } }
.start h1 { font-size: clamp(34px, 5vw, 48px); line-height: 1.05; letter-spacing: -0.045em; font-weight: 700; }
.start .sub { color: var(--text-2); font-size: 16px; max-width: 56ch; }

.composer-box {
  border: 1px solid var(--border); border-radius: 16px; background: var(--panel);
  box-shadow: var(--shadow); transition: box-shadow .2s, border-color .2s;
}
.composer-box:focus-within {
  border-color: transparent;
  background: linear-gradient(var(--panel), var(--panel)) padding-box, var(--grad) border-box;
  box-shadow: 0 0 0 5px var(--accent-soft), var(--shadow-lg);
}
.composer-box textarea { display: block; width: 100%; min-height: 128px; border: 0; background: transparent; padding: 18px 18px 6px; font-size: 16px; line-height: 1.55; resize: none; outline: none; }
.composer-box textarea::placeholder { color: var(--text-3); }
.composer-box .bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 10px 10px 18px; }
.composer-box .bar .help { margin: 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 7px; height: 30px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel); font-size: 12.5px; font-weight: 500; color: var(--text-2); cursor: pointer; transition: transform .15s var(--ease), border-color .15s, color .15s, box-shadow .15s; }
.chip:hover { color: var(--text); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.chip i { width: 7px; height: 7px; border-radius: 50%; flex: none; }

.feature-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 10px; }
.feature { padding: 16px; border-radius: var(--r-lg); border: 1px solid var(--border-soft); background: color-mix(in srgb, var(--panel) 70%, transparent); display: grid; gap: 6px; align-content: start; }
.feature .ic { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; color: #fff; margin-bottom: 4px; }
.feature b { font-size: 13.5px; font-weight: 600; }
.feature span { font-size: 12.5px; color: var(--text-2); line-height: 1.5; }
@media (max-width: 680px) { .feature-row { grid-template-columns: 1fr; } }

.form-grid { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.panel { border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); padding: 22px; box-shadow: var(--shadow); }

/* Idea results */
.ideas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 760px) { .ideas { grid-template-columns: 1fr; } }
.idea { position: relative; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--panel); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; overflow: hidden; transition: transform .2s var(--ease), box-shadow .2s; animation: rise .5s var(--ease) both; }
.idea:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.idea::before { content: ""; height: 3px; background: var(--c, var(--accent)); }
.idea .hd { padding: 16px 18px 12px; display: grid; gap: 4px; }
.idea .hd .n { font: 500 11px var(--mono); color: var(--c); letter-spacing: .05em; }
.idea h3 { font-size: 16px; letter-spacing: -0.02em; }
.idea .hd p { color: var(--text-2); font-size: 13.5px; }
.idea dl { margin: 0; padding: 12px 18px; display: grid; gap: 10px; align-content: start; font-size: 13px; border-top: 1px solid var(--border-soft); flex: 1; }
.idea dt { font: 500 10.5px var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--text-3); margin-bottom: 1px; }
.idea dd { margin: 0; }
.idea .foot { padding: 12px 18px 16px; }

/* ---------- Questions ---------- */
.q-step { max-width: 660px; margin: 0 auto; padding: 9vh 24px 80px; display: grid; gap: 18px; }
.q-step .k { font: 500 12px var(--mono); color: var(--text-3); letter-spacing: .04em; }
.q-step h1 { font-size: clamp(24px, 3.4vw, 32px); line-height: 1.2; letter-spacing: -0.035em; font-weight: 650; }
.steps { display: flex; gap: 6px; }
.steps span { height: 4px; flex: 1; border-radius: 3px; background: var(--border); overflow: hidden; position: relative; }
.steps span.on::after { content: ""; position: absolute; inset: 0; background: var(--grad); background-size: 400% 100%; animation: grow .5s var(--ease) both; transform-origin: left; }
@keyframes grow { from { transform: scaleX(0); } }

/* Building animation */
.building { display: grid; justify-items: center; gap: 22px; padding: 12vh 24px; text-align: center; }
.building .ring { width: 120px; height: 120px; position: relative; }
.building .ring::before { content: ""; position: absolute; inset: -20px; border-radius: 50%; background: var(--grad); filter: blur(34px); opacity: .3; animation: breathe 3s ease-in-out infinite; }
.building svg { width: 120px; height: 120px; position: relative; }
.building svg path { stroke-width: 12; stroke-linecap: butt; opacity: .18; animation: qfill 2.8s ease-in-out infinite; }
.building svg path:nth-child(2) { animation-delay: .35s; }
.building svg path:nth-child(3) { animation-delay: .7s; }
.building svg path:nth-child(4) { animation-delay: 1.05s; }
@keyframes qfill { 0%, 100% { opacity: .18; } 30%, 60% { opacity: 1; } }
.building h2 { font-size: 20px; letter-spacing: -0.03em; }
.building .line { color: var(--text-2); font-size: 14px; min-height: 22px; animation: fade .4s; }

/* ---------- Overview ---------- */
.hero-card { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; padding: 28px; border-radius: var(--r-xl); border: 1px solid var(--border); background: var(--panel); box-shadow: var(--shadow); overflow: hidden; margin-bottom: 18px; }
.hero-card::after { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: var(--grad); opacity: .08; filter: blur(30px); pointer-events: none; }
.hero-card h1 { font-size: 30px; line-height: 1.12; letter-spacing: -0.04em; font-weight: 700; }
.hero-card .sub { color: var(--text-2); font-size: 14.5px; }
.hero-card .info { display: grid; gap: 10px; min-width: 0; }
.qring { position: relative; width: 168px; height: 168px; }
.qring svg { width: 168px; height: 168px; }
.qring circle { stroke-linecap: butt; }
.qring .track { stroke: var(--border-soft); stroke-width: 14; }
.qring .arc { stroke-width: 14; stroke-linecap: butt; transition: stroke-dashoffset 1s var(--ease); }
.qring .center { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.qring .center b { font-size: 32px; letter-spacing: -0.04em; font-weight: 700; line-height: 1; }
.qring .center span { font-size: 11.5px; color: var(--text-3); margin-top: 4px; }
@media (max-width: 640px) {
  .hero-card { grid-template-columns: 1fr; padding: 20px; }
  .hero-card h1 { font-size: 24px; }
  .qring { justify-self: center; }
}

.quad-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 30px; }
@media (max-width: 640px) { .quad-grid { grid-template-columns: 1fr; } }
.qtile { position: relative; display: grid; gap: 10px; padding: 16px 18px; border-radius: var(--r-lg); border: 1px solid var(--border); background: var(--panel); text-decoration: none; box-shadow: var(--shadow-sm); overflow: hidden; transition: transform .2s var(--ease), box-shadow .2s, border-color .2s; }
.qtile::before { content: ""; position: absolute; inset: 0; background: radial-gradient(260px 120px at 0% 0%, color-mix(in srgb, var(--c) 12%, transparent), transparent 70%); pointer-events: none; }
.qtile:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--c) 40%, var(--border)); }
.qtile .top { display: flex; align-items: center; gap: 10px; }
.qtile .ic { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; background: var(--c); color: #fff; flex: none; box-shadow: 0 4px 12px -4px var(--c); }
.qtile .ic svg { width: 15px; height: 15px; }
.qtile h3 { font-size: 14px; flex: 1; }
.qtile .cnt { font: 500 12px var(--mono); color: var(--text-3); }
.qtile .bar { height: 5px; border-radius: 3px; background: var(--border-soft); overflow: hidden; }
.qtile .bar i { display: block; height: 100%; border-radius: inherit; background: var(--c); transition: width .8s var(--ease); }
.qtile .next { font-size: 12.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.qtile .next b { color: var(--text-3); font-weight: 500; }

.section { margin-top: 34px; scroll-margin-top: 20px; }
.section-head { display: flex; align-items: center; gap: 10px; padding: 0 0 12px; }
.section-head .ic { width: 24px; height: 24px; border-radius: 7px; display: grid; place-items: center; background: var(--c, var(--text)); color: #fff; flex: none; }
.section-head .ic svg { width: 13px; height: 13px; }
.section-head h2 { font-size: 16px; letter-spacing: -0.02em; }
.section-head h2 a { text-decoration: none; }
.section-head h2 a:hover { text-decoration: underline; text-underline-offset: 4px; }
.section-head .count { font: 500 12px var(--mono); color: var(--text-3); }
.section-head .spacer { flex: 1; }
.summary { position: relative; border: 1px solid var(--border); border-radius: var(--r-lg); padding: 16px 18px 12px 20px; background: var(--panel); display: grid; gap: 10px; margin-bottom: 10px; box-shadow: var(--shadow-sm); overflow: hidden; }
.summary::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--c, var(--accent)); }
.summary p { color: var(--text); font-size: 14.5px; line-height: 1.6; }
.summary .row { display: flex; gap: 4px; align-items: center; justify-content: space-between; }
.summary .acts { display: flex; gap: 2px; }
.summary textarea { min-height: 100px; }
.list { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--panel); overflow: hidden; box-shadow: var(--shadow-sm); }
.rowi { position: relative; display: flex; align-items: center; gap: 10px; min-height: 46px; padding: 6px 14px 6px 10px; border-top: 1px solid var(--border-soft); text-decoration: none; transition: background .12s; }
.rowi:first-child { border-top: 0; }
.rowi:hover { background: var(--hover); }
.rowi .title { flex: 1; min-width: 0; font-size: 14px; font-weight: 450; }
.rowi .title::after { content: ""; position: absolute; inset: 0; } /* whole row clickable */
.rowi .status, .rowi .tag { position: relative; z-index: 1; }
.rowi.done .title { color: var(--text-3); text-decoration: line-through; text-decoration-color: var(--border); }
.rowi .mins { font: 500 11.5px var(--mono); color: var(--text-3); white-space: nowrap; }
.rowi .chev { color: var(--text-3); transition: transform .15s var(--ease); }
.rowi:hover .chev { transform: translateX(2px); color: var(--text); }
@media (max-width: 600px) { .rowi .tag { display: none; } }

.status { width: 28px; height: 28px; border: 0; background: transparent; display: inline-flex; align-items: center; justify-content: center; border-radius: 7px; cursor: pointer; flex: none; color: var(--text-3); transition: background .12s, color .12s, transform .2s var(--ease); }
.status:hover { background: var(--active); color: var(--text-2); }
.status:active { transform: scale(.85); }
.status svg { width: 18px; height: 18px; }
.status.on { color: var(--c, var(--accent)); }
.status.on svg circle { fill: var(--c, var(--accent)); stroke: var(--c, var(--accent)); }
.status.on svg path { stroke: #fff; stroke-width: 2; }
.status.on svg { animation: pop .35s var(--ease); }
@keyframes pop { 40% { transform: scale(1.25); } }

/* Assumptions */
.assume-card { border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 8px; }
.assume-card .hd { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border-soft); background: var(--grad-soft); }
.assume-card .hd .ic { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: var(--grad); color: #fff; flex: none; }
.assume-card .hd h2 { font-size: 15px; letter-spacing: -0.02em; }
.assume-card .hd p { font-size: 12.5px; color: var(--text-2); }
.assume-card .hd .grow { flex: 1; min-width: 0; }
.assume-card .hd .count { font: 500 12px var(--mono); color: var(--text-2); }
.assume { display: grid; grid-template-columns: 1fr auto; gap: 4px 14px; padding: 14px 18px; border-top: 1px solid var(--border-soft); align-items: start; }
.assume:first-of-type { border-top: 0; }
.assume .t { font-size: 14px; font-weight: 500; }
.assume .how { grid-column: 1; font-size: 12.5px; color: var(--text-2); display: flex; gap: 6px; }
.assume .how b { font-weight: 600; color: var(--text-3); font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; text-transform: uppercase; padding-top: 2px; }
.assume select { grid-row: 1 / span 2; grid-column: 2; height: 28px; font-size: 12px; font-weight: 600; padding: 0 26px 0 10px; width: auto; border-radius: 999px; box-shadow: none; appearance: none; -webkit-appearance: none; cursor: pointer;
  background: var(--hover) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%238F8F8F' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='M5 6.5l3 3 3-3'/%3E%3C/svg%3E") right 8px center/12px no-repeat; border-color: transparent; }
.assume select[data-s="holds"] { background-color: var(--ok-soft); color: var(--ok); }
.assume select[data-s="wrong"] { background-color: var(--danger-soft); color: var(--danger); }

/* ---------- Task detail ---------- */
.task-head { position: relative; display: grid; gap: 12px; padding: 24px; border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--panel); box-shadow: var(--shadow-sm); overflow: hidden; }
.task-head::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--c, var(--accent)); }
.task-head h1 { font-size: 26px; line-height: 1.2; letter-spacing: -0.035em; font-weight: 650; }
.task-head .why { color: var(--text-2); font-size: 14.5px; }
.qchip { display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 8px; border-radius: 6px; font-size: 11.5px; font-weight: 600; color: var(--c); background: color-mix(in srgb, var(--c) 12%, transparent); }
.qchip::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--c); }
.thread { display: grid; gap: 22px; padding: 28px 0 12px; }
.msg { display: grid; grid-template-columns: 30px 1fr; gap: 12px; animation: rise .4s var(--ease) both; }
.avatar { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; font-size: 11px; font-weight: 650; background: var(--panel-2); border: 1px solid var(--border); color: var(--text-2); }
.avatar.ai { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 4px 14px -4px rgba(124,58,237,.6); }
.avatar.ai .mark { width: 18px; height: 18px; }
.avatar.ai .mark circle, .avatar.ai .mark path { stroke: #fff; }
.msg .who { font-size: 12.5px; color: var(--text-3); margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.msg .who b { color: var(--text); font-weight: 600; }
.msg .bubble { font-size: 14.5px; line-height: 1.65; }
.msg.ai .bubble { padding: 14px 16px; border-radius: 4px 14px 14px 14px; border: 1px solid var(--border); background: var(--panel); box-shadow: var(--shadow-sm); }
.msg .bubble p + p, .msg .bubble p + ul, .msg .bubble ul + p { margin-top: 10px; }
.msg .bubble ul { margin: 8px 0 0; padding-left: 20px; }
.msg .bubble li + li { margin-top: 4px; }
.msg .bubble li::marker { color: var(--accent); }
.msg .bubble .tag { vertical-align: 1px; margin-left: 2px; }
.empty-chat { display: grid; justify-items: center; text-align: center; gap: 10px; padding: 34px 16px 10px; color: var(--text-2); }
.empty-chat .avatar { width: 48px; height: 48px; border-radius: 14px; }
.empty-chat .avatar .mark { width: 26px; height: 26px; }
.empty-chat h3 { font-size: 16px; color: var(--text); }
.empty-chat p { font-size: 13.5px; max-width: 46ch; }
.empty-chat .chips { justify-content: center; margin-top: 6px; }
.reply { position: sticky; bottom: 0; background: linear-gradient(transparent, var(--bg) 24px); padding: 24px 0 calc(18px + env(safe-area-inset-bottom)); }
.reply .composer-box textarea { min-height: 64px; font-size: 14.5px; padding: 14px 16px 4px; }
.typing { display: inline-flex; gap: 4px; padding: 14px 16px; border-radius: 4px 14px 14px 14px; border: 1px solid var(--border); background: var(--panel); }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--text-3); animation: bounce 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%, 60%, 100% { transform: none; opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }

/* ---------- Website builder ---------- */
.site-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 22px; align-items: start; }
@media (max-width: 1080px) { .site-grid { grid-template-columns: 1fr; } }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.frame { border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: var(--panel); margin: 0 auto; box-shadow: var(--shadow-lg); transition: max-width .35s var(--ease); max-width: 100%; }
.frame.phone { max-width: 390px; border-radius: 28px; border-width: 8px; border-color: var(--text); }
.frame .chrome { height: 38px; display: flex; align-items: center; gap: 7px; padding: 0 12px; border-bottom: 1px solid var(--border-soft); background: var(--panel-2); }
.frame.phone .chrome { display: none; }
.frame .chrome i { width: 10px; height: 10px; border-radius: 50%; background: #FF5F57; }
.frame .chrome i:nth-child(2) { background: #FEBC2E; }
.frame .chrome i:nth-child(3) { background: #28C840; }
.frame .chrome span { flex: 1; max-width: 360px; margin: 0 auto; height: 24px; border-radius: 7px; background: var(--bg); border: 1px solid var(--border-soft); display: flex; align-items: center; justify-content: center; gap: 6px; font: 500 11.5px var(--mono); color: var(--text-3); overflow: hidden; white-space: nowrap; }
.frame iframe { display: block; width: 100%; height: 680px; border: 0; background: #fff; }
.frame.phone iframe { height: 720px; }
.inspector { display: grid; gap: 14px; position: sticky; top: 16px; }
.card { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--panel); padding: 18px; display: grid; gap: 12px; box-shadow: var(--shadow-sm); }
.card h3 { font-size: 14px; display: flex; align-items: center; gap: 8px; }
.card h3 svg { color: var(--accent); }
.card .help { margin: 0; }
.site-empty { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: 36px; border-radius: var(--r-xl); border: 1px solid var(--border); background: var(--panel); box-shadow: var(--shadow); }
.site-empty h1 { font-size: 30px; letter-spacing: -0.04em; line-height: 1.1; font-weight: 700; }
.site-empty .sub { color: var(--text-2); margin: 10px 0 20px; font-size: 14.5px; }
.site-empty ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 8px; font-size: 13.5px; color: var(--text-2); }
.site-empty li { display: flex; gap: 8px; align-items: center; }
.site-empty li svg { color: var(--ok); }
.mini-site { border-radius: 14px; border: 1px solid var(--border); background: var(--bg); box-shadow: var(--shadow-lg); overflow: hidden; transform: perspective(900px) rotateY(-10deg) rotateX(4deg); animation: float 6s ease-in-out infinite; }
.mini-site .bar { height: 26px; background: var(--panel-2); border-bottom: 1px solid var(--border-soft); display: flex; gap: 5px; align-items: center; padding: 0 10px; }
.mini-site .bar i { width: 7px; height: 7px; border-radius: 50%; background: var(--border); }
.mini-site .body { padding: 22px; display: grid; gap: 10px; }
.mini-site .l { height: 10px; border-radius: 5px; background: var(--border); }
.mini-site .h { height: 20px; width: 75%; border-radius: 6px; background: var(--text); opacity: .85; }
.mini-site .b { width: 90px; height: 26px; border-radius: 999px; background: var(--grad); margin-top: 4px; }
.mini-site .cards { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; margin-top: 8px; }
.mini-site .cards i { height: 54px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); }
@keyframes float { 50% { transform: perspective(900px) rotateY(-10deg) rotateX(4deg) translateY(-8px); } }
@media (max-width: 760px) { .site-empty { grid-template-columns: 1fr; padding: 22px; } .mini-site { display: none; } }

/* ---------- Skeleton + toasts ---------- */
.skel { display: grid; gap: 12px; }
.skel i { display: block; height: 14px; border-radius: 6px; background: linear-gradient(90deg, var(--hover), var(--active), var(--hover)); background-size: 200% 100%; animation: sh 1.2s infinite linear; }
.skel i.h { height: 30px; width: 45%; }
.skel i.s { width: 70%; }
.skel i.box { height: 150px; border-radius: var(--r-xl); }
@keyframes sh { to { background-position: -200% 0; } }
.working { display: flex; gap: 10px; align-items: center; color: var(--text-2); font-size: 13.5px; }
.toasts { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(20px + env(safe-area-inset-bottom)); z-index: 50; display: grid; gap: 8px; justify-items: center; }
.toast { display: flex; gap: 8px; align-items: center; max-width: 380px; padding: 10px 14px; border-radius: 12px; background: var(--text); color: var(--bg); font-size: 13px; font-weight: 500; box-shadow: var(--shadow-lg); animation: toast-in .35s var(--ease); }
.toast svg { color: var(--ok); width: 15px; height: 15px; }
.toast.error { background: var(--danger); color: #fff; }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px) scale(.96); } }