:root {
  --bg: #fbfbfa;
  --bg-elev: #ffffff;
  --bg-sunk: #f2f2ef;
  --fg: #1a1b1e;
  --fg-muted: #5d6068;
  --fg-faint: #8b8e96;
  --border: #e3e3df;
  --accent: #2f6df6;
  --accent-fg: #ffffff;
  --accent-soft: #e8efff;
  --ok: #18794e;
  --ok-soft: #e3f5ec;
  --warn: #9a5b00;
  --warn-soft: #fdf1dc;
  --danger: #c4321f;
  --code-bg: #16181d;
  --code-fg: #e6e7ea;
  --code-key: #8fb4ff;
  --code-str: #9ad7a5;
  --code-com: #7d828c;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 20, 30, .06), 0 4px 16px rgba(20, 20, 30, .05);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1013;
    --bg-elev: #17191d;
    --bg-sunk: #1d2025;
    --fg: #ecedef;
    --fg-muted: #a3a7b0;
    --fg-faint: #757a84;
    --border: #2a2d33;
    --accent: #6b9bff;
    --accent-fg: #0b1020;
    --accent-soft: #1b2640;
    --ok: #4cc38a;
    --ok-soft: #13291f;
    --warn: #f0b45a;
    --warn-soft: #2e2413;
    --danger: #ff7a66;
    --code-bg: #0a0b0d;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, kbd { font-family: var(--mono); font-size: .9em; }
:not(pre) > code {
  background: var(--bg-sunk);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: .05em .35em;
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -.015em; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .6em 1.1em;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--fg);
  font: 500 15px/1.2 var(--font);
  cursor: pointer;
  text-decoration: none !important;
  white-space: nowrap;
}
.btn:hover { border-color: var(--fg-faint); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: .35em .7em; font-size: 13px; }
.btn.danger { color: var(--danger); }

/* ---- Top nav ---- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 60px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--fg); letter-spacing: -.02em; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--accent); color: var(--accent-fg);
  display: grid; place-items: center; font: 700 14px/1 var(--mono);
}
.nav-links { display: flex; gap: 20px; margin-left: auto; }
.nav-links a { color: var(--fg-muted); font-size: 15px; }
.nav-links a:hover { color: var(--fg); text-decoration: none; }
@media (max-width: 820px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } .nav .btn + .btn { margin-left: -16px; } }

/* ---- Sections ---- */
section { padding: 80px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: 0; }
.eyebrow { font: 600 13px/1 var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); }
.section-head p { color: var(--fg-muted); font-size: 18px; }

/* ---- Hero ---- */
.hero { padding: 88px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 920px) { .hero-grid { grid-template-columns: 1fr; } }
.hero h1 { font-size: clamp(34px, 5vw, 54px); letter-spacing: -.03em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { font-size: 19px; color: var(--fg-muted); max-width: 560px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 20px; }
.hero-meta { display: flex; gap: 18px; flex-wrap: wrap; color: var(--fg-faint); font-size: 14px; }
.hero-meta span::before { content: "✓ "; color: var(--ok); }

/* ---- Code blocks ---- */
.code {
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-width: 0;
}
.code-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid #ffffff14;
  font: 12px/1 var(--mono); color: var(--code-com);
}
.code-bar i { width: 10px; height: 10px; border-radius: 50%; background: #ffffff22; display: inline-block; }
.code-bar b { font-weight: 400; margin-left: 8px; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font-size: 13.5px; line-height: 1.65; }
.code .k { color: var(--code-key); }
.code .s { color: var(--code-str); }
.code .c { color: var(--code-com); }

/* ---- Cards / grids ---- */
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 920px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid.cols-3, .grid.cols-2, .grid.cols-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  min-width: 0;
}
.card h3 { font-size: 17px; margin-bottom: 6px; }
.card p { color: var(--fg-muted); font-size: 15px; margin: 0; }
.card .icon {
  width: 36px; height: 36px; border-radius: 9px;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: 14px;
}
.card .icon svg { width: 20px; height: 20px; }

.badge {
  display: inline-block;
  font: 600 11px/1 var(--font); letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 7px; border-radius: 999px;
  background: var(--ok-soft); color: var(--ok);
  vertical-align: middle;
}
.badge.soon { background: var(--warn-soft); color: var(--warn); }
.badge.plan { background: var(--bg-sunk); color: var(--fg-muted); }

/* ---- Steps ---- */
.steps { counter-reset: step; }
.step { position: relative; padding-left: 52px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: var(--accent-fg);
  display: grid; place-items: center; font-weight: 700;
}
.step h3 { font-size: 18px; margin-top: 6px; }
.step p { color: var(--fg-muted); }

/* ---- Tabs (code examples) ---- */
.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px; }
.tab {
  border: 1px solid var(--border); background: var(--bg-elev); color: var(--fg-muted);
  padding: 6px 12px; border-radius: 7px; cursor: pointer; font: 500 14px/1.2 var(--font);
}
.tab[aria-selected="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.tab-panel[hidden] { display: none; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elev); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font-weight: 600; color: var(--fg-muted); background: var(--bg-sunk); font-size: 13px; }
td code { white-space: nowrap; }
.method { font: 700 11px/1 var(--mono); padding: 4px 6px; border-radius: 4px; background: var(--accent-soft); color: var(--accent); }
.method.del { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }

/* ---- Roadmap ---- */
.phase { border-left: 2px solid var(--border); padding: 0 0 8px 22px; position: relative; }
.phase::before {
  content: ""; position: absolute; left: -7px; top: 4px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--fg-faint);
}
.phase.done::before { background: var(--ok); border-color: var(--ok); }
.phase h3 { font-size: 17px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.phase ul { margin: 8px 0 24px; padding-left: 18px; color: var(--fg-muted); font-size: 15px; }
.phase li { margin: 3px 0; }

/* ---- Pricing ---- */
.price { font-size: 34px; font-weight: 700; letter-spacing: -.02em; margin: 6px 0 2px; }
.price small { font-size: 15px; color: var(--fg-muted); font-weight: 500; }
.card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.card ul.checks { list-style: none; padding: 0; margin: 14px 0 0; color: var(--fg-muted); font-size: 15px; }
.card ul.checks li { padding: 3px 0; }
.card ul.checks li::before { content: "✓ "; color: var(--ok); font-weight: 700; }

/* ---- FAQ ---- */
details { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elev); padding: 14px 18px; }
details + details { margin-top: 10px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--fg-muted); margin: 10px 0 0; }

/* ---- Footer ---- */
footer { padding: 36px 0 48px; color: var(--fg-faint); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; }

/* ---- Inbox app ---- */
.app { display: grid; grid-template-rows: auto auto 1fr; height: 100vh; height: 100dvh; }
.app-bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--bg-elev); flex-wrap: wrap; }
.app-bar .project { color: var(--fg-muted); font-size: 14px; }
.app-bar .spacer { flex: 1; }
.toolbar { display: flex; gap: 8px; padding: 10px 16px; border-bottom: 1px solid var(--border); flex-wrap: wrap; align-items: center; }
input[type="text"], input[type="password"], input[type="search"], input[type="email"] {
  font: 14px/1.2 var(--font); color: var(--fg);
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 7px;
  padding: 8px 10px; min-width: 0;
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.toolbar input { flex: 1 1 140px; }
.panes { display: grid; grid-template-columns: minmax(260px, 380px) 1fr; min-height: 0; }
@media (max-width: 760px) { .panes { grid-template-columns: 1fr; } .panes.has-detail .list { display: none; } .panes:not(.has-detail) .detail { display: none; } }
.list { border-right: 1px solid var(--border); overflow-y: auto; }
.msg { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--fg); padding: 12px 16px; cursor: pointer; font: inherit; }
.msg:hover { background: var(--bg-sunk); }
.msg[aria-current="true"] { background: var(--accent-soft); }
.msg .row { display: flex; gap: 8px; align-items: baseline; }
.msg .from { font-weight: 600; font-size: 14px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg time { color: var(--fg-faint); font-size: 12px; white-space: nowrap; }
.msg .subj { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg .to { font: 12px/1.4 var(--mono); color: var(--fg-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.otp-chip { font: 600 12px/1 var(--mono); background: var(--ok-soft); color: var(--ok); border-radius: 5px; padding: 3px 6px; }
.detail { overflow: hidden; display: grid; grid-template-rows: auto auto 1fr; min-width: 0; }
.detail-head { padding: 16px 20px 10px; border-bottom: 1px solid var(--border); }
.detail-head h2 { font-size: 20px; margin-bottom: 6px; word-break: break-word; }
.detail-head .meta { font-size: 13px; color: var(--fg-muted); display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; }
.detail-head .meta dt { color: var(--fg-faint); }
.detail-head .meta dd { margin: 0; word-break: break-all; }
.extract { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.extract .otp { font: 700 22px/1 var(--mono); letter-spacing: .08em; padding: 8px 12px; background: var(--ok-soft); color: var(--ok); border-radius: 8px; }
.detail .tabs { padding: 10px 20px 0; margin: 0; border-bottom: 1px solid var(--border); }
.detail .tab { border-radius: 7px 7px 0 0; border-bottom: 0; }
.detail-body { overflow: auto; min-height: 0; background: var(--bg-elev); }
.detail-body iframe { width: 100%; height: 100%; border: 0; background: #fff; display: block; }
.detail-body pre { margin: 0; padding: 16px 20px; white-space: pre-wrap; word-break: break-word; font-size: 13px; }
.empty { display: grid; place-items: center; height: 100%; color: var(--fg-faint); padding: 32px; text-align: center; }
.empty h2 { color: var(--fg); font-size: 20px; }
.connect { max-width: 460px; margin: 10vh auto; padding: 28px; }
.connect form { display: flex; gap: 8px; margin-top: 14px; }
.connect input { flex: 1; }
.error { color: var(--danger); font-size: 14px; margin-top: 10px; min-height: 1.4em; }
.live { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--fg-muted); }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.live.off::before { background: var(--fg-faint); }
/* ---- Signup ---- */
.signup { max-width: 440px; margin: 8vh auto; overflow-wrap: anywhere; }
.signup form { display: block; }
.signup label { display: block; font-weight: 600; font-size: 14px; margin: 16px 0 6px; }
.signup form input { width: 100%; }
.signup .error { margin-top: 6px; min-height: 0; }
.signup .error:empty { display: none; }
.signup input[aria-invalid="true"] { border-color: var(--danger); }
.signup button[type="submit"] { width: 100%; margin-top: 22px; }
.signup button:disabled { opacity: .6; cursor: progress; }
.hint { color: var(--fg-faint); font-size: 13px; margin-top: 6px; }
.key-row { display: flex; gap: 8px; }
.key-row input { flex: 1; min-width: 0; font-family: var(--mono); }
.notice { background: var(--warn-soft); color: var(--warn); border-radius: 7px; padding: 10px 12px; font-size: 14px; margin: 12px 0; }
.signup .meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px; margin: 0 0 20px; }
.signup .meta dt { color: var(--fg-muted); }
.signup .meta dd { margin: 0; font-family: var(--mono); }
@media (max-width: 520px) { .signup { margin: 16px; padding: 22px 18px; } }

.hidden { display: none !important; }