:root {
  --color-carbon: #181925;
  --color-paper-white: #ffffff;
  --color-linen: #fafafa;
  --color-mist: #f5f5f5;
  --color-fog: #e8e8e8;
  --color-ash: #999999;
  --color-graphite: #666666;
  --color-lavender: #918df6;
  --color-lavender-deep: #7d78f0;
  --color-iris: #9580ff;
  --color-mint: #33c758;
  --color-mint-wash: #def6e4;
  --color-amber: #ffa600;
  --color-sky: #2c78fc;
  --color-magenta: #d6409f;
  --color-ember: #ff3e00;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --shadow-subtle: rgba(0, 0, 0, 0.08) 0px 1px 1px 1px, rgba(0, 0, 0, 0.06) 0px 0px 0px 0.5px;
  --shadow-subtle-2: rgba(0, 0, 0, 0.08) 0px 1px 1px 0px, rgba(0, 0, 0, 0.05) 0px 0px 0px 1px;
  --shadow-subtle-3: rgba(0, 0, 0, 0.06) 0px 1px 3px 0px, rgba(0, 0, 0, 0.06) 0px 8px 16px 0px, rgba(0, 0, 0, 0.02) 0px 0px 0px 1px;

  --page-max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-paper-white);
  color: var(--color-carbon);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.32px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: 0; }

.wrap { max-width: var(--page-max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }
section { padding: 64px 0; }
@media (min-width: 900px) { section { padding: 96px 0; } }
.band { background: var(--color-linen); }
.center { text-align: center; }

/* Type */
.display { font-size: clamp(38px, 7vw, 60px); line-height: 1.08; font-weight: 600; letter-spacing: -0.05em; margin: 0; }
.h2 { font-size: clamp(28px, 4.4vw, 36px); line-height: 1.22; font-weight: 600; letter-spacing: -0.017em; margin: 0; }
.h3 { font-size: 18px; line-height: 1.33; font-weight: 600; margin: 0; }
.lede { font-size: 18px; line-height: 1.56; color: var(--color-graphite); margin: 0; }
.muted { color: var(--color-graphite); }
.faint { color: var(--color-ash); }
.caption { font-size: 12px; line-height: 1.33; }
.eyebrow { font-size: 13px; font-weight: 500; color: var(--color-lavender-deep); margin: 0 0 12px; }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-head .lede { margin-top: 16px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 9999px; padding: 10px 20px;
  font: 500 14px/1.4 var(--font); letter-spacing: -0.32px;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background-color .15s, color .15s, box-shadow .15s, transform .05s;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible, .link:focus-visible, input:focus-visible { outline: 2px solid var(--color-lavender); outline-offset: 2px; }
.btn-primary { background: var(--color-lavender); color: #fff; box-shadow: var(--shadow-subtle); }
.btn-primary:hover { background: var(--color-lavender-deep); }
.btn-register { background: var(--color-iris); color: #fff; padding: 6px 14px; box-shadow: var(--shadow-subtle); }
.btn-register:hover { background: #8570fb; }
.btn-ghost { background: transparent; color: var(--color-graphite); }
.btn-ghost:hover { background: var(--color-mist); color: var(--color-carbon); }
.btn-outline { background: #fff; color: var(--color-carbon); box-shadow: var(--shadow-subtle-2); }
.btn-outline:hover { background: var(--color-linen); }
.btn-danger { background: #fff; color: #c0392b; box-shadow: var(--shadow-subtle-2); }
.btn-danger:hover { background: #fff5f4; }
.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn[disabled] { opacity: .55; cursor: default; }
.link { font-weight: 500; font-size: 14px; text-decoration: none; padding: 6px 12px; }
.link:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* Nav */
.nav { padding: 16px 0; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 17px; letter-spacing: -0.4px; text-decoration: none; }
.brand-mark { width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(135deg, var(--color-sky), var(--color-lavender)); display: grid; place-items: center; }
.nav-pill {
  display: none; align-items: center; gap: 2px; padding: 4px;
  border: 1px solid var(--color-fog); border-radius: 9999px; background: #fff; box-shadow: var(--shadow-subtle-2);
}
.nav-pill a { font-size: 14px; font-weight: 500; text-decoration: none; padding: 6px 14px; border-radius: 9999px; color: var(--color-carbon); }
.nav-pill a:hover { background: var(--color-mist); }
.nav-actions { display: flex; align-items: center; gap: 4px; }
@media (min-width: 860px) { .nav-pill { display: inline-flex; } }

/* Chips & tags */
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px;
  border: 1px solid var(--color-fog); border-radius: 9999px; background: #fff;
  font-size: 14px; font-weight: 500; text-decoration: none; box-shadow: var(--shadow-subtle-2);
}
.chip-tag { background: #eaf1ff; color: var(--color-sky); font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 9999px; }
.tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 9999px; font-size: 12px; font-weight: 500; background: var(--color-mist); color: var(--color-graphite); }
.tag-mint { background: var(--color-mint-wash); color: #1f8a3b; }
.tag-lav { background: #efeefe; color: #5b55d6; }
.tag-amber { background: #fff4de; color: #9a6400; }
.tag-red { background: #ffecec; color: #b3261e; }

/* Hero */
.hero { padding: 48px 0 56px; text-align: center; }
.hero .display { max-width: 860px; margin: 28px auto 0; }
.hero .lede { max-width: 620px; margin: 20px auto 0; }
.hero-ctas { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--color-ash); }
.grad { background: linear-gradient(to right, var(--color-sky), var(--color-lavender)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Demo band */
.demo-band { background: linear-gradient(to right in oklab, var(--color-sky) 0%, var(--color-lavender) 100%); padding: 48px 0; }
@media (min-width: 900px) { .demo-band { padding: 72px 0; } }
.chat {
  max-width: 820px; margin: 0 auto; background: #fff; border-radius: 16px; box-shadow: var(--shadow-subtle-3);
  overflow: hidden;
}
.chat-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--color-fog); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-fog); }
.chat-title { margin-left: 8px; font-size: 13px; color: var(--color-ash); }
.chat-body { padding: 20px; display: grid; gap: 14px; }
@media (min-width: 720px) { .chat-body { padding: 28px 32px; } }
.msg-user { justify-self: end; max-width: 85%; background: var(--color-mist); padding: 10px 14px; border-radius: 16px 16px 4px 16px; font-size: 15px; }
.msg-ai { font-size: 15px; color: var(--color-carbon); }
.call {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--color-fog); border-radius: 12px;
  font-size: 13px; background: var(--color-linen); min-width: 0;
}
.call code { font-size: 12.5px; color: var(--color-carbon); white-space: nowrap; }
.call span.desc { color: var(--color-graphite); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.call .check { margin-left: auto; flex: none; width: 18px; height: 18px; border-radius: 50%; background: var(--color-mint-wash); display: grid; place-items: center; }
.live { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 12px; background: var(--color-mint-wash); color: #1f7a36; font-weight: 500; font-size: 14px; }

/* Features */
.grid-3 { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.feature { text-align: center; padding: 24px 16px; }
.icon-circle { width: 40px; height: 40px; border-radius: 50%; background: var(--color-lavender); color: #fff; display: grid; place-items: center; margin: 0 auto 16px; }
.feature p { margin: 8px 0 0; color: var(--color-graphite); }

.split { display: grid; gap: 32px; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; gap: 64px; } }
.split + .split { margin-top: 64px; }
.bullets { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.bullets li { display: flex; gap: 10px; align-items: flex-start; color: var(--color-graphite); }
.bullets li svg { flex: none; margin-top: 3px; }

.card { background: #fff; border: 1px solid var(--color-fog); border-radius: 16px; padding: 24px; }
@media (min-width: 720px) { .card { padding: 32px; } }
.tool-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tool-cloud code { font-size: 12px; padding: 5px 10px; border-radius: 9999px; background: var(--color-linen); border: 1px solid var(--color-fog); }
.tool-group + .tool-group { margin-top: 24px; }
.tool-group-title { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; }
.sw { width: 10px; height: 10px; border-radius: 50%; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { background: #fff; border: 1px solid var(--color-fog); border-radius: 16px; padding: 24px; }
.step-num { width: 28px; height: 28px; border-radius: 50%; background: var(--color-carbon); color: #fff; font-size: 13px; font-weight: 600; display: grid; place-items: center; margin-bottom: 16px; }
.step p { margin: 8px 0 0; color: var(--color-graphite); font-size: 15px; }

/* Pricing */
.pricing { display: grid; gap: 16px; grid-template-columns: 1fr; max-width: 880px; margin: 0 auto; }
@media (min-width: 760px) { .pricing { grid-template-columns: 1fr 1fr; } }
.tier { position: relative; background: #fff; border: 1px solid var(--color-fog); border-radius: 24px; padding: 32px 24px; display: flex; flex-direction: column; }
@media (min-width: 720px) { .tier { padding: 48px 32px; } }
.tier.featured { border-color: var(--color-lavender); box-shadow: 0 0 0 1px var(--color-lavender), var(--shadow-subtle-3); }
.tier .badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-lavender); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 9999px; }
.price { display: flex; align-items: baseline; gap: 6px; margin: 16px 0 4px; }
.price strong { font-size: 48px; line-height: 1; font-weight: 600; letter-spacing: -0.02em; }
.tier ul { list-style: none; padding: 0; margin: 24px 0 32px; display: grid; gap: 10px; flex: 1; }
.tier li { display: flex; gap: 10px; color: var(--color-graphite); font-size: 15px; }
.tier li svg { flex: none; margin-top: 4px; }
.tier .btn { width: 100%; }
.pricing-note { text-align: center; margin-top: 24px; color: var(--color-ash); font-size: 14px; }

/* Comparison table */
.table-wrap { max-width: 880px; margin: 48px auto 0; border: 1px solid var(--color-fog); border-radius: 24px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--color-fog); }
th { font-weight: 600; background: var(--color-linen); }
td:not(:first-child), th:not(:first-child) { text-align: center; width: 22%; }
tr:last-child td { border-bottom: 0; }
td { color: var(--color-graphite); }

.cmp td:not(:first-child), .cmp th:not(:first-child) { width: 20%; font-size: 13px; }
.table-wrap.cmp { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.cmp table { min-width: 620px; }
.cmp td:first-child { min-width: 180px; }
.cmp td:nth-child(2), .cmp th:nth-child(2) { background: #f6f5ff; }
td.yes { color: #1f8a3b; font-weight: 600; }
td.no { color: var(--color-ash); }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; border-top: 1px solid var(--color-fog); }
.faq details { border-bottom: 1px solid var(--color-fog); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 500; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--color-ash); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 12px 0 0; color: var(--color-graphite); }

/* CTA + footer */
.cta-band { text-align: center; }
.cta-band .hero-ctas { margin-top: 24px; }
footer { border-top: 1px solid var(--color-fog); padding: 40px 0; font-size: 14px; color: var(--color-graphite); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: flex-start; }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--color-carbon); }
.disclaimer { margin-top: 24px; font-size: 12px; color: var(--color-ash); }

/* Dashboard */
.dash { padding-top: 24px; padding-bottom: 64px; }
.dash-head { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.who { display: flex; align-items: center; gap: 12px; }
.avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-mist); }
.dash-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
.metrics { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 900px) { .metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.metric { background: #fff; border: 1px solid var(--color-fog); border-radius: 16px; padding: 14px 16px; min-width: 0; }
.metric .label { font-size: 12px; color: var(--color-ash); }
.metric .value { font-size: 22px; font-weight: 600; letter-spacing: -0.3px; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.metric .sub { font-size: 12px; color: var(--color-graphite); margin-top: 2px; overflow-wrap: anywhere; }
.panel { background: #fff; border: 1px solid var(--color-fog); border-radius: 16px; padding: 20px; box-shadow: var(--shadow-subtle-3); }
@media (min-width: 720px) { .panel { padding: 28px; } }
.panel h2 { font-size: 18px; font-weight: 600; margin: 0; }
.panel .desc { margin: 6px 0 0; color: var(--color-graphite); font-size: 15px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 16px; }
.input {
  flex: 1 1 260px; min-width: 0; font: 400 14px/1.4 var(--font); padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--color-fog); background: var(--color-mist); color: var(--color-carbon);
}
.input.mono { font-size: 13px; }
.howto { margin: 16px 0 0; padding-left: 20px; color: var(--color-graphite); display: grid; gap: 8px; font-size: 15px; }
.howto code { font-size: 12.5px; background: var(--color-mist); padding: 2px 6px; border-radius: 6px; word-break: break-all; }
.tabs { display: flex; gap: 20px; border-bottom: 1px solid var(--color-fog); margin-top: 16px; }
.tabs button { background: none; border: 0; padding: 8px 0; font: 500 14px var(--font); color: var(--color-ash); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button[aria-selected="true"] { color: var(--color-carbon); border-bottom-color: var(--color-lavender); }
.notice { border-radius: 12px; padding: 12px 16px; font-size: 14px; }
.notice-ok { background: var(--color-mint-wash); color: #1f7a36; }
.notice-warn { background: #fff4de; color: #7a5000; }
.danger { border-color: #f3d2cf; }
.hidden { display: none !important; }
.skeleton { height: 14px; border-radius: 6px; background: linear-gradient(90deg, #eee 25%, #e2e2e2 50%, #eee 75%); background-size: 200% 100%; animation: sh 1.2s infinite; }
@keyframes sh { to { background-position: -200% 0; } }

.field { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
.field .input { flex: none; width: 100%; }
textarea.input { resize: vertical; font-family: var(--font); }

/* Legal */
.legal { max-width: 760px; padding: 32px 16px 80px; margin: 0 auto; }
.legal h1 { font-size: 36px; letter-spacing: -0.6px; margin: 0 0 8px; }
.legal h2 { font-size: 20px; margin: 32px 0 8px; }
.legal p, .legal li { color: var(--color-graphite); }

/* Billing period toggle */
.billing-toggle { display: inline-flex; gap: 2px; padding: 4px; margin-top: 20px; border: 1px solid var(--color-fog); border-radius: 9999px; background: #fff; box-shadow: var(--shadow-subtle-2); }
.billing-toggle button { border: 0; background: transparent; border-radius: 9999px; padding: 6px 14px; font: 500 14px var(--font); color: var(--color-graphite); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.billing-toggle button[aria-pressed="true"] { background: var(--color-carbon); color: #fff; }
.service-toggle { margin: 16px 0 0; }
.billing-toggle .save { font-size: 11px; font-weight: 600; color: #1f8a3b; background: var(--color-mint-wash); padding: 1px 6px; border-radius: 9999px; }
.price .was { font-size: 14px; color: var(--color-ash); }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 4.5l3 3 3-3' fill='none' stroke='%23666' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; cursor: pointer; }