/* Signal design tokens — shared across all 3 pages */
    :root {
      --bg: #05050F; --surface: #0C0C1A; --card: #111120; --card-hover: #16162A;
      --border: #1C1C30; --border-light: #252540;
      --accent: #00CEB4; --accent-dim: rgba(0,206,180,.12);
      --accent-2: #FF3B72;
      --text: #EEEEFF; --text-muted: #6A6A90; --text-dim: #30304A;
      --font-ui: 'Inter', -apple-system, sans-serif;
      --font-display: 'Fraunces', Georgia, serif;
      --r-sm: 8px; --r-md: 12px; --r-lg: 20px;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { background: var(--bg); color: var(--text); font-family: var(--font-ui); line-height: 1.6; -webkit-font-smoothing: antialiased; }
    a { color: inherit; text-decoration: none; }

    /* NAV */
    .nav {
      position: sticky; top: 0; z-index: 200;
      background: rgba(5,5,15,.88); backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
      height: 64px; display: flex; align-items: center;
      padding: 0 48px; gap: 0;
    }
    .nav__logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; letter-spacing: -.3px; margin-right: 40px; }
    /* Matches invite email header: teal square + B (see src/lib/email/layout.ts) */
    .nav__mark { width: 30px; height: 30px; border-radius: 6px; background: #00CEB4; display: flex; align-items: center; justify-content: center; font-family: var(--font-ui); font-size: 14px; color: #05050F; font-weight: 700; flex-shrink: 0; }
    .nav__links { display: flex; gap: 4px; list-style: none; flex: 1; }
    .nav__links a { font-size: 14px; color: var(--text-muted); padding: 6px 12px; border-radius: var(--r-sm); transition: color .2s, background .2s; }
    .nav__links a:hover { color: var(--text); background: var(--card); }
    .nav__actions { display: flex; align-items: center; gap: 10px; }
    .btn-ghost, a.btn-ghost { background: none; border: none; color: var(--text-muted); font-size: 14px; cursor: pointer; padding: 7px 14px; border-radius: var(--r-sm); font-family: var(--font-ui); transition: color .2s, background .2s; display: inline-block; }
    .btn-ghost:hover { color: var(--text); background: var(--card); }
    .btn-primary, a.btn-primary { background: var(--accent); color: #05050F; font-size: 14px; font-weight: 600; padding: 8px 18px; border-radius: var(--r-md); border: none; cursor: pointer; font-family: var(--font-ui); transition: opacity .2s, transform .15s; white-space: nowrap; display: inline-block; }
    .btn-primary:hover { opacity: .9; transform: translateY(-1px); }
    .btn-outline, a.btn-outline { background: none; border: 1px solid var(--border-light); color: var(--text-muted); font-size: 14px; font-weight: 500; padding: 8px 18px; border-radius: var(--r-md); cursor: pointer; font-family: var(--font-ui); transition: all .2s; display: inline-block; }
    .btn-outline:hover, a.btn-outline:hover { border-color: var(--text-muted); color: var(--text); }

    /* VERTICAL HERO */
    .v-hero {
      padding: 100px 48px 80px; position: relative; overflow: hidden;
      border-bottom: 1px solid var(--border);
    }
    .v-hero::before {
      content: ''; position: absolute; top: -200px; right: -100px;
      width: 700px; height: 700px;
      background: radial-gradient(circle, rgba(0,206,180,.07) 0%, transparent 60%);
      pointer-events: none;
    }
    .v-hero__breadcrumb { font-size: 13px; color: var(--text-dim); margin-bottom: 24px; }
    .v-hero__breadcrumb a { color: var(--text-muted); }
    .v-hero__breadcrumb a:hover { color: var(--accent); }
    .v-hero__tag {
      display: inline-flex; align-items: center; gap: 8px;
      background: var(--card); border: 1px solid var(--border-light);
      border-radius: 100px; padding: 5px 14px;
      font-size: 11px; color: var(--accent); letter-spacing: .8px;
      text-transform: uppercase; font-weight: 600; margin-bottom: 28px;
    }
    .v-hero__h1 { font-family: var(--font-display); font-size: clamp(42px, 5.5vw, 68px); font-weight: 600; line-height: 1.07; letter-spacing: -1px; max-width: 700px; margin-bottom: 22px; }
    .v-hero__h1 em { font-style: italic; color: var(--accent); }
    .v-hero__sub { font-size: 18px; color: var(--text-muted); max-width: 560px; line-height: 1.75; margin-bottom: 40px; }
    .v-hero__cta { display: flex; gap: 12px; }
    .btn-lg { font-size: 15px !important; padding: 12px 26px !important; border-radius: 14px !important; }

    /* Stats row */
    .stats-row { display: flex; gap: 48px; padding: 40px 0 0; }
    .stat__num { font-family: var(--font-display); font-size: 36px; font-weight: 600; color: var(--accent); line-height: 1; margin-bottom: 4px; }
    .stat__label { font-size: 13px; color: var(--text-muted); }

    /* PAIN → SOLUTION two-col */
    .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
    .two-col--flip { direction: rtl; }
    .two-col--flip > * { direction: ltr; }

    /* Generic section */
    .section { padding: 96px 48px; max-width: 1200px; margin: 0 auto; }
    .section__label { font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: var(--accent); font-weight: 600; margin-bottom: 14px; }
    .section__h2 { font-family: var(--font-display); font-size: clamp(30px, 4vw, 46px); font-weight: 600; line-height: 1.15; letter-spacing: -.4px; margin-bottom: 14px; }
    .section__sub { font-size: 16px; color: var(--text-muted); line-height: 1.75; margin-bottom: 40px; }

    /* Pain points list */
    .pain-list { display: flex; flex-direction: column; gap: 20px; }
    .pain-item { display: flex; gap: 14px; align-items: flex-start; }
    .pain-item__icon { width: 36px; height: 36px; border-radius: 9px; background: rgba(255,59,114,.1); border: 1px solid rgba(255,59,114,.2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; }
    .pain-item__h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
    .pain-item__p { font-size: 13.5px; color: var(--text-muted); line-height: 1.6; }

    /* Solution items */
    .solution-list { display: flex; flex-direction: column; gap: 20px; }
    .solution-item { display: flex; gap: 14px; align-items: flex-start; }
    .solution-item__icon { width: 36px; height: 36px; border-radius: 9px; background: var(--accent-dim); border: 1px solid rgba(0,206,180,.2); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; }
    .solution-item__h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
    .solution-item__p { font-size: 13.5px; color: var(--text-muted); line-height: 1.6; }

    /* Workflow block — chat transcript style */
    .workflow-card { background: var(--card); border: 1px solid var(--border-light); border-radius: var(--r-lg); padding: 28px; }
    .workflow-card__label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-dim); margin-bottom: 16px; }
    .chat-ex { display: flex; flex-direction: column; gap: 10px; }
    .chat-ex .msg { padding: 9px 13px; border-radius: 9px; font-size: 12px; line-height: 1.5; max-width: 88%; }
    .chat-ex .msg.ai { background: var(--surface); border: 1px solid var(--border); color: #AAAACC; border-radius: 9px 9px 9px 2px; }
    .chat-ex .msg.user { background: var(--accent-dim); border: 1px solid rgba(0,206,180,.18); color: #B0FFE8; border-radius: 9px 9px 2px 9px; align-self: flex-end; }
    .chat-ex .msg.ai .hi { color: var(--accent); font-weight: 600; }

    /* Workflow steps */
    .workflow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 48px; }
    .wf-step { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 24px; }
    .wf-step__num { font-family: var(--font-display); font-size: 32px; color: var(--accent); opacity: .4; margin-bottom: 12px; line-height: 1; }
    .wf-step__h3 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
    .wf-step__p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

    /* Quote/CTA strip */
    .quote-strip {
      background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
      padding: 80px 48px; text-align: center;
    }
    .quote-strip__q { font-family: var(--font-display); font-size: clamp(22px, 3vw, 32px); font-style: italic; max-width: 720px; margin: 0 auto 28px; line-height: 1.5; }
    .quote-strip__meta { font-size: 13px; color: var(--text-muted); }

    /* CTA band */
    .cta-band { background: linear-gradient(160deg, var(--surface) 0%, rgba(0,206,180,.04) 100%); border-top: 1px solid var(--border); padding: 80px 48px; text-align: center; }
    .cta-band__h2 { font-family: var(--font-display); font-size: clamp(32px, 4.5vw, 52px); font-weight: 600; line-height: 1.1; letter-spacing: -.5px; max-width: 560px; margin: 0 auto 20px; }
    .cta-band__sub { font-size: 17px; color: var(--text-muted); margin-bottom: 36px; }
    .cta-band__actions { display: flex; gap: 12px; justify-content: center; }

    /* Footer */
    .footer { padding: 56px 48px 36px; border-top: 1px solid var(--border); }
    .footer__bottom { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: var(--text-dim); padding-top: 32px; border-top: 1px solid var(--border); }
    .footer__links { display: flex; gap: 24px; }
    .footer__links a { font-size: 13px; color: var(--text-muted); }
    .footer__links a:hover { color: var(--text); }

    /* Login Modal */
    .overlay { position: fixed; inset: 0; z-index: 500; background: rgba(0,0,0,.75); backdrop-filter: blur(10px); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity .25s; }
    .overlay.open { opacity: 1; pointer-events: all; }
    .modal { background: var(--surface); border: 1px solid var(--border-light); border-radius: 24px; padding: 40px; width: 400px; box-shadow: 0 40px 100px rgba(0,0,0,.6); position: relative; }
    .modal__close { position: absolute; top: 14px; right: 14px; background: var(--card); border: 1px solid var(--border); border-radius: var(--r-sm); width: 30px; height: 30px; cursor: pointer; color: var(--text-muted); font-size: 16px; display: flex; align-items: center; justify-content: center; }
    .modal h2 { font-family: var(--font-display); font-size: 28px; margin-bottom: 6px; }
    .modal p { font-size: 14px; color: var(--text-muted); margin-bottom: 28px; }
    .field { margin-bottom: 14px; }
    .field label { font-size: 12px; font-weight: 500; color: var(--text-muted); display: block; margin-bottom: 5px; }
    .field input { width: 100%; background: var(--card); border: 1px solid var(--border); border-radius: var(--r-md); padding: 10px 13px; font-size: 14px; color: var(--text); font-family: var(--font-ui); outline: none; transition: border-color .2s; }
    .field input:focus { border-color: var(--accent); }
    .modal__submit { margin-top: 20px; }
    .modal__submit .btn-primary { width: 100%; padding: 12px; font-size: 15px; border-radius: 12px; }
    .modal__footer { text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-muted); }
    .modal__footer a { color: var(--accent); }

    @media (max-width: 900px) {
      .two-col { grid-template-columns: 1fr; gap: 40px; }
      .two-col--flip { direction: ltr; }
      .workflow-steps { grid-template-columns: 1fr; }
      .stats-row { flex-wrap: wrap; gap: 28px; }
      .nav__links { display: none; }
      .v-hero { padding: 64px 24px 48px; }
      .section { padding: 64px 24px; }
    }