/* FinFlow website: one stylesheet, no web fonts, no JavaScript. */

:root {
  --bg: #fbfbf9;
  --surface: #ffffff;
  --ink: #0e1726;
  --muted: #5b6474;
  --line: #e6e6e1;
  --accent: #0d7a6b;
  --accent-ink: #ffffff;
  --glow: rgba(13, 122, 107, 0.13);
  --ring: rgba(13, 122, 107, 0.16);
  --band: #0e1726;
  --band-ink: #f4f6f8;
  --warn-bg: #fdf0e6;
  --warn-ink: #8a3b0c;
  --radius: 16px;
  --max: 68rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1017;
    --surface: #121a24;
    --ink: #e8edf2;
    --muted: #97a3b3;
    --line: #223041;
    --accent: #3ccfb4;
    --accent-ink: #06201b;
    --glow: rgba(60, 207, 180, 0.12);
    --ring: rgba(60, 207, 180, 0.18);
    --band: #121a24;
    --band-ink: #e8edf2;
    --warn-bg: #3a2414;
    --warn-ink: #ffc59e;
    color-scheme: dark;
  }
}

*,
*::before,
*::after { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(60rem 36rem at 88% -8%, var(--glow), transparent 65%), var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main { flex: 1; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }

/* Header */
.bar { display: flex; align-items: center; justify-content: space-between; padding-block: 1.5rem; }
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 1.2rem; font-weight: 700; letter-spacing: -0.02em; text-decoration: none;
}
.brand svg { width: 1.8rem; height: 1.8rem; }
.mark-bg { fill: var(--accent); }
.mark-wave { stroke: var(--accent-ink); }

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.85rem 1.5rem; border: 0; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 10px 28px -10px var(--accent); }
.button span { transition: transform 0.15s ease; }
.button:hover span { transform: translateX(3px); }
.button.small { padding: 0.55rem 1.1rem; font-size: 0.95rem; }

/* Typography */
h1 {
  margin: 0 0 1.5rem; max-width: 14ch;
  font-size: clamp(2.6rem, 7.5vw, 5.25rem); line-height: 1.02; letter-spacing: -0.04em; font-weight: 700;
  text-wrap: balance;
}
h1 em { font-style: normal; color: var(--accent); }
.lead { margin: 0 0 2.25rem; max-width: 34rem; text-wrap: pretty; color: var(--muted); font-size: clamp(1.1rem, 2vw, 1.3rem); }

/* Landing page */
.hero { padding-block: clamp(4rem, 12vw, 8.5rem) clamp(3rem, 8vw, 6rem); }

.services {
  display: grid; gap: 1rem; margin: 0; padding: 0; list-style: none;
}
@media (min-width: 48rem) { .services { grid-template-columns: repeat(3, 1fr); } }
.services li {
  padding: 1.75rem 1.5rem 2rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.num {
  display: block; margin-bottom: 2.75rem; color: var(--accent);
  font: 600 0.85rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.06em;
}
.services h2 { margin: 0; font-size: 1.3rem; line-height: 1.25; letter-spacing: -0.02em; font-weight: 650; }
.services p { margin: 0.5rem 0 0; color: var(--muted); font-size: 0.975rem; }

.band {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem;
  margin-block: clamp(3rem, 8vw, 6rem); padding: clamp(1.75rem, 4vw, 2.5rem);
  background: var(--band); color: var(--band-ink);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.band p { display: flex; align-items: center; gap: 1rem; margin: 0; font-size: clamp(1.15rem, 2.4vw, 1.5rem); font-weight: 600; letter-spacing: -0.015em; line-height: 1.3; }
.band svg { flex: none; width: 2.25rem; height: 2.25rem; color: var(--accent); }

/* Sign-up page */
.split { display: grid; gap: 2.5rem; align-items: start; padding-block: clamp(3rem, 9vw, 6rem); }
@media (min-width: 52rem) { .split { grid-template-columns: 1fr 1.1fr; gap: 4rem; } }
.split h1 { font-size: clamp(2.4rem, 6vw, 4rem); }

.card {
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 16px 48px -24px rgba(14, 23, 38, 0.22);
}
.form { display: grid; gap: 1.1rem; }
.row { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
label { display: grid; gap: 0.4rem; font-size: 0.9rem; font-weight: 550; }
input {
  width: 100%; padding: 0.75rem 0.9rem;
  background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 10px;
  font: inherit; transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--ring); }
.form .button { margin-top: 0.5rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.notice {
  display: none; margin: 0; padding: 0.75rem 1rem; border-radius: 10px;
  background: var(--warn-bg); color: var(--warn-ink); font-size: 0.95rem;
}
.notice:target { display: block; }

/* Thank-you page */
.center { display: grid; justify-items: center; align-content: center; text-align: center; padding-block: clamp(5rem, 14vw, 9rem); }
.center h1 { max-width: none; font-size: clamp(2.2rem, 6vw, 3.75rem); }
.check {
  display: grid; place-items: center; width: 3.5rem; height: 3.5rem; margin-bottom: 1.75rem;
  border-radius: 50%; background: var(--ring); color: var(--accent);
}
.check svg { width: 1.6rem; height: 1.6rem; }
.back { color: var(--muted); font-weight: 500; text-decoration: none; }
.back:hover { color: var(--ink); }

/* Footer */
.foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  padding-block: 1.75rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem;
}
.foot a { text-decoration: none; }
.foot a:hover { color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}