/* B'IYUN AI — site styles. Brand blue #6FAEED (Joseph, 2026-11-04). */
:root {
  --blue: #6FAEED;          /* brand */
  --blue-soft: #E8F2FC;     /* tints, backgrounds */
  --blue-mid: #B9D8F6;
  --blue-deep: #1F5E9E;     /* text-safe blue on white (AA) */
  --ink: #0B0F14;           /* near-black, matches the logo linework; also text ON brand blue */
  --ink-2: #44546A;
  --paper: #FFFFFF;
  --paper-2: #F6F9FC;
  --line: #DCE6F1;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(13,27,42,.06), 0 8px 28px rgba(13,27,42,.07);
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
[id] { scroll-margin-top: 84px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-deep); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 800; letter-spacing: .02em; font-size: 19px; }
.brand-mark { width: 40px; height: 40px; display: block; }
.brand-mark img { width: 100%; height: 100%; }
.brand span.ai { color: var(--blue-deep); }
.nav { display: flex; gap: 6px; align-items: center; }
.nav a { text-decoration: none; color: var(--ink-2); font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 10px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: var(--blue-soft); }
.nav a.nav-cta { background: var(--blue); color: var(--ink); }
.nav a.nav-cta:hover { background: #5FA2E6; }
@media (max-width: 640px) { .nav a:not(.nav-cta) { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px; border-radius: 12px; border: 0; cursor: pointer;
  font: inherit; font-weight: 700; font-size: 16px; text-decoration: none;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: var(--ink); box-shadow: 0 6px 18px rgba(111,174,237,.45); }
.btn-primary:hover { background: #5FA2E6; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #1B2E44; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--blue); }
.arrow { transition: transform .2s ease; }

/* ---------- type ---------- */
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(38px, 6vw, 64px); font-weight: 800; }
h2 { font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 640px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--blue-deep); margin-bottom: 14px;
}
.hl { background: linear-gradient(transparent 62%, var(--blue-mid) 62%); }

/* ---------- sections ---------- */
section { padding: 88px 0; }
section.tight { padding: 64px 0; }
.bg-soft { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (max-width: 600px) { section { padding: 60px 0; } }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto auto; width: 720px; height: 720px;
  background: radial-gradient(closest-side, rgba(111,174,237,.35), rgba(111,174,237,0));
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero.sub { padding: 64px 0 56px; }

.crumbs { font-size: 14px; color: var(--ink-2); margin-bottom: 22px; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--blue-deep); text-decoration: underline; }
.crumbs .sep { margin: 0 8px; opacity: .5; }

/* ---------- the fork (choose your path) ---------- */
.fork-q { font-size: 15px; font-weight: 700; color: var(--ink-2); margin: 48px 0 16px; letter-spacing: .02em; }
.fork { display: grid; grid-template-columns: 1.35fr 1fr; gap: 20px; }
@media (max-width: 820px) { .fork { grid-template-columns: 1fr; } }
.path {
  position: relative; display: flex; flex-direction: column; gap: 14px;
  padding: 34px; border-radius: 24px; text-decoration: none; color: var(--ink);
  border: 1.5px solid var(--line); background: var(--paper); box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  min-height: 300px;
}
.path:hover { transform: translateY(-4px); box-shadow: 0 2px 4px rgba(13,27,42,.06), 0 18px 44px rgba(13,27,42,.12); border-color: var(--blue); }
.path:hover .arrow { transform: translateX(5px); }
.path.primary { background: var(--blue); border-color: var(--blue); }
.path .tag {
  align-self: flex-start; font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
  padding: 6px 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-deep);
}
.path.primary .tag { background: rgba(255,255,255,.55); color: var(--ink); }
.path .say { font-size: clamp(26px, 3vw, 34px); font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.path p { margin: 0; color: var(--ink-2); font-size: 17px; }
.path.primary p { color: #10263C; }
.path .go { margin-top: auto; font-weight: 800; display: flex; align-items: center; gap: 10px; font-size: 17px; }
@media (max-width: 600px) { .path { padding: 26px; min-height: 0; } }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card p { margin: 0; color: var(--ink-2); font-size: 16px; }
.icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--blue-soft); color: var(--blue-deep);
  display: grid; place-items: center; margin-bottom: 16px;
}
.icon svg { width: 22px; height: 22px; }
.section-head { max-width: 680px; margin-bottom: 40px; }

/* ---------- steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: 26px; border-radius: var(--radius); background: var(--paper); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
  background: var(--blue); color: var(--ink); font-weight: 800; margin-bottom: 14px;
}
.step p { margin: 0; color: var(--ink-2); font-size: 16px; }

/* ---------- meaning strip ---------- */
.meaning { display: grid; grid-template-columns: auto 1fr; gap: 36px; align-items: center; }
.meaning .word { font-size: clamp(48px, 7vw, 84px); font-weight: 800; letter-spacing: -.03em; color: var(--blue); line-height: 1; }
.meaning .word small { display: block; font-size: 16px; letter-spacing: .02em; color: var(--ink-2); font-weight: 600; margin-top: 10px; }
@media (max-width: 700px) { .meaning { grid-template-columns: 1fr; gap: 18px; } }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: center; }
.portrait {
  width: 100%; height: auto; aspect-ratio: 1; border-radius: 50%; object-fit: cover;
  box-shadow: 0 0 0 8px var(--blue-soft), 0 0 0 10px var(--blue), var(--shadow);
}
@media (max-width: 760px) { .about { grid-template-columns: 1fr; } .portrait { max-width: 220px; } }

/* ---------- contact choice ---------- */
.choice { display: grid; grid-template-columns: 1fr 1.25fr; gap: 20px; align-items: start; }
@media (max-width: 860px) { .choice { grid-template-columns: 1fr; } }
.choice .panel { border-radius: 24px; padding: 32px; border: 1.5px solid var(--line); background: var(--paper); }
.choice .panel.book { background: var(--blue); border-color: var(--blue); }
.choice .panel.book p { color: #16304B; }
.choice .or { font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 8px; }
.choice .panel.book .or { color: #16304B; }

form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { form .row { grid-template-columns: 1fr; } }
label { display: block; font-size: 14px; font-weight: 700; margin: 0 0 6px; }
label .opt { font-weight: 500; color: var(--ink-2); }
.field { margin-bottom: 16px; }
input, textarea, select {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink);
  padding: 12px 14px; border-radius: 12px; border: 1.5px solid var(--line); background: #fff;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(111,174,237,.25); }
textarea { min-height: 140px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.form-note { font-size: 14px; color: var(--ink-2); margin-top: 12px; }
.form-status { margin-top: 14px; font-weight: 700; }
.form-status.ok { color: #17663A; }
.form-status.err { color: #A3261B; }

/* ---------- cross-link / cta band ---------- */
.band {
  border-radius: 28px; padding: 48px; background: var(--ink); color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.band h2 { margin: 0 0 6px; }
.band p { margin: 0; color: #B8C6D6; }
@media (max-width: 600px) { .band { padding: 32px 24px; } }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; }
.checks li::before {
  content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%;
  background: var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B0F14' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat;
}

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: 15px; color: var(--ink-2); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.site-footer a { color: var(--ink-2); text-decoration: none; margin-left: 18px; }
.site-footer a:first-child { margin-left: 0; }
.site-footer a:hover { color: var(--ink); }

/* ---------- wordmark band ---------- */
.wordmark-band { background: var(--blue); padding: 72px 0; text-align: center; }
.wordmark-band img { width: min(640px, 92%); margin: 0 auto; }
.wordmark-band .tagline { margin-top: 18px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; font-size: 14px; }
.wordmark-band p.lead { margin: 22px auto 0; color: #10263C; text-align: center; }

/* ---------- person chip ---------- */
.person { display: inline-flex; align-items: center; gap: 14px; margin-top: 20px; padding: 10px 18px 10px 10px; border-radius: 999px; background: var(--paper); border: 1px solid var(--line); }
.person img { width: 56px; height: 56px; border-radius: 50%; }
.person strong { display: block; font-size: 16px; line-height: 1.3; }
.person span { font-size: 14px; color: var(--ink-2); }