/* Stratus Support — brand: Raleway 600 / Nanum Gothic 800, #1DB6F9, #00FF87 */
:root {
  --blue: #1db6f9;
  --blue-ink: #0a78b3;
  --green: #00ff87;
  --green-ink: #00995a;
  --grad: linear-gradient(135deg, #39c6f4 0%, #9cffac 100%);
  --navy: #0b1626;
  --navy-2: #12223a;
  --ink: #142033;
  --muted: #55627a;
  --line: #e3e8f0;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(11, 22, 38, .08);
  --max: 1160px;
  --head: "Raleway", system-ui, sans-serif;
  --body: "Nanum Gothic", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--body); color: var(--ink); background: var(--bg); line-height: 1.65; font-size: 17px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--blue-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--head); font-weight: 700; line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 100; border-radius: 8px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5em; font-family: var(--head); font-weight: 700; font-size: 1rem; padding: .9em 1.5em; border-radius: 999px; border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s; text-decoration: none !important; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--grad); color: var(--navy); box-shadow: 0 8px 24px rgba(29, 182, 249, .35); }
.btn-ghost { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.08); }
.btn-outline { border-color: var(--blue-ink); color: var(--blue-ink); background: #fff; }
.btn-outline:hover { background: var(--bg-soft); }
.btn-block { width: 100%; justify-content: center; }

/* Header */
.topbar { background: var(--navy); color: #c9d6ea; font-size: .88rem; }
.topbar .container { display: flex; justify-content: space-between; gap: 12px; padding-top: 7px; padding-bottom: 7px; flex-wrap: wrap; }
.topbar a { color: #fff; }
.topbar .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--green); margin-right: 6px; box-shadow: 0 0 0 3px rgba(0,255,135,.2); }
header.site { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
header.site .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-family: var(--head); font-weight: 700; font-size: 1.25rem; text-decoration: none !important; }
.brand img { width: 42px; height: 42px; }
.brand span { color: var(--blue-ink); }
nav.main ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; align-items: center; }
nav.main a { color: var(--ink); font-family: var(--head); font-weight: 600; padding: 8px 12px; border-radius: 8px; }
nav.main a:hover, nav.main a[aria-current="page"] { background: var(--bg-soft); text-decoration: none; color: var(--blue-ink); }
nav.main .btn { margin-left: 8px; padding: .65em 1.2em; color: var(--navy); }
nav.main .btn:hover { background: var(--grad); color: var(--navy); }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .2s; }

@media (max-width: 1080px) {
  .menu-toggle { display: block; }
  nav.main { position: absolute; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); display: none; box-shadow: var(--shadow); }
  nav.main.open { display: block; }
  nav.main ul { flex-direction: column; align-items: stretch; padding: 12px 20px 20px; }
  nav.main a { display: block; padding: 12px; }
  nav.main .btn { margin: 8px 0 0; justify-content: center; }
}

/* Hero */
.hero { position: relative; overflow: hidden; background: radial-gradient(1200px 500px at 85% -10%, rgba(29,182,249,.35), transparent 60%), radial-gradient(800px 400px at 0% 110%, rgba(0,255,135,.18), transparent 60%), var(--navy); color: #fff; padding: 90px 0 100px; }
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 .hl { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.2rem; color: #c9d6ea; max-width: 38em; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 22px; }
.eyebrow { display: inline-block; font-family: var(--head); font-weight: 700; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--green-ink); margin-bottom: 14px; }
.hero .eyebrow { color: var(--green); }
.checks { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: #c9d6ea; font-size: .95rem; }
.checks li::before { content: "✓"; color: var(--green); font-weight: 800; margin-right: 8px; }
.hero-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 20px; padding: 28px; backdrop-filter: blur(6px); }
.hero-card h3 { color: #fff; margin-bottom: 4px; }
.hero-card .sub { color: #9fb1cc; font-size: .95rem; margin-bottom: 18px; }
.status { display: grid; gap: 10px; }
.status div { display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,.05); border-radius: 10px; padding: 12px 14px; font-size: .95rem; }
.status b { font-family: var(--head); color: var(--green); }
.status .warn b { color: var(--blue); }
@media (max-width: 920px) { .hero .container { grid-template-columns: 1fr; } .hero { padding: 64px 0 72px; } }

.page-hero { background: radial-gradient(900px 400px at 90% -20%, rgba(29,182,249,.35), transparent 60%), var(--navy); color: #fff; padding: 72px 0 64px; }
.page-hero p { color: #c9d6ea; font-size: 1.15rem; max-width: 46em; }

/* Sections */
section.block { padding: 88px 0; }
section.soft { background: var(--bg-soft); }
.section-head { max-width: 760px; margin: 0 0 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--muted); font-size: 1.1rem; }

.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 920px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } section.block { padding: 64px 0; } }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: 0 1px 0 rgba(11,22,38,.03); transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card p { color: var(--muted); }
.card ul { padding-left: 1.1em; color: var(--muted); margin: 0; }
.card .more { font-family: var(--head); font-weight: 700; }
.icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(57,198,244,.15), rgba(156,255,172,.25)); margin-bottom: 16px; }
.icon svg { width: 26px; height: 26px; stroke: var(--blue-ink); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Stats strip */
.stats { background: var(--navy-2); color: #fff; padding: 40px 0; }
.stats .grid { text-align: center; }
.stats b { display: block; font-family: var(--head); font-size: 2.1rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats span { color: #9fb1cc; font-size: .95rem; }

/* Problem/solution */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.compare .card h3 { display: flex; gap: 10px; align-items: center; }
.compare .bad li::marker { content: "✕  "; color: #d14b4b; }
.compare .good li::marker { content: "✓  "; color: var(--green-ink); }
.compare li { margin-bottom: 8px; }
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } }

/* Steps */
.steps { counter-reset: step; }
.steps .card { position: relative; padding-top: 56px; }
.steps .card::before { counter-increment: step; content: counter(step); position: absolute; top: 20px; left: 28px; width: 28px; height: 28px; border-radius: 50%; background: var(--grad); color: var(--navy); font-family: var(--head); font-weight: 800; display: grid; place-items: center; font-size: .9rem; }

/* Pricing */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
@media (max-width: 920px) { .plans { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; } }
.plan { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 30px; position: relative; }
.plan.featured { border: 2px solid var(--blue); box-shadow: 0 18px 40px rgba(29,182,249,.18); }
.plan .tag { position: absolute; top: -13px; left: 30px; background: var(--grad); color: var(--navy); font-family: var(--head); font-weight: 800; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; }
.plan .price { font-family: var(--head); font-weight: 800; font-size: 2.6rem; color: var(--ink); line-height: 1; margin: 10px 0 4px; }
.plan .price small { font-size: 1rem; color: var(--muted); font-weight: 600; }
.plan .for { color: var(--muted); min-height: 3.2em; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 26px; flex: 1; }
.plan li { padding: 7px 0 7px 28px; position: relative; border-bottom: 1px dashed var(--line); font-size: .97rem; }
.plan li::before { content: "✓"; position: absolute; left: 4px; color: var(--green-ink); font-weight: 800; }
.plan li.inherit { font-weight: 700; color: var(--ink); }
.plan li.inherit::before { content: "★"; color: var(--blue-ink); }

table.rates { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
table.rates th, table.rates td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); }
table.rates th { background: var(--bg-soft); font-family: var(--head); }
table.rates td:last-child { font-family: var(--head); font-weight: 700; white-space: nowrap; }

/* Calculator */
.calc { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 32px; box-shadow: var(--shadow); }
@media (max-width: 820px) { .calc { grid-template-columns: 1fr; } }
.calc label { display: block; font-family: var(--head); font-weight: 700; margin: 0 0 8px; }
.calc .row { margin-bottom: 22px; }
.calc input[type=range] { width: 100%; accent-color: var(--blue); }
.seg { display: flex; flex-wrap: wrap; gap: 8px; }
.seg button { flex: 1; min-width: 110px; padding: 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg-soft); font-family: var(--head); font-weight: 700; cursor: pointer; color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
.calc-out { background: var(--navy); color: #fff; border-radius: 14px; padding: 28px; display: flex; flex-direction: column; justify-content: center; }
.calc-out .big { font-family: var(--head); font-weight: 800; font-size: 2.8rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.1; }
.calc-out p { color: #c9d6ea; margin: 6px 0 0; font-size: .95rem; }
.calc-out .btn { margin-top: 20px; align-self: flex-start; }

/* FAQ */
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px 22px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-family: var(--head); font-weight: 700; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--blue-ink); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; color: var(--muted); }

/* CTA band */
.cta-band { background: radial-gradient(700px 300px at 100% 0%, rgba(0,255,135,.2), transparent 60%), var(--navy); color: #fff; border-radius: 24px; padding: 52px; display: grid; grid-template-columns: 1.4fr .6fr; gap: 28px; align-items: center; }
.cta-band p { color: #c9d6ea; margin: 0; font-size: 1.1rem; }
.cta-band .actions { display: flex; flex-direction: column; gap: 10px; }
@media (max-width: 820px) { .cta-band { grid-template-columns: 1fr; padding: 36px 24px; } }

/* About */
.founder { display: grid; grid-template-columns: 340px 1fr; gap: 48px; align-items: center; }
.founder img { border-radius: 20px; box-shadow: var(--shadow); aspect-ratio: 1; object-fit: cover; }
@media (max-width: 820px) { .founder { grid-template-columns: 1fr; } .founder img { max-width: 320px; } }
.values .card h3 { display: flex; align-items: center; gap: 10px; }

/* Forms */
.form { display: grid; gap: 16px; }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form .two { grid-template-columns: 1fr; } }
.form label { font-family: var(--head); font-weight: 700; font-size: .95rem; display: block; margin-bottom: 6px; }
.form input, .form select, .form textarea { width: 100%; font: inherit; font-size: 1rem; padding: 12px 14px; border-radius: 10px; border: 1px solid #cdd6e3; background: #fff; color: var(--ink); }
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--blue); outline: 3px solid rgba(29,182,249,.25); }
.form textarea { min-height: 130px; resize: vertical; }
.form .hp { position: absolute; left: -5000px; }
.form .note { font-size: .88rem; color: var(--muted); }
.form-status { padding: 14px 16px; border-radius: 10px; display: none; }
.form-status.ok { display: block; background: #e6fff3; color: #05663e; border: 1px solid #a5f0cb; }
.form-status.err { display: block; background: #fff0f0; color: #8a1f1f; border: 1px solid #f3c1c1; }
.contact-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 32px; align-items: start; }
@media (max-width: 920px) { .contact-grid { grid-template-columns: 1fr; } }
.side-list { list-style: none; padding: 0; margin: 0; }
.side-list li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.side-list b { font-family: var(--head); display: block; }

/* Badges / trust */
.trust { display: flex; flex-wrap: wrap; gap: 10px 14px; justify-content: center; }
.trust span { font-family: var(--head); font-weight: 700; font-size: .92rem; color: var(--muted); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px; background: #fff; }

.prose { max-width: 760px; }
.prose h2 { font-size: 1.5rem; margin-top: 1.6em; }

/* Footer */
footer.site { background: var(--navy); color: #9fb1cc; padding: 64px 0 28px; margin-top: 0; font-size: .95rem; }
footer.site .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 820px) { footer.site .cols { grid-template-columns: 1fr 1fr; } }
footer.site h4 { color: #fff; font-size: 1rem; margin-bottom: 12px; }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li { margin-bottom: 8px; }
footer.site a { color: #c9d6ea; }
footer.site .brand { color: #fff; margin-bottom: 12px; }
footer.site .brand span b { color: var(--blue); }
footer.site .legal { border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .88rem; }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }
a.card { color: var(--ink); }
a.card:hover { text-decoration: none; }
a.card .more { color: var(--blue-ink); }
@media (max-width: 640px) { .topbar .container > span:last-child { display: none; } }
.brand.stacked { flex-direction: column; align-items: center; gap: 6px; text-align: center; width: max-content; }
.brand.stacked img { width: 72px; height: 72px; }
.brand.stacked span { color: var(--blue); font-size: 1.2rem; }

/* Security checklist */
.checklist fieldset { border: 0; padding: 0; margin: 0 0 22px; }
.checklist legend { font-family: var(--head); font-weight: 700; font-size: 1.1rem; margin-bottom: 8px; }
.checklist label { display: flex; gap: 12px; align-items: flex-start; padding: 10px 12px; border-radius: 10px; cursor: pointer; }
.checklist label:hover { background: var(--bg-soft); }
.checklist input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--green-ink); flex: none; }
.score-card { position: sticky; top: 96px; }
.score { font-family: var(--head); font-weight: 800; display: flex; align-items: baseline; gap: 6px; }
.score b { font-size: 3.4rem; line-height: 1; }
.score span { color: var(--muted); font-size: 1.2rem; }
.meter { height: 10px; background: var(--bg-soft); border-radius: 99px; overflow: hidden; margin: 14px 0 18px; }
.meter i { display: block; height: 100%; width: 0; background: var(--grad); transition: width .3s; }
footer.site .cols > div { min-width: 0; }
footer.site a { overflow-wrap: anywhere; }
@media (max-width: 480px) { footer.site .cols { grid-template-columns: 1fr; } }

/* Articles */
.article { font-size: 1.08rem; }
.article h2 { margin-top: 1.8em; }
.article ul { padding-left: 1.2em; }
.article li { margin-bottom: .6em; }
@media (max-width: 640px) { a.card[style*="grid-template-columns"] { grid-template-columns: 1fr !important; } }

.brand span, nav.main a { white-space: nowrap; }

.users-row { display: flex; gap: 14px; align-items: center; }
.users-row input[type=range] { flex: 1; min-width: 0; }
.users-row input[type=number] { width: 6.5em; font: inherit; font-family: var(--head); font-weight: 700; padding: 8px 10px; border-radius: 10px; border: 1px solid #cdd6e3; text-align: center; }