/* Rhuar — Portal de Pagamentos. Folha de estilo única, sóbria e elegante. */

:root {
    --ink: #0b1220;
    --ink-soft: #1b2433;
    --muted: #5c6675;
    --muted-2: #8a93a3;
    --line: #e7e9ee;
    --line-strong: #d7dbe3;
    --bg: #ffffff;
    --bg-soft: #f7f8fa;
    --bg-ink: #0b1220;
    --accent: #0e7c66;
    --accent-deep: #0a5e4d;
    --accent-tint: #e9f5f1;
    --gold: #b7894b;
    --radius: 14px;
    --radius-sm: 10px;
    --maxw: 1120px;
    --shadow: 0 1px 2px rgba(11, 18, 32, 0.04), 0 8px 30px rgba(11, 18, 32, 0.06);
    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--sans);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.65;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.18rem; font-family: var(--sans); font-weight: 650; letter-spacing: 0; }

p { color: var(--ink-soft); }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { color: var(--accent); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--accent-deep); background: var(--accent-tint);
    padding: 6px 12px; border-radius: 999px;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-weight: 600; font-size: 0.98rem;
    padding: 12px 22px; border-radius: var(--radius-sm);
    border: 1px solid transparent; cursor: pointer; transition: all .18s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, 0.82); backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--ink); letter-spacing: -0.01em; }
.brand .mark {
    width: 30px; height: 30px; border-radius: 8px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
    display: grid; place-items: center; color: #fff; font-family: var(--serif); font-weight: 700; font-size: 1rem;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--ink-soft); font-weight: 500; font-size: 0.96rem; }
.nav-links a:hover { color: var(--ink); }
@media (max-width: 760px) { .nav-links .hide-sm { display: none; } }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(60% 50% at 75% -10%, rgba(14, 124, 102, 0.10), transparent 60%),
        radial-gradient(40% 40% at 0% 0%, rgba(183, 137, 75, 0.06), transparent 55%);
    pointer-events: none;
}
.hero-inner { position: relative; padding: 96px 0 84px; max-width: 820px; }
.hero h1 { margin: 20px 0 0; }
.hero .lead { font-size: 1.22rem; color: var(--muted); margin: 22px 0 0; max-width: 640px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 44px; color: var(--muted); font-size: 0.92rem; }
.hero-meta strong { color: var(--ink); font-weight: 650; }

/* Sections */
section { padding: 84px 0; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head p { font-size: 1.1rem; color: var(--muted); margin-top: 12px; }

/* Feature grid */
.grid { display: grid; gap: 22px; }
.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: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
    background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 28px; transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.card .ico {
    width: 42px; height: 42px; border-radius: 10px; background: var(--accent-tint); color: var(--accent-deep);
    display: grid; place-items: center; margin-bottom: 16px;
}
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; font-size: 0.98rem; color: var(--muted); }

/* Steps */
.soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { counter-reset: step; display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-left: 56px; }
.step::before {
    counter-increment: step; content: counter(step);
    position: absolute; left: 0; top: 0; width: 38px; height: 38px; border-radius: 50%;
    background: var(--bg-ink); color: #fff; display: grid; place-items: center;
    font-family: var(--serif); font-weight: 600;
}
.step h3 { margin: 4px 0 6px; }
.step p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Code block */
.code {
    background: var(--bg-ink); color: #e6edf3; border-radius: var(--radius);
    padding: 22px 24px; overflow-x: auto; font-family: var(--mono); font-size: 0.86rem; line-height: 1.7;
    border: 1px solid #1c2738;
}
.code .c { color: #7d8aa0; }
.code .k { color: #7ee2c7; }
.code .s { color: #e3b778; }

/* Security list */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink-soft); }
.checklist svg { flex: 0 0 auto; color: var(--accent); margin-top: 3px; }

/* CTA band */
.cta {
    background: var(--bg-ink); color: #fff; border-radius: 20px; padding: 56px;
    text-align: center; position: relative; overflow: hidden;
}
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 120% at 50% 0%, rgba(14,124,102,.35), transparent 60%); }
.cta h2 { color: #fff; position: relative; }
.cta p { color: #b8c0cd; position: relative; max-width: 540px; margin: 14px auto 28px; }
.cta .btn-primary { position: relative; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0; color: var(--muted); font-size: 0.92rem; }
.foot { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--ink); }

/* Docs layout */
.doc-shell { display: grid; grid-template-columns: 240px 1fr; gap: 48px; padding: 56px 0 96px; align-items: start; }
@media (max-width: 900px) { .doc-shell { grid-template-columns: 1fr; gap: 24px; } .doc-side { position: static; } }
.doc-side { position: sticky; top: 92px; }
.doc-side nav { display: grid; gap: 4px; }
.doc-side a { color: var(--muted); padding: 7px 12px; border-radius: 8px; font-size: 0.94rem; }
.doc-side a:hover { background: var(--bg-soft); color: var(--ink); }
.doc-side .grp { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted-2); margin: 18px 0 6px; padding: 0 12px; }
.doc-main { max-width: 760px; min-width: 0; }
.doc-main h2 { margin-top: 56px; padding-top: 8px; }
.doc-main h2:first-child { margin-top: 0; }
.doc-main h3 { margin-top: 32px; }
.doc-main p, .doc-main li { color: var(--ink-soft); }
.doc-main code:not(.code code) { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-family: var(--mono); font-size: 0.86em; color: var(--accent-deep); }
.doc-main table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.94rem; }
.doc-main th, .doc-main td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.doc-main th { color: var(--muted); font-weight: 600; font-size: 0.84rem; text-transform: uppercase; letter-spacing: 0.04em; }
.method { font-family: var(--mono); font-size: 0.78rem; font-weight: 700; padding: 2px 8px; border-radius: 5px; }
.m-get { background: #e6f0fb; color: #1c5fb3; }
.m-post { background: var(--accent-tint); color: var(--accent-deep); }
.callout { background: var(--accent-tint); border: 1px solid #cfe7e0; border-radius: var(--radius-sm); padding: 16px 18px; margin: 22px 0; color: var(--ink-soft); font-size: 0.95rem; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; background: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; border: 1px solid var(--line-strong); }