/* ============================================================================
   CorePanel, corepanel.app marketing site.
   Ink surfaces, one green accent, Inter for text, JetBrains Mono for
   technical labels. Fluid rem scale, no JS.
   ========================================================================== */

:root {
    --bg:        #0f1310;
    --bg-raise:  #151b16;
    --bg-deep:   #0b0e0c;
    --line:      rgb(163 184 148 / 0.13);
    --line-soft: rgb(163 184 148 / 0.07);
    --fg:        #e9f0e9;
    --fg-bright: #f6f9f5;
    --muted:     #94a394;
    --faint:     #5f6d5f;
    --accent:    #7fb93a;
    --accent-hi: #a6e15c;
    --ok:        #34d399;
    --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", ui-monospace, "SF Mono", "Roboto Mono", Menlo, Consolas, monospace;
    --ease: cubic-bezier(0.16, 0.84, 0.34, 1);
    --head-h: 4rem;
}

* { box-sizing: border-box; }

html {
    color-scheme: dark;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--head-h) + 1rem);
    font-size: clamp(100%, 93.5% + 0.44vw, 137.5%);
}

body {
    margin: 0;
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--fg);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

::selection { background: rgb(127 185 58 / 0.30); color: var(--fg-bright); }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 0.6em; color: var(--fg-bright); letter-spacing: -0.015em; }
h1 { font-size: 2.6rem; font-weight: 750; }
h2 { font-size: 1.9rem; font-weight: 700; }
h3 { font-size: 1.02rem; font-weight: 650; }
p  { margin: 0 0 1em; }

.wrap { max-width: 68rem; margin-inline: auto; padding-inline: 1.25rem; }

/* ── Header ──────────────────────────────────────────────────────────────── */

.site-head {
    position: sticky; top: 0; z-index: 50;
    background: rgb(15 19 16 / 0.86);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-soft);
}
.head-row { display: flex; align-items: center; gap: 1.5rem; height: var(--head-h); }
.mark img { height: 1.6rem; width: auto; }
.head-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.head-nav a { color: var(--muted); font-size: 0.92rem; font-weight: 520; transition: color 160ms var(--ease); }
.head-nav a:hover { color: var(--fg-bright); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 0.55rem; font-weight: 620; font-size: 0.92rem;
    padding: 0.55rem 1.05rem; border: 1px solid transparent; white-space: nowrap;
    transition: background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease), transform 160ms var(--ease);
}
.btn-lg { padding: 0.75rem 1.4rem; font-size: 1rem; }
.btn-primary { background: var(--accent); color: #10160a; }
.btn-primary:hover { background: var(--accent-hi); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); color: var(--fg); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-hi); }

/* ── Hero ────────────────────────────────────────────────────────────────── */

.hero {
    padding: 5.5rem 0 4.5rem;
    background:
        radial-gradient(52rem 30rem at 78% -10%, rgb(127 185 58 / 0.10), transparent 62%),
        radial-gradient(40rem 24rem at 8% 8%, rgb(127 185 58 / 0.05), transparent 60%),
        var(--bg);
    border-bottom: 1px solid var(--line-soft);
}
.hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 3.4rem; align-items: center; }
.eyebrow {
    font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--accent-hi); margin-bottom: 1.1rem;
}
.hero-sub { color: var(--muted); font-size: 1.08rem; max-width: 34rem; }
.hero-ctas { display: flex; gap: 0.8rem; margin: 1.7rem 0 1.9rem; flex-wrap: wrap; }
.hero-points { list-style: none; display: flex; gap: 1.6rem; padding: 0; margin: 0; flex-wrap: wrap; }
.hero-points li {
    color: var(--muted); font-size: 0.88rem; display: flex; align-items: center; gap: 0.5rem;
}
.hero-points li::before {
    content: ""; width: 0.45rem; height: 0.45rem; border-radius: 50%;
    background: var(--accent); flex: none;
}

/* Terminal visual */
.term {
    border: 1px solid var(--line);
    border-radius: 0.8rem;
    background: var(--bg-deep);
    box-shadow: 0 26px 60px -28px rgb(0 0 0 / 0.65), 0 0 0 1px rgb(127 185 58 / 0.05);
    overflow: hidden;
}
.term-bar {
    display: flex; align-items: center; gap: 0.42rem;
    padding: 0.62rem 0.9rem; border-bottom: 1px solid var(--line-soft);
}
.term-bar i { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--line); }
.term-bar span { margin-left: auto; font-family: var(--mono); font-size: 0.7rem; color: var(--faint); }
.term-body {
    margin: 0; padding: 1rem 1.1rem 1.2rem;
    font-family: var(--mono); font-size: 0.74rem; line-height: 1.75;
    color: var(--muted); overflow-x: auto; white-space: pre;
}
.t-p  { color: var(--faint); }
.t-d  { color: var(--accent); }
.t-i  { color: var(--fg-bright); }
.t-ok { color: var(--ok); font-weight: 600; }

/* ── Sections ────────────────────────────────────────────────────────────── */

.sec { padding: 4.8rem 0; }
.sec-band { background: var(--bg-deep); border-block: 1px solid var(--line-soft); }
.sec-head { max-width: 40rem; margin-bottom: 2.6rem; }
.kicker {
    display: flex; align-items: center; gap: 0.7rem;
    font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--accent-hi); margin-bottom: 1rem;
}
.kicker b { font-weight: 600; }
.kicker i { width: 2.2rem; height: 1px; background: var(--accent); opacity: 0.55; }
.lede { color: var(--muted); font-size: 1.02rem; }

.grid { display: grid; gap: 1rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--bg-raise);
    border: 1px solid var(--line-soft);
    border-radius: 0.75rem;
    padding: 1.35rem 1.4rem 1.1rem;
    transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}
.card:hover { border-color: rgb(127 185 58 / 0.35); transform: translateY(-2px); }
.card h3 { margin-bottom: 0.45em; }
.card p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* ── Install ─────────────────────────────────────────────────────────────── */

.install-box {
    border: 1px solid var(--line);
    border-radius: 0.8rem;
    background: var(--bg-deep);
    margin-bottom: 2rem;
}
.install-box pre {
    margin: 0; padding: 1.15rem 1.3rem;
    font-family: var(--mono); font-size: 0.9rem; line-height: 1.9;
    color: var(--fg-bright); overflow-x: auto;
}
.install-facts .fact {
    border-left: 2px solid rgb(127 185 58 / 0.4);
    padding: 0.15rem 0 0.15rem 1rem;
}
.install-facts b { display: block; color: var(--fg-bright); font-size: 0.95rem; margin-bottom: 0.25rem; }
.install-facts span { color: var(--muted); font-size: 0.88rem; }

/* ── CTA + footer ────────────────────────────────────────────────────────── */

.cta { padding: 4.6rem 0; }
.cta-row {
    display: flex; align-items: center; justify-content: space-between; gap: 2rem;
    background: linear-gradient(120deg, rgb(127 185 58 / 0.12), rgb(127 185 58 / 0.035));
    border: 1px solid rgb(127 185 58 / 0.25);
    border-radius: 1rem;
    padding: 2.3rem 2.5rem;
    flex-wrap: wrap;
}
.cta-copy h2 { margin-bottom: 0.3em; }
.cta-copy p { color: var(--muted); margin: 0; max-width: 30rem; }
.cta-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }

.site-foot { border-top: 1px solid var(--line-soft); padding: 2.6rem 0 3rem; }
.foot-row { display: grid; gap: 1.2rem; }
.foot-brand { display: flex; align-items: center; gap: 0.65rem; color: var(--muted); font-size: 0.92rem; }
.foot-nav { display: flex; gap: 1.4rem; }
.foot-nav a { color: var(--muted); font-size: 0.88rem; }
.foot-nav a:hover { color: var(--fg-bright); }
.foot-fine { color: var(--faint); font-size: 0.78rem; margin: 0; }

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 60rem) {
    .hero-grid { grid-template-columns: 1fr; gap: 2.4rem; }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 44rem) {
    h1 { font-size: 2.05rem; }
    h2 { font-size: 1.55rem; }
    .head-nav { display: none; }
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .hero { padding: 3.6rem 0 3.2rem; }
    .sec { padding: 3.4rem 0; }
    .cta-row { padding: 1.8rem 1.4rem; }
}

.install-note { margin: 0; padding: 0.7rem 1.3rem 0.9rem; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 0.85rem; }
.install-note a { color: var(--accent-hi); }

/* ── Mobile hardening ────────────────────────────────────────────────────── */

/* Grid/flex children must be allowed to shrink or a wide <pre> drags the whole
   page into horizontal scroll on phones. */
.hero-grid > *, .grid > *, .cta-row > * { min-width: 0; }
body { overflow-x: clip; }

@media (max-width: 44rem) {
    .head-row { gap: 0.9rem; }
    .mark img { height: 1.35rem; }
    .term-body { font-size: 0.68rem; }
    .install-box pre { font-size: 0.78rem; }
    .hero-ctas .btn { flex: 1 1 auto; }
    .hero-points { gap: 0.55rem 1.2rem; }
    .cta-actions { width: 100%; }
    .cta-actions .btn { flex: 1 1 auto; }
}