/* BEARSolve — Corporate Site
 * Black Engineering And Research, Solve.
 * Designed to read as a serious engineering firm, not a SaaS pitch.
 */
:root {
    --navy: #0f1729;
    --navy-light: #1a2744;
    --accent: #3b82f6;
    --accent-dark: #2563eb;
    --accent-glow: rgba(59,130,246,.12);
    --text: #1e293b;
    --text-mid: #475569;
    --text-light: #94a3b8;
    --bg: #fff;
    --bg-alt: #f8fafc;
    --border: #e2e8f0;
    --radius: 6px;
    --radius-lg: 12px;
    --max-w: 1080px;
    --serif: 'Iowan Old Style','Palatino Linotype','URW Palladio L','P052',Georgia,serif;
    --sans: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    --mono: ui-monospace,'SF Mono','Cascadia Mono','Roboto Mono',Menlo,Consolas,monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* NAV */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(15,23,41,.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.logo {
    font-size: 20px; font-weight: 700; color: #fff;
    letter-spacing: -.3px; font-family: var(--sans);
}
.logo .integral {
    font-family: var(--serif); font-style: italic; font-weight: 500;
    color: var(--accent); margin: 0 4px; font-size: 24px;
    vertical-align: -2px;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
    color: rgba(255,255,255,.7); font-size: 14px; font-weight: 500;
    text-decoration: none; transition: color .2s;
}
.nav-links a:hover { color: #fff; text-decoration: none; }
.mobile-toggle {
    display: none; background: none; border: none; color: #fff;
    font-size: 24px; cursor: pointer;
}

/* BUTTONS */
.btn {
    display: inline-block; padding: 11px 24px; border-radius: var(--radius);
    font-size: 14px; font-weight: 600; cursor: pointer; transition: all .2s;
    text-decoration: none; border: none; font-family: var(--sans);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); box-shadow: 0 6px 20px rgba(59,130,246,.25); }
.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover { background: var(--accent-glow); }
.btn-ghost { background: transparent; color: rgba(255,255,255,.85); border: 1px solid rgba(255,255,255,.2); }
.btn-ghost:hover { border-color: rgba(255,255,255,.5); color: #fff; }

/* HERO */
.hero {
    background: var(--navy); color: #fff;
    padding: 140px 24px 100px;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.hero-inner { max-width: 760px; margin: 0 auto; }
.hero-eyebrow {
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 2px; color: var(--accent); margin-bottom: 20px;
    font-family: var(--mono);
}
.hero h1 {
    font-family: var(--serif);
    font-size: 52px; font-weight: 500; line-height: 1.15;
    letter-spacing: -.5px; margin-bottom: 28px; color: #fff;
}
.hero h1 .integral {
    font-style: italic; color: var(--accent); margin: 0 6px;
}
.hero-sub {
    font-size: 18px; color: rgba(255,255,255,.72); line-height: 1.7;
    max-width: 620px; margin-bottom: 40px;
}
.hero-sub strong { color: #fff; font-weight: 600; }
.hero-meta {
    display: flex; gap: 32px; flex-wrap: wrap;
    padding-top: 32px; margin-top: 40px;
    border-top: 1px solid rgba(255,255,255,.08);
}
.hero-meta-item {
    font-size: 13px; color: rgba(255,255,255,.5);
}
.hero-meta-item strong {
    display: block; color: #fff; font-size: 14px; font-weight: 600;
    margin-bottom: 2px;
}

/* SECTIONS */
.section { padding: 90px 24px; }
.section-dark { background: var(--navy); color: #fff; }
.section-alt { background: var(--bg-alt); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }
.section-narrow { max-width: 760px; margin: 0 auto; }

.section-eyebrow {
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 2px; color: var(--accent); margin-bottom: 12px;
    font-family: var(--mono); text-align: center;
}
.section-title {
    font-family: var(--serif); font-size: 38px; font-weight: 500;
    text-align: center; margin-bottom: 16px; letter-spacing: -.4px;
    line-height: 1.2;
}
.section-title.left { text-align: left; }
.section-sub {
    font-size: 17px; color: var(--text-mid); text-align: center;
    max-width: 620px; margin: 0 auto 56px; line-height: 1.7;
}
.section-dark .section-sub { color: rgba(255,255,255,.65); }
.section-sub.left { text-align: left; margin-left: 0; }

/* PORTFOLIO CARDS */
.portfolio-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.portfolio-card {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    transition: all .25s; display: flex; flex-direction: column;
    min-height: 260px;
}
.portfolio-card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(59,130,246,.08);
    transform: translateY(-2px);
}
.section-dark .portfolio-card {
    background: var(--navy-light); border-color: rgba(255,255,255,.08);
}
.section-dark .portfolio-card:hover { border-color: var(--accent); }
.portfolio-status {
    display: inline-block; font-size: 11px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1.5px;
    padding: 4px 10px; border-radius: 4px; margin-bottom: 16px;
    font-family: var(--mono); width: fit-content;
}
.status-live { background: rgba(16,185,129,.12); color: #10b981; }
.status-beta { background: rgba(59,130,246,.12); color: var(--accent); }
.status-build { background: rgba(245,158,11,.12); color: #f59e0b; }
.portfolio-card h3 {
    font-family: var(--serif); font-size: 24px; font-weight: 500;
    margin-bottom: 8px; letter-spacing: -.3px;
}
.section-dark .portfolio-card h3 { color: #fff; }
.portfolio-card .tagline {
    font-size: 13px; color: var(--text-light); margin-bottom: 16px;
    font-style: italic; font-family: var(--serif);
}
.section-dark .portfolio-card .tagline { color: rgba(255,255,255,.5); }
.portfolio-card p {
    font-size: 14px; color: var(--text-mid); line-height: 1.65;
    margin-bottom: 20px; flex-grow: 1;
}
.section-dark .portfolio-card p { color: rgba(255,255,255,.7); }
.portfolio-card .card-link {
    font-size: 14px; font-weight: 600; color: var(--accent);
    margin-top: auto;
}
.portfolio-card .card-link.disabled {
    color: var(--text-light); cursor: default;
}
.section-dark .portfolio-card .card-link.disabled { color: rgba(255,255,255,.35); }

/* PROSE — for About / Portfolio detail / Legal */
.prose {
    max-width: 720px; margin: 0 auto;
    font-size: 17px; color: var(--text);
    line-height: 1.75;
}
.prose h2 {
    font-family: var(--serif); font-size: 28px; font-weight: 500;
    margin: 48px 0 16px; letter-spacing: -.3px;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
    font-family: var(--serif); font-size: 21px; font-weight: 500;
    margin: 32px 0 12px;
}
.prose p { margin-bottom: 18px; }
.prose ul, .prose ol { margin: 0 0 18px 24px; }
.prose li { margin-bottom: 8px; }
.prose strong { font-weight: 600; color: var(--text); }
.prose .lead {
    font-family: var(--serif); font-size: 22px; line-height: 1.55;
    color: var(--text); margin-bottom: 32px; font-weight: 400;
}
.prose .pull {
    font-family: var(--serif); font-style: italic;
    font-size: 19px; color: var(--text-mid);
    border-left: 3px solid var(--accent);
    padding: 8px 0 8px 24px; margin: 32px 0;
    line-height: 1.55;
}

/* CONTACT */
.contact-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
    max-width: 760px; margin: 0 auto;
}
.contact-block h3 {
    font-family: var(--serif); font-size: 20px; font-weight: 500;
    margin-bottom: 12px; color: var(--text);
}
.contact-block p {
    font-size: 15px; color: var(--text-mid); line-height: 1.7;
    margin-bottom: 4px;
}
.contact-block a { font-size: 15px; }
.contact-address {
    font-family: var(--mono); font-size: 14px;
    color: var(--text-mid); line-height: 1.7;
}

/* SIGN-OFF */
.signoff {
    text-align: center; padding: 60px 24px 24px;
    font-family: var(--serif); font-style: italic;
    color: var(--text-light); font-size: 15px;
}
.signoff .therefore {
    color: var(--accent); font-weight: 500; font-style: normal;
    margin: 0 4px;
}

/* FOOTER */
.footer {
    background: var(--navy); color: rgba(255,255,255,.6);
    padding: 60px 24px 32px;
    border-top: 1px solid rgba(255,255,255,.05);
}
.footer-inner {
    max-width: var(--max-w); margin: 0 auto;
    display: grid; grid-template-columns: 2fr 3fr; gap: 60px;
}
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand .footer-tag {
    font-family: var(--serif); font-style: italic;
    font-size: 14px; color: rgba(255,255,255,.55);
    margin-bottom: 20px;
}
.footer-brand .footer-addr {
    font-family: var(--mono); font-size: 12px;
    color: rgba(255,255,255,.4); line-height: 1.7;
}
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h4 {
    color: #fff; font-size: 12px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 14px;
    font-family: var(--mono);
}
.footer-col a {
    display: block; font-size: 13px; color: rgba(255,255,255,.5);
    padding: 4px 0; text-decoration: none;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
    max-width: var(--max-w); margin: 40px auto 0; padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,.06);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12px; color: rgba(255,255,255,.35);
    font-family: var(--mono);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero { padding: 110px 24px 70px; }
    .hero h1 { font-size: 36px; }
    .hero-sub { font-size: 16px; }
    .hero-meta { gap: 20px; }
    .section { padding: 64px 24px; }
    .section-title { font-size: 30px; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-links { grid-template-columns: repeat(3, 1fr); }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .nav-links {
        display: none; flex-direction: column; position: absolute;
        top: 64px; left: 0; right: 0; background: var(--navy);
        padding: 20px; gap: 16px;
    }
    .nav-links.open { display: flex; }
    .mobile-toggle { display: block; }
    .prose { font-size: 16px; }
    .prose .lead { font-size: 19px; }
}
@media (max-width: 480px) {
    .footer-links { grid-template-columns: 1fr; gap: 24px; }
    .hero h1 { font-size: 30px; }
}