/* ============================================================
   BILA — shared site styles (marketing pages: landing, demo request)
   Loaded before any page-specific <style> block.
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg: #0f1117;
    --bg2: #171b24;
    --bg3: #1e2330;
    --bg4: #252b3b;
    --border: rgba(255,255,255,0.08);
    --border2: rgba(255,255,255,0.14);
    --text: #e8eaf0;
    --text2: #8b92a8;
    --text3: #555e73;
    --accent: #4f8ef7;
    --accent2: #3b7de8;
    --accent-dim: rgba(79,142,247,0.12);
    --green: #22c55e;
    --green-dim: rgba(34,197,94,0.12);
    --orange: #f59e0b;
    --red: #ef4444;
    --red-dim: rgba(239,68,68,0.12);
    --radius: 14px;
    --radius-sm: 8px;
}
html { scroll-behavior: smooth; }
body {
    font-family: 'Sora', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
img { max-width: 100%; display: block; }

/* NAV */
.nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(15,17,23,0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 0;
}
.logo-mark { font-family: 'DM Mono', monospace; font-size: 20px; font-weight: 500; color: var(--accent); letter-spacing: -0.5px; }
.logo-sub { font-size: 9px; color: var(--text3); text-transform: uppercase; letter-spacing: 1.6px; margin-top: 1px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a:not(.btn) { font-size: 13.5px; color: var(--text2); transition: color .15s; }
.nav-links a:not(.btn):hover { color: var(--text); }

/* BUTTONS */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 20px; border-radius: var(--radius-sm);
    font-family: 'Sora', sans-serif; font-size: 14px; font-weight: 500;
    cursor: pointer; border: 1px solid transparent; transition: all .15s;
    white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-outline { background: transparent; border-color: var(--border2); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 13px 26px; font-size: 15px; }
.btn:disabled { opacity: .6; cursor: not-allowed; }

/* FORM CONTROLS (shared with request-demo page) */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block; font-size: 12px; color: var(--text2); margin-bottom: 7px;
    font-weight: 500; text-transform: uppercase; letter-spacing: 0.8px;
}
.form-label .opt { text-transform: none; color: var(--text3); font-weight: 400; letter-spacing: 0; }
.form-label.required::after { content: ' *'; color: var(--red); }
.form-input {
    width: 100%; padding: 11px 14px; background: var(--bg3);
    border: 1px solid var(--border2); border-radius: var(--radius-sm);
    color: var(--text); font-family: 'Sora', sans-serif; font-size: 14px;
    outline: none; transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }
.alert-error {
    background: var(--red-dim); color: var(--red); border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--radius-sm); padding: 11px 14px; font-size: 13px; margin-bottom: 20px;
}
.alert-success {
    background: var(--green-dim); color: var(--green); border: 1px solid rgba(34,197,94,0.2);
    border-radius: var(--radius-sm); padding: 11px 14px; font-size: 13px; margin-bottom: 20px;
}

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 40px 0 32px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-tag { font-size: 12px; color: var(--text3); margin-top: 4px; }
.footer-links { display: flex; gap: 22px; font-size: 12.5px; color: var(--text3); }
.footer-links a:hover { color: var(--text2); }

@media (max-width: 860px) {
    .nav-links { gap: 16px; }
    .nav-links a:not(.btn) { display: none; }
}