/* Software X: futurist, dark-only layer on top of Bootstrap 5.3. */

@font-face {
    font-family: 'Space Grotesk';
    src: url('../fonts/space-grotesk-latin-wght-normal.woff2') format('woff2');
    font-weight: 300 700;
    font-display: swap;
}

[data-bs-theme="dark"] {
    --sx-cyan: #22d3ee;
    --sx-violet: #a78bfa;
    --sx-line: rgba(148, 163, 184, 0.18);
    --sx-surface: rgba(148, 163, 184, 0.06);
    --sx-gradient: linear-gradient(100deg, var(--sx-cyan), var(--sx-violet));
    --sx-mono: ui-monospace, 'Cascadia Code', Consolas, Menlo, monospace;
    --sx-display: 'Space Grotesk', 'Segoe UI', Arial, sans-serif;

    --bs-body-bg: #05070f;
    --bs-body-bg-rgb: 5, 7, 15;
    --bs-body-color: #e6ebf5;
    --bs-secondary-color: rgba(214, 222, 238, 0.74);
    --bs-tertiary-bg: rgba(148, 163, 184, 0.08);
    --bs-border-color: var(--sx-line);
    --bs-link-color-rgb: 34, 211, 238;
    --bs-link-hover-color-rgb: 165, 243, 252;
    --bs-body-font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
}

.sx-svg { width: 1em; height: 1em; }

.sx-skip-link {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 2000;
    padding: 0.5rem 1rem;
    color: #04121a;
    background: var(--sx-cyan);
    border-radius: 0.375rem;
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--sx-cyan);
    outline-offset: 2px;
}


body { font-family: var(--bs-body-font-family); }

/* Faint grid fading out from the top, plus two soft glows. */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(var(--sx-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--sx-line) 1px, transparent 1px);
    background-size: 64px 64px;
    opacity: 0.35;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 100%);
}
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(40rem 28rem at 85% 8%, rgba(34, 211, 238, 0.13), transparent 70%),
        radial-gradient(36rem 26rem at 8% 45%, rgba(167, 139, 250, 0.1), transparent 70%);
}

::selection { background: rgba(34, 211, 238, 0.35); }

@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}

/* Keep anchor targets clear of the sticky navbar. */
section[id] { scroll-margin-top: 4.5rem; }

h1, h2, h3, .h2, .h5 { font-family: var(--sx-display); }

/* Navbar */
.sx-navbar {
    background: rgba(5, 7, 15, 0.72);
    border-bottom: 1px solid var(--sx-line);
    backdrop-filter: blur(14px);
}
.sx-navbar .nav-link { font-size: 0.9375rem; }
.sx-navbar .nav-link:hover,
.sx-navbar .nav-link:focus-visible { color: var(--sx-cyan); }
.sx-logo { height: 24px; width: auto; display: block; }

/* Buttons */
.btn-primary {
    --bs-btn-color: #04121a;
    --bs-btn-bg: var(--sx-cyan);
    --bs-btn-border-color: var(--sx-cyan);
    --bs-btn-hover-color: #04121a;
    --bs-btn-hover-bg: #67e8f9;
    --bs-btn-hover-border-color: #67e8f9;
    --bs-btn-active-color: #04121a;
    --bs-btn-active-bg: #a5f3fc;
    --bs-btn-active-border-color: #a5f3fc;
    --bs-btn-disabled-color: #04121a;
    --bs-btn-disabled-bg: var(--sx-cyan);
    --bs-btn-disabled-border-color: var(--sx-cyan);
    --bs-btn-focus-shadow-rgb: 34, 211, 238;
    font-weight: 600;
    box-shadow: 0 0 24px rgba(34, 211, 238, 0.28);
}
.btn-primary:hover { box-shadow: 0 0 34px rgba(34, 211, 238, 0.5); }

.btn-outline-secondary {
    --bs-btn-color: var(--bs-body-color);
    --bs-btn-border-color: var(--sx-line);
    --bs-btn-hover-color: var(--sx-cyan);
    --bs-btn-hover-bg: rgba(34, 211, 238, 0.08);
    --bs-btn-hover-border-color: var(--sx-cyan);
    --bs-btn-active-color: var(--sx-cyan);
    --bs-btn-active-bg: rgba(34, 211, 238, 0.14);
    --bs-btn-active-border-color: var(--sx-cyan);
    --bs-btn-focus-shadow-rgb: 34, 211, 238;
}

/* Type */
.sx-eyebrow {
    color: var(--sx-cyan);
    font-family: var(--sx-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.08em;
}

.sx-hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.04;
}

.sx-gradient-text {
    color: var(--sx-cyan);
    background: var(--sx-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sx-section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.sx-measure { max-width: 36rem; }

/* Sections */
.sx-section { border-top: 1px solid var(--sx-line); }

/* Glass cards */
.sx-card {
    height: 100%;
    padding: 1.75rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-line);
    border-radius: 0.75rem;
    backdrop-filter: blur(6px);
    transition: border-color 160ms, box-shadow 160ms, transform 160ms;
}
.sx-card:hover {
    border-color: rgba(34, 211, 238, 0.55);
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.12);
}
@media (prefers-reduced-motion: no-preference) {
    .sx-card:hover { transform: translateY(-3px); }
}

.sx-card-compact { padding: 1.25rem; }
.sx-card-compact .sx-icon { width: 2.5rem; height: 2.5rem; font-size: 1.125rem; }

.sx-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    color: var(--sx-cyan);
    font-size: 1.375rem;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 0.625rem;
}

.sx-step-number {
    color: var(--sx-violet);
    font-family: var(--sx-mono);
    font-size: 0.875rem;
}

.sx-statement {
    font-family: var(--sx-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    line-height: 1.25;
}

.sx-statement-answer {
    font-family: var(--sx-display);
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.2;
}

.sx-check { color: var(--sx-cyan); }

/* Hero orbit graphic */
.sx-orbit { display: block; width: 100%; max-width: 26rem; margin-inline: auto; }
.sx-orbit-ring { fill: none; stroke: var(--sx-line); }
.sx-orbit-spin { transform-origin: 200px 200px; }
.sx-orbit-label { font-family: var(--sx-mono); font-size: 13px; fill: var(--bs-body-color); }
.sx-orbit-pill { fill: #0b1020; stroke: rgba(34, 211, 238, 0.45); }
.sx-orbit-code { font-family: var(--sx-display); font-size: 40px; font-weight: 600; }

@media (prefers-reduced-motion: no-preference) {
    .sx-orbit-spin { animation: sx-spin 36s linear infinite; }
    .sx-orbit-spin.is-reverse { animation-direction: reverse; animation-duration: 24s; }
    .sx-orbit-spin.is-fast { animation-duration: 14s; }
}
@keyframes sx-spin { to { transform: rotate(360deg); } }

/* Contact panel with gradient hairline */
.sx-panel {
    padding: clamp(1.5rem, 4vw, 3rem);
    border: 1px solid transparent;
    border-radius: 1rem;
    background:
        linear-gradient(#0a0e1a, #0a0e1a) padding-box,
        linear-gradient(120deg, rgba(34, 211, 238, 0.6), rgba(167, 139, 250, 0.6)) border-box;
    box-shadow: 0 0 60px rgba(34, 211, 238, 0.08);
}

.form-control {
    background-color: rgba(148, 163, 184, 0.07);
    border-color: var(--sx-line);
}
.form-control:focus {
    background-color: rgba(148, 163, 184, 0.1);
    border-color: var(--sx-cyan);
    box-shadow: 0 0 0 0.2rem rgba(34, 211, 238, 0.22);
}

/* Contact form honeypot: off-screen for people, still present for bots. */
.sx-hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Privacy policy */
.sx-policy {
    max-width: 46rem;
    line-height: 1.65;
}
.sx-policy h1 { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 600; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.sx-policy h2 { font-size: 1.25rem; font-weight: 600; margin: 2.5rem 0 0.75rem; }
.sx-policy li { margin-bottom: 0.375rem; }
.sx-policy-meta { color: var(--bs-secondary-color); font-family: var(--sx-mono); font-size: 0.8125rem; margin-bottom: 2rem; }
.sx-policy-summary {
    background: var(--sx-surface);
    border-left: 3px solid var(--sx-cyan);
    margin-bottom: 2.5rem;
    padding: 1rem 1.25rem;
}
.sx-policy-summary p { margin: 0; }