/* PixelTracing - shared theme (matches the coming-soon homepage) */
:root {
    --pt-bg: #0d0f14;
    --pt-surface: #151922;
    --pt-surface-2: #1b2030;
    --pt-border: rgba(255, 255, 255, 0.08);
    --pt-text: #f4f5f7;
    --pt-muted: #8a99ad;
    --pt-cyan: #00f2fe;
    --pt-magenta: #ff00a0;
    --pt-success: #00ff87;
    --pt-danger: #ff4500;
    --pt-gradient: linear-gradient(135deg, #00f2fe 0%, #ff00a0 100%);
    --pt-radius: 12px;

    /* Map the theme onto Bootstrap 5.3 variables */
    --bs-body-bg: var(--pt-bg);
    --bs-body-color: var(--pt-text);
    --bs-body-font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --bs-border-color: var(--pt-border);
    --bs-link-color: var(--pt-cyan);
    --bs-link-hover-color: #7ffaff;
    --bs-secondary-color: var(--pt-muted);
    --bs-emphasis-color: #fff;
}

html { scroll-padding-top: 80px; }

body {
    background-color: var(--pt-bg);
    color: var(--pt-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1 0 auto; }

/* Skip link for keyboard users */
.pt-skip {
    position: absolute;
    left: -999px;
    top: 8px;
    background: #fff;
    color: #000;
    padding: 8px 14px;
    border-radius: 8px;
    z-index: 2000;
}
.pt-skip:focus { left: 8px; }

/* Keyboard focus */
:focus-visible {
    outline: 2px solid var(--pt-cyan);
    outline-offset: 2px;
}

/* ---------- Navbar ---------- */
.pt-nav {
    background: rgba(13, 15, 20, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--pt-border);
}
.pt-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--pt-text);
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    text-decoration: none;
    font-size: 0.95rem;
}
.pt-brand img { width: 34px; height: 34px; object-fit: contain; }
.pt-brand:hover { color: #fff; }
.pt-nav .nav-link { color: #cbd5e1; font-weight: 500; }
.pt-nav .nav-link:hover,
.pt-nav .nav-link.active { color: var(--pt-cyan); }
.pt-nav .navbar-toggler { border-color: var(--pt-border); }
.pt-nav .navbar-toggler-icon { filter: invert(1); }

/* ---------- Buttons ---------- */
.btn-pt {
    background: var(--pt-gradient);
    color: #fff;
    border: 0;
    font-weight: 600;
    padding: 0.6rem 1.4rem;
    border-radius: 999px;
}
.btn-pt:hover, .btn-pt:focus { color: #fff; filter: brightness(1.1); }
.btn-pt:disabled { opacity: 0.55; }
.btn-pt-outline {
    background: transparent;
    color: var(--pt-text);
    border: 1px solid var(--pt-border);
    border-radius: 999px;
    font-weight: 500;
    padding: 0.6rem 1.4rem;
}
.btn-pt-outline:hover { border-color: var(--pt-cyan); color: var(--pt-cyan); }

/* ---------- Surfaces ---------- */
.pt-panel {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
}
.pt-panel-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
}

/* Page heading block used by tool pages */
.pt-page-head { padding: 2.5rem 0 1.5rem; }
.pt-page-head h1 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 0.6rem;
}
.pt-page-head p { color: var(--pt-muted); max-width: 62ch; margin: 0; }

/* Form controls on dark surfaces */
.form-control, .form-select {
    background-color: var(--pt-surface-2);
    border-color: var(--pt-border);
    color: var(--pt-text);
}
.form-control:focus, .form-select:focus {
    background-color: var(--pt-surface-2);
    color: var(--pt-text);
    border-color: var(--pt-cyan);
    box-shadow: 0 0 0 0.2rem rgba(0, 242, 254, 0.15);
}
.form-label { color: #cbd5e1; font-size: 0.875rem; margin-bottom: 0.25rem; }
.form-range::-webkit-slider-thumb { background: var(--pt-cyan); }
.form-range::-moz-range-thumb { background: var(--pt-cyan); }
.form-check-input:checked { background-color: var(--pt-cyan); border-color: var(--pt-cyan); }

/* ---------- Manual service call-to-action ---------- */
.pt-cta {
    border: 1px solid rgba(255, 0, 160, 0.3);
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.05), rgba(255, 0, 160, 0.07));
    border-radius: var(--pt-radius);
    padding: 2rem;
}
.pt-cta h2 { font-size: 1.5rem; font-weight: 800; }
.pt-cta p { color: #cbd5e1; max-width: 62ch; }

/* ---------- FAQ ---------- */
.pt-faq .accordion-item {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
}
.pt-faq .accordion-button {
    background: var(--pt-surface);
    color: var(--pt-text);
    box-shadow: none;
}
.pt-faq .accordion-button:not(.collapsed) { color: var(--pt-cyan); }
.pt-faq .accordion-button::after { filter: invert(1); }
.pt-faq .accordion-body { color: #cbd5e1; }

/* ---------- Footer ---------- */
.pt-footer {
    border-top: 1px solid var(--pt-border);
    color: var(--pt-muted);
    font-size: 0.9rem;
    margin-top: 3rem;
}
.pt-footer a { color: #cbd5e1; text-decoration: none; }
.pt-footer a:hover { color: var(--pt-cyan); }

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}