/* ================================================================
   EXTERNALSIGHT — FAQ PAGE  v20260409
   Premium accordion-based FAQ with category filtering.
   Dark security console aesthetic. Compositor-only animations.
   ================================================================ */

:root {
    --bg:            #070b0f;
    --panel:         #0c1420;
    --panel-hover:   #0e1825;
    --border:        rgba(255, 255, 255, 0.07);
    --border-accent: rgba(56, 217, 230, 0.28);
    --text-primary:  #ecf3ff;
    --text-body:     #b8cfe8;
    --text-meta:     #7a95b4;
    --accent:        #38d9e6;
    --accent2:       #4fd1c5;
    --accent-glow:   rgba(56, 217, 230, 0.10);
    --accent-glow2:  rgba(56, 217, 230, 0.05);
    --r-sm:  6px;
    --r-md:  10px;
    --r-lg:  14px;
    --r-xl:  20px;
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    background:
        radial-gradient(ellipse 80% 50% at 90% -5%, rgba(56, 217, 230, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse 60% 45% at 10% 100%, rgba(79, 209, 197, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #070b0f 0%, #080e17 100%);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ── Reading progress bar ───────────────────────────────────────── */
.progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 60%, transparent 100%);
    z-index: 200;
    pointer-events: none;
    transition: width 80ms linear;
    box-shadow: 0 0 14px rgba(56, 217, 230, 0.5);
}

/* ── Shell ──────────────────────────────────────────────────────── */
.faq-shell {
    max-width: 1020px;
    margin: 0 auto;
    padding: 0 28px 120px;
}

/* ── Topbar ─────────────────────────────────────────────────────── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 22px 0 26px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 60px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.01em;
    transition: opacity 0.18s ease;
}
.brand:hover { opacity: 0.82; }
.brand img  { width: 32px; height: 32px; }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 6px 16px;
    color: var(--text-meta);
    text-decoration: none;
    font-size: 0.83rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.back-link .back-arrow {
    display: inline-block;
    transition: transform 0.22s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-style: normal;
}
.back-link:hover {
    color: var(--accent);
    border-color: var(--border-accent);
    background: var(--accent-glow2);
}
.back-link:hover .back-arrow { transform: translateX(-4px); }

/* ── Hero header ────────────────────────────────────────────────── */
.faq-hero {
    text-align: center;
    padding: 0 0 56px;
    position: relative;
}

.faq-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 14px;
    background: rgba(56, 217, 230, 0.08);
    border: 1px solid rgba(56, 217, 230, 0.2);
    border-radius: 999px;
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 20px;
}
.faq-eyebrow svg { width: 12px; height: 12px; flex-shrink: 0; }

.faq-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin: 0 0 20px;
    background: linear-gradient(140deg, #ecf3ff 0%, #9bbbd8 75%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.faq-hero-sub {
    font-size: 1.08rem;
    color: var(--text-body);
    line-height: 1.72;
    max-width: 560px;
    margin: 0 auto 36px;
}

/* ── Search bar ─────────────────────────────────────────────────── */
.faq-search-wrap {
    display: flex;
    align-items: center;
    gap: 0;
    max-width: 480px;
    margin: 0 auto;
    background: rgba(12, 20, 32, 0.9);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}
.faq-search-wrap:focus-within {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px rgba(56, 217, 230, 0.08), 0 4px 24px rgba(0,0,0,0.3);
}

.faq-search-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0 0 16px;
    color: var(--text-meta);
    flex-shrink: 0;
    pointer-events: none;
}
.faq-search-icon svg { width: 16px; height: 16px; }

.faq-search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 13px 16px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
}
.faq-search-input::placeholder { color: var(--text-meta); opacity: 0.7; }

.faq-search-clear {
    display: none;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-right: 6px;
    background: rgba(255,255,255,0.05);
    border: none;
    border-radius: 50%;
    color: var(--text-meta);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: background 0.15s ease, color 0.15s ease;
    flex-shrink: 0;
}
.faq-search-clear.visible { display: flex; }
.faq-search-clear:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }

/* ── Category tabs ──────────────────────────────────────────────── */
.faq-cats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 48px;
}

.faq-cat-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 18px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-meta);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease, transform 0.15s ease;
}
.faq-cat-btn:hover {
    color: var(--text-primary);
    border-color: rgba(56,217,230,0.2);
    background: rgba(56,217,230,0.05);
    transform: translateY(-1px);
}
.faq-cat-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(56, 217, 230, 0.1);
}
.faq-cat-btn .cat-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: rgba(255,255,255,0.07);
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-meta);
    transition: background 0.18s ease, color 0.18s ease;
}
.faq-cat-btn.active .cat-count {
    background: rgba(56, 217, 230, 0.2);
    color: var(--accent);
}

/* ── No results state ───────────────────────────────────────────── */
.faq-no-results {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 64px 20px;
    color: var(--text-meta);
    text-align: center;
}
.faq-no-results svg { width: 40px; height: 40px; opacity: 0.3; }
.faq-no-results p { margin: 0; font-size: 0.95rem; }
.faq-no-results.visible { display: flex; }

/* ── Category group ─────────────────────────────────────────────── */
.faq-group {
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.faq-group.in-view {
    opacity: 1;
    transform: translateY(0);
}
.faq-group[data-hidden="true"] { display: none; }

.faq-group-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.faq-group-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--r-md);
    background: rgba(56, 217, 230, 0.08);
    border: 1px solid rgba(56, 217, 230, 0.16);
    color: var(--accent);
    flex-shrink: 0;
}
.faq-group-icon svg { width: 18px; height: 18px; }

.faq-group-meta { flex: 1; min-width: 0; }

.faq-group-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin: 0 0 2px;
    line-height: 1.3;
}

.faq-group-desc {
    font-size: 0.78rem;
    color: var(--text-meta);
    margin: 0;
    line-height: 1.4;
}

.faq-group-count {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-meta);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 10px;
    flex-shrink: 0;
}

/* ── Accordion list ─────────────────────────────────────────────── */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    list-style: none;
    padding: 0;
    margin: 0;
}

/* ── FAQ item ───────────────────────────────────────────────────── */
.faq-item {
    background: rgba(12, 20, 32, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: border-color 0.2s ease, background 0.2s ease;
}
.faq-item:hover { border-color: rgba(56, 217, 230, 0.16); }
.faq-item.open {
    border-color: var(--border-accent);
    background: rgba(12, 20, 32, 0.95);
    box-shadow: 0 0 0 1px rgba(56,217,230,0.06) inset, 0 8px 32px rgba(0,0,0,0.2);
}
.faq-item[data-hidden="true"] { display: none; }

/* ── Question button ────────────────────────────────────────────── */
.faq-question {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 18px 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    -webkit-tap-highlight-color: transparent;
}

.faq-q-number {
    font-size: 0.65rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    opacity: 0.5;
    flex-shrink: 0;
    min-width: 22px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
    transition: opacity 0.18s ease;
}
.faq-item.open .faq-q-number { opacity: 1; }

.faq-q-text {
    flex: 1;
    font-size: 0.97rem;
    font-weight: 600;
    color: var(--text-body);
    line-height: 1.5;
    transition: color 0.18s ease;
}
.faq-item:hover .faq-q-text,
.faq-item.open .faq-q-text { color: var(--text-primary); }

.faq-chevron {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--r-sm);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--text-meta);
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                background 0.18s ease,
                border-color 0.18s ease,
                color 0.18s ease;
}
.faq-chevron svg { width: 13px; height: 13px; pointer-events: none; }
.faq-item.open .faq-chevron {
    transform: rotate(180deg);
    background: rgba(56, 217, 230, 0.1);
    border-color: rgba(56, 217, 230, 0.25);
    color: var(--accent);
}

/* ── Answer panel ───────────────────────────────────────────────── */
.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.faq-item.open .faq-answer {
    grid-template-rows: 1fr;
}

.faq-answer-inner {
    overflow: hidden;
}

.faq-answer-body {
    padding: 0 20px 20px 56px;
    font-size: 0.935rem;
    line-height: 1.85;
    color: var(--text-body);
}

.faq-answer-body p {
    margin: 0 0 1rem;
}
.faq-answer-body p:last-child { margin-bottom: 0; }

.faq-answer-body strong { color: var(--text-primary); font-weight: 600; }
.faq-answer-body code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
    font-size: 0.82em;
    background: rgba(56, 217, 230, 0.07);
    color: var(--accent2);
    padding: 2px 7px;
    border-radius: 4px;
    border: 1px solid rgba(56, 217, 230, 0.14);
}

.faq-answer-body ul {
    margin: 0 0 1rem;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.faq-answer-body li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.92rem;
    color: var(--text-body);
    line-height: 1.65;
    padding: 8px 12px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
}
.faq-answer-body li::before {
    content: "→";
    color: var(--accent);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
    font-size: 0.76rem;
    line-height: 1.65;
}

/* Pill badge inside answers */
.plan-pill {
    display: inline-flex;
    align-items: center;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 0 2px;
    border: 1px solid transparent;
}
.plan-pill--recon    { background: rgba(148,163,184,0.1); color: #94a3b8; border-color: rgba(148,163,184,0.2); }
.plan-pill--sentinel { background: rgba(56,217,230,0.1);  color: var(--accent);  border-color: rgba(56,217,230,0.22); }
.plan-pill--fortress { background: rgba(79,209,197,0.1);  color: var(--accent2); border-color: rgba(79,209,197,0.22); }

/* ── Bottom CTA ─────────────────────────────────────────────────── */
.faq-cta {
    margin-top: 64px;
    padding: 40px 44px;
    background: linear-gradient(135deg, rgba(14,26,44,0.98), rgba(10,18,32,0.97));
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: var(--r-xl);
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}
.faq-cta-text { flex: 1; min-width: 220px; }
.faq-cta-eyebrow {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--accent2);
    margin-bottom: 8px;
}
.faq-cta h2 {
    margin: 0 0 10px;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    line-height: 1.15;
}
.faq-cta p {
    margin: 0;
    color: var(--text-body);
    font-size: 0.95rem;
    line-height: 1.65;
}
.faq-cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    flex-shrink: 0;
}
.faq-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 12px 24px;
    border-radius: var(--r-md);
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.15s ease, transform 0.15s ease, box-shadow 0.18s ease;
    border: 1px solid transparent;
}
.faq-cta-btn--primary {
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%);
    color: #030608;
}
.faq-cta-btn--primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(56, 217, 230, 0.25);
}
.faq-cta-btn--secondary {
    background: transparent;
    border-color: var(--border-accent);
    color: var(--accent);
}
.faq-cta-btn--secondary:hover {
    background: var(--accent-glow);
    transform: translateY(-1px);
}

/* ── Back to top ────────────────────────────────────────────────── */
#back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(56, 217, 230, 0.08);
    border: 1px solid rgba(56, 217, 230, 0.22);
    color: var(--accent);
    cursor: pointer;
    text-decoration: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease,
                background 0.18s ease, box-shadow 0.18s ease;
    z-index: 50;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
#back-to-top svg { pointer-events: none; }
#back-to-top.visible { opacity: 1; transform: translateY(0); }
#back-to-top:hover {
    background: rgba(56, 217, 230, 0.16);
    border-color: var(--accent);
    box-shadow: 0 0 22px rgba(56, 217, 230, 0.2);
    transform: translateY(-3px);
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 760px) {
    .faq-shell { padding: 0 18px 80px; }
    .faq-hero h1 { font-size: 2.2rem; }
    .faq-hero-sub { font-size: 0.97rem; }
    .faq-answer-body { padding: 0 16px 18px 16px; }
    .faq-q-number { display: none; }
    .faq-cta { padding: 28px 24px; flex-direction: column; gap: 24px; }
    .faq-cta-actions { width: 100%; }
    .faq-cta-btn { flex: 1; justify-content: center; }
}
@media (max-width: 480px) {
    .faq-hero { padding: 0 0 40px; }
    .faq-cats { gap: 6px; }
    .faq-cat-btn { font-size: 0.78rem; padding: 6px 14px; }
    #back-to-top { bottom: 20px; right: 20px; }
}