/* ============================================================
   Private AI Page — Creative Mental Lab
   ============================================================ */

/* ---- Hero ---- */
.pai-hero {
    position: relative;
    padding: clamp(120px, 18vw, 180px) 0 clamp(80px, 12vw, 120px);
    overflow: hidden;
    text-align: center;
}
.pai-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}
.pai-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.18;
}
.pai-orb-1 {
    width: 520px; height: 520px;
    background: radial-gradient(circle, #5ea2ff, transparent 70%);
    top: -120px; left: -100px;
}
.pai-orb-2 {
    width: 420px; height: 420px;
    background: radial-gradient(circle, #8b5cf6, transparent 70%);
    top: 40px; right: -80px;
}
.pai-orb-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, #22d3ee, transparent 70%);
    bottom: 0; left: 50%;
    transform: translateX(-50%);
}
.pai-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94,162,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94,162,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
}
.pai-hero-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
}
.pai-hero h1 {
    margin-bottom: 1.5rem;
}
.pai-hero-sub {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto 2.5rem;
    line-height: 1.75;
}
.pai-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2.5rem;
}
.pai-trust-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
}
.pai-pill {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-glass);
    border-radius: 999px;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ---- Risk Section ---- */
.pai-risk-section {
    padding: var(--section-pad);
    background: var(--bg-navy);
}
.pai-risk-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
}
.pai-risk-card {
    padding: 1.75rem;
    text-align: center;
}
.pai-risk-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}
.pai-risk-card h3 {
    font-size: 1rem;
    margin-bottom: 0.6rem;
}
.pai-risk-card p {
    font-size: 0.87rem;
    line-height: 1.65;
}

/* ---- Solution Section ---- */
.pai-solution-section {
    padding: var(--section-pad);
    background: var(--bg-deep);
}
.pai-solution-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.pai-solution-text .section-label { margin-bottom: 0.75rem; display: block; }
.pai-solution-text h2 { margin-bottom: 1.25rem; }
.pai-solution-text p { font-size: 1rem; line-height: 1.75; }
.pai-solution-list {
    margin-top: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.pai-solution-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.92rem;
    color: var(--text-muted);
}
.pai-solution-list .svc-check {
    color: var(--accent-mint);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

/* VS Card visual */
.pai-solution-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}
.pai-vs-card {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1.5rem;
}
.pai-vs-card.yours {
    border-color: rgba(94,162,255,0.3);
    box-shadow: 0 0 24px rgba(94,162,255,0.1);
}
.pai-vs-card.shared {
    border-color: rgba(255,80,80,0.2);
    opacity: 0.75;
}
.pai-vs-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    color: var(--text-dim);
}
.pai-vs-card.yours .pai-vs-label { color: var(--accent-blue); }
.pai-vs-icon { font-size: 1.6rem; margin-bottom: 0.75rem; }
.pai-vs-card ul { display: flex; flex-direction: column; gap: 0.45rem; }
.pai-vs-card li {
    font-size: 0.86rem;
    color: var(--text-muted);
}
.pai-vs-card.yours li { color: var(--text-primary); }
.pai-vs-divider {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    padding: 0.75rem 0;
    text-transform: uppercase;
}

/* ---- Pod Architecture Section ---- */
.pai-pod-section {
    padding: var(--section-pad);
    background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-navy) 100%);
}
.pai-pod-wrap {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 3rem;
    align-items: center;
    background: rgba(255,255,255,0.035);
    border: 1px solid rgba(94,162,255,0.18);
    border-radius: 24px;
    padding: clamp(1.75rem, 4vw, 3rem);
    box-shadow: 0 0 38px rgba(94,162,255,0.08);
}
.pai-pod-copy .section-label {
    display: block;
    margin-bottom: 0.75rem;
}
.pai-pod-copy h2 {
    margin-bottom: 1rem;
}
.pai-pod-copy p {
    font-size: 0.95rem;
    line-height: 1.75;
}
.pai-pod-copy p + p {
    margin-top: 1rem;
}
.pai-pod-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 0.8rem;
    align-items: stretch;
}
.pai-pod-node {
    min-height: 220px;
    background: rgba(5,6,13,0.65);
    border: 1px solid var(--border-glass);
    border-radius: 18px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.pai-pod-node.accent {
    border-color: rgba(139,92,246,0.35);
    box-shadow: 0 0 22px rgba(139,92,246,0.08);
}
.pai-pod-node.result {
    border-color: rgba(52,211,153,0.3);
    box-shadow: 0 0 22px rgba(52,211,153,0.08);
}
.pai-pod-node span {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
}
.pai-pod-node strong {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.55rem;
    line-height: 1.3;
}
.pai-pod-node p {
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--text-muted);
}
.pai-pod-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-blue);
    font-size: 1.4rem;
    font-weight: 800;
}

/* ---- Features Section ---- */
.pai-features-section {
    padding: var(--section-pad);
    background: var(--bg-navy);
}
.pai-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}
.pai-feature-card {
    padding: 2rem;
}
.pai-feature-icon-wrap {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}
.pai-feature-card h3 { font-size: 1.05rem; margin-bottom: 0.65rem; }
.pai-feature-card p  { font-size: 0.88rem; line-height: 1.7; }

/* ---- How It Works ---- */
.pai-how-section {
    padding: var(--section-pad);
    background: var(--bg-deep);
}
.pai-steps {
    margin-top: 3.5rem;
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 780px;
    margin-left: auto;
    margin-right: auto;
}
.pai-step {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 2rem;
    align-items: start;
}
.pai-step-num {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding-top: 4px;
}
.pai-step-body h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.pai-step-body > p { font-size: 0.93rem; line-height: 1.7; margin-bottom: 1rem; }
.pai-step-details {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.pai-step-details li {
    font-size: 0.84rem;
    color: var(--text-dim);
    padding-left: 1rem;
    position: relative;
}
.pai-step-details li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: 700;
}
.pai-step-connector {
    width: 2px;
    height: 48px;
    background: linear-gradient(180deg, rgba(94,162,255,0.4), rgba(94,162,255,0.1));
    margin-left: 35px;
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
}

/* ---- Use Cases ---- */
.pai-usecases-section {
    padding: var(--section-pad);
    background: var(--bg-navy);
}
.pai-usecases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
}
.pai-usecase {
    padding: 1.75rem;
}
.pai-usecase-icon { font-size: 1.8rem; margin-bottom: 1rem; display: block; }
.pai-usecase h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.pai-usecase p { font-size: 0.86rem; line-height: 1.68; }

/* ---- Ranking Section ---- */
.pai-ranking-section {
    padding: var(--section-pad);
    background: var(--bg-deep);
}
.pai-ranking-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}
.pai-ranking-text .section-label { display: block; margin-bottom: 0.75rem; }
.pai-ranking-text h2 { margin-bottom: 1.25rem; }
.pai-ranking-text > p { font-size: 0.98rem; line-height: 1.75; margin-bottom: 2rem; }
.pai-ranking-channels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.pai-channel {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.pai-channel-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}
.pai-channel strong {
    display: block;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}
.pai-channel p { font-size: 0.87rem; line-height: 1.65; }
.pai-ranking-stats {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.pai-stat-card {
    padding: 1.75rem;
    text-align: center;
}
.pai-stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.6rem;
}
.pai-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.55;
}

/* ---- Briefings Section ---- */
.pai-briefings-section {
    padding: var(--section-pad);
    background: var(--bg-navy);
}
.pai-briefings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}
.pai-briefing-card { padding: 2rem; }
.pai-briefing-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}
.pai-briefing-icon { font-size: 1.5rem; }
.pai-briefing-header h3 { font-size: 1rem; }
.pai-briefing-card > p { font-size: 0.88rem; line-height: 1.7; margin-bottom: 1.25rem; }
.pai-briefing-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.pai-briefing-list li {
    font-size: 0.83rem;
    color: var(--text-dim);
    padding-left: 1rem;
    position: relative;
}
.pai-briefing-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: 700;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .pai-risk-grid      { grid-template-columns: 1fr 1fr; }
    .pai-features-grid  { grid-template-columns: 1fr 1fr; }
    .pai-briefings-grid { grid-template-columns: 1fr 1fr; }
    .pai-solution-wrap  { grid-template-columns: 1fr; gap: 2.5rem; }
    .pai-ranking-wrap   { grid-template-columns: 1fr; gap: 2.5rem; }
    .pai-pod-wrap       { grid-template-columns: 1fr; }
    .pai-pod-flow       { grid-template-columns: 1fr; }
    .pai-pod-arrow      { padding: 0.25rem 0; }
    .pai-pod-node       { min-height: auto; }
}
@media (max-width: 720px) {
    .pai-risk-grid      { grid-template-columns: 1fr; }
    .pai-features-grid  { grid-template-columns: 1fr; }
    .pai-usecases-grid  { grid-template-columns: 1fr 1fr; }
    .pai-briefings-grid { grid-template-columns: 1fr; }
    .pai-trust-pills    { gap: 0.5rem; }
    .pai-pill           { font-size: 0.74rem; padding: 0.35rem 0.75rem; }
    .pai-step           { grid-template-columns: 52px 1fr; gap: 1.25rem; }
    .pai-step-num       { font-size: 2rem; }
}
@media (max-width: 480px) {
    .pai-usecases-grid { grid-template-columns: 1fr; }
}