/* ===============================================
   Apercept AI — Page-specific styles
   =============================================== */

/* Grid background overlay */
.bg-grid {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.7) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.7) 1px, transparent 1px);
    background-size: 44px 44px;
}

/* ----------- Simulation stage ----------- */
.sim-stage {
    min-height: 480px;
}

@media (min-width: 1024px) {
    .sim-stage {
        min-height: 560px;
    }
}

/* Connection line draw-in */
.sim-line {
    stroke-dasharray: 240;
    stroke-dashoffset: 240;
    animation: drawLine 2.4s ease forwards;
}

@keyframes drawLine {
    to { stroke-dashoffset: 0; }
}

/* Floating persona nodes */
.persona-node {
    animation: nodeFloat 5s ease-in-out infinite;
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ----------- Simulation Outputs cards ----------- */
.output-card {
    position: relative;
    padding: 26px 24px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    transition: transform 0.35s ease, border-color 0.35s ease, background 0.35s ease;
    overflow: hidden;
}

.output-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.5), transparent 40%);
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.output-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.035);
}

.output-card:hover::before {
    opacity: 1;
}

.output-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    border: 1px solid;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
}

.output-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.output-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.55;
}

.output-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
}

.output-meta .dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    display: inline-block;
}

/* ----------- Use case cards ----------- */
.use-card {
    padding: 28px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.005));
    transition: transform 0.35s ease, border-color 0.35s ease;
}

.use-card:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.3);
}

/* ----------- Research module rows ----------- */
.research-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.25s ease;
}

.research-row:hover {
    background: rgba(255, 255, 255, 0.04);
}

/* ----------- Vision cards ----------- */
.vision-card {
    padding: 22px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    transition: transform 0.35s ease, border-color 0.35s ease, background 0.35s ease;
}

.vision-card:hover {
    transform: translateY(-3px);
    border-color: rgba(139, 92, 246, 0.3);
    background: rgba(255, 255, 255, 0.035);
}

/* ----------- Responsive tweaks ----------- */
@media (max-width: 640px) {
    .sim-stage .persona-node > div {
        transform: scale(0.85);
        transform-origin: top left;
    }
}