/* ============================
   SP Scroll Effects — Styles
   ============================ */

:root {
    --spfx-x: 50%;
    --spfx-y: 50%;
}

/* ============================
   Dot Grid Background
   ============================ */

.spfx-dot-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background-image: radial-gradient(var(--spfx-dot-color, #e2e8f0) var(--spfx-dot-size, 1.5px), transparent var(--spfx-dot-size, 1.5px));
    background-size: 18px 18px;
    -webkit-mask-image: radial-gradient(circle var(--spfx-mask-radius, 400px) at var(--spfx-x) var(--spfx-y), black 10%, transparent 100%);
    mask-image: radial-gradient(circle var(--spfx-mask-radius, 400px) at var(--spfx-x) var(--spfx-y), black 10%, transparent 100%);
    transition: opacity 0.3s ease;
}

/* ============================
   Pulse Lines
   ============================ */

.spfx-pulse-line {
    width: 2px;
    height: var(--spfx-line-height, 800px);
    background: transparent;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    transform-origin: top;
    opacity: 0;
    transform: scaleY(0);
    -webkit-mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
    mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
}

.spfx-pulse-line::after {
    content: "";
    position: absolute;
    top: -300px;
    left: 0;
    width: 100%;
    height: 300px;
    background: linear-gradient(to bottom, transparent, var(--spfx-pulse-color, #4A30BF), transparent);
    animation: spfx-flow var(--spfx-pulse-speed, 2.5s) linear infinite;
}

@keyframes spfx-flow {
    0% { top: -300px; }
    100% { top: var(--spfx-line-height, 800px); }
}

/* ============================
   Card Initial States (for GSAP)
   ============================ */

.spfx-card-init {
    opacity: 0;
    transform: translateY(900px);
    will-change: transform, opacity;
}

/* ============================
   Pin Container (injected by JS)
   ============================ */

.spfx-pin-section {
    position: relative;
    overflow: hidden;
}

/* ============================
   Fade Reveal Initial States
   ============================ */

.spfx-fade-init {
    opacity: 0;
    transform: translateY(40px);
    filter: blur(6px);
    will-change: transform, opacity, filter;
}

/* ============================
   Badge Label (header text)
   ============================ */

.spfx-badge-init {
    opacity: 0;
    transform: translateY(10px);
}

.spfx-title-init {
    opacity: 0;
    transform: translateY(20px);
    filter: blur(8px);
}

/* ============================
   Pulse Cards Grid Layout (injected)
   ============================ */

.spfx-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    max-width: 1450px;
    width: 100%;
    padding: 0 20px;
    margin: 0 auto;
}

.spfx-column {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0;
}

.spfx-column .spfx-card-wrap {
    background: white;
    border: 1px solid #f1f5f9;
    padding: 30px;
    border-radius: 0 20px 20px 0;
    width: 100%;
    min-height: 200px;
    box-shadow: 10px 10px 30px rgba(0, 0, 0, 0.03);
}

/* ============================
   Responsive
   ============================ */

@media (max-width: 1100px) {
    .spfx-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    .spfx-pulse-line {
        height: 500px;
    }
}

@media (max-width: 600px) {
    .spfx-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .spfx-pulse-line {
        height: 400px;
    }
}

/* ============================
   Reduced Motion
   ============================ */

@media (prefers-reduced-motion: reduce) {
    .spfx-dot-grid,
    .spfx-pulse-line,
    .spfx-pulse-line::after {
        animation: none !important;
        transition: none !important;
    }
    .spfx-card-init,
    .spfx-fade-init,
    .spfx-badge-init,
    .spfx-title-init {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
    }
}