.esp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.esp-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    overflow: hidden;
    transition: var(--transition);
}

.esp-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-soft);
    opacity: 0;
    transition: var(--transition);
}

.esp-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.esp-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
}

.esp-card:hover::before { opacity: 1; }
.esp-card:hover::after { transform: scaleX(1); }

.esp-card > * {
    position: relative;
    z-index: 1;
}

.esp-icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(0, 255, 255, 0.08);
    border: 1px solid var(--border-strong);
    margin-bottom: 22px;
    font-size: 28px;
    color: var(--primary);
    transition: var(--transition);
}

.esp-card:hover .esp-icon {
    background: var(--gradient-primary);
    color: #04101a;
    transform: scale(1.05);
}

.esp-card h3 {
    font-size: 19px;
    margin-bottom: 12px;
    color: #fff;
}

.esp-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.esp-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.esp-stack li {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    padding: 4px 10px;
    background: rgba(0, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--primary);
    letter-spacing: 0.4px;
}

/* Tech marquee */
.tech-marquee {
    overflow: hidden;
    border-block: 1px solid var(--border);
    padding: 28px 0;
    mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}

.marquee-track {
    display: flex;
    gap: 56px;
    width: max-content;
    animation: marquee 28s linear infinite;
}

.marquee-track span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 22px;
    color: var(--text-dim);
    transition: var(--transition);
    white-space: nowrap;
}

.marquee-track span i {
    font-size: 28px;
}

.marquee-track span:hover {
    color: var(--primary);
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@media (max-width: 600px) {
    .esp-card { padding: 26px 22px; }
    .marquee-track { gap: 36px; }
    .marquee-track span { font-size: 18px; }
    .marquee-track span i { font-size: 22px; }
}