/* Explain: High-tech panels and glowing interactive elements */
.eyebrow {
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary-color);
}

.cyber-panel {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-card);
    transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.cyber-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary-color) 40%, transparent), transparent);
    opacity: 0;
    transition: opacity 400ms ease;
}

.cyber-panel:hover {
    border-color: color-mix(in srgb, var(--primary-color) 50%, transparent);
    background: color-mix(in srgb, var(--surface-color) 40%, var(--surface-hover));
    box-shadow: var(--glow-primary);
    transform: translateY(-0.25rem);
}

.cyber-panel:hover::before {
    opacity: 1;
}

.cyber-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.75rem;
    background: color-mix(in srgb, var(--primary-color) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary-color) 25%, transparent);
    color: var(--primary-color);
    transition: all 300ms ease;
}

.cyber-panel:hover .cyber-icon-box {
    background: var(--primary-color);
    color: var(--background-color);
    box-shadow: 0 0 15px color-mix(in srgb, var(--primary-color) 50%, transparent);
}

.glow-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
}

.tech-form-input {
    background: var(--surface-color) !important;
    border: 1px solid var(--border-highlight) !important;
    color: var(--text-color) !important;
    transition: all 300ms ease;
}

.tech-form-input:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 15%, transparent) !important;
}

.memory-card {
    perspective: 1000px;
    aspect-ratio: 3/4;
    cursor: pointer;
}
.memory-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}
.memory-card.flipped .memory-card-inner {
    transform: rotateY(180deg);
}
.memory-card-front, .memory-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border: 1px solid var(--border-highlight);
}
.memory-card-front {
    background: color-mix(in srgb, var(--surface-color) 80%, var(--primary-color));
    color: var(--primary-color);
    transform: rotateY(180deg);
    box-shadow: var(--glow-primary);
}
.memory-card-back {
    background: color-mix(in srgb, var(--surface-color) 40%, transparent);
    color: var(--text-color);
    font-size: 1.5rem;
    transition: background 0.3s;
}
.memory-card-back:hover {
    background: color-mix(in srgb, var(--surface-color) 20%, var(--primary-color));
}
.memory-card.matched .memory-card-front {
    background: color-mix(in srgb, var(--surface-color) 50%, var(--accent-color));
    color: var(--accent-color);
    border-color: var(--accent-color);
}