/* ===================================================
   SKILLS SECTION - Technology Expertise
   =================================================== */

.skills {
    background: var(--bg-base);
    position: relative;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

/* Skill Category Card */
.skill-category {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.skill-category.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.skill-category:hover {
    border-color: hsla(161, 62%, 55%, 0.3);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--glass-border);
}

.skill-category h3 i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: hsla(161, 62%, 55%, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-brand-primary);
    font-size: var(--text-base);
}

/* Skill Tags */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.skill-tag {
    background: hsla(161, 62%, 55%, 0.1);
    color: var(--color-brand-primary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border: 1px solid hsla(161, 62%, 55%, 0.2);
    transition: var(--transition-base);
    cursor: default;
}

.skill-tag:hover {
    background: var(--color-brand-primary);
    color: var(--bg-base);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px hsla(161, 62%, 55%, 0.2);
}

/* Tech Icons Grid */
.tech-icons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-6);
    padding-top: var(--space-8);
    border-top: 1px solid var(--glass-border);
}

.tech-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    font-size: var(--text-2xl);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

.tech-icon svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
    transition: var(--transition-base);
}

.tech-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.8);
    transition: var(--transition-base);
}

.tech-icon:hover {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    color: var(--bg-base);
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-glow);
}

.tech-icon:hover img {
    filter: grayscale(0%) brightness(1);
}

/* Tooltip */
.tech-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    z-index: var(--z-elevated);
}

.tech-icon:hover::after {
    opacity: 1;
    visibility: visible;
}