/* Technical Skills Section - Modern Grid Layout */
.skills {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 6rem 0;
    position: relative;
}

.skills .section-header {
    margin-bottom: 5rem;
}

.skills .container {
    max-width: 1400px;
}

/* Skills Grid - Responsive 2-Column Layout */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    width: 100%;
}

/* Skill Category Card */
.skill-category {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 12px var(--shadow-sm);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Animated gradient border on hover */
.skill-category::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 22px;
    padding: 2px;
    background: var(--gradient-accent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.skill-category:hover::before {
    opacity: 1;
}

.skill-category:hover {
    box-shadow: 0 20px 60px var(--shadow-xl);
    transform: translateY(-4px);
    border-color: var(--accent-primary);
}

/* Skill Category Header */
.skill-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-light);
}

.skill-category-icon {
    width: 32px;
    height: 32px;
    opacity: 0.85;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.skill-category:hover .skill-category-icon {
    opacity: 1;
    transform: scale(1.1) rotate(5deg);
}

.skill-category-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.02em;
    flex: 1;
}

/* Skill Chips - Enhanced Styling */
.skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.skill-chip {
    padding: 0.6rem 1.15rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px var(--shadow-sm);
    position: relative;
    overflow: hidden;
    cursor: default;
}

/* Primary skills - highlighted */
.skill-chip.skill-primary {
    background: rgba(52, 152, 219, 0.1);
    border-color: rgba(52, 152, 219, 0.3);
    color: var(--accent-primary);
    font-weight: 600;
}

.skill-chip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.skill-chip:hover::before {
    opacity: 0.1;
}

.skill-chip:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-md);
}

.skill-chip.skill-primary:hover {
    background: rgba(52, 152, 219, 0.15);
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(52, 152, 219, 0.3);
}

.skill-chip > * {
    position: relative;
    z-index: 1;
}

/* Responsive Design */
@media (max-width: 992px) {
    .skills-grid {
        gap: 2.5rem;
    }

    .skill-category {
        padding: 1.75rem;
    }

    .skill-category-title {
        font-size: 1.35rem;
    }
}

@media (max-width: 768px) {
    .skills {
        padding: 4rem 0;
    }

    .skills .section-header {
        margin-bottom: 3rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .skill-category {
        padding: 1.5rem;
        gap: 1.25rem;
    }

    .skill-category-header {
        gap: 0.875rem;
        padding-bottom: 0.875rem;
    }

    .skill-category-icon {
        width: 28px;
        height: 28px;
    }

    .skill-category-title {
        font-size: 1.25rem;
    }

    .skill-chips {
        gap: 0.625rem;
    }

    .skill-chip {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .skills {
        padding: 3rem 0;
    }

    .skills .section-header {
        margin-bottom: 2.5rem;
    }

    .skills-grid {
        gap: 1.75rem;
    }

    .skill-category {
        padding: 1.25rem;
        gap: 1rem;
        border-radius: 16px;
    }

    .skill-category-header {
        gap: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .skill-category-icon {
        width: 24px;
        height: 24px;
    }

    .skill-category-title {
        font-size: 1.15rem;
    }

    .skill-chips {
        gap: 0.5rem;
    }

    .skill-chip {
        font-size: 0.8rem;
        padding: 0.45rem 0.9rem;
    }
}