/* ===================================================
   ULTRA-MODERN SKILLS SECTION
   Interactive filters, 3D cards, glassmorphism, animations
   =================================================== */

.skills-section-modern {
    padding: 6rem 0;
    background: linear-gradient(135deg, #0A0E27 0%, #1a1f3a 50%, #0f1729 100%);
    position: relative;
    overflow: hidden;
}

.skills-section-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(0, 229, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(123, 47, 247, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

/* Title & Subtitle */
.skills-main-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.skills-subtitle-text {
    text-align: center;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 3rem;
    font-weight: 400;
}

/* Interactive Category Filters */
.skills-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 4rem;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 229, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 229, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.filter-btn:hover::before {
    width: 300px;
    height: 300px;
}

.filter-btn:hover {
    border-color: var(--accent-cyan);
    color: #fff;
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(123, 47, 247, 0.2));
    border-color: var(--accent-cyan);
    color: #fff;
    box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
}

.filter-btn.featured {
    border-color: rgba(255, 196, 66, 0.4);
}

.filter-btn.featured.active {
    background: linear-gradient(135deg, rgba(255, 196, 66, 0.2), rgba(0, 229, 255, 0.2));
    border-color: #FFC442;
    box-shadow: 0 8px 30px rgba(255, 196, 66, 0.3);
}

/* Helper Text - Guides users to click */
.skills-helper-text {
    text-align: center;
    font-size: 1rem;
    color: rgba(0, 229, 255, 0.9);
    margin-bottom: 2.5rem;
    font-weight: 500;
    animation: subtlePulse 3s ease-in-out infinite;
}

@keyframes subtlePulse {

    0%,
    100% {
        opacity: 0.8;
    }

    50% {
        opacity: 1;
    }
}

/* Skills Grid */
.skills-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Skill Card - 3D Glassmorphic + CLICKABLE */
.skill-card-modern {
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.08) 0%,
            rgba(255, 255, 255, 0.03) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    text-align: center;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    /* Make it obvious it's clickable */

    /* 3D effect */
    transform-style: preserve-3d;
    transform: translateZ(0);
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* "Click for details" hint - appears on hover */
.skill-card-modern::after {
    content: '👆 Click for details';
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--accent-cyan);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    font-weight: 600;
    white-space: nowrap;
}

.skill-card-modern:hover::after {
    opacity: 1;
}

.skill-card-modern:hover {
    transform: translateY(-10px) rotateX(5deg) scale(1.05);
    border-color: var(--accent-cyan);
    box-shadow:
        0 20px 60px rgba(0, 229, 255, 0.4),
        0 0 40px rgba(0, 229, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Featured Skills (GenAI) */
.skill-card-modern.featured-skill {
    background: linear-gradient(135deg,
            rgba(0, 229, 255, 0.12) 0%,
            rgba(123, 47, 247, 0.12) 100%);
    border-color: var(--accent-cyan);
    box-shadow:
        0 10px 40px rgba(0, 229, 255, 0.2),
        inset 0 1px 0 rgba(0, 229, 255, 0.2);
}

.skill-card-modern.featured-skill:hover {
    box-shadow:
        0 25px 70px rgba(0, 229, 255, 0.5),
        0 0 50px rgba(123, 47, 247, 0.3);
}

.featured-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.4);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* Icon Wrapper with Ring */
.skill-icon-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

.skill-icon {
    width: 80px;
    height: 80px;
    font-size: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(123, 47, 247, 0.1));
    border-radius: 50%;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 2;
}

.skill-card-modern:hover .skill-icon {
    transform: rotateY(360deg) scale(1.1);
}

/* Proficiency Ring */
.proficiency-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid transparent;
    transition: all 0.4s ease;
}

/* Expert Level - Full Ring */
.proficiency-ring.expert {
    border-color: var(--accent-cyan);
    border-style: solid;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
}

/* Advanced Level - 3/4 Ring */
.proficiency-ring.advanced {
    border-top-color: var(--accent-cyan);
    border-right-color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    border-left-color: rgba(0, 229, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}

/* Intermediate Level - 1/2 Ring */
.proficiency-ring.intermediate {
    border-top-color: var(--accent-purple);
    border-right-color: var(--accent-purple);
    border-bottom-color: rgba(123, 47, 247, 0.2);
    border-left-color: rgba(123, 47, 247, 0.2);
    box-shadow: 0 0 15px rgba(123, 47, 247, 0.4);
}

.skill-card-modern:hover .proficiency-ring {
    transform: rotate(90deg) scale(1.1);
}

/* Skill Name & Level */
.skill-name {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.skill-level {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.expert-level {
    background: rgba(0, 229, 255, 0.2);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 229, 255, 0.4);
}

.advanced-level {
    background: rgba(0, 229, 255, 0.15);
    color: rgba(0, 229, 255, 0.9);
    border: 1px solid rgba(0, 229, 255, 0.3);
}

.intermediate-level {
    background: rgba(123, 47, 247, 0.15);
    color: var(--accent-purple);
    border: 1px solid rgba(123, 47, 247, 0.3);
}

/* Filtering Animation */
.skill-card-modern.hidden {
    display: none;
}

.skill-card-modern.show {
    animation: fadeInScale 0.5s ease forwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .skills-grid-modern {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .skills-grid-modern {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1.5rem;
    }

    .skill-card-modern {
        padding: 1.5rem 1rem;
    }

    .skill-icon-wrapper,
    .skill-icon {
        width: 60px;
        height: 60px;
    }

    .skill-icon {
        font-size: 2.5rem;
    }

    .proficiency-ring {
        width: 60px;
        height: 60px;
    }

    .skills-filters {
        gap: 0.75rem;
    }

    .filter-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .skills-grid-modern {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}