/* Skills Section - Holographic Style 
 * Complementing the cyberpunk theme with a holographic tech grid interface
 * Enhanced with drag-and-drop interactivity
 */

:root {
    /* Holographic palette - complementing cyberpunk */
    --holo-primary: #36e2ec;
    --holo-secondary: #4be5c0;
    --holo-accent: #00ffff;
    --holo-glow: rgba(54, 226, 236, 0.6);
    --holo-dark: rgba(4, 32, 42, 0.8);
    --holo-grid: rgba(54, 226, 236, 0.2);
    --holo-scan: rgba(54, 226, 236, 0.1);
    --holo-glitch1: rgba(255, 0, 140, 0.8);
    --holo-glitch2: rgba(0, 255, 255, 0.8);
}

/* Holographic Section Header */
.holo-section-header {
    position: relative;
    font-family: 'Orbitron', sans-serif, 'Arial';
    text-transform: uppercase;
    letter-spacing: 4px;
    font-weight: 700 !important;
    color: var(--holo-primary) !important;
    text-shadow: 
        0 0 5px var(--holo-primary),
        0 0 10px var(--holo-primary),
        0 0 15px var(--holo-accent);
    animation: holo-pulse 4s infinite alternate;
    margin-bottom: 30px !important;
    padding: 15px 30px !important;
    display: inline-block;
    border: 3px solid var(--holo-primary);
    background: rgba(0, 10, 20, 0.7);
    position: relative;
    z-index: 1;
    box-shadow: 0 0 15px var(--holo-glow);
    backdrop-filter: blur(5px);
}

/* Header glitch effect */
.holo-section-header::before {
    content: attr(data-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--holo-glitch1);
    z-index: -1;
    animation: glitch-1 3s infinite alternate;
    filter: blur(1px);
}

.holo-section-header::after {
    content: attr(data-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--holo-glitch2);
    z-index: -2;
    animation: glitch-2 4s infinite alternate-reverse;
    filter: blur(1px);
}

/* Holographic container styling */
.skills-holographic-container {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    padding: 30px 20px;
    background: var(--holo-dark);
    box-shadow: 0 0 25px rgba(0, 180, 220, 0.2);
    backdrop-filter: blur(10px);
}

/* Grid background effect */
.skills-holographic-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, var(--holo-grid) 1px, transparent 1px),
        linear-gradient(0deg, var(--holo-grid) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.4;
    z-index: -1;
    animation: grid-pulse 8s infinite linear;
}

/* Scanner effect for the container */
.skills-holographic-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(180deg, 
        transparent, 
        var(--holo-scan), 
        transparent);
    animation: holo-scanner 8s ease-in-out infinite;
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
}

/* Holographic skill icon */
.skill-icon.holo {
    background: rgba(4, 32, 42, 0.4);
    border: 1px solid var(--holo-primary);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(54, 226, 236, 0.2);
}

/* Skill icon glitch effects */
.skill-icon.holo.glitch-active {
    animation: icon-glitch-animate 0.2s infinite;
}

.skill-icon.holo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(54, 226, 236, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: holo-shine 6s infinite linear;
    pointer-events: none;
}

.skill-icon.holo i {
    color: var(--holo-primary);
    text-shadow: 0 0 10px var(--holo-primary);
    transition: all 0.3s ease;
}

.skill-icon.holo:hover {
    transform: translateY(-5px);
    border-color: var(--holo-accent);
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.2),
        0 0 20px var(--holo-glow);
}

.skill-icon.holo:hover::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(54, 226, 236, 0.1);
    animation: glitch-flash 0.3s infinite alternate;
    z-index: 0;
    pointer-events: none;
}

.skill-icon.holo:hover i {
    color: var(--holo-accent);
    animation: holo-icon-pulse 2s infinite alternate;
    position: relative;
    z-index: 2;
}

/* Custom TypeScript icon styling */
.typescript-icon {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--holo-primary);
    text-shadow: 0 0 10px var(--holo-primary);
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    letter-spacing: -2px;
    text-transform: uppercase;
    line-height: 1;
}

/* TypeScript icon hover effects */
.skill-icon.holo:hover .typescript-icon {
    color: var(--holo-accent);
    animation: holo-icon-pulse 2s infinite alternate;
    position: relative;
    z-index: 2;
}

/* Skill icon glitch effects for TypeScript */
.skill-icon.holo.glitch-active .typescript-icon {
    animation: icon-glitch-animate 0.2s infinite;
}

/* Skill proficiency indicator */
.skill-proficiency {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    position: absolute;
    bottom: 0;
    left: 0;
    overflow: hidden;
}

.skill-proficiency-level {
    height: 100%;
    background: linear-gradient(90deg, var(--holo-primary), var(--holo-accent));
    position: relative;
    box-shadow: 0 0 5px var(--holo-primary);
    animation: proficiency-glitch 3s infinite alternate;
}

.skill-proficiency-level::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4), 
        transparent);
    animation: holo-scan 2s infinite linear;
}

/* Category header styling */
.skills-category h4.holo-header {
    color: var(--holo-primary);
    position: relative;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    padding-left: 15px;
    margin-bottom: 25px;
    text-shadow: 0 0 5px var(--holo-primary);
}

.skills-category h4.holo-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 100%;
    background: var(--holo-primary);
    box-shadow: 0 0 10px var(--holo-glow);
    animation: glitch-line 4s infinite alternate;
}

.skills-category h4.holo-header::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--holo-primary), transparent);
    box-shadow: 0 0 10px var(--holo-glow);
}

/* Animations */
@keyframes holo-pulse {
    0%, 100% { 
        text-shadow: 
            0 0 5px var(--holo-primary),
            0 0 10px var(--holo-primary);
    }
    50% { 
        text-shadow: 
            0 0 5px var(--holo-primary),
            0 0 10px var(--holo-primary),
            0 0 15px var(--holo-accent),
            0 0 25px var(--holo-accent);
    }
}

@keyframes holo-scanner {
    0%, 100% { transform: translateY(-100%); opacity: 0; }
    50% { transform: translateY(100%); opacity: 1; }
}

@keyframes holo-shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

@keyframes holo-scan {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes holo-icon-pulse {
    0% { 
        text-shadow: 0 0 5px var(--holo-primary); 
        transform: scale(1);
    }
    50% { 
        text-shadow: 
            0 0 10px var(--holo-primary),
            0 0 15px var(--holo-accent); 
        transform: scale(1.05);
    }
    100% { 
        text-shadow: 0 0 5px var(--holo-primary); 
        transform: scale(1);
    }
}

@keyframes grid-pulse {
    0%, 100% {
        opacity: 0.4;
        background-size: 20px 20px;
    }
    50% {
        opacity: 0.6;
        background-size: 22px 22px;
    }
}

/* Glitch animations */
@keyframes glitch-1 {
    0%, 100% { 
        clip-path: inset(50% 0 40% 0); 
        transform: translate(-51%, -52%);
    }
    20% { 
        clip-path: inset(20% 0 80% 0); 
        transform: translate(-49%, -48%);
    }
    40% { 
        clip-path: inset(70% 0 10% 0); 
        transform: translate(-51%, -51%);
    }
    60% { 
        clip-path: inset(10% 0 90% 0); 
        transform: translate(-49%, -52%);
    }
    80% { 
        clip-path: inset(40% 0 60% 0); 
        transform: translate(-49%, -48%);
    }
}

@keyframes glitch-2 {
    0%, 100% { 
        clip-path: inset(30% 0 60% 0); 
        transform: translate(-49%, -48%);
    }
    20% { 
        clip-path: inset(80% 0 20% 0); 
        transform: translate(-51%, -52%);
    }
    40% { 
        clip-path: inset(20% 0 80% 0); 
        transform: translate(-51%, -49%);
    }
    60% { 
        clip-path: inset(60% 0 40% 0); 
        transform: translate(-49%, -51%);
    }
    80% { 
        clip-path: inset(10% 0 80% 0); 
        transform: translate(-49%, -51%);
    }
}

@keyframes glitch-flash {
    0%, 100% { 
        opacity: 0.1; 
        transform: translate(0, 0);
    }
    25% { 
        opacity: 0.3; 
        transform: translate(-1px, 1px);
    }
    50% { 
        opacity: 0.1; 
        transform: translate(1px, -1px);
    }
    75% { 
        opacity: 0.3; 
        transform: translate(-1px, -1px);
    }
}

@keyframes icon-glitch-animate {
    0%, 100% { 
        transform: translate(0);
        filter: hue-rotate(0deg);
    }
    25% { 
        transform: translate(1px, -1px);
        filter: hue-rotate(90deg);
    }
    50% { 
        transform: translate(-1px, 1px); 
        filter: hue-rotate(180deg);
    }
    75% { 
        transform: translate(1px, 1px); 
        filter: hue-rotate(270deg);
    }
}

@keyframes glitch-line {
    0%, 100% { 
        height: 100%;
        top: 50%;
        opacity: 1;
    }
    25% { 
        height: 60%;
        top: 40%;
        opacity: 0.8;
    }
    50% { 
        height: 100%; 
        top: 50%;
        opacity: 1;
        filter: hue-rotate(90deg);
    }
    75% { 
        height: 70%;
        top: 45%;
        opacity: 0.9;
    }
}

@keyframes proficiency-glitch {
    0%, 100% { 
        box-shadow: 0 0 5px var(--holo-primary);
        filter: brightness(1);
    }
    33% { 
        box-shadow: 0 0 8px var(--holo-glitch1);
        filter: brightness(1.2) hue-rotate(45deg);
        clip-path: inset(0% 5% 0% 0%);
    }
    66% { 
        box-shadow: 0 0 8px var(--holo-glitch2);
        filter: brightness(1.1) hue-rotate(-45deg);
        clip-path: inset(0% 0% 0% 5%);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .skills-holographic-container {
        padding: 20px 10px;
    }
    
    .skill-icon.holo {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    .skill-icon.holo {
        width: 70px;
        height: 70px;
        padding: 10px;
    }
    
    .skill-icon.holo i {
        font-size: 1.8rem;
    }
}