/* ===========================
   SKILLS PAGE STYLES
   =========================== */

/* ===========================
   PAGE HEADER
   =========================== */

.page-header {
    padding: var(--spacing-2xl) 0;
    background: var(--color-off-white);
    border-bottom: var(--border-extra-thick) solid var(--color-pure-black);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 10px,
        var(--color-concrete-gray) 10px,
        var(--color-concrete-gray) 20px
    );
    opacity: 0.5;
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-family: var(--font-display);
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(90deg, 
        var(--color-electric-blue) 0%, 
        var(--color-cyber-lime) 50%, 
        var(--color-hot-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.25rem;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* ===========================
   SKILLS SECTION
   =========================== */

.skills-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-off-white);
}

.skills-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
}

/* ===========================
   SKILL BLOCKS
   =========================== */

.skill-block {
    border: var(--border-thick) solid var(--color-pure-black);
    padding: var(--spacing-2xl);
    position: relative;
    background: var(--color-off-white);
    min-height: 400px;
}

.skill-block.frontend {
    background: linear-gradient(45deg, 
        var(--color-electric-blue) 0%, 
        var(--color-electric-blue) 10%, 
        var(--color-off-white) 10%);
    box-shadow: var(--shadow-offset-lg) var(--shadow-offset-lg) 0 var(--color-electric-blue);
}

.skill-block.backend {
    background: linear-gradient(-45deg, 
        var(--color-cyber-lime) 0%, 
        var(--color-cyber-lime) 10%, 
        var(--color-off-white) 10%);
    box-shadow: var(--shadow-offset-lg) var(--shadow-offset-lg) 0 var(--color-cyber-lime);
}

.skill-block.blockchain {
    background: linear-gradient(135deg, 
        var(--color-hot-pink) 0%, 
        var(--color-hot-pink) 10%, 
        var(--color-off-white) 10%);
    box-shadow: var(--shadow-offset-lg) var(--shadow-offset-lg) 0 var(--color-hot-pink);
}

.skill-block.ai {
    background: linear-gradient(-135deg, 
        var(--color-purple-haze) 0%, 
        var(--color-purple-haze) 10%, 
        var(--color-off-white) 10%);
    box-shadow: var(--shadow-offset-lg) var(--shadow-offset-lg) 0 var(--color-purple-haze);
}

.block-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: var(--border-thick) solid var(--color-pure-black);
}

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

.block-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 900;
    text-transform: uppercase;
}

/* ===========================
   FRONTEND - STACKED CARDS
   =========================== */

.skills-cards {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    position: relative;
}

.skill-card {
    background: var(--color-off-white);
    border: var(--border-thick) solid var(--color-pure-black);
    padding: var(--spacing-md);
    transform: rotate(var(--rotate));
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    box-shadow: 4px 4px 0 var(--color-pure-black);
}

.skill-card:hover {
    transform: rotate(0deg) scale(1.05);
    z-index: 10;
    box-shadow: 8px 8px 0 var(--color-electric-blue);
}

.skill-card .skill-name {
    font-weight: 700;
    text-transform: uppercase;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.skill-card .skill-level {
    font-size: 0.75rem;
    color: var(--color-electric-blue);
    font-weight: 600;
}

/* ===========================
   BACKEND - HEXAGON LAYOUT
   =========================== */

.skills-hexagon {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.hex-container {
    display: grid;
    grid-template-columns: repeat(3, 80px);
    gap: 10px;
    transform: rotate(0deg);
}

.hex-item {
    width: 80px;
    height: 80px;
    background: var(--color-cyber-lime);
    border: var(--border-thick) solid var(--color-pure-black);
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.hex-item:nth-child(even) {
    margin-top: 40px;
}

.hex-item:hover {
    transform: scale(1.1);
    background: var(--color-pure-black);
}

.hex-inner {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    text-align: center;
}

.hex-item:hover .hex-inner {
    color: var(--color-cyber-lime);
}

/* ===========================
   BLOCKCHAIN - NETWORK NODES
   =========================== */

.skills-network {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 350px;
    position: relative;
}

.network-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 350px;
}

.node {
    position: absolute;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-off-white);
    border: var(--border-thick) solid var(--color-pure-black);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
}

.node.central {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-hot-pink);
    color: white;
    font-size: 1.125rem;
    z-index: 3;
}

.node:nth-child(2) { top: 10%; left: 20%; }
.node:nth-child(3) { top: 10%; right: 20%; }
.node:nth-child(4) { top: 30%; left: 5%; }
.node:nth-child(5) { top: 30%; right: 5%; }
.node:nth-child(6) { bottom: 30%; left: 5%; }
.node:nth-child(7) { bottom: 30%; right: 5%; }
.node:nth-child(8) { bottom: 10%; left: 20%; }
.node:nth-child(9) { bottom: 10%; right: 20%; }
.node:nth-child(10) { top: 50%; left: 10%; }
.node:nth-child(11) { top: 50%; right: 10%; }

.node:hover {
    transform: scale(1.1);
    background: var(--color-electric-blue);
    color: white;
    z-index: 4;
}

.connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.connections line {
    stroke: var(--color-pure-black);
    stroke-width: 2;
    stroke-dasharray: 5, 5;
    animation: dash 20s linear infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: -100;
    }
}

/* ===========================
   AI/ML - ORBITAL LAYOUT
   =========================== */

.skills-orbit {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    position: relative;
    overflow: hidden;
}

.orbit-container {
    position: relative;
    width: 350px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--color-purple-haze);
    color: white;
    border: var(--border-thick) solid var(--color-pure-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.25rem;
    z-index: 10;
    box-shadow: 0 0 20px rgba(123, 44, 191, 0.3);
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: var(--border-thin) dashed var(--color-pure-black);
    border-radius: 50%;
    pointer-events: none;
}

.orbit-ring.ring-1 {
    width: 200px;
    height: 200px;
    animation: rotate 25s linear infinite;
}

.orbit-ring.ring-2 {
    width: 280px;
    height: 280px;
    animation: rotate 35s linear infinite reverse;
}

.orbit-item {
    position: absolute;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-off-white);
    border: var(--border-medium) solid var(--color-pure-black);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    white-space: nowrap;
    box-shadow: 2px 2px 0 var(--color-purple-haze);
    pointer-events: all;
    cursor: pointer;
    transition: all 0.3s ease;
}

.orbit-item:hover {
    background: var(--color-purple-haze);
    color: white;
    transform: scale(1.1);
    z-index: 15;
}

/* Ring 1 - Inner orbit items positioning */
.orbit-ring.ring-1 .orbit-item:nth-child(1) {
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.orbit-ring.ring-1 .orbit-item:nth-child(2) {
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%) rotate(180deg);
}

.orbit-ring.ring-1 .orbit-item:nth-child(3) {
    top: 50%;
    right: -15px;
    transform: translateY(-50%) rotate(90deg);
}

/* Ring 2 - Outer orbit items positioning */
.orbit-ring.ring-2 .orbit-item:nth-child(1) {
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.orbit-ring.ring-2 .orbit-item:nth-child(2) {
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%) rotate(180deg);
}

.orbit-ring.ring-2 .orbit-item:nth-child(3) {
    top: 50%;
    left: -15px;
    transform: translateY(-50%) rotate(-90deg);
}

/* Keep text upright during rotation */
@keyframes rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Counter-rotation for text readability */
@keyframes counterRotate {
    from {
        transform: translateX(-50%) rotate(0deg);
    }
    to {
        transform: translateX(-50%) rotate(-360deg);
    }
}

/* ===========================
   INFRASTRUCTURE SECTION
   =========================== */

.infra-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-concrete-gray);
}

.infra-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.infra-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
}

.infra-category {
    background: var(--color-off-white);
    border: var(--border-thick) solid var(--color-pure-black);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--color-pure-black);
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: var(--border-medium) solid var(--color-pure-black);
}

/* Skill Bars */
.skill-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-bar-item {
    position: relative;
}

.skill-bar-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.skill-percentage {
    color: var(--color-electric-blue);
    font-weight: 700;
}

.skill-bar-track {
    width: 100%;
    height: 30px;
    background: var(--color-concrete-gray);
    border: var(--border-thick) solid var(--color-pure-black);
    position: relative;
}

.skill-bar {
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        var(--color-electric-blue),
        var(--color-electric-blue) 10px,
        var(--color-cyber-lime) 10px,
        var(--color-cyber-lime) 20px
    );
    width: 0;
    transition: width 1.5s ease;
}

.skill-bar.animated {
    width: calc(var(--level) * 1%);
}

/* ===========================
   CERTIFICATIONS SECTION
   =========================== */

.certifications-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-pure-black);
}

.cert-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.certifications-section .section-title {
    color: var(--color-off-white);
    text-align: center;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.cert-card {
    background: var(--color-off-white);
    border: var(--border-thick) solid var(--color-cyber-lime);
    padding: var(--spacing-xl);
    position: relative;
    transform: rotate(-1deg);
    transition: all 0.3s ease;
}

.cert-card:nth-child(2) {
    transform: rotate(1deg);
}

.cert-card:nth-child(3) {
    transform: rotate(-0.5deg);
}

.cert-card:hover {
    transform: rotate(0deg) scale(1.05);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--color-cyber-lime);
}

.cert-stamp {
    position: absolute;
    top: -20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: var(--color-mint-green);
    border: var(--border-thick) solid var(--color-pure-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    transform: rotate(15deg);
}

.cert-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.cert-issuer {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cert-date {
    font-size: 0.875rem;
    color: var(--color-purple-haze);
    font-weight: 700;
}

/* ===========================
   TOOLS & TECHNOLOGIES
   =========================== */

.tools-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-off-white);
}

.tools-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    text-align: center;
}

.tools-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.tool-tag {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-off-white);
    border: var(--border-thick) solid var(--color-pure-black);
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tool-tag.size-lg {
    font-size: 1.25rem;
    padding: var(--spacing-md) var(--spacing-xl);
}

.tool-tag.size-md {
    font-size: 1rem;
}

.tool-tag.size-sm {
    font-size: 0.875rem;
    padding: var(--spacing-xs) var(--spacing-md);
}

.tool-tag:nth-child(odd) {
    transform: rotate(-2deg);
    background: var(--color-butter-yellow);
}

.tool-tag:nth-child(even) {
    transform: rotate(2deg);
    background: var(--color-mint-green);
}

.tool-tag:hover {
    transform: rotate(0deg) scale(1.1);
    background: var(--color-electric-blue);
    color: white;
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--color-pure-black);
    z-index: 10;
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

@media (max-width: 768px) {
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .infra-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .network-container {
        transform: scale(0.8);
    }
    
    .orbit-container {
        transform: scale(0.8);
    }
    
    .hex-container {
        transform: scale(0.8);
    }
}

@media (max-width: 480px) {
    .skill-block {
        padding: var(--spacing-md);
        min-height: 300px;
    }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    .tool-tag {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .tool-tag.size-lg {
        font-size: 1rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .skill-card,
    .hex-item,
    .node,
    .orbit-item,
    .tool-tag {
        min-height: 44px;
    }
}