/* Font loaded via HTML link tag for better performance */

:root {
    --bg-primary: #0a0a0a;
    --bg-card: rgba(43, 43, 43, 0.92);
    
    --text-primary: #f5f5f5;
    --text-secondary: #b8b8b8;
    --text-muted: #6a6a6a;
    
    --accent-primary: #8a8a8a;
    --accent-secondary: #aaaaaa;
    --accent-glow: rgba(138, 138, 138, 0.25);
    
    --gradient-main: linear-gradient(135deg, #2b2b2b 0%, #4a4a4a 50%, #6a6a6a 100%);
    
    --border-light: rgba(138, 138, 138, 0.15);
    --shadow-subtle: rgba(0, 0, 0, 0.5);
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-code: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
    
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    overflow-y: scroll;
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
    font-weight: var(--font-weight-regular);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    position: relative;
    cursor: none;
}

@media (max-width: 768px) {
    body {
        cursor: auto;
    }
}

::selection {
    background: var(--accent-secondary);
    color: var(--text-primary);
}

/* ============================================
   ANIMATED BACKGROUND
   ============================================ */

.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.03;
    background-image: 
        linear-gradient(rgba(138, 138, 138, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(138, 138, 138, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridScroll 30s linear infinite;
    will-change: transform;
}

@keyframes gridScroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(60px); }
}

.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.06;
    pointer-events: none;
    z-index: 0;
    animation: float 12s ease-in-out infinite;
    will-change: transform;
    --parallax-y: 0;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #2b2b2b 0%, #6a6a6a 100%);
    top: -300px;
    right: -300px;
}

.orb-2 {
    width: 700px;
    height: 700px;
    background: linear-gradient(135deg, #4a4a4a 0%, #8a8a8a 100%);
    bottom: -350px;
    left: -350px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translate(0, var(--parallax-y, 0)); }
    50% { transform: translate(50px, calc(-50px + var(--parallax-y, 0))); }
}


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

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px) saturate(120%);
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-smooth);
    box-shadow: 0 2px 20px var(--shadow-subtle);
    will-change: transform;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.25rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.375rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.logo a {
    background: linear-gradient(135deg, #ffffff 0%, #d0d0d043 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
    text-decoration: none;
    transition: all var(--transition-fast);
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 100% center; }
}

.logo a:hover {
    transform: scale(1.05);
}

.navbar {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.navbar li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
    position: relative;
    transition: all var(--transition-fast);
}

.navbar li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-smooth);
}

.navbar li a:hover::after {
    width: 100%;
}

.navbar li a:hover {
    color: var(--text-primary);
}


/* ============================================
   PROGRESS BAR
   ============================================ */

#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-main);
    z-index: 1001;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0;
}

section.fade-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin-bottom: 3rem;
    position: relative;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 1rem;
}

h2 i {
    font-size: 2.5rem;
    color: var(--accent-primary);
}

h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-main);
    border-radius: 2px;
}

/* Black & White Glitch Effect for Headers */
section h2 {
    transform-style: preserve-3d;
}

section h2.glitch-active {
    animation: textGlitch 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Glitch text layers (created via JS) */
section h2 .glitch-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    pointer-events: none;
    will-change: transform, opacity;
    backface-visibility: hidden;
}

section h2 .glitch-layer i {
    color: var(--accent-primary);
    font-size: 2.5rem;
}

section h2 .glitch-layer.top {
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

section h2 .glitch-layer.bottom {
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

section h2.glitch-active .glitch-layer.top {
    animation: glitchTop 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

section h2.glitch-active .glitch-layer.bottom {
    animation: glitchBottom 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Underline glitch */
section h2.glitch-active::after {
    animation: underlineGlitch 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    will-change: transform, opacity;
}

@keyframes textGlitch {
    0%, 100% {
        transform: translate(0);
        opacity: 1;
    }
    8% {
        transform: translate(-2px, 0);
        opacity: 0.9;
    }
    16% {
        transform: translate(2px, 0);
        opacity: 0.95;
    }
    24% {
        transform: translate(-3px, -1px);
        opacity: 0.85;
    }
    32% {
        transform: translate(3px, 1px);
        opacity: 0.9;
    }
    40% {
        transform: translate(-2px, 0);
        opacity: 0.92;
    }
    48% {
        transform: translate(1px, -1px);
        opacity: 0.88;
    }
    56% {
        transform: translate(-1px, 1px);
        opacity: 0.94;
    }
    64% {
        transform: translate(2px, 0);
        opacity: 0.96;
    }
    72% {
        transform: translate(-1px, 0);
        opacity: 0.98;
    }
    80% {
        transform: translate(1px, 0);
        opacity: 0.99;
    }
    90% {
        transform: translate(0);
        opacity: 1;
    }
}

@keyframes glitchTop {
    0%, 100% {
        transform: translate(0);
        opacity: 0;
    }
    5% {
        opacity: 0.6;
    }
    12% {
        transform: translate(-4px, 0);
        opacity: 0.55;
    }
    20% {
        transform: translate(5px, 0);
        opacity: 0.5;
    }
    28% {
        transform: translate(-3px, 0);
        opacity: 0.45;
    }
    36% {
        transform: translate(4px, 0);
        opacity: 0.4;
    }
    44% {
        transform: translate(-2px, 0);
        opacity: 0.35;
    }
    52% {
        transform: translate(3px, 0);
        opacity: 0.3;
    }
    60% {
        transform: translate(-1px, 0);
        opacity: 0.2;
    }
    70% {
        transform: translate(1px, 0);
        opacity: 0.1;
    }
    80% {
        opacity: 0;
    }
}

@keyframes glitchBottom {
    0%, 100% {
        transform: translate(0);
        opacity: 0;
    }
    8% {
        opacity: 0.6;
    }
    16% {
        transform: translate(4px, 0);
        opacity: 0.55;
    }
    24% {
        transform: translate(-5px, 0);
        opacity: 0.5;
    }
    32% {
        transform: translate(3px, 0);
        opacity: 0.45;
    }
    40% {
        transform: translate(-4px, 0);
        opacity: 0.4;
    }
    48% {
        transform: translate(2px, 0);
        opacity: 0.35;
    }
    56% {
        transform: translate(-3px, 0);
        opacity: 0.3;
    }
    64% {
        transform: translate(1px, 0);
        opacity: 0.2;
    }
    72% {
        transform: translate(-1px, 0);
        opacity: 0.1;
    }
    82% {
        opacity: 0;
    }
}

@keyframes underlineGlitch {
    0%, 100% {
        transform: scaleX(1) translateX(0);
        opacity: 1;
    }
    8% {
        transform: scaleX(0.92) translateX(-6px);
        opacity: 0.7;
    }
    16% {
        transform: scaleX(1.04) translateX(4px);
        opacity: 0.85;
    }
    24% {
        transform: scaleX(0.96) translateX(-4px);
        opacity: 0.75;
    }
    32% {
        transform: scaleX(1.02) translateX(3px);
        opacity: 0.9;
    }
    40% {
        transform: scaleX(0.98) translateX(-3px);
        opacity: 0.8;
    }
    48% {
        transform: scaleX(1.01) translateX(2px);
        opacity: 0.92;
    }
    56% {
        transform: scaleX(0.99) translateX(-2px);
        opacity: 0.88;
    }
    64% {
        transform: scaleX(1.005) translateX(1px);
        opacity: 0.95;
    }
    72% {
        transform: scaleX(0.995) translateX(-1px);
        opacity: 0.97;
    }
    80% {
        transform: scaleX(1) translateX(0);
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

#about {
    padding-top: 10rem;
}

#about h2 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.05em;
    line-height: 1.1;
    margin-bottom: 2.5rem;
    opacity: 1;
}

#about p {
    font-size: clamp(1.0625rem, 2.25vw, 1.3125rem);
    line-height: 1.8;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    font-weight: var(--font-weight-regular);
    margin-bottom: 1.75rem;
    max-width: 900px;
}

.quote {
    margin: 3rem 0;
    padding: 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    font-style: italic;
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--transition-smooth);
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
    letter-spacing: -0.01em;
    font-weight: var(--font-weight-regular);
    box-shadow: 0 4px 20px var(--shadow-subtle);
}

.quote::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(138, 138, 138, 0.12), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.quote:hover::before {
    transform: translateX(100%);
}

.quote:hover {
    box-shadow: 0 8px 30px var(--shadow-subtle);
}

.quote-author {
    display: block;
    margin-top: 1.5rem;
    color: var(--accent-primary);
    font-family: var(--font-code);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
}

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

.skills-grouped {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
    box-shadow: 0 2px 10px var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.skill-category:hover {
    border-color: transparent;
    box-shadow: 0 10px 40px var(--shadow-subtle);
}

.skill-category::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                conic-gradient(from var(--border-angle, 0deg), #3a3a3a, #6a6a6a, #8a8a8a, #6a6a6a, #3a3a3a) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.skill-category::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(138, 138, 138, 0.15), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.skill-category:hover::before {
    opacity: 1;
    animation: rotateBorder 4s linear infinite;
}

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

.skill-category h4 {
    color: var(--accent-primary);
    font-family: var(--font-code);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
    font-weight: var(--font-weight-semibold);
}

.skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-chips span {
    padding: 0.35rem 0.75rem;
    background: rgba(138, 138, 138, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
    transition: all var(--transition-fast);
}

.skill-chips span:hover {
    background: rgba(170, 170, 170, 0.15);
    border-color: var(--accent-secondary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}

@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.project {
    background: var(--bg-card);
    padding: 1.75rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
    box-shadow: 0 2px 10px var(--shadow-subtle);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 0;
}

.project:hover {
    border-color: transparent;
    box-shadow: 0 10px 40px var(--shadow-subtle);
}

/* Animated gradient border */
.project::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                conic-gradient(from var(--border-angle, 0deg), #3a3a3a, #6a6a6a, #8a8a8a, #6a6a6a, #3a3a3a) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

/* Cursor-reactive glow overlay */
.project::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(138, 138, 138, 0.15), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.project:hover::before {
    opacity: 1;
    animation: rotateBorder 4s linear infinite;
}

.project:hover::after {
    opacity: 1;
}

@keyframes rotateBorder {
    to {
        --border-angle: 360deg;
    }
}

@property --border-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.project h3 {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.project p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: clamp(0.875rem, 1.25vw, 0.9375rem);
    letter-spacing: -0.01em;
    font-weight: var(--font-weight-regular);
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.project-tags span {
    padding: 0.3rem 0.7rem;
    background: rgba(138, 138, 138, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    font-size: 0.6875rem;
    color: var(--accent-secondary);
    font-family: var(--font-code);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
    transition: all var(--transition-fast);
}

.project-tags span:hover {
    background: rgba(170, 170, 170, 0.15);
    border-color: var(--accent-secondary);
    transform: translateY(-2px);
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.view-on-github {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: rgba(138, 138, 138, 0.08);
    border: 1px solid var(--accent-primary);
    border-radius: 50px;
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-code);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.view-on-github i {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.view-on-github:hover i {
    transform: translateX(3px);
}

.view-on-github::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(170, 170, 170, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s;
}

.view-on-github:hover::before {
    width: 300px;
    height: 300px;
}

.view-on-github:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px var(--shadow-subtle);
}

/* ============================================
   EXPERIENCE SECTION - TABS
   ============================================ */

#experience {
    justify-content: flex-start;
    padding-top: 8rem;
    min-height: 100vh;
}

#experience .container {
    margin: 0 auto;
    width: 100%;
    max-width: 1100px;
}

.experience-tabs {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    column-gap: 3rem;
    align-items: flex-start;
}

.tab-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: sticky;
    top: 120px;
    width: 180px;
}

.tab-list::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--border-light);
    border-radius: 2px;
}

.tab-btn {
    position: relative;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-code);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tab-btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--accent-secondary);
    transform: scaleY(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(138, 138, 138, 0.05);
}

.tab-btn.active {
    color: var(--text-primary);
}

.tab-btn.active::before {
    transform: scaleY(1);
}

.tab-panels {
    width: 100%;
    max-width: 820px;
    min-width: 0;
    min-height: 300px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.tab-panel h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    line-height: 1.35;
}

.tab-panel h3 .company {
    color: var(--accent-secondary);
    font-weight: var(--font-weight-medium);
}

.tab-panel .date {
    font-family: var(--font-code);
    font-size: 0.8125rem;
    color: var(--accent-primary);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.03em;
    display: block;
    margin-bottom: 1.5rem;
}

.tab-panel ul {
    list-style: none;
    padding: 0;
}

.tab-panel ul li {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.7;
    font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
    letter-spacing: -0.01em;
    font-weight: var(--font-weight-regular);
}

.tab-panel ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
    font-size: 0.875rem;
}

/* ============================================
   EDUCATION SECTION
   ============================================ */

.education-item {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    margin-bottom: 2rem;
    transition: box-shadow var(--transition-smooth), border-color var(--transition-smooth);
    box-shadow: 0 2px 10px var(--shadow-subtle);
    position: relative;
    overflow: hidden;
}

.education-item:hover {
    border-color: transparent;
    box-shadow: 0 10px 40px var(--shadow-subtle);
}

.education-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                conic-gradient(from var(--border-angle, 0deg), #3a3a3a, #6a6a6a, #8a8a8a, #6a6a6a, #3a3a3a) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.education-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(138, 138, 138, 0.15), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.education-item:hover::before {
    opacity: 1;
    animation: rotateBorder 4s linear infinite;
}

.education-item:hover::after {
    opacity: 1;
}

.education-item h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.625rem);
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    line-height: 1.35;
}

.education-item p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
    line-height: 1.7;
    letter-spacing: -0.01em;
    font-weight: var(--font-weight-regular);
}

.education-item p strong {
    color: var(--accent-primary);
    font-family: var(--font-code);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

#contact {
    text-align: center;
}

#contact h2 {
    justify-content: center;
    margin: 0 auto 3rem;
}

#contact p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
}

#contact i {
    color: var(--accent-primary);
    font-size: 1.5rem;
    transition: all var(--transition-fast);
}

#contact a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
}

#contact a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-smooth);
}

#contact a:hover::after {
    width: 100%;
}

#contact a:hover {
    color: var(--accent-primary);
}

#contact p:hover i {
    transform: scale(1.2) translateY(-2px);
}

.resume-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 3rem;
    padding: 1rem 2rem;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--accent-primary);
    border-radius: 50px;
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.01em;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow-subtle);
}

.resume-download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(138, 138, 138, 0.12), transparent);
    transition: left 0.6s;
}

.resume-download-btn:hover::before {
    left: 100%;
}

.resume-download-btn .material-icons {
    font-size: 1.5rem;
    transition: transform var(--transition-fast);
}

.resume-download-btn:hover {
    transform: translateY(-4px);
    border-color: var(--accent-secondary);
    box-shadow: 0 8px 30px var(--accent-glow);
    background: rgba(43, 43, 43, 0.9);
}

.resume-download-btn:hover .material-icons {
    transform: translateY(-2px);
}

.resume-download-btn:active {
    transform: translateY(-2px);
}

.resume-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.resume-actions .resume-download-btn {
    margin-top: 0;
}

.resume-source-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 50px;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-code);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
    transition: all var(--transition-smooth);
}

.resume-source-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.resume-source-btn::after {
    display: none;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-family: var(--font-code);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-regular);
    letter-spacing: 0.02em;
    line-height: 1.6;
}

.keyboard-nav-hint {
    position: fixed;
    left: 1rem;
    bottom: 2rem;
    padding: 0.5rem 0.75rem;
    background: rgba(10, 10, 10, 0.25);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(138, 138, 138, 0.15);
    border-radius: 6px;
    font-family: var(--font-code);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
    opacity: 0.5;
    z-index: 999;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
    text-transform: uppercase;
}


/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-main);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-smooth);
    z-index: 1000;
    box-shadow: 0 4px 20px var(--shadow-subtle);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px var(--accent-glow);
}

#back-to-top:active {
    transform: translateY(-2px);
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--accent-primary);
    transition: all var(--transition-fast);
}

.mobile-nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    transition: right 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-left: 1px solid var(--border-light);
    box-shadow: -5px 0 20px var(--shadow-subtle);
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-links {
    list-style: none;
    padding: 6rem 2rem;
}

.mobile-nav-links li {
    margin: 2.5rem 0;
}

.mobile-nav-links li a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
    transition: all var(--transition-fast);
    display: block;
}

.mobile-nav-links li a:hover {
    color: var(--accent-primary);
    transform: translateX(10px);
}

.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

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

@media (max-width: 768px) {
    .header-container {
        padding: 1rem 1.5rem;
    }
    
    .navbar {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: flex;
    }
    
    main {
        padding: 0 1.5rem;
    }
    
    section {
        min-height: auto;
        padding: 4rem 0;
    }
    
    /* Reduce expensive effects on mobile */
    .quote,
    .skill-category,
    .project,
    .education-item {
        backdrop-filter: none;
        background: rgba(43, 43, 43, 0.95);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    h2 {
        font-size: 2.25rem;
    }
    
    h2 i {
        font-size: 2rem;
    }
    
    #about {
        padding-top: 8rem;
    }
    
    #about h2 {
        font-size: 2.5rem;
    }
    
    #about p {
        font-size: 1.1rem;
    }
    
    /* Mobile tabs - horizontal scrolling */
    .experience-tabs {
        grid-template-columns: 1fr;
        row-gap: 1.5rem;
    }
    
    .tab-list {
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding-bottom: 0.5rem;
        width: auto;
        position: static;
    }
    
    .tab-list::-webkit-scrollbar {
        display: none;
    }
    
    .tab-list::before {
        top: auto;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 2px;
    }
    
    .tab-btn {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
    
    .tab-btn::before {
        top: auto;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 2px;
        transform: scaleX(0);
    }
    
    .tab-btn.active::before {
        transform: scaleX(1);
    }
    
    .tab-panel h3 {
        font-size: 1.125rem;
    }
    
    .tab-panel ul li {
        font-size: 0.9375rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.no-scroll {
    overflow: hidden;
}

/* ============================================
   LAZY LOAD ANIMATIONS
   ============================================ */

.fade-in-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   ACCESSIBILITY - REDUCED MOTION
   ============================================ */

/* ============================================
   CUSTOM CURSOR
   ============================================ */

.cursor {
    pointer-events: none;
    z-index: 10000;
}

.cursor__ball {
    position: fixed;
    top: 0;
    left: 0;
    mix-blend-mode: difference;
    pointer-events: none;
    will-change: transform;
    z-index: 10001;
    transform-origin: center center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.cursor__ball--big {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--text-primary);
    margin-left: -15px;
    margin-top: -15px;
    transition: transform 0.15s cubic-bezier(0.25, 0.1, 0.25, 1), 
                width 0.15s cubic-bezier(0.25, 0.1, 0.25, 1), 
                height 0.15s cubic-bezier(0.25, 0.1, 0.25, 1);
    transform: translate3d(0, 0, 0);
}

.cursor__ball--small {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-primary);
    margin-left: -4px;
    margin-top: -4px;
}

@media (max-width: 768px) {
    .cursor {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cursor__ball {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .gradient-orb,
    .cyber-grid {
        animation: none !important;
    }
    
    section {
        opacity: 1 !important;
        transform: none !important;
    }
}

@media (max-width: 768px) {
    .keyboard-nav-hint {
        display: none;
    }
}

/* ============================================
   PROJECT PAGINATION
   ============================================ */

.projects-grid {
    min-height: 450px; /* Consistent height for pagination */
}

.projects-grid .project {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 0.75rem 0;
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 50%;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
    transform: scale(1.1);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.pagination-btn i {
    font-size: 0.875rem;
}

.pagination-dots {
    display: flex;
    gap: 0.5rem;
}

.pagination-dot {
    width: 8px;
    height: 8px;
    background: var(--border-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.pagination-dot:hover {
    background: var(--text-muted);
}

.pagination-dot.active {
    background: var(--text-secondary);
    width: 20px;
    border-radius: 4px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}