/* ===================================
   CSS Custom Properties (Variables)
   =================================== */
:root {
    /* Colors - Cyberpunk Theme */
    --primary-cyan: #00F7FF;
    --primary-magenta: #FF10F0;
    --bg-dark: #0D1117;
    --bg-darker: #010409;
    --text-white: #FFFFFF;
    --text-gray: #8B949E;
    --accent-purple: #7C3AED;

    /* Spacing */
    --section-padding: 100px 20px;
    --container-max-width: 1200px;

    /* Typography */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions - Optimized for smoothness */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

html.smooth-scroll {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background-color: var(--primary-cyan);
    color: var(--bg-dark);
}

/* ===================================
   Custom Cursor
   =================================== */
.cursor,
.cursor-follower {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    will-change: transform;
    transform: translate3d(0, 0, 0);
}

.cursor {
    width: 10px;
    height: 10px;
    background-color: var(--primary-cyan);
    box-shadow: 0 0 20px var(--primary-cyan);
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-magenta);
    transition: transform 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        height 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 0 30px var(--primary-magenta);
}

/* ===================================
   Particle Background
   =================================== */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(ellipse at bottom, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

#particles-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(2px 2px at 20% 30%, var(--primary-cyan), transparent),
        radial-gradient(2px 2px at 60% 70%, var(--primary-magenta), transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent);
    background-size: 200% 200%;
    animation: stars 20s linear infinite;
    opacity: 0.3;
}

@keyframes stars {
    0% {
        background-position: 0% 0%;
    }

    100% {
        background-position: 100% 100%;
    }
}

/* ===================================
   Container & Section
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    text-align: center;
    margin-bottom: 60px;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-magenta));
    border-radius: 2px;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    flex-direction: column;
    text-align: center;
    position: relative;
}

.glitch-wrapper {
    margin-bottom: 30px;
}

.glitch {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    text-transform: uppercase;
    position: relative;
    color: var(--text-white);
    letter-spacing: 0.1em;
    animation: glitch-main 3s infinite;
    will-change: transform;
    transform: translate3d(0, 0, 0);
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--primary-cyan);
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-before 3s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--primary-magenta);
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-after 2.5s infinite linear alternate-reverse;
}

@keyframes glitch-main {

    0%,
    100% {
        transform: translate(0);
    }

    20% {
        transform: translate(-2px, 2px);
    }

    40% {
        transform: translate(-2px, -2px);
    }

    60% {
        transform: translate(2px, 2px);
    }

    80% {
        transform: translate(2px, -2px);
    }
}

@keyframes glitch-before {
    0% {
        clip: rect(24px, 9999px, 90px, 0);
    }

    25% {
        clip: rect(50px, 9999px, 100px, 0);
    }

    50% {
        clip: rect(10px, 9999px, 60px, 0);
    }

    75% {
        clip: rect(70px, 9999px, 120px, 0);
    }

    100% {
        clip: rect(30px, 9999px, 80px, 0);
    }
}

@keyframes glitch-after {
    0% {
        clip: rect(85px, 9999px, 140px, 0);
    }

    25% {
        clip: rect(20px, 9999px, 70px, 0);
    }

    50% {
        clip: rect(60px, 9999px, 110px, 0);
    }

    75% {
        clip: rect(40px, 9999px, 90px, 0);
    }

    100% {
        clip: rect(75px, 9999px, 125px, 0);
    }
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-gray);
    margin-bottom: 50px;
    min-height: 60px;
}

.typing-text {
    color: var(--primary-cyan);
}

.cursor-blink {
    animation: blink 1s infinite;
    color: var(--primary-magenta);
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    will-change: transform, box-shadow;
    transform: translate3d(0, 0, 0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
        height 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-magenta));
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 247, 255, 0.5);
}

.btn-primary:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 50px rgba(0, 247, 255, 0.8);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-magenta);
    border: 2px solid var(--primary-magenta);
    box-shadow: 0 0 20px rgba(255, 16, 240, 0.3);
}

.btn-secondary:hover {
    background: var(--primary-magenta);
    color: var(--bg-dark);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 50px rgba(255, 16, 240, 0.8);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: bounce 2s infinite;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-cyan);
    border-radius: 20px;
    margin: 0 auto 10px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 10px;
    background: var(--primary-cyan);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
    0% {
        top: 10px;
        opacity: 1;
    }

    100% {
        top: 30px;
        opacity: 0;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

.scroll-indicator p {
    font-size: 0.9rem;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===================================
   About Section
   =================================== */
.about-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.about-content {
    max-width: 800px;
    margin: 0 auto 60px;
}

.about-text {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    text-align: center;
    line-height: 1.8;
    color: var(--text-gray);
}

.highlight {
    color: var(--primary-cyan);
    font-weight: 600;
    position: relative;
}

.subsection-title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-magenta);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.tech-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 247, 255, 0.3);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    will-change: transform, border-color, box-shadow;
    transform: translate3d(0, 0, 0);
}

.tech-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 247, 255, 0.2), transparent);
    transition: left 0.5s;
}

.tech-item:hover::before {
    left: 100%;
}

.tech-item:hover {
    transform: translateY(-12px) scale(1.05);
    border-color: var(--primary-cyan);
    box-shadow: 0 15px 50px rgba(0, 247, 255, 0.4);
}

.tech-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.tech-name {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--text-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===================================
   Projects Section
   =================================== */
.projects-section {
    background: var(--bg-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 16, 240, 0.3);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    transition: var(--transition-slow);
    overflow: hidden;
    will-change: transform, border-color, box-shadow;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
}

.project-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 16, 240, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.project-card:hover .project-glow {
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    border-color: var(--primary-magenta);
    box-shadow: 0 25px 70px rgba(255, 16, 240, 0.5);
}

.project-content {
    position: relative;
    z-index: 1;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-cyan);
}

.project-description {
    color: var(--text-gray);
    margin-bottom: 25px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.tag {
    background: rgba(0, 247, 255, 0.1);
    border: 1px solid var(--primary-cyan);
    color: var(--primary-cyan);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.project-link {
    color: var(--primary-magenta);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    display: inline-block;
}

.project-link:hover {
    color: var(--primary-cyan);
    transform: translateX(5px);
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.contact-subtitle {
    text-align: center;
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-gray);
    margin-bottom: 60px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--primary-cyan);
    border-radius: 50px;
    color: var(--text-white);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    will-change: transform, box-shadow;
    transform: translate3d(0, 0, 0);
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--primary-cyan);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.7s cubic-bezier(0.34, 1.56, 0.64, 1),
        height 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: -1;
}

.contact-btn:hover::before {
    width: 400px;
    height: 400px;
}

.contact-btn:hover {
    color: var(--bg-dark);
    border-color: var(--primary-cyan);
    box-shadow: 0 15px 50px rgba(0, 247, 255, 0.6);
    transform: translateY(-8px) scale(1.05);
}

.contact-btn .icon {
    width: 24px;
    height: 24px;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-darker);
    padding: 30px 20px;
    text-align: center;
    border-top: 1px solid rgba(0, 247, 255, 0.2);
}

.footer p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .section {
        padding: 60px 20px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .contact-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Scroll Animations (AOS)
   =================================== */
[data-aos] {
    opacity: 0;
    transition: opacity 1s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.8);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}