/* Import Poppins Font */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* CSS Variables - Dark Black with Bright Highlights */
:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --gradient-start: #a855f7;
    --gradient-end: #ec4899;
    --accent-blue: #00ffff;
    --accent-green: #00ff00;
    --accent-purple: #a855f7;
    --accent-orange: #ff00ff;
    --accent-red: #ff0080;
    --accent-yellow: #ffff00;
    --accent-pink: #ff00ff;
    --border-color: #2a2a2a;
    --transition: all 0.3s ease;
    --glow-color: rgba(168, 85, 247, 0.6);
}

/* Light Mode Variables */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e0e0e0;
    --text-primary: #000000;
    --text-secondary: #666666;
    --border-color: #d0d0d0;
    --glow-color: rgba(168, 85, 247, 0.3);
}


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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 0, 110, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(131, 56, 236, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 217, 255, 0.02) 0%, transparent 50%);
    animation: backgroundShift 40s ease-in-out infinite;
}

@keyframes backgroundShift {

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

    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* Animated Grid Pattern */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 0, 110, 0.01) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 0, 110, 0.01) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: gridMove 60s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(80px, 80px);
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

/* Animated Background Orbs */
.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--gradient-start) 0%, transparent 70%);
    border-radius: 50%;
    top: -250px;
    right: -100px;
    opacity: 0.15;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    border-radius: 50%;
    bottom: -200px;
    left: -100px;
    opacity: 0.1;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {

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

    50% {
        transform: translate(50px, 50px) scale(1.1);
    }
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: #888888;
}

.hero-name {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    line-height: 1.2;
    text-shadow: 0 0 30px rgba(168, 85, 247, 0.8);
    -webkit-text-stroke: 2px #ffffff;
    paint-order: stroke fill;
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 500;
    margin-bottom: 2rem;
    min-height: 2.5rem;
    color: var(--text-primary);
}

.typing-text {
    background: linear-gradient(135deg, #ff00ff, #00ffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(255, 0, 255, 0.8);
}


.cursor {
    color: var(--gradient-start);
    animation: blink 1s infinite;
    font-weight: 300;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

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


.hero-nav {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.hero-nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 400;
    transition: var(--transition);
    position: relative;
}

.hero-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    transition: var(--transition);
}

.hero-nav a:hover::after {
    width: 100%;
}

.hero-nav a:hover {
    color: var(--gradient-start);
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--accent-blue), var(--accent-green));
    border-radius: 2px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        width: 100px;
        opacity: 1;
    }

    50% {
        width: 150px;
        opacity: 0.7;
    }
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--accent-blue), var(--accent-green));
    opacity: 0;
    transition: var(--transition);
}

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

.project-card:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px var(--glow-color);
    background: linear-gradient(90deg, rgba(168, 85, 247, 0.1) 0%, var(--bg-secondary) 10%);
    \n
}

.project-header {
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.tech-badge {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1), rgba(131, 56, 236, 0.1));
    color: var(--text-primary);
    padding: 0.8rem 0.6rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 400;
    border: 1px solid var(--gradient-start);
    transition: var(--transition);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-width: 70px;
}

.tech-badge i {
    font-size: 1.8rem;
    margin: 0;
}

.tech-name {
    font-size: 0.7rem;
    text-align: center;
    line-height: 1.2;
    white-space: nowrap;
}

.tech-badge:hover {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    transform: scale(1.05);
    box-shadow: 0 0 15px var(--glow-color);
}

.project-link {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border: 2px solid var(--text-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: var(--transition);
}

.project-link:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

/* Skills Section - Unified */
.skill-tags-unified {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}

/* Skills Section - Original Grid (keep for backward compatibility) */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.skill-category-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.skill-category-title i {
    color: var(--gradient-start);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 400;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-tag i {
    font-size: 1.2rem;
}


.skill-tag:hover {
    border-color: var(--accent-purple);
    transform: translateX(10px);
    box-shadow: 0 8px 25px var(--glow-color);
    background: linear-gradient(90deg, rgba(168, 85, 247, 0.1) 0%, var(--bg-secondary) 10%);
}

.skill-tag:nth-child(3n):hover {
    border-color: var(--accent-purple);
    box-shadow: 0 8px 25px var(--glow-color);
}

.skill-tag:nth-child(3n+1):hover {
    border-color: var(--accent-purple);
    box-shadow: 0 8px 25px var(--glow-color);
}

/* Experience & Education Timeline */
.timeline {
    max-width: 800px;
    margin: 3rem auto;
    position: relative;
}

.timeline-item {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--gradient-start);
    transition: var(--transition);
    position: relative;
}

.timeline-item:nth-child(2n) {
    border-left-color: var(--accent-blue);
}

.timeline-item:nth-child(3n) {
    border-left-color: var(--accent-purple);
}

.timeline-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px var(--glow-color);
    background: linear-gradient(90deg, rgba(168, 85, 247, 0.1) 0%, var(--bg-secondary) 10%);
}

.timeline-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-institution,
.timeline-company {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.timeline-period {
    color: var(--gradient-start);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.timeline-description,
.experience-list {
    color: var(--text-secondary);
    line-height: 1.8;
}

.experience-list {
    list-style: none;
    padding-left: 0;
}

.experience-list li {
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    position: relative;
}

.experience-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--gradient-start);
    font-weight: bold;
}

.certificate-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--gradient-start);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.certificate-link:hover {
    color: var(--gradient-end);
}

/* About Section */
.about {
    background-color: var(--bg-secondary);
    padding: 5rem 0;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-secondary);
    text-align: center;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 2px solid var(--text-primary);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.3rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-color: transparent;
    transform: translateY(-3px);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.contact-item i {
    color: var(--gradient-start);
    font-size: 1.3rem;
}

.contact-item a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--gradient-start);
}

/* Achievements */
.achievements-list {
    max-width: 800px;
    margin: 3rem auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.achievement-item {
    background-color: var(--bg-secondary);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border-left: 4px solid var(--gradient-start);
    transition: var(--transition);
}

.achievement-item:hover {
    transform: translateX(10px);
}

.achievement-item i {
    font-size: 2rem;
    color: var(--gradient-start);
}

.achievement-item p {
    color: var(--text-secondary);
    margin: 0;
}

.achievement-link {
    color: var(--gradient-start);
    text-decoration: none;
    font-weight: 500;
}

.achievement-link:hover {
    color: var(--gradient-end);
}

/* Certifications */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.cert-card {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--gradient-start);
    box-shadow: 0 10px 30px rgba(255, 0, 110, 0.2);
}

.cert-card i {
    font-size: 3rem;
    color: var(--gradient-start);
    margin-bottom: 1rem;
}

.cert-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.cert-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-color: transparent;
    transform: rotate(180deg);
}

/* Loader */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

#loader::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top-color: var(--gradient-start);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

#loader.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Animated Particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, var(--gradient-start), transparent);
    opacity: 0.06;
    animation: particleFloat 25s infinite ease-in-out;
}

.particle:nth-child(1) {
    width: 60px;
    height: 60px;
    top: 15%;
    left: 10%;
    background: radial-gradient(circle, var(--gradient-start), transparent);
    animation-duration: 35s;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    width: 50px;
    height: 50px;
    top: 65%;
    left: 85%;
    background: radial-gradient(circle, var(--accent-blue), transparent);
    animation-duration: 40s;
    animation-delay: 5s;
}

.particle:nth-child(3) {
    width: 70px;
    height: 70px;
    top: 85%;
    left: 15%;
    background: radial-gradient(circle, var(--accent-purple), transparent);
    animation-duration: 45s;
    animation-delay: 10s;
}

.particle:nth-child(4) {
    width: 55px;
    height: 55px;
    top: 40%;
    left: 70%;
    background: radial-gradient(circle, var(--gradient-end), transparent);
    animation-duration: 38s;
    animation-delay: 3s;
}

.particle:nth-child(5) {
    width: 65px;
    height: 65px;
    top: 10%;
    left: 75%;
    background: radial-gradient(circle, rgba(131, 56, 236, 0.5), transparent);
    animation-duration: 42s;
    animation-delay: 8s;
}

@keyframes particleFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.06;
    }

    25% {
        transform: translate(30px, -30px) scale(1.05);
        opacity: 0.08;
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
        opacity: 0.04;
    }

    75% {
        transform: translate(25px, 35px) scale(1.02);
        opacity: 0.07;
    }
}


/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .hero-greeting {
        font-size: 1.2rem;
    }

    .hero-nav {
        gap: 1rem;
    }

    .hero-nav a {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

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

    .social-links {
        gap: 1rem;
    }

    .social-link {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .theme-toggle {
        top: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-name {
        font-size: 3.5rem;
    }
}

/* Smooth Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}