:root {
    --bg-dark: #0a192f;
    --bg-light: #112240;
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --accent: #64ffda;
    --white: #e6f1ff;
    --font-sans: 'Outfit', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-size: 20px;
    overflow-x: hidden;
    position: relative;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
}

.section {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 14px;
    cursor: pointer;
    text-align: center;
    border: 1px solid transparent;
}

.btn-primary {
    color: var(--bg-dark);
    background-color: var(--accent);
    border-color: var(--accent);
}

.btn-primary:hover {
    background-color: rgba(100, 255, 218, 0.8);
}

.btn-outline {
    color: var(--accent);
    border-color: var(--accent);
    background: transparent;
}

.btn-outline:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

.section-title {
    display: flex;
    align-items: center;
    font-size: 32px;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 50px;
}

.section-title span {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 24px;
    margin-right: 15px;
    font-weight: 400;
}

.section-title::after {
    content: "";
    display: block;
    width: 200px;
    height: 1px;
    background-color: var(--bg-light);
    margin-left: 20px;
}

/* Header */
header {
    background-color: rgba(10, 25, 47, 0.7);
    height: 80px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    box-shadow: 0 10px 30px -10px rgba(2, 12, 27, 0.7);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
}

.logo {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
}

.nav-list {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-list li a {
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--text-primary);
}

.nav-list li a:hover {
    color: var(--accent);
}

.btn-resume {
    color: var(--accent) !important;
    border: 1px solid var(--accent);
    padding: 8px 16px;
    border-radius: 4px;
    margin-left: 10px;
}

.btn-resume:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--accent);
    margin: 5px auto;
    transition: var(--transition);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 0;
    /* Override section padding */
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-text {
    flex: 1;
}

.greeting {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 16px;
    margin-bottom: 20px;
}

.name {
    font-size: clamp(50px, 9vw, 90px);
    color: var(--text-primary);
    font-weight: 800;
    line-height: 0.9;
    margin-bottom: 10px;
}

.role {
    font-size: clamp(40px, 7vw, 70px);
    color: var(--text-secondary);
    font-weight: 700;
    line-height: 0.7;
    margin-bottom: 20px;
}

.bio-short {
    max-width: 600px;
    margin-bottom: 50px;
    font-size: 22px;
    color: var(--text-secondary);
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 0 0 300px;
    /* Reduced from 40% to fixed nice size */
    margin-left: 50px;
    position: relative;
    max-width: 350px;
}

.img-wrapper {
    position: relative;
    border-radius: 50%;
    overflow: hidden;
    width: 300px;
    height: 300px;
    border: 2px solid var(--accent);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.2);
}

.img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%) contrast(1.1);
    transition: var(--transition);
}

.img-wrapper:hover img {
    filter: none;
    transform: scale(1.05);
}

/* About */
.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 50px;
    align-items: start;
}

.about-text p {
    margin-bottom: 15px;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(140px, 1fr));
    gap: 10px;
    margin-top: 20px;
}

.skills-list li {
    font-family: var(--font-mono);
    font-size: 13px;
    position: relative;
    padding-left: 20px;
}

.skills-list li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.education-card {
    background-color: rgba(17, 34, 64, 0.75);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 30px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.education-card h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
}

.edu-item {
    margin-bottom: 20px;
}

.edu-item h4 {
    color: var(--white);
    font-size: 16px;
}

.edu-place {
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Experience */
.job-tab-content {
    background-color: rgba(17, 34, 64, 0.75);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 30px;
    border-radius: 6px;
    border-left: 3px solid var(--accent);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 3px solid var(--accent);
}

.job-role {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.company {
    color: var(--accent);
}

.job-range {
    font-family: var(--font-mono);
    font-size: 13px;
    margin-bottom: 20px;
}

.job-desc li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 16px;
}

.job-desc li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.skill-category h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tags span {
    background-color: var(--bg-light);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 16px;
    border-radius: 20px;
    transition: var(--transition);
}

.tags span:hover {
    background-color: var(--accent);
    color: var(--bg-dark);
}

/* Research & Projects */
.research-grid,
.project-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.research-card,
.project-item {
    background-color: rgba(17, 34, 64, 0.75);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 30px;
    border-radius: 6px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transform-style: preserve-3d;
    transform: perspective(1000px);
}

.research-card:hover,
.project-item:hover {
    transform: translateY(-7px);
    box-shadow: 0 20px 30px -15px rgba(2, 12, 27, 0.7);
    border-color: var(--accent);
}

.card-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    color: var(--accent);
    font-size: 24px;
}

.card-title,
.project-title {
    color: var(--time-primary);
    color: var(--text-primary);
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: 600;
}

.card-desc,
.project-desc {
    font-size: 15px;
    margin-bottom: 20px;
}

.card-tech,
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-family: var(--font-mono);
    font-size: 12px;
}

/* Contact */
.contact-section {
    text-align: center;
    margin-bottom: 100px;
}

.section-title-center {
    font-size: 40px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 700;
}

.section-subtitle {
    color: var(--accent);
    font-family: var(--font-mono);
    margin-bottom: 20px;
}

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

.contact-details {
    margin: 40px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.detail-item {
    display: flex;
    gap: 10px;
    align-items: center;
    color: var(--text-primary);
}

.detail-item i {
    color: var(--accent);
}

.big-btn {
    padding: 20px 30px;
    font-size: 16px;
}

/* Footer */
.footer {
    padding: 20px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 12px;
}

.social-links {
    margin-bottom: 10px;
    font-size: 20px;
}

.social-links a {
    margin: 0 10px;
    color: var(--text-secondary);
}

.social-links a:hover {
    color: var(--accent);
}

/* Responsive */
@media screen and (max-width: 768px) {
    .nav-list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        right: 0;
        background-color: var(--bg-light);
        width: 100%;
        padding: 20px;
        text-align: center;
    }

    .nav-list.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-image {
        margin: 0 0 50px 0;
        max-width: 250px;
    }

    .img-wrapper {
        width: 250px;
        height: 250px;
        margin: 0 auto;
    }

    .hero-btns {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.delay-100 {
    transition-delay: 0.1s;
}

.delay-200 {
    transition-delay: 0.2s;
}

/* Typing Cursor */
.cursor {
    display: inline-block;
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}