:root {
    --primary: #6e48aa;
    --secondary: #0f0a1a;
    --accent: #9d50bb;
    --neon: #00f2fe;
    --light: #e6f1ff;
    --dark: #020c1b;
    --gray: #7e8da9;
    --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--secondary);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(109, 72, 170, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(157, 80, 187, 0.1) 0%, transparent 25%);
}

body.light-theme {
    background: var(--light);
    color: var(--dark);
    background-image:
        radial-gradient(circle at 15% 50%, rgba(109, 72, 170, 0.05) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(157, 80, 187, 0.05) 0%, transparent 25%);
}

::selection {
    background-color: var(--accent);
    color: var(--light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    background: linear-gradient(90deg, var(--neon) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -1px;
}

h2 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--light);
    position: relative;
    margin-bottom: 2rem;
    font-weight: 700;
}

body.light-theme h2 {
    color: var(--dark);
}

h2::after {
    content: '';
    display: block;
    width: 150px;
    height: 3px;
    margin-top: 1rem;
    background: linear-gradient(90deg, var(--accent), transparent);
}

h3 {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    color: var(--neon);
    font-family: 'Fira Code', monospace;
}

p {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

body.light-theme p {
    color: #4b5563;
}

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

a:hover {
    color: var(--light);
}

body.light-theme a:hover {
    color: var(--primary);
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 5rem 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(15, 10, 26, 0.9);
    backdrop-filter: blur(10px);
    height: 80px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(109, 72, 170, 0.2);
}

body.light-theme header {
    background-color: rgba(230, 241, 255, 0.9);
    border-bottom: 1px solid rgba(109, 72, 170, 0.1);
}

nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Fira Code', monospace;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--neon);
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}

.logo-img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--neon);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    color: var(--light);
    font-weight: 500;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
}

body.light-theme .nav-links a {
    color: var(--dark);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -0.3125rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--neon);
    transition: var(--transition);
}

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

.resume-btn, .theme-toggle-btn {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    color: var(--neon);
    background: transparent;
    border: 1px solid var(--neon);
    border-radius: 0.25rem;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    font-weight: 600;
    letter-spacing: 1px;
}

.resume-btn::before, .theme-toggle-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 242, 254, 0.1), transparent);
    transition: var(--transition);
    z-index: -1;
}

.resume-btn:hover, .theme-toggle-btn:hover {
    background: rgba(0, 242, 254, 0.1);
    box-shadow: 0 0 0.9375rem rgba(0, 242, 254, 0.3);
}

.resume-btn:hover::before, .theme-toggle-btn:hover::before {
    left: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--neon);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
}

/* Hero Section */
#hero {
    padding-top: 5rem;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 70% 30%, rgba(109, 72, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 30% 70%, rgba(157, 80, 187, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.hero-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.hero-content {
    flex: 1 1 55%;
}

.hero-image {
    flex: 1 1 35%;
    text-align: center;
}

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
    box-shadow: 0 0.25rem 1.25rem rgba(0, 242, 254, 0.2);
    transition: var(--transition);
}

.hero-img:hover {
    transform: scale(1.05);
}

.hero-intro {
    font-family: 'Fira Code', monospace;
    color: var(--neon);
    margin-bottom: 1.5rem;
    font-size: clamp(1rem, 3vw, 1.25rem);
}

.hero-name {
    font-weight: 700;
}

.hero-title {
    font-size: clamp(2rem, 8vw, 4rem);
    color: var(--gray);
    margin: 0.5rem 0 1.5rem;
    font-weight: 300;
}

body.light-theme .hero-title {
    color: #4b5563;
}

.hero-desc {
    max-width: 600px;
    font-size: 1.2rem;
}

.cta-btn {
    display: inline-block;
    margin-top: 2rem;
    padding: 1rem 2rem;
    border: 1px solid var(--neon);
    border-radius: 0.25rem;
    color: var(--neon);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(0, 242, 254, 0.1);
    transition: var(--transition);
    z-index: -1;
}

.cta-btn:hover {
    box-shadow: 0 0 1.25rem rgba(0, 242, 254, 0.3);
    transform: translateY(-0.1875rem);
}

.cta-btn:hover::before {
    width: 100%;
}

/* About Section */
#about {
    padding: 5rem 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    background: var(--secondary);
    background-image:
        radial-gradient(circle at 15% 50%, rgba(109, 72, 170, 0.05) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(157, 80, 187, 0.05) 0%, transparent 25%);
}

body.light-theme #about {
    background: #f4f6fb;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(109, 72, 170, 0.05) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(157, 80, 187, 0.05) 0%, transparent 25%);
}

#about .about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-image {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
}

.profile-img {
    border-radius: 0.625rem;
    position: relative;
    z-index: 1;
    filter: grayscale(100%) contrast(1);
    transition: var(--transition);
    box-shadow: 0 0.625rem 1.875rem rgba(0, 0, 0, 0.3);
    width: 100%;
    height: auto;
}

.about-image:hover .profile-img {
    filter: none;
    transform: scale(1.03);
}

.profile-frame {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--neon);
    border-radius: 0.625rem;
    top: 1.25rem;
    left: 1.25rem;
    z-index: 0;
    transition: var(--transition);
}

.about-image:hover .profile-frame {
    top: 0.9375rem;
    left: 0.9375rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    #about .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        margin-top: 2rem;
        max-width: 80%;
    }
}

/* AI/ML Expertise */
#ai-ml-expertise {
    padding: 4rem 0;
    background: var(--secondary);
    position: relative;
    overflow: hidden;
}

#ai-ml-expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(0, 242, 254, 0.1) 0%, transparent 50%);
    z-index: 0;
    pointer-events: none;
}

#ai-ml-expertise .expertise-layout {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 2.5rem;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.expertise-cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(250px, 1fr));
    gap: 2rem;
}

.expertise-box {
    background-color: rgba(33, 37, 41, 0.3);
    padding: 2rem 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 0 0.75rem rgba(0, 242, 254, 0.08);
    font-size: 1.05rem;
    line-height: 1.6;
    border: 1px solid rgba(109, 72, 170, 0.2);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.expertise-box:hover {
    transform: translateY(-0.3125rem);
    background: rgba(33, 37, 41, 0.5);
    box-shadow: 0 0.5rem 1rem rgba(109, 72, 170, 0.2);
}

body.light-theme .expertise-box {
    background-color: rgba(230, 241, 255, 0.3);
    border-color: rgba(109, 72, 170, 0.1);
}

body.light-theme .expertise-box:hover {
    background-color: rgba(230, 241, 255, 0.5);
}

.expertise-box h3 {
    color: var(--neon);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.expertise-box ul {
    padding-left: 1.5rem;
    list-style: none;
    margin: 0;
}

.expertise-box li {
    margin-bottom: 0.5rem;
    color: var(--gray);
    position: relative;
    padding-left: 1.25rem;
    font-weight: 400;
}

.expertise-box li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--neon);
    font-size: 1rem;
}

body.light-theme .expertise-box li {
    color: #4b5563;
}
.philosophy-desktop,
.philosophy-mobile {
    color: var(--text-color);
    background-color: transparent;
    padding: 2rem 1rem;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.1rem;
    line-height: 1.7;
    max-width: 900px;
    margin: auto;
}

.philosophy-desktop p {
    margin-bottom: 1rem;
    font-weight: 500;
}

.philosophy-points {
    list-style: none;
    padding-left: 0;
    margin-top: 1.5rem;
}

.philosophy-points li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
    font-weight: 500;
    color: var(--text-color);
}

.philosophy-points li::before {
    content: "✨";
    position: absolute;
    left: 0;
    top: 0.1rem;
    color: var(--neon);
    font-size: 1rem;
}

/* Optional subtle card background (if desired) */
.philosophy-desktop,
.philosophy-mobile {
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.02);
    box-shadow: 0 0 0.75rem rgba(0, 0, 0, 0.2);
}

/* Responsive Behavior */
@media (max-width: 768px) {
    .philosophy-desktop {
        display: none;
    }

    .philosophy-mobile {
        display: block;
        padding: 1.5rem;
        border-radius: 1rem;
        background: linear-gradient(135deg, rgba(110, 72, 170, 0.5), rgba(157, 80, 187, 0.4));
        color: var(--light);
        font-size: 1rem;
        line-height: 1.6;
        box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.3);
    }

    .philosophy-mobile .philosophy-points li {
        color: var(--light);
        font-weight: 500;
        font-size: 1rem;
        padding-left: 1.5rem;
        position: relative;
    }

    .philosophy-mobile .philosophy-points li::before {
        content: "✨";
        position: absolute;
        left: 0;
        top: 0.2rem;
        color: var(--neon);
        font-size: 1rem;
    }
}

@media (min-width: 769px) {
    .philosophy-mobile {
        display: none;
    }

    .philosophy-desktop {
        display: block;
    }
}

.philosophy-box {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 0.5rem 1rem rgba(109, 72, 170, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100%;
}

body.light-theme .philosophy-box {
    background: linear-gradient(135deg, rgba(110, 72, 170, 0.2), rgba(157, 80, 187, 0.2));
}

.philosophy-box h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.philosophy-box h3 span {
    color: var(--neon);
    font-weight: 800;
}

.philosophy-box p {
    margin-bottom: 1.5rem;
    color: var(--light);
    font-size: 1.05rem;
    line-height: 1.7;
}

body.light-theme .philosophy-box p {
    color: #232946;
}

.btn-outline {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 2px solid var(--neon);
    color: var(--neon);
    text-decoration: none;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-outline:hover {
    background-color: var(--neon);
    color: var(--dark);
    transform: translateY(-2px);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 242, 254, 0.3);
}

body.light-theme .btn-outline {
    border-color: var(--primary);
}

body.light-theme .btn-outline:hover {
    background-color: var(--primary);
    color: var(--light);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    #ai-ml-expertise .expertise-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .expertise-cards {
        grid-template-columns: 1fr;
    }

    .philosophy-box {
        min-height: auto;
    }
}

/* Projects Section */
#projects .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-filter {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: rgba(109, 72, 170, 0.1);
    color: var(--gray);
    border-radius: 0.3125rem;
    cursor: pointer;
    font-family: 'Fira Code', monospace;
    transition: var(--transition);
}

body.light-theme .filter-btn {
    background: rgba(109, 72, 170, 0.05);
    color: #4b5563;
}

.filter-btn.active, .filter-btn:hover {
    background: var(--neon);
    color: var(--dark);
}

.project-card {
    background: rgba(33, 37, 41, 0.3);
    border-radius: 0.625rem;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(109, 72, 170, 0.2);
}

body.light-theme .project-card {
    background: rgba(230, 241, 255, 0.3);
    border: 1px solid rgba(109, 72, 170, 0.1);
}

.project-card:hover {
    transform: translateY(-0.625rem);
    background: rgba(33, 37, 41, 0.5);
    box-shadow: 0 0.625rem 1.875rem rgba(109, 72, 170, 0.2);
    border-color: rgba(109, 72, 170, 0.4);
}

body.light-theme .project-card:hover {
    background: rgba(230, 241, 255, 0.5);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0.625rem;
    background: linear-gradient(135deg, rgba(109, 72, 170, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

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

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.project-link {
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--neon);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.3125rem;
    text-decoration: none;
}

/* Existing styles */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.tech-item {
    font-family: 'Fira Code', monospace;
    font-size: 0.7rem;
    color: var(--gray);
    background: rgba(109, 72, 170, 0.1);
    padding: 0.1875rem 0.4375rem;
    border-radius: 1.25rem;
    border: 1px solid rgba(109, 72, 170, 0.3);
}

/* Light theme */
body.light-theme .tech-item {
    color: #4b5563;
    background: rgba(109, 72, 170, 0.05);
}

/* Highlight specific techs with brand colors */
.typescript { background-color: #3178c6; color: #fff; border-color: #3178c6; }
.reactjs     { background-color: #61dafb; color: #000; border-color: #61dafb; }
.nodejs      { background-color: #3c873a; color: #fff; border-color: #3c873a; }
.mongodb     { background-color: #47a248; color: #fff; border-color: #47a248; }
.firebase    { background-color: #f58220; color: #fff; border-color: #f58220; }
.html       { background-color: #e34c26; color: #fff; border-color: #e34c26; }
.css        { background-color: #264de4; color: #fff; border-color: #264de4; }
.javascript { background-color: #f7df1e; color: #000; border-color: #f7df1e; }
.api        { background-color: #6c63ff; color: #fff; border-color: #6c63ff; }

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

.category-title {
    font-size: 1.5rem;
    margin: 1.5rem 0 0.5rem;
    color: var(--neon);
}

.skill-bar {
    background: rgba(33, 37, 41, 0.3);
    padding: 1.25rem;
    border-radius: 0.625rem;
    box-shadow: 0 0 0.625rem rgba(0, 242, 254, 0.08);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    border: 1px solid rgba(109, 72, 170, 0.2);
}

body.light-theme .skill-bar {
    background: rgba(230, 241, 255, 0.3);
    border: 1px solid rgba(109, 72, 170, 0.1);
}

.skill-bar span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--light);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

body.light-theme .skill-bar span {
    color: var(--dark);
}

.skill-icon {
    font-size: 1.4rem;
    color: var(--neon);
    margin-right: 0.625rem;
}

.bar {
    width: 100%;
    background: var(--gray);
    height: 0.625rem;
    border-radius: 1.25rem;
    overflow: hidden;
}

body.light-theme .bar {
    background: #d1d5db;
}

.progress {
    height: 100%;
    background: var(--neon);
    width: 0;
    border-radius: 1.25rem;
    transition: width 1.5s ease-in-out;
}

/* What I Do */
#what-i-do .what-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.what-card {
    background: rgba(33, 37, 41, 0.3);
    padding: 2rem;
    border-radius: 0.75rem;
    text-align: center;
    box-shadow: 0 0 0.625rem rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(109, 72, 170, 0.2);
    transition: var(--transition);
}

body.light-theme .what-card {
    background: rgba(230, 241, 255, 0.3);
    border: 1px solid rgba(109, 72, 170, 0.1);
}

.what-card:hover {
    transform: translateY(-0.3125rem);
    background: rgba(33, 37, 41, 0.5);
    box-shadow: 0 0.625rem 1.25rem rgba(109, 72, 170, 0.2);
}

body.light-theme .what-card:hover {
    background: rgba(230, 241, 255, 0.5);
}

.what-card i {
    font-size: 2rem;
    color: var(--neon);
    margin-bottom: 0.5rem;
}

.what-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.what-card p {
    font-size: 0.95rem;
}

/* Testimonials */
#testimonials .testimonial-card {
    background: rgba(33, 37, 41, 0.3);
    padding: 2rem;
    margin-top: 2rem;
    border-left: 0.25rem solid var(--neon);
    border-radius: 0.5rem;
    font-style: italic;
    color: var(--gray);
    backdrop-filter: blur(5px);
}

body.light-theme .testimonial-card {
    background: rgba(230, 241, 255, 0.3);
}

.testimonial-card span {
    display: block;
    margin-top: 1rem;
    color: var(--neon);
}

/* CTA */
#cta .cta-banner {
    background: linear-gradient(90deg, rgba(0, 242, 254, 0.2), var(--dark));
    padding: 2rem;
    border-radius: 0.75rem;
    text-align: center;
    color: var(--light);
}

body.light-theme .cta-banner {
    background: linear-gradient(90deg, rgba(0, 242, 254, 0.1), var(--light));
    color: var(--dark);
}

.cta-banner h2 {
    margin-bottom: 1rem;
}

/* Contact */
.contact-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    border-radius: 14px;
    padding: 2rem;
    max-width: 480px;
    margin: 2rem auto;
    color: #fff;
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.popup {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--neon, #00f2fe);
  color: #000;
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 0 12px rgba(0, 255, 255, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease-in-out;
  z-index: 9999;
  font-weight: bold;
}
.popup.show {
  opacity: 1;
  pointer-events: auto;
}


body.light-theme .contact-form {
    background: rgba(230, 241, 255, 0.1);
    border: 1px solid rgba(109, 72, 170, 0.1);
    color: #232946;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #fff;
}

body.light-theme .contact-form label {
    color: #232946;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: border 0.3s;
}

body.light-theme .contact-form input,
body.light-theme .contact-form textarea {
    border: 1px solid rgba(109, 72, 170, 0.2);
    color: #232946;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

body.light-theme .contact-form input::placeholder,
body.light-theme .contact-form textarea::placeholder {
    color: rgba(35, 41, 70, 0.5);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #7b5cff;
}

.contact-form button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(to right, #7b5cff, #5ee7df);
    color: #fff;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    position: relative;
    transition: 0.3s;
}

.contact-form button:hover {
    transform: scale(1.03);
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
}

body.light-theme .btn-spinner {
    border: 2px solid rgba(35, 41, 70, 0.3);
    border-top-color: #232946;
}

#form-status {
    margin-top: 1rem;
    font-size: 0.9rem;
    display: none;
}

#form-status.success {
    color: #5ee7df;
}

#form-status.error {
    color: #f87171;
}

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

/* Success bounce */
@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
}

.fade-in.visible {
    opacity: 1;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Error shake */
@keyframes formErrorShake {
    0%,
    100% {
        transform: translateX(0);
    }
    20%,
    60% {
        transform: translateX(-10px);
    }
    40%,
    80% {
        transform: translateX(10px);
    }
}

.form-success {
    animation: formSuccessBounce 0.6s ease;
}

.form-error {
    animation: formErrorShake 0.4s ease;
}

/* Smooth status text */
#form-status {
    transition: all 0.4s ease;
    font-weight: 500;
    margin-top: 10px;
    opacity: 0;
}

#form-status.success {
    color: #00e676;
    opacity: 1;
}

#form-status.error {
    color: #ff1744;
    opacity: 1;
}

/* Animation */
@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.email-link {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    color: var(--neon);
    position: relative;
    display: inline-block;
    padding: 1rem 2rem;
    border: 1px solid var(--neon);
    border-radius: 0.25rem;
    transition: var(--transition);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    left: 44%;
}

.email-link:hover {
    background: rgba(0, 242, 254, 0.1);
    box-shadow: 0 0 1.25rem rgba(0, 242, 254, 0.2);
}


.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.social-link {
    font-size: 1.5rem;
    color: var(--light);
    transition: var(--transition);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(109, 72, 170, 0.1);
    border: 1px solid rgba(109, 72, 170, 0.3);
}

body.light-theme .social-link {
    color: var(--dark);
    background: rgba(109, 72, 170, 0.05);
}

.social-link:hover {
    color: var(--neon);
    transform: translateY(-0.3125rem);
    box-shadow: 0 0.3125rem 0.9375rem rgba(109, 72, 170, 0.3);
    background: rgba(109, 72, 170, 0.2);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--gray);
    border-top: 1px solid rgba(109, 72, 170, 0.2);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal img {
    max-width: 80%;
    max-height: 80%;
    border-radius: 0.625rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-0.625rem); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(1.25rem); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
}

.fade-in.visible {
    opacity: 1;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Chatbot - Complete fix with no overlapping */
.chatbot {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 22rem;
    max-width: calc(100vw - 3rem);
    background: rgba(33, 37, 41, 0.98);
    border-radius: 1rem;
    box-shadow: 0 1rem 2rem rgba(0, 242, 254, 0.15);
    display: none;
    z-index: 3000;
    border: 1px solid rgba(109, 72, 170, 0.3);
    backdrop-filter: blur(15px);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chatbot.show {
    display: block;
    opacity: 1;
    transform: translateY(0) scale(1);
}

body.light-theme .chatbot {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(109, 72, 170, 0.2);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.1);
}

.chat-header {
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border-top-left-radius: 1rem;
    border-top-right-radius: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    font-family: 'Rajdhani', sans-serif;
}

.chat-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
    transition: var(--transition);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.chat-messages {
    padding: 1.5rem;
    height: 18rem;
    overflow-y: auto;
    background: transparent;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.chat-messages::-webkit-scrollbar {
    width: 0.25rem;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--neon);
    border-radius: 1rem;
}

.chat-input {
    display: flex;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: 0.75rem;
    align-items: center;
}

body.light-theme .chat-input {
    background: rgba(0, 0, 0, 0.02);
    border-top-color: rgba(109, 72, 170, 0.1);
}

#chat-input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--light);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

#chat-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

#chat-input:focus {
    border-color: var(--neon);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 0.125rem rgba(0, 242, 254, 0.2);
}

body.light-theme #chat-input {
    color: var(--dark);
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(109, 72, 170, 0.2);
}

body.light-theme #chat-input::placeholder {
    color: rgba(0, 0, 0, 0.5);
}

body.light-theme #chat-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.125rem rgba(109, 72, 170, 0.2);
}

#chat-send {
    padding: 1rem;
    background: var(--neon);
    border: none;
    border-radius: 50%;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

#chat-send:hover {
    background: var(--light);
    transform: scale(1.1);
    box-shadow: 0 0.5rem 1rem rgba(0, 242, 254, 0.3);
}

.chat-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: auto;
    min-width: 12rem;
    height: 3.5rem;
    border-radius: 2rem;
    background: linear-gradient(135deg, var(--neon), #00d4ff);
    border: none;
    color: var(--dark);
    font-size: 1rem;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 0.5rem 1.5rem rgba(0, 242, 254, 0.4);
    z-index: 2500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0 2rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    transform: translateY(0) scale(1);
}

.chat-toggle.hide {
    opacity: 0;
    transform: translateY(10px) scale(0.95);
    pointer-events: none;
}

.chat-toggle:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 1rem 2rem rgba(0, 242, 254, 0.5);
}

.chat-toggle::before {
    content: '💬';
    font-size: 1.2rem;
    margin-right: 0.25rem;
}

.chat-suggestions {
    padding: 1.5rem;
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    background: rgba(0, 0, 0, 0.05);
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
}

.suggestion {
    padding: 0.75rem 1.25rem;
    border: 1px solid rgba(0, 242, 254, 0.3);
    border-radius: 2rem;
    background: transparent;
    color: var(--light);
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

body.light-theme .suggestion {
    color: var(--dark);
    border-color: rgba(109, 72, 170, 0.3);
}

.suggestion:hover {
    background: var(--neon);
    color: var(--dark);
    transform: translateY(-2px);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 242, 254, 0.3);
}

.message {
    margin: 0.5rem 0;
    padding: 1rem 1.25rem;
    border-radius: 1.25rem;
    max-width: 85%;
    word-wrap: break-word;
    font-size: 0.95rem;
    line-height: 1.5;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 500;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    background: linear-gradient(135deg, var(--neon), #00d4ff);
    color: var(--dark);
    align-self: flex-end;
    margin-left: auto;
    border-bottom-right-radius: 0.5rem;
    font-weight: 600;
}

.message.bot {
    background: rgba(109, 72, 170, 0.2);
    color: var(--light);
    align-self: flex-start;
    border-bottom-left-radius: 0.5rem;
    border: 1px solid rgba(109, 72, 170, 0.1);
}

body.light-theme .message.bot {
    background: rgba(109, 72, 170, 0.1);
    color: var(--dark);
    border-color: rgba(109, 72, 170, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .chatbot {
        width: calc(100vw - 2rem);
        max-width: none;
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
    }

    .chat-messages {
        height: 15rem;
        padding: 1rem;
    }

    .chat-input {
        padding: 1rem;
    }

    .chat-suggestions {
        padding: 1rem;
    }

    .chat-toggle {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        margin: 0 auto;
        width: calc(100% - 2rem);
        max-width: 16rem;
    }
}

@media (max-width: 480px) {
    .chatbot {
        width: calc(100vw - 1rem);
        right: 0.5rem;
        left: 0.5rem;
        bottom: 1rem;
    }

    .chat-messages {
        height: 12rem;
        padding: 0.75rem;
    }

    .chat-input {
        padding: 0.75rem;
        gap: 0.5rem;
    }

    #chat-input {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }

    #chat-send {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }

    .chat-toggle {
        height: 3rem;
        font-size: 0.8rem;
        padding: 0 1.5rem;
        max-width: 14rem;
    }

    .suggestion {
        font-size: 0.8rem;
        padding: 0.6rem 1rem;
    }

    .message {
        font-size: 0.8rem;
        padding: 0.875rem 1rem;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  header {
    height: 3.75rem;
  }

  .logo {
    font-size: 1rem;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    height: 100vh;
    background: rgba(15, 10, 26, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right 0.3s ease;
    z-index: 1000;
  }

  body.light-theme .nav-links {
    background: rgba(230, 241, 255, 0.98);
  }

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

  .mobile-menu-btn {
    display: block;
  }

  .resume-btn {
    font-size: 0.9rem;
    padding: 0.375rem 0.625rem;
  }

  .theme-toggle-btn {
    font-size: 0.9rem;
    padding: 0.375rem;
  }

  .hero-flex {
    flex-direction: column-reverse;
    align-items: center;
    gap: 2rem;
    padding-top: 2rem;
  }

  .hero-content, .hero-image {
    flex: 1 1 100%;
    text-align: center;
  }

  .hero-img {
    max-width: 17.5rem;
  }

  /* 🧼 REMOVE logo3 image from mobile */
  .logo3-img,
  .logo3-container {
    display: none !important;
  }

  .about-content,
  .expertise-layout,
  .projects-grid,
  .what-grid {
    grid-template-columns: 1fr;
  }

  .expertise-cards {
    grid-template-columns: 1fr;
  }

  .about-image {
    margin-top: 2rem;
    max-width: 80%;
  }

  .contact-content,
  .hero-desc,
  .hero-title,
  .hero-intro {
    text-align: center;
  }

  .social-links {
    gap: 1rem;
    flex-wrap: wrap;
  }

  .social-link {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.2rem;
  }

  .chatbot {
    width: 15rem;
    bottom: 1.25rem;
    right: 1.25rem;
  }

  .chat-messages {
    height: 10rem;
  }

  .chat-toggle {
    width: 8rem;
    height: 2rem;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .cta-btn,
  .email-link {
    font-size: 0.9rem;
    padding: 0.375rem 0.75rem;
    left: auto;
  }

  .skill-bar span {
    font-size: 0.9rem;
  }

  .skill-icon {
    font-size: 1.2rem;
  }

  .hero-img {
    max-width: 90%;
  }

  .chat-toggle {
    width: 6rem;
    height: 2.75rem;
    font-size: 0.7rem;
    left: 51%;
    bottom : 2%
  }

  /* Ensure logo3 stays hidden on smaller phones too */
  .logo3-img,
  .logo3-container {
    display: none !important;
  }
}