@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;600;800&family=Hind+Siliguri:wght@400;500;600;700&display=swap');

:root {
    --bg-color: #030712;
    --card-bg: rgba(255, 255, 255, 0.02);
    --card-border: rgba(255, 255, 255, 0.05);
    --card-border-hover: rgba(168, 85, 247, 0.4);
    --text-color: #9ca3af;
    --heading-color: #f9fafb;
    --accent-glow: 0 0 20px rgba(168, 85, 247, 0.15);
    --gradient-primary: linear-gradient(135deg, #06b6d4 0%, #a855f7 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', 'Hind Siliguri', sans-serif;
    --font-secondary: 'Outfit', 'Hind Siliguri', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
    scroll-behavior: smooth;
    max-width: 100vw;
    overflow-x: hidden;
    position: relative;
}
body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    color: var(--heading-color);
    font-weight: 600;
}

a { text-decoration: none; color: var(--text-color); transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; border-radius: 12px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.grid { display: grid; gap: 40px; }
.section { padding: 120px 0; }

.section-subtitle {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    display: block;
    margin-bottom: 10px;
    font-family: var(--font-secondary);
}

.section-title {
    font-size: 48px;
    margin-bottom: 60px;
    line-height: 1.1;
    font-weight: 800;
}

/* Header */
.header {
    position: fixed; top: 0; left: 0; width: 100%;
    background-color: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(12px);
    z-index: 100; padding: 15px 0;
    border-bottom: 1px solid var(--card-border);
    transition: var(--transition);
}

.nav-container {
    display: flex; justify-content: space-between; align-items: center;
    max-width: 1200px; margin: 0 auto; padding: 0 20px;
}

.logo-text {
    display: flex; align-items: center; gap: 15px;
    font-family: var(--font-secondary); font-size: 24px; font-weight: 800;
    color: var(--heading-color);
}
.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    letter-spacing: 0.5px;
    filter: drop-shadow(0 0 8px rgba(6, 182, 212, 0.3));
    margin-right: 4px;
}
.logo-light {
    color: var(--heading-color);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.logo-img {
    width: 45px; height: 45px; border-radius: 50%; object-fit: cover;
    border: 2px solid transparent;
    background: var(--gradient-primary);
    padding: 2px;
    background-clip: content-box;
}

.nav-list { display: flex; gap: 40px; }
.nav-link {
    font-size: 14px; font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background: var(--gradient-primary); transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link:hover, .nav-link.active { color: var(--heading-color); }

.nav-toggle, .nav-close {
    display: none; font-size: 24px; color: var(--heading-color); cursor: pointer;
}

/* Hero */
.hero { padding-top: 140px; position: relative; overflow: hidden; }
.hero::before {
    content: ''; position: absolute; top: -10%; right: -5%; width: 500px; height: 500px;
    background: var(--gradient-primary); filter: blur(150px); opacity: 0.15; z-index: -1;
    border-radius: 50%;
}

.hero-container { grid-template-columns: 1.2fr 1fr; align-items: center; }
.subtitle {
    font-size: 14px; letter-spacing: 2px; text-transform: uppercase;
    font-weight: 500; display: inline-block; margin-bottom: 20px;
    padding: 8px 16px; border-radius: 30px;
    background: var(--card-bg); border: 1px solid var(--card-border);
}

.hero-title { font-size: 64px; line-height: 1.1; margin-bottom: 30px; font-weight: 800; }
.hero-title .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.hero-description { font-size: 18px; line-height: 32px; padding-right: 10%; margin-bottom: 50px; }

.hero-socials-skills { display: flex; gap: 60px; }
.skill-title {
    font-size: 12px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 15px; display: block; color: var(--heading-color);
}

.social-list, .skill-list { display: flex; gap: 15px; }
.social-link, .skill-icon {
    width: 50px; height: 50px; display: flex; align-items: center; justify-content: center;
    border-radius: 50%; background: var(--card-bg); border: 1px solid var(--card-border);
    color: var(--text-color); font-size: 18px; transition: var(--transition);
}

.social-link:hover, .skill-icon:hover {
    color: #fff; border-color: rgba(168, 85, 247, 0.5);
    box-shadow: var(--accent-glow); transform: translateY(-3px);
}

.hero-img-box { position: relative; display: flex; justify-content: center; }
.inner-img {
    position: relative; z-index: 2; border-radius: 20px;
    padding: 10px; background: rgba(255,255,255,0.03);
    border: 1px solid var(--card-border);
    max-width: 450px;
    width: 100%;
}
.inner-img img { 
    border-radius: 16px;
    width: 100%;
    height: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    display: block;
}

/* Features */
.features-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.feature-card {
    padding: 40px; background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 24px; transition: var(--transition);
    display: flex; flex-direction: column;
}

.feature-card:hover {
    border-color: var(--card-border-hover); box-shadow: var(--accent-glow);
    transform: translateY(-8px); background: rgba(255,255,255,0.04);
}
.feature-card:hover .feature-link { transform: translateX(10px); color: #06b6d4; }

.feature-icon {
    font-size: 40px; margin-bottom: 30px;
    background: var(--gradient-primary);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.feature-title { font-size: 24px; margin-bottom: 15px; }
.feature-description { font-size: 15px; margin-bottom: 25px; line-height: 1.8; flex: 1; }
.feature-link { font-size: 20px; color: #a855f7; display: inline-block; transition: var(--transition); }

/* Portfolio */
.portfolio-filters {
    display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 50px; justify-content: center;
    background: var(--card-bg); padding: 8px; border-radius: 50px; border: 1px solid var(--card-border);
    width: fit-content; margin-left: auto; margin-right: auto;
}

.filter-btn {
    padding: 10px 24px; background: transparent; color: var(--text-color);
    border: none; border-radius: 40px; cursor: pointer; font-weight: 500;
    transition: var(--transition); font-family: var(--font-primary); font-size: 14px;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--gradient-primary); color: #fff; box-shadow: var(--accent-glow);
}

.portfolio-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 25px; }
.portfolio-card {
    padding: 16px; background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 20px; transition: var(--transition);
}

.portfolio-card:hover { border-color: var(--card-border-hover); box-shadow: var(--accent-glow); transform: translateY(-8px); }
.portfolio-img { border-radius: 12px; overflow: hidden; margin-bottom: 15px; position: relative; }
.portfolio-img img { transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); width: 100%; display: block; aspect-ratio: 4/3; object-fit: cover; }
.portfolio-card:hover .portfolio-img img { transform: scale(1.08); }

/* Portfolio Meta */
.portfolio-meta {
    display: flex; justify-content: space-between; font-size: 12px; color: #a855f7;
    text-transform: uppercase; font-weight: 600; margin-bottom: 10px;
}

.portfolio-title { font-size: 18px; line-height: 1.4; }
.portfolio-title a { color: var(--heading-color); }
.portfolio-title a:hover { color: #06b6d4; }
.portfolio-img-link { display: block; border-radius: 12px; overflow: hidden; }

/* Resume */
.resume-card {
    padding: 60px; background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 24px; position: relative; overflow: hidden;
}
.resume-card::after {
    content: ''; position: absolute; top: 0; right: 0; width: 300px; height: 300px;
    background: var(--gradient-primary); filter: blur(100px); opacity: 0.1; z-index: -1;
}
.resume-text { font-size: 18px; margin-bottom: 20px; line-height: 1.8; color: #d1d5db; }
.resume-text strong { color: #f9fafb; font-weight: 600; }

/* Bio Glow Links (Eye-Catching System) */
.bio-glow-link {
    color: #06b6d4;
    font-weight: 700;
    text-decoration: none;
    border-bottom: 2px dashed rgba(6, 182, 212, 0.4);
    padding: 0 6px;
    margin: 0 2px;
    border-radius: 6px;
    background: rgba(6, 182, 212, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}
.bio-glow-link i {
    font-size: 11px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.bio-glow-link:hover {
    color: #fff !important;
    background: linear-gradient(135deg, #06b6d4 0%, #a855f7 100%);
    border-bottom-color: transparent;
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.5), 0 0 30px rgba(168, 85, 247, 0.3);
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    transform: translateY(-2px) scale(1.03);
}
.bio-glow-link:hover i {
    transform: translate(2px, -2px);
    color: #fff;
}

/* Contact */
.contact-grid { grid-template-columns: 1fr 1.5fr; gap: 40px; }
.contact-info-card, .contact-form-card {
    padding: 50px; background: var(--card-bg); border: 1px solid var(--card-border);
    border-radius: 24px;
}

.contact-img { border-radius: 16px; overflow: hidden; margin-bottom: 30px; }
.contact-info-card h3 { font-size: 32px; margin-bottom: 10px; }
.designation { font-size: 16px; color: #06b6d4; margin-bottom: 25px; font-weight: 500; }
.contact-desc { margin-bottom: 35px; line-height: 1.8; }
.contact-details p { font-size: 16px; margin-bottom: 15px; display: flex; align-items: center; gap: 12px; }
.contact-details i { color: #a855f7; width: 20px; text-align: center; }
.contact-details span { color: var(--heading-color); font-weight: 500; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.input-box { margin-bottom: 20px; }
.input-box label {
    font-size: 13px; font-weight: 500; color: #9ca3af; margin-bottom: 8px; display: block;
}

.input-box input, .input-box textarea {
    width: 100%; background: rgba(255,255,255,0.03); border: 1px solid var(--card-border);
    border-radius: 12px; padding: 16px; color: var(--heading-color); font-family: var(--font-primary);
    transition: var(--transition);
}

.input-box input:focus, .input-box textarea:focus {
    outline: none; border-color: #a855f7; background: rgba(255,255,255,0.05); box-shadow: var(--accent-glow);
}

.submit-btn {
    background: var(--gradient-primary); border: none; border-radius: 12px;
    padding: 16px 40px; color: #fff; font-weight: 600; cursor: pointer; transition: var(--transition);
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--font-primary); font-size: 16px;
    width: 100%;
}

.submit-btn:hover { box-shadow: var(--accent-glow); transform: translateY(-2px); }

/* Pro Footer Styling */
.footer {
    position: relative;
    background: rgba(3, 7, 18, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    margin-top: 120px;
    padding: 0;
    overflow: hidden;
}

.footer-top-gradient-border {
    height: 3px;
    width: 100%;
    background: linear-gradient(90deg, #06b6d4 0%, #a855f7 50%, #06b6d4 100%);
    background-size: 200% auto;
    animation: gradientShift 4s linear infinite;
}

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

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    text-decoration: none;
}

.footer-brand-desc {
    font-size: 14px;
    line-height: 1.8;
    color: #9ca3af;
    margin-bottom: 25px;
    text-align: justify;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-social-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: #9ca3af;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-social-icon:hover {
    color: #fff;
    border-color: rgba(6, 182, 212, 0.5);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.3);
    background: rgba(6, 182, 212, 0.05);
    transform: translateY(-3px);
}

.footer-title-pro {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #f9fafb;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
    text-transform: uppercase;
}

.footer-title-pro::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 35px;
    height: 2px;
    background: var(--gradient-primary);
}

.footer-links-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.footer-links-list li a {
    font-size: 14px;
    color: #9ca3af;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.footer-links-list li a:hover {
    color: #06b6d4;
    transform: translateX(6px);
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.4);
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: #9ca3af;
}

.footer-contact-item i {
    color: #a855f7;
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.footer-contact-item span {
    transition: all 0.3s ease;
}

.footer-contact-item:hover span {
    color: #f9fafb;
}

.footer-bottom-bar {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    background: rgba(3, 7, 18, 0.99);
    padding: 25px 0;
}

.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-copy {
    font-size: 13px;
    color: #6b7280;
    margin: 0;
}

.footer-crafted {
    font-size: 13px;
    color: #6b7280;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

.animated-heart {
    color: #ef4444;
    animation: heartBeat 1.5s infinite;
}

@keyframes heartBeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.12); }
    28% { transform: scale(1); }
    42% { transform: scale(1.12); }
    70% { transform: scale(1); }
}

/* Footer Responsive styles */
@media screen and (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .brand-col {
        grid-column: span 2;
    }
}

@media screen and (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .brand-col {
        grid-column: span 1;
    }
    .footer-container {
        padding: 50px 20px 40px;
    }
    .footer-bottom-container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

/* Responsive */
@media screen and (max-width: 768px) {
    .hero { padding-top: 100px; }
    .hero-container, .contact-grid { grid-template-columns: 1fr; }
    .hero-content { order: 2; }
    .hero-img-box { order: 1; margin-bottom: 40px; }
    .section-title { font-size: 36px; margin-bottom: 40px; }
    .hero-title { font-size: 40px; }
    .hero-socials-skills { flex-direction: column; gap: 40px; }
    .contact-form-card { margin-top: 20px; }
    .resume-card, .contact-info-card, .contact-form-card { padding: 30px; }
    .header {
        padding: 8px 0 !important;
    }
    .logo-text {
        font-size: 15px !important;
        gap: 6px !important;
        letter-spacing: 0.2px !important;
    }
    .logo-img {
        width: 28px !important;
        height: 28px !important;
    }
    .nav-menu {
        position: fixed; top: 0; right: 0; background-color: rgba(3, 7, 18, 0.98);
        width: 80%; max-width: 320px; height: 100vh; padding: 40px; border-left: 1px solid var(--card-border);
        transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); z-index: 1000;
        display: flex; flex-direction: column; backdrop-filter: blur(20px);
    }
    .nav-menu.show-menu { transform: translateX(0); }
    .nav-list { flex-direction: column; gap: 30px; margin-top: 50px; }
    .nav-link { font-size: 18px; }
    .nav-toggle, .nav-close { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; }
    .nav-toggle { margin-right: 15px; }
    .nav-close { position: absolute; top: 20px; right: 20px; }
    .grid-2 { grid-template-columns: 1fr; }
    .portfolio-filters { flex-direction: column; border-radius: 16px; width: 100%; }
    .filter-btn { border-radius: 8px; }
}

/* Language Toggle Pill Styling */
.lang-toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 800;
    font-family: var(--font-secondary);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    color: var(--text-color);
    transition: var(--transition);
    margin-right: 15px;
    z-index: 10;
}
.lang-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--card-border-hover);
    box-shadow: var(--accent-glow);
    transform: translateY(-1px);
}
.lang-text {
    opacity: 0.4;
    transition: var(--transition);
}
.lang-text.active-lang {
    opacity: 1;
    color: #06b6d4;
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.4);
}
.lang-divider {
    opacity: 0.15;
    color: #9ca3af;
}

@media screen and (max-width: 768px) {
    .lang-toggle-btn {
        padding: 6px 12px;
        font-size: 11px;
        margin-right: 10px;
    }
}

/* Custom Interactive Cursor styling */
:root {
    --cursor-dot-size: 8px;
    --cursor-outline-size: 40px;
    --cursor-expand-size: 60px;
}

@media screen and (max-width: 768px) {
    :root {
        --cursor-dot-size: 5px;
        --cursor-outline-size: 26px;
        --cursor-expand-size: 38px;
    }
}

.cursor-dot {
    display: none;
    width: var(--cursor-dot-size);
    height: var(--cursor-dot-size);
    background-color: #06b6d4;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transition: width 0.3s, height 0.3s, background-color 0.3s, opacity 0.3s;
    box-shadow: 0 0 10px #06b6d4, 0 0 20px #06b6d4;
    opacity: 0;
}

.cursor-outline {
    display: none;
    width: var(--cursor-outline-size);
    height: var(--cursor-outline-size);
    border: 2px solid rgba(168, 85, 247, 0.5);
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease-out, width 0.3s, height 0.3s, border-color 0.3s, opacity 0.3s;
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.2);
    opacity: 0;
}

body:active .cursor-dot {
    width: calc(var(--cursor-dot-size) * 0.75);
    height: calc(var(--cursor-dot-size) * 0.75);
}

body:active .cursor-outline {
    width: calc(var(--cursor-outline-size) * 0.75);
    height: calc(var(--cursor-outline-size) * 0.75);
}

/* Desktop-specific native cursor hiding */
@media (pointer: fine) and (min-width: 769px) {
    body, a, button, .social-icon, .filter-btn, .portfolio-card, .lang-toggle-btn {
        cursor: none !important;
    }
}