/* ==========================================================================
   AAYAAN GHOSH - PERSONAL PORTFOLIO STYLESHEET
   Dark Cyberpunk / Glassmorphism Modern Aesthetic
   ========================================================================== */

:root {
    --bg-dark: #080b11;
    --bg-card: rgba(16, 23, 38, 0.65);
    --bg-card-hover: rgba(22, 33, 54, 0.8);
    --border-color: rgba(0, 242, 254, 0.15);
    --border-hover: rgba(0, 242, 254, 0.4);
    
    --primary-cyan: #00f2fe;
    --primary-blue: #4facfe;
    --accent-purple: #7928ca;
    --accent-pink: #ff0080;
    --accent-green: #00ff87;
    
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Fira Code', monospace;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Canvas */
#bgCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

/* Typography Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-muted { color: var(--text-muted); }
.text-cyan { color: var(--primary-cyan); }
.text-pink { color: var(--accent-pink); }

/* Glassmorphism Common Style */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.glass:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px 0 rgba(0, 242, 254, 0.15);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 2rem;
    transition: var(--transition-normal);
    background: rgba(8, 11, 17, 0.6);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
    padding: 0.85rem 2rem;
    background: rgba(8, 11, 17, 0.9);
    border-bottom: 1px solid var(--border-color);
}

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

.brand-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-prefix { color: var(--primary-cyan); }
.logo-suffix { color: var(--accent-purple); }

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

.nav-item {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

.nav-item:hover, .nav-item.active {
    color: var(--primary-cyan);
}

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
    color: #040810;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 242, 254, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
}

.btn-outline {
    background: transparent;
    color: var(--primary-cyan);
    border: 1px solid var(--primary-cyan);
}

.btn-outline:hover {
    background: var(--primary-cyan);
    color: #040810;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    padding: 9rem 2rem 5rem;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 135, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 255, 135, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 135, 0); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 0.8rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
}

.typing-text {
    color: var(--primary-cyan);
    font-weight: 700;
}

.cursor {
    display: inline-block;
    background-color: var(--primary-cyan);
    margin-left: 2px;
    animation: blink 0.7s infinite;
    width: 10px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.social-bar {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.social-bar a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.social-bar a:hover {
    color: var(--primary-cyan);
    border-color: var(--primary-cyan);
    transform: translateY(-2px);
}

/* Cyber Card Code Block Visual */
.cyber-card {
    background: #0d131f;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 242, 254, 0.1);
    overflow: hidden;
    font-family: var(--font-mono);
}

.card-header-bar {
    background: #060910;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dots {
    display: flex;
    gap: 0.4rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27c93f; }

.card-title {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.card-body {
    padding: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.8;
}

.code-line { margin-bottom: 0.25rem; }
.code-line.indent { padding-left: 1.5rem; }
.code-keyword { color: #ff79c6; font-weight: bold; }
.code-var { color: #50fa7b; }
.code-string { color: #f1fa8c; }
.code-func { color: #8be9fd; }

.card-badge-row {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 0.6rem;
}

.tag {
    font-size: 0.75rem;
    color: var(--primary-cyan);
    background: rgba(0, 242, 254, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

/* Key Metrics Stats Section */
.stats-section {
    max-width: 1200px;
    margin: -2rem auto 4rem;
    padding: 0 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-card {
    text-align: center;
    padding: 2rem 1.5rem;
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary-cyan);
    margin-bottom: 0.75rem;
}

.stat-number {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--text-main);
    font-family: var(--font-mono);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

/* Standard Section Layout */
.section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--primary-cyan);
    letter-spacing: 1.5px;
    font-weight: 600;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-top: 0.5rem;
    letter-spacing: -0.5px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-top: 0.5rem;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.about-card {
    padding: 2.2rem;
    position: relative;
    overflow: hidden;
}

.icon-box {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.1), rgba(79, 172, 254, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.about-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.about-card p {
    color: var(--text-muted);
    font-size: 0.98rem;
    line-height: 1.7;
}

/* UpInViews Showcase Section */
.upinviews-section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.upinviews-container {
    background: linear-gradient(135deg, rgba(16, 23, 38, 0.9), rgba(6, 9, 16, 0.95));
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-lg);
    padding: 4rem 3rem;
    text-align: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 242, 254, 0.12);
    overflow: hidden;
}

.upinviews-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.upinviews-badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
    color: #fff;
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 2px;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.upinviews-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.upinviews-desc {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.upinviews-card {
    max-width: 750px;
    margin: 0 auto;
    padding: 2.5rem;
    background: rgba(8, 11, 17, 0.7);
}

.upinviews-features {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2.5rem;
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.05rem;
    color: var(--text-main);
}

.feature-item i {
    color: var(--accent-green);
    font-size: 1.25rem;
}

/* Skills Categories */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.skill-category {
    padding: 2.5rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.8rem;
}

.category-header i {
    font-size: 2rem;
    color: var(--primary-cyan);
}

.category-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.skill-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    transition: var(--transition-fast);
}

.skill-pill:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
    transform: translateY(-2px);
}

.skill-pill i {
    color: var(--primary-cyan);
}

/* Interactive Terminal Section */
.terminal-container {
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    font-family: var(--font-mono);
    border-radius: var(--radius-md);
    background: #090d16;
}

.terminal-header {
    background: #05080e;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-title {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 1.5rem;
    min-height: 220px;
    max-height: 350px;
    overflow-y: auto;
    font-size: 0.95rem;
    line-height: 1.7;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.term-line { word-break: break-word; }
.highlight { color: var(--accent-green); font-weight: bold; }

.terminal-input-row {
    padding: 0.75rem 1.5rem;
    background: #060910;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.prompt-symbol {
    color: var(--primary-cyan);
    font-size: 0.9rem;
    font-weight: 600;
}

#terminalInput {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem;
}

.contact-info {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 242, 254, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--primary-cyan);
    border: 1px solid var(--border-color);
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-value {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition-fast);
}

.info-value:hover {
    color: var(--primary-cyan);
}

.contact-form {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    background: rgba(8, 11, 17, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1.2rem;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

.form-status {
    font-size: 0.9rem;
    text-align: center;
    min-height: 1.5rem;
}

.form-status.success { color: var(--accent-green); }
.form-status.error { color: #ff5f56; }


/* Footer */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: #04060b;
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
}

.footer-brand p {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
    font-weight: 400;
}

.footer-socials {
    display: flex;
    gap: 1.2rem;
}

.footer-socials a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition-fast);
}

.footer-socials a:hover {
    color: var(--primary-cyan);
    border-color: var(--primary-cyan);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Back To Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--primary-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-cyan);
    color: #040810;
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-section {
        grid-template-columns: 1fr;
        padding-top: 8rem;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

    .social-bar {
        justify-content: center;
    }

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

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

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

@media (max-width: 768px) {
    .navbar { padding: 1rem; }
    
    .mobile-toggle { display: block; }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(8, 11, 17, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-150%);
        transition: var(--transition-normal);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hero-title { font-size: 2.6rem; }
    .hero-subtitle { font-size: 1.3rem; }

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

    .upinviews-title { font-size: 2.5rem; }
    .upinviews-container { padding: 2.5rem 1.5rem; }
}