/* Premium Minimalist Design System - Poppins Font */

:root {
    --primary-font: 'Poppins', sans-serif;
    
    --bg-page: #f8f9fa;
    --bg-card: #ffffff;
    --bg-hover: #f1f3f5;
    --text-main: #1c1917;
    --text-muted: #57534e;
    --text-placeholder: #a8a29e;
    
    --border: #e7e5e4;
    --border-hover: #a8a29e;
    
    --accent-blue: #0066cc;
    --accent-blue-hover: #0044aa;
    --accent-green: #10b981;
    --accent-purple: #8b5cf6;
    
    --max-width: 960px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.06);
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--primary-font);
    background-color: var(--bg-page);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding-top: 80px; /* Offset for fixed navbar */
}

/* Utility Layouts */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.bg-light {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.margin-top-lg {
    margin-top: 56px;
}

.text-center {
    text-align: center;
}

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

/* Sticky Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 2000;
}

.nav-container {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

.nav-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-logo span {
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-main);
}

.btn-primary-nav {
    background-color: var(--text-main);
    color: var(--bg-card) !important;
    padding: 6px 14px;
    border-radius: 6px;
    transition: var(--transition);
}

.btn-primary-nav:hover {
    background-color: var(--accent-blue);
    transform: translateY(-0.5px);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 2100;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 60px 0;
}

.hero-section .container {
    max-width: 1140px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-dp-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.hero-dp {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid var(--bg-card);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.hero-dp:hover {
    transform: scale(1.02);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.hero-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-blue);
    background-color: rgba(0, 102, 204, 0.07);
    padding: 4px 10px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1.2px;
    margin-bottom: 20px;
    color: var(--text-main);
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-weight: 400;
}

.hero-ctas {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Buttons Styling */
.btn-primary {
    background-color: var(--text-main);
    color: var(--bg-card);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--text-main);
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    transform: translateY(-1px);
}

.btn-primary:hover .icon-arrow {
    transform: translateX(4px);
}

.icon-arrow {
    transition: var(--transition);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-main);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    text-decoration: none;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--bg-page);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

/* Browser Mockup Box */
.browser-mockup {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    width: 100%;
    transition: var(--transition);
}

.browser-mockup:hover {
    box-shadow: var(--shadow-hover);
}

.browser-bar {
    background-color: #f4f4f5;
    border-bottom: 1px solid var(--border);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

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

.browser-title {
    font-size: 11px;
    font-family: monospace;
    color: var(--text-muted);
    margin-left: 8px;
}

.browser-body {
    padding: 20px;
}

.browser-body.no-padding {
    padding: 0;
}

.project-screenshot {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: top;
    display: block;
    transition: opacity 0.35s ease-in-out, transform 0.35s ease-in-out;
}

.browser-body pre {
    margin: 0;
    overflow-x: auto;
}

.browser-body code {
    font-family: monospace;
    font-size: 11px;
    color: #44403c;
}

/* Syntax Highlighting */
.keyword { color: #db2777; font-weight: 600; }
.func { color: #2563eb; }
.str { color: #059669; }

/* Stats Panel */
.stats-section {
    padding: 40px 0;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
}

.stat-num {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -1.5px;
    color: var(--text-main);
}

.stat-desc {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Core Sections styling */
.section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 48px;
}

.section-header.center {
    text-align: center;
    margin-bottom: 32px;
}

.section-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-blue);
    margin-bottom: 8px;
    display: block;
}

.section-title {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.8px;
    color: var(--text-main);
}

/* Services section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background-color: var(--bg-page);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-card);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.service-icon {
    color: var(--accent-blue);
    margin-bottom: 20px;
    display: inline-flex;
    background-color: rgba(0, 102, 204, 0.05);
    padding: 10px;
    border-radius: 8px;
}

.service-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Portfolio Filter Tabs */
.portfolio-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    font-family: var(--primary-font);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 8px 18px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-main);
}

.tab-btn.active {
    background-color: var(--text-main);
    color: var(--bg-card);
    border-color: var(--text-main);
}

/* Tab Wrapper transitions */
.portfolio-item-wrapper {
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 1;
}

.portfolio-item-wrapper.hide-item {
    display: none;
    opacity: 0;
}

/* Portfolio section */
.portfolio-group {
    display: flex;
    flex-direction: column;
}

.group-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
    margin-bottom: 24px;
}

/* Featured Project Card (Alternate Rows) */
.featured-project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
    align-items: center;
    transition: var(--transition);
}

.featured-project-card.reverse {
    grid-template-columns: 1fr 1fr;
}

.project-info, .project-visual {
    width: 100%;
    min-width: 0; /* Prevents flex/grid children from overflowing their 1fr limit */
}

.featured-project-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-hover);
}

.project-badge-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.badge {
    font-size: 10px;
    font-weight: 600;
    background-color: var(--badge-bg);
    color: var(--text-main);
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge.highlight {
    background-color: var(--accent-blue);
    color: #ffffff;
}

.status {
    font-size: 11px;
    color: var(--text-muted);
}

.project-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.4px;
}

.project-text {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.project-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-skills span {
    font-size: 11px;
    font-family: monospace;
    background-color: var(--bg-page);
    color: var(--text-muted);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

/* Live Demo Box */
.demo-box {
    background-color: var(--bg-page);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
}

.demo-tag {
    font-size: 9px;
    font-weight: 700;
    background-color: #fef08a; /* Soft Yellow */
    color: #854d0e;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 6px;
}

.demo-description {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.btn-demo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-main);
    font-family: var(--primary-font);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-demo:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-page);
}

.feedback-instruction {
    font-size: 11px;
    color: var(--accent-blue);
    margin-top: 8px;
    font-weight: 500;
}

.hide { display: none; }

/* Visual Content classes */
.flex-center.bg-gray {
    background-color: #f4f4f5;
    min-height: 220px;
}

.flex-center.bg-dark {
    background-color: #09090b;
    min-height: 220px;
}

.flex-center.bg-green {
    background-color: #ecfdf5;
    min-height: 140px;
}

.flex-center.bg-purple {
    background-color: #f5f3ff;
    min-height: 140px;
}

/* Previu Plugin Mock UI */
.mock-plugin-ui {
    display: flex;
    width: 90%;
    height: 150px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.mock-sidebar {
    width: 30%;
    background-color: #f4f4f5;
    border-right: 1px solid var(--border);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mock-sidebar-item {
    font-size: 9px;
    font-weight: 600;
    color: var(--text-muted);
    padding: 4px;
    border-radius: 4px;
}

.mock-sidebar-item.active {
    background-color: rgba(0, 102, 204, 0.07);
    color: var(--accent-blue);
}

.mock-main {
    width: 70%;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.mock-comment {
    background-color: var(--bg-page);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.comment-user {
    font-size: 8px;
    font-weight: 700;
    color: var(--accent-blue);
}

.comment-content {
    font-size: 9px;
    color: var(--text-main);
}

/* Speed Gauge simulator */
.speed-gauge-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.gauge-ring {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 6px solid #27272a;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gauge-ring.running {
    border-top-color: var(--accent-blue);
    animation: spin-gauge 1s linear infinite;
}

.gauge-ring.passing {
    border-color: var(--accent-green);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

@keyframes spin-gauge {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.gauge-value {
    font-size: 26px;
    font-weight: 800;
    color: #ffffff;
}

.gauge-value.running {
    animation: pulse-value 1s infinite alternate;
}

@keyframes pulse-value {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.gauge-label {
    font-size: 11px;
    font-weight: 600;
    color: #ef4444;
}

.gauge-label.running { color: var(--text-placeholder); }
.gauge-label.passing { color: var(--accent-green); }

/* Custom Comment Pin placement (Interactive demo mode) */
.comment-pin {
    position: absolute;
    width: 24px;
    height: 24px;
    background-color: var(--accent-blue);
    color: #ffffff;
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0, 102, 204, 0.4);
    cursor: pointer;
    z-index: 5000;
    animation: scale-up-pin 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scale-up-pin {
    0% { transform: scale(0); }
    100% { transform: scale(1); }
}

.comment-popover {
    position: absolute;
    top: 32px;
    left: -80px;
    width: 180px;
    background-color: #ffffff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    z-index: 5001;
}

.comment-popover input {
    width: 100%;
    font-family: var(--primary-font);
    font-size: 10px;
    border: 1px solid var(--border);
    padding: 4px;
    border-radius: 4px;
    outline: none;
}

.comment-popover input:focus {
    border-color: var(--accent-blue);
}

/* Two-column Split Projects Grid */
.projects-split-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.split-project-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.split-project-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.card-mockup {
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--border);
}

.split-card-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.split-card-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.split-card-content p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    flex: 1;
}

/* SaaS Mock UI */
.mock-saas-ui {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.drag-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    border: 2px dashed #a7f3d0;
    background-color: rgba(167, 243, 208, 0.2);
    color: #065f46;
    padding: 16px 24px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
}

.ai-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: #5b21b6;
    font-size: 10px;
    font-weight: 600;
}

.ai-ring {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 3px solid #ddd6fe;
    border-top-color: var(--accent-purple);
    animation: spin-gauge 1s linear infinite;
}

/* Experience Section */
.experience-timeline {
    max-width: 720px;
    margin: 0 auto;
}

.timeline-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.role-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
}

.company-name {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
}

.timeline-date {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.timeline-list {
    list-style-type: none;
}

.timeline-list li {
    font-size: 13px;
    color: var(--text-muted);
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
}

.timeline-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 600px;
    margin: 32px auto 0 auto;
}

.contact-card-link {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-main);
    transition: var(--transition);
}

.contact-card-link:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.contact-card-icon {
    color: var(--accent-blue);
    background-color: rgba(0, 102, 204, 0.05);
    padding: 12px;
    border-radius: 50%;
    margin-bottom: 12px;
}

.contact-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 14px;
    font-weight: 600;
}

/* Footer Section */
.footer {
    padding: 32px 0;
    background-color: #1c1c1e;
    color: #8e8e93;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    color: #8e8e93;
    text-decoration: none;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: #ffffff;
}

/* Active Nav Highlighting */
.active-nav {
    color: var(--text-main) !important;
    font-weight: 700;
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }
    
    .hero-badge {
        margin: 0 auto 16px auto;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .hero-right {
        justify-content: center;
    }
    
    .featured-project-card, .featured-project-card.reverse {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-split-grid {
        grid-template-columns: 1fr;
    }
    
    /* Hamburger and Mobile Navigation Menu Overlay */
    .nav-toggle {
        display: block;
    }
    
    .hamburger {
        display: block;
        position: relative;
        width: 20px;
        height: 2px;
        background-color: var(--text-main);
        transition: transform 0.2s ease-in-out;
    }
    
    .hamburger::before,
    .hamburger::after {
        content: '';
        position: absolute;
        left: 0;
        width: 20px;
        height: 2px;
        background-color: var(--text-main);
        transition: transform 0.2s ease-in-out, top 0.2s ease-in-out 0.2s;
    }
    
    .hamburger::before {
        top: -6px;
    }
    
    .hamburger::after {
        top: 6px;
    }
    
    /* Transform to X when open */
    .nav-open .hamburger {
        background-color: transparent;
    }
    
    .nav-open .hamburger::before {
        top: 0;
        transform: rotate(45deg);
    }
    
    .nav-open .hamburger::after {
        top: 0;
        transform: rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
        z-index: 1999;
    }
    
    .nav-open .nav-links {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-links a {
        font-size: 20px !important;
        font-weight: 600;
        color: var(--text-main);
    }
    
    .btn-primary-nav {
        padding: 10px 24px !important;
        font-size: 16px !important;
    }
    
    body.nav-menu-active {
        overflow: hidden;
    }
}

@media (max-width: 640px) {
    body {
        padding-top: 70px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-dp {
        width: 240px;
        height: 240px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
}

/* Screenshot switcher (manual carousel control) */
.switcher-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 12px;
    width: 100%;
}

.screenshot-switcher {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scroll-behavior: smooth;
    max-width: 280px; /* Limits visible area to around 4 tabs */
    padding: 4px 0;
    scrollbar-width: none; /* Hide scrollbar Firefox */
}

.screenshot-switcher::-webkit-scrollbar {
    display: none; /* Hide scrollbar Chrome/Safari */
}

.switcher-btn {
    font-family: var(--primary-font);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 5px 12px;
    border-radius: 14px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap; /* Prevent tab text wrap */
    flex-shrink: 0;
}

.switcher-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-main);
}

.switcher-btn.active {
    background-color: var(--accent-blue);
    color: #ffffff;
    border-color: var(--accent-blue);
}

.switcher-arrow {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 11px;
    transition: var(--transition);
    flex-shrink: 0;
    user-select: none;
}

.switcher-arrow:hover:not(:disabled) {
    border-color: var(--border-hover);
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.switcher-arrow:disabled {
    opacity: 0.2;
    cursor: not-allowed;
    border-color: var(--border);
}

/* Lightbox Modal Structure */
.lightbox-modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 5000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(28, 25, 23, 0.7); /* dark neutral overlay */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    justify-content: center;
    align-items: center;
    animation: fadeInModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInModal {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #ffffff;
    font-size: 40px;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.lightbox-close:hover {
    color: var(--border-hover);
    transform: scale(1.1);
}

/* Scrollable Browser Frame Inside Modal */
.lightbox-browser {
    width: 90%;
    max-width: 900px;
    height: 80vh;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    animation: zoomInBrowser 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes zoomInBrowser {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.lightbox-bar {
    background-color: #f4f4f5;
    border-bottom: 1px solid var(--border);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.lightbox-scroll-container {
    flex: 1;
    overflow-y: auto;
    background-color: #ffffff;
}

.lightbox-scroll-container img {
    width: 100%;
    height: auto;
    display: block;
    transition: opacity 0.3s ease-in-out;
}

.scrollable-lightbox-trigger {
    cursor: zoom-in;
}

/* Lightbox Navigation Buttons */
.lightbox-nav-btn {
    background: rgba(28, 25, 23, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 24px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    z-index: 5002;
    margin: 0 20px;
}

.lightbox-nav-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    transform: scale(1.05);
}

.lightbox-nav-btn:disabled {
    opacity: 0.15;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .lightbox-nav-btn {
        position: absolute;
        bottom: 20px;
        margin: 0;
    }
    .lightbox-nav-btn.prev {
        left: 20px;
    }
    .lightbox-nav-btn.next {
        right: 20px;
    }
}