/* CSS Design System - Minimalist & Clean Developer Portfolio */

:root {
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    
    /* Layout & Typography */
    --font-sans: 'Albert Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-heading: 'Outfit', var(--font-sans);
    --font-mono: 'Fira Code', 'Consolas', 'Courier New', monospace;
    --container-width: 1140px;
    --header-height: 80px;
}

/* Theme definitions */
html[data-theme="dark"] {
    --bg-color: #0c0c0e;
    --card-bg: #121214;
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #8b8d99;
    --accent: #6366f1;
    --border-color: #27272a;
    --border-hover: #3f3f46;
    --shadow: rgba(0, 0, 0, 0.4);
}

html[data-theme="light"] {
    --bg-color: #fcfcfd;
    --card-bg: #f4f4f5;
    --text-primary: #09090b;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --accent: #4f46e5;
    --border-color: #e4e4e7;
    --border-hover: #d4d4d8;
    --shadow: rgba(0, 0, 0, 0.05);
}

html[data-theme="dracula"] {
    --bg-color: #282a36;
    --card-bg: #1d1f27;
    --text-primary: #f8f8f2;
    --text-secondary: #f8f8f2;
    --text-muted: #8795c7;
    --accent: #ff79c6;
    --border-color: #44475a;
    --border-hover: #8795c7;
    --shadow: rgba(0, 0, 0, 0.5);
}

html[data-theme="cyberpunk"] {
    --bg-color: #000000;
    --card-bg: #090909;
    --text-primary: #fcee0a;
    --text-secondary: #3b82f6;
    --text-muted: #ff007f;
    --accent: #3b82f6;
    --border-color: #fcee0a;
    --border-hover: #3b82f6;
    --shadow: rgba(255, 0, 127, 0.2);
}

html[data-theme="nord"] {
    --bg-color: #2e3440;
    --card-bg: #3b4252;
    --text-primary: #eceff4;
    --text-secondary: #d8dee9;
    --text-muted: #b8c5db;
    --accent: #81a1c1;
    --border-color: #434c5e;
    --border-hover: #8691a6;
    --shadow: rgba(0, 0, 0, 0.3);
}

html[data-theme="monokai"] {
    --bg-color: #272822;
    --card-bg: #1e1f1c;
    --text-primary: #f8f8f2;
    --text-secondary: #f8f8f2;
    --text-muted: #9c9780;
    --accent: #a6e22e;
    --border-color: #3e3d32;
    --border-hover: #9c9780;
    --shadow: rgba(0, 0, 0, 0.4);
}

html[data-theme="gemini"] {
    --bg-color: #030306;
    --card-bg: #090812;
    --text-primary: #f5f3ff;
    --text-secondary: #c7d2fe;
    --text-muted: #818cf8;
    --accent: #818cf8;
    --border-color: #1e1b4b;
    --border-hover: #312e81;
    --shadow: rgba(167, 139, 250, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

.badge, 
.badge-group span, 
.project-tags span, 
.status-widget, 
.timeline-date,
.cert-date,
.terminal-body {
    font-family: var(--font-mono);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

hr.divider {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 4rem 0;
    transition: border-color var(--transition-normal);
}

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-heading);
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border: 1px solid var(--text-primary);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--text-primary);
}

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

.btn-secondary:hover {
    background-color: var(--card-bg);
    border-color: var(--border-hover);
}

/* Header & Theme Switcher */
.header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background-color: var(--bg-color);
    opacity: 0.96;
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: border-color var(--transition-normal), background-color var(--transition-normal);
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

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

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--text-primary);
}

/* Theme toggle button styling */
.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.theme-toggle-btn:hover {
    background-color: var(--card-bg);
    border-color: var(--accent);
    transform: scale(1.08) rotate(15deg);
}

/* Show/hide sun/moon depending on theme attribute */
html[data-theme="dark"] .theme-icon-sun { display: block; }
html[data-theme="dark"] .theme-icon-moon { display: none; }
html[data-theme="light"] .theme-icon-sun { display: none; }
html[data-theme="light"] .theme-icon-moon { display: block; }

/* Hero Section */
.hero {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.hero-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-avatar-wrapper {
    flex-shrink: 0;
    position: relative;
    width: 170px;
    height: 170px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: var(--card-bg);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.hero-avatar-wrapper:hover {
    border-color: var(--accent);
    transform: scale(1.03);
}

.hero-avatar {
    width: 154px;
    height: 154px;
    border-radius: 50%;
    object-fit: cover;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Section Grids (About, Services, Projects, Experience, Contact) */
.section {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.section-grid {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-content-col {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Services / What I Do Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.service-card {
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.service-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* About Section */
.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 580px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.skills-category h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.skills-category ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skills-category li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skills-category li::before {
    content: "—";
    color: var(--text-muted);
}

/* Projects Section */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.project-card {
    display: flex;
    width: 100%;
    text-align: left;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg) scale3d(1, 1, 1);
    transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.card-glare {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}

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

.project-info {
    max-width: 80%;
}

.project-name {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.project-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.project-tags span {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 4px;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.project-link {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    background: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.project-card:hover .project-link {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border-color: var(--text-primary);
    transform: rotate(45deg);
}

/* Experience & Education Timeline */
.timeline {
    position: relative;
    border-left: 1px solid var(--border-color);
    padding-left: 2rem;
    margin-left: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: calc(-2rem - 6px);
    top: 6px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 2px solid var(--accent);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.timeline-subtitle {
    display: inline-block;
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 600px;
}

.coursework-badges {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.coursework-badges strong {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.badge-group span {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.verify-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--accent);
    margin-top: 0.75rem;
    font-weight: 500;
    width: fit-content;
    border-bottom: 1px dashed transparent;
    transition: all var(--transition-fast);
}

.verify-link:hover {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

/* Certifications Section */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.cert-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
    gap: 1.5rem;
}

.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.06);
}

.cert-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.cert-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
}

.cert-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.cert-verify-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.cert-verify-btn:hover {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border-color: var(--text-primary);
}

.cert-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Contact Section */
.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 580px;
}

.contact-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.social-links {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.social-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

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

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6rem;
}

/* Details Modal Overlay */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 540px;
    padding: 2.5rem;
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
    z-index: 201;
}

.modal.open .modal-container {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-project-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.modal-project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.modal-project-tags span {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 4px;
}

.modal-body-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.modal-highlights {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.modal-highlights h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.modal-highlights ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-left: 0.5rem;
}

.modal-highlights li {
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.25rem;
}

.modal-highlights li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
}

/* Media Queries (Responsive Design) */
@media (max-width: 768px) {
    .section-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .hero {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
    
    .hero-flex {
        flex-direction: column-reverse;
        align-items: center;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-avatar-wrapper {
        width: 170px;
        height: 170px;
    }
    .hero-avatar {
        width: 154px;
        height: 154px;
    }
    
    hr.divider {
        margin: 3rem 0;
    }
    
    .project-card {
        padding: 1.5rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .project-info {
        max-width: 100%;
    }
    
    .project-link {
        align-self: flex-end;
    }
    
    .modal-container {
        padding: 1.75rem;
    }
}

/* ==========================================================================
   Portfolio Expansion Additions: Tech Stack, Focus, GitHub Stats, and Terminal
   ========================================================================== */

/* 1. Tech Stack & Focus Layout */
.skills-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.skills-category-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.85rem;
}

.skill-badge-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-badge-item i {
    font-size: 1.25rem;
}

.skill-badge-item:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px var(--shadow);
}

/* Current Focus Styles */
.focus-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.focus-item {
    display: flex;
    gap: 1rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 8px;
    transition: border-color var(--transition-fast);
}

.focus-item:hover {
    border-color: var(--border-hover);
}

.focus-icon {
    font-size: 1.5rem;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.focus-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.focus-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 2. GitHub Stats Styles */
.github-stats-container {
    margin-top: 3rem;
    width: 100%;
}

.sub-divider {
    border: 0;
    border-top: 1px dashed var(--border-color);
    margin: 2rem 0;
}

.github-stats-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.github-stats-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.github-stats-grid img {
    height: 195px;
    width: auto;
    max-width: 100%;
    border-radius: 8px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    transition: border-color var(--transition-fast);
}

.github-stats-grid img:hover {
    border-color: var(--border-hover);
}

/* 3. Interactive Developer Terminal Styles */
.terminal-container {
    background-color: #09090b;
    border: 1px solid #27272a;
    border-radius: 8px;
    overflow: hidden;
    font-family: var(--font-mono);
}

.terminal-header {
    background-color: #18181b;
    border-bottom: 1px solid #27272a;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    position: relative;
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.term-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.term-btn.close { background-color: #ef4444; }
.term-btn.minimize { background-color: #eab308; }
.term-btn.maximize { background-color: #22c55e; }

.terminal-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    color: #a1a1aa;
    font-weight: 500;
}

.terminal-body {
    padding: 1.5rem;
    min-height: 240px;
    max-height: 320px;
    overflow-y: auto;
    color: #a1a1aa;
    font-size: 0.9rem;
    line-height: 1.5;
    cursor: text;
}

.terminal-body.game-active {
    max-height: 540px;
}

.terminal-line {
    margin-bottom: 0.5rem;
    white-space: pre-wrap;
}

.terminal-cmd-highlight {
    color: #a78bfa;
    font-weight: 600;
}

.terminal-prompt {
    color: #22c55e;
    font-weight: 600;
    margin-right: 0.5rem;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    position: relative;
}

.terminal-input-display {
    color: #f4f4f5;
    white-space: pre-wrap;
}

.terminal-cursor {
    color: #22c55e;
    font-weight: bold;
    animation: blink 1s step-end infinite;
}

#terminal-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.terminal-output-container {
    margin-top: 0.5rem;
}

.terminal-output-line {
    margin-bottom: 0.5rem;
    white-space: pre-wrap;
}

.terminal-output-line.cmd-echo {
    color: #f4f4f5;
}

.terminal-output-line.system-out {
    color: #a1a1aa;
}

.terminal-output-line.error-out {
    color: #ef4444;
}

.terminal-output-line.diag-out {
    color: #a78bfa;
}

@keyframes blink {
    from, to { color: transparent; }
    50% { color: #22c55e; }
}

/* Responsive Overrides */
@media (max-width: 768px) {
    .skills-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .github-stats-grid {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .github-stats-grid img {
        width: 100%;
        height: auto;
    }
}

/* 4. Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px var(--shadow);
    z-index: 90;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-fast), border-color var(--transition-fast);
}

.back-to-top-btn:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.back-to-top-btn.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

@media (max-width: 768px) {
    .back-to-top-btn {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
}

/* 5. Status Widget */
.status-widget {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
    box-shadow: 0 2px 8px var(--shadow);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981; /* Emerald green */
    border-radius: 50%;
    position: relative;
    display: inline-block;
}

.status-dot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #10b981;
    border-radius: 50%;
    animation: status-ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes status-ping {
    75%, 100% {
        transform: scale(2.5);
        opacity: 0;
    }
}

/* 6. Subtle Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* 7. Entrance Animations (Page Load) */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Apply entrance animations to Hero elements */
.hero-content .badge {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.1s;
}
.hero-content .hero-title {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.25s;
}
.hero-content .hero-subtitle {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.4s;
}
.hero-content .status-widget {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.55s;
}
.hero-content .hero-actions {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.7s;
}
.hero-avatar-wrapper {
    animation: scaleIn 1s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.3s;
}