/* ===== Self-hosted JetBrains Mono Font ===== */
@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url('fonts/jetbrains-mono-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url('fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ===== CSS Custom Properties ===== */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --text-muted: #555555;
    --accent: #ff0040;
    --accent-glow: rgba(255, 0, 64, 0.3);
    --accent-subtle: rgba(255, 0, 64, 0.1);
    --border-color: #222222;
    --terminal-green: #00ff00;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-logo:hover {
    color: var(--text-primary);
}

.logo-bracket {
    color: var(--accent);
}

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

.nav-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-fast);
}

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

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

/* Hamburger Menu */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-fast);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 700px;
}

/* Terminal Window */
.terminal-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    text-align: left;
    margin-bottom: 2rem;
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca40; }

.terminal-title {
    margin-left: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.terminal-body {
    padding: 1.5rem;
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: var(--accent);
    margin-right: 0.5rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    min-height: 3.5rem;
}

.typing-text {
    color: var(--terminal-green);
}

.cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.separator {
    color: var(--accent);
    margin: 0 0.5rem;
}

.hero-description {
    color: var(--text-muted);
    font-style: italic;
}

/* Social Links */
.hero-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

/* Scroll Indicator */
.scroll-indicator {
    display: inline-block;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    display: block;
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--accent);
    border-bottom: 2px solid var(--accent);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(10px); }
    60% { transform: translateY(5px); }
}

/* ===== Sections ===== */
.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.title-prefix {
    color: var(--accent);
}

/* ===== About Section ===== */
.about-content {
    max-width: 700px;
}

.profile-image-container {
    margin-bottom: 2rem;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 3px solid var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transition: all var(--transition-normal);
    object-fit: cover;
}

.profile-image:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--accent-glow);
}

.terminal-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-output {
    color: var(--text-secondary);
    line-height: 1.8;
}

.focus-list {
    margin-top: 1rem;
}

.focus-list li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.bullet {
    color: var(--accent);
    margin-right: 0.75rem;
}

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

.skill-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: border-color var(--transition-fast);
}

.skill-category:hover {
    border-color: var(--accent);
}

.skill-category-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-icon {
    font-size: 1.25rem;
}

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

.skill-tag {
    background: var(--accent-subtle);
    color: var(--accent);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* ===== Certifications Section ===== */
.section-intro {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

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

.cert-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all var(--transition-fast);
}

.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cert-logo {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-logo svg {
    width: 100%;
    height: 100%;
    transition: all var(--transition-fast);
}

.cert-card:hover .cert-logo svg {
    filter: drop-shadow(0 0 10px var(--accent-glow));
    transform: scale(1.08);
}

.cert-info {
    flex: 1;
}

.cert-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.cert-full {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.cert-issuer {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== Projects Section ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all var(--transition-fast);
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-icon {
    width: 40px;
    height: 40px;
    color: var(--accent);
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.project-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.project-link svg {
    width: 20px;
    height: 20px;
}

.project-link:hover {
    color: var(--accent);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

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

.project-tag {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.project-tag::before {
    content: '#';
    color: var(--accent);
}

/* ===== Blog Section ===== */
.blog-intro {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.blog-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.blog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.blog-category {
    background: var(--accent-subtle);
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-date {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.blog-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.blog-card:hover .blog-title {
    color: var(--accent);
}

.blog-excerpt {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.blog-tag {
    color: var(--text-muted);
    font-size: 0.7rem;
}

.blog-tag::before {
    content: '#';
    color: var(--accent);
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.blog-link:hover {
    color: var(--text-primary);
}

.blog-link .arrow {
    transition: transform var(--transition-fast);
}

.blog-link:hover .arrow {
    transform: translateX(4px);
}

.blog-more {
    text-align: center;
    margin-top: 2rem;
}

.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 1rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.btn-view-all:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
}

.btn-view-all .prompt {
    color: var(--accent);
}

.btn-view-all .arrow {
    transition: transform var(--transition-fast);
}

.btn-view-all:hover .arrow {
    transform: translateX(4px);
}

/* Blog Card Clickable */
.blog-card {
    cursor: pointer;
}

/* ===== Blog Modal ===== */
.blog-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.blog-modal.active {
    opacity: 1;
    visibility: visible;
}

.blog-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.blog-modal-container {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    z-index: 2001;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

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

.blog-modal-content {
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.blog-modal-content .terminal-header {
    position: relative;
    flex-shrink: 0;
}

.modal-close {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
    transition: color var(--transition-fast);
}

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

.blog-modal-body {
    overflow-y: auto;
    max-height: calc(85vh - 50px);
    padding: 2rem !important;
}

.blog-modal-body::-webkit-scrollbar {
    width: 8px;
}

.blog-modal-body::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

.blog-modal-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.blog-modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Blog Post Content Styles */
.blog-post-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.blog-post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.blog-post-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 1rem;
}

.blog-post-content {
    color: var(--text-secondary);
    line-height: 1.8;
}

.blog-post-content h2 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin: 2rem 0 1rem;
    padding-left: 1rem;
    border-left: 3px solid var(--accent);
}

.blog-post-content p {
    margin-bottom: 1rem;
}

.blog-post-content code {
    background: var(--bg-tertiary);
    color: var(--accent);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9em;
}

.blog-post-content pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.blog-post-content pre code {
    background: none;
    padding: 0;
    color: var(--terminal-green);
}

.blog-post-content ul,
.blog-post-content ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.blog-post-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.blog-post-content li::marker {
    color: var(--accent);
}

.blog-post-content strong {
    color: var(--text-primary);
}

.blog-post-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-style: italic;
}

/* ===== Contact Section ===== */
.contact-content {
    max-width: 600px;
}

.contact-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--accent);
}

.contact-icon {
    width: 24px;
    text-align: center;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.footer-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-separator {
    margin: 0 1rem;
    color: var(--border-color);
}

.footer code {
    color: var(--accent);
}

/* ===== Scroll Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero {
        padding: 5rem 1.5rem 2rem;
    }

    .hero-title {
        font-size: 1.75rem;
        min-height: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .terminal-body {
        padding: 1rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .container {
        padding: 0 1.5rem;
    }

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

    .cert-card {
        flex-direction: column;
        text-align: center;
    }

    .cert-logo {
        width: 100px;
        height: 100px;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .blog-card {
        padding: 1.25rem;
    }

    .blog-title {
        font-size: 1rem;
    }

    .footer-text {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-separator {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-links {
        gap: 1rem;
    }

    .social-link {
        width: 40px;
        height: 40px;
    }

    .achievement-card {
        padding: 1.5rem;
    }

    .achievement-number {
        font-size: 2rem;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Selection color */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}