:root {
    --color-bg: #0f0f12;
    --color-bg-secondary: #17171c;
    --color-bg-tertiary: #1e1e24;
    --color-text: #e8e8e8;
    --color-text-secondary: #a0a0a8;
    --color-text-tertiary: #6e6e76;
    --color-accent: #d4af37;
    --color-accent-dark: #b8941f;
    --color-border: #2a2a30;

    --font-display: 'Crimson Pro', serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --border-radius: 0.5rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    position: relative;
    min-width: 320px;
}

/* Background Grid Overlay */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(212, 175, 55, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212, 175, 55, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    animation: gridFadeIn 2s ease-out forwards;
}

@keyframes gridFadeIn {
    to {
        opacity: 1;
    }
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 15, 18, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-100%);
    animation: navSlideDown 0.6s ease-out 0.3s forwards;
}

@keyframes navSlideDown {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0.25rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition);
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 2rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.6s forwards;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #4ade80;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
}

.title-line:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.title-line:nth-child(2) {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out 1s forwards;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 600px;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 1.2s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 1.4s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.2);
}

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    background-color: rgba(212, 175, 55, 0.1);
}

/* Hero Decoration */
.hero-decoration {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.6s forwards;
}

.code-block {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.code-header {
    background-color: var(--color-bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-border);
}

.code-dot:nth-child(1) {
    background-color: #ff5f56;
}

.code-dot:nth-child(2) {
    background-color: #ffbd2e;
}

.code-dot:nth-child(3) {
    background-color: #27c93f;
}

.code-content {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.code-keyword {
    color: #c678dd;
}

.code-string {
    color: #98c379;
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 2rem;
    position: relative;
    z-index: 1;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: var(--spacing-lg);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-accent);
    opacity: 0.6;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--color-text);
}

/* About Section */
.about {
    background-color: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-lead {
    font-size: 1.35rem;
    line-height: 1.7;
    color: var(--color-text);
}

.about-text p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--color-accent);
    transform: translateX(10px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Work Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: 2.5rem;
}

.project-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.project-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--color-bg-tertiary);
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-content {
    padding: 2rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.project-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.tag {
    padding: 0.4rem 0.8rem;
    background-color: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 0.25rem;
    font-size: 0.85rem;
    color: var(--color-accent);
    font-family: var(--font-mono);
}

.project-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    gap: 1rem;
}

/* Skills Section */
.skills {
    background-color: var(--color-bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: 2.5rem;
}

.skill-category {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.skill-category-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.skill-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.skill-list li {
    color: var(--color-text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Certifications Section */
.certifications {
    background-color: var(--color-bg);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    gap: 2.5rem;
}

.cert-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.cert-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(212, 175, 55, 0.2);
}

.cert-badge {
    margin-bottom: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.cert-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.cert-subtitle {
    color: var(--color-accent);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.cert-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    text-align: left;
    width: 100%;
}

.cert-list li {
    color: var(--color-text-secondary);
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.cert-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-lead {
    font-size: 1.35rem;
    line-height: 1.7;
    color: var(--color-text);
}

.contact-text p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
}

.contact-method:hover {
    border-color: var(--color-accent);
    transform: translateX(10px);
    background-color: rgba(212, 175, 55, 0.05);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.contact-label {
    font-weight: 500;
    overflow-wrap: break-word;
    word-wrap: break-word;
    hyphens: auto;
}

/* Footer */
.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent);
}

/* Responsive Design */

/* Large tablets and small desktops */
@media (max-width: 1200px) {
    .hero-content {
        gap: 3rem;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .certifications-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

/* Tablets */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-decoration {
        max-width: 600px;
        margin: 0 auto;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-stats {
        flex-direction: row;
        gap: 1rem;
    }

    .stat-card:hover {
        transform: translateY(-5px);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

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

/* Mobile devices */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    .nav-content {
        padding: 1rem;
        flex-wrap: wrap;
    }

    .nav-logo {
        font-size: 1rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .hero {
        padding: 6rem 1rem 2rem;
        min-height: auto;
    }

    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

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

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        text-align: center;
        width: 100%;
        padding: 1.25rem 2rem;
        font-size: 1rem;
    }

    .code-block {
        font-size: 0.8rem;
        margin: 0 -0.5rem;
    }

    .code-content {
        font-size: 0.75rem;
        padding: 1rem;
        white-space: pre-wrap;
    }

    section {
        padding: var(--spacing-lg) 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        margin-bottom: var(--spacing-md);
    }

    .section-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .section-number {
        font-size: 0.9rem;
    }

    .about-lead {
        font-size: 1.15rem;
    }

    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-card {
        padding: 1.5rem;
    }

    .stat-card:hover {
        transform: translateX(0) translateY(-5px);
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .project-card {
        margin-bottom: 1rem;
    }

    .project-card:hover {
        transform: translateY(-5px);
    }

    .project-title {
        font-size: 1.5rem;
    }

    .project-tags {
        gap: 0.4rem;
    }

    .tag {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }

    .cert-card {
        padding: 2rem;
    }

    .cert-title {
        font-size: 1.25rem;
    }

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

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .skill-category {
        padding: 2rem;
    }

    .skill-category:hover {
        transform: translateY(-3px);
    }

    .skill-category-title {
        font-size: 1.5rem;
    }

    .contact-lead {
        font-size: 1.15rem;
    }

    .contact-method {
        padding: 1.25rem;
    }

    .contact-method:hover {
        transform: translateX(5px);
    }

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

    .contact-label {
        font-size: 0.9rem;
        word-break: break-word;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        padding: 0 1rem;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2.5rem;
    }

    .nav-logo {
        width: 100%;
        margin-bottom: 0.75rem;
        text-align: center;
    }

    .nav-content {
        justify-content: center;
    }

    .nav-links {
        width: 100%;
        justify-content: space-around;
        font-size: 0.75rem;
        gap: 0.25rem;
    }

    .nav-links a {
        padding: 0.5rem 0.25rem;
        min-height: 40px;
    }

    .hero {
        padding: 5rem 1rem 1.5rem;
    }

    .hero-title {
        font-size: clamp(1.85rem, 10vw, 3rem);
        margin-bottom: 1rem;
        word-break: break-word;
        hyphens: auto;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .hero-label {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
        margin-bottom: 1.5rem;
    }

    .section-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }

    .about-lead,
    .contact-lead {
        font-size: 1.05rem;
    }

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

    .stat-label {
        font-size: 0.85rem;
    }

    .project-title {
        font-size: 1.35rem;
    }

    .project-description {
        font-size: 0.95rem;
    }

    .project-image {
        height: 200px;
    }

    .cert-badge svg {
        width: 50px;
        height: 50px;
    }

    .cert-title {
        font-size: 1.15rem;
    }

    .cert-list {
        font-size: 0.9rem;
    }

    .skill-category-title {
        font-size: 1.35rem;
    }

    .skill-list {
        font-size: 0.95rem;
    }

    .contact-method {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }

    .footer {
        padding: 2rem 1rem;
    }

    .footer-content p {
        font-size: 0.85rem;
    }

    .footer-links {
        font-size: 0.85rem;
    }
}

/* Scroll-triggered animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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