/* Professional Portfolio - Inspired by clean, modern design */

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

:root {
    /* Colors */
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f7f7f7;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    padding: var(--space-md) 0;
}

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

.nav-links {
    display: flex;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--gray-500);
}

.nav-link {
    padding: 0 0.25rem;
    transition: var(--transition);
}

.nav-link:first-child {
    padding-left: 0;
}

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

.nav-identity {
    display: flex;
    align-items: center;
}

.hello-text {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-right: 0.25rem;
}

.nav-name {
    font-size: 0.875rem;
    font-weight: 600;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
}

.available-text {
    color: #22c55e;
}


.book-link {
    color: var(--black);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 2px solid var(--black);
    border-radius: 4px;
    transition: var(--transition);
    margin-left: var(--space-sm);
}

.book-link:hover {
    background: var(--black);
    color: var(--white);
}

/* Hero Section */
.hero {
    padding-top: calc(80px + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

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

.hero-tags .tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--gray-200);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 300;
    margin-bottom: var(--space-xl);
    color: var(--gray-600);
    line-height: 1.3;
}

.typing-text {
    display: inline-block;
    position: relative;
    min-height: 1.3em;
}

.typing-text::after {
    content: '|';
    display: inline-block;
    color: var(--gray-600);
    animation: blink 1s infinite;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.achievement-link {
    color: var(--black);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid var(--gray-300);
    transition: border-color 0.2s ease;
}

.achievement-link:hover {
    border-bottom-color: var(--black);
}

.hero-achievement {
    font-size: 1rem;
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: var(--space-xl);
    background: var(--gray-100);
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    border-left: 3px solid var(--gray-400);
    display: inline-block;
}

.hero-subhead {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
    font-family: var(--font-mono);
}

.hero-achievement {
    margin: var(--space-lg) 0;
}

.achievement-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: #ffd700;
    border: 1px solid #daa520;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--black);
    box-shadow: 0 2px 4px rgba(218, 165, 32, 0.2);
    margin-bottom: var(--space-sm);
    text-decoration: none;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-primary {
    background: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    color: var(--black);
    text-decoration: underline;
}

/* Code Editor Visual */
.code-editor {
    background: #002b36;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.editor-header {
    background: #073642;
    padding: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.editor-dots {
    display: flex;
    gap: 6px;
}

.editor-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-700);
}

.editor-dots span:nth-child(1) { background: #ef4444; }
.editor-dots span:nth-child(2) { background: #f59e0b; }
.editor-dots span:nth-child(3) { background: #10b981; }

.editor-title {
    color: #586e75;
    font-size: 0.75rem;
}

.editor-body {
    padding: var(--space-lg);
    overflow-x: auto;
}

.editor-body pre {
    margin: 0;
}

.editor-body code {
    color: #839496;
    line-height: 1.6;
}

/* Syntax Highlighting - Solarized Dark */
.keyword { color: #859900; }
.class { color: #cb4b16; }
.function { color: #268bd2; }
.param { color: #b58900; }
.string { color: #2aa198; }
.type { color: #dc322f; }
.comment { color: #586e75; font-style: italic; }
.number { color: #d33682; }

/* Services Section */
.services {
    padding: var(--space-3xl) 0;
    background: var(--gray-100);
}

.section-intro {
    max-width: 800px;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: 8px;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.service-number {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-bottom: var(--space-sm);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.service-description {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: var(--space-xs) 0;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.service-features li::before {
    content: "→ ";
    color: var(--gray-400);
    margin-right: var(--space-xs);
}

/* Projects Section */
.projects {
    padding: var(--space-3xl) 0;
    background: var(--gray-100);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
}

.projects-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

.project {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--gray-200);
    align-items: center;
}

.project:last-child {
    border-bottom: none;
}

.project:nth-child(even) {
    direction: rtl;
}

.project:nth-child(even) > * {
    direction: ltr;
}

.project-meta {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    color: var(--gray-500);
}

.project-category {
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-title {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.project-description {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.project-tech span {
    padding: var(--space-xs) var(--space-sm);
    background: var(--white);
    border-radius: 4px;
    font-size: 0.875rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    font-weight: 500;
    color: var(--black);
}

.project-link:hover {
    text-decoration: underline;
}

/* Project Visuals */
.project-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-preview {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: 8px;
    width: 100%;
}

.terminal-window {
    background: #f5f5f5;
    color: #424242;
    padding: var(--space-md);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    border: 1px solid #d6d6d6;
}

.terminal-header {
    color: #8a8a8a;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid #d6d6d6;
}

.terminal-content {
    line-height: 1.6;
}

.prompt {
    color: #20A5BA;
    margin-right: var(--space-xs);
}

.output {
    color: #424242;
}

.api-preview {
    background: #f5f5f5;
    border: 1px solid #d6d6d6;
    border-radius: 4px;
    overflow: hidden;
}

.api-endpoint {
    background: #eeeeee;
    color: #424242;
    padding: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    border-bottom: 1px solid #d6d6d6;
}

.api-response {
    padding: var(--space-md);
    color: #424242;
}

.api-response pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #424242;
}

/* Shades of Purple theme for Devesis */
.devesis-terminal {
    background: #2D2B55 !important;
    color: #FFFFFF !important;
    border: 1px solid #28284E !important;
}

.devesis-terminal .terminal-header {
    color: #A599E9 !important;
    border-bottom: 1px solid #28284E !important;
}

.devesis-terminal .terminal-content {
    color: #FFFFFF !important;
}

.devesis-terminal pre {
    color: #A5FF90 !important;
}

/* Scarlet Protocol theme for Analytics Agent CLI */
.analytics-terminal {
    background: #1c153d !important;
    color: #c7c7c7 !important;
    border: 1px solid #101116 !important;
}

.analytics-terminal .terminal-header {
    color: #e41951 !important;
    border-bottom: 1px solid #101116 !important;
}

.analytics-terminal .prompt {
    color: #e41951 !important;
}

.analytics-terminal .output {
    color: #c7c7c7 !important;
}

.chart-preview {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    padding: var(--space-lg);
}

.chart-header {
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.chart-stats {
    display: flex;
    gap: var(--space-xl);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat .label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.stat .value {
    font-size: 1.5rem;
    font-weight: 600;
}

.stat .value.positive {
    color: #10b981;
}

.more-projects {
    text-align: center;
    margin-top: var(--space-3xl);
}

.more-projects p {
    color: var(--gray-600);
    margin-bottom: var(--space-sm);
}

.github-link {
    font-weight: 600;
    color: var(--black);
}

.github-link:hover {
    text-decoration: underline;
}

/* About Section */
.about {
    padding: var(--space-3xl) 0;
    background: var(--gray-100);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
}

.about-text {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.about-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.about-stats .stat {
    text-align: center;
}

.about-stats .number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
}

.about-stats .label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.about-skills h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-lg);
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.skill-group h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.skill-group ul {
    list-style: none;
}

.skill-group li {
    padding: var(--space-xs) 0;
    font-size: 0.875rem;
}

.certifications h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.certifications ul {
    list-style: none;
}

.certifications li {
    padding: var(--space-xs) 0;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.certifications li::before {
    content: "✓ ";
    color: #10b981;
    margin-right: var(--space-xs);
}

/* Skills Section */
.skills {
    padding: var(--space-3xl) 0;
}

/* Technical Stack Cards */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.stack-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: var(--space-xl);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stack-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

.stack-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--gray-100);
}

.stack-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tech-item {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s ease;
}

.tech-item:hover {
    background: var(--gray-200);
}

/* Certifications Card */
.certifications-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: var(--space-xl);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.cert-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--gray-100);
}

.cert-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.cert-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
}

.cert-badge {
    color: #10b981;
    font-weight: bold;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.cert-text {
    font-size: 0.9rem;
    color: var(--gray-700);
    line-height: 1.5;
}

/* Contact Section */
.contact {
    padding: var(--space-3xl) 0;
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.contact-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.contact-info {
    margin-bottom: var(--space-xl);
}

.contact-email,
.contact-phone {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--black);
}

.contact-email:hover,
.contact-phone:hover {
    text-decoration: underline;
}

.contact-location {
    color: var(--gray-600);
}

.contact-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-lg);
}

.social-links a {
    color: var(--gray-600);
    font-weight: 500;
}

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

/* Footer */
.footer {
    padding: var(--space-lg) 0;
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-container,
    .project,
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .project:nth-child(even) {
        direction: ltr;
    }
    
    .nav-actions {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .tech-stack {
        grid-template-columns: 1fr;
    }
}

/* Smooth scroll animations */
section > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

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

/* Stagger animation delays */
section > *:nth-child(1) { animation-delay: 0.1s; }
section > *:nth-child(2) { animation-delay: 0.2s; }
section > *:nth-child(3) { animation-delay: 0.3s; }
section > *:nth-child(4) { animation-delay: 0.4s; }

/* Project Links Styling */
.project-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.project-links .project-link {
    padding: var(--space-xs) var(--space-sm);
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition);
    text-decoration: none;
    align-self: flex-start;
}

.project-links .project-link:hover {
    background: var(--gray-100);
    text-decoration: none;
}