/* 
 * Premium Editorial Developer Portfolio
 * Nampally Naveen
 */

 :root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #121212;
    --bg-tertiary: #1a1a1a;
    
    --text-primary: #fafafa;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    --accent: #e5e5e5;
    --accent-hover: #ffffff;
    
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.2);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', Courier, monospace;
    
    --transition-fast: 150ms ease;
    --transition-medium: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.22, 1, 0.36, 1);
    
    --container-width: 900px;
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    position: relative;
}

::selection {
    background: var(--text-primary);
    color: var(--bg-primary);
}

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

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

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

.section-padding {
    padding: 6rem 0;
}

.split-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

@media (min-width: 768px) {
    .split-section {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.section-title::after {
    content: "";
    flex-grow: 1;
    height: 1px;
    background-color: var(--border-subtle);
    margin-left: 1rem;
}

.dot {
    color: var(--text-muted);
    margin: 0 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-medium);
    cursor: pointer;
    border-radius: 2px;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    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-strong);
}

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

/* Link with Icon */
.link-with-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.link-with-icon svg {
    transition: transform var(--transition-fast);
}

.link-with-icon:hover svg {
    transform: translate(2px, -2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    transition: transform var(--transition-medium);
}

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

.nav-logo {
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: -0.03em;
}

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

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 1rem 2rem 2rem;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-subtle);
    position: absolute;
    width: 100%;
    top: 100%;
    left: 0;
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    padding: 1rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-subtle);
}

.mobile-link:last-child {
    border-bottom: none;
}

@media (max-width: 767px) {
    .desktop-only {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem; /* Account for navbar */
}

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
    font-weight: 400;
}

.hero-tech {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
}

.hero-social {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    .hero-actions .btn {
        width: 100%;
    }
}

/* About Section */
.about-content {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 650px;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* Projects Section */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 6rem;
}

.project-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    .project-item {
        grid-template-columns: 1fr 1fr;
    }
    .project-item:nth-child(even) {
        direction: rtl;
    }
    .project-item:nth-child(even) > * {
        direction: ltr;
    }
}

.project-info {
    display: flex;
    flex-direction: column;
}

.project-title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

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

.project-tech span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 2px;
    color: var(--text-secondary);
}

.project-points {
    list-style: none;
    margin-bottom: 2rem;
}

.project-points li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.project-points li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.project-links {
    display: flex;
    gap: 1.5rem;
}

/* Mockups / Abstract project visuals */
.project-image-placeholder {
    aspect-ratio: 4/3;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-ui {
    width: 80%;
    height: 70%;
    min-height: fit-content;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.mockup-header {
    height: 24px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    padding: 0 0.5rem;
    gap: 4px;
}

.dot-red, .dot-yellow, .dot-green {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.mockup-body {
    flex: 1;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Specific Mockups */
.mockup-bi .mockup-query {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 0.5rem;
    border-radius: 2px;
    border: 1px solid var(--border-subtle);
    margin-top: 1rem;
}
.mockup-bi .mockup-chart {
    width: 100%;
    height: 60px;
    border-left: 1px solid var(--border-strong);
    border-bottom: 1px solid var(--border-strong);
    position: relative;
}
.mockup-bi .mockup-chart::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 40%, var(--border-strong) 40%, var(--border-strong) 45%, transparent 45%, transparent 70%, var(--border-strong) 70%, var(--border-strong) 75%, transparent 75%);
    opacity: 0.5;
}

.mockup-rag {
    gap: 0.1rem;
    width: 100%;
}
.rag-node {
    font-size: 0.4rem;
    font-family: var(--font-mono);
    padding: 0.15rem 0.3rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    color: var(--text-secondary);
    border-radius: 2px;
    width: 85%;
    text-align: center;
}
.rag-node.outline {
    background: transparent;
    border-style: dashed;
}
.rag-arrow {
    font-size: 0.4rem;
    color: var(--text-muted);
    line-height: 0.5;
}

.mockup-booking .booking-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    width: 100%;
    margin-bottom: 1rem;
}
.mockup-booking .booking-card {
    height: 30px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
}
.mockup-booking .booking-action {
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: 0.6rem;
    padding: 0.3rem 1rem;
    align-self: center;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.skill-category h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.skill-category p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* DSA Section */
.dsa-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    padding: 2rem;
    border-radius: 4px;
}

.dsa-stats {
    margin-bottom: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 500;
    line-height: 1;
    margin-bottom: 0.2rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.dsa-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.topic-tag {
    font-size: 0.8rem;
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    color: var(--text-secondary);
}

.dsa-links {
    display: flex;
    gap: 1.5rem;
}

/* Education Section */
.edu-school {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.edu-degree {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.edu-details {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Achievements Section */
.ach-title {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.ach-event {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.ach-details {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.ach-desc strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* Resume Section */
.resume-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

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

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

.contact-heading {
    font-size: clamp(2rem, 3vw, 3rem);
    margin-bottom: 2rem;
}

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

.contact-email {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--border-strong);
}

.contact-email:hover {
    text-decoration-color: var(--text-primary);
}

.contact-socials {
    display: flex;
    gap: 1.5rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-note {
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Delayed fade up for initial load items */
.hero.fade-up {
    transition-delay: 0.1s;
}