:root {
    --bg-color: #050510;
    /* Deep cool space background */
    --text-color: #ffffff;
    /* Crisp white */
    --text-muted: #8892b0;
    /* Cool slate text */
    --accent: #ff9800;
    /* Warm bright orange as the interactive accent! */
    --accent-dark: #e65100;
    /* Deep orange */
    --card-bg: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.1);

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
    scroll-behavior: smooth;
    cursor: none;
    /* Hide default cursor for custom styling on desktop */
}

/* Loading Screen */
/* Loading Screen */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-color);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s cubic-bezier(0.8, 0, 0.2, 1);
}

.tech-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.loader-bar {
    width: 150px;
    height: 2px;
    background: rgba(255, 152, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.loader-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -50px;
    width: 50px;
    height: 100%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    animation: loadingSwipe 1.2s ease-in-out infinite;
}

.loader-text {
    font-family: var(--font-heading);
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 4px;
    animation: pulseText 1.2s ease-in-out infinite;
}

@keyframes loadingSwipe {
    0% {
        left: -50px;
    }

    100% {
        left: 150px;
    }
}

@keyframes pulseText {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

.loader-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Custom Cursor */
.cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px rgba(255, 152, 0, 0.8);
    transition: width 0.2s, height 0.2s;
}

.cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 152, 0, 0.5);
    background: radial-gradient(circle, rgba(255, 152, 0, 0.15) 0%, rgba(255, 152, 0, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, background 0.3s, border 0.3s;
}

@media (max-width: 768px) {

    /* Restore typical layout for touch devices lacking cursor support */
    html {
        cursor: auto;
    }

    .cursor-dot,
    .cursor-glow {
        display: none;
    }
}

body {
    background-color: transparent;
    /* Changed to transparent for 3D canvas */
    color: var(--text-color);
    font-family: var(--font-body);
    overflow-x: hidden;
    line-height: 1.6;
}

#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 5%;
    border-bottom: 1px solid transparent;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #ffdda1;
}

.nav-links a {
    color: #ffdda1;
    text-decoration: none;
    margin-left: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: #ff9800;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 0 5% 3% 5%;
    overflow: hidden;
    background: transparent;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: left;
    will-change: transform, opacity;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.name-first,
.name-last {
    display: inline-block;
}

.name-last {
    padding-left: 3.5em;
    /* Offsets "PATIL" to align underneath the end of "ATHARVA" */
}

.escapable-letter {
    display: inline-block;
    transform-origin: center;
    position: relative;
    pointer-events: none;
    /* Let mouse move cleanly over them without triggering hover jitter */

    background: linear-gradient(135deg, #ff5e62 0%, #ff9966 50%, #ffc371 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    letter-spacing: 5px;
    color: #ffdda1;
    font-weight: 500;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    opacity: 0.6;
}

.scroll-indicator p {
    font-size: 0.7rem;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--text-color), transparent);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }

    50% {
        transform: scaleY(1);
        transform-origin: top;
    }

    51% {
        transform: scaleY(1);
        transform-origin: bottom;
    }

    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

/* Sections */
.content-wrapper {
    position: relative;
    z-index: 20;
    /* Cool moody gradient rising from the bottom to complement the warm interactive elements */
    background: linear-gradient(to top, rgba(138, 43, 226, 0.15), rgba(0, 0, 255, 0.1), rgba(0, 255, 255, 0.05), transparent 90%);
}

.section {
    padding: 8rem 5%;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 4rem;
    display: flex;
    align-items: baseline;
    gap: 1rem;
}

.section-title span:first-child {
    font-size: 1rem;
    font-weight: 400;
    color: var(--accent);
}

.accent-dot {
    color: var(--accent);
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.about-text .lead {
    font-size: 1.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.education-block {
    margin-top: 3rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border);
}

.education-block h3 {
    margin-bottom: 2rem;
    letter-spacing: 2px;
    font-size: 1rem;
    color: var(--accent);
}

.edu-item {
    margin-bottom: 2rem;
    position: relative;
}

.edu-item::before {
    content: '';
    position: absolute;
    left: -1.9rem;
    top: 0.4rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 2px solid var(--accent);
    transition: var(--transition);
    /* Added for smooth animation */
}

/* NEW: Glow effect when hovering over the education item */
.edu-item:hover::before {
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent);
}

.edu-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.edu-meta {
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.edu-score {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: border-color 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.skill-category h3,
.skill-category .tags {
    position: relative;
    z-index: 10;
    transform: translateZ(30px);
    /* Extrusion effect for text inside the card */
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tags span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.tags span:hover {
    background: rgba(255, 152, 0, 0.1);
    border-color: var(--accent);
    color: var(--text-color);
    transform: translateY(-2px);
}

/* Projects */
.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    transition: border-color 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.project-card::before,
.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Warm inner glow tracking mouse */
    background: radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 152, 0, 0.15), transparent 40%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 0;
}

.project-card:hover,
.skill-category:hover {
    border-color: rgba(255, 152, 0, 0.4);
    box-shadow: 0 20px 40px rgba(255, 152, 0, 0.15);
}

.project-card:hover::before,
.skill-category:hover::before {
    opacity: 1;
}

.project-content {
    position: relative;
    z-index: 10;
    transform: translateZ(40px);
    /* 3D Pop out effect on tilt */
}

.project-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-card p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

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

.project-tech span {
    font-size: 0.75rem;
    color: var(--accent);
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

/* Experience Timeline */
.experience-timeline-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

@media (max-width: 768px) {
    .experience-timeline-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.timeline-heading {
    font-family: var(--font-heading);
    color: var(--accent);
    margin-bottom: 2.5rem;
    font-size: 1.2rem;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 4px;
    height: 100%;
    width: 2px;
    background: var(--border);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}

.timeline-dot {
    position: absolute;
    top: 6px;
    left: -2.3rem;
    width: 12px;
    height: 12px;
    background: var(--bg-color);
    border: 2px solid var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(255, 152, 0, 0.4);
    transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent);
}

.timeline-content h4 {
    font-size: 1.2rem;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 152, 0, 0.15);
    /* Warm variant */
    color: var(--accent);
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.exp-meta {
    color: var(--accent-dark);
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.timeline-content p:not(.exp-meta) {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 6rem 5% 2rem;
    background: transparent;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

.footer-left h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-desc {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
    max-width: 450px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition);
}

.contact-card i {
    color: var(--accent);
    font-size: 1.5rem;
    background: var(--card-bg);
    padding: 0.8rem;
    border-radius: 50%;
    border: 1px solid var(--border);
}

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

.mt-4 {
    margin-top: 2rem;
}

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

.social-links a {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a i {
    color: var(--accent);
    font-size: 1.3rem;
}

.social-links a:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

/* Glass Form */
.glass-form {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2.5rem;
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-color);
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(255, 152, 0, 0.05);
    /* Warm focus */
    box-shadow: 0 0 10px rgba(255, 152, 0, 0.1);
}

.submit-btn {
    align-self: flex-start;
    padding: 1rem 2rem;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.submit-btn:hover {
    background: var(--text-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 152, 0, 0.3);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: -60px;
    right: 2rem;
    background: var(--accent);
    color: #000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 5px 15px rgba(255, 152, 0, 0.3);
}

.back-to-top.visible {
    bottom: 2rem;
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-5px);
    background: var(--text-color);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.9rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Animation Utils */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* -----------------------------------
   Resume Tooltip & LinkedIn Glow 
------------------------------------ */
.resume-tooltip {
    position: absolute;
    bottom: 160%;
    left: 50%;
    transform: translateX(-50%) translateY(15px) scale(0.9);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 152, 0, 0.5);
    color: var(--text-color);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: var(--font-heading);
    letter-spacing: 1px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 15px rgba(255, 152, 0, 0.1);
    z-index: 100;
}

/* The little triangle pointer pointing down */
.resume-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: rgba(255, 152, 0, 0.5) transparent transparent transparent;
}

/* Triggers the tooltip to appear */
.tooltip-active {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
}

/* 3-pulse glowing animation */
@keyframes linkedinGlowAnim {

    0%,
    100% {
        color: var(--text-color);
        text-shadow: none;
        transform: scale(1);
    }

    50% {
        color: var(--accent);
        text-shadow: 0 0 20px var(--accent);
        transform: scale(1.05);
    }
}

/* Triggers the glow */
.glow-active {
    animation: linkedinGlowAnim 1s ease-in-out 3;
    /* Pulses 3 times over 3 seconds */
}

.glow-active i {
    color: var(--text-color) !important;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

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

    .nav-links {
        display: none;
    }
}