/* --- Premium Design System --- */
:root {
    --bg-dark: #0b0f19;         
    --text-main: #e2e8f0;       
    --text-muted: #94a3b8;      
    --accent-green: #10b981;    
    --accent-glow: rgba(16, 185, 129, 0.4); 

    --glass-bg: rgba(17, 25, 40, 0.65);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* --- Base Reset & Typography --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Base static glow */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, var(--accent-glow) 0%, transparent 20%);
    opacity: 0.15;
    z-index: -2;
    pointer-events: none;
}

/* --- Interactive Particle Canvas --- */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1; /* Sits right behind the glass cards */
    pointer-events: none; /* Allows you to click things underneath it */
}

/* --- Layout Utilities --- */
section {
    padding: 100px 5%;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent-green);
    border-radius: 2px;
}

/* --- Glassmorphism Utilities --- */
.glass-nav {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: transparent; 
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.glass-nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 5%;
    box-shadow: var(--glass-shadow);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(16, 185, 129, 0.4);
}

/* --- Navigation --- */
nav {
    display: flex;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -1px;
}

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

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

/* --- Hero Section --- */
#hero {
    height: 100vh;
    display: flex;
    align-items: flex-start; 
    justify-content: center;
    text-align: left;
}

.hero-content {
    max-width: 850px;
    animation: fadeInUp 1s ease-out forwards;
}

.greeting {
    color: var(--accent-green);
    font-family: monospace;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.hero-title {
    font-size: clamp(2.5rem, 6.5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.highlight {
    color: transparent;
    -webkit-text-stroke: 1px var(--accent-green);
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

/* --- Buttons --- */
.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap; /* Helps with mobile display */
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
    cursor: pointer;
    text-align: center;
}

.btn-small {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
    margin-top: auto;
    display: inline-block;
    width: fit-content;
}

.primary-btn {
    background: var(--accent-green);
    color: var(--bg-dark);
    border: 1px solid var(--accent-green);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.primary-btn:hover {
    background: transparent;
    color: var(--accent-green);
    transform: translateY(-2px);
}

.secondary-btn {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.secondary-btn:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-2px);
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: stretch;
}

.about-image-wrapper {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(16, 185, 129, 0.2);
}

/* --- Skills Modules --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card h3 {
    color: var(--text-main);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.skills-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.meta-card h4 {
    color: var(--accent-green);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tags-container span {
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    color: var(--text-main);
}

/* --- Experience Grids --- */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.exp-header h3 {
    color: var(--text-main);
    font-size: 1.3rem;
    margin: 0;
}

.exp-date {
    font-family: monospace;
    color: var(--accent-green);
    font-size: 0.9rem;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    white-space: nowrap;
}

.exp-role {
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.experience-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Projects Grid --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

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

.project-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-content h3 {
    font-size: 1.5rem;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    flex-grow: 1;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.tech-stack span {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.1);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

/* --- Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2.5rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.social-item {
    color: var(--text-main);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.social-label {
    color: var(--accent-green);
    font-weight: 600;
    margin-right: 10px;
    min-width: 90px;
}

.social-item:hover {
    color: var(--accent-green);
    transform: translateX(5px);
}

form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    gap: 1.5rem;
}

input, textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-main);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    background: rgba(255, 255, 255, 0.05);
}

/* --- Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Media Queries --- */
@media (max-width: 900px) {
    .about-grid, .contact-grid, .experience-grid, .skills-meta-grid {
        grid-template-columns: 1fr;
    }
    .about-image-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .input-group { flex-direction: column; }
    .hero-buttons { flex-direction: column; }
    .nav-links { display: none; }
    .exp-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}