@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Outfit:wght@300;400;600;800&display=swap');

:root {
    --bg-color: #030712;
    --card-bg: rgba(15, 23, 42, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-color: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.2);
    --secondary-color: #0ea5e9;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --glass-blur: 12px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* --- Background Particles --- */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
}


h1, h2, h3, .logo {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* --- Layout --- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 100px 0;
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Navigation --- */

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

/* --- Hero Section --- */

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 0;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    top: 20%;
    right: 10%;
    z-index: -1;
    filter: blur(60px);
}

.hero-content {
    flex: 1;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    overflow: hidden;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 30px var(--primary-glow);
    animation: morphing 8s infinite ease-in-out;
}

@keyframes morphing {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    25% { border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%; }
    50% { border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%; }
    75% { border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero h1 span {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px var(--primary-glow);
    animation: neon-pulse 1.5s infinite alternate;
}

@keyframes neon-pulse {
    from { filter: drop-shadow(0 0 2px var(--primary-color)); }
    to { filter: drop-shadow(0 0 8px var(--primary-color)); }
}


.badge {
    background: var(--primary-glow);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.5rem;
    border: 1px solid var(--primary-color);
}

.description {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

/* --- Buttons --- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

/* --- Cards --- */

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition);
}

.glass-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

/* --- Skills --- */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    font-size: 0.85rem;
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary-glow);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* --- Projects --- */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

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

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-card p {
    color: var(--text-dim);
    flex-grow: 1;
}

.project-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

/* --- Footer --- */

footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
}

.social-links a {
    color: var(--text-dim);
    font-size: 1.5rem;
    transition: var(--transition);
}

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

/* --- Chatbot "Patel" UI --- */

#chatbot-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 10px 30px var(--primary-glow);
    z-index: 1001;
    transition: var(--transition);
}

#chatbot-toggle:hover {
    transform: scale(1.1) rotate(5deg);
}

#chatbot-container {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    height: 500px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 1000;
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

#chatbot-container.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.chat-header {
    padding: 1.25rem;
    background: rgba(16, 185, 129, 0.1);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.chat-header img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    border: 1px solid var(--primary-color);
}

.chat-header h4 {
    flex-grow: 1;
    font-size: 1rem;
}

.chat-close {
    cursor: pointer;
    color: var(--text-dim);
}

#chat-messages {
    flex-grow: 1;
    padding: 1.25rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 15px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.message.bot {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 2px;
}

.message.user {
    align-self: flex-end;
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 2px;
}

.chat-input-area {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}

#chat-input {
    flex-grow: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1rem;
    border-radius: 10px;
    color: white;
    outline: none;
}

#chat-input:focus {
    border-color: var(--primary-color);
}

#chat-send {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 1rem;
    border-radius: 10px;
    cursor: pointer;
}

.typing {
    font-style: italic;
    color: var(--text-dim);
    font-size: 0.8rem;
}


.copyright {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* --- Mobile Responsive --- */

@media (max-width: 968px) {
    .container { padding: 0 1.5rem; }
    .hero {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 120px;
        height: auto;
    }
    .hero h1 { font-size: 3rem; }
    .hero-visual { margin-bottom: 3rem; }
    .hero-image-wrapper { width: 280px; height: 280px; }
    .description { margin: 0 auto 2.5rem; }
    .nav-links { display: none; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2.5rem; }
    .btn { width: 100%; margin: 0.5rem 0; }
    .btn-secondary { margin-left: 0; }
}