/* 
  Aesthetic Blue Theme 
*/
:root {
    --navy: #0F172A; /* Slate 900 */
    --navy-light: #1E293B; /* Slate 800 */
    --soft-blue: #E0F2FE; /* Sky 100 */
    --cyan: #06B6D4; /* Cyan 500 */
    --cyan-hover: #0891B2; /* Cyan 600 */
    --white: #F8FAFC; /* Slate 50 */
    --text-main: #334155; /* Slate 700 */
    --text-light: #64748B; /* Slate 500 */
    --bg-light: #F1F5F9; /* Slate 100 */
    --border-color: #E2E8F0; /* Slate 200 */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-blue: 0 10px 15px -3px rgba(6, 182, 212, 0.3);
    
    --transition: all 0.3s ease;
}

/* Reset & General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    color: var(--navy);
    margin-bottom: 60px;
    text-align: center;
    position: relative;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--cyan);
    border-radius: 2px;
}

.bg-light {
    background-color: var(--bg-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--cyan);
    color: #fff;
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    background-color: var(--cyan-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 20px -3px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--navy);
    border: 2px solid var(--navy);
}

.btn-secondary:hover {
    background-color: var(--navy);
    color: #fff;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
}

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

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-main);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--cyan);
    transition: var(--transition);
}

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

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    color: var(--navy);
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--white) 0%, var(--soft-blue) 100%);
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h3 {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--navy);
    margin-bottom: 24px;
    line-height: 1.2;
}

.highlight {
    color: var(--cyan);
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background-color: var(--cyan);
    display: flex;
    justify-content: center;
    align-items: flex-end;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 8px solid white;
}

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

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-light);
}

.skills {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--navy);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background-color: var(--cyan);
    border-radius: 4px;
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.portfolio-card {
    background-color: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: 24px;
}

.card-content h3 {
    color: var(--navy);
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.card-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tag {
    background-color: var(--soft-blue);
    color: var(--cyan-hover);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-link {
    color: var(--cyan);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.card-link i {
    transition: transform 0.3s ease;
}

.card-link:hover i {
    transform: translateX(4px);
}

/* Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.blog-card {
    background-color: #fff;
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.blog-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--soft-blue);
}

.blog-meta {
    display: flex;
    gap: 16px;
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.blog-card h3 {
    font-size: 1.25rem;
    color: var(--navy);
    margin-bottom: 12px;
    line-height: 1.4;
}

.blog-card h3 a {
    transition: var(--transition);
}

.blog-card h3 a:hover {
    color: var(--cyan);
}

.blog-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.read-more {
    color: var(--cyan);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    background-color: #fff;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    color: var(--navy);
    font-weight: 500;
}

.contact-item i {
    color: var(--cyan);
    font-size: 1.25rem;
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--soft-blue);
    color: var(--cyan);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--cyan);
    color: #fff;
    transform: translateY(-3px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cyan);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

/* Footer */
footer {
    background-color: var(--navy);
    color: #fff;
    text-align: center;
    padding: 24px 0;
}

footer p {
    color: var(--text-light);
}

/* AI Chatbot Widget Styles */
.chatbot-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.chatbot-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--cyan);
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    justify-content: center;
    align-items: center;
}

.chatbot-btn:hover {
    transform: scale(1.1);
    background-color: var(--cyan-hover);
}

.chatbot-window {
    width: 350px;
    height: 500px;
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin-bottom: 16px;
    transform: scale(0);
    transform-origin: bottom right;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    border: 1px solid var(--border-color);
}

.chatbot-window.active {
    transform: scale(1);
    opacity: 1;
}

.chatbot-header {
    background-color: var(--navy);
    color: white;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    cursor: pointer;
    transition: color 0.2s;
}

.close-btn:hover {
    color: white;
}

.chatbot-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background-color: var(--bg-light);
}

.message {
    max-width: 85%;
    display: flex;
}

.message-content {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.bot-message {
    align-self: flex-start;
}

.bot-message .message-content {
    background-color: #fff;
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.user-message {
    align-self: flex-end;
}

.user-message .message-content {
    background-color: var(--cyan);
    color: white;
    border-bottom-right-radius: 4px;
}

.chatbot-input {
    padding: 16px;
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
}

.chatbot-input input {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 10px 16px;
    font-family: inherit;
    font-size: 0.9rem;
}

.chatbot-input input:focus {
    outline: none;
    border-color: var(--cyan);
}

.chatbot-input button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--cyan);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s;
}

.chatbot-input button:hover {
    background-color: var(--cyan-hover);
}

.chatbot-input button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    width: fit-content;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background-color: var(--text-light);
    border-radius: 50%;
    animation: typing 1s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.error-message {
    color: #ef4444 !important;
    border-color: #fca5a5 !important;
    background-color: #fef2f2 !important;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content p {
        margin: 0 auto 32px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-container {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 80px;
        left: -100%;
        width: 100%;
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        padding: 40px 0;
        gap: 24px;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .image-wrapper {
        width: 300px;
        height: 300px;
    }

    .chatbot-window {
        width: calc(100vw - 40px);
        bottom: 80px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .image-wrapper {
        width: 250px;
        height: 250px;
    }
}