/* CSS Variables for SBM Tech Aesthetic */
:root {
    --bg-dark: #1e1537;
    --bg-darker: #241940;
    --bg-light: #2d1b69;
    --bg-gradient: linear-gradient(135deg, #2d1b69 0%, #241940 50%, #1e1537 100%);
    --text-primary: #FFFFFF;
    --text-secondary: #cbd5e1;
    --accent-neon: #06b6d4;
    --accent-blue: #2563eb;
    --accent-purple: #9333ea;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(6, 182, 212, 0.3);
    --font-main: 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-gradient);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(to right, var(--accent-neon), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient {
    background: linear-gradient(to right, #ffffff, #cffafe, #bfdbfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 800;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    font-size: 1.1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(to right, var(--accent-neon), var(--accent-blue));
    color: white;
}

.btn-primary:hover {
    transform: scale(1.05);
    background: linear-gradient(to right, #0891b2, #1d4ed8);
}

.neon-btn {
    background: linear-gradient(to right, var(--accent-purple), #4f46e5);
    color: white;
}

.neon-btn:hover {
    transform: scale(1.05);
    background: linear-gradient(to right, #7e22ce, #4338ca);
}

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

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--accent-neon);
    transform: scale(1.05);
}

/* Glassmorphism utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-8px);
    border-color: var(--glass-border-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 17, 32, 0.8);
    backdrop-filter: blur(15px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.footer-logo {
    height: 60px;
    width: auto;
    object-fit: contain;
    margin-bottom: 10px;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
}

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

.nav-links .nav-btn {
    color: white;
}

.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(0, 51, 255, 0.15) 0%, rgba(11, 17, 32, 0) 70%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.icon-wrapper {
    color: var(--accent-neon);
    margin-bottom: 1rem;
}

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

.service-card p {
    color: var(--text-secondary);
}

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

.feature-item h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    border-left: 3px solid var(--accent-blue);
    padding-left: 10px;
}

.feature-item p {
    color: var(--text-secondary);
    padding-left: 13px;
}

/* About Us */
.about-container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about-image, .about-content {
    flex: 1;
}

.profile-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
}

.profile-img-wrapper {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    padding: 6px; /* Transparent gap */
    border: 1px solid rgba(255, 255, 255, 0.15); /* Very thin light border */
    background: transparent;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: none;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-secondary);
    border: 4px solid #0d1117;
}

.profile-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #ffffff;
}

.profile-role {
    font-size: 1.1rem;
    color: #818cf8; /* Light indigo/purple hue for the role */
    font-weight: 500;
}

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

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-card {
    padding: 0;
    overflow: hidden;
}

.portfolio-img {
    height: 200px;
    width: 100%;
}

.portfolio-info {
    padding: 2rem;
}

.portfolio-link {
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.portfolio-info h3 {
    margin-bottom: 1rem;
}

.portfolio-info p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

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

.tech-tags span {
    font-size: 0.8rem;
    padding: 4px 10px;
    background: rgba(0, 240, 255, 0.1);
    color: var(--accent-neon);
    border-radius: 20px;
}

/* Testimonials */
.testimonial-carousel {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    padding-bottom: 2rem;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-blue) var(--bg-darker);
}

.testimonial-card {
    min-width: 300px;
    flex: 1;
}

.quote {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.author {
    font-weight: 600;
    color: var(--accent-neon);
}

/* Contact Section */
.contact-container {
    display: flex;
    gap: 4rem;
}

.contact-info {
    flex: 1;
}

.contact-details {
    margin-top: 2rem;
    background: var(--bg-darker);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.contact-details p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.contact-details strong {
    color: var(--text-primary);
}

.contact-form-wrapper {
    flex: 1;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-neon);
    background: rgba(255, 255, 255, 0.1);
}

.form-group select option {
    background-color: var(--bg-darker);
    color: var(--text-primary);
}

.submit-btn {
    width: 100%;
}

.form-message {
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    padding-top: 4rem;
    border-top: 1px solid var(--glass-border);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-links h4, .footer-legal h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links a, .footer-legal a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: var(--transition-smooth);
}

.footer-links a:hover, .footer-legal a:hover {
    color: var(--accent-neon);
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem 0;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-darker);
        padding: 2rem 0;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-container, .contact-container {
        flex-direction: column;
    }
    
    .hero-cta-group {
        flex-direction: column;
    }
}

/* AI Chatbot Styles */
.chatbot-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    font-weight: 500;
}

.chatbot-toggle:hover {
    color: var(--text-primary);
}

.chatbot-window {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 350px;
    z-index: 9999;
    display: none;
    flex-direction: column;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    padding: 0;
}

.chatbot-window.active {
    display: flex;
}

.chatbot-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-blue));
    color: white;
}

.chatbot-header h4 {
    margin: 0;
    font-size: 1.1rem;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
}

.chatbot-messages {
    height: 350px;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.2);
    scrollbar-width: thin;
    scrollbar-color: var(--accent-blue) rgba(0,0,0,0.1);
}

.message {
    padding: 0.8rem 1rem;
    border-radius: 12px;
    max-width: 85%;
    font-size: 0.95rem;
    word-wrap: break-word;
    line-height: 1.4;
}

.ai-message {
    background: rgba(6, 182, 212, 0.15);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 2px;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.user-message {
    background: linear-gradient(to right, var(--accent-purple), var(--accent-blue));
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

.chatbot-input {
    display: flex;
    padding: 1rem;
    gap: 0.8rem;
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
}

.chatbot-input textarea {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.8rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    resize: none;
    outline: none;
    transition: var(--transition-smooth);
}

.chatbot-input textarea:focus {
    border-color: var(--accent-neon);
    background: rgba(255, 255, 255, 0.1);
}

.chatbot-input button {
    padding: 0 1.5rem;
    border-radius: 8px;
}