:root {
    --primary: #1db954;
    --primary-dark: #0e5e2b;
    --secondary: #063f1c;
    --dark: #121212;
    --darker: #0a0a0a;
    --light-text: #e6e6e6;
    --accent: #2ecc71;
    --danger: #e74c3c;
    --warning: #f39c12;
    --overlay: rgba(0, 0, 0, 0.6);
    --chat-bg: #0e5e2b;
    --chat-dark: #063f1c;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #1a2b4c;
    color: #e6e6e6;
    transition: all 0.3s ease;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* NAVBAR */
.navbar {
    background-color: var(--darker);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    font-size: 24px;
    color: var(--primary);
}

.logo i {
    color: var(--primary);
}

.logo span {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-links .active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* HERO SECTION */
.hero {
    padding-top: 100px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.05;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M50 0 L100 50 L50 100 L0 50 Z" fill="%231db954"/></svg>');
    background-size: 100px 100px;
    z-index: -1;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 50px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text h1 span {
    color: var(--primary);
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #b3b3b3;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 25px;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: black;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(29, 185, 84, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--light-text);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: black;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(29, 185, 84, 0.2);
}

.hero-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: perspective(1000px) rotateY(-10deg);
    transition: all 0.5s;
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(0);
}

.pulse-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    opacity: 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

/* FEATURES SECTION */
.features {
    padding: 100px 0;
    background-color: var(--darker);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    bottom: -10px;
    left: 20%;
}

.section-header p {
    color: #b3b3b3;
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--dark);
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s;
    border: 1px solid #2a2a2a;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(29, 185, 84, 0.1);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: #b3b3b3;
    line-height: 1.6;
}

/* PREDICTION SECTION */
.prediction {
    padding: 100px 0;
    background-color: var(--dark);
}

.prediction-container {
    display: flex;
    gap: 40px;
}

.prediction-form {
    flex: 1;
    background-color: var(--darker);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
}

.prediction-results {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.result-card {
    background-color: var(--darker);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    height: 100%;
    display: flex;
    flex-direction: column;
    opacity: 0.6;
    transition: all 0.3s;
}

.result-card.active {
    opacity: 1;
    border-color: var(--primary);
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border-radius: 5px;
    border: 1px solid #2a2a2a;
    background-color: var(--dark);
    color: var(--light-text);
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.2);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

.prediction-submit {
    text-align: center;
    margin-top: 30px;
}

.prediction-chart {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.risk-meter {
    width: 200px;
    height: 200px;
    position: relative;
    margin-bottom: 20px;
}

.risk-circle {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--warning) 50%, var(--danger) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.risk-inner {
    width: 80%;
    height: 80%;
    border-radius: 50%;
    background-color: var(--darker);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
}

.risk-percentage {
    position: relative;
    z-index: 2;
}

.risk-details {
    text-align: center;
}

.risk-level {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.risk-message {
    color: #b3b3b3;
    margin-bottom: 20px;
}

.download-report {
    margin-top: 20px;
}

/* CHATBOT SECTION */
.section {
    padding: 50px 20px;
    text-align: center;
}

.chat-info {
    background: var(--chat-dark);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    margin: 20px auto;
}

.chat-info h2 {
    color: var(--primary);
    font-size: 24px;
}

.chat-info p {
    font-size: 16px;
    color: #ccc;
    margin-top: 10px;
}
.chatbot-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    font-size: 18px;
    font-weight: bold;
    color: white;
    background: linear-gradient(90deg, var(--primary), var(--chat-bg));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    margin-top: 20px;
}

.chatbot-btn i {
    font-size: 20px;
}

.chatbot-btn:hover {
    background: var(--chat-bg);
    transform: scale(1.05);
}

.chatbot-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 400px;
    height: 80vh;
    background: var(--chat-dark);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    transition: transform 0.3s ease;
    z-index: 1001;
    border: 2px solid var(--primary);
}

.chatbot-header {
    background: var(--chat-bg);
    padding: 15px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    color: white;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
}

.chatbot-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay);
    backdrop-filter: blur(5px);
    display: none;
    z-index: 1000;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: transparent;
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
}

.close-btn:hover {
    color: var(--primary);
}

.info-card {
    background-color: var(--dark);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    height: 100%;
}

.info-card h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

.info-list {
    list-style-type: none;
}

.info-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.info-list li i {
    color: var(--primary);
    margin-top: 4px;
}

/* TESTIMONIALS SECTION */
.testimonials {
    padding: 100px 0;
    background-color: var(--dark);
}

.testimonial-slider {
    position: relative;
        overflow: hidden;
        max-width: 600px;
        margin: auto;
}

.testimonial-track {
    display: flex;
    flex-direction: column;
    gap: 30px;
    transition: transform 0.5s ease;
}

.testimonial-card {
    flex: 0 0 calc(33.333% - 20px);
    background-color: var(--darker);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    min-width: 300px;
    display: none;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    margin-bottom: 20px;
    position: relative;
}

.testimonial-content::before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    color: var(--primary);
    opacity: 0.2;
    top: -20px;
    left: -10px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    background-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: black;
    font-weight: bold;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info small {
    color: #b3b3b3;
}

.testimonial-slider {
    position: relative;
    overflow: hidden;
    max-width: 600px;
    margin: auto;
}

.testimonial-track {
    display: flex;
    flex-direction: column;
}

.testimonial-card {
    display: none; /* Hide all testimonials initially */
    text-align: center;
    padding: 20px;
    background: black;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.testimonial-dot {
    width: 10px;
    height: 10px;
    background: #bbb;
    margin: 0 5px;
    border-radius: 50%;
    cursor: pointer;
}

.testimonial-dot.active {
    background: #007bff;
}

/* FOOTER */
.footer {
    background-color: var(--darker);
    padding: 80px 0 30px;
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-about {
    flex: 2;
    max-width: 400px;
}

.footer-about p {
    color: #b3b3b3;
    margin-bottom: 20px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    transition: all 0.3s;
}

.social-link:hover {
    background-color: var(--primary);
    color: black;
    transform: translateY(-5px);
}

.footer-links {
    flex: 1;
}

.footer-links h3 {
    margin-bottom: 20px;
    color: var(--primary);
}

.footer-links ul {
    list-style-type: none;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #b3b3b3;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: var(--primary);
}

.footer-newsletter {
    flex: 2;
    max-width: 400px;
}

.footer-newsletter h3 {
    margin-bottom: 20px;
    color: var(--primary);
    text-align: center;
        background: black;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
        max-width: 400px;
        margin: auto;
}

.footer-newsletter p {
    color: #b3b3b3;
    margin-bottom: 20px;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
        justify-content: center;
        gap: 10px;
        margin-top: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border-radius: 5px;
    border: 1px solid #2a2a2a;
    background-color: var(--dark);
    color: var(--light-text);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.newsletter-form button {
    padding: 12px 15px;
    background-color: var(--primary);
    color: black;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.newsletter-form button:hover {
    background-color: var(--primary-dark);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid #2a2a2a;
    text-align: center;
    color: #b3b3b3;
}

/* RESPONSIVE DESIGN */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .prediction-container {
        flex-direction: column;
    }

    .chatbot-container {
        flex-direction: column;
    }

    .testimonial-card {
        flex: 0 0 calc(50% - 20px);
    }
}

@media (max-width: 768px) {
    .navbar-content {
        flex-direction: column;
        gap: 15px;
    }

    .nav-links {
        width: 100%;
        justify-content: space-between;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .testimonial-card {
        flex: 0 0 100%;
    }
}

/* ANIMATIONS */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.float {
    animation: float 5s ease-in-out infinite;
}

/* LOADER */
.loader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
}

.loader-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary);
    margin: 0 5px;
    animation: loader 1.5s infinite ease-in-out;
}

.loader-dot:nth-child(1) {
    animation-delay: 0s;
}

.loader-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes loader {
    0%, 100% { transform: scale(0.5); opacity: 0.3; }
    50% { transform: scale(1.2); opacity: 1; }
}

/* TOOLTIP */
.tooltip {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--darker);
    color: var(--light-text);
    text-align: center;
    border-radius: 6px;
    padding: 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid #2a2a2a;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

#clear-btn {
    background-color: #dc3545; 
    color: white; 
    border: none; 
    padding: 12px 24px; 
    font-size: 16px; 
    border-radius: 30px; 
    cursor: pointer;
    transition: all 0.3s ease-in-out; 
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(220, 53, 69, 0.4); 
}

#clear-btn:hover {
    background-color: #c82333; 
    box-shadow: 0 0 20px rgba(220, 53, 69, 0.8); 
    transform: scale(1.1); 
}

#clear-btn:active {
    background-color: #a71d2a; 
    box-shadow: 0 0 25px rgba(220, 53, 69, 1); 
    transform: scale(0.95); 
}