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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --light: #f8fafc;
    --dark: #1e293b;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: #f9fafb;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-logo {
    margin-bottom: 40px;
}

.loading-logo i {
    font-size: 4rem;
    margin-bottom: 20px;
}

.loading-logo h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

.progress-bar {
    width: 300px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    margin: 20px auto;
    overflow: hidden;
}

.progress-fill {
    width: 0%;
    height: 100%;
    background: white;
    border-radius: 4px;
    animation: loading 2s ease-in-out forwards;
}

@keyframes loading {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Navigation */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--dark);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    color: var(--primary);
    font-size: 2rem;
    margin-right: 10px;
}

.ai-text {
    color: var(--primary);
    font-weight: 800;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.emergency-btn {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.emergency-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(239, 68, 68, 0.3);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, #f0f7ff 0%, #f8f0ff 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    margin-bottom: 20px;
    font-weight: 500;
}

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

.highlight {
    color: var(--primary);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(37, 99, 235, 0.2);
    z-index: -1;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin: 30px 0;
}

.stat h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat p {
    color: var(--gray);
    font-size: 0.9rem;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.btn {
    padding: 15px 30px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

/* AI Dashboard Preview */
.ai-dashboard-preview {
    background: white;
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-light);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.dashboard-header h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark);
}

.live-badge {
    background: var(--danger);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.dashboard-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.metric-card {
    background: var(--light);
    padding: 20px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 15px;
}

.metric-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.metric-icon.heart {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.metric-icon.temp {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.metric-info h5 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.metric-info p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.trend {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

.trend.up {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
}

.trend.stable {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

.ai-analysis {
    background: rgba(37, 99, 235, 0.05);
    padding: 15px;
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

.ai-analysis h6 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--dark);
}

/* AI Services */
.ai-services {
    padding: 80px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.section-subtitle {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.service-icon.ai-diagnosis {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.service-icon.telemedicine {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
}

.service-icon.monitoring {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.service-icon.pharmacy {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

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

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.service-link:hover {
    gap: 10px;
}

/* Symptom Checker */
.symptom-checker {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.checker-container {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.checker-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.checker-header h2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.checker-body {
    padding: 30px;
}

.symptom-input-area textarea {
    width: 100%;
    height: 150px;
    padding: 20px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    resize: vertical;
    transition: var(--transition);
}

.symptom-input-area textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.symptom-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.tag {
    background: var(--light);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary);
    color: white;
}

.checker-actions {
    display: flex;
    gap: 15px;
    margin: 25px 0;
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.analysis-result {
    background: var(--light);
    border-radius: var(--radius);
    padding: 30px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-placeholder {
    text-align: center;
    color: var(--gray);
}

.result-placeholder i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--gray-light);
}

/* Emergency Section */
.emergency-section {
    padding: 80px 0;
}

.emergency-card {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    border-radius: var(--radius);
    padding: 50px;
    color: white;
}

.emergency-header {
    text-align: center;
    margin-bottom: 40px;
}

.emergency-header h2 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.emergency-subtitle {
    opacity: 0.9;
}

.emergency-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 20px;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

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

.feature-info p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.emergency-action {
    text-align: center;
}

.emergency-call-btn {
    background: white;
    color: var(--danger);
    border: none;
    border-radius: var(--radius);
    padding: 25px 40px;
    display: inline-flex;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

.emergency-call-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.call-icon {
    width: 60px;
    height: 60px;
    background: var(--danger);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.call-info h3 {
    margin-bottom: 5px;
    font-size: 1.5rem;
}

.call-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

.emergency-hotline {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-light);
}

.footer-description {
    color: var(--gray-light);
    margin-bottom: 25px;
    line-height: 1.7;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    margin-bottom: 25px;
    font-size: 1.2rem;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: var(--gray-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-light);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--gray-light);
    text-decoration: none;
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: white;
}

.ai-powered {
    margin-top: 10px;
    font-style: italic;
}

/* AI Assistant */
.ai-assistant {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.ai-assistant-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
    transition: var(--transition);
    position: relative;
}

.ai-assistant-btn:hover {
    transform: scale(1.1);
}

.pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--primary);
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.ai-chat-window {
    position: absolute;
    bottom: 90px;
    right: 0;
    width: 380px;
    height: 600px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.ai-chat-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.ai-avatar {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
}

.ai-info {
    flex: 1;
}

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

.ai-status {
    font-size: 0.8rem;
    padding: 3px 10px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
}

.ai-status.online {
    background: var(--secondary);
}

.close-chat {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

.ai-chat-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ai-message {
    display: flex;
}

.message-content {
    background: var(--light);
    padding: 15px;
    border-radius: 15px 15px 15px 0;
    max-width: 80%;
}

.message-content p {
    margin-bottom: 5px;
}

.time {
    font-size: 0.7rem;
    color: var(--gray);
}

.ai-chat-input {
    padding: 20px;
    border-top: 1px solid var(--gray-light);
    display: flex;
    gap: 10px;
    align-items: center;
}

.ai-chat-input input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--gray-light);
    border-radius: 25px;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

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

.ai-chat-input button {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.ai-chat-input button:hover {
    background: var(--primary-dark);
}

.ai-quick-actions {
    padding: 15px 20px;
    border-top: 1px solid var(--gray-light);
    display: flex;
    gap: 10px;
}

.quick-btn {
    flex: 1;
    padding: 10px;
    background: var(--light);
    border: none;
    border-radius: var(--radius);
    font-size: 0.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: var(--transition);
}

.quick-btn:hover {
    background: var(--primary);
    color: white;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    overflow: hidden;
}

.modal-header {
    background: var(--primary);
    color: white;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-modal {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 30px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .ai-dashboard-preview {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .emergency-features {
        grid-template-columns: 1fr;
    }
    
    .ai-chat-window {
        width: 100%;
        height: 100%;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }
    
    .emergency-call-btn {
        flex-direction: column;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .checker-actions {
        flex-direction: column;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.p-20 {
    padding: 20px;
}