/* Heartz - Modern Medical UI Stylesheet */
/* Covlor Logo Integration - Add to style.css */

/* Logo in navbar/header */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.covlor-logo {
    height: 32px;
    width: auto;
    display: inline-block;
}

.covlor-logo-mobile {
    display: none;
}

/* Sidebar logo (dashboard) */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand .covlor-logo {
    height: 28px;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #E63946;
}

.sidebar-brand .brand-text {
    color: white;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .covlor-logo {
        display: none;
    }
    
    .covlor-logo-mobile {
        display: inline-block;
        height: 28px;
        width: auto;
    }
    
    .nav-brand {
        justify-content: center;
        width: 100%;
    }
    
    .sidebar-brand .covlor-logo-mobile {
        height: 24px;
    }
}

/* Ensure logos don't break layout */
.covlor-logo,
.covlor-logo-mobile {
    object-fit: contain;
    vertical-align: middle;
}




:root {
    --primary-heart: #E63946;
    --primary-dark: #A4161A;
    --primary-light: #FFD6D9;
    --accent-life: #06D6A0;
    --accent-warning: #F77F00;
    --accent-danger: #D62828;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-dark: #1D3557;
    --text-primary: #212529;
    --text-secondary: #6C757D;
    --border-light: #E9ECEF;
    --status-low: #06D6A0;
    --status-moderate: #F77F00;
    --status-high: #E63946;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background: var(--bg-primary);
}

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

/* Navigation */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-heart);
}

.heart-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

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

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

/* Buttons */
.btn-primary, .btn-secondary, .btn-outline, .btn-large {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #E8F4F8 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-heart) 0%, var(--accent-life) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-heart);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.ecg-animation {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

#heroECG {
    width: 100%;
    height: auto;
}

/* Features Section */
.features {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--bg-dark);
}

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

/* How It Works */
.how-it-works {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    flex: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-heart);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-heart);
    margin: 0 1rem;
}

/* Pricing Section */
.pricing {
    padding: 6rem 0;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    position: relative;
}

.pricing-card.featured {
    border: 3px solid var(--primary-heart);
    transform: scale(1.05);
}

.badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--primary-heart);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-heart);
    margin-bottom: 2rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-light);
}

.pricing-card .btn-primary,
.pricing-card .btn-outline {
    width: 100%;
    text-align: center;
}

/* Disclaimer Section */
.disclaimer {
    background: var(--primary-light);
    padding: 3rem 0;
}

.disclaimer h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.disclaimer p {
    color: var(--text-primary);
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand .brand-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.tagline {
    color: rgba(255,255,255,0.7);
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: var(--accent-life);
}

.footer-column ul {
    list-style: none;
}

.footer-column a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255,255,255,0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Form Styles */
.form-container {
    max-width: 500px;
    margin: 4rem auto;
    padding: 3rem;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-danger {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.alert-success {
    background: #D1F2EB;
    color: #0F6848;
}