/* HealiosMed Medical Education Platform - Static HTML/CSS Version */

/* CSS Variables (Design System) */
:root {
    --background: hsl(0, 0%, 98%);
    --foreground: hsl(240, 10%, 15%);
    --card: hsl(0, 0%, 100%);
    --card-foreground: hsl(240, 10%, 15%);

    /* Updated to match logo violet */
    --primary: #853476; /* main violet from logo */
    --primary-foreground: hsl(0, 0%, 100%);
    --primary-glow: #a34c92; /* lighter glowing violet */

    --secondary: hsl(300, 20%, 95%);
    --secondary-foreground: #853476;

    --muted: hsl(300, 20%, 96%);
    --muted-foreground: hsl(300, 15%, 45%);

    --accent: #d9a6c9; /* soft pastel accent violet */
    --accent-foreground: #853476;

    --border: hsl(300, 15%, 85%);
    --input: hsl(300, 15%, 85%);
    
    /* Custom gradients */
    --gradient-primary: linear-gradient(135deg, hsl(270, 70%, 65%), hsl(290, 80%, 70%));
    --gradient-hero: linear-gradient(135deg, hsl(270, 70%, 65%) 0%, hsl(290, 80%, 70%) 50%, hsl(310, 70%, 75%) 100%);
    --gradient-card: linear-gradient(145deg, hsl(0, 0%, 100%) 0%, hsl(240, 5%, 98%) 100%);
    
     --shadow-soft: 0 4px 20px -2px #85347620; /* subtle violet tint */
    --shadow-card: 0 10px 25px -5px #85347615; /* soft, muted violet */
    --shadow-glow: 0 0 40px #a34c924d; /* glowing magenta-violet */
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --container-max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
    margin-bottom: var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.btn-large {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.btn-primary {
    background: var(--primary-foreground);
    color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background: hsl(0, 0%, 95%);
}

.btn-outline {
    background: hsl(270, 60%, 60%, 0.1);
    border-color: hsl(270, 60%, 60%, 0.2);
    color: var(--primary);
}

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

.btn-outline-light {
    border-color: hsl(0, 0%, 100%, 0.3);
    color: var(--primary-foreground);
}

.btn-outline-light:hover {
    background: hsl(0, 0%, 100%, 0.1);
}

/* Utility Classes */
.text-primary {
    color: var(--primary);
}

.highlight {
    color: hsl(45, 100%, 70%);
}

/* Header */
.header {
    border-bottom: 1px solid hsl(240, 6%, 90%, 0.5);
    background: hsl(0, 0%, 100%, 0.5);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    background: var(--gradient-primary); /* Optional */
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-icon img {
    width: 150%;
    height: 150%;
    object-fit: contain;
}
.stethoscope-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary-foreground);
}

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: none;
	font-size: 18px;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: hsl(240, 10%, 15%, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

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

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensures video covers the entire section */
    z-index: -1; /* Places video behind content */
}

.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.3;
    background-image: radial-gradient(circle at center, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-text {
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-foreground);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
	text-align: center;
}

.hero-subtitle {
    margin-bottom: var(--spacing-lg);
text-align: center;
}

.hero-tagline {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-foreground);
    margin-bottom: var(--spacing-xs);
	align: center;
}

.hero-description {
    color: hsl(0, 0%, 100%, 0.8);
	align-items: center;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    justify-content: center; /* Center buttons horizontally */
}

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

.hero-img {
    width: 100%;
    max-width: 32rem;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: float 6s ease-in-out infinite;
}

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

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
     
    .hero-buttons {
        flex-direction: row;
    }
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: var(--font-size-6xl);
    }
}

/* Stats Section */
.stats {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.stats-grid {
    display: grid;
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-icon {
    width: 6rem;
    height: 6rem;
    background: hsl(270, 60%, 60%, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.stat-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--primary);
}

.stat-number {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
	font-size: var(--font-size-3xl);
    color: var(--muted-foreground);
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Courses Section */
.courses {
    padding: var(--spacing-2xl) 0;
    background: hsl(240, 5%, 96%, 0.3);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-6xl);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-4xl);
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-xs);
}

.section-description {
	font-size: var(--font-size-3xl);
    color: var(--muted-foreground);
}

.courses-grid {
    display: grid;
    gap: var(--spacing-lg);
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.course-card1 {
    position: relative;
    background: var(--gradient-card);
    box-shadow: var(--shadow-card);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    overflow: hidden;
background-image: url('src/assets/anatomy.png'); /* Set anatomy.png as background */
	aspect-ratio: 3 / 4; /* 4:3 portrait aspect ratio (width:height) */
    	max-width: 300px; /* Optional: limit max width for consistency */
}
.course-card2 {
    position: relative;
    background: var(--gradient-card);
    box-shadow: var(--shadow-card);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    overflow: hidden;
background-image: url('src/assets/pharmacology.png'); /* Set anatomy.png as background */
	aspect-ratio: 3 / 4; /* 4:3 portrait aspect ratio (width:height) */
    	max-width: 300px; /* Optional: limit max width for consistency */
}
.course-card3 {
    position: relative;
    background: var(--gradient-card);
    box-shadow: var(--shadow-card);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    overflow: hidden;
background-image: url('src/assets/research.png'); /* Set anatomy.png as background */
	aspect-ratio: 3 / 4; /* 4:3 portrait aspect ratio (width:height) */
    	max-width: 300px; /* Optional: limit max width for consistency */
}
.course-card {
    position: relative;
    background: var(--gradient-card);
    box-shadow: var(--shadow-card);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    overflow: hidden;
	aspect-ratio: 3 / 4; /* 4:3 portrait aspect ratio (width:height) */
    	max-width: 300px; /* Optional: limit max width for consistency */
}

.course-card1:hover {
    box-shadow: var(--shadow-glow);
}

.course-card2:hover {
    box-shadow: var(--shadow-glow);
}

.course-card3:hover {
    box-shadow: var(--shadow-glow);
}

.course-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient-primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: var(--transition-smooth);
}

.course-card1:hover .course-icon {
    transform: scale(1.1);
}
.course-card2:hover .course-icon {
    transform: scale(1.1);
}
.course-card3:hover .course-icon {
    transform: scale(1.1);
}

.course-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--primary-foreground);
}

.course-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.course-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: hsl(25, 95%, 53%);
    color: white;
    padding: var(--spacing-xs);
    border-radius: 0.375rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
}

.course-price {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary);
}

.course-arrow {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--muted-foreground);
    transition: var(--transition-smooth);
}

.course-card:hover .course-arrow {
    color: var(--primary);
}

@media (min-width: 768px) {
    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

/* Why Choose Section */
.why-choose {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.features-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.feature-item {
    text-align: center;
}

.feature-icon {
    width: 6rem;
    height: 6rem;
    background: hsl(270, 60%, 60%, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.feature-icon svg {
    width: 4rem;
    height: 4rem;
    color: var(--primary);
}

.feature-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--muted-foreground);
font-size: var(--font-size-xl);
    font-weight: 300;
}

.features-description {
    text-align: center;
    color: var(--muted-foreground);
    margin-bottom: var(--spacing-xl);
font-size: var(--font-size-xl);

}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-2xl) 0;
    background: hsl(240, 5%, 96%, 0.3);
}

.testimonials-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--gradient-card);
    box-shadow: var(--shadow-card);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-glow);
}

.testimonial-featured {
    background: var(--gradient-primary);
    color: var(--primary-foreground);
    box-shadow: var(--shadow-glow);
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.testimonial-avatar {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    margin-right: var(--spacing-sm);
    object-fit: cover;
}

.author-name {
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.author-handle {
    font-size: var(--font-size-sm);
    color: var(--muted-foreground);
    margin: 0;
}

.testimonial-featured .author-handle {
    color: hsl(0, 0%, 100%, 0.8);
}

.testimonial-rating {
    margin-bottom: var(--spacing-sm);
}

.star {
    color: hsl(45, 100%, 60%);
    font-size: 2rem;
}

.testimonial-featured .star {
    color: hsl(45, 100%, 75%);
}

.testimonial-text {
    color: var(--muted-foreground);
    margin: 0;
}

.testimonial-featured .testimonial-text {
    color: hsl(0, 0%, 100%, 0.9);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* CTA Section */
.cta {
    position: relative;
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-hero);
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    opacity: 0.3;
    background-image: radial-gradient(circle at center, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 60px 60px;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-foreground);
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: hsl(0, 0%, 100%, 0.8);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-4xl);
    }
    
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* Footer */
.footer {
    background: var(--card);
    border-top: 1px solid var(--border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo-text {
    font-size: var(--font-size-xl);
}

.footer-description {
    color: var(--muted-foreground);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    display: block;
    color: var(--muted-foreground);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: var(--transition-smooth);
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
    color: var(--muted-foreground);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Responsive Design */
@media (max-width: 640px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .btn-large {
        width: 100%;
    }
}