/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #2d3436;
    --color-secondary: #636e72;
    --color-accent: #6c5ce7;
    --color-background: #f8f9fa;
    --color-card: #ffffff;
    --color-text: #2d3436;
    --color-text-light: #636e72;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: 0.3s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-accent), #a29bfe);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

/* Projects Section */
.projects {
    margin-bottom: 3rem;
}

.projects h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Card Styles */
.card {
    background: var(--color-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card-image {
    height: 160px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #dfe6e9, #b2bec3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-secondary);
    font-weight: 500;
}

.card-content {
    padding: 1.25rem;
}

.card-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.card-content p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.card-link {
    display: inline-block;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.card-link:hover {
    color: #5b4cdb;
}

/* Disclaimer Section */
.disclaimer {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

.disclaimer h3 {
    font-size: 1rem;
    color: #856404;
    margin-bottom: 0.5rem;
}

.disclaimer p {
    font-size: 0.9rem;
    color: #856404;
    line-height: 1.5;
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 3rem 1.5rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .container {
        padding: 1.5rem;
    }

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

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-content p {
        font-size: 1rem;
    }
}