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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #1f2937;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Merriweather', Georgia, serif;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-in;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: #2563eb;
}

.form-input.error {
    border-color: #ef4444;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #374151;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.success-message {
    color: #10b981;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.btn-primary {
    background-color: #2563eb;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: background-color 0.2s;
    display: inline-block;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-primary:active {
    background-color: #1e40af;
}

.btn-secondary {
    background-color: #f3f4f6;
    color: #374151;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: background-color 0.2s;
    display: inline-block;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
}

.overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.overlay.active {
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #2563eb;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}