@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Lora:wght@400;700&display=swap');

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

body {
    font-family: 'Lora', serif;
    background: linear-gradient(135deg, #e7e7e7 0%, #e7e7e7 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 800px;
}

.validation-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideIn 0.5s ease-out;
}

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

.logo-section {
    background: linear-gradient(135deg, #0D2A4F 0%, #1E5A2E 100%);
    color: white;
    padding: 50px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.logo-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(13, 42, 79, 0.9) 0%, rgba(30, 90, 46, 0.9) 100%);
    z-index: 0;
}

.logo-section > * {
    position: relative;
    z-index: 1;
}

.logo-image {
    max-width: 200px;
    height: auto;
    margin: 0 auto 10px auto;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.logo-section .subtitle {
    font-family: 'Lora', serif;
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 400;
    font-style: italic;
}

.content-section {
    padding: 40px 30px;
}

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

.intro h2 {
    font-family: 'Inter', sans-serif;
    font-size: 2rem;
    color: #0D2A4F;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.intro p {
    font-family: 'Lora', serif;
    font-size: 1.125rem;
    color: #3A4558;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

.validation-types {
    display: grid;
    gap: 24px;
    margin-top: 8px;
}

.validation-type-card {
    background: #FFFFFF;
    border: 2px solid #E2E8F0;
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    box-shadow: 0 2px 8px rgba(13, 42, 79, 0.08);
}

.validation-type-card:hover {
    border-color: #0D2A4F;
    background: #F5F7FA;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(13, 42, 79, 0.15);
}

.validation-type-card:active {
    transform: translateY(0);
}

.type-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.type-icon {
    font-size: 3rem;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.type-name {
    font-family: 'Inter', sans-serif;
    font-size: 1.625rem;
    font-weight: 700;
    color: #0D2A4F;
    flex: 1;
    letter-spacing: -0.2px;
}

.type-description {
    font-family: 'Lora', serif;
    font-size: 1.0625rem;
    color: #3A4558;
    line-height: 1.7;
    margin-bottom: 20px;
}

.type-example {
    font-size: 0.9375rem;
    color: #0D2A4F;
    font-family: 'Courier New', monospace;
    background: #F5F7FA;
    padding: 10px 16px;
    border-radius: 8px;
    display: inline-block;
    border: 1px solid #E2E8F0;
    font-weight: 600;
}

.type-example-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #3A4558;
    margin-bottom: 6px;
    font-weight: 600;
}

.type-example-container {
    margin-top: 12px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #6b7280;
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

.error {
    background: #fef2f2;
    border: 2px solid #ef4444;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.error-title {
    color: #ef4444;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.error-message {
    color: #991b1b;
    font-size: 1rem;
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 640px) {
    .logo-image {
        max-width: 150px;
    }
    
    .content-section {
        padding: 30px 20px;
    }
    
    .intro h2 {
        font-size: 1.5rem;
    }
    
    .type-icon {
        font-size: 2rem;
    }
    
    .type-name {
        font-size: 1.25rem;
    }
    
    .selling-section {
        margin-top: 20px;
        padding: 20px;
    }
    
    .selling-text {
        font-size: 0.9375rem;
    }
}

.selling-section {
    margin-top: 30px;
    padding: 24px;
    background: #f5f5f5;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(13, 42, 79, 0.1);
    text-align: center;
}

.selling-text {
    font-family: 'Lora', serif;
    font-size: 1rem;
    color: #3A4558;
    line-height: 1.7;
    margin: 0;
}

.selling-link {
    font-family: 'Inter', sans-serif;
    color: #0D2A4F;
    text-decoration: underline;
    text-decoration-color: #1E5A2E;
    text-underline-offset: 3px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.selling-link:hover {
    color: #1E5A2E;
    text-decoration-color: #0D2A4F;
    text-decoration-thickness: 2px;
}