:root {
    --primary: #0a66c2;
    --primary-hover: #004182;
    --bg-color: #f3f2ef;
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-main: #333;
    --text-muted: #666;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
    background: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    color: var(--text-main);
}

.glass-container {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    max-width: 900px;
    width: 100%;
    text-align: center;
}

.header {
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 1.8rem;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.certificate-wrapper {
    margin: 0 auto 2rem;
    max-width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    background: #fff;
    border: 1px solid #ddd;
}

.certificate-wrapper img {
    width: 100%;
    display: block;
    height: auto;
}

.actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.btn-linkedin {
    background-color: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.btn-linkedin:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(10, 102, 194, 0.3);
}

.btn-download {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid #ccc;
}

.btn-download:hover {
    background-color: #f0f0f0;
}

.meta-info {
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(0,0,0,0.1);
    padding-top: 1rem;
}

@media (max-width: 600px) {
    .glass-container {
        padding: 1.5rem;
    }
    .header h1 {
        font-size: 1.4rem;
    }
}