:root {
    --color-primary: #1a237e;
    --color-secondary: #5c6bc0;
    --color-accent-blue: #3f51b5;
    --color-hero-bg: #312b2c;
    --color-success: #2e7d32;
    --color-danger: #d32f2f;
    --color-bg: #f8f9fa;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background:
        radial-gradient(circle at top left, rgba(63, 81, 181, 0.12), transparent 32%),
        radial-gradient(circle at top right, rgba(193, 30, 58, 0.08), transparent 24%),
        linear-gradient(135deg, #eef2ff 0%, #f7f8fb 54%, #eef3f8 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: #333;
    line-height: 1.6;
}

.top-header {
    background: linear-gradient(90deg, #2a2627 0%, #322f30 54%, #2a2627 100%);
    color: white;
    padding: 1.35rem 1.5rem;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.header-logo {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.header-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.header-title {
    text-align: center;
    flex: 1;
}

.header-title h1 {
    font-family: 'Karma', serif;
    font-size: clamp(1.5rem, 2.5vw, 2.2rem);
    line-height: 1.15;
    margin: 0;
    color: #fff;
    letter-spacing: -0.2px;
    font-weight: 600;
}

.container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.25rem;
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 18px 48px rgba(18, 32, 72, 0.12);
    width: 100%;
    overflow: hidden;
}

.card-header {
    background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.5));
    padding: 2rem 2rem 1.75rem;
    text-align: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.card-header h2 {
    color: var(--color-primary);
    font-size: 1.9rem;
    margin-bottom: 0.5rem;
}

.card-body {
    padding: 2.25rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.form-control {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.1);
    background: white;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-align: center;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 4px rgba(63, 81, 181, 0.1);
}

.btn {
    display: block;
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.2);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

.alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
}

.alert-danger {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.result {
    text-align: center;
}

.result-status {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border-radius: 16px;
}

.result-status.verified {
    background: rgba(46, 125, 50, 0.1);
    border: 1px solid rgba(46, 125, 50, 0.2);
    color: var(--color-success);
}

.result-status.revoked {
    background: rgba(211, 47, 47, 0.1);
    border: 1px solid rgba(211, 47, 47, 0.2);
    color: var(--color-danger);
}

.result-status h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.details-section {
    margin-bottom: 2.5rem;
}

.details-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.details-table th, .details-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    text-align: left;
}

.details-table th {
    color: var(--color-secondary);
    font-weight: 600;
    width: 40%;
}

.details-table td {
    font-weight: 500;
}

.badge {
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success { background: var(--color-success); color: white; }
.badge-danger { background: var(--color-danger); color: white; }
.badge-info { background: #17a2b8; color: white; }

.footer {
    padding: 1.5rem 2rem 2rem;
    text-align: center;
    color: var(--color-secondary);
    font-size: 0.9rem;
}

.footer a {
    color: var(--color-primary);
    text-decoration: none;
}

@media (max-width: 600px) {
    .top-header {
        padding: 1rem 1rem;
    }

    .header-brand {
        gap: 0.8rem;
    }

    .header-logo {
        width: 56px;
        height: 56px;
    }

    .header-title h1 {
        font-size: 1.45rem;
    }

    .container {
        padding: 1rem;
    }
    .glass-card {
        margin-top: -0.85rem;
        border-radius: 20px;
    }
    .card-body {
        padding: 1.5rem;
    }
    .details-table th, .details-table td {
        padding: 0.75rem 0.5rem;
    }
}