:root {
    --primary-color: #0d47a1;
    --primary-hover: #1565c0;
    --success-color: #2e7d32;
    --danger-color: #c62828;
    --bg-color: #f4f6f9;
    --card-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header .logo {
    width: 90px;
    height: auto;
    margin-bottom: 15px;
}

.header h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.header h2 {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 5px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    padding: 30px;
    animation: slideUp 0.4s ease-out;
}

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

.search-card p {
    text-align: center;
    margin-bottom: 25px;
    color: var(--text-muted);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.input-group input {
    width: 100%;
    padding: 14px;
    border: 1px solid #cfd8dc;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 71, 161, 0.1);
}

.btn-submit {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

/* Result Card Styles */
.result-card {
    padding: 0;
    overflow: hidden;
}

.result-header {
    padding: 20px;
    text-align: center;
    color: white;
}

.result-card.success .result-header {
    background-color: var(--success-color);
}

.result-card.failed .result-header {
    background-color: var(--danger-color);
}

.result-body {
    padding: 30px;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.result-table td {
    padding: 10px 0;
    font-size: 1rem;
}

.result-table td:first-child {
    color: var(--text-muted);
    width: 40%;
}

.message {
    background-color: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.5;
    text-align: center;
    margin-bottom: 20px;
}

.btn-back {
    display: block;
    text-align: center;
    text-decoration: none;
    background-color: #e0e0e0;
    color: var(--text-main);
    padding: 12px;
    margin: 0 30px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.3s;
}

.btn-back:hover {
    background-color: #bdbdbd;
}

.not-found {
    text-align: center;
}

.not-found h3 {
    color: var(--danger-color);
    margin-bottom: 15px;
}

.not-found p {
    margin-bottom: 25px;
    color: var(--text-muted);
}

.footer {
    text-align: center;
    margin-top: 30px;
    font-size: 0.8rem;
    color: #999;
}

/* Responsiveness */
@media (max-width: 480px) {
    .header h1 { font-size: 1.5rem; }
    .card { padding: 20px; }
    .result-body { padding: 20px; }
    .btn-back { margin: 0 20px 20px; }
}