:root {
    --teal-dark: #0d7377;
    --teal-main: #14919b;
    --teal-light: #6db3b8;
    --teal-lighter: #d6f0f2;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f8fafb;
    --border-color: #e0e0e0;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #f8fafb 0%, #e8f4f5 100%);
    color: var(--text-dark);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
}

.header h1 {
    font-size: 2.5rem;
    color: var(--teal-dark);
    margin-bottom: 5px;
    font-weight: 700;
}

.header .subtitle {
    color: var(--text-light);
    font-size: 1rem;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.card h2 {
    color: var(--teal-dark);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--teal-main);
    box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.1);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--teal-main);
    box-shadow: 0 4px 12px rgba(13, 115, 119, 0.3);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--teal-light);
    color: white;
}

.btn-secondary:hover {
    background: var(--teal-main);
}

.loading-state {
    text-align: center;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.loading-state p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--teal-lighter);
    border-top-color: var(--teal-dark);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.results-header h2 {
    margin-bottom: 0;
}

.stats-bar {
    background: var(--teal-lighter);
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    color: var(--teal-dark);
    font-weight: 500;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

thead {
    background: var(--bg-light);
    border-bottom: 2px solid var(--teal-main);
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--teal-dark);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: var(--teal-lighter);
    opacity: 0.7;
}

tbody tr:last-child td {
    border-bottom: none;
}

a {
    color: var(--teal-dark);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.error-state {
    background: #fee2e2;
    border: 1px solid var(--error);
    color: var(--error);
    padding: 15px;
    border-radius: 6px;
    margin-top: 20px;
}

#errorMessage {
    margin: 0;
}