:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --success-hover: #15803d;
    --bg: #f8fafc;
    --card: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
    margin: 0;
    padding: 2rem;
}

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

header {
    margin-bottom: 2rem;
    text-align: center;
}

header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
}

header p {
    color: var(--text-muted);
    margin: 0;
}

section {
    background: var(--card);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    margin-bottom: 2rem;
}

h2 {
    margin-top: 0;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

small {
    display: block;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.2s;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn.primary {
    background-color: var(--primary);
    color: white;
    width: 100%;
}

.btn.primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

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

.btn.secondary:hover:not(:disabled) {
    background-color: var(--bg);
}

.btn.whatsapp {
    background-color: var(--success);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn.whatsapp:hover {
    background-color: var(--success-hover);
}

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

.results-header h2 {
    margin: 0;
    border: none;
    padding: 0;
}

.table-container {
    overflow-x: auto;
    margin-top: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--bg);
    font-weight: 600;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem !important;
}

.error {
    color: #ef4444;
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge.info {
    background-color: #e0f2fe;
    color: #0369a1;
}

.badge.error {
    background-color: #fee2e2;
    color: #b91c1c;
}

#loading {
    margin-top: 1rem;
    text-align: center;
    color: var(--primary);
    font-weight: 500;
}