:root {
    --primary: #2A9D8F;
    --primary-dark: #238B7E;
    --primary-light: #E6F5F3;
    --accent: #264653;
    --bg: #f7f9fb;
    --card: #ffffff;
    --text: #264653;
    --text-light: #6b7f8d;
    --border: #e0e7ec;
    --radius: 10px;
    --ok-green: #28a745;
    --nok-red: #dc3545;
    --danger: #ef4444;
}

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

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

header {
    background: var(--card);
    border-bottom: 2px solid var(--primary);
    padding: 14px 32px;
    display: flex;
    align-items: center;
    gap: 14px;
}

header img {
    height: 36px;
}

header .brand {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
}

header .divider {
    width: 1px;
    height: 24px;
    background: var(--border);
}

header h1 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-light);
}

main {
    max-width: 1000px;
    margin: 32px auto;
    padding: 0 32px;
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}

.card h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1.5rem;
}

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

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 0.2rem;
}

.form-group input,
.form-group select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--text);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.15);
}

.form-group .unit {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.15rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}

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

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

.btn-secondary {
    background: none;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-secondary:hover {
    background: var(--primary-light);
}

.actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-color: var(--danger);
}

.ok { color: var(--ok-green); font-weight: 700; }
.nok { color: var(--nok-red); font-weight: 700; }

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

table.results th,
table.results td {
    padding: 10px 12px;
    border-bottom: 1px solid #f0f3f5;
    text-align: right;
}

table.results th {
    background: var(--accent);
    color: white;
    font-weight: 600;
    font-size: 0.8rem;
    text-align: center;
    padding: 10px 12px;
    border-bottom: none;
}

table.results td:first-child {
    text-align: left;
    font-weight: 600;
}

table.results tr:hover td {
    background: var(--bg);
}

footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-light);
}