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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.header {
    background: #222;
    color: #fff;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.form-container {
    padding: 32px;
}

.form-errors {
    border: 1px solid #e74c3c;
    background: #fdecea;
    color: #c0392b;
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-weight: 600;
}

.form-errors ul {
    margin: 0;
    padding-left: 20px;
}

.form-errors--visible {
    display: block;
}

.form-section {
    margin-bottom: 32px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    border-left: 4px solid #bbb;
}

.section-title {
    font-size: 1.3rem;
    color: #222;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #222;
}

.label-addon {
    font-weight: 500;
    font-size: 0.9rem;
    color: #555;
    margin-left: 6px;
}

input,
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 1rem;
    background: #fff;
    color: #222;
    transition: border-color 0.2s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #222;
    box-shadow: 0 0 0 2px #bbb;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn[disabled],
.btn[disabled]:hover {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-calculate {
    width: 100%;
    margin-top: 20px;
    font-size: 1.3rem;
    padding: 18px;
}

.results {
    background: linear-gradient(135deg, #00b894 0%, #00a085 100%);
    color: white;
    padding: 30px;
    border-radius: 10px;
    margin-top: 30px;
    display: none;
}

.results h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.result-item:last-child {
    border-bottom: none;
    font-size: 1.2rem;
    font-weight: bold;
    margin-top: 15px;
    padding-top: 20px;
    border-top: 2px solid rgba(255, 255, 255, 0.3);
}

.result-item--header {
    background: #fff;
    color: #111;
    padding: 15px;
    border-radius: 0;
    margin-bottom: 15px;
}

.result-item--section {
    background: #fff;
    color: #111;
    border-top: 2px solid #bbb;
    padding-top: 15px;
    margin-top: 15px;
}

.result-item--divider {
    background: #fff;
    color: #111;
    border-top: 1px solid #bbb;
    padding-top: 10px;
    margin-top: 10px;
}

.result-item--plain {
    background: #fff;
    color: #111;
}

.result-item--small {
    background: #fff;
    color: #111;
    font-size: 0.9rem;
}

.result-item--highlight {
    background: #fff;
    color: #111;
    padding: 10px;
    border-radius: 0;
}

.result-item--total {
    background: #fff;
    color: #111;
    padding: 20px;
    border-radius: 0;
    margin-top: 20px;
    font-size: 1.3rem;
    border: 2px solid #bbb;
}

.result-item__value--large {
    font-size: 1.2rem;
    font-weight: 700;
}

.result-comments {
    background: #fff;
    color: #111;
    border: 1px solid #bbb;
    padding: 16px;
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result-comments__label {
    font-weight: 600;
}

.result-comments__value {
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.4;
}

.result-note {
    display: block;
    font-size: 0.85rem;
    color: #555;
    margin-top: 4px;
}

.result-item--warning {
    background: #fff5f5;
    color: #c0392b;
    border-left: 4px solid #e74c3c;
    padding: 12px 16px;
}

.result-footer {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: #fff;
    color: #111;
}

.result-footer__date {
    font-weight: 600;
    font-size: 1rem;
}

.signature-box {
    border: 2px solid #222;
    border-radius: 6px;
    padding: 14px;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: #fff;
}

.signature-box__title {
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.signature-box__area {
    flex: 1;
    border: 1px dashed #999;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.8);
}

.meal-deductions {
    display: none;
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.warning {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.hotel-authorization-group {
    margin-top: 10px;
}

.checkbox-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: #222;
}

.checkbox-inline input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.info-box {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.expenses-header {
    display: grid;
    grid-template-columns: minmax(180px, 1.2fr) minmax(180px, 1.5fr) minmax(120px, 0.8fr) auto;
    gap: 12px;
    font-weight: 600;
    color: #444;
    padding: 0 4px 6px;
    font-size: 0.95rem;
}

.expenses-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.expense-row {
    display: grid;
    grid-template-columns: minmax(180px, 1.2fr) minmax(180px, 1.5fr) minmax(120px, 0.8fr) auto;
    gap: 12px;
    align-items: center;
}

.expense-row button {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
}

.expense-amount--readonly {
    background: #f5f7fa;
    color: #555;
    cursor: not-allowed;
}

.expense-car-details {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 10px;
    background: #f4faff;
    border: 1px solid #cbe0f5;
    border-radius: 6px;
    padding: 10px 12px;
    align-items: end;
}

.expense-car-details__label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-weight: 600;
    color: #154360;
}

.expense-car-details__hint {
    margin: 0;
    font-size: 0.85rem;
    color: #2e86c1;
}

.expense-warning {
    grid-column: 1 / -1;
    background: #fff6da;
    border: 1px solid #f3cd7a;
    color: #8a6d1d;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.9rem;
}

.expense-row input[type="number"] {
    text-align: right;
}

.btn-secondary {
    background: #fff;
    color: #222;
    border: 1px solid #bbb;
    padding: 10px 20px;
    font-size: 1rem;
}

.btn-secondary:hover {
    background: #f0f0f0;
    box-shadow: none;
    transform: none;
}

.btn-remove-expense {
    background: #ffecec;
    color: #c0392b;
    border: 1px solid #f5b7b1;
    cursor: pointer;
    padding: 10px 14px;
}

.btn-remove-expense:hover {
    background: #f8d7da;
}

@media (max-width: 768px) {
    .expenses-header {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .container {
        margin: 10px;
    }

    .form-container {
        padding: 20px;
    }

    .header {
        padding: 20px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .expense-row {
        grid-template-columns: 1fr;
        gap: 10px;
        align-items: stretch;
    }

    .expense-row button {
        justify-self: start;
    }
}