:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

.header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 24px 0;
    box-shadow: var(--shadow-md);
}

.header h1 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
}

.header p {
    text-align: center;
    opacity: 0.85;
    margin-top: 4px;
    font-size: 15px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    margin-top: 24px;
    margin-bottom: 40px;
}

.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title .icon {
    font-size: 20px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: white;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.radio-group {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--gray-700);
}

.radio-group input[type="radio"] {
    width: auto;
    accent-color: var(--primary);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--gray-700);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 3px;
    accent-color: var(--primary);
}

.packaging-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 16px;
}

.packaging-option {
    padding: 12px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    text-align: center;
    font-size: 13px;
    transition: all 0.2s;
}

.packaging-option:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.packaging-option.active {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
}

.result-card {
    position: sticky;
    top: 20px;
}

.result-total {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius);
    color: white;
    margin-bottom: 20px;
}

.result-total .label {
    font-size: 14px;
    opacity: 0.9;
}

.result-total .amount {
    font-size: 36px;
    font-weight: 700;
    margin-top: 4px;
}

.result-total .currency {
    font-size: 18px;
    font-weight: 400;
}

.result-total .delivery-time {
    font-size: 13px;
    margin-top: 8px;
    opacity: 0.85;
}

.result-breakdown {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

.result-row .label {
    color: var(--gray-600);
}

.result-row .value {
    font-weight: 600;
    color: var(--gray-800);
}

.result-method {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.result-method.weight {
    background: #fef3c7;
    color: #92400e;
}

.result-method.volume {
    background: #dbeafe;
    color: #1e40af;
}

.map-section {
    margin-top: 24px;
    margin-bottom: 40px;
}

.map-container {
    height: 450px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-200);
}

.terminals-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 16px;
}

.terminal-card {
    padding: 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
}

.terminal-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.terminal-card.selected {
    border-color: var(--primary);
    background: var(--primary-light);
}

.terminal-card .t-name {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.terminal-card .t-address {
    color: var(--gray-500);
    margin-bottom: 4px;
}

.terminal-card .t-info {
    color: var(--gray-400);
    font-size: 12px;
}

.placeholder-msg {
    text-align: center;
    padding: 40px;
    color: var(--gray-400);
    font-size: 14px;
}

.loading {
    opacity: 0.5;
    pointer-events: none;
}

.tab-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.tab-btn {
    padding: 8px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.tab-btn:hover { border-color: var(--primary); }

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

.container-options {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.container-option {
    padding: 8px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.container-option:hover { border-color: var(--primary); }

.container-option.active {
    border-color: var(--primary);
    background: var(--primary-light);
}

.select-wrapper {
    position: relative;
}

.city-search {
    position: relative;
}

.city-search input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
}

.city-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.city-dropdown.show { display: block; }

.city-dropdown-item {
    padding: 10px 12px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.1s;
}

.city-dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.swagger-link {
    text-align: center;
    margin: 20px 0 40px;
    font-size: 14px;
}

.swagger-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.swagger-link a:hover { text-decoration: underline; }

@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
    .result-card {
        position: static;
    }
    .terminals-list {
        grid-template-columns: 1fr;
    }
    .form-row, .form-row-3 {
        grid-template-columns: 1fr;
    }
}