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

/* Inherit body styles from common.css */

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Inherit h1 styles from common.css */

/* Inherit card styles from common.css */

.card h2 {
    color: var(--accent-secondary);
    margin-bottom: 20px;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Fix for overlapping tables */
.step-matrix {
    overflow-x: auto;
    width: 100%;
    margin-top: 15px;
    padding-bottom: 5px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
}

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

/* Transportation Specific Styles - Minimalist */

.input-group {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.input-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-field label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.input-field input,
.input-field select {
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    font-size: 1rem;
    width: 180px;
}

.input-field input:focus,
.input-field select:focus {
    border-color: var(--viz-purple);
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
}

.matrix-container {
    overflow-x: auto;
    margin: 25px 0;
    padding: 5px;
}

th {
    color: var(--light);
    font-weight: 600;
    padding-bottom: 15px;
    letter-spacing: 0.02em;
}

th.dummy {
    color: var(--viz-error);
    font-style: italic;
}

th.supply-header {
    color: var(--viz-success);
}

.row-header {
    color: var(--viz-purple);
    font-weight: 600;
    padding-right: 15px;
}

.row-header.dummy {
    color: var(--text-muted);
    font-style: italic;
}

.demand-row td {
    color: var(--viz-info);
    font-weight: 600;
    padding-top: 15px;
}

td input {
    width: 70px;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-sm);
    background: rgba(0, 0, 0, 0.15);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
    transition: var(--transition-fast);
}

td input:focus {
    outline: none;
    background: rgba(0, 0, 0, 0.25);
    border-color: var(--viz-purple);
    transform: scale(1.05);
}

td input.supply-input {
    border-color: rgba(74, 222, 128, 0.2);
    background: rgba(74, 222, 128, 0.05);
    color: var(--viz-success);
    font-weight: 600;
}

td input.demand-input {
    border-color: rgba(96, 165, 250, 0.2);
    background: rgba(96, 165, 250, 0.05);
    color: var(--viz-info);
    font-weight: 600;
}

td input.dummy-cell {
    background: rgba(0, 0, 0, 0.1);
    border-color: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.method-selection {
    margin: 25px 0;
    padding: 25px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
}

.method-options {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.03);
    padding: 10px 18px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.radio-option:hover {
    background: rgba(255, 255, 255, 0.08);
}

.radio-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--viz-purple);
}

.result-card {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.05), rgba(96, 165, 250, 0.05));
    border: 1px solid rgba(74, 222, 128, 0.15);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.step-container {
    margin: 20px 0;
    padding: 25px;
    background: var(--glass-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--viz-purple);
    box-shadow: none;
}

.step-container.optimal {
    border-left-color: var(--viz-success);
    background: linear-gradient(to right, rgba(74, 222, 128, 0.02), transparent);
}

.step-container.improvement {
    border-left-color: var(--viz-warning);
}

.step-title {
    color: var(--light);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.step-container.optimal .step-title {
    color: var(--viz-success);
}

.step-container.improvement .step-title {
    color: var(--viz-warning);
}

.step-matrix table {
    margin: 15px 0;
}

.step-matrix th {
    padding: 8px 12px;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
}

.step-matrix td {
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    min-width: 50px;
    font-size: 0.95rem;
}

.step-matrix td.allocated {
    background: rgba(212, 185, 78, 0.35);
    border: 2px solid #d4b94e;
    color: #d4b94e;
    font-weight: bold;
}

.step-matrix td.selected {
    background: linear-gradient(135deg, #00ff88, #00d9ff);
    color: #1a1a2e;
    font-weight: bold;
}

.step-matrix td.penalty {
    background: rgba(254, 202, 87, 0.3);
    color: #feca57;
}

.step-matrix td.negative {
    background: rgba(255, 182, 193, 0.35);
    border: 2px solid #e8a0a8;
    color: #e8a0a8;
    font-weight: bold;
}

.step-matrix td.loop-plus {
    background: rgba(0, 255, 136, 0.3);
    color: #00ff88;
}

.step-matrix td.loop-minus {
    background: rgba(255, 107, 107, 0.3);
    color: #ff6b6b;
}

.step-matrix td.dummy {
    background: rgba(200, 200, 200, 0.15);
    color: #c0c0c0;
    font-style: italic;
}

.final-result {
    text-align: center;
    padding: 25px;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(0, 217, 255, 0.2));
    border-radius: 12px;
    margin-top: 20px;
}

.final-result h3 {
    color: #DADD98;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.allocation-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 15px 0;
}

.allocation-list li {
    background: rgba(255, 107, 107, 0.2);
    padding: 10px 18px;
    border-radius: 8px;
    border: 1px solid rgba(255, 107, 107, 0.3);
    font-size: 0.95rem;
}

.allocation-list li.dummy-alloc {
    background: rgba(136, 136, 136, 0.2);
    border-color: rgba(136, 136, 136, 0.3);
    color: #888;
}

.total-cost {
    font-size: 2.2rem;
    color: #DADD98;
    font-weight: bold;
    margin-top: 15px;
}

.warning-box {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

.warning-box p {
    color: #ff6b6b;
    font-size: 0.9rem;
    line-height: 1.6;
}

.names-section {
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.names-group {
    margin-bottom: 15px;
}

.names-group:last-child {
    margin-bottom: 0;
}

.names-group>label {
    display: block;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.names-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.names-container input {
    padding: 8px 12px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 0.9rem;
    width: 100px;
    transition: all 0.3s ease;
}

.names-container input:focus {
    outline: none;
    border-color: #ff6b6b;
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.2);
}

.names-container input.dummy-name {
    border-color: rgba(136, 136, 136, 0.3);
    color: #888;
}

.uv-table {
    margin-top: 15px;
}

.uv-table td {
    padding: 5px 10px;
}

.uv-value {
    color: #feca57;
    font-weight: 600;
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    .input-group {
        flex-direction: column;
    }

    .input-field input {
        width: 100%;
    }

    .method-options {
        flex-direction: column;
        gap: 15px;
    }
}