#arac-kok{
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
& {
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
      background: #eef0f5;
      min-height: 100vh;
      color: #1e293b;
    }
.page-wrap {
      background: #eef0f5;
      padding: 1.25rem;
      max-width: 900px;
      margin: 0 auto;
    }
.tab-bar {
      background: #fff;
      border: 1px solid #e0e4ec;
      border-radius: 12px;
      margin-bottom: 1.25rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      overflow: hidden;
    }
.tab {
      padding: 14px 10px;
      text-align: center;
      cursor: pointer;
      position: relative;
      border-right: 1px solid #e0e4ec;
      transition: background 0.15s;
    }
.tab:last-child { border-right: none; }
.tab-icon { font-size: 22px; margin-bottom: 4px; }
.tab-label { font-size: 13px; font-weight: 600; color: #64748b; }
.tab-sub { font-size: 11px; color: #94a3b8; margin-top: 2px; }
.tab.active { background: #f0f5ff; }
.tab.active .tab-label { color: #2563eb; }
.tab.active::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0; right: 0;
      height: 3px;
      background: #f97316;
      border-radius: 2px 2px 0 0;
    }
.tab-badge {
      position: absolute;
      top: 8px; right: 8px;
      background: #f97316;
      color: #fff;
      font-size: 10px;
      font-weight: 600;
      padding: 1px 7px;
      border-radius: 8px;
    }
.content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items: start;
    }
@media (max-width: 640px) {
      .content { grid-template-columns: 1fr; }
    }
.panel {
      background: #fff;
      border: 1px solid #e0e4ec;
      border-radius: 12px;
      padding: 1.1rem;
      margin-bottom: 14px;
    }
.step-header {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 1rem;
    }
.step-badge {
      width: 26px; height: 26px;
      border-radius: 50%;
      background: #2563eb;
      color: #fff;
      font-size: 13px;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
.step-title { font-size: 14px; font-weight: 600; color: #1e293b; }
.input-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
.input-group { display: flex; flex-direction: column; gap: 4px; }
.input-full { grid-column: 1 / -1; }
.input-label { font-size: 11px; color: #64748b; font-weight: 500; }
.input-wrapper {
      display: flex;
      align-items: center;
      border: 1.5px solid #e0e4ec;
      border-radius: 8px;
      background: #f8fafc;
      transition: border-color 0.15s, background 0.15s;
    }
.input-wrapper:focus-within {
      border-color: #2563eb;
      background: #fff;
    }
.input-wrapper input {
      flex: 1;
      border: none;
      background: transparent;
      padding: 8px 8px;
      font-size: 15px;
      font-weight: 500;
      color: #1e293b;
      outline: none;
      width: 0;
      min-width: 0;
    }
.input-wrapper input::placeholder {
      color: #cbd5e1;
      font-weight: 400;
      font-size: 14px;
    }
.input-unit {
      padding: 8px 9px 8px 4px;
      font-size: 11px;
      color: #94a3b8;
      font-weight: 500;
      white-space: nowrap;
    }
.transport-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 8px;
      margin-bottom: 0;
    }
.transport-card {
      border: 1.5px solid #e0e4ec;
      border-radius: 10px;
      padding: 10px 6px;
      text-align: center;
      cursor: pointer;
      background: #f8fafc;
      transition: all 0.15s;
      user-select: none;
    }
.transport-card:hover { border-color: #93c5fd; background: #eff6ff; }
.transport-card.active-sea  { border-color: #2563eb; background: #eff6ff; }
.transport-card.active-land { border-color: #16a34a; background: #f0fdf4; }
.transport-card.active-air  { border-color: #d97706; background: #fffbeb; }
.transport-icon { font-size: 22px; margin-bottom: 3px; }
.transport-name { font-size: 12px; font-weight: 600; color: #475569; }
.transport-div  { font-size: 10px; color: #94a3b8; margin-top: 2px; }
.calc-btn {
      width: 100%;
      margin-top: 12px;
      background: #fff;
      color: #1e293b;
      border: 1.5px solid #e0e4ec;
      border-radius: 8px;
      padding: 10px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.15s;
    }
.calc-btn:hover { border-color: #2563eb; color: #2563eb; background: #eff6ff; }
.calc-btn:active { transform: scale(0.99); }
.results-panel {
      background: #fff;
      border: 1px solid #e0e4ec;
      border-radius: 12px;
      min-height: 360px;
      display: flex;
      flex-direction: column;
    }
.empty-result {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      flex: 1;
      padding: 2rem;
      gap: 10px;
      min-height: 360px;
    }
.empty-icon { font-size: 52px; opacity: 0.28; }
.empty-text { font-size: 13px; color: #94a3b8; }
.results-content { padding: 1.1rem; flex: 1; display: none; }
.summary-chips {
      display: flex;
      gap: 7px;
      flex-wrap: wrap;
      margin-bottom: 12px;
      padding-bottom: 12px;
      border-bottom: 1px solid #f1f5f9;
    }
.chip {
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
      border-radius: 20px;
      padding: 3px 11px;
      font-size: 12px;
      color: #475569;
    }
.chip strong { color: #1e293b; }
.result-row {
      border: 1.5px solid #e0e4ec;
      border-radius: 10px;
      padding: 11px 12px;
      margin-bottom: 9px;
    }
.result-row:last-child { margin-bottom: 0; }
.result-row.sea-row  { border-color: #bfdbfe; background: #eff6ff; }
.result-row.land-row { border-color: #bbf7d0; background: #f0fdf4; }
.result-row.air-row  { border-color: #fed7aa; background: #fff7ed; }
.row-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 6px;
    }
.row-mode { display: flex; align-items: center; gap: 6px; }
.row-icon { font-size: 16px; }
.row-name { font-size: 13px; font-weight: 600; }
.sea-row  .row-name { color: #1e40af; }
.land-row .row-name { color: #15803d; }
.air-row  .row-name { color: #b45309; }
.charge-badge {
      font-size: 10px;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 10px;
    }
.sea-row  .charge-badge { background: #dbeafe; color: #1e40af; }
.land-row .charge-badge { background: #dcfce7; color: #15803d; }
.air-row  .charge-badge { background: #fef3c7; color: #b45309; }
.row-main {
      display: flex;
      align-items: baseline;
      gap: 5px;
      margin-bottom: 7px;
    }
.row-value {
      font-size: 24px;
      font-weight: 700;
      color: #1e293b;
      font-variant-numeric: tabular-nums;
    }
.row-unit { font-size: 12px; color: #64748b; }
.row-details {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 5px;
      border-top: 1px solid rgba(0,0,0,0.06);
      padding-top: 7px;
    }
.detail-item { text-align: center; }
.detail-label { font-size: 10px; color: #94a3b8; margin-bottom: 1px; }
.detail-val   { font-size: 12px; font-weight: 600; color: #334155; }
.formula-note {
      font-size: 10px;
      color: #94a3b8;
      margin-top: 5px;
      font-style: italic;
    }
}