:root {
    --akc-primary: #ea580c;
    --akc-secondary: #f97316;
    --akc-text: #0f172a;
    --akc-text-muted: #475569;
    --akc-bg: #fff;
    --akc-bg-secondary: #f8fafc;
    --akc-bg-tertiary: #f1f5f9;
    --akc-border: #e2e8f0;
  }

  .theme-dark {
    --akc-primary: #fb923c;
    --akc-secondary: #fb923c;
    --akc-text: #fff;
    --akc-text-muted: #a0aec0;
    --akc-bg: #0f172a;
    --akc-bg-secondary: #1c1f2e;
    --akc-bg-tertiary: #151720;
    --akc-border: #2d3748;
  }

  .akc-wrapper {
    max-width: 800px;
    margin: 0 auto;
  }

  .akc-main-card {
    background: var(--akc-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--akc-border);
    border-radius: 2rem;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    color: var(--akc-text);
  }

  .theme-dark .akc-main-card {
    background: rgba(15, 23, 42, 0.4);
    border-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  }

  .akc-tabs {
    display: flex;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.04);
    padding: 0.5rem;
    border-radius: 1.5rem;
    margin-bottom: 2.5rem;
  }

  .theme-dark .akc-tabs {
    background: rgba(0, 0, 0, 0.2);
  }

  .akc-tab-btn {
    flex: 1;
    border: none;
    background: transparent;
    padding: 1rem;
    border-radius: 1.2rem;
    font-size: 1rem;
    font-weight: 600;
    color: inherit;
    opacity: 0.6;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
  }

  .akc-tab-btn:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.05);
  }

  .akc-tab-btn.active {
    opacity: 1;
    background: var(--akc-primary);
    color: var(--akc-text);
    box-shadow: 0 8px 20px rgba(234, 88, 12, 0.3);
    transform: translateY(-2px);
  }

  .akc-tab-content {
    display: none;
    animation: slide-up 0.4s ease-out forwards;
  }

  .akc-tab-content.active {
    display: block;
  }

  @keyframes slide-up {
    from {
      opacity: 0;
      transform: translateY(15px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .akc-step-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--akc-text);
  }

  .akc-step-number {
    background: var(--akc-primary);
    color: var(--akc-text);
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1rem;
  }

  .akc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 2.5rem;
  }

  .akc-item-card {
    background: var(--akc-bg-secondary);
    border: 1px solid var(--akc-border);
    border-radius: 1.5rem;
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: inherit;
  }

  .theme-dark .akc-item-card {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.05);
  }

  .akc-item-card:hover {
    border-color: rgba(234, 88, 12, 0.5);
  }

  .akc-item-card.active {
    background: rgba(234, 88, 12, 0.1);
    border-color: var(--akc-primary);
    box-shadow: 0 10px 25px rgba(234, 88, 12, 0.15);
    transform: translateY(-4px);
  }

  .akc-item-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--akc-primary);
    font-size: 1.5rem;
    transition: all 0.3s ease;
  }

  .theme-dark .akc-item-icon {
    background: rgba(255, 255, 255, 0.05);
  }

  .akc-item-card.active .akc-item-icon {
    background: var(--akc-primary);
    color: var(--akc-text);
    transform: scale(1.1);
  }

  .akc-item-name {
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.2;
  }

  .akc-item-sub {
    font-size: 0.75rem;
    opacity: 0.6;
    margin-top: 0.25rem;
  }

  .akc-amount-control {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
    align-items: center;
  }

  .akc-stepper {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 2rem;
    padding: 0.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
  }

  .theme-dark .akc-stepper {
    background: rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.05);
  }

  .akc-step-btn {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    border: none;
    background: white;
    color: var(--akc-primary);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
  }

  .theme-dark .akc-step-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--akc-text);
  }

  .akc-step-btn:hover {
    transform: scale(1.05);
    background: var(--akc-primary);
    color: var(--akc-text);
  }

  .akc-step-input {
    width: 120px;
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    background: transparent;
    border: none;
    color: inherit;
    outline: none;
  }

  .akc-quick-amounts {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .akc-quick-btn {
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    border: 1px solid var(--akc-border);
    background: transparent;
    color: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .theme-dark .akc-quick-btn {
    border-color: rgba(255, 255, 255, 0.1);
  }

  .akc-quick-btn:hover {
    background: rgba(234, 88, 12, 0.1);
    color: var(--akc-primary);
    border-color: var(--akc-primary);
  }

  .akc-result-display {
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.1), rgba(249, 115, 22, 0.05));
    border: 2px solid rgba(234, 88, 12, 0.2);
    border-radius: 2rem;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .theme-dark .akc-result-display {
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.15), rgba(249, 115, 22, 0.05));
    border-color: rgba(234, 88, 12, 0.3);
  }

  .akc-result-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(234, 88, 12, 0.1), transparent 70%);
    pointer-events: none;
  }

  .akc-result-value {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(to right, var(--akc-primary), var(--akc-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
  }

  .akc-result-unit {
    font-size: 1.5rem;
    font-weight: 700;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--akc-text-muted);
  }

  .akc-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 1.5rem;
    padding: 0.5rem;
    margin-bottom: 2.5rem;
  }

  .theme-dark .akc-toggle {
    background: rgba(0, 0, 0, 0.3);
  }

  .akc-toggle-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: transparent;
    color: inherit;
    font-weight: 600;
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.6;
  }

  .akc-toggle-btn.active {
    background: var(--akc-primary);
    color: var(--akc-text);
    opacity: 1;
    box-shadow: 0 4px 15px rgba(234, 88, 12, 0.3);
  }

  .akc-temps-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 3rem;
  }

  .akc-temp-box {
    flex: 1;
    background: var(--akc-bg-secondary);
    border: 1px solid var(--akc-border);
    border-radius: 2rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
  }

  .theme-dark .akc-temp-box {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.05);
  }

  .akc-temp-box:focus-within {
    border-color: var(--akc-primary);
    box-shadow: 0 10px 30px rgba(234, 88, 12, 0.1);
    transform: translateY(-5px);
  }

  .akc-temp-label {
    font-size: 1rem;
    font-weight: 700;
    opacity: 0.7;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  .akc-temp-input {
    width: 100%;
    text-align: center;
    font-size: 4rem;
    font-weight: 900;
    background: transparent;
    border: none;
    color: inherit;
    outline: none;
  }

  .akc-temp-middle {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--akc-primary);
    background: rgba(234, 88, 12, 0.1);
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    flex-shrink: 0;
  }

  .akc-presets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
  }

  .akc-preset-card {
    background: var(--akc-bg-secondary);
    border: 1px solid var(--akc-border);
    border-radius: 1rem;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: inherit;
  }

  .theme-dark .akc-preset-card {
    background: rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.05);
  }

  .akc-preset-card:hover {
    background: rgba(234, 88, 12, 0.05);
    border-color: var(--akc-primary);
    transform: translateY(-2px);
  }

  .akc-preset-temp {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--akc-primary);
    margin-bottom: 0.25rem;
  }

  .akc-preset-desc {
    font-size: 0.8rem;
    opacity: 0.7;
    font-weight: 500;
  }

  @media (max-width: 768px) {
    .akc-tabs {
      flex-direction: column;
      gap: 0.5rem;
    }

    .akc-temps-container {
      flex-direction: column;
    }

    .akc-temp-middle {
      height: 3rem;
      width: 3rem;
      transform: rotate(90deg);
    }

    .akc-result-value {
      font-size: 4.5rem;
    }

    .akc-main-card {
      padding: 1.5rem;
    }
  }