.brew-mode-hint {
    font-size: 0.65rem;
    opacity: 0.7;
    font-weight: 500;
  }

  .brew-label-icon {
    display: flex;
    align-items: center;
  }

  .brew-calculator {
    --brew-bg: #fdf6ee;
    --brew-surface: #fff9f2;
    --brew-border: #e8d5bb;
    --brew-primary: #6f3d1f;
    --brew-accent: #b5651d;
    --brew-accent-light: #d4845a;
    --brew-muted: #9b7a5e;
    --brew-text: #3d2008;
    --brew-text-secondary: #7a5c42;
    --brew-water: #3b82f6;
    --brew-water-light: #eff6ff;
    --brew-ice: #93c5fd;
    --brew-result: #f0fdf4;
    --brew-result-border: #bbf7d0;

    width: 100%;
    max-width: 900px;
    margin: 0 auto 5rem;
  }

  .theme-dark .brew-calculator {
    --brew-bg: #1c1008;
    --brew-surface: #251508;
    --brew-border: #3d2a14;
    --brew-primary: #d4845a;
    --brew-accent: #e8a87c;
    --brew-accent-light: #f0c09a;
    --brew-muted: #a07858;
    --brew-text: #f5e6d3;
    --brew-text-secondary: #c4a882;
    --brew-water: #60a5fa;
    --brew-water-light: #0f1d35;
    --brew-ice: #bfdbfe;
    --brew-result: #0a1a10;
    --brew-result-border: #14532d;
  }

  .brew-card {
    background: var(--brew-surface);
    border: 1.5px solid var(--brew-border);
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(111, 61, 31, 0.08);
  }

  .brew-card-header {
    height: 4px;
    background: linear-gradient(90deg, var(--brew-primary), var(--brew-accent), var(--brew-accent-light));
  }

  .brew-card-body { padding: 2rem; }

  @media (min-width: 768px) {
    .brew-card-body { padding: 2.5rem 3rem; }
  }

  .brew-mode-switcher {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 2rem;
  }

  .brew-mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1rem;
    border-radius: 1rem;
    border: 2px solid var(--brew-border);
    background: var(--brew-bg);
    color: var(--brew-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
  }

  .brew-mode-btn:hover {
    border-color: var(--brew-accent);
    color: var(--brew-accent);
  }

  .brew-mode-btn.active {
    background: var(--brew-primary);
    border-color: var(--brew-primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(111, 61, 31, 0.3);
  }

  .brew-mode-icon {
    font-size: 1.75rem;
    line-height: 1;
  }

  .brew-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  @media (min-width: 700px) {
    .brew-grid {
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
    }
  }

  .brew-section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brew-muted);
    margin-bottom: 0.75rem;
  }

  .brew-input-group { position: relative; }

  .brew-input {
    width: 100%;
    background: var(--brew-bg);
    border: 2px solid var(--brew-border);
    border-radius: 0.875rem;
    padding: 1rem 3.5rem 1rem 1.25rem;
    font-size: 2rem;
    font-weight: 900;
    color: var(--brew-text);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: textfield;
  }

  .brew-input::-webkit-inner-spin-button,
  .brew-input::-webkit-outer-spin-button {
    appearance: none;
    margin: 0;
  }

  .brew-input:focus {
    border-color: var(--brew-accent);
    box-shadow: 0 0 0 4px rgba(181, 101, 29, 0.12);
  }

  .brew-input-unit {
    position: absolute;
    right: 1.1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    font-weight: 700;
    color: var(--brew-muted);
    pointer-events: none;
  }

  .brew-intensity-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
  }

  .brew-intensity-btn {
    padding: 0.6rem 0.4rem;
    border-radius: 0.75rem;
    border: 2px solid var(--brew-border);
    background: var(--brew-bg);
    color: var(--brew-muted);
    font-size: 0.7rem;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.3;
  }

  .brew-intensity-btn:hover {
    border-color: var(--brew-accent);
    color: var(--brew-accent);
  }

  .brew-ratio-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 900;
    margin-bottom: 0.2rem;
    color: var(--brew-text-secondary);
  }

  .brew-intensity-name {
    display: block;
    font-size: 0.6rem;
    opacity: 0.7;
  }

  .brew-intensity-btn.active {
    background: var(--brew-accent);
    border-color: var(--brew-accent);
    color: #fff;
  }

  .brew-intensity-btn.active .brew-ratio-label,
  .brew-intensity-btn.active .brew-intensity-name {
    color: #fff;
    opacity: 1;
  }

  .brew-custom-ratio {
    display: none;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    background: var(--brew-bg);
    padding: 0.75rem;
    border-radius: 0.75rem;
    border: 1.5px solid var(--brew-border);
  }

  .brew-custom-ratio.visible {
    display: grid;
  }

  .brew-custom-input {
    width: 100%;
    text-align: center;
    background: var(--brew-surface);
    border: 1.5px solid var(--brew-border);
    border-radius: 0.5rem;
    padding: 0.5rem;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--brew-text);
    outline: none;
    appearance: textfield;
  }

  .brew-custom-input::-webkit-inner-spin-button,
  .brew-custom-input::-webkit-outer-spin-button {
    appearance: none;
  }

  .brew-custom-sep {
    font-weight: 900;
    color: var(--brew-muted);
    font-size: 1.25rem;
    text-align: center;
  }

  .brew-custom-label {
    display: block;
    font-size: 0.6rem;
    text-align: center;
    color: var(--brew-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.15rem;
  }

  .brew-ice-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    border-radius: 0.875rem;
    border: 2px solid var(--brew-border);
    background: var(--brew-bg);
    margin-top: 1rem;
    gap: 0.75rem;
    cursor: pointer;
  }

  .brew-ice-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--brew-text-secondary);
  }

  .brew-toggle {
    position: relative;
    width: 2.75rem;
    height: 1.5rem;
    flex-shrink: 0;
  }

  .brew-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
  }

  .brew-toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--brew-border);
    border-radius: 9999px;
    cursor: pointer;
    transition: background 0.2s;
  }

  .brew-toggle-slider::before {
    content: '';
    position: absolute;
    width: 1.1rem;
    height: 1.1rem;
    left: 0.2rem;
    top: 0.2rem;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  }

  .brew-toggle input:checked ~ .brew-toggle-slider {
    background: var(--brew-ice);
  }

  .brew-toggle input:checked ~ .brew-toggle-slider::before {
    transform: translateX(1.25rem);
  }

  .brew-results-panel {
    background: var(--brew-bg);
    border: 1.5px solid var(--brew-border);
    border-radius: 1.25rem;
    overflow: hidden;
  }

  .brew-results-header {
    padding: 1rem 1.5rem;
    border-bottom: 1.5px solid var(--brew-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .brew-results-title {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brew-muted);
  }

  .brew-ratio-badge {
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--brew-primary);
    color: #fff;
    padding: 0.2rem 0.75rem;
    border-radius: 9999px;
  }

  .brew-result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1.5px solid var(--brew-border);
    transition: background 0.15s;
  }

  .brew-result-item:last-child {
    border-bottom: none;
  }

  .brew-result-item:hover {
    background: var(--brew-surface);
  }

  .brew-result-item-cup {
    background: var(--brew-result);
    border-color: var(--brew-result-border);
  }

  .brew-result-left {
    display: flex;
    align-items: center;
    gap: 0.875rem;
  }

  .brew-result-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
  }

  .brew-icon-coffee {
    background: rgba(111, 61, 31, 0.12);
    color: var(--brew-primary);
  }

  .brew-icon-water {
    background: var(--brew-water-light);
    color: var(--brew-water);
  }

  .brew-icon-ice {
    background: #eff6ff;
    color: var(--brew-ice);
  }

  .brew-icon-cup {
    background: rgba(181, 101, 29, 0.1);
    color: var(--brew-accent);
  }

  .brew-result-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--brew-text);
  }

  .brew-result-sub {
    font-size: 0.725rem;
    color: var(--brew-muted);
    margin-top: 0.1rem;
  }

  .brew-result-value {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--brew-text);
    font-variant-numeric: tabular-nums;
    line-height: 1;
  }

  .brew-result-value span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--brew-muted);
    margin-left: 0.2rem;
  }

  .brew-result-value-accent {
    color: var(--brew-accent);
  }

  .brew-phases { margin-top: 1.5rem; }

  .brew-phases-title {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brew-muted);
    margin-bottom: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }

  .brew-phase-list {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
  }

  .brew-phase-item {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    background: var(--brew-bg);
    border-radius: 0.875rem;
    border: 1.5px solid var(--brew-border);
    padding: 0.875rem 1rem;
  }

  .brew-phase-number {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: var(--brew-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.1rem;
  }

  .brew-phase-text {
    font-size: 0.85rem;
    color: var(--brew-text-secondary);
    line-height: 1.5;
  }

  .brew-phase-text strong {
    color: var(--brew-text);
    font-weight: 700;
  }

  .brew-cup-warning {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.875rem;
    background: rgba(181, 101, 29, 0.08);
    border: 1.5px solid rgba(181, 101, 29, 0.2);
    font-size: 0.8rem;
    color: var(--brew-accent);
    font-weight: 600;
    display: none;
  }

  .brew-cup-warning.visible {
    display: block;
  }

  .brew-favorites-section {
    margin-top: 2rem;
    border-top: 1.5px solid var(--brew-border);
    padding-top: 1.5rem;
  }

  .brew-fav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
  }

  .brew-fav-title {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brew-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }

  .brew-save-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    border-radius: 0.875rem;
    border: 1.5px solid var(--brew-accent);
    background: transparent;
    color: var(--brew-accent);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
  }

  .brew-save-btn:hover {
    background: var(--brew-accent);
    color: #fff;
  }

  .brew-fav-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .brew-fav-empty {
    text-align: center;
    padding: 1.5rem 1rem;
    font-size: 0.85rem;
    color: var(--brew-muted);
    border: 1.5px dashed var(--brew-border);
    border-radius: 0.875rem;
  }

  .brew-fav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--brew-bg);
    border: 1.5px solid var(--brew-border);
    border-radius: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
  }

  .brew-fav-item:hover {
    border-color: var(--brew-accent);
    background: var(--brew-surface);
  }

  .brew-fav-icon-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--brew-accent);
    flex-shrink: 0;
  }

  .brew-fav-info {
    flex: 1;
    min-width: 0;
  }

  .brew-fav-name {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--brew-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brew-fav-meta {
    font-size: 0.7rem;
    color: var(--brew-muted);
    margin-top: 0.1rem;
  }

  .brew-fav-delete {
    background: none;
    border: none;
    color: var(--brew-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 0.375rem;
    transition: color 0.15s;
    font-size: 0.85rem;
  }

  .brew-fav-delete:hover { color: #ef4444; }

  .brew-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
  }

  .brew-modal-overlay.visible {
    opacity: 1;
    pointer-events: all;
  }

  .brew-modal {
    background: var(--brew-surface);
    border: 1.5px solid var(--brew-border);
    border-radius: 1.25rem;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  }

  .brew-modal-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--brew-text);
    margin-bottom: 1rem;
  }

  .brew-modal-input {
    width: 100%;
    background: var(--brew-bg);
    border: 2px solid var(--brew-border);
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--brew-text);
    outline: none;
    margin-bottom: 1rem;
    transition: border-color 0.2s;
  }

  .brew-modal-input:focus {
    border-color: var(--brew-accent);
  }

  .brew-modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
  }

  .brew-modal-cancel {
    padding: 0.625rem 1.25rem;
    border-radius: 0.75rem;
    border: 1.5px solid var(--brew-border);
    background: transparent;
    color: var(--brew-muted);
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
  }

  .brew-modal-cancel:hover {
    border-color: var(--brew-muted);
    color: var(--brew-text);
  }

  .brew-modal-confirm {
    padding: 0.625rem 1.25rem;
    border-radius: 0.75rem;
    border: none;
    background: var(--brew-primary);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
  }

  .brew-modal-confirm:hover {
    opacity: 0.9;
  }

  .brew-hidden {
    display: none;
  }