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

      :root {
        --bg: #ffffff;
        --bg-secondary: #eaf1f1;
        --bg-tertiary: #ecedd1;
        --bg-card: #ffffff;
        --bg-highlight: #f5f5f5;
        --text-primary: #1a1a18;
        --text-secondary: #343236;
        --text-tertiary: #6c757d;
        --border: #597d7b;
        --border-strong: rgba(0, 0, 0, 0.22);
        --blue: #597d7b;
        --blue-dark: #3c5f5d;
        --blue-light: #ebf3f3;
        --blue-text: #3c5f5d;
        --radius-md: 8px;
        --radius-lg: 12px;
        --font: "Red Hat Display", sans-serif;
        --fs-reg: 16px;
        --fs-sm: 14px;
      }

      @media (prefers-color-scheme: dark) {
        :root {
          --bg: #1c1c1a;
          --bg-secondary: #262624;
          --bg-card: #222220;
          --bg-highlight: #0c2a45;
          --text-primary: #f0ede8;
          --text-secondary: #a8a49d;
          --text-tertiary: #6e6c67;
          --border: #597d7b;
          --border-strong: rgba(255, 255, 255, 0.2);
          --blue: #597d7b;
          --blue-dark: #3c5f5d;
          --blue-light: #0c2a45;
          --blue-text: #597d7b;
        }
      }


      .simulcontainer {
        max-width: 680px;
        margin: 0 auto;
      }

      /* Header */
      .simulheader {
        margin-bottom: 2rem;
      }

      .simulheader p {
        font-size: var(--fs-reg);
        color: var(--text-secondary);
      }

      /* Form card */
      .simulcontainer .card {
        background: var(--bg-card);
        border: 0.5px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 1.25rem;
        margin-bottom: 1rem;
      }

      .simulcontainer .form-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .simulcontainer .field-full {
        grid-column: 1 / -1;
      }

      .simulcontainer .field-group {
        display: flex!important;
        flex-direction: column!important;
        gap: 5px;
      }

      .simulcontainer .field-group label {
        font-size: var(--fs-reg);
        color: var(--text-secondary);
      }

      .simulcontainer .field-group input,
      .simulcontainer .field-group select {
        font-family: var(--font);
        font-size: var(--fs-reg);
        height: 38px;
        padding: 0 10px;
        border: 0.5px solid var(--border-strong);
        border-radius: var(--radius-md);
        background: var(--bg);
        color: var(--text-primary);
        width: 100%;
        outline: none;
        transition: border-color 0.15s;
        -webkit-appearance: none;
        appearance: none;
      }

      .simulcontainer .field-group select {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 10px center;
        padding-right: 28px;
      }

      .simulcontainer .field-group input:focus,
      .simulcontainer .field-group select:focus {
        border-color: var(--blue);
        box-shadow: 0 0 0 2px rgba(24, 95, 165, 0.12);
      }

      .simulcontainer .field-hint {
        font-size: var(--fs-sm);
        color: var(--text-tertiary);
      }

      .simulcontainer .calc-btn {
        width: 100%;
        margin-top: 18px;
        padding: 11px;
        font-family: var(--font);
        font-size: var(--fs-reg);
        font-weight: 500;
        background: var(--blue);
        color: #fff;
        border: none;
        border-radius: var(--radius-md);
        cursor: pointer;
        transition: background 0.15s;
      }

      .simulcontainer .calc-btn:hover {
        background: var(--blue-dark);
      }
      .simulcontainer .calc-btn:active {
        transform: scale(0.99);
      }

      /* Section label */
      .simulcontainer .section-label {
        font-size: var(--fs-reg);
        font-weight: 500;
        color: var(--text-tertiary);
        text-transform: uppercase;
        letter-spacing: 0.07em;
        margin: 1.5rem 0 0.6rem;
      }

      /* Recap */
      .recap-card {
        background: var(--bg-tertiary);
        border-radius: var(--radius-md);
        padding: 1rem 1.25rem;
      }

      .recap-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px 28px;
      }

      .recap-row {
        display: flex;
        flex-direction: column;
        gap: 1px;
      }
      .recap-row .rlabel {
        font-size: var(--fs-sm);
        color: var(--text-secondary);
      }
      .recap-row .rvalue {
        font-size: 1.1rem;
        font-weight: 500;
        color: var(--text-primary);
      }

      /* Metrics */
      .metrics-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 10px;
      }

      .metric-card {
        background: var(--bg-highlight);
        border-radius: var(--radius-md);
        padding: 1rem;
      }

      .metric-card.highlight {
        background: var(--bg-secondary);
      }

      .metric-label {
        font-size: var(--fs-sm);
        font-weight: bold;
        color: var(--text-secondary);
        margin-bottom: 4px;
        line-height: 1.3;
      }

      .metric-card.highlight .metric-label {
        color: var(--blue-text);
        opacity: 0.85;
      }

      .metric-value {
        font-size: 1.4rem;
        font-weight: 500;
        color: var(--text-primary);
        line-height: 1.2;
      }

      .metric-card.highlight .metric-value {
        color: var(--blue-text);
      }

      .metric-sub {
        font-size: var(--fs-sm);
        color: var(--text-tertiary);
        margin-top: 3px;
        line-height: 1.3;
      }

      .metric-card.highlight .metric-sub {
        color: var(--blue-text);
        opacity: 0.7;
      }

      .metric-note {
        font-size: var(--fs-sm);
        color: var(--blue);
        display: block;
        margin-top: 2px;
      }

      /* Table */
      .table-card {
        background: var(--bg-card);
        border: 0.5px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
      }

      .amort-table {
        width: 100%;
        border-collapse: collapse;
        font-size: var(--fs-sm);
      }

      .amort-table th {
        text-align: left;
        font-size: var(--fs-reg);
        font-weight: 500;
        color: var(--text-secondary);
        padding: 10px 14px;
        border-bottom: 0.5px solid var(--border);
        background: var(--bg-secondary);
      }

      .amort-table td {
        padding: 9px 14px;
        color: var(--text-primary);
        border-bottom: 0.5px solid var(--border);
      }

      .amort-table tr:last-child td {
        border-bottom: none;
        font-weight: 500;
        background: var(--bg-secondary);
      }

      .amort-table tbody tr:hover td {
        background: var(--bg-secondary);
      }

      /* Notice */
      .simulcontainer .notice {
        font-size: var(--fs-sm);
        color: var(--text-tertiary);
        margin-top: 1.5rem;
        border-top: 0.5px solid var(--border);
        padding-top: 1rem;
        line-height: 1.6;
      }

      /* Error */
      .simulcontainer .error-msg {
        display: none;
        background: #fcebeb;
        color: #791f1f;
        font-size: var(--fs-sm);
        padding: 10px 14px;
        border-radius: var(--radius-md);
        margin-top: 12px;
      }

      
      .results {
        display: none;
      }

      /* Results hidden by default 

      #boutons {
        margin-bottom: 50px;
        background-color: var(--bg-highlight);
        padding: 15px;
      }

      #boutons table {
        text-align: center;
      }*/

      @media (max-width: 520px) {
        .simulcontainer .form-grid {
          grid-template-columns: 1fr;
        }
        .simulcontainer .metrics-grid {
          grid-template-columns: 1fr 1fr;
        }
        .recap-grid {
          grid-template-columns: 1fr;
        }
        .simulheader h2 {
          font-size: 1.2rem;
          color: var(--blue);
        }
      }