:root {
    --bg: #F7F4EF;
    --surface: #FFFFFF;
    --ink: #1A1714;
    --ink-soft: #6B6560;
    --accent: #C84B2F;
    --accent-light: #F5E8E4;
    --border: #E2DDD8;
    --step-done: #2D6A4F;
  }

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

  body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'DM Sans', sans-serif;
    font-weight: 300;
    min-height: 100vh;
    padding: 0 0 80px;
  }

  /* HEADER */
  header {
    background: var(--ink);
    color: white;
    padding: 48px 40px 40px;
    position: relative;
    overflow: hidden;
  }

  header::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.15;
  }

  header .tag {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
    font-weight: 500;
  }

  header h1 {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(28px, 5vw, 48px);
    line-height: 1.1;
    margin-bottom: 16px;
  }

  header h1 em {
    font-style: italic;
    color: #C8B89A;
  }

  header p {
    color: #A09890;
    font-size: 15px;
    max-width: 500px;
    line-height: 1.7;
  }

  /* PROGRESS */
  .progress-bar {
    background: var(--ink);
    padding: 0 40px 24px;
    display: flex;
    gap: 8px;
    align-items: center;
  }

  .progress-bar .step {
    flex: 1;
    height: 3px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    transition: background 0.4s;
    cursor: pointer;
  }

  .progress-bar .step.active {
    background: var(--accent);
  }

  .progress-bar .step.done {
    background: #2D6A4F;
  }

  /* MAIN */
  main {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
  }

  /* SECTIONS */
  .section {
    display: none;
    animation: fadeUp 0.4s ease;
  }

  .section.visible {
    display: block;
  }

  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(16px);
    }

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

  .section-header {
    padding: 40px 0 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
  }

  .section-number {
    font-size: 11px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
  }

  .section-title {
    font-family: 'DM Serif Display', serif;
    font-size: 28px;
    line-height: 1.2;
  }

  .section-desc {
    color: var(--ink-soft);
    margin-top: 8px;
    font-size: 14px;
    line-height: 1.7;
  }

  /* FIELDS */
  .field {
    margin-bottom: 28px;
  }

  label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
    margin-bottom: 8px;
    color: var(--ink);
  }

  label .req {
    color: var(--accent);
    margin-left: 2px;
  }

  label .hint {
    font-weight: 300;
    color: var(--ink-soft);
    font-size: 12px;
    margin-left: 6px;
  }

  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="url"],
  select,
  textarea {
    width: 100%;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 300;
    color: var(--ink);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    appearance: none;
  }

  input:focus,
  select:focus,
  textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
  }

  textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
  }

  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6560' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
  }

  /* CHECKBOX / RADIO GROUPS */
  .check-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
  }

  .check-group.cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .check-item {
    position: relative;
  }

  .check-item input {
    display: none;
  }

  .check-item label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 300;
    transition: all 0.2s;
    margin: 0;
  }

  .check-item label::before {
    content: '';
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    border: 1.5px solid var(--border);
    border-radius: 4px;
    transition: all 0.2s;
  }

  .check-item input[type="radio"]+label::before {
    border-radius: 50%;
  }

  .check-item input:checked+label {
    border-color: var(--accent);
    background: var(--accent-light);
    color: var(--ink);
  }

  .check-item input:checked+label::before {
    background: var(--accent);
    border-color: var(--accent);
  }

  /* COLOR PICKER */
  .color-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }

  .color-swatch {
    position: relative;
  }

  .color-swatch input[type="checkbox"] {
    display: none;
  }

  .color-swatch label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin: 0;
    font-size: 11px;
    color: var(--ink-soft);
    font-weight: 400;
  }

  .color-swatch .dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    transition: border-color 0.2s, transform 0.2s;
  }

  .color-swatch input:checked+label .dot {
    border-color: var(--accent);
    transform: scale(1.15);
  }

  /* FILE UPLOAD */
  .upload-zone {
    border: 2px dashed var(--border);
    border-radius: 10px;
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    background: var(--surface);
  }

  .upload-zone:hover {
    border-color: var(--accent);
    background: var(--accent-light);
  }

  .upload-zone input {
    display: none;
  }

  .upload-zone .icon {
    font-size: 28px;
    margin-bottom: 8px;
  }

  .upload-zone p {
    font-size: 13px;
    color: var(--ink-soft);
  }

  .upload-zone span {
    color: var(--accent);
    font-weight: 500;
  }

  #file-list {
    margin-top: 12px;
    font-size: 12px;
    color: var(--ink-soft);
  }

  /* DIVIDER */
  .divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
  }

  /* NAVIGATION */
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }

  .btn {
    padding: 13px 28px;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    letter-spacing: 0.2px;
  }

  .btn-primary {
    background: var(--accent);
    color: white;
  }

  .btn-primary:hover {
    background: #A83A20;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(200, 75, 47, 0.3);
  }

  .btn-ghost {
    background: transparent;
    color: var(--ink-soft);
    border: 1.5px solid var(--border);
  }

  .btn-ghost:hover {
    border-color: var(--ink);
    color: var(--ink);
  }

  .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
  }

  /* SUCCESS */
  #success {
    display: none;
    text-align: center;
    padding: 80px 20px;
    animation: fadeUp 0.5s ease;
  }

  #success .icon {
    font-size: 56px;
    margin-bottom: 24px;
  }

  #success h2 {
    font-family: 'DM Serif Display', serif;
    font-size: 32px;
    margin-bottom: 16px;
  }

  #success p {
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.7;
    max-width: 420px;
    margin: 0 auto;
  }

  /* RESPONSIVE */
  @media (max-width: 600px) {
    header {
      padding: 36px 20px 32px;
    }

    .progress-bar {
      padding: 0 20px 20px;
    }

    .check-group {
      grid-template-columns: 1fr;
    }

    .check-group.cols-2 {
      grid-template-columns: 1fr;
    }
  }