:root {
      --primary: #1a1a1a;
      --primary-light: #2d2d2d;
      --accent: #0066cc;
      --accent-hover: #0052a3;
      --success: #059669;
      --error: #dc2626;
      --bg: #fafafa;
      --card: #ffffff;
      --text: #171717;
      --text-muted: #737373;
      --border: #e5e5e5;
      --border-hover: #d4d4d4;
      --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    }

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

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* Header */
    .header {
      background: var(--card);
      border-bottom: 1px solid var(--border);
      padding: 20px 0;
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(10px);
      background: rgba(255, 255, 255, 0.95);
    }

    .header-content {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .header-left {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .company-logo-img {
      width: 52px;
      height: 52px;
      border-radius: 10px;
      object-fit: cover;
      border: 1px solid var(--border);
      background: var(--card);
    }

    .company-info {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .company-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: -0.3px;
    }

    .company-tagline {
      font-size: 12px;
      color: var(--text-muted);
      letter-spacing: -0.1px;
    }

    .back-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 18px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--card);
      color: var(--text);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      transition: all 0.2s ease;
      letter-spacing: -0.2px;
    }

    .back-btn:hover {
      background: var(--bg);
      border-color: var(--border-hover);
      transform: translateX(-2px);
    }

    .back-icon {
      font-size: 16px;
    }

    /* Main Content */
    .main {
      max-width: 720px;
      margin: 60px auto 80px;
      padding: 0 32px;
    }

    .page-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
      letter-spacing: -0.8px;
    }

    .page-description {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 48px;
      line-height: 1.7;
    }

    .form-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 48px;
      box-shadow: var(--shadow);
    }

    /* Form Elements */
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }

    .form-group {
      margin-bottom: 24px;
    }

    .form-group.full {
      grid-column: 1 / -1;
    }

    label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 8px;
      letter-spacing: -0.1px;
    }

    .required {
      color: var(--error);
    }

    input[type="text"],
    input[type="email"],
    textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--card);
      font-size: 15px;
      color: var(--text);
      font-family: inherit;
      transition: all 0.2s ease;
    }

    input:hover,
    textarea:hover {
      border-color: var(--border-hover);
    }

    input:focus,
    textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.05);
    }

    textarea {
      min-height: 110px;
      resize: vertical;
    }

    .input-hint {
      margin-top: 6px;
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Buttons */
    .form-actions {
      display: flex;
      gap: 12px;
      margin-top: 32px;
      padding-top: 32px;
      border-top: 1px solid var(--border);
    }

    .btn {
      padding: 12px 24px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      letter-spacing: -0.2px;
    }

    .btn-primary {
      background: var(--primary);
      color: white;
      border: 1px solid var(--primary);
      flex: 1;
    }

    .btn-primary:hover:not(:disabled) {
      background: var(--primary-light);
      border-color: var(--primary-light);
      transform: translateY(-1px);
      box-shadow: var(--shadow);
    }

    .btn-primary:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .btn-secondary {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--border);
    }

    .btn-secondary:hover {
      background: var(--bg);
      border-color: var(--border-hover);
    }

    /* Progress Bar */
    .progress-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: transparent;
      z-index: 9999;
      display: none;
    }

    .progress-bar {
      height: 100%;
      background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
      width: 0%;
      transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      box-shadow: 0 0 10px rgba(26, 26, 26, 0.3);
    }

    /* Toast Notification - Corporate Style */
    .toast-container {
      position: fixed;
      top: 84px;
      right: 24px;
      z-index: 10000;
      display: flex;
      flex-direction: column;
      gap: 12px;
      pointer-events: none;
    }

    .toast {
      min-width: 420px;
      max-width: 480px;
      background: var(--card);
      border: none;
      border-radius: 14px;
      box-shadow: 0 6px 24px rgba(0,0,0,0.12);
      padding: 0;
      transform: translateX(520px) scale(0.95);
      opacity: 0;
      transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
      pointer-events: auto;
      overflow: hidden;
    }

    .toast.show {
      transform: translateX(0) scale(1);
      opacity: 1;
    }

    .toast-accent {
      display: none;
    }

    .toast-body {
      padding: 18px 20px;
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .toast-icon-wrapper {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 16px;
      font-weight: 600;
      background: var(--bg);
      border: 1px solid var(--border);
    }

    .toast.success .toast-icon-wrapper {
      color: var(--success);
      background: rgba(5,150,105,0.08);
      border-color: rgba(5,150,105,0.25);
    }

    .toast.error .toast-icon-wrapper {
      color: var(--error);
      background: rgba(220,38,38,0.08);
      border-color: rgba(220,38,38,0.25);
    }

    .toast.info .toast-icon-wrapper {
      color: var(--primary);
      background: rgba(26,26,26,0.06);
      border-color: rgba(26,26,26,0.15);
    }

    .toast-content {
      flex: 1;
      padding-top: 2px;
    }

    .toast-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 6px;
      letter-spacing: -0.3px;
    }

    .toast-message {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
      letter-spacing: -0.1px;
    }

    .toast-close {
      background: none;
      border: none;
      color: var(--text-muted);
      cursor: pointer;
      font-size: 20px;
      padding: 0;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 6px;
      transition: all 0.2s;
      flex-shrink: 0;
    }

    .toast-close:hover {
      color: var(--text);
      background: var(--bg);
    }

    .toast-progress {
      display: none;
    }

    /* Loading Spinner */
    .spinner {
      width: 16px;
      height: 16px;
      border: 2px solid rgba(255, 255, 255, 0.3);
      border-top-color: white;
      border-radius: 50%;
      animation: spin 0.6s linear infinite;
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* Footer */
    .footer {
      max-width: 1200px;
      margin: 0 auto;
      padding: 32px;
      text-align: center;
      color: var(--text-muted);
      font-size: 13px;
      border-top: 1px solid var(--border);
    }

    /* Responsive */
    @media (max-width: 768px) {
      .header-content {
        padding: 0 20px;
      }

      .company-logo-img {
        width: 44px;
        height: 44px;
      }

      .company-name {
        font-size: 14px;
      }

      .company-tagline {
        font-size: 11px;
      }

      .back-btn {
        padding: 8px 14px;
        font-size: 13px;
      }

      .back-btn span {
        display: none;
      }

      .main {
        margin: 40px auto 48px;
        padding: 0 20px;
      }

      .page-title {
        font-size: 26px;
      }

      .page-description {
        font-size: 15px;
        margin-bottom: 32px;
      }

      .form-card {
        padding: 28px 20px;
      }

      .form-row {
        grid-template-columns: 1fr;
        gap: 0;
      }

      .form-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .toast-container {
        top: 72px;
        right: 16px;
        left: 16px;
      }

      .toast {
        min-width: auto;
        max-width: none;
        transform: translateY(-100px) scale(0.95);
      }

      .toast.show {
        transform: translateY(0) scale(1);
      }

      .toast-body {
        padding: 16px 18px;
      }

      .toast-icon-wrapper {
        width: 36px;
        height: 36px;
        font-size: 16px;
      }

      .footer {
        padding: 32px 20px;
      }
    }