:root {
            --primary-color: #4338ca; --primary-hover: #3730a3; --accent-color: #6366f1;
            --bg-color: #f1f5f9; --card-bg: #ffffff; --text-main: #1e293b; --text-muted: #64748b;
            --border-radius: 12px;
        }
        body { background-color: var(--bg-color); color: var(--text-main); font-family: 'Inter', sans-serif; min-height: 100vh; display: flex; flex-direction: column; }
        .app-header { padding: 0.75rem 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(226, 232, 240, 0.8); z-index: 1000; }
        .header-brand { font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; gap: 0.5rem; }
        .brand-icon { width: 32px; height: 32px; background: rgba(67, 56, 202, 0.1); color: var(--primary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
        .main-container { max-width: 600px; margin: 0 auto; flex-grow: 1; padding: 2rem 1rem; width: 100%; display: flex; flex-direction: column; justify-content: center; }
        .onboarding-card { background: var(--card-bg); border-radius: var(--border-radius); box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); padding: 2rem; }
        .stepper-container { display: flex; justify-content: center; margin-bottom: 2rem; gap: 0.5rem; }
        .step-dot { width: 10px; height: 10px; border-radius: 50%; background-color: #e2e8f0; transition: 0.3s; }
        .step-dot.active { background-color: var(--primary-color); transform: scale(1.2); }
        .step-dot.completed { background-color: var(--accent-color); }
        .form-floating > .form-control, .form-floating > .form-select { border-radius: 8px; border: 1px solid #e2e8f0; }
        .form-floating > .form-control:focus, .form-floating > .form-select:focus { border-color: var(--accent-color); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1); }
        .code-input { letter-spacing: 3px; font-weight: 600; text-transform: uppercase; text-align: center; font-family: monospace; }
        .view-section { display: none; }
        .view-section.active { display: block; animation: slideUp 0.4s ease-out; }
        @keyframes slideUp { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
        #loader-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(255, 255, 255, 0.8); z-index: 2000; display: none; align-items: center; justify-content: center; }
        .app-footer { font-size: 0.8rem; color: var(--text-muted); text-align: center; padding: 1.5rem; border-top: 1px solid #e2e8f0; background: white; margin-top: auto; }
        .btn-primary-custom { background-color: var(--primary-color); border: none; padding: 12px; border-radius: 8px; font-weight: 600; color: white; width: 100%; }
        .btn-primary-custom:hover { background-color: var(--primary-hover); color: white; }
        .btn-outline-custom { border: 1px solid #cbd5e1; color: var(--text-muted); background: transparent; padding: 12px; border-radius: 8px; width: 100%; }
        .btn-outline-custom:hover { background-color: #f8fafc; border-color: #94a3b8; }
        .otp-link { font-size: 0.85rem; color: var(--primary-color); text-decoration: none; font-weight: 600; cursor: pointer; }
        .otp-link.disabled { color: #ccc; cursor: not-allowed; }
        .autocomplete-suggestions { border: 1px solid #e2e8f0; border-top: none; background: #fff; position: absolute; z-index: 999; width: 100%; max-height: 200px; overflow-y: auto; }
        .autocomplete-suggestion { padding: 10px; cursor: pointer; }
        .autocomplete-suggestion:hover { background: #f1f5f9; }