:root{--dt-primary:#25d366;--dt-bg:#ffffff;--dt-text:#1f2937;--dt-border:#d1d5db;--dt-error:#ef4444;--dt-success:#22c55e;--dt-radius:8px;--dt-fs:15px;--dt-ip:12px;--dt-shadow:0 8px 32px rgba(0,0,0,.10)}*,*::before,*::after{box-sizing:border-box}.dt-wrap{background:var(--dt-bg);color:var(--dt-text);border-radius:var(--dt-radius);box-shadow:var(--dt-shadow);padding:32px 36px;max-width:460px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-size:var(--dt-fs)}.dt-wrap *{box-sizing:border-box}.dt-tab-nav{display:flex;border-bottom:2px solid #e5e7eb;margin-bottom:24px;gap:2px}.dt-tab-btn{background:none;border:none;border-bottom:3px solid #fff0;padding:10px 16px;cursor:pointer;font-size:.9rem;font-weight:600;color:#6b7280;margin-bottom:-2px;border-radius:6px 6px 0 0;transition:all .2s}.dt-tab-btn:hover{color:var(--dt-primary)}.dt-tab-btn.dt-active{color:var(--dt-primary);border-bottom-color:var(--dt-primary)}.dt-heading{margin:0 0 4px;font-size:1.35rem;font-weight:700;color:var(--dt-text)}.dt-sub{margin:0 0 20px;font-size:.88rem;color:#6b7280}.dt-alt-link{text-align:center;font-size:.85rem;color:#6b7280;margin-top:14px}.dt-alt-link a{color:var(--dt-primary);font-weight:600}.dt-field{margin-bottom:16px}.dt-field label{display:block;font-size:.84rem;font-weight:600;margin-bottom:5px;color:var(--dt-text)}.dt-field-inline{display:flex;align-items:center}.dt-req{color:var(--dt-error);margin-left:2px}.dt-opt{color:#9ca3af;font-size:.78rem;font-weight:400;margin-left:4px}.dt-help{font-size:.78rem;color:#9ca3af;margin:4px 0 0}.dt-input{width:100%;padding:var(--dt-ip) 14px;border:1.5px solid var(--dt-border);border-radius:var(--dt-radius);font-size:var(--dt-fs);color:var(--dt-text);background:#fafafa;transition:border-color .2s,box-shadow .2s;outline:none;font-family:inherit}.dt-input:focus{border-color:var(--dt-primary);background:#fff;box-shadow:0 0 0 3px color-mix(in srgb,var(--dt-primary) 18%,transparent)}textarea.dt-input{resize:vertical;min-height:80px}select.dt-input{appearance:none;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 fill='%236b7280' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}.dt-phone-wrap .iti{width:100%}.dt-phone-wrap .iti__selected-flag{border-right:1px solid var(--dt-border)}.dt-hint{display:flex;align-items:center;gap:5px;font-size:.78rem;color:#6b7280;margin:5px 0 0}.dt-hint svg{fill:#25d366;flex-shrink:0}.dt-radio-group{display:flex;flex-direction:column;gap:6px}.dt-radio-label,.dt-checkbox-label{display:flex;align-items:flex-start;gap:8px;font-size:.9rem;font-weight:400;cursor:pointer;line-height:1.4}.dt-radio-label input,.dt-checkbox-label input{margin-top:3px;flex-shrink:0;accent-color:var(--dt-primary)}.dt-notice{padding:10px 14px;border-radius:var(--dt-radius);margin-bottom:14px;font-size:.875rem}.dt-error{background:#fef2f2;color:var(--dt-error);border:1px solid #fecaca}.dt-success{background:#f0fff4;color:var(--dt-success);border:1px solid #86efac}.dt-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border:none;border-radius:var(--dt-radius);font-size:var(--dt-fs);font-weight:700;cursor:pointer;transition:opacity .2s,transform .1s;text-decoration:none}.dt-btn:active{transform:scale(.98)}.dt-btn:disabled{opacity:.6;cursor:not-allowed}.dt-btn-primary{background:var(--dt-primary);color:#fff;width:100%;margin-top:4px}.dt-btn-primary:hover{opacity:.9}.dt-btn-outline{background:#fff0;color:var(--dt-primary);border:2px solid var(--dt-primary)}.dt-link-btn{background:none;border:none;color:var(--dt-primary);font-size:.85rem;cursor:pointer;padding:0;font-weight:600;text-decoration:underline}.dt-spinner{width:18px;height:18px;border:2px solid rgb(255 255 255 / .3);border-top-color:#fff;border-radius:50%;animation:dt-spin .65s linear infinite;flex-shrink:0}@keyframes dt-spin{to{transform:rotate(360deg)}}.dt-otp-boxes{display:flex;gap:8px;justify-content:center;margin:20px 0}.dt-otp-digit{flex:1;max-width:52px;height:56px;text-align:center;font-size:1.4rem;font-weight:700;padding:0;border:2px solid var(--dt-border);border-radius:calc(var(--dt-radius) * .8);caret-color:var(--dt-primary)}.dt-otp-digit:focus{border-color:var(--dt-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--dt-primary) 18%,transparent)}.dt-resend{text-align:center;margin-top:14px}.dt-countdown-wrap{font-size:.84rem;color:#6b7280;margin:0}.dt-back-btn{background:none;border:none;color:#9ca3af;font-size:.84rem;cursor:pointer;padding:0;margin-bottom:12px;display:inline-flex;align-items:center;gap:4px}.dt-back-btn:hover{color:var(--dt-primary)}.dt-step-success{text-align:center;padding:10px 0 20px}.dt-success-icon{width:64px;height:64px;border-radius:50%;background:var(--dt-primary);color:#fff;font-size:1.8rem;line-height:64px;margin:0 auto 16px}.dt-already-in{text-align:center;padding:16px 0}.dt-already-in p{margin-bottom:14px}@media(max-width:480px){.dt-wrap{padding:22px 16px}.dt-otp-digit{max-width:40px;height:48px;font-size:1.2rem}.dt-otp-boxes{gap:6px}}