/* ===== 潔癖貓家事清潔 — 註冊頁樣式 ===== */


*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#1a3a5c;--primary-light:#2563a8;--primary-pale:#e8f0fa;
  --accent:#c8872a;--surface:#fff;--surface-2:#f5f6f8;--surface-3:#eef0f4;
  --text:#1a1e2a;--text-2:#4a5068;--text-3:#8890a8;--border:#dde1ec;
  --danger:#c0392b;--success:#1a7a4a;
  --shadow-md:0 4px 20px rgba(20,40,80,.10);--shadow-lg:0 12px 40px rgba(20,40,80,.14);
  --radius-sm:6px;--radius-md:10px;--radius-lg:16px;
  --font-sans:'Noto Sans TC',sans-serif;--font-serif:'Noto Serif TC',serif;
}
html{font-size:16px}
body{font-family:var(--font-sans);color:var(--text);background:var(--surface-3);min-height:100vh;display:flex;flex-direction:column}

.top-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--primary)}
.logo-icon{width:32px;height:32px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center}
.logo-icon svg{width:18px;height:18px;fill:#fff}
.back-link{font-size:13px;color:var(--text-2);text-decoration:none;display:flex;align-items:center;gap:5px;transition:color .18s}
.back-link:hover{color:var(--primary)}
.back-link svg{width:15px;height:15px;fill:currentColor}

.main{flex:1;display:flex;align-items:flex-start;justify-content:center;padding:48px 20px}
.reg-container{width:100%;max-width:520px}

.page-title{font-family:var(--font-serif);font-size:26px;font-weight:600;color:var(--primary);margin-bottom:6px}
.page-sub{font-size:14px;color:var(--text-2);margin-bottom:28px}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-md)}

.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:5px;letter-spacing:.3px}
.form-label .req{color:var(--accent)}
.form-input{width:100%;padding:11px 14px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;font-family:var(--font-sans);transition:all .2s}
.form-input:focus{outline:none;border-color:var(--primary-light);background:var(--surface);box-shadow:0 0 0 3px rgba(37,99,168,.1)}
.form-input::placeholder{color:var(--text-3)}
.form-input.error{border-color:var(--danger)}
.field-hint{font-size:12px;color:var(--text-3);margin-top:4px}
.field-error{font-size:12px;color:var(--danger);margin-top:4px;display:none}
.form-input.error + .field-error{display:block}

/* Password strength */
.pwd-strength{display:flex;gap:4px;margin-top:8px}
.pwd-bar{height:4px;flex:1;background:var(--border);border-radius:2px;transition:background .3s}
.pwd-bar.weak{background:#e74c3c}
.pwd-bar.fair{background:#f39c12}
.pwd-bar.strong{background:var(--success)}
.pwd-label{font-size:11px;color:var(--text-3);margin-top:5px}

/* Password requirements checklist */
.pwd-checks{margin-top:10px;display:grid;grid-template-columns:1fr 1fr;gap:4px}
.pwd-check{font-size:12px;color:var(--text-3);display:flex;align-items:center;gap:5px;transition:color .2s}
.pwd-check.met{color:var(--success)}
.pwd-check::before{content:'○';font-size:10px;flex-shrink:0}
.pwd-check.met::before{content:'●'}

.agree-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:22px}
.agree-row input{accent-color:var(--primary);margin-top:2px;flex-shrink:0;width:16px;height:16px;cursor:pointer}
.agree-row label{font-size:13px;color:var(--text-2);line-height:1.7;cursor:pointer}
.agree-row a{color:var(--primary-light);text-decoration:none}
.agree-row a:hover{text-decoration:underline}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .2s;text-decoration:none;width:100%}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light)}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.loading .spinner{display:inline-block}.loading .btn-text{display:none}

.login-link{text-align:center;margin-top:18px;font-size:13px;color:var(--text-2)}
.login-link a{color:var(--primary-light);text-decoration:none;font-weight:500}
.login-link a:hover{text-decoration:underline}

/* Success state */
.success-card{display:none;text-align:center;padding:48px 36px}
.success-icon{width:64px;height:64px;background:var(--success);border-radius:50%;margin:0 auto 20px;display:flex;align-items:center;justify-content:center}
.success-icon svg{width:32px;height:32px;fill:#fff}
.success-card h2{font-family:var(--font-serif);font-size:22px;color:var(--primary);margin-bottom:10px}
.success-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:24px}

.section-divider{border:none;border-top:1px solid var(--border);margin:22px 0}

.toast-wrap{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:999;pointer-events:none}
.toast{background:var(--text);color:#fff;padding:12px 22px;border-radius:100px;font-size:14px;box-shadow:var(--shadow-lg);opacity:0;transform:translateY(8px);transition:all .3s;white-space:nowrap}
.toast.show{opacity:1;transform:translateY(0)}
.toast.success{background:var(--success)}.toast.error{background:var(--danger)}

.page-foot{text-align:center;padding:20px;font-size:12px;color:var(--text-3)}

@media(max-width:768px){
  .top-bar{padding:0 16px}
  .logo{font-size:16px}
  .back-link span{display:none}
  .main{padding:32px 16px}
  .reg-container{max-width:100%}
  .page-title{font-size:22px}
}
@media(max-width:540px){
  .top-bar{height:52px}
  .card{padding:22px 16px}
  .form-row{grid-template-columns:1fr}
  .pwd-checks{grid-template-columns:1fr}
  .main{padding:20px 12px}
  .btn{min-height:44px}
  .form-input{font-size:16px}  /* 防止 iOS 自動縮放 */
  .agree-row label{font-size:12px}
  .success-card{padding:32px 20px}
  .success-card p{font-size:13px}
}