/* ===== 潔癖貓家事清潔 — 登入頁樣式 ===== */


*,*::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:center;justify-content:center;padding:48px 20px}
.login-container{width:100%;max-width:420px}
.switcher{display:flex;background:var(--surface-3);border:1px solid var(--border);border-radius:var(--radius-md);padding:4px;margin-bottom:20px;gap:4px}
.sw-btn{flex:1;padding:10px;border:none;border-radius:var(--radius-sm);font-family:var(--font-sans);font-size:14px;font-weight:500;color:var(--text-2);cursor:pointer;background:transparent;transition:all .2s}
.sw-btn.active{background:var(--surface);color:var(--primary);box-shadow:0 1px 4px rgba(20,40,80,.1)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-md)}
.card-head{margin-bottom:26px}
.card-head h1{font-family:var(--font-serif);font-size:22px;font-weight:600;color:var(--primary);margin-bottom:6px}
.card-head p{font-size:14px;color:var(--text-2)}
.form-group{margin-bottom:15px}
.form-label{display:block;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:5px;letter-spacing:.3px}
.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)}
.row-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.remember{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);cursor:pointer}
.remember input{accent-color:var(--primary)}
.forgot-btn{font-size:13px;color:var(--primary-light);cursor:pointer;background:none;border:none;font-family:var(--font-sans);padding:0}
.forgot-btn:hover{text-decoration:underline}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 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)}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--border)}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-pale)}
.divider{text-align:center;font-size:12px;color:var(--text-3);margin:16px 0;position:relative}
.divider::before,.divider::after{content:'';position:absolute;top:50%;width:44%;height:1px;background:var(--border)}
.divider::before{left:0}.divider::after{right:0}
.staff-note{background:var(--surface-2);border-left:3px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:10px 14px;font-size:13px;color:var(--text-2);margin-bottom:16px;line-height:1.6}
.staff-note strong{color:var(--primary);display:block;margin-bottom:2px}
.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}
.foot-note{text-align:center;margin-top:16px;font-size:13px;color:var(--text-2)}
.foot-note a{color:var(--primary-light);text-decoration:none;font-weight:500}
.foot-note a:hover{text-decoration:underline}
.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}
  .login-container{max-width:100%}
}
@media(max-width:480px){
  .top-bar{height:52px}
  .logo-icon{width:28px;height:28px}
  .card{padding:22px 16px}
  .main{padding:20px 12px;align-items:flex-start}
  .switcher{margin-bottom:14px}
  .btn{min-height:44px}
  .form-input{font-size:16px} /* 防止 iOS 自動縮放 */
  .sw-btn{min-height:44px;font-size:13px}
}