*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f5f7;--surface: #ffffff;--border: #e5e5e7;--text: #1d1d1f;--text-secondary: #6e6e73;--primary: #0071e3;--primary-hover: #0060c0;--danger: #e53e3e;--success: #22c55e;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-lg: 0 4px 16px rgba(0,0,0,.1);--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif}[data-theme=dark]{--bg: #1a1a1c;--surface: #2c2c2e;--border: #3a3a3c;--text: #f5f5f7;--text-secondary: #98989d;--primary: #0a84ff;--primary-hover: #409cff;--danger: #ff453a;--success: #30d158;--shadow: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);--shadow-lg: 0 4px 16px rgba(0,0,0,.4)}body{font-family:var(--font);background:var(--bg);background-image:linear-gradient(135deg,rgba(0,113,227,.03) 0%,transparent 50%,rgba(168,85,247,.03) 100%);background-attachment:fixed;color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh}[data-theme=dark] body{background-image:linear-gradient(135deg,rgba(10,132,255,.04) 0%,transparent 50%,rgba(168,85,247,.04) 100%)}.theme-toggle{background:none;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;padding:4px 8px;font-size:16px;line-height:1;transition:background .15s}.theme-toggle:hover{background:var(--bg)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;font-family:var(--font);cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg);color:var(--text)}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}.auth-card{background:var(--surface);border-radius:var(--radius);padding:40px;width:100%;max-width:400px;box-shadow:var(--shadow-lg)}.auth-brand{margin-bottom:4px}.auth-brand h1{font-size:28px;font-weight:700;letter-spacing:-.5px}.auth-subtitle{color:var(--text-secondary);margin-bottom:24px}.auth-card form{display:flex;flex-direction:column;gap:16px}.auth-card label{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:500;color:var(--text-secondary)}.auth-card input{padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:15px;font-family:var(--font);outline:none;transition:border-color .15s;background:var(--surface);color:var(--text)}.auth-card input:focus{border-color:var(--primary)}.auth-card input:disabled{opacity:.6}.auth-card .btn-primary{width:100%;padding:10px;margin-top:8px}.auth-error{background:rgba(229,62,62,.1);color:var(--danger);padding:10px 12px;border-radius:var(--radius-sm);font-size:14px}.auth-success{background:rgba(34,197,94,.1);color:var(--success);padding:10px 12px;border-radius:var(--radius-sm);font-size:14px}.auth-link{text-align:center;margin-top:16px;font-size:14px;color:var(--text-secondary)}.auth-link a{color:var(--primary);text-decoration:none}.auth-link a:hover{text-decoration:underline}.password-rules{list-style:none;font-size:13px;display:flex;flex-direction:column;gap:2px}.password-rules .rule-pass{color:var(--success)}.password-rules .rule-fail{color:var(--text-secondary)}.verify-content{display:flex;flex-direction:column;gap:12px}.verify-message{font-size:15px;color:var(--text-secondary);line-height:1.5;margin-bottom:8px}.verify-message strong{color:var(--text)}.verify-btn{width:100%;padding:10px}.page-loading{display:flex;align-items:center;justify-content:center;min-height:200px;font-size:15px;color:var(--text-secondary)}