@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100%;font-family:'Inter',sans-serif;background:#f5f6f8;color:#212529}
body{font-size:14px}
.admin-nav{position:sticky;top:0;z-index:1030;width:100%;background:#fff;border-bottom:1px solid #e5e7eb;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.admin-nav-inner{display:flex;justify-content:center;align-items:center;max-width:1200px;margin:0 auto;padding:0 16px}
.admin-nav-link{display:flex;align-items:center;gap:8px;padding:10px 24px;color:#555;text-decoration:none;font-weight:500;border-bottom:2px solid transparent;transition:.15s}
.admin-nav-link:hover{color:#111;background:#f8f9fa}
.admin-nav-link.active{color:#0d6efd;border-bottom-color:#0d6efd}
.admin-nav-link i{font-size:14px}
.admin-main{width:100%;max-width:1200px;margin:0 auto;padding:24px 16px}
.card{border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.card-header{background:#fff;border-bottom:1px solid #e5e7eb;font-weight:600}
.form-label{font-weight:500;margin-bottom:6px}
.form-control,.form-select{border-color:#d9dde3;border-radius:6px}
.form-control:focus,.form-select:focus{box-shadow:0 0 0 .2rem rgba(13,110,253,.1)}
.btn{border-radius:6px;font-weight:500}
.table{vertical-align:middle}
@media(max-width:576px){
.admin-nav-inner{justify-content:stretch;padding:0}
.admin-nav-link{flex:1;justify-content:center;padding:15px 8px;font-size:12px;gap:5px}
.admin-main{padding:16px 12px}
}
.form-group{margin-bottom:16px}
.form-label{display:block;margin-bottom:6px;font-size:13px;font-weight:600;color:#374151}
.form-control,.form-select,.form-textarea{width:100%;padding:9px 11px;border:1px solid #d9dde3;border-radius:6px;background:#fff;color:#212529;font-family:inherit;font-size:14px;transition:border-color .15s,box-shadow .15s}
.form-control:focus,.form-select:focus,.form-textarea:focus{outline:0;border-color:#86b7fe;box-shadow:0 0 0 3px rgba(13,110,253,.08)}
.form-textarea{min-height:110px;resize:vertical}
.form-help{margin-top:5px;font-size:12px;color:#6b7280}
.form-error{margin-top:5px;font-size:12px;color:#dc3545}
.form-control.is-error,.form-select.is-error,.form-textarea.is-error{border-color:#dc3545}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-row-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.form-actions{display:flex;align-items:center;gap:10px;margin-top:20px}
.form-save{position:relative}
.form-save.is-loading{pointer-events:none;opacity:.7}
.form-save .form-spinner{display:none}
.form-save.is-loading .form-spinner{display:inline-block}
.form-save.is-loading .form-save-text{display:none}
.form-message{display:none;padding:10px 12px;border-radius:6px;font-size:13px;margin-bottom:16px}
.form-message.success{display:block;background:#eaf7ee;color:#18733a}
.form-message.error{display:block;background:#fdecec;color:#b42318}
.form-switch{display:flex;align-items:center;gap:8px}
.form-switch input{width:18px;height:18px}
@media(max-width:768px){.form-row,.form-row-3{grid-template-columns:1fr}}
*{box-sizing:border-box}
body.admin-login{margin:0;font-family:Inter,sans-serif;background:#f5f7fa;color:#111827}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{width:100%;max-width:400px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.06);padding:32px}
.login-header{text-align:center;margin-bottom:28px}
.login-icon{width:52px;height:52px;margin:0 auto 16px;background:#eff6ff;color:#2563eb;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px}
.login-header h1{margin:0;font-size:22px;font-weight:600;color:#111827}
.login-header p{margin:7px 0 0;color:#6b7280;font-size:14px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;font-weight:500;color:#374151;margin-bottom:7px}
.input-wrap{position:relative}
.input-wrap>i{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:#9ca3af;font-size:14px}
.input-wrap input{width:100%;height:44px;border:1px solid #d1d5db;border-radius:7px;padding:0 42px;font-size:14px;font-family:inherit;outline:none;transition:.15s}
.input-wrap input:focus{border-color:#2563eb;box-shadow:0 0 0 2px rgba(37,99,235,.12)}
.password-toggle{position:absolute;right:0;top:0;width:44px;height:44px;border:0;background:none;color:#9ca3af;cursor:pointer}
.login-button{width:100%;height:44px;border:0;border-radius:7px;background:#2563eb;color:#fff;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:.15s}
.login-button:hover{background:#1d4ed8}
.login-button:disabled{opacity:.7;cursor:not-allowed}
.login-spinner{display:none}
.login-message{display:none;padding:10px 12px;border-radius:6px;font-size:13px;margin-bottom:18px}
.login-message.show{display:block}
.login-message.error{background:#fef2f2;color:#b91c1c}
.login-message.success{background:#f0fdf4;color:#15803d}
@media(max-width:480px){.login-page{padding:16px}.login-card{padding:24px}}