:root{
  --slate:#1E2A32; --slate-mid:#243642; --teal:#0F9B8E; --teal-lt:#14B8A9;
  --teal-pale:#E6F5F3; --paper:#F4F6F7; --paper-dk:#E8ECED;
  --ink:#1A2126; --ink-soft:#4A555C; --ink-pale:#8A97A0; --white:#FFFFFF;
  --border:#DCE1E3; --success:#1F9D63; --danger:#C0392B; --sidebar-w:250px;
  --radius:6px; --shadow:0 2px 12px rgba(30,42,50,.08); --shadow-lg:0 8px 32px rgba(30,42,50,.16);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:15px;}
body{font-family:'Inter',Arial,sans-serif;background:var(--paper);color:var(--ink);min-height:100vh;}
a{color:inherit;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:14px;}

/* ---------- Login ---------- */
#login-view{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--slate),var(--slate-mid));}
.login-card{background:var(--white);width:380px;max-width:92vw;padding:36px 32px;border-radius:var(--radius);box-shadow:var(--shadow-lg);}
.login-brand{display:flex;flex-direction:column;align-items:center;gap:8px;margin-bottom:24px;}
.login-brand .brand-icon{width:48px;height:48px;background:var(--teal);border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:'Sora',sans-serif;font-weight:700;font-size:22px;color:var(--white);}
.login-brand h1{font-family:'Sora',sans-serif;font-weight:700;font-size:22px;color:var(--slate);}
.login-brand p{font-size:12px;color:var(--ink-pale);letter-spacing:.06em;text-transform:uppercase;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-soft);margin-bottom:6px;}
.field input,.field textarea,.field select{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;background:var(--white);color:var(--ink);transition:border-color .15s;}
.field textarea{resize:vertical;min-height:60px;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--teal);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:6px;border:1px solid transparent;font-size:13.5px;font-weight:600;transition:all .15s;}
.btn-primary{background:var(--slate);color:var(--white);}
.btn-primary:hover{background:var(--slate-mid);}
.btn-gold{background:var(--teal);color:var(--white);}
.btn-gold:hover{background:var(--teal-lt);}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--ink-soft);}
.btn-ghost:hover{background:var(--paper-dk);}
.btn-danger{background:transparent;border-color:var(--danger);color:var(--danger);}
.btn-danger:hover{background:var(--danger);color:var(--white);}
.btn-sm{padding:6px 12px;font-size:12.5px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.error-msg{background:#FBEAEA;color:var(--danger);padding:9px 12px;border-radius:6px;font-size:13px;margin-bottom:14px;}
.hint{font-size:11.5px;color:var(--ink-pale);margin-top:12px;text-align:center;}

/* ---------- Shell ---------- */
#app-view{display:flex;flex-direction:column;height:100vh;}
#topbar{background:var(--slate);color:var(--white);display:flex;align-items:center;justify-content:space-between;padding:0 22px;height:56px;flex-shrink:0;box-shadow:0 2px 8px rgba(0,0,0,.25);z-index:10;}
.topbar-brand{display:flex;align-items:center;gap:10px;}
.brand-icon{width:34px;height:34px;background:var(--teal);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:'Sora',sans-serif;font-weight:700;font-size:16px;color:var(--white);}
.brand-name{font-family:'Sora',sans-serif;font-size:18px;font-weight:700;}
.brand-sub{font-size:10.5px;color:rgba(255,255,255,.5);letter-spacing:.08em;}
.topbar-actions{display:flex;align-items:center;gap:14px;}
.user-chip{font-size:12.5px;color:rgba(255,255,255,.85);}
.user-chip b{color:var(--teal-lt);}
#main-body{flex:1;display:flex;overflow:hidden;}
#sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--slate-mid);color:rgba(255,255,255,.85);overflow-y:auto;padding:16px 0;}
.nav-section-label{font-size:10.5px;letter-spacing:.1em;color:rgba(255,255,255,.35);padding:14px 20px 6px;text-transform:uppercase;}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 20px;cursor:pointer;font-size:13.5px;transition:background .15s;}
.nav-item:hover{background:rgba(255,255,255,.06);}
.nav-item.active{background:rgba(15,155,142,.20);color:var(--teal-lt);border-right:3px solid var(--teal);}
#content{flex:1;overflow-y:auto;padding:26px 32px;background:var(--paper);}

.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px;}
.page-header h2{font-family:'Sora',sans-serif;font-weight:700;font-size:23px;color:var(--slate);}
.page-header p{color:var(--ink-pale);font-size:13px;margin-top:2px;}

.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:22px;}
.stat-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;}
.stat-card .num{font-family:'Sora',sans-serif;font-size:27px;color:var(--slate);font-weight:700;}
.stat-card .label{font-size:12px;color:var(--ink-pale);margin-top:2px;}

table{width:100%;border-collapse:collapse;font-size:13px;}
thead th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-pale);padding:8px 10px;border-bottom:2px solid var(--border);}
tbody td{padding:10px;border-bottom:1px solid var(--paper-dk);vertical-align:middle;}
tbody tr:hover{background:var(--paper-dk);}
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:600;}
.badge-admin{background:#E6F5F3;color:#0B7268;}
.badge-user{background:#E5EEF5;color:#2E6B9E;}
.badge-active{background:#DFF3E7;color:var(--success);}
.badge-inactive{background:#F5DCDC;color:var(--danger);}
.badge-sent{background:#DFF3E7;color:var(--success);}
.badge-failed{background:#F5DCDC;color:var(--danger);}
.badge-stub{background:var(--paper-dk);color:var(--ink-soft);}

/* ---------- Generate view ---------- */
.gen-layout{display:flex;gap:20px;align-items:flex-start;}
.tpl-list{width:290px;flex-shrink:0;display:flex;flex-direction:column;gap:10px;}
.tpl-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;cursor:pointer;transition:all .15s;}
.tpl-card:hover{border-color:var(--teal-lt);}
.tpl-card.active{border-color:var(--teal);background:var(--teal-pale);box-shadow:var(--shadow);}
.tpl-card .cat{font-size:10.5px;color:var(--teal);text-transform:uppercase;letter-spacing:.06em;font-weight:700;}
.tpl-card .name{font-family:'Sora',sans-serif;font-weight:600;font-size:15.5px;color:var(--slate);margin:3px 0;}
.tpl-card .desc{font-size:11.5px;color:var(--ink-pale);line-height:1.4;}
.gen-form-wrap{flex:1;min-width:0;}
.form-group-block{margin-bottom:18px;}
.form-group-title{font-size:11.5px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--paper-dk);}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px 16px;}
.form-grid .field.span2{grid-column:span 2;}
.gen-actions{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border);flex-wrap:wrap;}
.checkbox-row{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-soft);}
.result-panel{margin-top:18px;background:var(--teal-pale);border:1px solid var(--teal);border-radius:var(--radius);padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.result-panel .msg{font-size:13.5px;color:var(--slate);font-weight:600;}
.result-actions{display:flex;gap:8px;flex-wrap:wrap;}

/* ---------- Modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(26,33,38,.55);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px;}
.modal{background:var(--white);border-radius:var(--radius);width:480px;max-width:100%;max-height:88vh;overflow-y:auto;box-shadow:var(--shadow-lg);}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);}
.modal-header h3{font-family:'Sora',sans-serif;font-weight:700;font-size:17px;color:var(--slate);}
.modal-close{background:none;border:none;font-size:20px;color:var(--ink-pale);}
.modal-body{padding:20px;}
.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;}
.modal.modal-lg{width:720px;}

.tabs-row{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--border);}
.tab-btn{padding:9px 16px;font-size:13px;font-weight:600;color:var(--ink-pale);background:none;border:none;border-bottom:2px solid transparent;}
.tab-btn.active{color:var(--slate);border-color:var(--teal);}

.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap;}
.toolbar input[type=text]{flex:1;min-width:180px;padding:9px 12px;border:1px solid var(--border);border-radius:6px;}
.empty-state{text-align:center;padding:50px 20px;color:var(--ink-pale);}
.toast-wrap{position:fixed;bottom:22px;right:22px;z-index:200;display:flex;flex-direction:column;gap:8px;}
.toast{background:var(--slate);color:var(--white);padding:11px 18px;border-radius:6px;font-size:13px;box-shadow:var(--shadow-lg);animation:toast-in .2s ease;}
.toast.error{background:var(--danger);}
.toast.success{background:var(--success);}
@keyframes toast-in{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}

.field-edit-row{display:grid;grid-template-columns:1.4fr 1fr 1fr auto auto;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--paper-dk);font-size:12.5px;}
.field-edit-row input,.field-edit-row select{padding:6px 8px;font-size:12.5px;}
.icon-btn{background:none;border:none;color:var(--ink-pale);font-size:15px;padding:4px;}
.icon-btn:hover{color:var(--danger);}
.muted{color:var(--ink-pale);font-size:12px;}
.section-title{font-family:'Sora',sans-serif;font-weight:600;font-size:16px;color:var(--slate);margin:22px 0 10px;}
.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:26px;text-align:center;color:var(--ink-pale);font-size:13px;}

@media (max-width:900px){
  .gen-layout{flex-direction:column;}
  .tpl-list{width:100%;flex-direction:row;flex-wrap:wrap;}
  .tpl-card{width:calc(50% - 5px);}
  #sidebar{position:fixed;left:-260px;top:56px;bottom:0;transition:left .2s;}
  #sidebar.open{left:0;}
}