:root{
  --brand:#1E8A8A;
  --brand-dark:#166666;
  --brand-rgb:30,138,138;
  --sidebar-bg:#0f172a;
  --sidebar-text:#cbd5e1;
  --sidebar-active:#1e293b;
  --body-bg:#f4f6f9;
  --card-bg:#ffffff;
  --border:#e5e7eb;
  --text:#1f2937;
  --muted:#6b7280;
}

*{box-sizing:border-box}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased}

/* ====== AUTH LAYOUT ====== */
.auth-body{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);min-height:100vh;display:flex;align-items:center;padding:40px 15px}
.auth-shell{width:100%;max-width:520px;margin:0 auto}
.auth-card{background:#fff;border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.25);padding:40px}
.auth-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.auth-brand-icon{width:48px;height:48px;background:var(--brand);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px}
.auth-brand-name{font-weight:700;color:var(--text);font-size:16px}
.auth-brand-sub{color:var(--muted);font-size:12px}
.auth-footer{text-align:center;color:rgba(255,255,255,.8);margin-top:20px;font-size:13px}

/* ====== APP SHELL ====== */
.app-body{background:var(--body-bg);margin:0;min-height:100vh}
.app-shell{display:flex;min-height:100vh}
.app-sidebar{width:260px;background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:100;transition:transform .25s ease}
.app-main{flex:1;margin-left:260px;min-width:0;display:flex;flex-direction:column}

.brand{padding:20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-icon{width:40px;height:40px;background:var(--brand);color:#fff;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.brand-name{color:#fff;font-weight:700;font-size:15px;line-height:1.2}
.brand-sub{color:#94a3b8;font-size:11px;margin-top:2px}
.brand-logo-img{max-height:44px;max-width:200px;width:auto;object-fit:contain}
.auth-logo-img{max-height:60px;max-width:260px;width:auto;object-fit:contain}

.side-nav{flex:1;padding:16px 10px;overflow-y:auto}
.side-link{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:8px;color:var(--sidebar-text);text-decoration:none;font-size:14px;font-weight:500;margin-bottom:2px;transition:background .15s,color .15s}
.side-link i{width:18px;text-align:center;font-size:14px}
.side-link:hover{background:var(--sidebar-active);color:#fff}
.side-link.active{background:var(--brand);color:#fff}

.side-footer{padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);color:#94a3b8;font-size:11px}

.app-header{background:#fff;border-bottom:1px solid var(--border);padding:14px 24px;display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:20}
.header-title{font-weight:600;font-size:15px;color:var(--text);flex:1}
.header-user{display:flex;align-items:center}

.user-pill{
  display:flex; align-items:center; gap:10px;
  background:transparent; border:1px solid transparent; border-radius:999px;
  padding:4px 10px 4px 14px; cursor:pointer;
  transition:background .15s ease, border-color .15s ease;
}
.user-pill:hover, .user-pill[aria-expanded="true"]{
  background:#fafbfc; border-color:var(--border);
}
.user-pill::after{
  /* Bootstrap's default dropdown caret has its own ::after; we tweak placement */
  margin-left:4px; opacity:.5;
}
.user-meta{text-align:right;line-height:1.2}
.user-name{font-weight:600;font-size:13px;color:var(--text)}
.user-role{font-size:11px;color:var(--muted)}
.user-avatar{
  width:36px; height:36px; background:var(--brand); color:#fff;
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size:14px; flex-shrink:0;
}

.user-menu{
  min-width:240px; padding:0; margin-top:8px;
  border:1px solid var(--border); border-radius:10px; overflow:hidden;
}
.user-menu .dropdown-item{
  padding:10px 16px; font-size:14px; display:flex; align-items:center;
}
.user-menu .dropdown-item:hover{ background:#fafbfc; }
.user-menu .dropdown-item.text-danger:hover{ background:rgba(220,38,38,.06); }
.user-menu form{ margin:0; }
.user-menu form .dropdown-item{ width:100%; text-align:left; border:0; background:transparent; }
.user-menu hr.dropdown-divider{ margin:4px 0; border-color:var(--border); }

.app-content{padding:28px;flex:1}
.page-header h3{font-weight:700}

/* ====== CARDS ====== */
.card{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;box-shadow:0 1px 3px rgba(0,0,0,.03)}
.card-header{background:#fafbfc;border-bottom:1px solid var(--border);padding:14px 18px;border-radius:10px 10px 0 0}
.card-body{padding:18px}

/* ====== STAT CARDS ====== */
.stat-row .stat-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px 18px;display:flex;align-items:center;gap:14px;height:100%}
.stat-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.stat-value{font-size:24px;font-weight:700;color:var(--text);line-height:1}
.stat-label{font-size:12px;color:var(--muted);margin-top:4px;text-transform:uppercase;letter-spacing:.5px}

.bg-primary-soft{background:rgba(var(--brand-rgb),.12)}
.bg-success-soft{background:rgba(22,163,74,.12)}
.bg-warning-soft{background:rgba(234,179,8,.15)}
.bg-danger-soft{background:rgba(220,38,38,.12)}
.bg-info-soft{background:rgba(6,182,212,.12)}

/* ====== TABLES ====== */
.table{margin-bottom:0;color:var(--text)}
.table thead th{background:#fafbfc;font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);font-weight:600;border-bottom:1px solid var(--border);padding:12px 16px}
.table tbody td{padding:14px 16px;vertical-align:middle;border-top:1px solid var(--border)}
.table-hover tbody tr:hover{background:#fafbfc}

/* ====== BADGES ====== */
.badge{padding:5px 10px;font-weight:500;font-size:11px;border-radius:5px;letter-spacing:.3px}

/* ====== FORMS ====== */
.form-control,.form-select{border-radius:8px;border-color:var(--border);padding:9px 12px;font-size:14px}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(var(--brand-rgb),.1)}
.form-label{font-weight:500;font-size:13px;color:#374151;margin-bottom:5px}
.form-control-lg{padding:12px 14px}

/* ====== BUTTONS ====== */
.btn{border-radius:8px;font-weight:500;font-size:14px;padding:8px 16px}
.btn-primary{background:var(--brand);border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn-lg{padding:12px 20px;font-size:15px}
.btn-sm{padding:5px 10px;font-size:12px}

/* ====== SUBMISSION DETAIL ====== */
.detail-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;padding:18px;background:#fafbfc;border-radius:8px;border:1px solid var(--border);margin-bottom:18px}
.detail-meta .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.detail-meta .value{font-weight:600;font-size:14px;word-break:break-word}

.file-item{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border);border-radius:8px;margin-bottom:8px;background:#fff;transition:all .15s}
.file-item:hover{border-color:var(--brand);box-shadow:0 2px 8px rgba(var(--brand-rgb),.08)}
.file-icon{width:40px;height:40px;background:rgba(var(--brand-rgb),.1);color:var(--brand);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.file-meta{flex:1;min-width:0}
.file-name{font-weight:500;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-size{font-size:12px;color:var(--muted)}

.comment{padding:14px;border-left:3px solid var(--brand);background:#fafbfc;margin-bottom:10px;border-radius:0 8px 8px 0}
.comment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.comment-author{font-weight:600;font-size:13px}
.comment-role{font-size:11px;background:var(--brand);color:#fff;padding:2px 8px;border-radius:4px;margin-left:8px}
.comment-role.role-enterprise{background:#0ea5e9}
.comment-role.role-admin{background:#7c3aed}
.comment-date{font-size:11px;color:var(--muted)}
.comment-body{font-size:14px;line-height:1.5;white-space:pre-wrap}

.timeline{position:relative;padding-left:30px}
.timeline::before{content:'';position:absolute;left:10px;top:0;bottom:0;width:2px;background:var(--border)}
.timeline-item{position:relative;padding-bottom:20px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:3px solid #fff;box-shadow:0 0 0 2px var(--border)}
.timeline-item.accepted::before{background:#16a34a}
.timeline-item.requires_resubmission::before{background:#dc2626}
.timeline-item.under_review::before{background:#eab308}

.file-drop{border:2px dashed var(--border);padding:30px;text-align:center;border-radius:10px;background:#fafbfc;transition:all .2s;cursor:pointer}
.file-drop:hover,.file-drop.dragover{border-color:var(--brand);background:rgba(var(--brand-rgb),.03)}
.file-drop i{font-size:38px;color:var(--brand);margin-bottom:10px}

/* ====== EMPTY STATE ====== */
.empty-state{text-align:center;padding:40px 20px;color:var(--muted)}
.empty-state i{font-size:48px;color:#d1d5db;margin-bottom:12px}
.empty-state h5{color:var(--text);margin-bottom:6px}

/* ====== RESPONSIVE ====== */
@media(max-width:768px){
  .app-sidebar{transform:translateX(-100%);width:240px}
  .app-sidebar.open{transform:translateX(0);box-shadow:2px 0 20px rgba(0,0,0,.3)}
  .app-main{margin-left:0}
  .app-content{padding:16px}
  .app-header{padding:12px 16px}
  .header-user .user-meta{display:none}
  .auth-card{padding:24px}
}

/* ====== FLOATING WHATSAPP BUTTON ====== */
.wa-float{
  position:fixed; bottom:24px; right:24px;
  width:60px; height:60px; border-radius:50%;
  background:#25d366; color:#fff !important;
  display:flex; align-items:center; justify-content:center;
  text-decoration:none;
  box-shadow:0 6px 20px rgba(37,211,102,.45);
  z-index:9999;
  transition:transform .2s ease, box-shadow .2s ease;
  animation:waPulse 2.5s ease-in-out infinite;
}
.wa-float svg{ width:30px; height:30px; display:block; }
.wa-float:hover{
  transform:scale(1.1);
  box-shadow:0 10px 28px rgba(37,211,102,.6);
  color:#fff !important;
}
@keyframes waPulse{
  0%,100%{box-shadow:0 6px 20px rgba(37,211,102,.45), 0 0 0 0 rgba(37,211,102,.4)}
  50%    {box-shadow:0 6px 20px rgba(37,211,102,.45), 0 0 0 14px rgba(37,211,102,0)}
}
@media(max-width:768px){
  .wa-float{bottom:16px; right:16px; width:54px; height:54px}
  .wa-float svg{ width:26px; height:26px; }
}

/* ====== SETTINGS TABS ====== */
.nav-pills .nav-link{
  color:var(--text); background:transparent;
  border:1px solid var(--border);
  font-size:13px; padding:8px 14px;
}
.nav-pills .nav-link.active{
  background:var(--brand); border-color:var(--brand); color:#fff;
}
.nav-pills .nav-link:hover:not(.active){ background:#f4f6f9; }

/* ====== PASSWORD TOGGLE & FILE REMOVE ====== */
.password-toggle-btn{
  border-color:var(--border);
  color:var(--muted);
  min-width:46px;
}
.password-toggle-btn:hover{ color:var(--brand); border-color:var(--brand); background:#fff; }
.password-toggle-btn:focus{ box-shadow:0 0 0 3px rgba(var(--brand-rgb),.1); }

.file-item .file-remove-btn{
  padding:4px 9px;
  line-height:1;
  margin-left:auto;
}