:root{
  --nav:#062b50;--nav2:#063b68;--blue:#0b79f7;--cyan:#10c8d0;--green:#18b66b;
  --bg:#f4f8fc;--card:#fff;--line:#dce8f3;--text:#092655;--muted:#6b7f99;
  --danger:#d92f46;--shadow:0 8px 24px rgba(26,66,112,.07);
  --sidebar:250px;--sidebar-collapsed:78px
}
*{box-sizing:border-box}
html{min-height:100%}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
input,select,textarea,button{font:inherit}
button{touch-action:manipulation}

/* APP SHELL */
.app-shell{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);min-height:100vh;transition:grid-template-columns .22s ease}
.app-shell.sidebar-collapsed{grid-template-columns:var(--sidebar-collapsed) minmax(0,1fr)}
.sidebar{
  background:linear-gradient(180deg,var(--nav),var(--nav2) 60%,#061f3c);
  color:#fff;padding:18px 12px;position:sticky;top:0;height:100vh;overflow:hidden;
  min-width:0;width:100%;
  transition:padding .22s ease
}
.brand{display:flex;gap:10px;align-items:center;margin:0 4px 22px;min-height:48px}
.brand-mark{width:44px;height:44px;min-width:44px;border-radius:12px;background:linear-gradient(135deg,#12c2d8,var(--blue));display:grid;place-items:center;font-size:28px;font-weight:900;box-shadow:0 8px 18px rgba(10,121,247,.24)}
.brand-copy{min-width:0;transition:opacity .15s ease}
.brand b{font-size:24px;white-space:nowrap}.brand b span{color:var(--cyan)}
.brand small{display:block;color:#c8dceb;font-size:10px;white-space:nowrap}
.main-nav{display:flex;flex-direction:column;gap:3px;width:100%;min-width:0}
.nav-link{
  min-height:44px;display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;
  color:#dcebf5;transition:background .15s ease,color .15s ease,transform .15s ease
}
.nav-link:hover{background:rgba(11,121,247,.22);color:#fff}
.nav-link.active{background:linear-gradient(135deg,rgba(11,121,247,.42),rgba(16,200,208,.22));color:#fff;box-shadow:inset 3px 0 0 #38d4dd}
.nav-icon{width:24px;min-width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;text-align:center;font-size:18px;font-weight:900;line-height:1;color:inherit;overflow:visible}
.nav-label{white-space:nowrap}
.sidebar-foot{position:absolute;bottom:18px;left:18px;font-size:10px;color:#9cb9cd;white-space:nowrap}
.sidebar-collapsed .brand-copy,
.sidebar-collapsed .nav-label,
.sidebar-collapsed .sidebar-foot{
  display:none!important;
}
.sidebar-collapsed .sidebar{
  padding-left:8px;
  padding-right:8px;
}
.sidebar-collapsed .brand{
  width:100%;
  justify-content:center;
  margin:0 0 22px;
  gap:0;
}
.sidebar-collapsed .brand-mark{
  margin:0 auto;
  flex:0 0 44px;
}
.sidebar-collapsed .main-nav{
  width:100%;
  align-items:center;
}
.sidebar-collapsed .nav-link{
  display:flex;
  width:54px;
  min-width:54px;
  max-width:54px;
  height:46px;
  min-height:46px;
  justify-content:center;
  align-items:center;
  gap:0;
  padding:0;
  margin:2px auto;
  overflow:visible;
}
.sidebar-collapsed .nav-icon{
  display:flex!important;
  flex:0 0 30px;
  width:30px;
  min-width:30px;
  height:30px;
  align-items:center;
  justify-content:center;
  margin:0;
  font-size:19px;
  line-height:30px;
  text-align:center;
  color:#dcebf5;
  opacity:1;
  visibility:visible;
}
.sidebar-collapsed .nav-link:hover .nav-icon,
.sidebar-collapsed .nav-link.active .nav-icon{
  color:#fff;
}
.sidebar-collapsed .nav-link.active{
  box-shadow:inset 3px 0 0 #38d4dd;
}

.main{min-width:0}
.topbar{
  min-height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;
  align-items:center;padding:10px 24px;position:sticky;top:0;z-index:20;box-shadow:0 3px 12px rgba(24,60,100,.03)
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.sidebar-toggle{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);cursor:pointer;font-size:18px}
.sidebar-toggle:hover{background:#f1f7fd;border-color:#bcd8ef}
.userbox{display:flex;align-items:center;gap:10px}
.user-meta{display:flex;flex-direction:column;align-items:flex-end}
.userbox small{color:var(--muted)}
.linkbtn{border:0;background:transparent;color:var(--blue);cursor:pointer;font-weight:700}
.content{padding:22px}

/* COMMON UI */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.panel{padding:16px;margin-bottom:14px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:14px}
.kpi{padding:16px}.kpi span{display:block;color:var(--muted);font-size:12px}.kpi b{font-size:28px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}.panel-head h3{margin:0}
.sync-grid,.create-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;align-items:end}
.sync-grid label,.create-grid label,.form-card label,.support-grid label,.form-field,.settings-form label{display:flex;flex-direction:column;gap:6px;color:#5e7390;font-size:12px;font-weight:700}
.sync-grid input,.sync-grid select,.create-grid input,.create-grid select,.form-card input,.form-card select,.support-grid input,.support-grid select,.support-grid textarea,.toolbar input,.toolbar select,.form-field input,.settings-form input,.settings-form select{
  width:100%;border:1px solid var(--line);border-radius:9px;padding:10px;background:#fff;color:var(--text);outline:none
}
input:focus,select:focus,textarea:focus{border-color:#77b9fb;box-shadow:0 0 0 3px rgba(11,121,247,.09)}
.support-grid textarea{min-height:120px;resize:vertical}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:9px;padding:9px 12px;font-weight:800;cursor:pointer}
.btn:hover{filter:brightness(.985)}
.btn.primary{background:var(--green);color:#fff;border-color:var(--green)}
.btn.sm{padding:5px 8px;font-size:11px}
.note{padding:10px 12px;background:#eef7ff;border-left:3px solid var(--blue);border-radius:8px;margin-top:10px;font-size:12px}
.toolbar,.bulkbar{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}.toolbar input{min-width:260px}
.inline{display:flex;gap:6px}.inline input{border:1px solid var(--line);border-radius:7px;padding:6px}
.badge{padding:4px 7px;background:#eef4fb;border-radius:999px;font-size:10px}
.invoice{padding:20px}.invoice-head{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:12px}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.info{border:1px solid var(--line);border-radius:10px;padding:12px}
.invoice-total{display:flex;justify-content:space-between;gap:20px;padding:14px 0}.actions{display:flex;gap:8px}
.report-list>div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #eef3f7}
.integration-grid,.support-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.integration-card{padding:16px}
.form-card{max-width:650px}.form-card form{display:grid;gap:12px}
.check{display:flex!important;flex-direction:row!important;align-items:center;gap:8px!important}
.check input{width:auto!important}
.alert{padding:10px 12px;border-radius:8px;margin-bottom:12px}.alert.success{background:#e7f8ef;color:#0c9f59}.alert.error,.validation{background:#ffe7ea;color:#cc2a40;padding:10px;border-radius:8px}
.validation:empty,.validation.validation-summary-valid{display:none}

/* SMTP SETTINGS */
.settings-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.7fr);gap:14px;align-items:start}
.settings-card{min-width:0}
.settings-form{display:grid;gap:14px}
.settings-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.settings-form small,.field-help{color:var(--muted);font-weight:500;line-height:1.4}
.switch-row{display:flex!important;flex-direction:row!important;align-items:center!important;gap:10px!important;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fbfdff}
.switch-row input[type="checkbox"]{width:18px!important;height:18px!important;min-width:18px;accent-color:var(--blue)}
.switch-row span{display:flex;flex-direction:column;gap:2px}
.switch-row.compact{align-self:end;min-height:64px}
.settings-actions{display:flex;justify-content:flex-end;flex-wrap:wrap}
.test-mail-card{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:14px;border:1px solid #bee8df;background:#f1fbf7;border-radius:12px}
.test-mail-card>div:first-child{display:flex;flex-direction:column;gap:4px}.test-mail-card span,.test-mail-card small{color:#58718c}
.status-chip{padding:7px 10px;border-radius:999px;background:#daf6e9;color:#118650;font-size:11px;font-weight:800;white-space:nowrap}
.smtp-help-card{display:grid;gap:12px}
.smtp-help-card h3{margin:0}
.smtp-example{display:flex;flex-direction:column;gap:4px;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fbfdff;font-size:12px}
.smtp-example span,.smtp-example small{color:var(--muted)}

/* TABLES: per-column filter + sort + paging */
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.table-wrap table{width:100%;border-collapse:collapse;font-size:12px;min-width:800px}
.table-wrap th,.table-wrap td{padding:10px;border-bottom:1px solid #e7eef6;text-align:left;vertical-align:middle}
.table-wrap thead tr:first-child th{background:#f6f9fc;color:#61758f;position:sticky;top:0;z-index:3;white-space:nowrap}
.table-wrap thead tr:first-child th.fl-sortable{cursor:pointer;user-select:none}
.table-wrap thead tr:first-child th.fl-sortable::after{content:" ↕";opacity:.35;font-size:10px}
.table-wrap thead tr:first-child th.fl-sort-asc::after{content:" ↑";opacity:1}
.table-wrap thead tr:first-child th.fl-sort-desc::after{content:" ↓";opacity:1}
.fl-filter-row th{background:#fff;position:sticky;top:37px;z-index:2;padding:6px!important}
.fl-column-filter{width:100%;min-width:90px;border:1px solid #d9e5ef;border-radius:7px;padding:7px 8px;font-size:11px;background:#fbfdff;outline:none}
.fl-column-filter:focus{border-color:#77b9fb;box-shadow:0 0 0 2px rgba(11,121,247,.08)}
.fl-table-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 2px 2px;flex-wrap:wrap}
.fl-table-info{font-size:12px;color:var(--muted)}
.fl-pagination{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.fl-pagination button,.fl-pagination select{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 9px;color:var(--text)}
.fl-pagination button{cursor:pointer;font-weight:700}.fl-pagination button:disabled{opacity:.4;cursor:not-allowed}
.fl-pagination .active-page{background:var(--blue);border-color:var(--blue);color:#fff}
.fl-no-results{display:none;padding:18px;text-align:center;color:var(--muted)}
.fl-no-results.show{display:block}

/* LOGIN */
.login-body{
  min-height:100vh;display:grid;place-items:center;padding:28px;
  background:
    radial-gradient(circle at 50% 25%,rgba(42,156,255,.28),transparent 38%),
    linear-gradient(135deg,#062b50 0%,#0a4f91 55%,#0b79f7 100%)
}
.login-card{width:min(440px,100%);background:#fff;border-radius:20px;padding:30px;box-shadow:0 28px 80px rgba(0,0,0,.26)}
.login-brand{display:flex;align-items:center;gap:12px}.login-brand h1{margin:0;font-size:30px}.login-brand h1 span{color:var(--blue)}.login-brand small{color:var(--muted)}
.login-subtitle{margin:18px 0 20px;color:#465f7b;line-height:1.45}
.login-form{display:grid;gap:14px}
.login-card .form-field input{height:44px}
.remember-row{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:#3f5670;cursor:pointer;width:max-content;max-width:100%}
.login-card .remember-row input[type="checkbox"]{width:17px!important;height:17px!important;min-width:17px;margin:0;accent-color:var(--blue)}
.login-submit{height:44px;margin-top:2px}
.full{width:100%}
.login-footer{margin-top:22px;font-size:11px;color:#5d7188}


/* MOBILE BOTTOM NAVIGATION */
.mobile-bottom-nav,
.mobile-more-menu,
.mobile-more-backdrop{display:none}

@media(max-width:900px){
  body{padding-bottom:78px}
  .app-shell,.app-shell.sidebar-collapsed{display:block;min-height:100vh}
  .sidebar{display:none!important}
  .sidebar-toggle{display:none}
  .topbar{padding:10px 14px}
  .user-meta{display:none}
  .content{padding:14px}

  .mobile-bottom-nav{
    position:fixed;
    left:0;right:0;bottom:0;
    height:70px;
    z-index:80;
    display:grid;
    grid-template-columns:repeat(5,minmax(0,1fr));
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(20,54,90,.12);
    padding-bottom:max(0px,env(safe-area-inset-bottom))
  }

  .mobile-nav-link{
    border:0;
    background:#fff;
    color:#6e8196;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    min-width:0;
    padding:5px 2px;
    border-top:3px solid transparent;
    font-size:9px;
    line-height:1.15;
    cursor:pointer
  }

  .mobile-nav-link.active{
    color:var(--blue);
    background:#eef7ff;
    border-top-color:var(--blue)
  }

  .mobile-nav-icon{
    width:24px;
    height:24px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:18px;
    font-weight:900;
    line-height:1
  }

  .mobile-dots{
    font-size:16px;
    letter-spacing:1px
  }

  .mobile-more-backdrop{
    position:fixed;
    inset:0 0 70px 0;
    z-index:84;
    background:rgba(4,25,48,.36)
  }
  .mobile-more-backdrop.is-open{display:block}

  .mobile-more-menu{
    position:fixed;
    left:10px;right:10px;bottom:78px;
    z-index:85;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:0 18px 50px rgba(5,39,75,.22);
    padding:10px;
    max-height:min(62vh,430px);
    overflow:auto
  }
  .mobile-more-menu.is-open{display:block}

  .mobile-more-head{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:6px 6px 10px;
    border-bottom:1px solid #edf2f7;
    margin-bottom:6px
  }

  .mobile-more-head button{
    width:34px;height:34px;
    border:1px solid var(--line);
    border-radius:9px;
    background:#fff;
    color:var(--text);
    font-size:22px;
    cursor:pointer
  }

  .mobile-more-menu a{
    display:flex;
    align-items:center;
    gap:12px;
    min-height:46px;
    padding:10px 12px;
    border-radius:10px;
    color:#425e79;
    margin:2px 0
  }

  .mobile-more-menu a.active{
    color:var(--blue);
    background:#eef7ff;
    font-weight:800
  }

  .mobile-more-menu .nav-icon{
    color:inherit;
    flex:0 0 26px
  }

  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sync-grid,.create-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .integration-grid,.support-grid,.settings-grid{grid-template-columns:1fr}
  .settings-columns{grid-template-columns:1fr}
  .invoice-total,.invoice-head{flex-direction:column;gap:10px}
  .table-wrap{border-radius:9px}
}

@media(max-width:560px){
  .login-body{padding:16px}
  .login-card{padding:22px;border-radius:16px}
  .login-brand h1{font-size:26px}
  .kpi-grid,.sync-grid,.create-grid,.info-grid{grid-template-columns:1fr}
  .topbar-left b{font-size:14px}
  .userbox{gap:4px}
  .content{padding:10px}
  .toolbar input{min-width:100%}
  .settings-actions{flex-direction:column}
  .settings-actions .btn{width:100%}
  .test-mail-card{align-items:flex-start;flex-direction:column}
}


/* COLLAPSED SIDEBAR TOOLTIP */
@media(min-width:901px){
  .sidebar-collapsed .nav-link[data-tooltip]{
    position:relative;
  }

  .sidebar-collapsed .nav-link[data-tooltip]::after{
    content:attr(data-tooltip);
    position:absolute;
    left:calc(100% + 12px);
    top:50%;
    transform:translateY(-50%) translateX(-4px);
    min-width:max-content;
    max-width:220px;
    padding:9px 12px;
    border-radius:9px;
    background:linear-gradient(180deg,#062b50,#063b68);
    color:#fff;
    font-size:12px;
    font-weight:700;
    line-height:1.2;
    letter-spacing:.01em;
    white-space:nowrap;
    box-shadow:0 10px 28px rgba(4,31,60,.24);
    border:1px solid rgba(56,212,221,.18);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    z-index:120;
    transition:opacity .14s ease,transform .14s ease,visibility .14s ease;
  }

  .sidebar-collapsed .nav-link[data-tooltip]::before{
    content:"";
    position:absolute;
    left:calc(100% + 5px);
    top:50%;
    transform:translateY(-50%);
    border-width:6px 7px 6px 0;
    border-style:solid;
    border-color:transparent #062b50 transparent transparent;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    z-index:121;
    transition:opacity .14s ease,visibility .14s ease;
  }

  .sidebar-collapsed .nav-link[data-tooltip]:hover::after,
  .sidebar-collapsed .nav-link[data-tooltip]:focus-visible::after{
    opacity:1;
    visibility:visible;
    transform:translateY(-50%) translateX(0);
  }

  .sidebar-collapsed .nav-link[data-tooltip]:hover::before,
  .sidebar-collapsed .nav-link[data-tooltip]:focus-visible::before{
    opacity:1;
    visibility:visible;
  }
}