/* Asasify Billing — restyled to match PM.asasify's design language:
   Inter + Space Grotesk, indigo/violet accents (#4f46e5 → #7c3aed),
   slate greys, soft light gradient, glass chrome. Dark mode via html.dark
   (PM convention). Class names preserved so every template keeps working. */
:root{
  --primary:#4f46e5;        /* indigo — PM nav/active */
  --primary-700:#4338ca;
  --primary-500:#6366f1;
  --violet:#7c3aed;
  --blue:#3b82f6;
  --grad:linear-gradient(90deg,#4f46e5,#7c3aed);

  --bg1:#f9fafb; --bg2:#f3f4f6;
  --card:#ffffff;
  --surface:#ffffff;        /* inputs, selects, secondary buttons, tabs, auth card */
  --glass:rgba(255,255,255,.82);
  --ink:#0f172a;            /* slate-900 */
  --ink2:#334155;           /* slate-700 */
  --grey:#64748b;           /* slate-500 */
  --grey2:#94a3b8;          /* slate-400 */
  --line:#e2e8f0;           /* slate-200 */
  --line2:#eef2f7;
  --row-hover:rgba(79,70,229,.03);
  --tint:rgba(79,70,229,.06);
  --tint-strong:rgba(79,70,229,.09);

  --green:#10b981; --green-l:#d1fae5; --green-t:#047857;
  --amber:#f59e0b; --amber-l:#fef3c7; --amber-t:#b45309;
  --red:#ef4444;   --red-l:#fee2e2;   --red-t:#b91c1c;
  --info:#3b82f6;  --info-l:#dbeafe;  --info-t:#1d4ed8;

  /* legacy aliases so any stray var refs still resolve */
  --navy:#0f172a; --navy2:#1d4ed8; --accent:#4f46e5; --bg:#f4f6f9; --lightblue:#eef2ff;

  --radius:14px; --radius-sm:9px;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
  --shadow-lg:0 10px 30px rgba(79,70,229,.10),0 4px 12px rgba(15,23,42,.06);
}

/* ── Dark mode (toggled by adding .dark to <html>) ─────────────────────── */
html.dark{
  --bg1:#0f172a; --bg2:#1e293b;
  --card:#1e293b;
  --surface:#0f1a2e;
  --glass:rgba(15,23,42,.85);
  --ink:#e5e7eb; --ink2:#cbd5e1; --grey:#94a3b8; --grey2:#64748b;
  --line:#334155; --line2:#2a3852;
  --row-hover:rgba(129,140,248,.07);
  --tint:rgba(129,140,248,.10);
  --tint-strong:rgba(129,140,248,.16);

  --green-l:rgba(16,185,129,.16); --green-t:#6ee7b7;
  --amber-l:rgba(245,158,11,.16); --amber-t:#fcd34d;
  --red-l:rgba(239,68,68,.16);    --red-t:#fca5a5;
  --info-l:rgba(59,130,246,.16);  --info-t:#93c5fd;

  --shadow:0 1px 3px rgba(0,0,0,.4),0 1px 2px rgba(0,0,0,.3);
  --shadow-lg:0 10px 30px rgba(0,0,0,.45),0 4px 12px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{transition:background-color .25s ease}
body{margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:linear-gradient(135deg,var(--bg1) 0%,var(--bg2) 100%);background-attachment:fixed;
  color:var(--ink);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;
  transition:color .25s ease}
a{color:var(--primary);text-decoration:none}
html.dark a{color:var(--primary-500)}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-.02em}
h1{font-size:23px;margin:0 0 4px;color:var(--ink);font-weight:600}
h2{font-size:16px;margin:22px 0 10px;color:var(--ink);font-weight:600}
h3{font-size:11px;margin:0 0 6px;color:var(--grey);text-transform:uppercase;letter-spacing:.6px;font-weight:600}

.app{display:flex;min-height:100vh}
.side{width:230px;background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-right:1px solid var(--line);flex-shrink:0;position:sticky;top:0;height:100vh;overflow:auto}
.side .brand{padding:18px 20px 14px;font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:700;
  color:var(--ink);border-bottom:1px solid var(--line);letter-spacing:-.02em}
.side .brand small{display:block;font-size:11px;font-weight:500;color:var(--grey);letter-spacing:.2px;
  margin-top:2px;font-family:'Inter',sans-serif}
.side nav a{display:block;margin:2px 10px;padding:9px 14px;color:var(--ink2);font-size:13.5px;font-weight:500;
  border-radius:9px;transition:background .15s,color .15s}
.side nav a:hover{background:var(--tint);color:var(--primary);text-decoration:none}
.side nav a.active{background:var(--tint-strong);color:var(--primary);font-weight:600}
html.dark .side nav a:hover,html.dark .side nav a.active{color:#a5b4fc}
.side nav .grp{padding:16px 24px 5px;font-size:10.5px;text-transform:uppercase;letter-spacing:.7px;
  color:var(--grey2);font-weight:600}
.main{flex:1;min-width:0}
.topbar{background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);padding:11px 26px;display:flex;justify-content:space-between;
  align-items:center;position:sticky;top:0;z-index:5;gap:12px}
.topbar .date{color:var(--grey);font-size:13px}
.content{padding:24px 26px 60px;max-width:1600px;margin:0 auto}

/* ── Top navigation (PM.asasify style: glass bar, icons, dropdown mega-menus) ── */
.topnav{position:sticky;top:0;z-index:50;background:var(--glass);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:6px;padding:9px 22px;max-width:1600px;margin:0 auto;flex-wrap:wrap}
.nav-brand{display:flex;align-items:center;gap:9px;text-decoration:none;margin-right:8px}
.nav-brand:hover{text-decoration:none}
.nav-logo{width:30px;height:30px;border-radius:8px;display:block}
.nav-brand .bt{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:16px;color:var(--ink);letter-spacing:-.02em;line-height:1}
.nav-brand .bt b{color:var(--primary);font-weight:700}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-right{display:flex;align-items:center;gap:9px;margin-left:auto}
.nav-item{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;
  color:var(--ink2);padding:8px 13px;border-radius:9px;transition:color .2s,background .2s;white-space:nowrap;
  background:none;border:none;cursor:pointer;font-family:inherit;line-height:1.2}
.nav-item i{font-size:12px}
.nav-item::after{content:'';position:absolute;bottom:1px;left:50%;transform:translateX(-50%);width:0;height:2px;
  background:var(--grad);border-radius:2px;transition:width .25s ease}
.nav-item:hover{color:var(--primary);background:var(--tint);text-decoration:none}
.nav-item:hover::after{width:55%}
.nav-item.active{color:var(--primary);font-weight:600;background:var(--tint-strong)}
.nav-item.active::after{width:55%}
html.dark .nav-item:hover,html.dark .nav-item.active{color:#a5b4fc}
.dd-chevron{font-size:9px;transition:transform .2s ease;opacity:.55}
.dd-chevron.open{transform:rotate(180deg)}
.nav-dropdown{position:relative}
.dropdown-menu{display:none;position:absolute;left:0;top:100%;margin-top:7px;min-width:290px;background:var(--card);
  border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);z-index:60;padding:8px}
.dropdown-menu.open{display:block;animation:ddIn .16s ease}
@keyframes ddIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}
.mega-item{display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:11px;transition:background .15s;
  text-decoration:none;margin-bottom:1px}
.mega-item:hover{background:var(--tint);text-decoration:none}
.mega-icon{width:34px;height:34px;border-radius:9px;flex-shrink:0;display:flex;align-items:center;
  justify-content:center;font-size:14px}
.mega-title{font-size:13px;font-weight:600;color:var(--ink);line-height:1.25}
.mega-sub{font-size:11px;color:var(--grey);margin-top:1px}
@media(max-width:760px){.nav-item span{display:none}.nav-brand .bt{display:none}}

/* theme toggle button */
.theme-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  color:var(--ink);cursor:pointer;font-size:15px;line-height:1;display:inline-flex;align-items:center;
  justify-content:center;transition:background .15s,border-color .15s,transform .12s;padding:0}
.theme-btn:hover{background:var(--tint);border-color:var(--primary);transform:translateY(-1px)}

/* tenant switcher / user menu */
.tswitch{display:flex;align-items:center;gap:10px}
.tswitch select{padding:7px 11px;border:1px solid var(--line);border-radius:9px;font-size:13px;
  max-width:230px;background:var(--surface);font-family:inherit;color:var(--ink)}
.tswitch strong{font-family:'Space Grotesk',sans-serif;letter-spacing:-.01em}
.logo-chip{height:30px;max-width:120px;object-fit:contain;border-radius:6px}
.umenu{color:var(--grey);font-size:13px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(185px,1fr));gap:15px;margin:6px 0 8px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:17px 19px;
  box-shadow:var(--shadow);transition:box-shadow .15s,transform .12s,border-color .15s}
.card:hover{box-shadow:var(--shadow-lg);border-color:rgba(79,70,229,.25)}
.stat .label{color:var(--grey);font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.stat .value{font-family:'Space Grotesk',sans-serif;font-size:25px;font-weight:600;color:var(--ink);margin-top:5px;letter-spacing:-.02em}
.stat.red .value{color:var(--red)} .stat.green .value{color:var(--green)}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:19px 21px;margin-bottom:18px;box-shadow:var(--shadow)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:900px){.grid2{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;color:var(--grey);font-weight:600;font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;
  padding:10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:10px;border-bottom:1px solid var(--line2);vertical-align:top}
tr:hover td{background:var(--row-hover)}
td.num,th.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
tfoot td{font-weight:700;border-top:2px solid var(--primary);background:var(--tint)}

.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:11px;font-weight:600}
.b-paid{background:var(--green-l);color:var(--green-t)}
.b-partial{background:var(--amber-l);color:var(--amber-t)}
.b-unpaid{background:var(--tint);color:var(--grey)}
.b-void{background:var(--tint);color:var(--grey);text-decoration:line-through}
.b-overdue{background:var(--red-l);color:var(--red-t)}
.b-current{background:var(--info-l);color:var(--info-t)}
.pill{padding:2px 9px;border-radius:6px;background:var(--tint);color:var(--grey);font-size:11px}

.btn{display:inline-block;background:var(--primary);background-image:var(--grad);color:#fff;border:none;border-radius:9px;
  padding:9px 17px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;
  box-shadow:0 1px 2px rgba(79,70,229,.25);transition:transform .12s,box-shadow .12s,filter .12s}
.btn:hover{text-decoration:none;filter:brightness(1.06);box-shadow:var(--shadow-lg);transform:translateY(-1px)}
.btn.sec{background:var(--surface);background-image:none;color:var(--primary);border:1px solid var(--line);box-shadow:none}
.btn.sec:hover{background:var(--tint);filter:none;transform:none}
html.dark .btn.sec{color:#a5b4fc}
.btn.danger{background:var(--surface);background-image:none;color:var(--red);border:1px solid var(--red-l);box-shadow:none}
.btn.danger:hover{background:var(--red-l);filter:none;transform:none}
.btn.sm{padding:6px 12px;font-size:12px}
.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.right{margin-left:auto}
label{display:block;font-size:12px;color:var(--ink2);margin:10px 0 4px;font-weight:600}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;font-size:14px;
  font-family:inherit;background:var(--surface);color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.15)}
textarea{resize:vertical;min-height:60px}
input[type=checkbox]{width:auto}
.frow{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 16px}
.flash{padding:11px 15px;border-radius:10px;margin-bottom:14px;font-size:13px;font-weight:500}
.flash.success,.flash.ok{background:var(--green-l);color:var(--green-t);border:1px solid transparent}
.flash.error{background:var(--red-l);color:var(--red-t);border:1px solid transparent}
.flash.info,.flash.warning{background:var(--info-l);color:var(--info-t);border:1px solid transparent}
.muted{color:var(--grey)}
.tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.tabs a{padding:7px 14px;border-radius:9px;background:var(--surface);border:1px solid var(--line);color:var(--ink2);font-size:13px;font-weight:500}
.tabs a:hover{text-decoration:none;border-color:var(--primary);color:var(--primary)}
.tabs a.active{background-image:var(--grad);color:#fff;border-color:transparent}
.hint{background:var(--tint);border:1px solid var(--tint-strong);border-radius:10px;padding:11px 15px;
  font-size:12.5px;color:var(--primary-700);margin-bottom:14px}
html.dark .hint{color:#c7d2fe}
.linkbtn{background:none;border:none;color:var(--red);cursor:pointer;font-size:16px;padding:0 6px}
#lines td{padding:5px}
#lines input{padding:6px 8px;font-size:13px}

/* themed scrollbar (PM-style indigo→violet) */
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-radius:10px;
  border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);background-clip:content-box}

/* auth pages */
.authwrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#4f46e5,#7c3aed);padding:20px}
.authcard{background:var(--card);border-radius:18px;padding:34px 36px;width:100%;max-width:420px;
  box-shadow:0 24px 60px rgba(30,27,75,.3)}
.authcard h1{font-family:'Space Grotesk',sans-serif;font-size:23px;text-align:center;margin-bottom:4px}
.authcard .sub{text-align:center;color:var(--grey);margin-bottom:20px;font-size:13px}
.authcard .btn{width:100%;text-align:center;padding:12px;font-size:15px;margin-top:8px}
.authcard .alt{text-align:center;margin-top:16px;font-size:13px;color:var(--grey)}
.errlist{color:var(--red);font-size:12px;margin:4px 0 0;padding-left:16px}
.brandmark{text-align:center;font-family:'Space Grotesk',sans-serif;font-size:20px;font-weight:700;
  background-image:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  letter-spacing:-.01em;margin-bottom:2px}
