/* ============================================================
   TRU Clinic OS — Quiet Luxury UI
   Brand: off-white / ink / hairline greys · Cairo + Montserrat
   ============================================================ */

:root{
  --bg:#F5F5F7;
  --card:#FFFFFF;
  --line:#E3E3E8;
  --line-soft:#EEEEF1;
  --ink:#111111;
  --text:#1D1D1F;
  --sub:#86868B;
  --mut:#B8B8B8;

  --ok:#1F7A43;      --ok-bg:#E8F3EC;
  --warn:#9A5B00;    --warn-bg:#F7EFE2;
  --bad:#B3261E;     --bad-bg:#F9ECEB;
  --info:#3A5A80;    --info-bg:#EAF0F6;

  --r-lg:18px; --r-md:13px; --r-sm:9px;
  --sh-card:0 1px 2px rgba(17,17,17,.04), 0 10px 30px -12px rgba(17,17,17,.08);
  --sh-float:0 2px 6px rgba(17,17,17,.06), 0 24px 60px -16px rgba(17,17,17,.18);
  --ease:cubic-bezier(.32,.72,.28,1);

  --f-ar:'Cairo',system-ui,sans-serif;
  --f-en:'Montserrat','Cairo',sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-ar); background:var(--bg); color:var(--text);
  font-size:16px; line-height:1.7; min-height:100dvh;
  -webkit-font-smoothing:antialiased; touch-action:manipulation;
}
.hidden{display:none!important}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
img{max-width:100%;display:block}
::selection{background:#111;color:#fff}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}

/* numbers always latin + tabular */
.num, td.num, .stat-v{font-family:var(--f-en);font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:embed}

/* ---------- brand bits ---------- */
.brand-word{
  display:block;font-family:var(--f-en);font-weight:300;font-size:20px;
  letter-spacing:.34em;color:var(--ink);line-height:1.1;
}
.brand-sub{
  display:block;font-family:var(--f-en);font-weight:400;font-size:8.5px;
  letter-spacing:.42em;color:var(--sub);
}
.auth-logo img,.side-logo img{border:1px solid var(--line);border-radius:12px}

/* ============================================================
   AUTH
============================================================ */
.auth{
  min-height:100dvh;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:28px;padding:24px;
  background:
    radial-gradient(900px 500px at 85% -10%, #FFFFFF 0%, transparent 60%),
    radial-gradient(700px 500px at 0% 110%, #ECECEF 0%, transparent 55%),
    var(--bg);
}
.auth-card{
  width:100%;max-width:400px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-float);padding:36px 30px 30px;
}
.auth-logo{display:flex;align-items:center;gap:14px;justify-content:center;margin-bottom:26px}
.auth-title{font-size:19px;font-weight:600;margin-bottom:6px;text-align:center}
.auth-hint{font-size:13.5px;color:var(--sub);text-align:center;margin-bottom:14px}
.auth-form{display:flex;flex-direction:column;gap:14px;margin-top:6px}
.auth-foot{
  font-family:var(--f-en);font-size:9px;letter-spacing:.4em;color:var(--mut);
  text-align:center;padding:0 12px;
}

/* ============================================================
   APP LAYOUT — mobile-first (bottom nav) → desktop sidebar
============================================================ */
.app{min-height:100dvh}
.side{display:none}
.main{padding-bottom:calc(76px + env(safe-area-inset-bottom))}

.topbar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;
  background:rgba(245,245,247,.82);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid var(--line-soft);
}
.topbar-title{font-size:20px;font-weight:700;letter-spacing:-.01em}
.topbar-actions{display:flex;gap:8px}

.view{padding:18px 18px 30px;max-width:1060px;margin:0 auto;width:100%}
.view:focus,.view:focus-visible{outline:none}

/* bottom nav (mobile) */
.bnav{
  position:fixed;bottom:0;right:0;left:0;z-index:50;
  display:flex;justify-content:space-around;
  background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-top:1px solid var(--line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.bnav a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:6px 2px;font-size:10.5px;font-weight:600;color:var(--sub);
  text-decoration:none;border-radius:10px;min-height:48px;justify-content:center;
  transition:color .18s var(--ease);
}
.bnav a svg{width:21px;height:21px}
.bnav a.on{color:var(--ink)}
.bnav a:active{transform:scale(.96)}

/* desktop */
@media (min-width:1024px){
  .app{display:grid;grid-template-columns:236px 1fr}
  .bnav{display:none}
  .main{padding-bottom:0}
  .side{
    display:flex;flex-direction:column;gap:10px;
    position:sticky;top:0;height:100dvh;padding:26px 18px 18px;
    background:var(--card);border-inline-end:1px solid var(--line);
  }
  .side-logo{display:flex;align-items:center;gap:12px;padding:0 8px 18px;border-bottom:1px solid var(--line-soft)}
  .side-nav{display:flex;flex-direction:column;gap:2px;padding-top:8px;flex:1}
  .side-nav a{
    display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;
    font-size:14.5px;font-weight:600;color:var(--sub);text-decoration:none;
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .side-nav a svg{width:19px;height:19px}
  .side-nav a:hover{background:var(--bg);color:var(--text)}
  .side-nav a.on{background:var(--ink);color:#fff}
  .side-foot{border-top:1px solid var(--line-soft);padding-top:12px}
  .side-user{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:9px 12px;border-radius:11px;font-size:13.5px;font-weight:600;color:var(--sub);
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .side-user:hover{background:var(--bad-bg);color:var(--bad)}
  .topbar{padding:18px 28px;background:rgba(245,245,247,.85)}
  .topbar-title{font-size:23px}
  .view{padding:24px 28px 48px}
}

/* ============================================================
   COMPONENTS
============================================================ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:18px;
}
.card + .card{margin-top:14px}
.card-title{font-size:15px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.card-title .lnk{font-size:12.5px;font-weight:600;color:var(--sub);text-decoration:none;border-bottom:1px solid var(--line)}
.card-title .lnk:hover{color:var(--ink);border-color:var(--ink)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:980px;padding:10px 20px;font-size:14px;font-weight:600;
  border:1px solid transparent;min-height:44px;
  transition:transform .16s var(--ease),opacity .16s var(--ease),background .16s var(--ease);
}
.btn:active{transform:scale(.965)}
.btn[disabled]{opacity:.45;pointer-events:none}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{opacity:.86}
.btn-ghost{border-color:var(--line);background:var(--card);color:var(--text)}
.btn-ghost:hover{background:var(--bg)}
.btn-danger{background:var(--bad-bg);color:var(--bad)}
.btn-block{width:100%}
.btn-sm{min-height:36px;padding:6px 14px;font-size:13px}
.btn-icon{min-height:36px;min-width:36px;padding:6px;border-radius:10px}
.btn svg{width:17px;height:17px}

/* fields */
.fld{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--sub)}
.fld input,.fld select,.fld textarea{
  border:1px solid var(--line);border-radius:var(--r-md);padding:11px 14px;
  font-size:15px;font-weight:500;background:var(--card);color:var(--text);
  min-height:46px;width:100%;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.fld textarea{min-height:80px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(17,17,17,.08);
}
.fld input.err,.fld select.err{border-color:var(--bad);box-shadow:0 0 0 3px rgba(179,38,30,.08)}
.form-err{color:var(--bad);font-size:13px;min-height:20px;font-weight:600}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:420px){.frow{grid-template-columns:1fr}}

/* stat tiles */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
@media (min-width:1024px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:16px 18px;
}
.stat-l{font-size:12px;font-weight:600;color:var(--sub);letter-spacing:.02em}
.stat-v{font-size:26px;font-weight:500;color:var(--ink);margin-top:2px}
.stat-v small{font-size:13px;color:var(--sub);font-weight:500}
.stat.accent{background:var(--ink);border-color:var(--ink)}
.stat.accent .stat-l{color:#B8B8B8}
.stat.accent .stat-v{color:#fff}

/* chips */
.chip{
  display:inline-flex;align-items:center;gap:5px;border-radius:980px;
  padding:2.5px 11px;font-size:11.5px;font-weight:700;white-space:nowrap;
}
.chip-grey{background:var(--bg);color:var(--sub);border:1px solid var(--line)}
.chip-ink{background:var(--ink);color:#fff}
.chip-ok{background:var(--ok-bg);color:var(--ok)}
.chip-warn{background:var(--warn-bg);color:var(--warn)}
.chip-bad{background:var(--bad-bg);color:var(--bad)}
.chip-info{background:var(--info-bg);color:var(--info)}

/* lists / rows */
.rowlist{display:flex;flex-direction:column}
.rowitem{
  display:flex;align-items:center;gap:12px;padding:13px 4px;
  border-bottom:1px solid var(--line-soft);
}
.rowitem:last-child{border-bottom:0}
.rowitem.click{cursor:pointer;border-radius:10px;transition:background .15s var(--ease)}
.rowitem.click:hover{background:var(--bg)}
.rowmain{flex:1;min-width:0}
.rowtitle{font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rowsub{font-size:12.5px;color:var(--sub)}
.rowend{display:flex;align-items:center;gap:8px;flex-shrink:0}

/* appointment time bubble */
.tbub{
  min-width:60px;text-align:center;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--r-md);padding:7px 6px;
  font-family:var(--f-en);font-size:14px;font-weight:600;direction:ltr;
}
.tbub small{display:block;font-size:9.5px;color:var(--sub);letter-spacing:.06em}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{
  text-align:right;font-size:11.5px;color:var(--sub);font-weight:700;
  letter-spacing:.03em;padding:8px 10px;border-bottom:1px solid var(--line);
}
.tbl td{padding:11px 10px;border-bottom:1px solid var(--line-soft);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* search */
.search{position:relative;margin-bottom:14px}
.search input{
  width:100%;border:1px solid var(--line);border-radius:980px;background:var(--card);
  padding:12px 44px 12px 18px;font-size:15px;min-height:48px;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(17,17,17,.08)}
.search svg{
  position:absolute;top:50%;right:16px;transform:translateY(-50%);
  width:18px;height:18px;color:var(--sub);pointer-events:none;
}

/* segmented control */
.seg{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:980px;padding:3px;gap:2px}
.seg button{
  border-radius:980px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--sub);
  min-height:36px;transition:background .16s var(--ease),color .16s var(--ease);
}
.seg button.on{background:var(--ink);color:#fff}

/* date strip (appointments) */
.datebar{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.datebar input[type=date]{
  flex:1;border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);
  padding:9px 12px;font-size:14.5px;min-height:44px;font-family:var(--f-en);
}
.datebar .btn-icon{border:1px solid var(--line);background:var(--card)}

/* empty state */
.empty{
  text-align:center;padding:38px 16px;color:var(--sub);
}
.empty svg{width:34px;height:34px;margin:0 auto 10px;opacity:.5}
.empty p{font-size:14px;font-weight:600}
.empty small{font-size:12.5px}

/* ============================================================
   MODAL
============================================================ */
.modal-bd{
  position:fixed;inset:0;z-index:100;background:rgba(17,17,17,.45);
  display:flex;align-items:flex-end;justify-content:center;
  animation:fadeIn .2s var(--ease);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
@media (min-width:640px){.modal-bd{align-items:center;padding:24px}}
.modal{
  background:var(--card);width:100%;max-width:520px;max-height:92dvh;
  border-radius:22px 22px 0 0;display:flex;flex-direction:column;
  animation:sheetUp .3s var(--ease);box-shadow:var(--sh-float);
}
@media (min-width:640px){.modal{border-radius:22px;animation:popIn .24s var(--ease)}}
.modal-h{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px 4px;
}
.modal-h h2{font-size:17px;font-weight:700}
.modal-x{
  width:34px;height:34px;border-radius:50%;background:var(--bg);color:var(--sub);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:background .16s var(--ease);
}
.modal-x:hover{background:var(--line)}
.modal-b{padding:14px 20px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:13px}
.modal-f{
  display:flex;gap:10px;padding:12px 20px calc(16px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line-soft);
}
.modal-f .btn{flex:1}

@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes sheetUp{from{transform:translateY(48px);opacity:.4}to{transform:translateY(0);opacity:1}}
@keyframes popIn{from{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}

/* ============================================================
   TOAST
============================================================ */
#toast-root{position:fixed;top:14px;right:0;left:0;z-index:200;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}
.toast{
  background:var(--ink);color:#fff;border-radius:980px;padding:10px 22px;
  font-size:13.5px;font-weight:600;box-shadow:var(--sh-float);
  animation:toastIn .3s var(--ease);max-width:calc(100vw - 32px);
}
.toast.bad{background:var(--bad)}
@keyframes toastIn{from{transform:translateY(-14px);opacity:0}to{transform:translateY(0);opacity:1}}
.toast.out{transition:opacity .25s,transform .25s;opacity:0;transform:translateY(-10px)}

/* patient profile header */
.pt-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.pt-ava{
  width:52px;height:52px;border-radius:50%;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:600;flex-shrink:0;
}
.pt-meta{flex:1;min-width:0}
.pt-name{font-size:19px;font-weight:700}
.pt-sub{font-size:13px;color:var(--sub)}
.pt-balance{display:flex;flex-direction:column;align-items:flex-end}
.pt-balance b{font-family:var(--f-en);font-size:20px}
.tabs{display:flex;gap:2px;background:var(--bg);border:1px solid var(--line);border-radius:980px;padding:3px;margin:14px 0}
.tabs button{
  flex:1;border-radius:980px;padding:8px 6px;font-size:13px;font-weight:700;color:var(--sub);
  min-height:40px;transition:background .16s var(--ease),color .16s var(--ease);
}
.tabs button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(17,17,17,.08)}

.balance-pos{color:var(--bad)}
.balance-zero{color:var(--ok)}

.back-lnk{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;
  color:var(--sub);text-decoration:none;margin-bottom:12px;white-space:nowrap;
}
.back-lnk svg{width:15px;height:15px;flex-shrink:0}
.back-lnk:hover{color:var(--ink)}

/* alert cards (dashboard) */
.alert-card{
  display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;
  background:var(--card);border:1px solid var(--warn);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:12px 16px;margin-bottom:14px;
  font-size:13.5px;font-weight:700;
  transition:transform .16s var(--ease);
}
.alert-card:hover{transform:translateY(-1px)}

/* 6-item bottom nav */
.bnav.six a{font-size:9.5px;padding:6px 0}
.bnav.six a svg{width:19px;height:19px}

/* scrollable tabs (7+ pills) */
.tabs.scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;
  justify-content:flex-start;
}
.tabs.scroll::-webkit-scrollbar{display:none}
.tabs.scroll button{flex:0 0 auto;padding:8px 14px;white-space:nowrap}

/* treatment plan */
.plan-box{border:1px solid var(--line);border-radius:var(--r-md);padding:14px;margin-bottom:12px}
.plan-hd{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.plan-hd b{font-size:15px}
.plan-irow{
  display:grid;grid-template-columns:1fr 68px 88px 36px;gap:8px;margin-bottom:8px;align-items:center;
}
.plan-irow input{
  border:1px solid var(--line);border-radius:var(--r-sm);padding:9px 10px;font-size:13.5px;
  min-height:42px;width:100%;background:var(--card);
}
.plan-irow input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(17,17,17,.08)}
.plan-irow .pi-x{border:1px solid var(--line);border-radius:var(--r-sm);color:var(--sub)}
.rx-row{grid-template-columns:1fr 1fr 36px}
.inst-row{grid-template-columns:1fr 1fr 36px}

/* dental chart */
.chart-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;padding:6px 2px 10px;
}
.chart-row{display:flex;gap:4px;justify-content:center;min-width:600px}
.chart-row .tooth:nth-child(8){margin-inline-end:14px}
.chart-gap{
  text-align:center;font-size:10.5px;color:var(--mut);padding:8px 0;
  font-weight:700;letter-spacing:.05em;min-width:600px;
}
.tooth{
  width:33px;height:44px;border:1.5px solid;border-radius:8px 8px 11px 11px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:11px;font-weight:600;cursor:pointer;position:relative;flex-shrink:0;
  transition:transform .15s var(--ease),box-shadow .15s var(--ease);
}
.chart-row:last-child .tooth{border-radius:11px 11px 8px 8px}
.tooth:hover{transform:translateY(-2px);box-shadow:0 4px 10px rgba(17,17,17,.12)}
.tooth s{position:absolute;font-size:17px;text-decoration:none;opacity:.7}
.legend{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.legend .chip{font-size:10.5px}

/* photo gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.gitem{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;cursor:pointer;
  background:var(--bg);transition:transform .16s var(--ease),box-shadow .16s var(--ease);
}
.gitem:hover{transform:translateY(-2px);box-shadow:var(--sh-card)}
.gitem img{width:100%;aspect-ratio:1;object-fit:cover}
.gitem figcaption{font-size:10.5px;color:var(--sub);padding:5px 8px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}