/* DrMoataz Ceph — shared design system (tokens + components). © 2026 Dr. Moataz Alruwaithi. All rights reserved.
   Loaded by every page (public, clinical workspace, superimposition, administration, dialogs, reports).
   Brand: DrMoataz Ceph · Clinician-Controlled Intelligent Cephalometrics · "Clinical Precision. Simplified."
   Clinical tracing colours (T1 black #111111, T2 red #D62828, landmark orange, AI violet) are deliberately NOT tokens of the brand
   palette: they live with the tracing code and never change with the theme. */
:root{
  /* brand */
  --graphite:#101114; --clinical:#F5F6F7; --precision:#45A5E9;
  /* neutrals */
  --n-900:#101114; --n-800:#1C1D22; --n-700:#2A2C33; --n-600:#3A3A3A; --n-500:#7A7A7A; --n-400:#A9ABB0; --n-300:#D9D9D6; --n-200:#E8E9EB; --n-100:#F5F6F7; --n-0:#FFFFFF;
  /* semantic (restrained) */
  --ok:#2E7D4F; --warn:#B8541A; --danger:#B1261C; --info:#45A5E9; --caution:#D99A00;
  /* aliases used by legacy styles */
  --ink:var(--n-900); --charcoal:var(--n-600); --mid:var(--n-500); --line:var(--n-300); --panel:var(--n-100); --paper:var(--n-0); --mark:var(--precision);
  /* typography */
  --font:'Montserrat',system-ui,-apple-system,'Segoe UI',sans-serif; --mono:ui-monospace,Menlo,Consolas,monospace;
  --fs-xs:11px; --fs-sm:12px; --fs-base:13.5px; --fs-md:15px; --fs-lg:18px; --fs-xl:22px; --lh:1.5;
  /* spacing (4-pt grid) */
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:20px; --s-6:24px; --s-8:32px;
  /* radius, elevation, motion */
  --r-sm:4px; --r-md:6px; --r-lg:10px; --sh-1:0 1px 2px rgba(16,17,20,.08); --sh-2:0 8px 24px rgba(16,17,20,.18); --sh-3:0 20px 60px rgba(16,17,20,.3); --t-fast:.12s; --t-base:.2s;
  /* touch targets */
  --tap:40px;
}
/* ---- base ---- */
.dmc-focus :focus-visible,:focus-visible{outline:2px solid var(--precision);outline-offset:2px}
/* ---- buttons ---- */
:where(html:not(.app)) .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);padding:8px 14px;min-height:36px;border-radius:var(--r-sm);font-weight:600;font-size:var(--fs-base);line-height:1.2;cursor:pointer;text-decoration:none;transition:background var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast)}
:where(html:not(.app)) .btn:hover{border-color:var(--precision)}
:where(html:not(.app)) .btn.primary{background:var(--ink);color:#fff}.btn.primary:hover{background:var(--n-800)}
:where(html:not(.app)) .btn.accent{background:var(--precision);border-color:var(--precision);color:#06202f}.btn.accent:hover{filter:brightness(1.06)}
:where(html:not(.app)) .btn.ghost{background:transparent;border-color:transparent;color:var(--mid)}.btn.ghost:hover{color:var(--ink);border-color:var(--line)}
:where(html:not(.app)) .btn.danger{background:#fff;color:var(--danger);border-color:var(--danger)}.btn.danger.primary{background:var(--danger);color:#fff}
:where(html:not(.app)) .btn.attention{background:var(--danger);border-color:var(--danger);color:#fff}
:where(html:not(.app)) .btn.small{padding:5px 10px;min-height:30px;font-size:var(--fs-sm)}
:where(html:not(.app)) .btn:disabled,:where(html:not(.app)) .btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
:where(html:not(.app)) .btn.loading{position:relative;color:transparent !important}.btn.loading::after{content:'';position:absolute;width:14px;height:14px;border:2px solid currentColor;border-color:var(--precision) transparent var(--precision) transparent;border-radius:50%;animation:dmc-spin .8s linear infinite}
@keyframes dmc-spin{to{transform:rotate(360deg)}}
/* ---- inputs / selects ---- */
:where(html:not(.app)) .dmc-input,:where(html:not(.app)) .field input,:where(html:not(.app)) .field select,:where(html:not(.app)) .field textarea,:where(html:not(.app)) .tools input,:where(html:not(.app)) .tools select{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:8px 10px;border-radius:var(--r-sm);font-size:var(--fs-base);min-height:36px}
:where(html:not(.app)) .dmc-input:focus,:where(html:not(.app)) .field input:focus,:where(html:not(.app)) .field select:focus,:where(html:not(.app)) .field textarea:focus{border-color:var(--precision);box-shadow:0 0 0 3px rgba(69,165,233,.18);outline:none}
:where(html:not(.app)) .field.invalid input,:where(html:not(.app)) .field.invalid select{border-color:var(--danger)}.field .help{font-size:var(--fs-xs);color:var(--mid);margin-top:2px}
/* ---- tabs ---- */
:where(html:not(.app)) .dmc-tabs{display:flex;gap:2px;border-bottom:1px solid var(--line)}.dmc-tabs button{border:0;background:transparent;padding:10px 12px;font-weight:600;border-bottom:2px solid transparent;cursor:pointer;min-height:var(--tap)}.dmc-tabs button.on,.dmc-tabs button.active{border-bottom-color:var(--ink)}
/* ---- cards ---- */
:where(html:not(.app)) .card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-1)}.card h3{margin:0 0 8px;font-size:var(--fs-base)}
/* ---- tables ---- */
:where(html:not(.app)) table.t{width:100%;border-collapse:collapse;font-size:var(--fs-sm)}table.t th{text-align:left;border-bottom:1px solid var(--ink);padding:7px 6px;font-size:var(--fs-xs);color:var(--charcoal);text-transform:uppercase;letter-spacing:.03em}table.t td{padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}table.t tr:hover td{background:var(--n-100)}
:where(html:not(.app)) [dir=rtl] table.t th{text-align:right}
/* ---- pills / status ---- */
.pill{display:inline-block;border-radius:10px;padding:1px 8px;font-size:var(--fs-xs);font-weight:700;background:var(--n-200);color:var(--ink)}.pill.admin{background:var(--ink);color:#fff}.pill.orthodontist{background:var(--precision);color:#06202f}.pill.resident{background:#dfe9f5}.pill.off{background:#f6d6c8}
.status{display:inline-flex;align-items:center;gap:6px;font-size:var(--fs-sm)}.status::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--n-400)}
.status.ok::before,.status.synced::before,.status.verified::before{background:var(--ok)}.status.warn::before,.status.provisional::before,.status.local::before{background:var(--caution)}.status.danger::before,.status.invalid::before,.status.failed::before,.status.conflict::before{background:var(--danger)}.status.offline::before{background:var(--n-500)}
/* ---- dialogs ---- */
:where(html:not(.app)) .modal{position:fixed;inset:0;background:rgba(16,17,20,.55);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal[hidden]{display:none}
:where(html:not(.app)) .modal-card{background:var(--paper);color:var(--ink);border-radius:var(--r-lg);padding:20px 22px;max-width:560px;width:100%;box-shadow:var(--sh-3);max-height:92vh;overflow:auto}.modal-card h2{margin:0 0 6px;font-size:var(--fs-lg)}
:where(html:not(.app)) .modal-actions{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap;margin-top:12px}
/* ---- toast ---- */
:where(html:not(.app)) .toast,:where(html:not(.app)) #toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--graphite);color:var(--clinical);border:1px solid var(--precision);border-radius:var(--r-md);padding:10px 16px;font-size:var(--fs-base);z-index:60;box-shadow:var(--sh-2)}
/* ---- tooltips (pure CSS, data-tip) ---- */
[data-tip]{position:relative}[data-tip]:hover::after,[data-tip]:focus-visible::after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 6px);transform:translateX(-50%);background:var(--graphite);color:#fff;font-size:var(--fs-xs);padding:4px 8px;border-radius:var(--r-sm);white-space:nowrap;z-index:70;pointer-events:none;box-shadow:var(--sh-2)}
/* ---- progress ---- */
.progress{height:8px;background:var(--n-200);border-radius:4px;overflow:hidden}.progress i{display:block;height:100%;background:var(--precision);transition:width var(--t-base)}.progress i.hot{background:var(--danger)}
.skeleton{background:linear-gradient(90deg,var(--n-200),var(--n-100),var(--n-200));background-size:200% 100%;animation:dmc-sk 1.2s infinite;border-radius:var(--r-sm);min-height:14px}@keyframes dmc-sk{to{background-position:-200% 0}}
/* ---- search ---- */
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--r-md);padding:6px 10px;background:var(--paper)}.search input{border:0;outline:0;flex:1;font-size:var(--fs-md);min-height:28px}
.cmd{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:var(--r-sm);cursor:pointer;font-size:var(--fs-base)}.cmd.sel,.cmd:hover{background:var(--n-100)}
/* ---- navigation ---- */
.sidenav button{min-height:var(--tap)}
/* ---- report headings (print and preview) ---- */
.pdf-sec,.rp-sec{font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--n-600);font-size:9px;margin:7px 0 2px}
/* ---- RTL consistency: logical properties for the chrome ---- */
[dir=rtl] .ctxbar .ctx-stage{margin-right:0;margin-left:6px}
[dir=rtl] .statusbar .st-case{direction:ltr;text-align:right}
[dir=rtl] #helpPanel{right:auto;left:0;border-left:0;border-right:1px solid var(--line);box-shadow:12px 0 32px rgba(0,0,0,.25)}
[dir=rtl] .admin .sidenav{border-right:0;border-left:1px solid var(--line)}
[dir=rtl] .sidenav button .cnt{margin-left:0;margin-right:auto}
[dir=rtl] .action .act{margin-left:0;margin-right:auto}
[dir=rtl] .kv b,[dir=rtl] .field label{text-align:right}
[dir=rtl] .mono,[dir=rtl] .num,[dir=rtl] input[type=number]{direction:ltr;unicode-bidi:embed}
/* ---- reduced motion / print ---- */
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important}}
@media print{.toast,#toast,#helpPanel,#tourOverlay{display:none !important}}