/* ISOCENTRE — institutional light theme.
   Palette from the MPRG logo: #214099 (primary blue), #0D286A (dark blue),
   #D6B12B (gold), #FFFFFF (white). */

:root {
  --blue: #214099;
  --navy: #0D286A;
  --gold: #D6B12B;
  --gold-ink: #8a7115;    /* readable gold for text on white */
  --gold-tint: #fbf5df;
  --page: #f1f3f8;
  --paper: #ffffff;
  --ink: #1c2437;
  --muted: #5c6784;
  --line: #d9deeb;
  --line-soft: #e7eaf3;
  --ok: #1e7b44;
  --alert: #b3362c;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --mono: "Source Code Pro", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
}

button { font-family: inherit; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* ---- top bar (institution plate) ---- */

.topbar {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 28px;
}

.topbar-logo { height: 40px; width: auto; max-width: 72vw; object-fit: contain; }

.topbar-tag {
  color: var(--blue);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---- masthead ---- */

.masthead {
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 28px;
}

.brand { display: flex; align-items: center; gap: 16px; }

.brand-mark { width: 44px; height: 44px; color: var(--gold); flex: none; }

.masthead h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1;
  text-transform: uppercase;
}

.brand-sub {
  margin: 7px 0 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.mast-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.operator { display: flex; align-items: baseline; gap: 8px; }

.operator-label {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.operator-name { font-size: 15px; font-weight: 700; }

.operator-switch {
  background: none;
  border: none;
  padding: 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.operator-switch:hover { color: #fff; }

.operator-admin { color: var(--gold); }

.operator-admin:hover { color: #f0d15e; }

.mast-clock { display: flex; align-items: baseline; gap: 10px; }

.clock-time { font-family: var(--mono); font-size: 13px; color: rgba(255, 255, 255, 0.8); }

.clock-date {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.goldrule { height: 3px; background: var(--gold); }

/* ---- layout ---- */

main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 26px 28px 48px; }

.offline {
  background: #fbeae8;
  border: 1px solid rgba(179, 54, 44, 0.35);
  border-radius: 3px;
  color: var(--alert);
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 14px;
  margin-bottom: 18px;
}

.hidden { display: none; }

/* ---- stats strip ---- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 30px;
}

.stat {
  padding: 14px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-left: 1px solid var(--line-soft);
  border-top: 1px solid var(--line-soft);
  margin: -1px 0 0 -1px;
}

.stat-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat-value { font-family: var(--mono); font-size: 26px; font-weight: 500; color: var(--navy); }

/* ---- section headings ---- */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.section-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-head h2::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--gold);
  flex: none;
}

/* ---- machine board ---- */

.board {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 16px;
}

.board-empty {
  grid-column: 1 / -1;
  background: var(--paper);
  border: 1px dashed var(--line);
  border-radius: 3px;
  color: var(--muted);
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.machine {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top-width: 3px;
  border-radius: 3px;
  display: flex;
  flex-direction: column;
}

.machine.is-clear   { border-top-color: var(--ok); }
.machine.is-busy    { border-top-color: var(--gold); }
.machine.is-overdue { border-top-color: var(--alert); }

.machine-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 16px 2px;
}

.machine-name {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--navy);
}

.machine-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lamp { width: 8px; height: 8px; border-radius: 50%; flex: none; }

.is-clear   .lamp { background: var(--ok); }
.is-busy    .lamp { background: var(--gold); }
.is-overdue .lamp { background: var(--alert); animation: pulse 1.4s ease infinite; }

.is-clear   .machine-status { color: var(--ok); }
.is-busy    .machine-status { color: var(--gold-ink); }
.is-overdue .machine-status { color: var(--alert); }

.machine-specs {
  padding: 0 16px 11px;
  font-size: 12.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}

.machine-body { flex: 1; }

.machine-idle {
  padding: 16px;
  color: var(--muted);
  font-size: 13px;
  font-style: italic;
}

.session {
  padding: 11px 16px;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.session-user { font-weight: 700; }

.session-purpose { color: var(--muted); font-size: 13px; }

.session-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 3px 14px;
  margin-top: 2px;
}

.session-meta .overdue { color: var(--alert); font-weight: 600; }

.session-actions { display: flex; gap: 8px; margin-top: 6px; }

.machine-queue {
  padding: 9px 16px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.queue-chip {
  background: var(--gold-tint);
  border: 1px solid #e4d391;
  border-radius: 2px;
  color: var(--gold-ink);
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  display: inline-flex;
  gap: 7px;
  align-items: center;
}

.machine-foot { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--line-soft); }

/* ---- buttons ---- */

.btn {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 2px;
  border: 1px solid transparent;
  padding: 7px 14px;
  cursor: pointer;
}

.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }

.btn-primary:hover { background: var(--navy); border-color: var(--navy); }

.btn-ghost { background: var(--paper); border-color: #c3cbe0; color: var(--blue); }

.btn-ghost:hover { border-color: var(--blue); }

.btn-small, .btn-tiny { padding: 3px 10px; font-size: 11.5px; }

.btn-danger { color: var(--muted); }

.btn-danger:hover { border-color: var(--alert); color: var(--alert); }

.chip-x {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 12px;
  padding: 0;
  line-height: 1;
}

.chip-x:hover { color: var(--alert); }

/* ---- lower panels ---- */

.lower {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(360px, 1.6fr);
  gap: 16px;
  margin-top: 30px;
}

@media (max-width: 880px) { .lower { grid-template-columns: 1fr; } }

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 3px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
}

.panel-head h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
}

.panel-note { font-size: 11.5px; color: var(--muted); }

.waitlist { list-style: none; margin: 0; padding: 0; }

.waitlist li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
}

.waitlist li:last-child { border-bottom: none; }

.waitlist .who { font-weight: 700; }

.waitlist .what { color: var(--muted); font-size: 12.5px; }

.waitlist-empty { color: var(--muted); font-style: italic; font-size: 13px; padding: 16px; }

.log-scroll { overflow-x: auto; }

.runlog { width: 100%; border-collapse: collapse; font-size: 13px; }

.runlog th {
  text-align: left;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  padding: 9px 16px;
  border-bottom: 1px solid var(--line);
}

.runlog td { padding: 8px 16px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }

.runlog tr:last-child td { border-bottom: none; }

.runlog .mono { font-family: var(--mono); font-size: 12px; white-space: nowrap; color: var(--muted); }

.runlog .empty { color: var(--muted); font-style: italic; }

/* ---- footer ---- */

footer {
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding: 16px 28px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.foot-sep { color: var(--gold); }

/* ---- dialogs ---- */

dialog {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid #c3cbe0;
  border-top: 3px solid var(--gold);
  border-radius: 4px;
  box-shadow: 0 16px 48px rgba(13, 40, 106, 0.22);
  padding: 22px;
  width: min(440px, calc(100vw - 32px));
}

dialog::backdrop { background: rgba(13, 40, 106, 0.4); }

.dialog-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }

.dialog-mark { width: 22px; height: 22px; color: var(--gold); flex: none; }

dialog h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--navy);
}

.dialog-note { margin: 0 0 14px; font-size: 13px; color: var(--muted); }

.dialog-note strong { color: var(--ink); }

.dialog-note code { font-family: var(--mono); font-size: 12px; color: var(--blue); }

dialog label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 13px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

dialog .opt { text-transform: none; letter-spacing: 0.02em; font-weight: 400; }

dialog input,
dialog select {
  font: 14px var(--sans);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid #c3cbe0;
  border-radius: 2px;
  padding: 8px 10px;
}

dialog input:focus,
dialog select:focus { outline: 2px solid var(--blue); outline-offset: -1px; border-color: var(--blue); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

.dialog-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 14px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.dialog-divider::before,
.dialog-divider::after { content: ""; flex: 1; border-top: 1px solid var(--line); }

/* ---- admin ---- */

.dialog-sub {
  margin: 0 0 8px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.admin-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
}

.admin-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
}

.admin-list li:last-child { border-bottom: none; }

.admin-who { display: flex; align-items: baseline; gap: 8px; }

.admin-who .who { font-weight: 700; }

.admin-role { color: var(--muted); font-size: 12px; }

.badge-admin {
  background: var(--gold-tint);
  border: 1px solid #e4d391;
  border-radius: 2px;
  color: var(--gold-ink);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1px 6px;
}

.pin-change { margin: 4px 0 14px; }

.pin-change summary {
  cursor: pointer;
  font-size: 12.5px;
  color: var(--blue);
  margin-bottom: 10px;
}

.danger-zone {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding-top: 14px;
}

.danger-zone h4 {
  margin: 0 0 12px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--alert);
}

.danger-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 10px;
}

.btn-outline-danger { background: var(--paper); border-color: #d8a29c; color: var(--alert); white-space: nowrap; }

.btn-outline-danger:hover { border-color: var(--alert); background: #fbeae8; }

.btn-danger-solid { background: var(--alert); border-color: var(--alert); color: #fff; }

.btn-danger-solid:hover { background: #992e25; border-color: #992e25; }

.delete-warning {
  background: #fbeae8;
  border: 1px solid rgba(179, 54, 44, 0.35);
  border-radius: 3px;
  padding: 12px;
  font-size: 13px;
  color: var(--alert);
}

.delete-warning p { margin: 0 0 10px; }

.delete-warning strong { text-transform: none; }

@keyframes pulse { 50% { opacity: 0.25; } }

/* ---- responsive ---- */

@media (max-width: 680px) {
  .topbar { flex-direction: column; gap: 6px; padding: 10px 18px; }
  .masthead { flex-direction: column; align-items: flex-start; gap: 12px; padding: 18px; }
  .mast-side { align-items: flex-start; }
  main { padding: 18px 16px 40px; }
  .field-row { grid-template-columns: 1fr; }
}