/* ============================================================
   AlgoDevelop Cloud - base design system
   Shared by the USER site and the ADMIN site.
   The only thing each side changes is --accent.
   ============================================================ */

:root{
  /* surfaces */
  --bg:        #0E1014;
  --bg-soft:   #13161D;
  --panel:     #171B23;
  --panel-2:   #1D222C;
  --panel-3:   #232936;
  --line:      #272E3B;
  --line-soft: #1F2530;

  /* text */
  --text:  #E9ECF3;
  --muted: #99A3B7;
  --dim:   #6B7688;

  /* meaning */
  --green: #3FB950;
  --red:   #F0616D;
  --amber: #E3B341;
  --blue:  #5B8DEF;

  /* accent - overridden by app.css / admin.css */
  --accent:      #AB8B66;
  --accent-ink:  #14100B;
  --accent-soft: rgba(171,139,102,.15);
  --accent-line: rgba(171,139,102,.35);

  /* metrics */
  --sidebar: 244px;
  --topbar: 62px;
  --r-sm: 8px;
  --r:    12px;
  --r-lg: 16px;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Consolas, monospace;
}

*,*::before,*::after{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:14px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
h1,h2,h3,h4{ margin:0; font-weight:650; letter-spacing:-.01em; }
p{ margin:0; }

::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:transparent; }
::-webkit-scrollbar-thumb{ background:#2A313E; border-radius:10px; border:2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover{ background:#39424f; }

/* ====================== APP SHELL ====================== */

.shell{ display:flex; min-height:100vh; }

.sidebar{
  width:var(--sidebar); flex:0 0 var(--sidebar);
  background:var(--bg-soft);
  border-right:1px solid var(--line);
  display:flex; flex-direction:column;
  position:fixed; inset:0 auto 0 0; z-index:60;
}
.sidebar__brand{
  height:var(--topbar); flex:0 0 var(--topbar);
  display:flex; align-items:center; gap:10px;
  padding:0 18px; border-bottom:1px solid var(--line);
}
.brand__mark{
  width:30px; height:30px; border-radius:9px; flex:0 0 30px;
  display:grid; place-items:center;
  background:var(--accent); color:var(--accent-ink);
  font-weight:800; font-size:14px;
}
.brand__name{ font-weight:700; font-size:14.5px; letter-spacing:-.01em; }
.brand__sub{ font-size:10.5px; color:var(--dim); letter-spacing:.09em; text-transform:uppercase; margin-top:-3px; }

.sidebar__nav{ flex:1; overflow-y:auto; padding:14px 12px 20px; }
.nav__label{
  font-size:10.5px; text-transform:uppercase; letter-spacing:.11em;
  color:var(--dim); padding:16px 10px 7px; font-weight:600;
}
.nav__label:first-child{ padding-top:2px; }
.nav__item{
  display:flex; align-items:center; gap:11px;
  padding:9px 11px; border-radius:var(--r-sm);
  color:var(--muted); font-size:13.5px; font-weight:500;
  cursor:pointer; margin-bottom:1px; transition:background .12s,color .12s;
}
.nav__item:hover{ background:var(--panel); color:var(--text); }
.nav__item.is-active{ background:var(--accent-soft); color:var(--accent); font-weight:600; }
.nav__item.is-active .nav__ico{ opacity:1; }
.nav__ico{ width:17px; height:17px; flex:0 0 17px; opacity:.72; }
.nav__badge{
  margin-left:auto; background:var(--panel-3); color:var(--muted);
  font-size:10.5px; font-weight:650; padding:1px 7px; border-radius:20px;
}

.sidebar__foot{ border-top:1px solid var(--line); padding:12px; }

.main{ flex:1; margin-left:var(--sidebar); min-width:0; display:flex; flex-direction:column; }

.topbar{
  height:var(--topbar); flex:0 0 var(--topbar);
  display:flex; align-items:center; gap:14px;
  padding:0 24px; border-bottom:1px solid var(--line);
  background:rgba(14,16,20,.88); backdrop-filter:blur(10px);
  position:sticky; top:0; z-index:50;
}
.topbar__title{ font-size:15px; font-weight:650; }
.topbar__spacer{ flex:1; }
.burger{ display:none; background:none; border:0; color:var(--muted); cursor:pointer; padding:6px; }

.page{ padding:26px 24px 60px; max-width:1400px; width:100%; }
.page__head{ margin-bottom:22px; }
.page__title{ font-size:22px; font-weight:680; letter-spacing:-.02em; }
.page__hint{ color:var(--muted); font-size:13.5px; margin-top:5px; max-width:760px; }

/* ====================== BUILDING BLOCKS ====================== */

.card{
  background:var(--panel); border:1px solid var(--line);
  border-radius:var(--r); overflow:hidden;
}
.card__head{
  padding:15px 18px; border-bottom:1px solid var(--line-soft);
  display:flex; align-items:center; gap:12px;
}
.card__title{ font-size:14px; font-weight:640; }
.card__hint{ font-size:12.5px; color:var(--dim); margin-top:2px; }
.card__body{ padding:18px; }
.card__body--flush{ padding:0; }
.card__foot{ padding:12px 18px; border-top:1px solid var(--line-soft); background:var(--bg-soft); }

.grid{ display:grid; gap:16px; }
.grid--4{ grid-template-columns:repeat(4,1fr); }
.grid--3{ grid-template-columns:repeat(3,1fr); }
.grid--2{ grid-template-columns:repeat(2,1fr); }
.grid--2-1{ grid-template-columns:2fr 1fr; }
.grid--1-2{ grid-template-columns:1fr 2fr; }
.stack{ display:flex; flex-direction:column; gap:16px; }
.row{ display:flex; align-items:center; gap:10px; }
.row--wrap{ flex-wrap:wrap; }
.row--between{ justify-content:space-between; }
.row--top{ align-items:flex-start; }
.spacer{ flex:1; }

.tile{
  background:var(--panel); border:1px solid var(--line);
  border-radius:var(--r); padding:16px 17px;
}
.tile__label{ font-size:12px; color:var(--muted); font-weight:550; display:flex; align-items:center; gap:6px; }
.tile__value{ font-size:26px; font-weight:700; letter-spacing:-.025em; margin-top:7px; font-variant-numeric:tabular-nums; }
.tile__note{ font-size:11.5px; color:var(--dim); margin-top:4px; }
.tile__note.up{ color:var(--green); }
.tile__note.down{ color:var(--red); }

.t-muted{ color:var(--muted); }
.t-dim{ color:var(--dim); }
.t-green{ color:var(--green); }
.t-red{ color:var(--red); }
.t-amber{ color:var(--amber); }
.t-blue{ color:var(--blue); }
.t-accent{ color:var(--accent); }
.t-sm{ font-size:12.5px; }
.t-xs{ font-size:11.5px; }
.t-mono{ font-family:var(--mono); font-size:12px; }
.t-num{ font-variant-numeric:tabular-nums; }
.t-bold{ font-weight:650; }
.t-center{ text-align:center; }
.t-right{ text-align:right; }
.t-nowrap{ white-space:nowrap; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  height:36px; padding:0 15px; border-radius:var(--r-sm);
  border:1px solid var(--line); background:var(--panel-2); color:var(--text);
  font-size:13px; font-weight:580; cursor:pointer; white-space:nowrap;
  transition:background .12s,border-color .12s,opacity .12s;
}
.btn:hover{ background:var(--panel-3); border-color:#333c4b; }
.btn:disabled{ opacity:.45; cursor:not-allowed; }
.btn--primary{ background:var(--accent); border-color:var(--accent); color:var(--accent-ink); }
.btn--primary:hover{ filter:brightness(1.08); background:var(--accent); border-color:var(--accent); }
.btn--ghost{ background:transparent; }
.btn--danger{ background:rgba(240,97,109,.12); border-color:rgba(240,97,109,.4); color:var(--red); }
.btn--danger:hover{ background:rgba(240,97,109,.2); border-color:rgba(240,97,109,.6); }
.btn--sm{ height:30px; padding:0 11px; font-size:12px; }
.btn--lg{ height:44px; padding:0 22px; font-size:14px; }
.btn--block{ width:100%; }
.btn--icon{ width:36px; padding:0; }

.badge{
  display:inline-flex; align-items:center; gap:5px;
  padding:2px 9px; border-radius:20px;
  font-size:11.5px; font-weight:620; line-height:1.7;
  background:var(--panel-3); color:var(--muted); border:1px solid transparent;
  white-space:nowrap;
}
.badge--green{ background:rgba(63,185,80,.13); color:var(--green); border-color:rgba(63,185,80,.28); }
.badge--red{   background:rgba(240,97,109,.13); color:var(--red);  border-color:rgba(240,97,109,.28); }
.badge--amber{ background:rgba(227,179,65,.13); color:var(--amber); border-color:rgba(227,179,65,.28); }
.badge--blue{  background:rgba(91,141,239,.13); color:var(--blue);  border-color:rgba(91,141,239,.28); }
.badge--accent{ background:var(--accent-soft); color:var(--accent); border-color:var(--accent-line); }

.dot{ width:7px; height:7px; border-radius:50%; background:var(--dim); flex:0 0 7px; display:inline-block; }
.dot--green{ background:var(--green); box-shadow:0 0 0 3px rgba(63,185,80,.16); }
.dot--red{ background:var(--red); box-shadow:0 0 0 3px rgba(240,97,109,.16); }
.dot--amber{ background:var(--amber); box-shadow:0 0 0 3px rgba(227,179,65,.16); }
.dot--dim{ background:#4A5262; }

.pill{
  display:inline-flex; align-items:center; gap:6px; padding:4px 10px;
  border:1px solid var(--line); border-radius:20px; background:var(--panel-2);
  font-size:12px; color:var(--muted); cursor:pointer;
}
.pill.is-on{ background:var(--accent-soft); border-color:var(--accent-line); color:var(--accent); }

.table-wrap{ overflow-x:auto; }
table.tbl{ width:100%; border-collapse:collapse; font-size:13px; }
.tbl th{
  text-align:left; font-size:11px; font-weight:640; color:var(--dim);
  text-transform:uppercase; letter-spacing:.07em;
  padding:11px 14px; border-bottom:1px solid var(--line);
  background:var(--bg-soft); white-space:nowrap;
}
.tbl td{ padding:11px 14px; border-bottom:1px solid var(--line-soft); vertical-align:middle; }
.tbl tbody tr:hover{ background:rgba(255,255,255,.022); }
.tbl tbody tr:last-child td{ border-bottom:0; }
.tbl .num{ font-variant-numeric:tabular-nums; text-align:right; }
.tbl--click tbody tr{ cursor:pointer; }

.field{ margin-bottom:16px; }
.field__label{ display:block; font-size:12.5px; font-weight:580; margin-bottom:6px; }
.field__hint{ font-size:11.5px; color:var(--dim); margin-top:5px; line-height:1.5; }
.input,.select,.textarea{
  width:100%; height:38px; padding:0 12px;
  background:var(--bg); border:1px solid var(--line); border-radius:var(--r-sm);
  color:var(--text); font-size:13.5px; font-family:inherit; outline:none;
  transition:border-color .12s, box-shadow .12s;
}
.textarea{ height:auto; min-height:92px; padding:10px 12px; resize:vertical; line-height:1.6; }
.input:focus,.select:focus,.textarea:focus{ border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
.input::placeholder,.textarea::placeholder{ color:#5A6273; }
.select{ appearance:none; cursor:pointer; padding-right:32px; }
.input--sm{ height:30px; font-size:12.5px; padding:0 9px; }

.switch{ position:relative; display:inline-block; width:38px; height:21px; flex:0 0 38px; cursor:pointer; }
.switch input{ opacity:0; width:0; height:0; }
.switch__track{ position:absolute; inset:0; background:#333B49; border-radius:20px; transition:background .15s; }
.switch__track::after{
  content:""; position:absolute; left:3px; top:3px; width:15px; height:15px;
  background:#fff; border-radius:50%; transition:transform .15s;
}
.switch input:checked + .switch__track{ background:var(--accent); }
.switch input:checked + .switch__track::after{ transform:translateX(17px); }

.check{ display:flex; align-items:flex-start; gap:9px; cursor:pointer; font-size:13px; }
.check input{ margin-top:3px; accent-color:var(--accent); width:15px; height:15px; }

.setting-row{
  display:flex; align-items:center; gap:16px;
  padding:14px 0; border-bottom:1px solid var(--line-soft);
}
.setting-row:last-child{ border-bottom:0; }
.setting-row__text{ flex:1; min-width:0; }
.setting-row__name{ font-size:13.5px; font-weight:560; }
.setting-row__hint{ font-size:12px; color:var(--dim); margin-top:2px; }
.setting-row__ctl{ flex:0 0 auto; width:190px; }
.setting-row__ctl--narrow{ width:auto; }

.alert{
  display:flex; gap:11px; padding:13px 15px; border-radius:var(--r);
  border:1px solid var(--line); background:var(--panel-2); font-size:13px;
}
.alert__ico{ flex:0 0 18px; margin-top:1px; }
.alert--warn{ background:rgba(227,179,65,.08); border-color:rgba(227,179,65,.3); }
.alert--danger{ background:rgba(240,97,109,.08); border-color:rgba(240,97,109,.3); }
.alert--info{ background:rgba(91,141,239,.08); border-color:rgba(91,141,239,.3); }
.alert--accent{ background:var(--accent-soft); border-color:var(--accent-line); }

.bar{ height:6px; background:var(--panel-3); border-radius:20px; overflow:hidden; }
.bar__fill{ height:100%; background:var(--accent); border-radius:20px; transition:width .3s; }
.bar__fill--green{ background:var(--green); }
.bar__fill--amber{ background:var(--amber); }
.bar__fill--red{ background:var(--red); }

.empty{ padding:44px 20px; text-align:center; color:var(--dim); }
.empty__title{ font-size:14px; color:var(--muted); font-weight:580; margin-bottom:5px; }
.empty__hint{ font-size:12.5px; max-width:380px; margin:0 auto; }

.tabs{ display:flex; gap:2px; border-bottom:1px solid var(--line); margin-bottom:20px; overflow-x:auto; }
.tab{
  padding:9px 14px; font-size:13px; font-weight:560; color:var(--muted);
  cursor:pointer; border:0; border-bottom:2px solid transparent; white-space:nowrap; background:none;
}
.tab:hover{ color:var(--text); }
.tab.is-active{ color:var(--accent); border-bottom-color:var(--accent); }

.modal-back{
  position:fixed; inset:0; background:rgba(6,8,11,.72); backdrop-filter:blur(3px);
  z-index:200; display:none; align-items:center; justify-content:center; padding:24px;
}
.modal-back.is-open{ display:flex; }
.modal{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--r-lg);
  width:100%; max-width:520px; max-height:88vh; overflow:auto; box-shadow:var(--shadow);
}
.modal--wide{ max-width:860px; }
.modal__head{ padding:18px 20px; border-bottom:1px solid var(--line-soft); display:flex; align-items:center; gap:12px; }
.modal__body{ padding:20px; }
.modal__foot{ padding:14px 20px; border-top:1px solid var(--line-soft); display:flex; gap:10px; justify-content:flex-end; background:var(--bg-soft); }
.modal__x{ background:none; border:0; color:var(--dim); cursor:pointer; padding:4px; margin-left:auto; font-size:20px; line-height:1; }
.modal__x:hover{ color:var(--text); }

.toasts{ position:fixed; right:20px; bottom:20px; z-index:300; display:flex; flex-direction:column; gap:9px; }
.toast{
  background:var(--panel-2); border:1px solid var(--line); border-left:3px solid var(--accent);
  border-radius:var(--r-sm); padding:11px 15px; font-size:13px; box-shadow:var(--shadow);
  min-width:230px; max-width:380px; animation:toastIn .18s ease-out;
}
.toast--ok{ border-left-color:var(--green); }
.toast--err{ border-left-color:var(--red); }
@keyframes toastIn{ from{ opacity:0; transform:translateY(8px); } to{ opacity:1; transform:none; } }

.sep{ height:1px; background:var(--line-soft); margin:18px 0; }
.skel{ background:linear-gradient(90deg,var(--panel-2) 25%,var(--panel-3) 50%,var(--panel-2) 75%);
  background-size:200% 100%; animation:skel 1.2s infinite; border-radius:6px; height:14px; }
@keyframes skel{ from{ background-position:200% 0; } to{ background-position:-200% 0; } }
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}

/* ====================== AUTH PAGES ====================== */
.auth{ min-height:100vh; display:grid; place-items:center; padding:24px; }
.auth__box{ width:100%; max-width:400px; }
.auth__brand{ display:flex; align-items:center; gap:11px; justify-content:center; margin-bottom:26px; }
.auth__card{ background:var(--panel); border:1px solid var(--line); border-radius:var(--r-lg); padding:28px; }
.auth__title{ font-size:19px; font-weight:670; margin-bottom:5px; }
.auth__hint{ font-size:13px; color:var(--muted); margin-bottom:22px; }
.auth__foot{ text-align:center; margin-top:18px; font-size:12.5px; color:var(--dim); }
.auth__demo{
  margin-top:16px; padding:12px 14px; border:1px dashed var(--line);
  border-radius:var(--r-sm); font-size:12px; color:var(--muted); line-height:1.7;
}

/* ====================== RESPONSIVE ====================== */
@media (max-width:1180px){
  .grid--4{ grid-template-columns:repeat(2,1fr); }
  .grid--2-1,.grid--1-2,.grid--3{ grid-template-columns:1fr; }
}
@media (max-width:860px){
  .sidebar{ transform:translateX(-100%); transition:transform .2s; }
  .sidebar.is-open{ transform:none; box-shadow:var(--shadow); }
  .main{ margin-left:0; }
  .burger{ display:block; }
  .page{ padding:18px 14px 60px; }
  /* the top bar must never be what makes the page scroll sideways:
     let the title shrink and drop the rigid spacer */
  .topbar{ padding:0 12px; gap:8px; }
  .topbar__title{ flex:1 1 auto; min-width:0; font-size:14px;
                  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .topbar__spacer{ display:none; }
  .grid--4,.grid--2{ grid-template-columns:1fr; }
  .setting-row{ flex-direction:column; align-items:flex-start; gap:9px; }
  .setting-row__ctl{ width:100%; }
}
.scrim{ position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:55; display:none; }
.scrim.is-open{ display:block; }
@media (min-width:861px){ .scrim{ display:none !important; } }