/* ============================================================
   FrostByte - Winter Blue theme
   Palette:
     --ice-050  #f2f7fc   frost background
     --ice-100  #e3eef8   panel wash
     --ice-300  #b9d7ee   ice accent
     --glacier  #2f6fb8   primary glacier blue
     --glacier-deep #1f4e86
     --midnight #0d2440   sidebar navy
   Type: Sora (display) / Inter (body)
   Signature: aurora gradient hairline on the sidebar edge & card tops
   ============================================================ */

:root {
  --ice-050: #f2f7fc;
  --ice-100: #e3eef8;
  --ice-200: #cfe3f4;
  --ice-300: #b9d7ee;
  --glacier: #2f6fb8;
  --glacier-deep: #1f4e86;
  --midnight: #0d2440;
  --midnight-soft: #14324f;
  --snow: #ffffff;
  --ink: #1c2b3a;
  --ink-muted: #5b7186;
  --aurora: linear-gradient(90deg, #6fd3f7 0%, #4d9de0 45%, #7f9cf5 100%);

  --bs-primary: var(--glacier);
  --bs-primary-rgb: 47, 111, 184;
  --bs-body-bg: var(--ice-050);
  --bs-body-color: var(--ink);
  --bs-border-radius: .65rem;
}

html, body { height: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(111, 211, 247, .16), transparent 60%),
    var(--ice-050);
  color: var(--ink);
}
h1, h2, h3, h4, h5, .fb-brand-text { font-family: 'Sora', 'Inter', sans-serif; }

/* ---------- shell layout ---------- */
.fb-shell { display: flex; min-height: 100vh; }

.fb-sidebar {
  width: 250px;
  flex: 0 0 250px;
  background: linear-gradient(180deg, var(--midnight) 0%, var(--midnight-soft) 100%);
  color: #cfe0f2;
  padding: 1.25rem 1rem;
  position: sticky; top: 0; height: 100vh;
  border-right: 1px solid rgba(255,255,255,.06);
}
.fb-sidebar::after {           /* aurora hairline signature */
  content: "";
  position: absolute; top: 0; right: -1px; bottom: 0; width: 2px;
  background: var(--aurora);
  opacity: .8;
}

.fb-brand {
  display: flex; align-items: center; gap: .65rem;
  color: #fff; text-decoration: none;
  padding: .35rem .5rem 1.1rem .5rem;
}
.fb-brand-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--aurora);
  color: var(--midnight); font-size: 1.25rem;
  box-shadow: 0 4px 14px rgba(79, 158, 224, .45);
}
.fb-brand-text { font-size: 1.25rem; font-weight: 700; letter-spacing: .02em; }

.fb-nav-label {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .14em;
  color: #7e9ab8; margin: 1.1rem .5rem .35rem;
}
.fb-nav-link {
  display: flex; align-items: center; gap: .7rem;
  color: #c3d6ea; text-decoration: none;
  padding: .55rem .75rem; border-radius: .55rem;
  font-size: .92rem; font-weight: 500;
  transition: background .15s ease, color .15s ease;
}
.fb-nav-link i { font-size: 1rem; opacity: .85; }
.fb-nav-link:hover { background: rgba(255,255,255,.07); color: #fff; }

.fb-userbox {
  display: flex; align-items: center; gap: .6rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: .75rem; padding: .6rem .7rem; margin-top: 1rem;
}
.fb-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--ice-300); color: var(--midnight);
  display: grid; place-items: center; font-weight: 700; font-size: .8rem;
}
.fb-role { font-size: .7rem; color: #8fb2d6; text-transform: capitalize; }
.fb-logout { color: #9fc0e2; border: 0; }
.fb-logout:hover { color: #fff; }

/* ---------- main column ---------- */
.fb-main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.fb-topbar {
  padding: 1.35rem 2rem .9rem;
  border-bottom: 1px solid var(--ice-200);
  background: rgba(255,255,255,.55);
  backdrop-filter: blur(6px);
}
.fb-page-title { font-size: 1.35rem; font-weight: 600; margin: 0; color: var(--midnight); }
.fb-content { padding: 1.75rem 2rem 3rem; max-width: 1320px; width: 100%; }

/* ---------- cards ---------- */
.card {
  border: 1px solid var(--ice-200);
  border-radius: .9rem;
  box-shadow: 0 6px 18px rgba(31, 78, 134, .07);
  overflow: hidden;
}
.card::before {                /* aurora top hairline */
  content: "";
  display: block; height: 3px;
  background: var(--aurora);
  opacity: .55;
}
.card.fb-plain::before { display: none; }
.card-header {
  background: var(--snow);
  border-bottom: 1px solid var(--ice-100);
  font-family: 'Sora', sans-serif; font-weight: 600; color: var(--midnight);
  padding: .9rem 1.25rem;
}
.card-body { padding: 1.25rem; }

/* ---------- tables ---------- */
.table { --bs-table-hover-bg: var(--ice-050); margin-bottom: 0; }
.table thead th {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--ink-muted); border-bottom: 2px solid var(--ice-200);
  padding: .7rem 1rem; background: #fbfdff;
}
.table tbody td { padding: .8rem 1rem; vertical-align: middle; }

/* ---------- buttons ---------- */
.btn-primary {
  --bs-btn-bg: var(--glacier); --bs-btn-border-color: var(--glacier);
  --bs-btn-hover-bg: var(--glacier-deep); --bs-btn-hover-border-color: var(--glacier-deep);
  --bs-btn-active-bg: var(--glacier-deep);
  box-shadow: 0 3px 10px rgba(47, 111, 184, .3);
}
.btn-outline-primary { --bs-btn-color: var(--glacier); --bs-btn-border-color: var(--glacier); --bs-btn-hover-bg: var(--glacier); }

/* ---------- status pills ---------- */
.fb-status { display: inline-flex; align-items: center; gap: .4rem; font-size: .78rem; font-weight: 600; padding: .28rem .7rem; border-radius: 2rem; }
.fb-status::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }
.fb-status.running        { background: #ddf5e7; color: #157347; }
.fb-status.starting,
.fb-status.stopping,
.fb-status.installing     { background: #fff3d6; color: #9a6b00; }
.fb-status.offline        { background: var(--ice-100); color: var(--ink-muted); }
.fb-status.install_failed { background: #fbe1e1; color: #b02a37; }
.fb-status.suspended      { background: #fbe1e1; color: #b02a37; }
.fb-status.online         { background: #ddf5e7; color: #157347; }

/* ---------- console ---------- */
.fb-console {
  background: #0a1626; color: #cfe3f4;
  border-radius: .75rem;
  font-family: ui-monospace, 'Cascadia Mono', Menlo, monospace;
  font-size: .82rem; line-height: 1.5;
  height: 420px; overflow-y: auto;
  padding: 1rem 1.1rem;
  border: 1px solid #1c3a5e;
}
.fb-console .line-system { color: #6fd3f7; }
.fb-console .line-input  { color: #9ff5c0; }
.fb-console .line-status { color: #7f9cf5; font-style: italic; }

/* ---------- stat tiles ---------- */
.fb-stat {
  background: var(--snow); border: 1px solid var(--ice-200); border-radius: .9rem;
  padding: 1.1rem 1.25rem; height: 100%;
  box-shadow: 0 4px 12px rgba(31,78,134,.06);
}
.fb-stat .value { font-family: 'Sora', sans-serif; font-size: 1.7rem; font-weight: 700; color: var(--midnight); }
.fb-stat .label { font-size: .78rem; color: var(--ink-muted); text-transform: uppercase; letter-spacing: .08em; }
.fb-stat .icon {
  width: 42px; height: 42px; border-radius: .75rem;
  background: var(--ice-100); color: var(--glacier);
  display: grid; place-items: center; font-size: 1.2rem;
}

/* ---------- forms ---------- */
.form-label { font-weight: 600; font-size: .85rem; color: var(--midnight); }
.form-text { color: var(--ink-muted); }
.form-control, .form-select { border-color: var(--ice-200); padding: .55rem .8rem; }
.form-control:focus, .form-select:focus { border-color: var(--glacier); box-shadow: 0 0 0 .2rem rgba(47,111,184,.15); }
code, .fb-mono { font-family: ui-monospace, Menlo, monospace; font-size: .85em; }
pre.fb-script { background: var(--ice-050); border: 1px solid var(--ice-200); border-radius: .5rem; padding: .75rem; }

/* ---------- auth pages ---------- */
.fb-auth-bg {
  min-height: 100vh; display: grid; place-items: center;
  background:
    radial-gradient(900px 480px at 20% 0%, rgba(111,211,247,.25), transparent 55%),
    radial-gradient(800px 420px at 100% 100%, rgba(127,156,245,.2), transparent 55%),
    var(--midnight);
  padding: 2rem 1rem;
}
.fb-auth-card {
  width: 100%; max-width: 430px;
  background: var(--snow); border-radius: 1.1rem;
  box-shadow: 0 24px 60px rgba(4, 16, 32, .5);
  padding: 2.4rem 2.2rem;
}
.fb-auth-card::before { display: none; }

/* ---------- misc ---------- */
.fb-empty { text-align: center; color: var(--ink-muted); padding: 3.5rem 1rem; }
.fb-empty i { font-size: 2.4rem; color: var(--ice-300); display: block; margin-bottom: .75rem; }

@media (max-width: 991px) {
  .fb-shell { flex-direction: column; }
  .fb-sidebar { width: 100%; flex-basis: auto; height: auto; position: static; }
  .fb-sidebar::after { display: none; }
  .fb-content, .fb-topbar { padding-left: 1rem; padding-right: 1rem; }
}