/*
 * Server Manager - visual system
 *
 * The guiding idea: a healthy server should look boring. Colour is reserved
 * for things that need a human, so a calm screen reads as "nothing to do"
 * without anyone having to interpret a wall of green badges.
 */

:root {
  color-scheme: dark;

  --ink: #0e1620;
  --panel: #15202c;
  --panel-raised: #1b2836;
  --rule: #263545;
  --rule-soft: #1f2d3a;

  --text: #dce3ea;
  --text-dim: #9aa9b7;
  --text-mute: #70808f;

  --amber: #e0a73b;
  --alarm: #d55a52;
  --trace: #56909f;

  --rail-width: 13rem;

  --step--1: 0.8125rem;
  --step-0: 0.9375rem;
  --step-1: 1.0625rem;
  --step-2: 1.375rem;
  --step-3: 1.875rem;

  --sans: "Segoe UI", Roboto, "Helvetica Neue", Ubuntu, system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.5;
  /* Digits must line up column to column; this is what makes a table of
     numbers readable without resorting to a monospace face. */
  font-variant-numeric: tabular-nums;
}

a {
  color: var(--text);
  text-decoration-color: var(--rule);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-color: var(--trace);
}

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

/* ---------- shell ---------- */

.shell {
  display: grid;
  grid-template-columns: var(--rail-width) minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  border-right: 1px solid var(--rule);
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  background: var(--panel);
}

.brand {
  padding: 0 1.25rem;
  display: block;
  text-decoration: none;
}

.brand-mark {
  font-size: var(--step-1);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-host {
  margin: 0.15rem 0 0;
  font-size: var(--step--1);
  color: var(--text-mute);
  overflow-wrap: anywhere;
}

.rail-nav {
  display: flex;
  flex-direction: column;
}

.rail-nav a {
  padding: 0.5rem 1.25rem;
  text-decoration: none;
  color: var(--text-dim);
  border-left: 2px solid transparent;
}

.rail-nav a:hover {
  color: var(--text);
  background: var(--panel-raised);
}

.rail-nav a[aria-current="page"] {
  color: var(--text);
  border-left-color: var(--trace);
  background: var(--panel-raised);
}

.rail-foot {
  margin-top: auto;
  padding: 0 1.25rem;
  font-size: var(--step--1);
  color: var(--text-mute);
}

.rail-foot form {
  margin: 0 0 0.5rem;
}

.main {
  min-width: 0;
  padding: 1.75rem clamp(1rem, 3vw, 2.5rem) 3rem;
  max-width: 76rem;
}

/* ---------- the verdict line ---------- */

.verdict {
  border-left: 3px solid var(--rule);
  padding: 0 0 0 1rem;
  margin: 0 0 2rem;
}

.verdict h1 {
  font-size: var(--step-3);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 34ch;
}

.verdict p {
  margin: 0.4rem 0 0;
  color: var(--text-dim);
  font-size: var(--step-0);
}

.verdict[data-severity="warn"] {
  border-left-color: var(--amber);
}

.verdict[data-severity="alarm"] {
  border-left-color: var(--alarm);
}

.verdict[data-severity="alarm"] h1 {
  color: #f0b9b5;
}

/* ---------- sections ---------- */

.section {
  border-top: 1px solid var(--rule-soft);
  padding-top: 1.25rem;
  margin-top: 2rem;
}

.section:first-of-type {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-head h2 {
  font-size: var(--step-1);
  font-weight: 600;
  margin: 0;
}

.section-note {
  font-size: var(--step--1);
  color: var(--text-mute);
  margin: 0;
}

/* ---------- gauges ---------- */

.gauges {
  display: grid;
  gap: 0.9rem;
}

.gauge {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
}

.gauge-name {
  color: var(--text-dim);
  font-size: var(--step--1);
  overflow-wrap: anywhere;
}

.gauge-track {
  height: 6px;
  background: var(--panel-raised);
  border-radius: 1px;
  overflow: hidden;
}

.gauge-fill {
  display: block;
  height: 100%;
  background: var(--text-mute);
  transition: width 0.4s ease;
}

.gauge-fill[data-level="warn"] {
  background: var(--amber);
}

.gauge-fill[data-level="crit"] {
  background: var(--alarm);
}

.gauge-value {
  font-size: var(--step--1);
  color: var(--text);
  white-space: nowrap;
}

.gauge-value span {
  color: var(--text-mute);
}

/* ---------- traces ---------- */

.traces {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
}

.trace-name {
  font-size: var(--step--1);
  color: var(--text-dim);
  margin: 0 0 0.35rem;
  display: flex;
  justify-content: space-between;
}

.spark {
  width: 100%;
  height: 44px;
  display: block;
}

.spark-line {
  fill: none;
  stroke: var(--trace);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
}

.spark-area {
  fill: color-mix(in srgb, var(--trace) 16%, transparent);
  stroke: none;
}

/* ---------- tables ---------- */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
}

th {
  text-align: left;
  font-weight: 500;
  color: var(--text-mute);
  padding: 0 0.75rem 0.5rem 0;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

td {
  padding: 0.6rem 0.75rem 0.6rem 0;
  border-bottom: 1px solid var(--rule-soft);
  vertical-align: middle;
}

th.num,
td.num {
  text-align: right;
  padding-right: 1.25rem;
}

tbody tr:hover td {
  background: var(--panel);
}

.cell-name {
  color: var(--text);
  font-weight: 500;
}

.cell-sub {
  color: var(--text-mute);
  display: block;
  margin-top: 0.1rem;
  overflow-wrap: anywhere;
}

.project-row td {
  border-bottom: 0;
  padding-top: 1.25rem;
  color: var(--text-mute);
}

/* State marker: a square, not a glowing dot. Running states stay neutral
   so only the exceptions draw the eye. */
.state {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.state::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--text-mute);
  flex: none;
}

.state[data-state="running"]::before {
  background: var(--trace);
}

.state[data-state="stopped"]::before,
.state[data-state="dead"]::before {
  background: var(--alarm);
}

.state[data-state="restarting"]::before,
.state[data-state="paused"]::before {
  background: var(--amber);
}

.state-fail {
  color: #f0b9b5;
}

/* ---------- controls ---------- */

.btn {
  font: inherit;
  font-size: var(--step--1);
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
}

.btn:hover {
  color: var(--text);
  border-color: var(--text-mute);
}

.btn-danger:hover {
  color: #f0b9b5;
  border-color: var(--alarm);
}

.btn-primary {
  color: var(--ink);
  background: var(--text);
  border-color: var(--text);
  font-weight: 500;
}

.btn-primary:hover {
  background: #fff;
  color: var(--ink);
}

.actions {
  display: flex;
  gap: 0.35rem;
  justify-content: flex-end;
}

.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-size: var(--step--1);
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

input[type="text"],
input[type="url"],
input[type="number"],
input[type="password"] {
  font: inherit;
  font-size: var(--step-0);
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.45rem 0.6rem;
  min-width: 0;
}

input:focus {
  border-color: var(--trace);
}

/* ---------- messages ---------- */

.notice,
.inline-error {
  font-size: var(--step--1);
  border-left: 2px solid var(--rule);
  padding: 0.5rem 0.75rem;
  margin: 0 0 1rem;
  background: var(--panel);
}

.notice[data-kind="error"],
.inline-error {
  border-left-color: var(--alarm);
  color: #f0b9b5;
}

.empty {
  color: var(--text-mute);
  padding: 1.5rem 0;
  margin: 0;
  max-width: 48ch;
}

/* ---------- logs ---------- */

.logs {
  background: #0a1017;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.9rem 1rem;
  max-height: 60vh;
  overflow: auto;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 0;
  color: #c6d2dd;
}

/* ---------- loading ---------- */

.is-loading {
  opacity: 0.55;
  transition: opacity 0.15s ease;
}

/* ---------- sign in ---------- */

.signin {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.signin-card {
  width: min(22rem, 100%);
}

.signin-card h1 {
  font-size: var(--step-2);
  font-weight: 600;
  margin: 0 0 0.35rem;
}

.signin-card p.lede {
  color: var(--text-mute);
  font-size: var(--step--1);
  margin: 0 0 1.5rem;
}

.signin-card label {
  margin-top: 0.9rem;
}

.signin-card input {
  width: 100%;
}

.signin-card button {
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.5rem;
}

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

@media (max-width: 48rem) {
  .shell {
    grid-template-columns: 1fr;
  }

  .rail {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    padding: 1rem 0;
    gap: 1rem;
  }

  .rail-nav {
    flex-direction: row;
    overflow-x: auto;
  }

  .rail-nav a {
    border-left: 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
  }

  .rail-nav a[aria-current="page"] {
    border-left: 0;
    border-bottom-color: var(--trace);
  }

  .rail-foot {
    margin-top: 0;
  }

  .gauge {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    grid-template-areas:
      "name track"
      ". value";
    row-gap: 0.3rem;
  }

  .gauge-name {
    grid-area: name;
  }
  .gauge-track {
    grid-area: track;
  }
  .gauge-value {
    grid-area: value;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}