/*
 * EMP Watchdog: page frame, login and theme. Hand-written, no build step.
 * The dashboard styles (frontend/src/dashboard.css -> static/app/app.css)
 * use the variables defined here.
 *
 * Colour is reserved for status (ok/warn/alarm/unknown); everything else is grey.
 */

:root {
  color-scheme: light dark;

  --bg: #f5f5f3;
  --surface: #ffffff;
  --ink: #23262a;
  --ink-2: #545a61;
  --ink-3: #8a9097;
  --line: #d8dadd;
  --focus: #5b6470;

  --chart-band: #e3e5e8;
  --chart-outside: #f3f4f5;
  --chart-zone: #fbfbfb;
  --chart-hatch: #b6bbc1;
  --chart-mark: #383d43;
  --chart-missing: #7b8188;

  --status-ok: #57906a;
  --status-warn: #bb7b36;
  --status-alarm: #b0524a;
  --status-unknown: #8b9096;
  --status-ok-tint: #e4efe7;
  --status-warn-tint: #f4eadd;
  --status-alarm-tint: #f3e2e0;
  --status-unknown-tint: #e9eaec;
  --status-ok-strong: #3c6c4b;
  --status-warn-strong: #8a561c;
  --status-alarm-strong: #973c35;
  --status-unknown-strong: #656a70;

  --radius: 6px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181b;
    --surface: #1e2124;
    --ink: #e2e4e7;
    --ink-2: #a8adb3;
    --ink-3: #737980;
    --line: #34383d;
    --focus: #a8adb3;

    --chart-band: #2d3136;
    --chart-outside: #212428;
    --chart-zone: #1b1d20;
    --chart-hatch: #4b5157;
    --chart-mark: #d3d6da;
    --chart-missing: #8c9299;

    --status-ok: #6ea27c;
    --status-warn: #cc9154;
    --status-alarm: #cc6b62;
    --status-unknown: #8e949a;
    --status-ok-tint: #22302a;
    --status-warn-tint: #372c20;
    --status-alarm-tint: #3a2523;
    --status-unknown-tint: #2a2d31;
    --status-ok-strong: #8dc29b;
    --status-warn-strong: #deaa70;
    --status-alarm-strong: #e28b83;
    --status-unknown-strong: #a3a8ae;
  }
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.45;
}

a {
  color: inherit;
}

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

/* ------------------------------------------------------------ header */

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-brand {
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.site-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink-2);
  font-size: 0.95rem;
}

.site-user a {
  color: var(--ink);
}

/* ------------------------------------------------------------ main */

.site-main {
  max-width: 80rem;
  margin: 0 auto;
  padding: 1rem;
}

.flash-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.flash {
  padding: 0.6rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--ink-3);
  border-radius: var(--radius);
}

.flash-error,
.flash-danger {
  border-left-color: var(--status-alarm);
}

.flash-warning {
  border-left-color: var(--status-warn);
}

.flash-success {
  border-left-color: var(--status-ok);
}

/* ------------------------------------------------------------ buttons and inputs */

button,
input[type="submit"] {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.45rem 0.95rem;
  cursor: pointer;
}

button:hover,
input[type="submit"]:hover {
  border-color: var(--ink-3);
}

button:disabled {
  cursor: default;
  opacity: 0.6;
}

input[type="text"],
input[type="password"] {
  font: inherit;
  width: 100%;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.5rem 0.65rem;
}

/* ------------------------------------------------------------ login */

.login-card {
  max-width: 22rem;
  margin: 3rem auto;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.login-card h1 {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.form-field {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 1rem;
}

.form-field label {
  color: var(--ink-2);
  font-size: 0.9rem;
}

.form-errors {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--status-alarm-strong);
  font-size: 0.9rem;
}

.login-card input[type="submit"] {
  width: 100%;
  margin-top: 0.25rem;
}

@media (max-width: 30rem) {
  .site-main {
    padding: 0.75rem;
  }

  .login-card {
    margin: 1.5rem auto;
    padding: 1.1rem;
  }
}