/* Fonts, design tokens and components shared by the login page and the panel.
   The look follows the Commando Kieffer user panel (Zeus). */

@font-face {
  font-family: 'Marianne';
  src: url('../fonts/marianne/Marianne-Thin.woff2') format('woff2');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Marianne';
  src: url('../fonts/marianne/Marianne-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Marianne';
  src: url('../fonts/marianne/Marianne-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink:          #0F0E33;
  --ink-soft:     rgba(15, 14, 51, 0.65);
  --ink-muted:    rgba(15, 14, 51, 0.45);
  --line:         rgba(15, 14, 51, 0.12);
  --line-faint:   rgba(15, 14, 51, 0.06);
  --field-border: rgba(15, 14, 51, 0.15);
  --field-hover:  rgba(15, 14, 51, 0.35);
  --surface:      rgba(255, 255, 255, 0.6);

  --gradient-night:   linear-gradient(111.4deg, rgba(7, 7, 9, 1) 6.5%, rgba(27, 24, 113, 1) 93.2%);
  --gradient-page:    radial-gradient(circle 993px at 0.5% 50.5%, rgba(137, 171, 245, 0.37) 0%, rgba(245, 247, 252, 1) 100.2%);
  --gradient-online:  linear-gradient(109.6deg, rgba(61, 131, 97, 1) 11.2%, rgba(28, 103, 88, 1) 91.1%);
  --gradient-offline: radial-gradient(circle farthest-corner at 17.1% 22.8%, rgba(226, 24, 24, 1) 0%, rgba(160, 6, 6, 1) 90%);
  --gradient-warn:    radial-gradient(circle farthest-corner at 10% 20%, rgba(255, 209, 67, 1) 0%, rgba(255, 145, 83, 1) 90%);
  --gradient-teal:    linear-gradient(109.6deg, rgba(0, 0, 0, 1) 11.2%, rgba(11, 132, 145, 1) 91.1%);

  --online:  #3D8361;
  --offline: #D14841;
  --warn:    #D9822B;
  --info:    #1B1871;

  /* Read by the charts (static/js/panel/metrics.js); keep the colors in hex. */
  --cpu-color:   #2591FB;
  --ram-color:   #1B1871;
  --chart-grid:  rgba(15, 14, 51, 0.08);
  --chart-ticks: rgba(15, 14, 51, 0.45);

  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   18px;
  --radius-pill: 999px;

  --shadow-card:       rgba(15, 14, 51, 0.16) 0px 20px 40px -14px, rgba(15, 14, 51, 0.12) 0px 6px 16px -6px;
  --shadow-card-hover: rgba(15, 14, 51, 0.26) 0px 24px 44px -14px, rgba(15, 14, 51, 0.16) 0px 10px 20px -8px;
  --shadow-float:      rgba(15, 14, 51, 0.35) 0px 14px 28px -10px;

  --transition: 0.2s ease;

  --font-sans:  'Marianne', 'Segoe UI', system-ui, sans-serif;
  --font-serif: 'Spectral', Georgia, serif;
  --font-mono:  'Roboto Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection { background-color: var(--ink); color: #FFFFFF; }

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

code { font-family: var(--font-mono); font-size: 0.92em; }

/* Components below set their own display, which would override [hidden]. */
[hidden] { display: none !important; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.03em;
  padding: 0.7rem 1.6rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
a.btn { text-decoration: none; }

.btn-sm { padding: 0.45rem 1.1rem; font-size: 11px; }

.btn-solid {
  background-color: var(--ink);
  border-color: var(--ink);
  color: #FFFFFF;
  box-shadow: rgba(15, 14, 51, 0.35) 0px 10px 20px -10px;
}
.btn-solid:hover:not(:disabled) { background-color: transparent; color: var(--ink); box-shadow: none; }

.btn-outline { background-color: transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover:not(:disabled) { background-color: var(--ink); color: #FFFFFF; }

.btn-danger { background-color: transparent; border-color: var(--offline); color: var(--offline); }
.btn-danger:hover:not(:disabled) { background-color: var(--offline); color: #FFFFFF; }

/* For dark backgrounds (header, login) */
.btn-light { background-color: transparent; border-color: #FFFFFF; color: #FFFFFF; }
.btn-light:hover:not(:disabled) { background-color: #FFFFFF; color: #000000; }

/* Form controls */
label {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.01em;
}

input, textarea, select {
  width: 100%;
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 13px;
  color: var(--ink);
  background-color: #FFFFFF;
  border: 1px solid var(--field-border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  transition: var(--transition);
}
input:hover, textarea:hover, select:hover { border-color: var(--field-hover); }
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(15, 14, 51, 0.12);
}
input::placeholder, textarea::placeholder { color: var(--ink-muted); }
input:disabled, textarea:disabled, select:disabled { opacity: 0.55; cursor: not-allowed; }

textarea { resize: vertical; }

select {
  height: 2.65rem;
  padding-right: 2rem;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%230F0E33' stroke-width='1.5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 10px 6px;
}

/* Language switch, shown on the dark header and on the login card */
.lang-switch {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-pill);
}
.lang-option {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: gainsboro;
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}
.lang-option:hover { color: #FFFFFF; }
.lang-option.active { background-color: #FFFFFF; color: var(--ink); cursor: default; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

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