/* Alfa-System theme overrides for Bootstrap 5.3 */
:root {
  --bs-success: #047857;
  --bs-success-rgb: 4, 120, 87;
  --bs-link-color: #047857;
  --bs-link-hover-color: #065f46;
  --bs-border-color: #88929e;
  --bs-secondary-color: #475569;
  --bs-font-sans-serif: "IBM Plex Sans", system-ui, sans-serif;
  --bs-font-monospace: "JetBrains Mono", ui-monospace, monospace;
  --as-green-soft: #f0fdf4;
  --gauge-scale: 0.72;
  --gauge-width: calc(200px * var(--gauge-scale));
  --gauge-height: calc(114px * var(--gauge-scale));
  --gauge-arc-width: calc(180px * var(--gauge-scale));
  --gauge-arc-height: calc(90px * var(--gauge-scale));
  --gauge-border: calc(9px * var(--gauge-scale));
}

html,
body {
  height: 100%;
}

body {
  min-height: 100dvh;
}

@media (min-height: 521px) and (min-width: 576px) {
  body {
    max-height: 100dvh;
    overflow: hidden;
  }

  .speedtest-main {
    overflow: hidden;
  }
}

@media (min-height: 800px) {
  :root {
    --gauge-scale: 0.82;
  }
}

@media (max-height: 700px) {
  :root {
    --gauge-scale: 0.62;
  }
}

@media (max-height: 600px) {
  :root {
    --gauge-scale: 0.52;
  }

  .speedtest-shell header {
    display: none;
  }
}

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1100;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  background: #fff;
  color: var(--bs-link-color);
  box-shadow: 0 0 0 2px var(--bs-success);
}

.hidden {
  display: none !important;
}

#privacy-warning span {
  color: var(--bs-success);
  font-weight: 600;
}

.connection-details {
  font-size: 1em;
  line-height: 1.4;
  color: var(--bs-secondary-color);
}

/* Speed gauge (custom visualization — not available in Bootstrap) */
.gauge-card.enabled {
  border-color: rgba(var(--bs-success-rgb), 0.35) !important;
  box-shadow: 0 0 0 3px rgba(var(--bs-success-rgb), 0.08) !important;
}

.gauge-wrap {
  position: relative;
  width: var(--gauge-width);
  height: var(--gauge-height);
  margin: 0 auto 0.15rem;
}

.gauge-wrap::before {
  content: "";
  position: absolute;
  top: calc(8px * var(--gauge-scale));
  left: calc(10px * var(--gauge-scale));
  width: var(--gauge-arc-width);
  height: var(--gauge-arc-height);
  border: var(--gauge-border) solid var(--bs-border-color);
  border-bottom: none;
  border-radius: calc(90px * var(--gauge-scale)) calc(90px * var(--gauge-scale)) 0 0;
  box-sizing: border-box;
}

.gauge-wrap::after {
  content: "";
  position: absolute;
  bottom: calc(6px * var(--gauge-scale));
  left: 50%;
  transform: translateX(-50%);
  width: calc(12px * var(--gauge-scale));
  height: calc(12px * var(--gauge-scale));
  background: var(--bs-border-color);
  border-radius: 50%;
  z-index: 3;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.gauge-card.enabled .gauge-wrap::after {
  background: var(--bs-success);
  box-shadow: 0 0 10px rgba(var(--bs-success-rgb), 0.45);
}

#download-gauge .progress,
#upload-gauge .progress {
  position: absolute !important;
  top: calc(8px * var(--gauge-scale)) !important;
  left: calc(10px * var(--gauge-scale)) !important;
  width: var(--gauge-arc-width) !important;
  height: var(--gauge-arc-height) !important;
  background: transparent !important;
  border: var(--gauge-border) solid rgba(var(--bs-success-rgb), 0.35) !important;
  border-bottom: none !important;
  border-radius: calc(90px * var(--gauge-scale)) calc(90px * var(--gauge-scale)) 0 0 !important;
  box-sizing: border-box;
  overflow: visible !important;
}

#download-gauge .speed,
#upload-gauge .speed {
  position: absolute;
  bottom: calc(10px * var(--gauge-scale));
  left: calc(50% - 1.5px * var(--gauge-scale));
  width: calc(3px * var(--gauge-scale));
  height: calc(80px * var(--gauge-scale));
  background: linear-gradient(to top, rgba(var(--bs-success-rgb), 0.12), var(--bs-success));
  transform-origin: bottom center;
  transform: rotate(calc(var(--speed-rotation, 0deg) - 90deg));
  transition: transform 0.1s ease-out;
  border-radius: 2px 2px 0 0;
  z-index: 2;
  opacity: 0.2;
}

.gauge-card.enabled .speed {
  opacity: 1;
  filter: drop-shadow(0 0 3px rgba(var(--bs-success-rgb), 0.55));
}

.gauge-number {
  font-family: var(--bs-font-monospace);
  font-size: clamp(1.65rem, 4.15vh, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--bs-secondary-color);
  transition: color 0.3s ease;
}

.gauge-card.enabled .gauge-number {
  color: var(--bs-success);
}

.gauge-unit,
.gauge-label {
  font-size: 1em;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--bs-secondary-color);
}

.gauge-label {
  font-size: 1em;
  letter-spacing: 0.1em;
  margin-top: 0.15rem;
}

.metric-val {
  font-family: var(--bs-font-monospace);
  font-size: clamp(1rem, 2.5vh, 1.15rem);
  font-weight: 700;
  line-height: 1;
}

.metric-unit,
.metric-lbl {
  font-size: 1em;
  text-transform: uppercase;
  color: var(--bs-secondary-color);
}

.metric-lbl {
  letter-spacing: 0.1em;
  margin-top: 0.1rem;
}

@media (prefers-reduced-motion: reduce) {
  #download-gauge .speed,
  #upload-gauge .speed {
    transition: none;
  }

  .gauge-wrap::after,
  .gauge-number {
    transition: none;
  }
}

@media (max-width: 575.98px), (max-height: 520px), (prefers-reduced-motion: reduce) {
  body {
    max-height: none;
    overflow-y: auto;
  }

  .speedtest-main {
    overflow: visible !important;
  }
}