/* Reset + base element styling. */

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

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#app {
  height: 100vh;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--sp-3);
  font-weight: 600;
  letter-spacing: -0.01em;
}

code,
pre,
.mono {
  font-family: var(--font-mono);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
  border: 2px solid var(--bg-base);
}
::-webkit-scrollbar-thumb:hover {
  background: #3a5066;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font: inherit;
  font-weight: 500;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast);
}
.btn:hover {
  background: var(--bg-hover);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--bg-hover);
}
.btn-danger {
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover {
  background: var(--danger-soft);
}

/* Global top progress bar — visible whenever an HTTP request is in flight. */
#global-loading {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  z-index: 9999;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent) 40%,
    var(--accent) 60%,
    transparent
  );
  pointer-events: none;
  transition: opacity 0.2s ease;
}
#global-loading.on {
  opacity: 1;
  animation: global-loading-slide 1s linear infinite;
}
@keyframes global-loading-slide {
  0% {
    transform: translateX(-100%) scaleX(0.6);
  }
  100% {
    transform: translateX(100%) scaleX(0.6);
  }
}

/* Inputs */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.field label {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  font-weight: 500;
}
.input {
  font: inherit;
  width: 100%;
  padding: var(--sp-2) var(--sp-3);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: border-color var(--dur-fast);
}
.input:focus {
  outline: none;
  border-color: var(--border-focus);
}
.input::placeholder {
  color: var(--text-muted);
}

/* Utility */
.muted {
  color: var(--text-muted);
}
.row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.spacer {
  flex: 1;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 2px var(--sp-2);
  border-radius: 999px;
  font-size: var(--fs-xs);
  font-weight: 600;
  background: var(--bg-active);
  color: var(--text-secondary);
}
.hidden {
  display: none !important;
}