/* ════════════════════════════════════════════════════════════════════
 * atlas-settings.css — Atlas settings overlay.
 *
 * Keeps settings aligned with the Atlas workspace language: a quiet
 * sheet, dense spacing, subtle separators, and restrained controls
 * instead of oversized generic cards.
 * ════════════════════════════════════════════════════════════════════ */

.atlas-settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
}

.atlas-settings-overlay.hidden {
  display: none;
}

.atlas-settings-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--atlas-overlay) 88%, transparent);
  backdrop-filter: blur(8px);
}

.atlas-settings-card {
  position: relative;
  width: min(1180px, calc(100vw - 28px));
  max-height: calc(100vh - 28px);
  margin: 14px auto;
  overflow: hidden;
  border-radius: 18px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--atlas-bg) 96%, var(--atlas-accent) 4%) 0%, var(--atlas-bg) 100%);
  border: 1px solid color-mix(in srgb, var(--atlas-accent) 12%, var(--atlas-surface-b));
  box-shadow: var(--atlas-shadow-lg);
  display: flex;
  flex-direction: column;
}

.atlas-settings-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--atlas-surface-b);
}

.atlas-settings-title-wrap {
  min-width: 0;
}

.atlas-settings-kicker {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--atlas-text-dim);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.atlas-settings-title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--atlas-text);
}

.atlas-settings-copy {
  margin: 6px 0 0;
  max-width: 640px;
  color: var(--atlas-text-soft);
  font-size: 13px;
  line-height: 1.55;
}

.atlas-settings-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--atlas-surface-b);
  border-radius: 10px;
  background: transparent;
  color: var(--atlas-text-dim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.atlas-settings-close:hover {
  background: var(--atlas-surface);
  color: var(--atlas-text);
  border-color: color-mix(in srgb, var(--atlas-accent) 20%, var(--atlas-surface-b));
}

.atlas-settings-layout {
  display: block;
  min-height: 0;
  flex: 1 1 auto;
  overflow-y: auto;
}

.atlas-settings-main {
  min-width: 0;
}

.atlas-settings-section {
  padding: 18px 20px 20px;
}

.atlas-settings-section + .atlas-settings-section {
  border-top: 1px solid var(--atlas-surface-b);
}

.atlas-settings-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.atlas-settings-section-title {
  color: var(--atlas-text);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.atlas-settings-section-copy {
  margin-top: 4px;
  color: var(--atlas-text-soft);
  font-size: 12.5px;
  line-height: 1.5;
}

.atlas-settings-section-tag {
  color: var(--atlas-text-dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.atlas-settings-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
}

.atlas-settings-form--triple {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.atlas-settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.atlas-settings-field--full {
  grid-column: 1 / -1;
}

.atlas-settings-label {
  color: var(--atlas-text-soft);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.atlas-settings-input {
  width: 100%;
  min-height: 40px;
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid var(--atlas-surface-b);
  background: color-mix(in srgb, var(--atlas-bg) 88%, var(--atlas-bg-warm) 12%);
  color: var(--atlas-text);
  font: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.atlas-settings-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--atlas-accent) 40%, var(--atlas-surface-b));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--atlas-accent) 10%, transparent);
  background: var(--atlas-bg);
}

.atlas-settings-textarea {
  min-height: 84px;
  resize: vertical;
}

.atlas-settings-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 14px;
}

.atlas-settings-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 124px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--atlas-accent) 20%, var(--atlas-surface-b));
  background: color-mix(in srgb, var(--atlas-accent) 8%, var(--atlas-bg));
  color: var(--atlas-accent-text);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.atlas-settings-btn:hover {
  background: color-mix(in srgb, var(--atlas-accent) 14%, var(--atlas-bg));
  border-color: color-mix(in srgb, var(--atlas-accent) 28%, var(--atlas-surface-b));
}

.atlas-settings-btn:disabled,
.atlas-settings-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.atlas-settings-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px 20px;
  border-top: 1px solid var(--atlas-surface-b);
}

.atlas-settings-btn--ghost {
  background: transparent;
  border-color: var(--atlas-surface-b);
  color: var(--atlas-text-soft);
}

.atlas-settings-btn--ghost:hover {
  background: var(--atlas-surface);
  color: var(--atlas-text);
  border-color: color-mix(in srgb, var(--atlas-text-soft) 18%, var(--atlas-surface-b));
}

.atlas-settings-btn--danger {
  gap: 8px;
  background: color-mix(in srgb, var(--atlas-sev-severe) 8%, var(--atlas-bg));
  border-color: color-mix(in srgb, var(--atlas-sev-severe) 18%, var(--atlas-surface-b));
  color: var(--atlas-sev-severe);
}

.atlas-settings-btn--danger:hover {
  background: color-mix(in srgb, var(--atlas-sev-severe) 14%, var(--atlas-bg));
  border-color: color-mix(in srgb, var(--atlas-sev-severe) 28%, var(--atlas-surface-b));
  color: var(--atlas-sev-severe);
}

@media (max-width: 980px) {
  .atlas-settings-form--triple {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .atlas-settings-card {
    width: min(100vw - 16px, 1180px);
    max-height: calc(100vh - 16px);
    margin: 8px auto;
    border-radius: 14px;
  }

  .atlas-settings-header,
  .atlas-settings-section,
  .atlas-settings-footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .atlas-settings-form,
  .atlas-settings-form--triple {
    grid-template-columns: 1fr;
  }

  .atlas-settings-section-head,
  .atlas-settings-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .atlas-settings-actions {
    justify-content: flex-start;
  }
}