/* Settings Panel Styles for Brightlens News */

:root {
  --settings-panel-width: 360px;
  --settings-backdrop: rgba(0, 0, 0, 0.5);
}

/* Settings icon button (matches .theme-toggle) */
.settings-toggle {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-muted);
}
.settings-toggle:hover {
  background: var(--surface-color);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

/* Backdrop */
.settings-backdrop {
  position: fixed;
  inset: 0;
  background: var(--settings-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 1000;
}
.settings-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* Slide-in panel */
.settings-panel {
  position: fixed;
  top: 0;
  right: -400px;
  width: min(100%, var(--settings-panel-width));
  height: 100vh;
  background: var(--background-color);
  border-left: 1px solid var(--border-color);
  box-shadow: -10px 0 30px rgba(0,0,0,0.1);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  transition: right 0.3s ease;
}
.settings-panel.open {
  right: 0;
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem;
  border-bottom: 1px solid var(--border-color);
}
.settings-header h3 {
  margin: 0;
  font-size: 1.125rem;
}
.settings-close {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  cursor: pointer;
}

.settings-body {
  overflow-y: auto;
  padding: 1rem;
  display: grid;
  gap: 1rem;
}

.settings-section {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}
.settings-section h4 {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
}

.theme-grid-inline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
}
.theme-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  background: #fff;
}
.theme-chip .swatch { width: 18px; height: 18px; border-radius: 0.35rem; border: 1px solid var(--border-color); }
.theme-chip.active { outline: 2px solid var(--primary-color); }

/* Font size options */
.font-size-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
.font-size-btn {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  background: #fff;
  cursor: pointer;
}
.font-size-btn.active { border-color: var(--primary-color); color: var(--primary-color); background: rgba(37,99,235,0.08); }

/* Toggles */
.toggle { display: inline-flex; align-items: center; gap: 0.5rem; }
.toggle input { width: 42px; height: 24px; appearance: none; background: #e2e8f0; border-radius: 999px; position: relative; outline: none; cursor: pointer; transition: background 0.2s; }
.toggle input::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; background: #fff; border-radius: 50%; transition: transform 0.2s; box-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.toggle input:checked { background: var(--primary-color); }
.toggle input:checked::after { transform: translateX(18px); }

/* Footer actions */
.settings-footer { padding: 0.75rem 1rem; border-top: 1px solid var(--border-color); display: flex; gap: 0.5rem; justify-content: space-between; align-items: center; }
.settings-footer .cta { background: var(--primary-color); color: #fff; border: none; border-radius: 0.5rem; padding: 0.6rem 0.9rem; cursor: pointer; }

/* Font size application */
body.fs-small { font-size: 14px; }
body.fs-medium { font-size: 16px; }
body.fs-large { font-size: 18px; }

/* Mobile adjustments */
@media (max-width: 480px) {
  :root { --settings-panel-width: 100%; }
  .theme-grid-inline { grid-template-columns: repeat(3, 1fr); }
}