/* ==========================================================================
   Wallmonitor Settings Stylesheet (Minimal, Functional, Dark Aesthetic)
   ========================================================================== */

:root {
  --bg-color: #090b10;
  --card-bg: #131722;
  --card-border: #1f2638;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --success: #10b981;
  --danger: #ef4444;
  --radius: 12px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  padding: 1.5rem;
}

.settings-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Header */
.settings-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--card-border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  transition: all 0.15s ease;
}

.back-link:hover {
  background: rgba(56, 189, 248, 0.2);
}

.settings-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Theme & Color Options */
.theme-card .section-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.theme-badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  border: 1px solid var(--accent);
  font-family: var(--font-mono);
}

.theme-presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.65rem;
}

.theme-preset-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.55rem 0.75rem;
  cursor: pointer;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.theme-preset-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
}

.theme-preset-btn.active {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
}

.color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.custom-color-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: 8px;
}

.custom-color-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
}

.color-label-text {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.color-picker-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  background: transparent;
  padding: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
}

.hex-code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
}

.theme-preview-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  background: var(--accent);
  color: #090b10;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.35);
  transition: all 0.15s ease;
}

.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  transition: all 0.15s ease;
}

.intro-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.current-status-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

.status-metric {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.status-metric .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  font-weight: 600;
}

.status-metric .val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.status-metric .val.accent {
  color: var(--accent);
}

/* 24h Canvas Graph */
.graph-card h2 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.canvas-wrap {
  width: 100%;
  overflow-x: auto;
  background: #0b0e14;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.5rem;
}

#curve-canvas {
  width: 100%;
  height: auto;
  display: block;
}

/* Points List */
.card-head-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-head-bar h2 {
  font-size: 1.05rem;
  font-weight: 600;
}

.points-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.point-row {
  display: grid;
  grid-template-columns: 110px 1fr 90px 40px;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  transition: border-color 0.15s ease;
}

.point-row:hover {
  border-color: rgba(56, 189, 248, 0.3);
}

/* Form Controls */
input[type="time"] {
  background: #090b10;
  border: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  outline: none;
}

input[type="time"]:focus {
  border-color: var(--accent);
}

.slider-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

.brightness-display {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  min-width: 44px;
  text-align: right;
  color: var(--accent);
}

.dim-info {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: right;
}

.del-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.del-btn:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* Action Buttons */
.editor-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--card-border);
  margin-top: 0.5rem;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #090b10;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--card-border);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent);
}

.btn-outline {
  background: transparent;
  border-color: var(--card-border);
  color: var(--text-muted);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

/* Toast Banner */
.toast-banner {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #10b981;
  color: #052e16;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 1000;
}

.toast-banner.error {
  background: #ef4444;
  color: #450a0a;
}

.toast-banner.hidden {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}

@media (max-width: 640px) {
  .point-row {
    grid-template-columns: 1fr auto;
    row-gap: 0.5rem;
  }
  .slider-group {
    grid-column: 1 / -1;
  }
  .editor-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }
}