@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@500;700&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  --bg-main: #0a0c10;
  --bg-card: #12151e;
  --bg-inner: #0d0e14;
  --border-color: #2a2f42;
  --border-active: #3b82f6;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-red: #ef4444;
  --accent-blue: #3b82f6;

  --font-title: 'Space Grotesk', sans-serif;
  --font-code: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0px !important;
  user-select: none;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-title);
  padding: 16px;
  max-width: 900px;
  margin: 0 auto;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.app-title { font-size: 1.3rem; font-weight: 700; letter-spacing: 1px; }
.app-title span { color: var(--accent-blue); }
.app-subtitle { font-size: 0.65rem; font-family: var(--font-code); color: var(--text-muted); }
.header-actions { display: flex; gap: 8px; }

/* Banner Preview */
.preview-banner {
  height: 75px;
  border: 2px solid var(--border-color);
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.preview-sub { font-size: 11px; font-weight: normal; opacity: 0.8; margin-top: 2px; }

/* Navigation Tabs */
.tabs-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}
.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  padding: 8px 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}
.tab-btn.active {
  color: #fff;
  border-color: var(--border-active);
  background: #1e293b;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

/* Panel Animations */
.panel {
  display: none;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.panel.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Canvas Lock Scroll Fix */
.sat-val-container {
  position: relative;
  width: 100%;
  height: 200px;
  border: 2px solid var(--border-color);
  cursor: crosshair;
  margin-bottom: 16px;
  touch-action: none;
}
#satValCanvas { width: 100%; height: 100%; display: block; touch-action: none; }

.picker-cursor {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid #ffffff;
  outline: 2px solid #000000;
  transform: translate(-8px, -8px);
  pointer-events: none;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

/* Sliders */
.slider-group { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.slider-row { margin-bottom: 12px; }
.slider-label { display: flex; justify-content: space-between; font-size: 11px; font-family: var(--font-code); color: var(--text-muted); margin-bottom: 4px; }

.custom-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 16px;
  background: var(--bg-inner);
  border: 1px solid var(--border-color);
  outline: none;
}
.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 22px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  cursor: pointer;
}
.hue-slider { background: linear-gradient(to right, #f00, #ff0, #0f0, #0ff, #00f, #f0f, #f00); }

/* Hex Input */
.hex-direct-box { background: var(--bg-card); border: 1px solid var(--border-color); padding: 12px; }
.geo-code-input {
  width: 100%;
  background: var(--bg-inner);
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 8px;
  font-family: var(--font-code);
  font-size: 16px;
  text-align: center;
  margin-top: 6px;
}

/* Palette Generator */
.gen-controls { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.generated-palette { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; height: 100px; }
.gen-color-card {
  height: 100%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 6px;
  font-family: var(--font-code);
  font-size: 10px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.gen-color-card:hover { transform: scale(1.03); }

/* Gradient Mode */
.gradient-preview { height: 120px; border: 2px solid var(--border-color); }
.gradient-color-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.gradient-color-inputs input[type="color"] { width: 100%; height: 40px; border: 1px solid var(--border-color); background: var(--bg-card); cursor: pointer; }

/* WCAG Contrast Pro */
.contrast-pro-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.contrast-pro-inputs input[type="color"] { width: 100%; height: 40px; border: 1px solid var(--border-color); background: var(--bg-card); cursor: pointer; }
.wcag-pro-card { padding: 16px; border: 1px solid var(--border-color); margin-bottom: 12px; overflow-wrap: break-word; }
.wcag-pro-sample-large { font-size: 20px; font-weight: bold; margin-bottom: 6px; }
.wcag-pro-sample-small { font-size: 13px; line-height: 1.4; }
.wcag-pro-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; text-align: center; }
.metric-box { background: var(--bg-card); border: 1px solid var(--border-color); padding: 8px; }
.metric-val { font-family: var(--font-code); font-size: 16px; font-weight: bold; margin-top: 4px; }

/* Text & Schemes */
.section-title { font-size: 11px; font-family: var(--font-code); color: var(--text-muted); margin: 16px 0 8px 0; }
.text-rec-list { display: flex; flex-direction: column; gap: 8px; }
.text-rec-card { padding: 12px; border: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.text-rec-info .title { font-weight: bold; font-size: 13px; }
.text-rec-info .sub { font-size: 10px; opacity: 0.8; margin-top: 2px; }
.text-rec-tag { font-family: var(--font-code); font-size: 11px; padding: 4px 8px; background: rgba(0,0,0,0.4); font-weight: bold; }

.scheme-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.scheme-card { height: 50px; border: 1px solid var(--border-color); display: flex; flex-direction: column; justify-content: space-between; padding: 6px 8px; font-family: var(--font-code); font-size: 11px; cursor: pointer; }

/* Code Export */
.code-row { display: flex; justify-content: space-between; align-items: center; background: var(--bg-card); padding: 10px; border: 1px solid var(--border-color); margin-bottom: 8px; }
.code-label { font-size: 11px; color: var(--text-muted); }
.code-val { font-family: var(--font-code); font-size: 12px; color: #4ade80; word-break: break-all; }

/* Image Picker Canvas Lock Fix */
.file-input-btn { display: block; width: 100%; padding: 12px; background: var(--bg-card); text-align: center; border: 1px dashed var(--accent-blue); color: var(--accent-blue); font-weight: bold; cursor: pointer; }
#canvas-container { margin-top: 12px; text-align: center; display: none; touch-action: none; }
#img-canvas { max-width: 100%; border: 1px solid var(--border-color); cursor: crosshair; touch-action: none; }

/* Saved Palette */
.palette-section { margin-top: 24px; border-top: 2px solid var(--border-color); padding-top: 16px; }
.geo-header { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.palette-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(50px, 1fr)); gap: 8px; }
.geo-swatch-item { height: 50px; border: 1px solid var(--border-color); cursor: pointer; position: relative; transition: transform 0.1s ease; }
.geo-swatch-item:hover { transform: scale(1.05); }
.swatch-delete { position: absolute; top: 0; right: 0; background: rgba(0,0,0,0.8); color: var(--accent-red); width: 16px; height: 16px; font-size: 10px; display: none; align-items: center; justify-content: center; }
.geo-swatch-item:hover .swatch-delete { display: flex; }

/* Buttons & Utils */
.geo-btn { padding: 8px 14px; font-family: var(--font-title); font-size: 11px; font-weight: bold; border: none; cursor: pointer; transition: background 0.15s ease, transform 0.05s ease; }
.geo-btn:active { transform: scale(0.96); }
.geo-btn-primary { background: var(--accent-blue); color: #fff; }
.geo-btn-secondary { background: var(--bg-card); color: var(--text-secondary); border: 1px solid var(--border-color); }
.geo-label { font-size: 10px; color: var(--text-muted); font-family: var(--font-code); display: block; }

.wcag-badge { font-size: 10px; font-family: var(--font-code); padding: 4px; border: 1px solid var(--border-color); display: inline-block; }
.badge-pass { background: #065f46; color: #a7f3d0; }
.badge-fail { background: #7f1d1d; color: #fecaca; }

.toast {
  position: fixed; bottom: 20px; right: 20px; background: #fff; color: #000; font-family: var(--font-code); font-size: 12px; font-weight: bold; padding: 10px 16px; border: 2px solid #000; box-shadow: 3px 3px 0px var(--accent-blue); transform: translateY(100px); opacity: 0; transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275); z-index: 99;
}
.toast.show { transform: translateY(0); opacity: 1; }