/* =========================================================
   VARIABLES & RESET
========================================================= */

@font-face {
  font-family: "JetBrains Mono";
  src: url("./fonts/JetBrainsMono-Regular.woff2") format("woff2");
}

@font-face {
  font-family: "Consolas";
  src: url("./fonts/Consolas.woff2") format("woff2");
}

@font-face {
  font-family: "Fira Code";
  src: url("./fonts/FiraCode-Regular.woff2") format("woff2");
}


:root {
  --bg-dark: #0e0f13;
  --bg-panel: #141622;
  --border-color: #2a2d3a;
  --text-primary: #e6e6eb;
  --text-muted: #9aa0b4;
  --accent: #00ffc6;
}

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

/* =========================================================
   BODY & GENERAL
========================================================= */

body {
  background: radial-gradient(circle at top, #141622, #0b0c10);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

/* =========================================================
   HEADER
========================================================= */

.header {
  margin-bottom: 40px;
}

.header h1 {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 8px;
}

.header p {
  color: var(--text-muted);
  font-size: 16px;
}

/* =========================================================
   CONTROLS
========================================================= */

.controls {
  display: flex;
  gap: 48px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

select,
input[type='range'] {
  padding: 8px 12px;
  background: var(--bg-panel);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
}

select {
  min-width: 180px;
}

input[type='range'] {
  padding: 0;
  min-width: 200px;
  cursor: pointer;
}

/* =========================================================
   GRIDS SECTION
========================================================= */

.grids {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  justify-content: left;
  flex-wrap: wrap;
}

.grid-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.grid-panel h2 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

/* =========================================================
   GRID STYLES
========================================================= */

.grid {
  display: grid;
  gap: 0;
  width: fit-content;
}

.cell {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

.reference-cell {
  background: transparent;
}

.text-cell {
  font-size: 32px;
  font-weight: normal;
  color: var(--accent);
  border-color: rgba(0, 255, 198, 0.2);
}

/* =========================================================
   OUTPUT SECTION
========================================================= */

.output-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.result-box {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px 20px;
  flex: 1;
  max-width: 400px;
}

.result-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.result-value {
  font-family: 'Courier New', monospace;
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
}

/* =========================================================
   BUTTON
========================================================= */

.copy-btn {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 12px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.copy-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.copy-btn:active {
  opacity: 0.8;
  transform: translateY(0);
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 768px) {
  .grids {
    grid-template-columns: 1fr;
  }

  .controls {
    flex-direction: column;
    gap: 24px;
  }

  .output-section {
    flex-direction: column;
    align-items: stretch;
  }

  .result-box {
    max-width: none;
  }

  .copy-btn {
    width: 100%;
  }
}