/* ------------------------------
   Retro 8-Bit Theme (Enhanced Layout/Styling)
------------------------------ */

/* Pixel font */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
  --grid-gap: 4px;
  --cell-size: 2rem;
  --label-width: 6rem;
  --control-bg: #222;
  --cell-bg: #222;
  --cell-border: #555;
  --cell-border-active: #0f0;
  --accent-color: #0f0;
  --bg-color: #080808;
  --fg-color: #0f0;
  --font-family: 'Press Start 2P', monospace;
}

body {
  background: var(--bg-color);
  color: var(--fg-color);
  font-family: var(--font-family);
}

.add-margin-top {
  margin-top: 1rem;
}

#sequencer-container {
  border: 3px solid var(--accent-color);
  background: #111;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  width: 100%;
  max-width: 1200px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;      /* center grid */
}

h1, .title {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  text-shadow: 0 0 4px var(--accent-color);
}

#controls {
  background: var(--control-bg);
  border: 3px solid var(--accent-color);
}

/* Keep your pixelated buttons/inputs/selects */
#controls button,
#controls input,
#controls select {
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  color: var(--fg-color);
  cursor: pointer;
  border-radius: 4px;
}

/* Bigger uniform control buttons */
#controls button {
  width: 3.5rem;
  height: 3.5rem;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  border-radius: 4px;
  box-sizing: border-box;
  font-size: 1.5rem;    /* increase icon size proportionally */
  color: var(--fg-color);
  cursor: pointer;
}

#controls button:hover {
  border-color: var(--accent-color);
}

/* Medium screens: fill more width and shrink controls a bit */
@media (max-width: 600px) {
  #controls {
    width: 90%;
  }
  #controls button,
  #controls input,
  #controls select {
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
  }
}

/* Small screens: tighter grid cells */
@media (max-width: 400px) {
  #controls {
    grid-template-columns: repeat(auto-fit, minmax(3rem, 1fr));
  }
  #controls button,
  #controls input,
  #controls select {
    padding: 0.2rem 0.4rem;
    font-size: 0.6rem;
  }
}

.remove-row-btn {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  color: var(--fg-color);
  cursor: pointer;
  border-radius: 4px;

  display: flex;              /* centers the X */
  align-items: center;
  justify-content: center;

  padding: 0.25rem;           /* gives some internal space */
  font-size: 1.1rem;          /* scale X appropriately */
  line-height: 1;
}

.add-row {
  font-size: 20px;
  font-weight: bold;
}

#grid {
  display: flex;
  flex-direction: column;
  gap: var(--grid-gap);
  overflow-x: auto;
  box-sizing: border-box;
  width: 100%;
}

.grid-row {
  display: flex;
  grid-template-columns:
    var(--label-width)   /* instrument select */
    3rem                 /* mute button */
    2rem                 /* remove button */
    4rem                 /* volume slider */
    repeat(16, var(--cell-size)); /* notes */
  gap: var(--grid-gap);
  align-items: center;
  width: max-content; /* prevent wrapping */
}

.notes-wrapper {
  /* flex: 1 if you want it to take remaining space */
  flex: 1;
  overflow-x: auto;
}

.row-controls {
  position: sticky;
  left: 0;
  background: var(--control-bg);
  z-index: 10;
  border-right: 3px solid var(--cell-border);
}

.notes-wrapper .cell {
  flex-shrink: 0;
}

/* optional: give .notes-wrapper its own scrollbar style */
.notes-wrapper::-webkit-scrollbar {
  height: 6px;
}


.instrument-select {
  width: auto;
  min-width: 8rem;
  padding-right: 2rem; /* give space for dropdown arrow */
  padding: 0.25rem;
  font-size: 0.7rem;
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  color: var(--fg-color);
  border-radius: 4px;
}

.mute-cell {
  display: flex;
  justify-content: center;
  align-items: center;
  width: auto;
}

.mute-btn {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  border-radius: 4px;
  cursor: pointer;
  padding: 15px; /* Ensures exact size */
}

.mute-btn::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f028"; /* fa-volume */
  font-size: 1rem;
  color: var(--fg-color);
  display: inline-block;
  width: 1em;        /* Ensures glyph takes consistent space */
  text-align: center;
}

.mute-btn.muted::before {
  content: "\f6a9"; /* fa-volume-slash */
}

.volume-slider {
  width: 3.5rem; /* Adjusted fixed width */
  box-sizing: border-box;
}

.cell {
  width: 2rem;
  height: 2rem;
  background: var(--cell-bg);
  border: 3px solid var(--cell-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  border-radius: 4px;
  box-sizing: border-box;
}

.cell.active {
  background: var(--accent-color);
  border-color: var(--cell-border-active);
  color: #111;
}

.cell.current-step {
  background-color: rgba(255,255,255,0.2);
}

/* Scrollbar styling */
#grid::-webkit-scrollbar {
  height: 8px;
}
#grid::-webkit-scrollbar-track {
  background: var(--bg-color);
}
#grid::-webkit-scrollbar-thumb {
  background: #444;
  border-radius: 4px;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  :root {
    --label-width: 5rem;
    --cell-size: 1.5rem;
  }
  .instrument-select, .mute-btn, .volume-slider {
    font-size: 0.6rem;
  }
}

/* Generate-Prompt UI */
#generate-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
  background: var(--control-bg);
  border: 3px solid var(--accent-color);
  padding: 0.5rem;
  border-radius: 6px;
  width: 100%;
  box-sizing: border-box;
}

#generate-inputs {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  width: 100%;
}

#generate-status {
  font-size: 0.8rem;
}

#generate-prompt, #generate-btn {
  background: var(--control-bg);
  border: 3px solid var(--cell-border);
  color: var(--fg-color);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.5rem;
  border-radius: 4px;
  box-sizing: border-box;
}

#generate-prompt {
  flex: 1;
  resize: vertical;
}

#generate-btn {
  cursor: pointer;
}


.hidden { display: none; }

.progress-bar {
  width: 100%;
  height: 0.5rem;
  background: #333;
  border-radius: 0.25rem;
  overflow: hidden;
  margin-top: 0.5rem;
}

.progress-fill {
  width: 30%;
  height: 100%;
  background: var(--accent-color);
  animation: indeterminate 1.2s infinite ease-in-out;
}

@keyframes indeterminate {
  0%   { transform: translateX(-30%); }
  100% { transform: translateX(100%); }
}

.mute-btn.muted {
  background-color: crimson;
  color: #111;
}

.cell.current-step {
  background-color: rgba(255,255,255,0.2);
  /* or whatever highlight color works for you */
}

/* Generate-Prompt UI coloring, but layout handled by Tailwind */
#generate-controls,
#generate-prompt,
#generate-btn {
  background: var(--cell-bg);
  border: 3px solid var(--cell-border);
  color: var(--fg-color);
  font-family: var(--font-family);
}

#loop-btn.active {
  border-color: var(--accent-color); /* your green */
  /* optionally also tint the icon: */
}
#loop-btn.active i {
  color: var(--accent-color);
}

.modal {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  z-index: 10;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.5);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: #2e2e2e;
  padding: 1.5em;
  border-radius: 10px;
  max-width: 400px;
  box-shadow: 0 0 10px #000;
  font-size: 10px;
  letter-spacing: 1px;
}

#help-modal li {
  letter-spacing: 3px;
}

#help-modal ul {
  list-style: none;
  padding-left: 0;
}

#help-modal li::before {
  content: '♪';
  color: #0f0;
  font-weight: bold;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

.close {
  float: right;
  font-size: 1.2em;
  cursor: pointer;
}

#donate-container {
  width: 65%;
  margin-left: auto;
  margin-right: auto;
  border: 11px solid #0F0;
  padding: 20px;
}

#donate-container span {
  font-size: 11px;
}

#donate-button-container,
#donate-button-container img {
  margin-left: auto;
  margin-right: auto;
  margin-top: 1rem;
  text-align: center;
}

.copyright-text {
  margin-right: auto;
  margin-left: auto;
  margin-top: 20px;
  width: 100%;
  font-size: 13px;
}