/* MMPCreator - Folha de Estilos Principal */
:root {
  --bg-body: #2d3035;
  --bg-toolbar: #3b3f45;
  --bg-editor: #33373d;
  --border-color: #232529;
  --text-light: #c0c0c0;
  --text-dark: #888;
  --accent-green: #2ecc71;
  --accent-red: #d9534f;
  --background-light: #4a4f57;
  --background-lighter: #5c626b;
  --border-color-dark: #1a1c1e;
  --accent-blue: #3498db;
}

/* =============================================== */
/* LAYOUT E ESTRUTURA GLOBAL
/* =============================================== */
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-light);
  height: 100vh;
  overflow: hidden;
  display: flex;
}

body.knob-dragging { cursor: ns-resize; }
body.slice-tool-active .timeline-container { cursor: crosshair; }

.app-container {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  overflow: hidden;
  position: relative;
}

/* =============================================== */
/* BARRA LATERAL (SAMPLE BROWSER)
/* =============================================== */
.sample-browser {
  width: 300px;
  background-color: var(--bg-toolbar);
  border-right: 2px solid var(--border-color);
  z-index: 10;
  display: flex;
  flex-direction: column;
  transition: min-width 0.3s ease, width 0.3s ease;
  flex-shrink: 0;
}
body.sidebar-hidden .sample-browser {
  width: 0;
  min-width: 0;
  border-right: none;
  overflow: hidden;
}
.browser-header {
  padding: 15px;
  background-color: #2a2c30;
  border-bottom: 2px solid var(--border-color);
  text-align: center;
  font-weight: bold;
  white-space: nowrap;
}
.browser-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 10px;
}
.browser-content ul {
  padding-left: 15px;
  list-style: none;
}
.folder-item > .file-list {
  display: none;
  padding-left: 20px;
}
.folder-item.open > .file-list {
  display: block;
}
.folder-name {
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 5px;
  border-radius: 3px;
  user-select: none;
}
.folder-name:hover {
  background-color: var(--bg-editor);
}
.folder-icon {
  margin-right: 8px;
  color: var(--text-dark);
  transition: transform 0.2s ease-in-out;
}
.folder-name::before {
  content: '\f0da';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  margin-right: 8px;
  font-size: 0.9em;
  transition: transform 0.2s ease-in-out;
}
.folder-item.open > .folder-name::before {
  transform: rotate(90deg);
}
.folder-item.open > .folder-name > .folder-icon::before {
  content: '\f07c';
}
.browser-content li.file-item {
  padding: 5px;
  cursor: pointer;
  border-radius: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  user-select: none;
}
#sidebar-toggle {
  position: absolute;
  top: 60px;
  left: 5px;
  z-index: 1400;
  background-color: var(--bg-toolbar);
  border: 1px solid var(--border-color);
  color: var(--text-light);
  width: 25px;
  height: 40px;
  cursor: pointer;
  border-radius: 0 4px 4px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =============================================== */
/* ÁREA DE CONTEÚDO E TOOLBARS
/* =============================================== */
.global-toolbar { display: flex; align-items: center; gap: 20px; padding: 8px 15px; background-color: var(--bg-toolbar); border-bottom: 2px solid var(--border-color); height: 50px; box-sizing: border-box; flex-shrink: 0; }
.main-content { flex-grow: 1; padding: 1rem; display: flex; flex-direction: column; gap: 1rem; overflow: hidden; }
.beat-editor {
  flex: 1;
  background-color: var(--bg-editor);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, .3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.editor-header { background-color: var(--bg-toolbar); padding: 4px 10px; font-size: .8rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); flex-shrink: 0; }
.editor-toolbar { background-color: var(--bg-toolbar); padding: 5px 10px; border-bottom: 2px solid var(--border-color); flex-shrink: 0; display: flex; align-items: center; gap: 15px; }


/* =============================================== */
/* EDITOR DE BASES (BEAT EDITOR / STEP SEQUENCER)
/* =============================================== */
#track-container {
  overflow-y: auto;
  overflow-x: hidden;
  flex-grow: 1;
}
.track-lane {
  display: flex;
  align-items: stretch;
  background-color: var(--bg-editor);
  border-bottom: 1px solid var(--bg-toolbar);
  min-height: 72px;
  box-sizing: border-box;
}
.track-lane.active-track { background-color: #40454d; }
.track-lane.drag-over { border: 2px dashed var(--accent-green); }
.track-lane .track-info {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 180px;
  flex-shrink: 0;
  padding: 0 10px;
  border-right: 1px solid var(--bg-toolbar);
}
.track-mute { width: 25px; height: 12px; background-color: var(--accent-green); border-radius: 6px; cursor: pointer; border: 1px solid var(--border-color); box-shadow: inset 0 0 2px #000; transition: background-color 0.2s, opacity 0.2s; }
.track-mute:hover { opacity: 0.8; }
.track-mute.active { background-color: var(--text-dark); opacity: 0.7; }
.track-lane .track-controls { display: flex; gap: 5px; margin: 0 10px; padding-left: 10px; border-left: 1px solid var(--bg-toolbar); flex-shrink: 0; }
.step-sequencer-wrapper { flex-grow: 1; overflow-x: auto; overflow-y: hidden; padding-bottom: 8px; display: flex; align-items: center; }
.step-sequencer { display: flex; gap: 4px; }
.step-wrapper { position: relative; }
.step-marker { position: absolute; top: -16px; left: 1px; font-size: .6rem; color: var(--text-dark); user-select: none; }
.step { width: 28px; height: 28px; background-color: #2a2a2a; border: 1px solid #4a4a4a; border-radius: 2px; cursor: pointer; transition: background-color .1s, transform 0.1s; flex-shrink: 0; }
.step-dark { background-color: #1e1e1e; }
.step:hover { background-color: #555; border-color: #888; }
.step.active { background-color: var(--accent-green); border: 1px solid #fff; box-shadow: 0 0 8px var(--accent-green); }
.step.playing { transform: scale(1.1); box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.8); }

/* =================================================================== */
/* EDITOR DE ÁUDIO - LAYOUT PRINCIPAL
/* =================================================================== */
.audio-editor {
  flex: 1;
  background-color: var(--bg-editor);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, .3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  --track-info-width: 255px;
}
#audio-track-container {
  flex-grow: 1; /* Ocupa o espaço restante */
  overflow: auto; /* Habilita a rolagem horizontal e vertical */
}
.audio-track-lane {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  background-color: var(--bg-editor);
  border-bottom: 1px solid var(--bg-toolbar);
  min-height: 90px;
  box-sizing: border-box;
}
.audio-track-lane.drag-over { background-color: #40454d; }
.audio-track-lane .track-info {
  width: var(--track-info-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: #383c42;
  border-right: 2px solid var(--border-color);
}
.track-info-header { display: flex; align-items: center; gap: 8px; width: 100%; }
.track-name { color: var(--accent-red); font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.timeline-container {
  flex-grow: 1;
  position: relative;
  overflow-x: hidden; /* A rolagem agora é controlada pelo #audio-track-container */
  overflow-y: hidden;
}
.spectrogram-view-grid {
  height: 100%;
  position: relative;
  display: block;
  /* Estas variáveis são agora definidas dinamicamente por audio_ui.js */
  --step-width: 32px;
  --beat-width: 128px;
  --bar-width: 512px;
  background-size: var(--bar-width) 100%, var(--beat-width) 100%, var(--step-width) 100%;
  background-image:
    repeating-linear-gradient(to right, #666 0, #666 1px, transparent 1px, transparent 100%),
    repeating-linear-gradient(to right, #444 0, #444 1px, transparent 1px, transparent 100%),
    repeating-linear-gradient(to right, #3a3e44 0, #3a3e44 1px, transparent 1px, transparent 100%);
}

/* =============================================== */
/* EDITOR DE ÁUDIO - RÉGUA E LAYOUT CORRIGIDO
/* =============================================== */
.ruler-wrapper {
  display: flex;
  flex-shrink: 0;
  background-color: #383c42;
  border-bottom: 1px solid var(--border-color);
}
.ruler-spacer {
  width: var(--track-info-width);
  flex-shrink: 0;
  border-right: 2px solid var(--border-color);
}
.timeline-ruler {
  position: relative;
  height: 25px;
  flex-grow: 1;
  overflow: hidden;
  background-color: #2a2c30;
}
.ruler-marker {
  position: absolute;
  top: 0;
  height: 100%;
  color: var(--text-dark);
  font-size: 0.75rem;
  padding-left: 5px;
  border-left: 1px solid #555;
  user-select: none;
  display: flex;
  align-items: center;
  box-sizing: border-box;
}

/* =============================================== */
/* EDITOR DE ÁUDIO - CLIPS E CONTROLES
/* =============================================== */
.timeline-clip {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 55px;
  background: linear-gradient(to bottom, #5c626b, #4a4f57);
  border: 1px solid var(--border-color-dark);
  border-radius: 4px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  /* --- CORREÇÃO: Remove o padding horizontal --- */
  padding: 0;
  overflow: hidden;
  cursor: grab;
  user-select: none;
  color: var(--text-light);
}
.timeline-clip:active, .timeline-clip.dragging { cursor: grabbing; z-index: 1000; border-color: var(--accent-blue); opacity: 0.9; }
.clip-name { position: absolute; top: 4px; left: 8px; font-size: 0.75rem; font-weight: bold; background-color: rgba(0,0,0,0.6); padding: 2px 6px; border-radius: 3px; pointer-events: none; }
.waveform-canvas-clip { width: 100%; height: 100%; display: block; }
.audio-track-lane .track-controls { display: flex; justify-content: flex-start; gap: 15px; border-left: none; padding-left: 0; margin: 0; }
.clip-resize-handle { position: absolute; top: 0; bottom: 0; width: 8px; cursor: ew-resize; z-index: 10; }
.clip-resize-handle.left { left: 0; }
.clip-resize-handle.right { right: 0; }
.playhead { position: absolute; top: 0; left: 0; width: 2px; height: 100%; background-color: var(--accent-red); z-index: 50; pointer-events: none; }
#loop-region {
  display: none; /* Começa escondido por padrão */
  position: absolute;
  top: 0;
  height: 100%;
  background-color: rgba(52, 152, 219, 0.2);
  border-left: 1px solid var(--accent-blue);
  border-right: 1px solid var(--accent-blue);
  z-index: 15;
  min-width: 16px;
  cursor: grab;
}
#loop-region.visible {
  display: block; /* ou 'flex', 'absolute', etc. */
}

/* Esta regra está correta, mas também deve usar o ID */
#loop-region:active {
  cursor: grabbing;
}
.loop-handle { position: absolute; top: 0; bottom: 0; width: 10px; cursor: ew-resize; }
.loop-handle.left { left: -5px; }
.loop-handle.right { right: -5px; }

/* --- ESTILOS ADICIONADOS --- */
#slice-tool-btn.active,
#resize-tool-trim.active,
#resize-tool-stretch.active { 
  color: var(--accent-blue); 
  background-color: var(--bg-editor);
  border-radius: 3px;
}
#audio-editor-loop-btn.active { color: var(--accent-green); }

/* =============================================== */
/* COMPONENTES GERAIS (KNOBS, BOTÕES, INPUTS)
/* =============================================== */
.knob-container { text-align: center; font-size: .7rem; color: var(--text-dark); }
.knob-container { text-align: center; font-size: .7rem; color: var(--text-dark); }
.knob { width: 28px; height: 28px; background-color: var(--bg-toolbar); border-radius: 50%; border: 1px solid var(--border-color); margin-bottom: 2px; cursor: grab; box-shadow: inset 0 0 4px #222; position: relative; }
.knob:active { cursor: grabbing; }
.knob-indicator { width: 2px; height: 8px; background-color: var(--text-light); position: absolute; top: 2px; left: 50%; transform-origin: bottom center; transform: translateX(-50%) rotate(0deg); border-radius: 1px; }
.interactive-input-container { display: flex; align-items: center; justify-content: center; gap: 4px; }
.compasso-group { display: flex; align-items: center; gap: 4px; }
.value-input { background: 0 0; border: 0; outline: 0; color: var(--accent-green); font-weight: 700; font-size: 1.4rem; font-family: Courier New, Courier, monospace; text-align: center; padding: 0; width: 55px; }
.compasso-input { width: 25px; }
.compasso-separator { color: var(--accent-green); font-weight: 700; font-size: 1.4rem; font-family: Courier New, Courier, monospace; margin: 0 2px; }
.value-input::-webkit-outer-spin-button, .value-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.value-input[type=number] { -moz-appearance: textfield; }
.adjust-btn { background: 0 0; border: 0; color: var(--text-dark); font-size: 1rem; font-weight: 700; cursor: pointer; padding: 0 5px; transition: color .2s; line-height: 1; }
.adjust-btn:hover { color: #fff; }
.control-group { display: flex; align-items: center; gap: 15px; padding: 0 10px; }
.control-group i { font-size: 1.2rem; cursor: pointer; color: var(--text-light); transition: color .2s; }
.control-group i:hover { color: #fff; }
.fa-play, .fa-pause { color: var(--accent-green) !important; }
.divider { width: 1px; height: 25px; background-color: var(--border-color); }
.info-display-group { display: flex; align-items: center; gap: 5px; }
.info-display { background-color: #1a1c1e; padding: 5px 8px; border-radius: 3px; text-align: center; }
.info-display .label { color: var(--text-dark); font-size: .6rem; text-transform: uppercase; }
.spacer { flex-grow: 1; }
#metronome-btn { background: 0 0; border: 1px solid var(--text-dark); color: var(--accent-green); font-family: inherit; font-weight: 700; font-size: .8rem; padding: 5px 10px; border-radius: 3px; cursor: pointer; transition: all .2s; }
#metronome-btn:hover { border-color: var(--text-light); background-color: var(--bg-editor); }
#metronome-btn.active { background-color: var(--accent-green); color: var(--bg-body); border-color: var(--accent-green); }

/* =============================================== */
/* MODAL E MENUS
/* =============================================== */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.7); z-index: 2000; display: flex; justify-content: center; align-items: center; padding: 1rem; visibility: hidden; opacity: 0; transition: visibility 0s 0.3s, opacity 0.3s; }
.modal-overlay.visible { visibility: visible; opacity: 1; transition: visibility 0s, opacity 0.3s; }
.modal-content { background-color: var(--bg-body); padding: 1.5rem 2rem; border-radius: 6px; border: 1px solid var(--border-color); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); width: 100%; max-width: 500px; position: relative; display: flex; flex-direction: column; gap: 1.5rem; max-height: 90vh; }
.modal-close { position: absolute; top: 10px; right: 15px; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; border: none; background: none; }
.modal-close:hover { color: var(--text-light); }
.modal-title { margin: 0; padding-bottom: 0.5rem; border-bottom: 1px solid var(--bg-toolbar); color: var(--text-light); text-align: center; flex-shrink: 0; }
.modal-section h3 { margin-top: 0; margin-bottom: 0.8rem; font-size: 1rem; color: var(--text-light); }
#server-projects-list { max-height: 250px; overflow-y: auto; background-color: var(--bg-toolbar); border: 1px solid var(--border-color); border-radius: 4px; padding: 0.5rem; min-height: 50px; }
#server-projects-list .project-item { background-color: var(--bg-editor); padding: 10px 15px; border-radius: 4px; margin-bottom: 8px; cursor: pointer; transition: background-color 0.2s, color 0.2s; border: 1px solid transparent; }
#server-projects-list .project-item:last-child { margin-bottom: 0; }
#server-projects-list .project-item:hover { background-color: var(--bg-body); color: #fff; border-color: var(--accent-green); }
.modal-button { background-color: var(--bg-toolbar); color: var(--text-light); border: 1px solid var(--border-color); padding: 0.8rem 1.5rem; border-radius: 4px; cursor: pointer; font-size: 1rem; transition: background-color 0.2s, border-color 0.2s; width: 100%; text-align: center; }
.modal-button:hover { background-color: #4a4f57; border-color: #333; }
#timeline-context-menu { position: fixed; display: none; background-color: var(--bg-toolbar); border: 1px solid var(--border-color-dark); border-radius: 4px; box-shadow: 0 4px 12px rgba(0,0,0,0.5); padding: 5px 0; z-index: 2000; font-size: 0.9rem; }
#timeline-context-menu div { padding: 8px 15px; cursor: pointer; white-space: nowrap; }
#timeline-context-menu div:hover { background-color: var(--accent-blue); color: white; }

/* =============================================== */
/* ESTILOS RESPONSIVOS
/* =============================================== */
@media (max-width: 1200px) {
  .info-display-group { gap: 2px; }
  .info-display { padding: 4px 6px; }
  .value-input { font-size: 1.2rem; width: 45px; }
  .compasso-input { width: 20px; }
}
@media (max-width: 992px) {
  .global-toolbar { gap: 10px; flex-wrap: wrap; height: auto; padding-bottom: 10px; }
  .main-content { padding-top: 100px; }
  .info-display-group { order: 3; width: 100%; justify-content: space-around; }
  .spacer { display: none; }
}
@media (max-width: 768px) {
  .sample-browser { transform: translateX(-100%); position: fixed; width: 280px; }
  body:not(.sidebar-hidden) .sample-browser { transform: translateX(0); }
  #sidebar-toggle { left: 5px; transform: translateX(0); position: fixed; }
  .global-toolbar { padding-left: 45px; }
  .main-content { padding: 10px; }
  .track-lane, .audio-track-lane { flex-direction: column; align-items: stretch; gap: 15px; padding: 15px; }
  .track-lane .track-info, .audio-track-lane .track-info, .track-lane .track-controls, .audio-track-lane .track-controls { width: 100%; border: none; padding: 0; }
  .track-lane .track-controls, .audio-track-lane .track-controls { justify-content: space-around; }
}

/* =============================================== */
/* SCROLLBARS
/* =============================================== */
::-webkit-scrollbar { height: 10px; width: 10px; }
::-webkit-scrollbar-track { background: var(--border-color); }
::-webkit-scrollbar-thumb { background: var(--bg-toolbar); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #555; }