/* =============================================== */
/* VÁRIAVEIS GLOBAIS (ROOT)
/* =============================================== */
: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;
}

/* =============================================== */
/* ESTILOS GLOBAIS E LAYOUT PRINCIPAL (CORRIGIDO)
/* =============================================== */
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  background-color: var(--bg-body);
  color: var(--text-light);
  /* Retornamos ao layout com padding para compatibilidade */
  padding-left: 300px;
  padding-top: 50px; /* Adiciona espaço para a toolbar fixa */
  box-sizing: border-box;
  transition: padding-left .3s ease;
  height: 100vh;
  display: flex; /* Usamos flex no body para o main-content crescer */
  flex-direction: column;
}

body.sidebar-hidden {
  padding-left: 0;
}

body.knob-dragging {
  cursor: ns-resize;
}

.main-content {
  padding: 1rem;
  flex-grow: 1; /* Faz o conteúdo principal ocupar o espaço restante */
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden; /* Evita que o conteúdo transborde */
  height: 100%; /* Garante que o flexbox interno funcione */
}

/* =============================================== */
/* BARRA LATERAL (SAMPLE BROWSER)
/* =============================================== */
.sample-browser {
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  height: 100vh;
  background-color: var(--bg-toolbar);
  border-right: 2px solid var(--border-color);
  z-index: 1500;
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform .3s ease;
}

body.sidebar-hidden .sample-browser {
  transform: translateX(-100%);
}

.browser-header {
  padding: 15px;
  background-color: #2a2c30;
  border-bottom: 2px solid var(--border-color);
  text-align: center;
  font-weight: bold;
  color: var(--text-light);
}

.browser-content {
  flex-grow: 1;
  overflow-y: auto;
  padding: 10px;
}

.browser-content ul { list-style: none; padding-left: 15px; }
.browser-content li { padding: 5px; cursor: pointer; border-radius: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; user-select: none; }
.browser-content li:hover { background-color: var(--bg-editor); }
.browser-content li i { margin-right: 8px; width: 12px; color: var(--text-dark); transition: transform .2s; }
.browser-content li.directory > ul { display: none; }
.browser-content li.directory.open > ul { display: block; }
.browser-content li.directory.open > .fa-folder { transform: rotate(90deg); }

#sidebar-toggle {
  position: fixed;
  top: 60px;
  left: 305px;
  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-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
  transition: left .3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.sidebar-hidden #sidebar-toggle {
  left: 5px;
}

/* =============================================== */
/* BARRA DE FERRAMENTAS GLOBAL
/* =============================================== */
.global-toolbar {
  padding: 8px 15px;
  position: fixed;
  top: 0;
  left: 300px;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: var(--bg-toolbar);
  border-bottom: 2px solid var(--border-color);
  transition: left .3s ease;
  height: 50px; /* Altura fixa para o cálculo do padding do body */
  box-sizing: border-box;
}

body.sidebar-hidden .global-toolbar {
  left: 0;
}

/* =============================================== */
/* NOVO: EDITOR DE AMOSTRAS DE ÁUDIO (AUDIO EDITOR)
/* =============================================== */

/* O container principal que substitui o .future-panel */
.audio-editor {
  height: 50%;
  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;
}

/* Container para as faixas de áudio, com scroll vertical */
#audio-track-container {
  overflow-y: auto;
  flex-grow: 1;
}

/* Estilo para cada linha de faixa de áudio */
.audio-track-lane {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  background-color: var(--bg-editor);
  border-bottom: 1px solid var(--bg-toolbar);
  min-height: 40px; /* Altura mínima para cada faixa */
  box-sizing: border-box;
}


/* =============================================== */
/* ESTILOS DO EDITOR DE ÁUDIO (MARCADORES)
/* =============================================== */

/* Wrapper para a visualização do espectrograma, permite scroll horizontal */
.spectrogram-view-wrapper {
  flex-grow: 1;
  overflow-x: auto;
  overflow-y: hidden;
  background-color: #2a2c30;
  border-radius: 3px;
}

/* Garante que o grid possa conter elementos posicionados de forma absoluta */
.spectrogram-view-grid {
  position: relative;
  display: inline-block; /* Faz o contêiner se ajustar à largura do canvas */
  height: 100%;
}

/* Estilo para os números de compasso */
.bar-marker {
  position: absolute;
  top: 0;
  transform: translateX(-50%); /* Centraliza o número sobre a linha */
  background-color: rgba(0, 0, 0, 0.5);
  color: var(--text-dark);
  padding: 1px 5px;
  font-size: 0.7rem;
  border-radius: 3px;
  user-select: none; /* Impede que o texto seja selecionado */
  z-index: 5; /* Garante que fique acima da forma de onda mas abaixo da agulha */
}

/* Mantém o canvas como block para evitar espaçamentos */
.waveform-canvas {
  display: block;
}

/* =============================================== */
/* TOOLBAR DO EDITOR
/* =============================================== */
.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;
}

.window-controls i { margin-left: 12px; cursor: pointer; }

.editor-toolbar, .editor-header .playback-controls {
  display: flex;
  align-items: center;
  gap: 15px;
}

.editor-toolbar {
  background-color: var(--bg-toolbar);
  padding: 5px 10px;
  border-bottom: 2px solid var(--border-color);
  flex-shrink: 0;
}

.editor-toolbar i, .editor-header .playback-controls i {
    cursor: pointer;
    padding: 5px;
    border-radius: 3px;
    font-size: 1rem;
}

.editor-toolbar i.enabled { background-color: var(--bg-body); box-shadow: inset 0 0 2px #000; }

.pattern-manager { display: flex; align-items: center; gap: 10px; }
.pattern-selector { background-color: var(--bg-body); color: var(--text-light); padding: 5px 10px; border: 1px solid var(--border-color); font-size: .9rem; border-radius: 2px; }
.pattern-btn { background: var(--bg-body); border: 1px solid var(--border-color); color: var(--text-light); cursor: pointer; border-radius: 3px; width: 28px; height: 28px; font-size: 1.2rem; }

/* =============================================== */
/* FAIXAS (TRACK LANES) E SEQUENCIADOR
/* =============================================== */
#track-container {
  overflow-y: auto;
  flex-grow: 1;
}

.track-lane {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  background-color: var(--bg-editor);
  border-bottom: 1px solid var(--bg-toolbar);
  border-left: 2px solid transparent;
  border-right: 2px solid transparent;
  transition: border-color 0.2s, background-color 0.2s;
}

.track-lane.active-track {
  background-color: #40454d;
}

.track-lane.drag-over {
  border-color: var(--accent-green);
}

/* Localize a regra .track-mute e substitua por esta */
.track-solo-btn {
  width: 25px;
  height: 12px;
  background-color: var(--accent-red); /* Cor padrão: vermelho */
  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-solo-btn:hover {
  opacity: 0.8;
}

/* Quando solado (ativo), o botão fica verde */
.track-solo-btn.active {
  background-color: var(--accent-green);
  opacity: 1;
}

.track-info { display: flex; align-items: center; gap: 8px; width: 180px; flex-shrink: 0; }
.track-info .fa-gear { font-size: 1.2rem; cursor: pointer; }
.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-name { color: var(--accent-red); font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-controls { display: flex; gap: 5px; margin: 0 10px; padding-left: 10px; border-left: 1px solid var(--bg-toolbar); flex-shrink: 0; }
.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; }

.step-sequencer-wrapper { flex-grow: 1; overflow-x: auto; overflow-y: hidden; padding-bottom: 8px; }
.step-sequencer { display: flex; gap: 4px; }
.step-sequencer-wrapper::-webkit-scrollbar { height: 8px; }
.step-sequencer-wrapper::-webkit-scrollbar-track { background: var(--border-color); border-radius: 4px; }
.step-sequencer-wrapper::-webkit-scrollbar-thumb { background: var(--bg-toolbar); border-radius: 4px; }
.step-sequencer-wrapper::-webkit-scrollbar-thumb:hover { background: #555; }
.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); }

/* =============================================== */
/* CONTROLES E INPUTS
/* =============================================== */
.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-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 { margin: 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; }

.file-menu-container { position: relative; }
.toolbar-btn { background-color: var(--background-light); color: var(--text-light); border: 1px solid var(--border-color); border-radius: 3px; padding: 5px 10px; cursor: pointer; font-family: inherit; font-size: 0.8rem; }
.toolbar-btn:hover { background-color: var(--background-lighter); }
.file-menu-dropdown { position: absolute; top: 100%; left: 0; background-color: var(--background-lighter); border: 1px solid var(--border-color-dark); border-radius: 4px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); min-width: 200px; z-index: 1000; overflow: hidden; display: flex; flex-direction: column; }
.file-menu-dropdown.hidden { display: none; }
.file-menu-dropdown a { color: var(--text-light); padding: 8px 12px; text-decoration: none; display: block; font-size: 0.9rem; }
.file-menu-dropdown a:hover { background-color: var(--accent-blue); color: white; }
.menu-divider { height: 1px; background-color: var(--border-color); margin: 4px 0; }


/* =============================================== */
/* ESTILOS RESPONSIVOS (MELHORADO)
/* =============================================== */
@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; /* Permite que a toolbar cresça se o conteúdo quebrar linha */
    padding-bottom: 10px;
  }
  body {
      padding-top: 80px; /* Aumenta o espaço para a toolbar maior */
  }
  .info-display-group {
    order: 3; /* Move o grupo de informações para o final da toolbar */
    width: 100%;
    justify-content: space-around;
  }
  .spacer {
    display: none;
  }
}

@media (max-width: 768px) {
  body {
    padding-left: 0 !important;
  }
  .sample-browser {
    transform: translateX(-100%);
    position: fixed; /* Volta a ser fixo para deslizar por cima */
    width: 280px;
  }
  body:not(.sidebar-hidden) .sample-browser {
    transform: translateX(0);
  }
  #sidebar-toggle {
    left: 5px;
    transform: translateX(0);
    position: fixed; /* Garante que o botão fique visível */
  }
  .global-toolbar {
    left: 0;
    padding-left: 45px;
  }
  .main-content {
      padding: 10px;
      padding-top: 85px; /* Ajusta o padding para a toolbar fixa */
  }
  .track-lane, .audio-track-lane {
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
    padding: 15px;
  }
  .track-info,
  .track-controls {
    width: 100%;
  }
  .track-controls {
    border-left: none;
    padding-left: 0;
    justify-content: space-around;
  }
  .step-sequencer-wrapper {
    width: 100%;
  }
}

.spectrogram-view-wrapper {
  position: relative; /* Essencial para o posicionamento absoluto do filho */
  overflow: hidden;   /* Garante que a agulha não saia dos limites */
}

.playhead {
  position: absolute;
  top: 0;
  left: 0; /* A posição será atualizada via JavaScript */
  width: 2px;
  height: 100%;
  background-color: var(--accent-red, #e74c3c); /* Use uma cor de destaque */
  z-index: 10;
  pointer-events: none; /* Impede que a agulha intercepte cliques do mouse */
  transition: background-color 0.3s; /* Efeito suave ao parar */
}