/**
 * Eco — layout & components mapped to filipe-ui tokens
 */

* {
  box-sizing: border-box;
}

body.filipe-ui {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

body.app-locked .eco-app {
  pointer-events: none;
  user-select: none;
}

body.app-locked {
  overflow: hidden;
}

body.is-dragging {
  background-color: color-mix(in srgb, var(--filipe-bg) 70%, var(--filipe-accent) 30%);
}

.eco-app {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: min(100%, 1240px);
  padding: 1.25rem 1rem 2rem;
}

/* ── Header ── */
.app-header {
  width: 100%;
  text-align: center;
}

.app-title {
  margin: 0 0 0.5rem;
  font-family: var(--filipe-font-display);
  font-size: var(--filipe-text-h1);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--filipe-text);
}

.app-intro {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: 0.75rem 1rem;
  max-width: 50rem;
  margin: 0 auto;
}

.instructions {
  margin: 0;
  flex: 1 1 22rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-family: var(--filipe-font-alt);
  font-size: 24px;
  line-height: 1.6;
  color: var(--filipe-text-muted);
  text-align: center;
}

.instructions-line {
  display: block;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.help-btn {
  flex-shrink: 0;
  padding: 0.5rem 1.15rem;
  font-size: 1rem;
}

.site-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  opacity: 0.85;
  transition: opacity var(--filipe-transition), transform var(--filipe-transition);
}

.site-link:hover {
  opacity: 1;
  transform: scale(1.05);
}

.site-link img {
  display: block;
  width: 30px;
  height: 30px;
}

.instructions kbd {
  display: inline-block;
  padding: 0.12em 0.45em;
  border: 1px solid var(--filipe-border-soft);
  border-radius: var(--filipe-radius-sm);
  background: var(--filipe-panel-dark-2);
  color: var(--filipe-text-on-dark);
  font-family: var(--filipe-font-mono);
  font-size: 0.82em;
}

/* ── Toolbar ── */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1.25rem;
  width: 100%;
  padding: 1rem 1.25rem !important;
  box-shadow: var(--filipe-shadow-panel);
}

.toolbar.filipe-panel-dark {
  border-radius: var(--filipe-radius-lg);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.toolbar-label,
.checkbox-label {
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-on-dark);
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  user-select: none;
  transition: color var(--filipe-transition);
}

.checkbox-label:hover {
  color: var(--filipe-accent);
}

.midi-controls {
  flex-wrap: wrap;
  gap: 0.45rem 0.55rem;
}

.midi-select {
  min-width: 10rem;
  max-width: 14rem;
}

.midi-status {
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-meta);
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.midi-range-input {
  width: 3.4rem;
  padding: 0.35rem 0.4rem;
  border: 1px solid var(--filipe-border-soft);
  border-radius: var(--filipe-radius);
  background: var(--filipe-panel-dark-2);
  color: var(--filipe-text-on-dark);
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
}

.midi-range-input:focus {
  border-color: var(--filipe-accent);
  outline: none;
}

.midi-range-label {
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-accent);
  min-width: 4.5rem;
}

.file-btn {
  margin: 0;
}

.sample-controls {
  flex: 1 1 320px;
  align-items: stretch;
  gap: 0.75rem;
}

.sample-controls .file-btn {
  align-self: center;
  flex-shrink: 0;
}

.sample-or {
  align-self: center;
  flex-shrink: 0;
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-meta);
}

.sample-drop {
  flex: 1 1 200px;
  min-width: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sample-zone-hint {
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-meta);
}

.sample-status {
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-accent);
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sample-status[hidden],
.sample-zone-hint[hidden] {
  display: none;
}

.sample-status.is-loading {
  color: var(--filipe-accent);
}

.sample-status.is-error {
  color: var(--filipe-danger);
}

/* ── Drop zone ── */
.drop-zone {
  min-height: 2.35rem;
  padding: 0.5rem 1rem;
  border: 1.5px dashed var(--filipe-border-soft);
  border-radius: var(--filipe-radius-md);
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-meta);
  text-align: center;
  transition:
    border-color var(--filipe-transition),
    background-color var(--filipe-transition),
    color var(--filipe-transition);
}

.drop-zone.is-dragover {
  border-color: var(--filipe-accent);
  background-color: color-mix(in srgb, var(--filipe-panel-dark-2) 75%, var(--filipe-accent) 25%);
  color: var(--filipe-accent-hover);
}

/* ── Form controls ── */
.filipe-select {
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--filipe-border-soft);
  border-radius: var(--filipe-radius);
  background: var(--filipe-panel-dark-2);
  color: var(--filipe-text-on-dark);
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  cursor: pointer;
  transition: border-color var(--filipe-transition);
}

.filipe-select:hover,
.filipe-select:focus {
  border-color: var(--filipe-accent);
  outline: none;
}

.filipe-checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--filipe-accent);
  cursor: pointer;
}

/* ── Canvas stage ── */
.canvas-stage {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 1rem;
  border-radius: var(--filipe-radius-lg);
}

#canvas-container canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border: var(--filipe-canvas-border-width) solid var(--filipe-border);
  border-radius: var(--filipe-radius);
  box-shadow: var(--filipe-shadow-panel);
  touch-action: none;
}

/* ── Welcome overlay ── */
.welcome-overlay {
  z-index: 100;
}

.welcome-overlay.is-hidden {
  display: none;
}

.welcome-modal {
  position: relative;
  text-align: center;
  max-width: 520px;
  padding: 2rem 2.25rem 1.75rem;
}

.welcome-title {
  margin: 0 0 1rem;
  font-family: var(--filipe-font-display);
  font-size: var(--filipe-text-h2);
  font-weight: 700;
  color: var(--filipe-text);
}

.welcome-text {
  margin: 0 0 0.75rem;
  font-family: var(--filipe-font-alt);
  font-size: var(--filipe-text-body);
  line-height: 1.55;
  color: var(--filipe-text);
}

.welcome-hint {
  margin: 0 0 1.25rem;
  font-family: var(--filipe-font-mono);
  font-size: var(--filipe-text-small);
  color: var(--filipe-text-muted);
}

.welcome-start {
  font-size: var(--filipe-text-body);
  padding: 0.55rem 1.75rem;
}

.welcome-start:disabled {
  opacity: 0.65;
  cursor: wait;
}

/* ── Help dialog ── */
.help-overlay {
  z-index: 90;
}

.help-overlay.is-hidden {
  display: none;
}

.help-modal {
  position: relative;
  max-height: min(85vh, 720px);
  overflow-y: auto;
  padding: 1.75rem 2rem 1.5rem;
  text-align: left;
}

.help-title {
  margin: 0 2rem 1.25rem 0;
  font-family: var(--filipe-font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--filipe-text);
}

.help-section {
  margin-bottom: 1.25rem;
}

.help-section:last-child {
  margin-bottom: 0;
}

.help-heading {
  margin: 0 0 0.55rem;
  font-family: var(--filipe-font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--filipe-text);
}

.help-section p {
  margin: 0;
  font-family: var(--filipe-font-alt);
  font-size: 20px;
  line-height: 1.65;
  color: var(--filipe-text);
}

.help-section p + p {
  margin-top: 0.75rem;
}

.help-modes {
  margin: 0;
  padding-left: 1.2rem;
  font-family: var(--filipe-font-alt);
  font-size: 20px;
  line-height: 1.65;
  color: var(--filipe-text);
}

.help-modes li + li {
  margin-top: 0.55rem;
}

.help-modes strong {
  font-family: var(--filipe-font-mono);
  font-weight: 700;
}