/* ════════════════════════════════════════════════════════════════
   EHDARKMUSE — SIMPLE MODE REDESIGN
   ════════════════════════════════════════════════════════════════
   Card-based, centered, purple-accent layout that replaces the
   sidebar-driven Simple Mode. Loaded only while Simple Mode is
   active (body.simple-mode).
   ════════════════════════════════════════════════════════════════ */

/* ── Colour tokens for Simple Mode (purple accent) ─────────────── */
/* v2.23: bg/card/text tokens DERIVE from the theme palette variables
   (--bg, --bg2, --bg3, --text, etc.) so that palette switches and the
   brightness slider in the ◈ panel propagate to Simple Mode. Before,
   all six neutral tokens were hardcoded hex values, which meant Simple
   Mode visually ignored the user's palette choice. Purple accent and
   "good" green stay hardcoded — they ARE the Simple Mode identity. */
.sr-root {
  --sr-purple:   #8b5cf6;
  --sr-purple-2: #a78bfa;
  --sr-purple-d: #6d3fdf;
  --sr-bg:       var(--bg, #0c0c14);
  --sr-card:     var(--bg2, #131321);
  --sr-card-2:   var(--bg3, #1a1a2c);
  --sr-border:   rgba(255,255,255,.06);
  --sr-border-2: rgba(255,255,255,.1);
  --sr-text:     var(--text, #e8e6ee);
  --sr-text-2:   var(--text2, #a9a4b5);
  --sr-text-3:   rgba(255,255,255,.4);
  --sr-good:     #4ec77a;
}

/* While Simple Mode is on, hide the legacy overlay UI we replaced */
body.simple-mode-active #simpleModeOverlay > .sm2-topbar,
body.simple-mode-active #simpleModeOverlay > div > div:first-child,        /* legacy left sidebar */
body.simple-mode-active #simpleModeOverlay > .sm2-transport,
body.simple-mode-active #simpleModeOverlay > #smOnboarding,
body.simple-mode-active #simpleModeOverlay > div:last-child[style*="height:28px"] {
  /* We use a JS-driven hide via .sr-active instead to avoid clobbering 
     anything important — this rule is a no-op without .sr-active. */
}
body.simple-mode-active #simpleModeOverlay.sr-active > *:not(.sr-root) {
  display: none !important;
}

/* ── Root layout ───────────────────────────────────────────────── */
.sr-root {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  /* v2.23: derive gradient from theme. --ehdm-bg-deepest is always
     slightly darker than --bg in every preset, so it makes a natural
     subtle gradient. Fallback to original colors if vars aren't set. */
  background: linear-gradient(180deg,
              var(--bg, #0d0d18) 0%,
              var(--ehdm-bg-deepest, #08080f) 100%);
  color: var(--sr-text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  overflow-y: auto;
  z-index: 1;
}

/* ── Top bar ───────────────────────────────────────────────────── */
.sr-topbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 32px;
  border-bottom: 1px solid var(--sr-border);
}
.sr-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 220px;
}
.sr-logo-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(139,92,246,.2), rgba(109,63,223,.1));
  border: 1px solid rgba(139,92,246,.35);
  border-radius: 8px;
  color: var(--sr-purple-2);
  font-size: 18px;
}
.sr-logo-text {
  font-family: 'Cinzel', serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--sr-text);
  line-height: 1;
}
.sr-logo-text em {
  color: var(--sr-purple-2);
  font-style: normal;
}
.sr-logo-sub {
  display: block;
  font-family: 'Cinzel', serif;
  font-size: 9px;
  letter-spacing: 2.2px;
  color: var(--sr-text-3);
  text-transform: uppercase;
  margin-top: 3px;
}
.sr-proj-wrap {
  flex: 1;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--sr-card);
  border: 1px solid var(--sr-border-2);
  border-radius: 8px;
  padding: 9px 14px;
}
.sr-proj-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--sr-text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
}
.sr-proj-edit {
  background: none;
  border: none;
  color: var(--sr-text-3);
  cursor: pointer;
  padding: 4px;
  font-size: 13px;
  transition: color .15s;
}
.sr-proj-edit:hover { color: var(--sr-purple-2); }
.sr-topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.sr-icon-btn {
  height: 38px;
  padding: 0 14px;
  background: transparent;
  border: 1px solid var(--sr-border-2);
  border-radius: 8px;
  color: var(--sr-text-2);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: all .15s;
}
.sr-icon-btn:hover {
  border-color: var(--sr-border-2);
  background: rgba(255,255,255,.03);
  color: var(--sr-text);
}
.sr-icon-only {
  width: 38px;
  padding: 0;
  justify-content: center;
}
.sr-generate-btn {
  height: 38px;
  padding: 0 22px;
  background: linear-gradient(180deg, var(--sr-purple), var(--sr-purple-d));
  border: 1px solid rgba(167,139,250,.5);
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 1.5px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .15s;
  box-shadow: 0 4px 18px rgba(139,92,246,.35);
}
.sr-generate-btn:hover {
  background: linear-gradient(180deg, var(--sr-purple-2), var(--sr-purple));
  transform: translateY(-1px);
}

/* ── Stepper ───────────────────────────────────────────────────── */
.sr-steps {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 18px 32px;
  background: rgba(0,0,0,.18);
}
.sr-step {
  display: flex;
  align-items: center;
  gap: 12px;
}
.sr-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  display: grid;
  place-items: center;
  font-family: 'Cinzel', serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--sr-text-2);
  flex-shrink: 0;
  transition: all .2s;
}
.sr-step.active .sr-step-num {
  background: linear-gradient(180deg, var(--sr-purple), var(--sr-purple-d));
  border-color: var(--sr-purple);
  color: #fff;
  box-shadow: 0 0 14px rgba(139,92,246,.45);
}
.sr-step.done .sr-step-num {
  background: rgba(139,92,246,.18);
  border-color: rgba(139,92,246,.45);
  color: var(--sr-purple-2);
}
.sr-step-info { line-height: 1.2; min-width: 0; }
.sr-step-title {
  font-family: 'Cinzel', serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.2px;
  color: var(--sr-text);
  text-transform: uppercase;
}
.sr-step-desc {
  font-size: 11px;
  color: var(--sr-text-3);
  margin-top: 2px;
}

/* ── Main scroll body ──────────────────────────────────────────── */
.sr-body {
  flex: 1;
  padding: 22px 32px 40px;
  min-height: 0;
  overflow-y: auto;
}

/* ── Top row : 4 picker cards ──────────────────────────────────── */
.sr-row-top {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.sr-card {
  background: var(--sr-card);
  border: 1px solid var(--sr-border);
  border-radius: 10px;
  padding: 20px 22px;
}
.sr-card-hdr {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
}
.sr-card-icon {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: var(--sr-purple-2);
  font-size: 16px;
}
.sr-card-title {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--sr-text);
  text-transform: uppercase;
}
.sr-card-info {
  margin-left: auto;
  font-size: 11px;
  color: var(--sr-text-3);
  cursor: help;
}

/* select + input controls inside cards */
.sr-select,
.sr-input {
  width: 100%;
  height: 42px;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  border-radius: 7px;
  color: var(--sr-text);
  font-family: inherit;
  font-size: 13px;
  padding: 0 14px;
  outline: none;
  cursor: pointer;
  transition: border-color .15s;
}
.sr-select:hover,
.sr-input:focus {
  border-color: rgba(139,92,246,.5);
}
.sr-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%23a9a4b5' stroke-width='1.6'><path d='M2 2.5l4 3 4-3'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px 8px;
  padding-right: 32px;
}
.sr-card-sub {
  margin-top: 10px;
  font-size: 11px;
  color: var(--sr-text-3);
  line-height: 1.4;
}

/* Emotion chips inside card */
.sr-em-chips {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.sr-em-chip {
  height: 32px;
  background: transparent;
  border: 1px solid var(--sr-border-2);
  border-radius: 6px;
  color: var(--sr-text-2);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.sr-em-chip:hover {
  border-color: rgba(139,92,246,.45);
  color: var(--sr-text);
}
.sr-em-chip.active {
  background: rgba(139,92,246,.15);
  border-color: rgba(139,92,246,.6);
  color: var(--sr-purple-2);
}

/* Tempo big number + slider */
.sr-tempo-big {
  text-align: center;
  font-family: 'Cinzel', serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--sr-text);
  line-height: 1;
  margin: 4px 0 14px;
}
.sr-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--sr-card-2);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.sr-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--sr-purple);
  border: 2px solid #fff;
  border-radius: 50%;
  cursor: grab;
  box-shadow: 0 1px 4px rgba(139,92,246,.5);
}
.sr-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--sr-purple);
  border: 2px solid #fff;
  border-radius: 50%;
  cursor: grab;
}
.sr-slider-ends {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--sr-text-3);
  text-transform: uppercase;
  margin-top: 6px;
}
.sr-slider-range {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--sr-text-3);
  margin-top: 2px;
}

/* Tempo quick buttons */
.sr-tempo-quick {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  margin-top: 12px;
}
.sr-tempo-quick button {
  height: 32px;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  border-radius: 6px;
  color: var(--sr-text-2);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.sr-tempo-quick button:hover {
  border-color: rgba(139,92,246,.4);
  color: var(--sr-text);
}
.sr-tempo-quick button.primary {
  background: rgba(139,92,246,.15);
  border-color: rgba(139,92,246,.5);
  color: var(--sr-purple-2);
}

/* Duration big number + buttons */
.sr-duration-big {
  text-align: center;
  font-family: 'Cinzel', serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--sr-text);
  line-height: 1;
  margin: 4px 0 16px;
}
.sr-duration-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.sr-duration-row button {
  height: 36px;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  border-radius: 7px;
  color: var(--sr-text-2);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
}
.sr-duration-row button:hover {
  border-color: rgba(139,92,246,.4);
  color: var(--sr-text);
}
.sr-duration-row button.active {
  background: rgba(139,92,246,.15);
  border-color: rgba(139,92,246,.6);
  color: var(--sr-purple-2);
  font-weight: 600;
}

/* ── Advanced Settings card ────────────────────────────────────── */
.sr-adv {
  background: var(--sr-card);
  border: 1px solid var(--sr-border);
  border-radius: 10px;
  padding: 22px 24px;
  margin-bottom: 16px;
}
.sr-adv-hdr {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.sr-adv-hdr .sr-card-icon {
  color: var(--sr-purple-2);
}
.sr-adv-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px 22px;
  margin-bottom: 22px;
}
.sr-adv-cell .sr-lbl {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--sr-text-3);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.sr-adv-cell .sr-lbl .sr-info {
  font-size: 11px;
  cursor: help;
  color: rgba(255,255,255,.25);
}
.sr-pct-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--sr-text);
  margin-bottom: 6px;
}
.sr-pct-row .sr-pct-val {
  color: var(--sr-text);
  font-weight: 600;
}
.sr-adv-cell .sr-slider-range {
  font-size: 10px;
}

/* Instrument toggles row */
.sr-inst-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--sr-border);
}
.sr-inst-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.sr-inst-name {
  font-size: 12px;
  letter-spacing: 1.5px;
  color: var(--sr-text-2);
  text-transform: uppercase;
}
.sr-toggle {
  position: relative;
  width: 38px;
  height: 22px;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  border-radius: 99px;
  cursor: pointer;
  transition: all .2s;
  flex-shrink: 0;
}
.sr-toggle::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: #6b6b7e;
  border-radius: 50%;
  transition: all .2s;
}
.sr-toggle.on {
  background: var(--sr-purple);
  border-color: var(--sr-purple-2);
}
.sr-toggle.on::after {
  left: 18px;
  background: #fff;
}

/* ── Music Preview card ────────────────────────────────────────── */
.sr-preview {
  background: var(--sr-card);
  border: 1px solid var(--sr-border);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
.sr-preview-hdr {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--sr-text);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.sr-preview-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.sr-play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--sr-purple);
  border: none;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all .15s;
  box-shadow: 0 4px 14px rgba(139,92,246,.4);
}
.sr-play-btn:hover {
  background: var(--sr-purple-2);
  transform: scale(1.05);
}
.sr-wave-wrap {
  flex: 1;
  height: 60px;
  background: rgba(0,0,0,.2);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}
.sr-wave-wrap canvas { display: block; width: 100%; height: 100%; }
.sr-wave-time {
  position: absolute;
  bottom: 4px;
  font-size: 10px;
  color: var(--sr-text-3);
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
}
.sr-wave-time.start { left: 8px; }
.sr-wave-time.end   { right: 8px; }
.sr-vol-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.sr-vol-wrap .sr-slider { width: 90px; }

/* ── Global Prompt card ────────────────────────────────────────── */
.sr-prompt {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  background: var(--sr-card);
  border: 1px solid var(--sr-border);
  border-radius: 10px;
  padding: 20px 24px;
}
.sr-prompt-hdr {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.sr-prompt-lbl {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--sr-purple-2);
  text-transform: uppercase;
}
.sr-prompt-edit-note {
  font-size: 11px;
  color: var(--sr-text-3);
}
.sr-prompt-textarea {
  width: 100%;
  min-height: 92px;
  background: transparent;
  border: none;
  color: var(--sr-text-2);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.55;
  outline: none;
  resize: vertical;
}
.sr-prompt-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
}
.sr-prompt-count {
  font-size: 11px;
  color: var(--sr-text-3);
  font-family: 'Cinzel', serif;
  letter-spacing: 1px;
}
.sr-prompt-edit-icon {
  background: none;
  border: none;
  color: var(--sr-text-3);
  cursor: pointer;
  font-size: 14px;
  transition: color .15s;
}
.sr-prompt-edit-icon:hover { color: var(--sr-purple-2); }
.sr-export-col {
  border-left: 1px solid var(--sr-border);
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 180px;
}
.sr-export-lbl {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--sr-text);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.sr-export-btn {
  height: 38px;
  padding: 0 14px;
  background: var(--sr-card-2);
  border: 1px solid var(--sr-border-2);
  border-radius: 7px;
  color: var(--sr-text);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all .15s;
}
.sr-export-btn:hover {
  border-color: rgba(139,92,246,.5);
  background: rgba(139,92,246,.07);
}
.sr-export-btn .sr-export-ico {
  color: var(--sr-purple-2);
}

/* ── Randomize hint button (top of body) ───────────────────────── */
.sr-random-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.sr-random-btn {
  padding: 9px 16px;
  background: linear-gradient(180deg, rgba(139,92,246,.18), rgba(109,63,223,.08));
  border: 1px solid rgba(139,92,246,.4);
  border-radius: 7px;
  color: var(--sr-purple-2);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 1.2px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .15s;
}
.sr-random-btn:hover {
  background: linear-gradient(180deg, rgba(139,92,246,.28), rgba(109,63,223,.16));
  border-color: rgba(167,139,250,.6);
  color: #fff;
}
.sr-random-mode {
  font-size: 11px;
  color: var(--sr-text-3);
  letter-spacing: 1px;
  font-family: 'Cinzel', serif;
  text-transform: uppercase;
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1280px) {
  .sr-row-top { grid-template-columns: repeat(2, 1fr); }
  .sr-adv-grid { grid-template-columns: repeat(3, 1fr); }
  .sr-inst-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 800px) {
  .sr-row-top,
  .sr-adv-grid,
  .sr-inst-row { grid-template-columns: 1fr 1fr; }
  .sr-prompt { grid-template-columns: 1fr; }
  .sr-export-col { border-left: none; border-top: 1px solid var(--sr-border); padding-left: 0; padding-top: 16px; }
  .sr-steps { grid-template-columns: 1fr 1fr; }
}