/* ==========================================================================
   INTERACTIVE MODULES: AUDIO PLAYER, VU METERS, CALCULATOR, CHECKLISTS
   ========================================================================== */

/* ---------- HARDWARE LED VU METER ---------- */
.vu-meter-bar {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 38px;
  width: 100%;
  padding: 4px 6px;
  background: rgba(10, 8, 7, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.vu-segment {
  flex: 1 1 0;
  min-width: 3px;
  max-width: 8px;
  background: var(--amber-dim);
  border-radius: 1px 1px 0 0;
  height: var(--h, 15%);
  transition: height 0.08s ease-out, background-color 0.15s ease;
}

.vu-segment.active-mid {
  background: var(--amber-primary);
  box-shadow: 0 0 6px var(--amber-glow);
}

.vu-segment.active-peak {
  background: var(--red-peak);
  box-shadow: 0 0 8px rgba(255, 59, 48, 0.7);
}

/* Meter header ribbon */
.meter-ribbon {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 32px;
  width: 100%;
  overflow: hidden;
  opacity: 0.85;
}

.meter-ribbon span {
  flex: 1 1 0;
  min-width: 2px;
  max-width: 6px;
  background: var(--amber-dim);
  border-radius: 1px 1px 0 0;
  height: var(--h, 25%);
  transition: height 2.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.meter-ribbon span.peak {
  background: var(--red-accent);
}

/* ---------- A/B AUDIO COMPARISON PLAYER ---------- */
.audio-player-card {
  background: linear-gradient(180deg, #181412 0%, #100e0d 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 34px 30px;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.audio-player-card::after {
  content: "ANALOG / DIGITAL DSP ENGINE";
  position: absolute;
  top: 14px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--amber-dim);
  pointer-events: none;
}

.player-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.player-title-box {
  display: flex;
  flex-direction: column;
}

.player-track-select {
  display: flex;
  gap: 8px;
  background: var(--bg-main);
  padding: 4px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

.track-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.track-btn.active {
  background: var(--amber-primary);
  color: #000;
  font-weight: 600;
}

/* Visualizer Screen Canvas */
.visualizer-screen {
  background: #080605;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  height: 120px;
  position: relative;
  margin-bottom: 24px;
  overflow: hidden;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.8);
}

.visualizer-screen canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.visualizer-overlay {
  position: absolute;
  top: 10px;
  left: 12px;
  display: flex;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--amber-light);
  letter-spacing: 0.1em;
  pointer-events: none;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.live-indicator::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-ok);
  box-shadow: 0 0 6px var(--green-ok);
}

/* A/B Switcher Core Component */
.ab-switch-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 28px;
  padding: 16px;
  background: rgba(13, 11, 10, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
}

.ab-label {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.ab-label.label-a {
  color: var(--text-muted);
}
.ab-label.label-a.active {
  color: #ff9f43;
  text-shadow: 0 0 10px rgba(255, 159, 67, 0.4);
}

.ab-label.label-b {
  color: var(--text-muted);
}
.ab-label.label-b.active {
  color: var(--amber-primary);
  text-shadow: 0 0 12px var(--amber-glow);
}

.toggle-switch-hardware {
  position: relative;
  width: 72px;
  height: 36px;
  background: #080605;
  border: 2px solid var(--border-medium);
  border-radius: 18px;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.toggle-switch-hardware:hover {
  border-color: var(--amber-primary);
}

.toggle-knob {
  position: absolute;
  top: 4px;
  left: 5px;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #d4d4d4, #737373);
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.8), inset 0 1px 1px #fff;
  transition: transform var(--transition-normal);
}

.toggle-switch-hardware.state-b .toggle-knob {
  transform: translateX(34px);
  background: linear-gradient(135deg, #f5af65, #e2933f);
  box-shadow: 0 0 10px var(--amber-glow);
}

/* Player Controls Bar */
.player-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.play-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-play-toggle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--amber-primary);
  color: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  box-shadow: 0 0 20px var(--amber-glow);
}

.btn-play-toggle:hover {
  transform: scale(1.08);
  background: var(--amber-light);
  color: #000;
}

.time-display {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.fader-control-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.fader-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.hardware-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 110px;
  height: 6px;
  background: #080605;
  border: 1px solid var(--border-medium);
  border-radius: 3px;
  outline: none;
}

.hardware-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 22px;
  background: var(--amber-primary);
  border-radius: 2px;
  cursor: pointer;
  box-shadow: 0 0 6px var(--amber-glow);
}

/* Audio Comparison Note */
.comparison-status-badge {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.comparison-status-badge strong {
  color: var(--amber-primary);
}

/* ---------- INTERACTIVE PROJECT & PRICE CALCULATOR ---------- */
.calculator-container {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 44px 38px;
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 40px;
  box-shadow: var(--shadow-md);
}

.calc-section-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-select-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.service-choice-card {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 16px 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  position: relative;
}

.service-choice-card input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.service-choice-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-surface-elevated);
}

.service-choice-card.selected {
  border-color: var(--amber-primary);
  background: var(--amber-subtle);
  box-shadow: 0 0 16px var(--amber-glow);
}

.choice-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.choice-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.choice-base-price {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--amber-primary);
  margin-top: 8px;
  font-weight: 600;
}

/* Stepper / Slider for track count */
.track-counter-box {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 20px;
  margin-bottom: 28px;
}

.track-counter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.track-count-display {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--amber-primary);
}

.stepper-controls {
  display: flex;
  gap: 8px;
}

.btn-step {
  width: 34px;
  height: 34px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.btn-step:hover {
  border-color: var(--amber-primary);
  color: var(--amber-primary);
}

/* Add-ons Checkbox List */
.addons-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.addon-checkbox-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 14px 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.addon-checkbox-label:hover {
  border-color: var(--border-medium);
}

.addon-checkbox-label.checked {
  border-color: var(--amber-primary);
  background: rgba(226, 147, 63, 0.05);
}

.addon-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.addon-left input[type="checkbox"] {
  accent-color: var(--amber-primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.addon-title {
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 500;
}

.addon-cost {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--amber-primary);
  font-weight: 600;
}

/* Calculation Result Box */
.calc-summary-side {
  background: linear-gradient(165deg, #1b1714 0%, #110e0c 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.summary-items-list {
  list-style: none;
  margin-bottom: 24px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.summary-row.total-row {
  border-bottom: none;
  border-top: 2px solid var(--border-strong);
  margin-top: 14px;
  padding-top: 16px;
  align-items: flex-end;
}

.total-label {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--text-primary);
  font-weight: 800;
  text-transform: uppercase;
}

.total-price-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--amber-primary);
  line-height: 1;
  text-shadow: 0 0 20px var(--amber-glow);
}

.calc-note-box {
  background: rgba(13, 11, 10, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.4;
}

/* ---------- STEM UPLOAD & PREP CHECKLIST ---------- */
.prep-checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.prep-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all var(--transition-fast);
}

.prep-item:hover {
  border-color: var(--border-strong);
}

.prep-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--amber-subtle);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber-primary);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.prep-item h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.prep-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---------- FAQ ACCORDION ---------- */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-card.open {
  border-color: var(--border-strong);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-icon {
  width: 22px;
  height: 22px;
  color: var(--amber-primary);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-card.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 24px;
}

.faq-card.open .faq-answer {
  padding: 0 24px 22px;
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ---------- RESPONSIVE INTERACTIVE ---------- */
@media (max-width: 960px) {
  .calculator-container {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 22px;
  }
  .service-select-grid {
    grid-template-columns: 1fr;
  }
  .prep-checklist {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .player-header {
    flex-direction: column;
    align-items: center;
  }

  .player-track-select,
  .player-controls-bar,
  .play-actions,
  .fader-control-group,
  .stepper-controls,
  .consent-actions,
  .consent-modal-footer {
    justify-content: center;
  }

  .player-track-select {
    flex-wrap: wrap;
  }

  .btn-play-toggle,
  .btn-step,
  .btn-close-consent {
    margin-inline: auto;
  }

  .player-controls-bar {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .ab-switch-wrapper {
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  .faq-question {
    justify-content: center;
    text-align: center;
    gap: 12px;
  }
}
/* ==========================================================================
   CUSTOM CONSENT & PRIVACY MANAGER (DSGVO / TTDSG KONFORM)
   ========================================================================== */

.consent-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 6, 5, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.consent-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Floating Banner */
.consent-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 680px;
  margin: 0 auto;
  z-index: 9999;
  background: rgba(20, 17, 16, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8), 0 0 30px rgba(226, 147, 63, 0.15);
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.consent-banner.show {
  transform: translateY(0);
  opacity: 1;
}

.consent-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.consent-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--amber-subtle);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber-primary);
  font-size: 0.9rem;
}

.consent-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  text-transform: uppercase;
  margin: 0;
}

.consent-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
}

.consent-text a {
  color: var(--amber-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.consent-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Modal Dialog for Granular Settings */
.consent-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -46%) scale(0.96);
  width: 92%;
  max-width: 640px;
  max-height: 88vh;
  overflow-y: auto;
  z-index: 10001;
  background: #141110;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 34px 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.consent-modal.active {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
}

.consent-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.btn-close-consent {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.btn-close-consent:hover {
  border-color: var(--amber-primary);
  color: var(--amber-primary);
}

.consent-category-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 26px;
}

.consent-cat-card {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.consent-cat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.consent-cat-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.consent-switch {
  position: relative;
  width: 44px;
  height: 24px;
  display: inline-block;
}

.consent-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.consent-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #26211d;
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  transition: .3s;
}

.consent-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-muted);
  border-radius: 50%;
  transition: .3s;
}

.consent-switch input:checked + .consent-slider {
  background-color: var(--amber-primary);
  border-color: var(--amber-primary);
}

.consent-switch input:checked + .consent-slider:before {
  transform: translateX(20px);
  background-color: #0d0b0a;
}

.consent-switch input:disabled + .consent-slider {
  opacity: 0.6;
  cursor: not-allowed;
}

.consent-cat-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

.consent-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

/* Floating Privacy Manager Trigger Button */
.privacy-trigger-btn {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 980;
  background: rgba(20, 17, 16, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.privacy-trigger-btn:hover {
  border-color: var(--amber-primary);
  color: var(--amber-primary);
  background: rgba(20, 17, 16, 0.98);
}

@media (max-width: 768px) {
  .consent-banner {
    bottom: 12px;
    left: 12px;
    right: 12px;
    padding: 18px 20px;
  }
  .privacy-trigger-btn {
    bottom: 22px;
    left: 22px;
    padding: 6px 10px;
  }
  .consent-actions {
    flex-direction: column;
    width: 100%;
  }
  .consent-actions .btn {
    width: 100%;
  }
}