/* ================================================
   深层释放 — Deep Dive Release
   四层砖塔 UI + 扫描释放交互
   ================================================ */

:root {
  /* Layer colors — from surface to deep */
  --layer4-color: #e8706a;  /* emotion - warm red */
  --layer3-color: #e0a243;  /* interpretation - amber */
  --layer2-color: #6b8fc4;  /* belief - steel blue */
  --layer1-color: #7a6bbf;  /* self - deep purple */
}

/* === Layout === */
.dd-layout {
  min-height: 100vh;
  padding-top: 76px;
  padding-bottom: var(--space-16);
  padding-left: var(--space-5);      /* 20px — desktop/tablet */
  padding-right: var(--space-5);
  margin: 0 auto;
  max-width: var(--max-width);
}

@media (max-width: 768px) {
  .dd-layout {
    padding-left: var(--space-4);    /* 16px — tablet */
    padding-right: var(--space-4);
  }
}

@media (max-width: 480px) {
  .dd-layout {
    padding-left: var(--space-3);    /* 12px — mobile */
    padding-right: var(--space-3);
    max-width: 100%;
  }
}

/* === Phase: Input === */
.dd-phase-input {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: var(--space-6);
}

.dd-input-card {
  max-width: 560px;
  width: 100%;
  text-align: center;
  padding: var(--space-16) var(--space-8) var(--space-8);
}

.dd-input-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.dd-input-subtitle {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.dd-textarea {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  resize: vertical;
  min-height: 120px;
  transition: border-color var(--transition);
  outline: none;
}

.dd-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), .1);
}

.dd-textarea::placeholder {
  color: var(--color-text-muted);
}

.dd-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: 14px 32px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  min-height: var(--touch-target);
}

@media (hover: hover) {
  .dd-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(var(--color-primary-rgb), .25);
  }
}

.dd-btn-primary:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none;
}

.dd-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  min-height: var(--touch-target);
}

@media (hover: hover) {
  .dd-btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
  }
}

/* === Phase: Tower === */
.dd-phase-tower {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

/* Scenario bar */
.dd-scenario-bar {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.dd-scenario-text {
  flex: 1;
  font-size: .92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  word-break: break-word;
}

.dd-btn-restart {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

@media (hover: hover) {
  .dd-btn-restart:hover {
    background: var(--color-bg-alt);
    color: var(--color-text);
  }
}

/* === Tower Structure === */
.dd-tower {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Layer */
.dd-layer {
  position: relative;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-5) var(--space-6);
  transition: border-color .4s ease, box-shadow .4s ease;
}

.dd-layer[data-layer="4"] { border-left: 4px solid var(--layer4-color); }
.dd-layer[data-layer="3"] { border-left: 4px solid var(--layer3-color); }
.dd-layer[data-layer="2"] { border-left: 4px solid var(--layer2-color); }
.dd-layer[data-layer="1"] { border-left: 4px solid var(--layer1-color); }

.dd-layer.dd-layer-active {
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), .15), var(--shadow-md);
}

/* Layer Header */
.dd-layer-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.dd-layer-badge {
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 10px;
  border-radius: 100px;
  color: #fff;
}

.dd-layer[data-layer="4"] .dd-layer-badge { background: var(--layer4-color); }
.dd-layer[data-layer="3"] .dd-layer-badge { background: var(--layer3-color); }
.dd-layer[data-layer="2"] .dd-layer-badge { background: var(--layer2-color); }
.dd-layer[data-layer="1"] .dd-layer-badge { background: var(--layer1-color); }

.dd-layer-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
  min-width: 0;
}

.dd-layer-desc {
  width: 100%;
  font-size: .85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-top: -2px;
}

.dd-btn-refresh {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition);
}

.dd-btn-refresh:active,
.dd-btn-refresh.dd-refreshing {
  animation: dd-spin .6s ease;
}

@keyframes dd-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@media (hover: hover) {
  .dd-btn-refresh:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), .05);
  }
}

/* Layer Items */
.dd-layer-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.dd-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  font-size: .92rem;
  line-height: 1.6;
  color: var(--color-text);
  transition: opacity .5s ease, transform .5s ease, background .3s ease;
}

.dd-item-bullet {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  transition: background .4s ease, transform .4s ease;
}

.dd-layer[data-layer="4"] .dd-item-bullet { background: var(--layer4-color); }
.dd-layer[data-layer="3"] .dd-item-bullet { background: var(--layer3-color); }
.dd-layer[data-layer="2"] .dd-item-bullet { background: var(--layer2-color); }
.dd-layer[data-layer="1"] .dd-item-bullet { background: var(--layer1-color); }

.dd-item-text {
  flex: 1;
}

/* Delete button on tower items */
.dd-item-delete {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .7rem;
  cursor: pointer;
  border-radius: 50%;
  opacity: 0;
  transition: opacity .2s ease, background .2s ease, color .2s ease;
  padding: 0;
}

@media (hover: hover) {
  .dd-item:hover .dd-item-delete {
    opacity: .6;
  }
  .dd-item-delete:hover {
    opacity: 1 !important;
    background: rgba(200, 100, 100, .1);
    color: #c86464;
  }
}

/* On touch devices, always show subtle delete button */
@media (hover: none) {
  .dd-item-delete {
    opacity: .4;
  }
}

/* Delete animation */
@keyframes dd-item-delete-out {
  0%   { opacity: 1; transform: translateX(0); max-height: 80px; }
  100% { opacity: 0; transform: translateX(20px); max-height: 0; padding-top: 0; padding-bottom: 0; margin-top: 0; margin-bottom: 0; }
}

.dd-item-deleting {
  animation: dd-item-delete-out .3s ease forwards;
  overflow: hidden;
  pointer-events: none;
}

/* Released state */
.dd-item.dd-released {
  opacity: .35;
}

.dd-item.dd-released .dd-item-bullet {
  transform: scale(0.4);
  opacity: .4;
}

.dd-item.dd-releasing {
  background: rgba(var(--color-primary-rgb), .08);
}

/* Skipped state */
.dd-item.dd-skipped {
  opacity: .55;
}

/* Add custom item row */
.dd-add-item-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.dd-add-item-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--touch-target-sm);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

@media (hover: hover) {
  .dd-add-item-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), .04);
  }
}

.dd-add-item-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
}

.dd-add-item-input {
  flex: 1;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: .92rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}

.dd-add-item-input:focus {
  border-color: var(--color-primary);
}

.dd-add-item-confirm,
.dd-add-item-cancel {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  font-size: .9rem;
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition);
}

.dd-add-item-confirm {
  color: var(--color-primary);
}

.dd-add-item-cancel {
  color: var(--color-text-muted);
}

@media (hover: hover) {
  .dd-add-item-confirm:hover {
    background: rgba(var(--color-primary-rgb), .1);
  }
  .dd-add-item-cancel:hover {
    background: var(--color-bg-alt);
  }
}

/* Connector between layers */
.dd-layer-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-2) 0;
  position: relative;
}

.dd-connector-line {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, var(--color-border), var(--color-text-muted));
  border-radius: 1px;
}

.dd-connector-label {
  font-size: .75rem;
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg);
}

/* Start Release button area */
.dd-start-release {
  text-align: center;
  padding: var(--space-10) 0 var(--space-6);
}

.dd-btn-scan {
  font-size: 1rem;
  padding: 16px 36px;
}

/* Loading skeleton for items */
.dd-item-skeleton {
  height: 20px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-bg-alt) 25%, var(--color-bg) 50%, var(--color-bg-alt) 75%);
  background-size: 200% 100%;
  animation: dd-shimmer 1.5s infinite;
}

@keyframes dd-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.dd-item-skeleton-set {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-2) 0;
}

/* === Phase: Scan Release === */
.dd-phase-scan {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: var(--space-6);
}

/* Scan topbar: back button + progress bar */
.dd-scan-topbar {
  width: 100%;
  max-width: 560px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.dd-scan-summary {
  width: 100%;
  max-width: 560px;
  margin-bottom: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), .08), rgba(255, 255, 255, .94));
  border: 1px solid rgba(var(--color-primary-rgb), .14);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.dd-scan-summary-label {
  margin-bottom: var(--space-2);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
}

.dd-scan-summary-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.dd-btn-back-tower {
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .82rem;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  min-height: var(--touch-target-sm);
  white-space: nowrap;
  transition: color var(--transition);
}

@media (hover: hover) {
  .dd-btn-back-tower:hover {
    color: var(--color-text);
  }
}

/* Progress bar */
.dd-scan-progress {
  flex: 1;
  min-width: 0;
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 2px;
  overflow: hidden;
}

.dd-scan-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--layer4-color), var(--layer3-color), var(--layer2-color), var(--layer1-color));
  border-radius: 2px;
  transition: width .4s ease;
  width: 0%;
}

/* Scan card */
.dd-scan-card {
  max-width: 520px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  justify-content: center;
  gap: var(--space-5);
  padding: var(--space-6);
}

.dd-scan-layer-label {
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 4px 14px;
  border-radius: 100px;
  color: #fff;
}

.dd-scan-layer-label[data-layer="4"] { background: var(--layer4-color); }
.dd-scan-layer-label[data-layer="3"] { background: var(--layer3-color); }
.dd-scan-layer-label[data-layer="2"] { background: var(--layer2-color); }
.dd-scan-layer-label[data-layer="1"] { background: var(--layer1-color); }

.dd-scan-item-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 460px;
  word-break: break-word;
}

.dd-scan-question {
  font-size: .95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Release buttons */
.dd-scan-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.dd-btn-release {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  padding: var(--space-4) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
  min-height: var(--touch-target);
}

.dd-btn-release .dd-btn-sub {
  font-size: .75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.dd-btn-release.is-complete {
  border-color: rgba(var(--color-primary-rgb), .28);
  background: rgba(var(--color-primary-rgb), .08);
}

.dd-btn-release.is-complete .dd-btn-sub::after {
  content: ' 已松开';
  font-weight: 700;
  color: var(--color-primary-dark);
}

.dd-btn-release:disabled {
  cursor: default;
  opacity: 1;
}

.dd-btn-release:focus,
.dd-btn-release:active {
  outline: none;
  box-shadow: none;
}

.dd-btn-release:not(.is-complete):not(:disabled) {
  background: var(--color-surface);
}

.dd-btn-resist {
  border-color: rgba(200, 100, 100, .3);
}

.dd-btn-identify {
  border-color: rgba(100, 130, 200, .3);
}

@media (hover: hover) {
  .dd-btn-resist:hover {
    border-color: #c86464;
    background: rgba(200, 100, 100, .05);
  }
  .dd-btn-identify:hover {
    border-color: #6482c8;
    background: rgba(100, 130, 200, .05);
  }
}

.dd-btn-skip {
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .82rem;
  cursor: pointer;
  padding: var(--space-2) var(--space-4);
  min-height: var(--touch-target-sm);
  transition: color var(--transition);
}

@media (hover: hover) {
  .dd-btn-skip:hover { color: var(--color-text-secondary); }
}

/* Back button in scan phase */
.dd-btn-back {
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .82rem;
  cursor: pointer;
  padding: var(--space-2) var(--space-4);
  min-height: var(--touch-target-sm);
  transition: color var(--transition);
}

@media (hover: hover) {
  .dd-btn-back:hover { color: var(--color-text-secondary); }
}

/* Navigation row: back + skip */
.dd-scan-nav-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  width: 100%;
}

/* Subtle open-release button */
.dd-btn-open-release {
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .78rem;
  cursor: pointer;
  padding: var(--space-1) var(--space-3);
  min-height: var(--touch-target-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  opacity: .6;
  margin-top: var(--space-1);
}

@media (hover: hover) {
  .dd-btn-open-release:hover {
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), .06);
    opacity: 1;
  }
}

/* Dissolve animation for released items */
@keyframes dd-dissolve {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.02); }
  100% { opacity: .35; transform: scale(1); }
}

.dd-item-dissolving {
  animation: dd-dissolve .6s ease forwards;
}

/* === Scan Done === */
.dd-scan-done {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
  padding: var(--space-10) var(--space-6);
  max-width: 480px;
  margin: 0 auto;
}

.dd-done-icon {
  font-size: 3rem;
  margin-bottom: var(--space-2);
}

.dd-done-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-text);
}

.dd-done-desc {
  color: var(--color-text-secondary);
  font-size: .95rem;
  line-height: 1.7;
}

.dd-done-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-4);
}

/* === Breathing pause between layers === */
.dd-breathe-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(var(--color-bg-rgb), .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  animation: dd-fade-in .5s ease;
}

@keyframes dd-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.dd-breathe-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), .15), rgba(var(--color-primary-rgb), .03));
  animation: dd-breathe 4s ease-in-out infinite;
}

@keyframes dd-breathe {
  0%, 100% { transform: scale(.8); opacity: .5; }
  50%      { transform: scale(1.2); opacity: 1; }
}

.dd-breathe-text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-text-secondary);
}

.dd-breathe-hint {
  font-size: .82rem;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* === History Section === */
.dd-history {
  max-width: 560px;
  width: 100%;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.dd-history-header {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.dd-history-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.dd-history-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

@media (hover: hover) {
  .dd-history-item:hover {
    border-color: var(--color-primary-light);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), .08);
  }
}

.dd-history-item-main {
  flex: 1;
  min-width: 0;
}

.dd-history-item-text {
  font-size: .9rem;
  color: var(--color-text);
  line-height: 1.5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dd-history-item-meta {
  display: flex;
  gap: var(--space-3);
  margin-top: 2px;
  font-size: .75rem;
  color: var(--color-text-muted);
}

.dd-history-progress {
  color: var(--color-primary);
  font-weight: 500;
}

.dd-history-item-delete {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: .7rem;
  cursor: pointer;
  border-radius: 50%;
  opacity: 0;
  transition: opacity .2s ease, background .2s ease, color .2s ease;
  padding: 0;
}

@media (hover: hover) {
  .dd-history-item:hover .dd-history-item-delete {
    opacity: .5;
  }
  .dd-history-item-delete:hover {
    opacity: 1 !important;
    background: rgba(200, 100, 100, .1);
    color: #c86464;
  }
}

@media (hover: none) {
  .dd-history-item-delete {
    opacity: .35;
  }
}

/* === Responsive === */
@media (max-width: 480px) {
  .dd-input-card {
    padding: var(--space-10) var(--space-4) var(--space-6);
  }

  .dd-input-title {
    font-size: 1.6rem;
  }

  .dd-phase-tower {
    padding: 0 var(--space-3);
  }

  .dd-layer {
    padding: var(--space-4) var(--space-4) var(--space-5);
  }

  .dd-layer-title {
    font-size: 1.05rem;
  }

  .dd-scan-item-text {
    font-size: 1.15rem;
  }

  .dd-scan-summary {
    padding: var(--space-4);
    margin-bottom: var(--space-3);
  }

  .dd-scan-summary-text {
    font-size: .95rem;
  }

  .dd-scan-actions {
    flex-direction: column;
    align-items: center;
  }

  .dd-btn-release {
    max-width: 100%;
    width: 100%;
  }

  .dd-history {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
  }

  .dd-history-item {
    padding: var(--space-3);
  }
}

@media (max-width: 768px) {
  .dd-textarea {
    font-size: max(1rem, 16px); /* prevent iOS zoom */
  }
}