/* Peaceful Heart Coffee - Core Styling */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--ink-primary);
  min-height: 100vh;
  min-width: 320px;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
  touch-action: manipulation;
  transition: background-color var(--duration-norm) var(--ease-smooth), color var(--duration-norm) var(--ease-smooth);
}

/* Atmospheric Ambient Background */
body::before,
body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
  opacity: 0.45;
  transition: opacity var(--duration-slow) var(--ease-smooth);
}

body::before {
  width: 460px;
  height: 460px;
  top: -120px;
  right: -100px;
  background: radial-gradient(circle, var(--amber-glow) 0%, rgba(213, 145, 97, 0.12) 60%, transparent 100%);
}

body::after {
  width: 520px;
  height: 520px;
  bottom: -150px;
  left: -120px;
  background: radial-gradient(circle, rgba(94, 200, 216, 0.15) 0%, rgba(138, 79, 43, 0.1) 70%, transparent 100%);
}

/* App Container */
.app-container {
  position: relative;
  z-index: 1;
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: max(12px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Top App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 4px 2px;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.brand-logo-wrap:hover {
  transform: scale(1.05) rotate(-3deg);
}

.brand-logo {
  width: 32px;
  height: 32px;
}

.brand-meta h1 {
  font-family: var(--font-rounded);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-meta p {
  font-size: 0.78rem;
  color: var(--ink-secondary);
  font-weight: 400;
  margin-top: 3px;
  letter-spacing: 0.01em;
}

/* Top Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  color: var(--ink-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-icon:hover {
  color: var(--ink-primary);
  background: var(--glass-elevated);
  border-color: var(--amber-gold);
  transform: translateY(-1px);
}

.btn-icon:active {
  transform: scale(0.95);
}

.btn-community {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  color: var(--amber-gold);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-community:hover {
  background: var(--amber-glow);
  border-color: var(--amber-gold);
  transform: translateY(-1px);
}

/* Geek Power Banner */
.geek-power-ribbon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.ribbon-left {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--ink-secondary);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
  animation: pulse-ring 2s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.6; }
}

.powered-highlight {
  font-weight: 700;
  color: var(--ink-primary);
  letter-spacing: 0.02em;
}

.ribbon-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-tertiary);
}

.geek-tag {
  color: var(--cyan-geek);
  background: var(--cyan-soft);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  font-weight: 500;
}

/* Navigation Tabs */
.view-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 5px;
  border-radius: var(--radius-md);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.view-tab {
  height: 46px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.view-tab.active {
  background: var(--glass-elevated);
  color: var(--amber-gold);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Main Grid Layout */
.main-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 14px;
  align-items: start;
}

/* Cards */
.glass-card {
  position: relative;
  border-radius: var(--radius-md);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
  overflow: hidden;
  transition: border-color var(--duration-norm) var(--ease-smooth);
}

.glass-card:hover {
  border-color: rgba(229, 185, 103, 0.28);
}

.card-content {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Equipment Preset Pills */
.presets-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.preset-meta-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber-gold);
  background: var(--espresso-soft);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border-subtle);
  font-weight: 500;
}

.section-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-tertiary);
}

.presets-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}

.preset-chip {
  flex: 0 0 auto;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--radius-full);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  color: var(--ink-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.preset-chip:hover {
  background: var(--glass-elevated);
  color: var(--ink-primary);
  border-color: var(--amber-gold);
}

.preset-chip.active {
  background: var(--amber-glow);
  color: var(--amber-gold);
  border-color: var(--amber-gold);
  box-shadow: 0 0 16px var(--amber-glow);
  font-weight: 600;
}

/* 3-Way Core Input Fields */
.ratio-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.matrix-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.app-input {
  width: 100%;
  height: 56px;
  padding: 0 34px 0 14px;
  border-radius: var(--radius-sm);
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: all var(--duration-fast) var(--ease-smooth);
  appearance: textfield;
}

.app-input:focus {
  outline: none;
  border-color: var(--field-border-active);
  box-shadow: 0 0 0 3px var(--amber-glow), inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.app-input::-webkit-outer-spin-button,
.app-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-unit {
  position: absolute;
  right: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-tertiary);
  pointer-events: none;
}

.input-prefix {
  position: absolute;
  left: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-tertiary);
  pointer-events: none;
}

.input-prefixed {
  padding-left: 28px;
  padding-right: 10px;
}

/* Stepper Micro Buttons */
.stepper-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stepper-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.btn-step {
  height: 32px;
  border-radius: var(--radius-xs);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  color: var(--ink-secondary);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-step:hover {
  background: var(--glass-elevated);
  color: var(--amber-gold);
  border-color: var(--amber-gold);
}

.btn-step:active {
  transform: scale(0.92);
}

/* Sync Hint */
.sync-tip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  color: var(--ink-tertiary);
  padding: 4px 2px;
}

/* Extraction Scheme Bar (Two-line Layout) */
.scheme-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-smooth);
}

.scheme-bar:hover {
  border-color: var(--amber-gold);
}

.scheme-label-col {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-shrink: 0;
}

.field-sublabel {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--ink-tertiary);
  letter-spacing: 0.05em;
}

.scheme-picker-wrap {
  position: relative;
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.scheme-display-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  gap: 2px;
  pointer-events: none;
}

.scheme-line-method {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--amber-gold);
}

.scheme-line-desc {
  font-size: 0.72rem;
  color: var(--ink-secondary);
}

.scheme-native-select {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

/* Precision Brewing Timer - Perimeter Rainbow Path */
.timer-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 14px;
  border-radius: var(--radius-md);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.timer-rect-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
}

.timer-rect-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 3.5;
}

.timer-rect-rainbow {
  fill: none;
  stroke: url(#rainbowGrad);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: url(#rainbowGlow);
  transition: stroke-dashoffset 0.08s linear;
}

.timer-main-display {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6px 0;
}

.timer-time {
  font-family: var(--font-mono);
  font-size: 2.85rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--ink-primary);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px rgba(229, 185, 103, 0.25);
}

.timer-stage-badge {
  margin-top: 8px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--espresso-soft);
  color: var(--amber-gold);
  border: 1px solid var(--glass-border);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.timer-controls {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 10px;
  width: 100%;
  max-width: 340px;
}

.btn-primary-timer {
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--amber-gold) 0%, var(--espresso) 100%);
  border: none;
  color: #140f0c;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--amber-glow);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-primary-timer:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(229, 185, 103, 0.4);
}

.btn-primary-timer:active {
  transform: scale(0.97);
}

.btn-secondary-timer {
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  color: var(--ink-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-secondary-timer:hover {
  background: var(--glass-elevated);
  color: var(--ink-primary);
}

/* Feature Badges (WakeLock, Audio, Vibrate) */
.timer-aux-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 340px;
  font-size: 0.74rem;
  color: var(--ink-tertiary);
  padding-top: 4px;
}

.aux-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border-subtle);
  user-select: none;
}

.aux-pill.active {
  color: var(--amber-gold);
  border-color: var(--amber-gold);
}

/* SCA Golden Cup Card Specifics */
.gold-methods-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 4px;
  border-radius: var(--radius-sm);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
}

.gold-method-btn {
  height: 38px;
  border: none;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--ink-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.gold-method-btn.active {
  background: var(--glass-elevated);
  color: var(--amber-gold);
  box-shadow: var(--shadow-sm);
}

.gold-inputs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.metrics-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.metric-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.metric-card-label {
  font-size: 0.74rem;
  color: var(--ink-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-card-value {
  margin-top: 6px;
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  color: var(--ink-primary);
}

.metric-card-value small {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-tertiary);
  margin-left: 2px;
}

/* SCA Chart Rail Container */
.sca-chart-card {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
}

.sca-verdict-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.sca-verdict-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.sca-verdict-title.warning {
  color: var(--danger);
}

.sca-verdict-target {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-secondary);
  text-align: right;
  line-height: 1.35;
}

.sca-rail-viewport {
  position: relative;
  height: 90px;
  margin: 16px 0 10px;
  display: flex;
  align-items: center;
}

.sca-rail-track {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: linear-gradient(
    90deg,
    rgba(239, 125, 110, 0.4) 0%,
    rgba(239, 125, 110, 0.4) 30%,
    var(--amber-gold) 30%,
    var(--amber-gold) 70%,
    rgba(239, 125, 110, 0.4) 70%,
    rgba(239, 125, 110, 0.4) 100%
  );
  position: relative;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

.sca-cursor-dot {
  --position: 50%;
  position: absolute;
  top: 50%;
  left: var(--position);
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--amber-gold);
  border: 4px solid var(--bg-primary);
  box-shadow: 0 0 16px var(--amber-gold), 0 2px 6px rgba(0, 0, 0, 0.5);
  transition: left 0.3s var(--ease-smooth);
}

.sca-rail-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--ink-tertiary);
}

.sca-diagnosis-note {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--ink-secondary);
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--glass-surface);
  border-left: 3px solid var(--amber-gold);
}

/* Geek Physics Accordion Console */
.geek-console {
  border-radius: var(--radius-md);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
}

.geek-console-toggle {
  width: 100%;
  padding: 14px 18px;
  background: transparent;
  border: none;
  color: var(--ink-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.geek-console-toggle:hover {
  color: var(--cyan-geek);
}

.geek-console-body {
  padding: 0 18px 18px;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid var(--glass-border-subtle);
}

.geek-console.expanded .geek-console-body {
  display: grid;
  padding-top: 14px;
}

.console-stat {
  padding: 10px;
  border-radius: var(--radius-xs);
  background: var(--glass-surface);
  font-size: 0.75rem;
}

.stat-label {
  color: var(--ink-tertiary);
}

.stat-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--cyan-geek);
  margin-top: 3px;
  font-size: 0.95rem;
}

/* Official Community QR Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(10, 8, 7, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-norm) var(--ease-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: min(540px, 100%);
  border-radius: var(--radius-xl);
  background: var(--glass-elevated);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--duration-norm) var(--ease-spring);
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

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

.modal-title h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.modal-title p {
  font-size: 0.78rem;
  color: var(--ink-secondary);
  margin-top: 3px;
}

.btn-close-modal {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--field-bg);
  color: var(--ink-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.qr-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.qr-box-card {
  padding: 16px 14px;
  border-radius: var(--radius-md);
  background: var(--field-bg);
  border: 1px solid var(--glass-border);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.qr-img-wrapper {
  width: 170px;
  height: 170px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  padding: 8px;
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
  cursor: zoom-in;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.qr-img-wrapper:hover {
  transform: scale(1.03);
}

.qr-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.qr-desc {
  font-size: 0.72rem;
  color: var(--ink-tertiary);
  line-height: 1.35;
}

.modal-footer-note {
  text-align: center;
  font-size: 0.74rem;
  color: var(--ink-tertiary);
  padding-top: 6px;
  border-top: 1px solid var(--glass-border-subtle);
}

/* PWA Install Banner */
.pwa-banner {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: min(440px, calc(100% - 32px));
  z-index: 90;
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  background: var(--glass-elevated);
  border: 1px solid var(--amber-gold);
  box-shadow: var(--shadow-lg), 0 0 30px var(--amber-glow);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  animation: slide-up 0.4s var(--ease-spring);
}

.pwa-banner.show {
  display: flex;
}

@keyframes slide-up {
  from { transform: translate(-50%, 40px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

.pwa-banner-text h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--amber-gold);
}

.pwa-banner-text p {
  font-size: 0.72rem;
  color: var(--ink-secondary);
}

.pwa-banner-btns {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-install {
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  background: var(--amber-gold);
  border: none;
  color: #1a1410;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
}

.btn-dismiss-install {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--ink-tertiary);
  cursor: pointer;
}

/* App Footer */
.app-footer {
  margin-top: 10px;
  padding: 12px 6px 8px;
  border-top: 1px solid var(--glass-border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--ink-tertiary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--field-bg);
  border: 1px solid var(--glass-border-subtle);
}

.footer-badge-item strong {
  color: var(--ink-secondary);
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--ink-tertiary);
  line-height: 1.5;
}

.footer-domain {
  color: var(--amber-gold);
  font-weight: 600;
  text-decoration: none;
}

#appVersionBadge {
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

#appVersionBadge:hover {
  border-color: var(--amber-gold);
  color: var(--amber-gold);
}

.btn-check-update {
  background: transparent;
  border: none;
  color: inherit;
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
  display: inline-grid;
  place-items: center;
  transition: transform 0.3s ease;
}

.btn-check-update.spinning {
  animation: spin-update 0.8s linear infinite;
}

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

/* Update Notification Toast */
.update-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  background: var(--glass-elevated);
  border: 1px solid var(--amber-gold);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 20px var(--amber-glow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s var(--ease-spring);
}

.update-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-primary);
}

.btn-toast-reload {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--amber-gold);
  border: none;
  color: #140f0c;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.btn-toast-reload:active {
  transform: scale(0.94);
}

/* Responsive Breakpoints & Equal-Height Layout */
@media (min-width: 861px) {
  .view-tabs {
    display: none !important;
  }
  .main-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: stretch;
  }
  .tool-card {
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  .tool-card .card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 12px;
  }
}

@media (max-width: 860px) {
  .view-tabs {
    display: grid;
  }
  .main-grid {
    grid-template-columns: 1fr;
  }
  .tool-card:not(.active) {
    display: none !important;
  }
}

@media (max-width: 520px) {
  .app-container {
    padding-left: 12px;
    padding-right: 12px;
    gap: 16px;
  }
  .brand-meta h1 {
    font-size: 1.22rem;
  }
  .card-content {
    padding: 16px 14px 20px;
  }
  .ratio-matrix {
    gap: 8px;
  }
  .app-input {
    height: 50px;
    font-size: 1.15rem;
    padding-right: 26px;
  }
  .stepper-grid {
    gap: 8px;
  }
  .timer-time {
    font-size: 2.7rem;
  }
  .qr-cards-grid {
    grid-template-columns: 1fr;
  }
  .qr-img-wrapper {
    width: 150px;
    height: 150px;
  }
  .geek-console-body {
    grid-template-columns: 1fr;
  }
}