/* ═══════════════════════════════════════════════════════════════
   PSP Polygon Transaction Tool — Fintech UI
   Visual layer only — all JS class/ID hooks preserved
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  /* Brand — Polygon purple + institutional navy */
  --brand-gold:       #8247E5;
  --brand-gold-hover: #6B39C0;
  --brand-gold-soft:  rgba(130, 71, 229, 0.14);
  --brand-gold-glow:  rgba(130, 71, 229, 0.32);

  /* Trust / security accent */
  --trust-teal:       #0d9488;
  --trust-teal-soft:  rgba(13, 148, 136, 0.12);

  /* Canvas — Polygon deep purple-black */
  --canvas-deep:      #0a0614;
  --canvas-mid:       #110820;
  --canvas-elevated:  #1a0d2e;
  --polygon-glow:     rgba(130, 71, 229, 0.18);
  --polygon-glow-soft:rgba(130, 71, 229, 0.08);
  --polygon-accent-light: #C4A8FF;

  /* Surfaces (cards on dark canvas) */
  --surface:          #ffffff;
  --surface-2:        #111827;
  --surface-muted:    #f8fafc;
  --surface-subtle:   #f1f5f9;
  --surface-inset:    #e8edf4;

  /* Text */
  --text-primary:     #0f172a;
  --text-secondary:   #475569;
  --text-muted:       #64748b;
  --text-on-dark:     #f1f5f9;
  --text-dim:         #94a3b8;

  /* Borders */
  --border:           #e2e8f0;
  --border-strong:    #cbd5e1;
  --border-focus:     rgba(130, 71, 229, 0.55);

  /* Semantic */
  --success:          #059669;
  --success-bg:       #ecfdf5;
  --success-border:   #a7f3d0;
  --danger:           #dc2626;
  --danger-bg:        #fef2f2;
  --danger-border:    #fecaca;
  --warning-bg:       #fffbeb;
  --warning-border:   #fde68a;
  --info-bg:          #f0f9ff;
  --info-border:      #bae6fd;

  /* Shape */
  --radius-xs:        6px;
  --radius-sm:        10px;
  --radius-md:        14px;
  --radius-lg:        18px;
  --radius-xl:        24px;
  --radius-pill:      999px;

  /* Elevation */
  --shadow-xs:        0 1px 2px rgba(6, 10, 18, 0.06);
  --shadow-sm:        0 2px 8px rgba(6, 10, 18, 0.08);
  --shadow-md:        0 8px 24px rgba(6, 10, 18, 0.12);
  --shadow-lg:        0 16px 48px rgba(6, 10, 18, 0.18);
  --shadow-card:      0 0 0 1px rgba(15, 23, 42, 0.05), 0 12px 32px rgba(6, 10, 18, 0.14);
  --shadow-active:    0 0 0 1px var(--brand-gold-soft), 0 0 0 4px rgba(130, 71, 229, 0.12), var(--shadow-md);

  /* Motion */
  --ease:             cubic-bezier(0.4, 0, 0.2, 1);
  --duration:         0.22s;
  --duration-slow:    0.4s;

  /* Type */
  --font-sans:        'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono:        'IBM Plex Mono', 'Courier New', monospace;

  --content-max:      760px;
  --header-h:         68px;
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

/* Dim Polygon logo watermark */
html::before {
  content: '';
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(200px, 38vw);
  height: min(174px, 33vw);
  transform: translate(-50%, -46%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.05;
  background: url('../images/polygon-logo.svg') center / contain no-repeat;
  filter: blur(0.4px);
  mask-image: radial-gradient(circle at center, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at center, #000 0%, transparent 72%);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-primary);
  background-color: var(--canvas-deep);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 120% 85% at 50% -35%, rgba(130, 71, 229, 0.24), transparent 58%),
    radial-gradient(ellipse 55% 45% at 0% 45%, rgba(130, 71, 229, 0.14), transparent 52%),
    radial-gradient(ellipse 45% 40% at 100% 75%, rgba(162, 119, 255, 0.12), transparent 48%),
    radial-gradient(ellipse 50% 35% at 50% 105%, rgba(107, 57, 192, 0.10), transparent 50%),
    linear-gradient(175deg, var(--canvas-deep) 0%, var(--canvas-mid) 42%, #0d0618 100%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.4;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  z-index: 0;
}

/* Subtle Polygon hex mesh */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='97' viewBox='0 0 84 97'%3E%3Cg fill='none' stroke='%238247E5' stroke-width='0.65'%3E%3Cpath d='M42 1 L82 24 L82 73 L42 96 L2 73 L2 24 Z'/%3E%3Cpath d='M42 1 L82 24 L42 47 L2 24 Z'/%3E%3Cpath d='M42 47 L82 24 L82 73 L42 96 Z'/%3E%3Cpath d='M42 47 L2 24 L2 73 L42 96 Z'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 84px 97px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 40%, #000 20%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 40%, #000 20%, transparent 72%);
}

/* ── Header ── */
.psp-header {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  min-height: var(--header-h);
  padding: 14px clamp(16px, 4vw, 32px);
  background: rgba(10, 6, 20, 0.86);
  backdrop-filter: blur(16px) saturate(1.25);
  -webkit-backdrop-filter: blur(16px) saturate(1.25);
  border-bottom: 1px solid rgba(130, 71, 229, 0.18);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.35), 0 1px 0 rgba(130, 71, 229, 0.06) inset;
  overflow: visible;
}

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

.psp-header .brand img {
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.psp-header .brand-title {
  margin: 0;
  color: var(--text-on-dark);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.psp-header .brand-sub {
  margin: 3px 0 0;
  color: var(--text-dim);
  font-size: 0.74rem;
  font-weight: 500;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-pill {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5eead4;
  background: var(--trust-teal-soft);
  border: 1px solid rgba(13, 148, 136, 0.25);
  border-radius: var(--radius-pill);
}

@media (min-width: 640px) {
  .trust-pill { display: inline-flex; }
}

.price-ticker {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  background: rgba(130, 71, 229, 0.08);
  border: 1px solid rgba(130, 71, 229, 0.22);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  color: #CDD7FF;
  font-variant-numeric: tabular-nums;
}

.price-ticker .price-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.price-ticker .refresh-indicator {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--text-dim);
}

/* ── Main layout ── */
.psp-main {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px clamp(14px, 4vw, 24px) 80px;
}

/* Hero */
.page-hero {
  text-align: center;
  margin-bottom: 32px;
}

.page-title {
  margin-bottom: 0;
}

.page-title h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 10px;
  color: var(--text-on-dark);
  font-size: clamp(1.65rem, 5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.15;
  text-shadow: 0 0 40px rgba(130, 71, 229, 0.25);
}

.page-title h1 img {
  display: block;
  flex-shrink: 0;
}

.page-title p {
  margin: 0 auto;
  max-width: 480px;
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-pill);
}

.hero-badge strong {
  color: #e2e8f0;
  font-weight: 600;
}

/* Workflow shell */
.workflow-shell {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(130, 71, 229, 0.14);
  border-radius: var(--radius-xl);
  padding: clamp(16px, 3vw, 28px);
  box-shadow:
    var(--shadow-lg),
    0 0 60px rgba(130, 71, 229, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* Quick-access anchor — in document flow so widget scrolls away (not sticky) */
.quick-access-anchor {
  position: relative;
  height: 0;
  z-index: 195;
  pointer-events: none;
}

/* Quick-access widget — top-right, below header when page is at scroll top */
.quick-access-widget {
  position: absolute;
  top: 10px;
  right: clamp(16px, 4vw, 32px);
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border: 1px solid rgba(130, 71, 229, 0.30);
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 18px rgba(0,0,0,0.28);
  transition: opacity 0.2s ease;
  pointer-events: auto;
}

.quick-access-widget__title {
  font-size: 0.76rem;
  font-weight: 600;
  color: #CDD7FF;
  white-space: nowrap;
}

.quick-access-widget__btn {
  font-size: 0.74rem !important;
  padding: 5px 12px !important;
  white-space: nowrap;
}

/* hidden state used by JS hide() */
.quick-access-widget[style*="display: none"],
.quick-access-widget[style*="display:none"] {
  pointer-events: none;
}

/* ── Step tracker ── */
.step-tracker-wrap {
  margin-bottom: 32px;
}

.step-tracker-label {
  margin: 0 0 14px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
}

.step-tracker {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  padding: 20px 16px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 76px;
  position: relative;
  z-index: 1;
}

.step-circle {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid rgba(148, 163, 184, 0.25);
  background: rgba(17, 24, 39, 0.9);
  color: var(--text-dim);
  font-size: 0.82rem;
  font-weight: 700;
  transition: all var(--duration-slow) var(--ease);
}

.step-item.active .step-circle {
  border-color: var(--brand-gold);
  background: linear-gradient(145deg, var(--brand-gold), var(--brand-gold-hover));
  color: #fff;
  box-shadow: 0 0 0 4px var(--brand-gold-soft), 0 4px 16px var(--brand-gold-glow);
  transform: scale(1.06);
}

.step-item.done .step-circle {
  border-color: var(--success);
  background: linear-gradient(145deg, #10b981, var(--success));
  color: #fff;
  box-shadow: 0 2px 10px rgba(5, 150, 105, 0.35);
}

.step-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
  transition: color var(--duration) var(--ease);
}

.step-item.active .step-label { color: #CDD7FF; }
.step-item.done .step-label   { color: #34d399; }

.step-connector {
  flex: 1;
  height: 2px;
  max-width: 52px;
  margin: 20px -2px 0;
  background: rgba(148, 163, 184, 0.15);
  border-radius: 1px;
  transform-origin: left center;
  transition: background var(--duration-slow) var(--ease);
}

.step-connector.done {
  background: linear-gradient(90deg, var(--success), #34d399);
}

/* ── Step cards ── */
.step-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition:
    opacity var(--duration-slow) var(--ease),
    transform var(--duration-slow) var(--ease),
    box-shadow var(--duration) var(--ease);
}

/* Current step (unlocked, not completed) */
.step-card:not(.locked):not(.completed) {
  box-shadow: var(--shadow-active);
}

.step-card:not(.locked):not(.completed) .step-card-header {
  background: linear-gradient(90deg, rgba(130, 71, 229, 0.06) 0%, var(--surface-muted) 40%);
  border-bottom-color: rgba(130, 71, 229, 0.15);
}

.step-card.locked {
  opacity: 0.38;
  pointer-events: none;
  transform: scale(0.99);
  filter: grayscale(0.2) saturate(0.7);
}

.step-card.completed {
  opacity: 0.82;
}

.step-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 24px;
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
}

.step-card-header .step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--brand-gold), var(--brand-gold-hover));
  color: #fff;
  font-size: 0.82rem;
  font-weight: 800;
  box-shadow: 0 2px 10px var(--brand-gold-glow);
}

.step-card.completed .step-card-header .step-num {
  background: linear-gradient(145deg, #10b981, var(--success));
  box-shadow: 0 2px 10px rgba(5, 150, 105, 0.3);
}

.step-card-header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.step-card-header .step-status {
  margin-left: auto;
  padding: 5px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-subtle);
  border-radius: var(--radius-pill);
  text-align: right;
  max-width: 48%;
}

.step-card:not(.locked):not(.completed) .step-status {
  color: #6B39C0;
  background: var(--brand-gold-soft);
}

.step-card.completed .step-status {
  color: var(--success);
  background: var(--success-bg);
}

.step-card-body {
  padding: 24px;
}

/* Form sections */
.form-section {
  margin-bottom: 24px;
  padding: 20px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.form-section:last-of-type {
  margin-bottom: 20px;
}

.form-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-section-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group:last-child {
  margin-bottom: 0;
}

/* Asset type selector — POL / Token / NFT */
.asset-type-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.asset-type-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 64px;
  padding: 10px 8px;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease), color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.asset-type-btn:hover {
  border-color: var(--border-strong);
  background: rgba(130, 71, 229, 0.04);
}

.asset-type-btn.active {
  color: var(--brand-gold);
  background: rgba(130, 71, 229, 0.1);
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px rgba(130, 71, 229, 0.12);
}

.asset-type-icon {
  font-size: 1.1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.asset-type-logo {
  width: 22px;
  height: 22px;
  display: block;
  object-fit: contain;
  border-radius: 4px;
}

/* Detected token / NFT info panel */
.token-info-panel {
  margin-top: 10px;
  padding: 12px 14px;
  background: rgba(130, 71, 229, 0.06);
  border: 1px solid rgba(130, 71, 229, 0.22);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.token-info-panel.error {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  color: #991b1b;
}

.token-info-title {
  margin: 0 0 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.token-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}

.token-info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.token-info-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.token-info-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
}

.token-info-value--wide {
  grid-column: 1 / -1;
}

@media (max-width: 520px) {
  .asset-type-selector {
    grid-template-columns: 1fr;
  }

  .asset-type-btn {
    min-height: 56px;
    padding: 12px 14px;
  }
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-label-center {
  text-align: center;
}

.form-control {
  width: 100%;
  padding: 13px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.form-control::placeholder { color: #94a3b8; }

.form-control:hover:not(:focus) { border-color: var(--border-strong); }

.form-control:focus {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px rgba(130, 71, 229, 0.16);
}

.form-control.is-valid   { border-color: var(--success); }
.form-control.is-invalid { border-color: var(--danger); }

.form-control-mono {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  word-break: break-all;
}

.input-group {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.input-group .form-control { flex: 1; }

/* Resolve badge — inside address input (right side) */
.input-badge-wrap {
  position: relative;
}

.input-badge-wrap .form-control {
  padding-right: 16px;
  transition: padding-right var(--duration) var(--ease);
}

.input-badge-wrap:has(.resolve-badge.success) .form-control,
.input-badge-wrap:has(.resolve-badge.error) .form-control {
  padding-right: clamp(140px, 42%, 220px);
}

.resolve-badge {
  display: none;
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  max-width: 42%;
  padding: 4px 10px;
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
  z-index: 2;
}

.resolve-badge.success {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #047857;
  background: var(--success-bg);
  border: 1px solid var(--success-border);
}

.resolve-badge.error {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #b91c1c;
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
}

/* Amount input group — prefix toggle + field */
.amount-input-group {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.amount-input-group:focus-within {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px var(--brand-gold-soft);
}

/* Left prefix — currency toggle button */
.amount-currency-prefix {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  padding: 0 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--brand-gold);
  background: rgba(130, 71, 229, 0.08);
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
  white-space: nowrap;
}

.amount-currency-prefix:hover {
  background: rgba(130, 71, 229, 0.16);
}

.currency-symbol {
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.currency-symbol--usd {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand-gold);
}

.currency-symbol--token {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand-gold);
  max-width: 42px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.currency-eth-logo {
  width: 20px;
  height: 20px;
  display: block;
  object-fit: contain;
}

.currency-arrows {
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1;
  margin-left: 3px;
}

/* Inner input — remove default border since group handles it */
.amount-input-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
}

.amount-field-inner {
  width: 100%;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  font-variant-numeric: tabular-nums;
  padding-right: 16px;
  transition: padding-right var(--duration) var(--ease);
  background: transparent;
}

.amount-field-inner:focus {
  outline: none;
  box-shadow: none !important;
}

/* Hide number input spinners */
.amount-field-inner::-webkit-outer-spin-button,
.amount-field-inner::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.amount-field-inner[type=number] { -moz-appearance: textfield; appearance: textfield; }

.input-equiv-wrap:has(.amount-usd-equiv:not(:empty)) .amount-field-inner {
  padding-right: clamp(110px, 40%, 170px);
}

.amount-usd-equiv {
  display: none;
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-gold);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  pointer-events: none;
  z-index: 2;
}

.amount-usd-equiv:not(:empty) { display: inline-block; }

/* ── Network fee panel (inline, under the Amount field) ── */
.fee-mode-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.fee-mode-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.fee-mode-card:hover {
  border-color: var(--border-strong);
}

.fee-mode-card.selected {
  background: var(--brand-gold-soft);
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px rgba(130, 71, 229, 0.12);
}

.fee-mode-card input[type="radio"] {
  width: 20px;
  height: 20px;
  margin: 0;
  flex-shrink: 0;
  accent-color: var(--brand-gold);
  cursor: pointer;
}

.fee-mode-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.fee-mode-name {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
}

.fee-mode-desc {
  font-size: 0.74rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.fee-mode-card.selected .fee-mode-desc {
  color: var(--brand-gold-hover);
}

.fee-custom-row {
  display: none;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.fee-custom-label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.fee-custom-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 0 14px;
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.fee-custom-input-wrap:focus-within {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px var(--brand-gold-soft);
}
.fee-input {
  flex: 1;
  min-width: 0;
  border: none !important;
  background: transparent !important;
  padding: 12px 0 !important;
  box-shadow: none !important;
}
.fee-input:focus {
  outline: none;
  box-shadow: none !important;
}
.fee-input::-webkit-outer-spin-button,
.fee-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.fee-input[type=number] { -moz-appearance: textfield; appearance: textfield; }
.fee-usd-equiv-panel {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-gold);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* legacy alias kept for any remaining references */
.fee-usd-equiv {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-gold);
  font-variant-numeric: tabular-nums;
}

/* Action zones */
.action-zone {
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.action-zone--primary {
  padding: 20px;
  background: linear-gradient(180deg, var(--surface-muted) 0%, var(--surface) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  border-top: none;
  margin-top: 0;
  padding-top: 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(145deg, var(--brand-gold), var(--brand-gold-hover));
  box-shadow: 0 2px 12px var(--brand-gold-glow);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--brand-gold-glow);
}

.btn-secondary {
  color: #fff;
  background: linear-gradient(145deg, #334155, #1e293b);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-1px);
  background: linear-gradient(145deg, #475569, #334155);
}

.btn-outline {
  color: var(--text-secondary);
  background: var(--surface);
  border: 1.5px solid var(--border);
}

.btn-outline:hover:not(:disabled) {
  color: var(--brand-gold-hover);
  border-color: var(--brand-gold);
  background: var(--brand-gold-soft);
}

.btn-success {
  color: #fff;
  background: linear-gradient(145deg, #10b981, var(--success));
  box-shadow: 0 4px 16px rgba(5, 150, 105, 0.35);
}

.btn-success:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(5, 150, 105, 0.4);
}

.btn-danger { color: #fff; background: var(--danger); }
.btn-full { width: 100%; }

.btn-sm {
  padding: 9px 18px;
  font-size: 0.82rem;
}

.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn-row .btn-outline { flex: 0 0 auto; }
.btn-row .btn-primary { flex: 1; min-width: 200px; }

/* Transaction summary */
.tx-summary {
  padding: 4px 0;
}

.tx-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.tx-detail-table tr {
  border-bottom: 1px solid var(--border);
}

.tx-detail-table tr:last-child { border-bottom: none; }

.tx-detail-table td {
  padding: 12px 8px;
  vertical-align: top;
}

.tx-detail-table td:first-child {
  width: 150px;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tx-detail-table td:last-child {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* Panels */
.info-panel {
  margin-bottom: 14px;
  padding: 14px 16px;
  font-size: 0.84rem;
  line-height: 1.55;
  color: #0369a1;
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  border-left: 3px solid #0ea5e9;
  border-radius: var(--radius-sm);
}

.file-picker-zone {
  margin-bottom: 16px;
  padding: 18px;
  background: var(--surface-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  text-align: center;
}

.file-picker-zone .file-selected {
  display: block;
  margin-top: 10px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--success);
}

.step-intro {
  margin: 0 0 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-intro code {
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* USB zone */
.usb-zone {
  padding: 28px 24px;
  text-align: center;
  background: var(--surface-muted);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  transition: all var(--duration) var(--ease);
}

.usb-zone.selected {
  background: var(--success-bg);
  border-color: var(--success);
  border-style: solid;
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.usb-zone.usb-detected {
  background: var(--brand-gold-soft);
  border-color: var(--brand-gold);
  border-style: solid;
}

.usb-detect-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  padding: 6px 14px;
  font-size: 0.76rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: all var(--duration) var(--ease);
}

.usb-detect-waiting  { color: var(--text-muted); background: var(--surface-subtle); }
.usb-detect-connected { color: #6B39C0; background: var(--brand-gold-soft); }
.usb-detect-removed  { color: #b91c1c; background: var(--danger-bg); }

.usb-detect-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.usb-detect-connected .usb-detect-dot {
  background: var(--brand-gold);
  animation: usbPulse 1.4s ease-in-out infinite;
}

.usb-detect-removed .usb-detect-dot { background: var(--danger); }

@keyframes usbPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(130, 71, 229, 0.55); }
  50%       { box-shadow: 0 0 0 6px rgba(130, 71, 229, 0); }
}

.usb-btn-pulse.pulsing {
  animation: btnGlow 0.9s ease-in-out infinite alternate;
}

@keyframes btnGlow {
  from { box-shadow: 0 0 0 0 rgba(130, 71, 229, 0.4); }
  to   { box-shadow: 0 0 0 10px rgba(130, 71, 229, 0); transform: translateY(-1px); }
}

.usb-icon { font-size: 2.4rem; margin-bottom: 10px; }

.usb-zone-title {
  margin: 8px 0 6px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.usb-zone-hint {
  margin: 0 0 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.usb-selected-info {
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--success);
}

.usb-filename {
  display: inline-block;
  margin-top: 10px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
}

.browser-warning {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  padding: 14px 16px;
  font-size: 0.85rem;
  color: #92400e;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-radius: var(--radius-sm);
}

/* Alerts */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  padding: 14px 16px;
  font-size: 0.875rem;
  line-height: 1.55;
  border-radius: var(--radius-sm);
}

.alert-danger  { color: #991b1b; background: var(--danger-bg);  border: 1px solid var(--danger-border); }
.alert-success { color: #047857; background: var(--success-bg); border: 1px solid var(--success-border); }
.alert-warning { color: #92400e; background: var(--warning-bg); border: 1px solid var(--warning-border); }
.alert-info    { color: #0369a1; background: var(--info-bg);    border: 1px solid var(--info-border); }

/* Instructions */
.instruction-panel {
  width: 100%;
  padding: 20px 22px;
  text-align: left;
  background: linear-gradient(135deg, #f0fdfa 0%, #ecfdf5 100%);
  border: 1px solid var(--success-border);
  border-left: 4px solid var(--success);
  border-radius: var(--radius-md);
}

/* Header title only — direct child strong */
.instruction-panel > strong {
  display: block;
  color: #047857;
  font-size: 0.95rem;
  text-align: center;
}

.instruction-panel ol {
  margin: 12px 0 0;
  padding-left: 1.5em;
  text-align: left;
  list-style-type: decimal;
  list-style-position: outside;
}

.instruction-panel li {
  margin-bottom: 8px;
  padding-left: 0;
  font-size: 0.875rem;
  color: #065f46;
  line-height: 1.55;
  text-align: left;
}

.instruction-panel li strong {
  display: inline;
  font-weight: 700;
  color: #047857;
  text-align: left;
}

.instruction-panel code {
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 4px;
}

/* Verify */
.flow-block {
  margin-bottom: 20px;
}

.flow-block-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.flow-block-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 0.68rem;
  color: #fff;
  background: var(--text-secondary);
  border-radius: 50%;
}

.verify-result {
  margin-bottom: 18px;
  padding: 22px;
  background: var(--surface-muted);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-md);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.verify-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.verify-ok {
  flex: 1;
  min-width: 200px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--success);
}

.verify-ready-badge {
  padding: 7px 14px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
  background: linear-gradient(145deg, #047857, var(--success));
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 10px rgba(5, 150, 105, 0.3);
}

.verify-summary-card {
  margin-bottom: 14px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.verify-summary-title {
  margin-bottom: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.verify-tech-panel {
  padding: 14px 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.verify-tech-title {
  margin-bottom: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Broadcast */
.broadcast-zone {
  padding: 20px;
  background: linear-gradient(180deg, var(--surface-muted) 0%, #fff 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.broadcast-result {
  padding: 28px;
  text-align: center;
  border-radius: var(--radius-md);
}

.broadcast-result.success {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
}

.broadcast-result.error {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
}

.addr-display {
  font-family: var(--font-mono);
  cursor: help;
}

.tx-detail-table td .addr-display,
.verify-summary-card .addr-display {
  white-space: nowrap;
}

.txid-display {
  margin: 14px 0;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  word-break: break-all;
  cursor: help;
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.broadcast-provider-hint {
  margin-bottom: 14px;
  padding: 10px 14px;
  font-size: 0.76rem;
  color: var(--text-muted);
  background: var(--surface-subtle);
  border-radius: var(--radius-xs);
  text-align: center;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-dark {
  border-color: rgba(15, 23, 42, 0.12);
  border-top-color: var(--text-primary);
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Misc */
.section-divider {
  margin: 24px 0;
  border: none;
  border-top: 1px solid var(--border);
}

.back-nav { margin-bottom: 18px; }

.advanced-link {
  margin-top: 40px;
  padding-bottom: 20px;
  text-align: center;
}

.advanced-link a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px dashed rgba(148, 163, 184, 0.4);
  transition: color var(--duration) var(--ease);
}

.advanced-link a:hover { color: #CDD7FF; }

.psp-footer {
  position: relative;
  z-index: 1;
  padding: 22px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  text-align: center;
  background: rgba(10, 6, 20, 0.88);
  border-top: 1px solid rgba(130, 71, 229, 0.12);
}

.psp-footer a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.psp-footer a:hover { color: var(--polygon-accent-light); }

/* Utilities — JS uses d-none */
.d-none { display: none !important; }
.mt-2   { margin-top: 8px; }
.mt-3   { margin-top: 16px; }
.mb-2   { margin-bottom: 8px; }
.mb-3   { margin-bottom: 16px; }
.text-center { text-align: center; }
.text-muted  { color: var(--text-muted) !important; font-weight: 400; }
.fw-bold     { font-weight: 700; }

/* ── Step transition animations ── */
.workflow-progress {
  height: 4px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.workflow-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-gold) 0%, #C4A8FF 50%, var(--success) 100%);
  border-radius: var(--radius-pill);
  transition: width 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 12px var(--brand-gold-glow);
}

.step-tracker-wrap.tracker-wrap-highlight {
  animation: trackerWrapGlow 0.75s ease;
}

@keyframes trackerWrapGlow {
  0%   { box-shadow: none; }
  40%  { box-shadow: 0 0 0 2px rgba(130, 71, 229, 0.2); border-radius: var(--radius-md); }
  100% { box-shadow: none; }
}

.step-tracker-wrap.workflow-complete .step-item .step-circle {
  animation: workflowCompletePop 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.step-tracker-wrap.workflow-complete .step-item:nth-child(1) .step-circle { animation-delay: 0s; }
.step-tracker-wrap.workflow-complete .step-item:nth-child(3) .step-circle { animation-delay: 0.08s; }
.step-tracker-wrap.workflow-complete .step-item:nth-child(5) .step-circle { animation-delay: 0.16s; }
.step-tracker-wrap.workflow-complete .step-item:nth-child(7) .step-circle { animation-delay: 0.24s; }

@keyframes workflowCompletePop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.15); box-shadow: 0 0 0 6px rgba(5, 150, 105, 0.25); }
  100% { transform: scale(1); }
}

/* Card slides in when advancing to next step */
@keyframes stepCardEnter {
  from {
    opacity: 0;
    transform: translateY(32px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.step-card.step-enter {
  animation: stepCardEnter 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.step-card.step-enter .step-card-body > *:nth-child(1) { animation: stepContentFade 0.5s 0.15s ease both; }
.step-card.step-enter .step-card-body > *:nth-child(2) { animation: stepContentFade 0.5s 0.22s ease both; }
.step-card.step-enter .step-card-body > *:nth-child(3) { animation: stepContentFade 0.5s 0.29s ease both; }
.step-card.step-enter .step-card-body > *:nth-child(4) { animation: stepContentFade 0.5s 0.36s ease both; }
.step-card.step-enter .step-card-body > *:nth-child(5) { animation: stepContentFade 0.5s 0.43s ease both; }

@keyframes stepContentFade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Completed card flash */
@keyframes stepCompleteFlash {
  0%   { box-shadow: var(--shadow-active); }
  35%  { box-shadow: 0 0 0 4px rgba(5, 150, 105, 0.28), var(--shadow-md); transform: scale(1); }
  100% { box-shadow: var(--shadow-card); transform: scale(0.995); }
}

.step-card.step-complete-flash {
  animation: stepCompleteFlash 0.75s ease forwards;
}

/* Tracker circle checkmark pop */
@keyframes circlePop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.22); }
  100% { transform: scale(1); }
}

.step-circle.circle-pop {
  animation: circlePop 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Connector line grows when step completes */
.step-connector.connector-animate {
  animation: connectorGrow 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes connectorGrow {
  from { transform: scaleX(0); opacity: 0.5; }
  to   { transform: scaleX(1); opacity: 1; }
}

/* Active step tracker pulse */
.step-item.tracker-enter .step-circle {
  animation: trackerActivePulse 0.7s ease 2;
}

@keyframes trackerActivePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(130, 71, 229, 0.45); }
  50%       { box-shadow: 0 0 0 10px rgba(130, 71, 229, 0); }
}

/* Locked cards subtle fade when left behind */
.step-card.locked {
  transition:
    opacity var(--duration-slow) var(--ease),
    transform var(--duration-slow) var(--ease),
    filter var(--duration-slow) var(--ease);
}

/* Completed cards settle animation */
.step-card.completed {
  transition: opacity var(--duration-slow) var(--ease), transform 0.4s var(--ease);
}

.step-card.just-completed {
  animation: cardSettleComplete 0.5s ease forwards;
}

@keyframes cardSettleComplete {
  from { transform: scale(1); }
  to   { transform: scale(0.995); }
}

/* ── Responsive ── */

/* Tablet */
@media (max-width: 900px) {
  .psp-header {
    padding: 12px 16px;
  }

  .header-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .price-ticker {
    flex: 1 1 auto;
    min-width: 0;
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  .step-card-header .step-status {
    max-width: 100%;
  }

  .tx-detail-table td:first-child {
    width: 120px;
  }
}

/* Mobile */
@media (max-width: 640px) {
  html, body {
    overflow-x: hidden;
  }

  .psp-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto;
    gap: 6px 6px;
    padding: 10px 12px;
    align-items: center;
  }

  .psp-header .brand {
    grid-column: 1;
    grid-row: 1;
    align-items: flex-start;
    align-self: center;
    min-width: 0;
    gap: 7px;
  }

  .psp-header .brand img {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    margin-top: 1px;
  }

  .psp-header .brand > div {
    min-width: 0;
    overflow: visible;
  }

  .psp-header .brand-title {
    font-size: 0.78rem;
    line-height: 1.2;
    white-space: normal;
  }

  .psp-header .brand-sub {
    display: block;
    margin-top: 2px;
    font-size: 0.58rem;
    line-height: 1.3;
    white-space: normal;
  }

  .header-meta {
    display: contents;
  }

  .price-ticker {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    align-self: center;
    display: grid;
    grid-template-columns: auto auto;
    justify-content: end;
    align-content: center;
    gap: 1px 4px;
    width: auto;
    padding: 4px 6px;
    font-size: 0.66rem;
    min-width: 0;
    text-align: right;
  }

  .price-ticker .price-label {
    grid-column: 1;
    grid-row: 1;
    align-self: center;
    font-size: 0.58rem;
  }

  .price-ticker #ethPrice {
    grid-column: 2;
    grid-row: 1;
    white-space: nowrap;
    font-size: 0.66rem;
  }

  .price-ticker .refresh-indicator {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: end;
    font-size: 0.52rem;
    white-space: nowrap;
  }

  /* Stack quick-access above hero — no overlap with title on narrow screens */
  .quick-access-anchor {
    height: auto;
    padding: 10px 14px 0;
    pointer-events: auto;
  }

  .quick-access-widget {
    position: static;
    right: auto;
    width: 100%;
    align-items: center;
    padding: 10px 14px;
    box-sizing: border-box;
  }

  .quick-access-widget__title {
    font-size: 0.72rem;
    white-space: normal;
    text-align: center;
  }

  .quick-access-widget__btn {
    font-size: 0.72rem !important;
    padding: 6px 14px !important;
    width: 100%;
    max-width: 260px;
    text-align: center;
  }

  /* Network fee cards — stacked, tighter spacing on small screens */
  .fee-mode-group {
    grid-template-columns: 1fr;
  }

  .fee-mode-card {
    padding: 12px;
    gap: 10px;
  }

  .fee-mode-name {
    font-size: 0.8rem;
  }

  .fee-mode-desc {
    font-size: 0.68rem;
  }

  .fee-custom-input-wrap {
    padding: 0 12px;
    gap: 8px;
  }

  .fee-usd-equiv-panel {
    font-size: 0.72rem;
  }

  .psp-main {
    padding: 12px 12px 48px;
  }

  .page-hero {
    margin-bottom: 20px;
  }

  .page-title h1 {
    font-size: 1.45rem;
  }

  .page-title p {
    font-size: 0.85rem;
    padding: 0 4px;
  }

  .hero-badges {
    gap: 6px;
    margin-top: 14px;
  }

  .hero-badge {
    font-size: 0.65rem;
    padding: 5px 10px;
  }

  .workflow-shell {
    padding: 12px;
    border-radius: var(--radius-lg);
  }

  .step-tracker-wrap {
    margin-bottom: 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .step-tracker-wrap::-webkit-scrollbar {
    display: none;
  }

  .step-tracker {
    justify-content: center;
    padding: 12px 10px;
    gap: 0;
  }

  .step-item {
    min-width: 52px;
  }

  .step-circle {
    width: 32px;
    height: 32px;
    font-size: 0.7rem;
  }

  .step-label {
    font-size: 0.5rem;
    letter-spacing: 0.06em;
  }

  .step-connector {
    max-width: 18px;
    margin-top: 14px;
  }

  .step-card-header {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 10px 12px;
  }

  .step-card-header .step-num {
    width: 24px;
    height: 24px;
    font-size: 0.66rem;
    flex-shrink: 0;
  }

  .step-card-header h2 {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 0.74rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .step-card-header .step-status {
    flex-shrink: 0;
    width: auto;
    max-width: none;
    margin: 0;
    text-align: left;
    font-size: 0.6rem;
    padding: 3px 8px;
    white-space: nowrap;
  }

  .step-card-body {
    padding: 14px;
  }

  .form-section {
    padding: 14px;
    margin-bottom: 16px;
  }

  .form-control {
    padding: 11px 12px;
    font-size: 16px; /* prevents iOS zoom on focus */
  }

  .form-control-mono {
    font-size: 0.78rem;
  }

  .input-badge-wrap:has(.resolve-badge.success) .form-control,
  .input-badge-wrap:has(.resolve-badge.error) .form-control {
    padding-right: 12px;
    padding-bottom: 28px;
  }

  .resolve-badge {
    top: auto;
    bottom: 8px;
    right: 8px;
    left: 8px;
    transform: none;
    max-width: none;
    width: auto;
    justify-content: center;
    font-size: 0.65rem;
  }

  .amount-currency-prefix {
    min-width: 50px;
    padding: 0 10px;
  }

  .input-equiv-wrap:has(.amount-usd-equiv:not(:empty)) .amount-field-inner {
    padding-right: 12px;
    padding-bottom: 22px;
  }

  .amount-usd-equiv:not(:empty) {
    top: auto;
    bottom: 8px;
    right: 8px;
    left: 8px;
    transform: none;
    text-align: right;
    font-size: 0.68rem;
  }

  .btn {
    padding: 12px 18px;
    font-size: 0.85rem;
    white-space: normal;
    text-align: center;
  }

  .btn-sm {
    padding: 8px 14px;
    font-size: 0.78rem;
  }

  .btn-row {
    flex-direction: column;
  }

  .btn-row .btn-primary {
    min-width: 0;
    width: 100%;
  }

  .btn-row .btn-outline {
    width: 100%;
  }

  .action-zone--primary {
    padding: 14px;
  }

  .usb-zone {
    padding: 18px 14px;
  }

  .usb-zone-hint {
    font-size: 0.75rem;
  }

  .file-picker-zone {
    padding: 14px;
  }

  .file-picker-zone .btn,
  .usb-zone .btn {
    width: 100%;
  }

  .instruction-panel {
    padding: 16px 18px;
  }

  .instruction-panel li {
    font-size: 0.82rem;
  }

  .tx-detail-table,
  .tx-detail-table tbody,
  .tx-detail-table tr,
  .tx-detail-table td {
    display: block;
    width: 100%;
  }

  .tx-detail-table tr {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }

  .tx-detail-table tr:last-child {
    border-bottom: none;
  }

  .tx-detail-table td {
    padding: 2px 0;
  }

  .tx-detail-table td:first-child {
    width: 100%;
    padding-bottom: 4px;
    font-size: 0.72rem;
  }

  .tx-detail-table td:last-child {
    font-size: 0.76rem;
    padding-bottom: 8px;
  }

  .verify-result {
    padding: 14px;
  }

  .verify-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .verify-ok {
    min-width: 0;
    font-size: 0.85rem;
  }

  .verify-ready-badge {
    font-size: 0.62rem;
    padding: 6px 10px;
    white-space: normal;
    text-align: center;
  }

  .verify-summary-card {
    padding: 14px;
  }

  .broadcast-zone {
    padding: 14px;
  }

  .broadcast-result {
    padding: 18px 14px;
  }

  .txid-display {
    font-size: 0.7rem;
    padding: 10px 12px;
  }

  .psp-footer {
    padding: 16px 12px;
    font-size: 0.72rem;
    line-height: 1.6;
    text-align: center;
  }
}

/* Small phones */
@media (max-width: 380px) {
  .psp-header {
    gap: 4px 5px;
    padding: 8px 10px;
  }

  .psp-header .brand img {
    width: 26px;
    height: 26px;
  }

  .psp-header .brand-title {
    font-size: 0.72rem;
  }

  .psp-header .brand-sub {
    font-size: 0.54rem;
  }

  .price-ticker {
    padding: 3px 4px;
    gap: 1px 3px;
  }

  .price-ticker .price-label {
    font-size: 0.52rem;
  }

  .price-ticker #ethPrice {
    font-size: 0.6rem;
  }

  .price-ticker .refresh-indicator {
    font-size: 0.48rem;
  }

  .quick-access-widget {
    padding: 8px 12px;
  }

  .quick-access-widget__title {
    font-size: 0.65rem;
  }

  .step-item {
    min-width: 46px;
  }

  .step-circle {
    width: 28px;
    height: 28px;
    font-size: 0.65rem;
  }

  .step-connector {
    max-width: 12px;
    margin-top: 12px;
  }

  .hero-badge {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}