/*
 * style.css — swap.fistbump.org
 *
 * Layered on top of fistbump.css. Uses the exact same structural idioms as
 * fistbump.org (header pattern, hero grid/glow, section rhythm, container
 * width, gradient hero title, glass detail cards) so the swap site reads
 * as part of the same product family.
 */

body { overflow-x: clip; }
body.nav-open { overflow: hidden; }

.container { max-width: 1000px; margin: 0 auto; padding: 0 var(--fb-space-lg); }

/* ── Header (matches web/ and docs/) ── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(9, 9, 11, 0.7);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(87, 199, 237, 0.08);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--fb-text);
}
.logo:hover { text-decoration: none; }
.logo-icon { border-radius: var(--fb-radius); }
.logo-text { font-size: var(--fb-text-xl); font-weight: 600; letter-spacing: -0.02em; }

.nav { display: flex; gap: var(--fb-space-lg); }
.nav a {
  font-size: var(--fb-text-base);
  color: var(--fb-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.nav a:hover { color: var(--fb-text); text-decoration: none; }

.menu-toggle {
  display: none;
  background: none; border: none;
  color: var(--fb-text-muted);
  padding: var(--fb-space-sm);
  cursor: pointer;
}
.menu-toggle:hover { color: var(--fb-text); }

.mobile-nav {
  display: none; flex-direction: column;
  position: fixed; top: 56px; left: 0; right: 0; bottom: 0;
  z-index: 101;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(87, 199, 237, 0.08);
  padding: var(--fb-space-md) var(--fb-space-lg);
  gap: var(--fb-space-sm);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 0;
  font-size: var(--fb-text-lg);
  color: var(--fb-text-muted);
}
.mobile-nav a:hover { color: var(--fb-text); text-decoration: none; }

/* ── Hero (matches web/ exactly) ── */
.hero {
  position: relative;
  padding: 140px 0 100px;
  text-align: center;
  overflow: hidden;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(87, 199, 237, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 199, 237, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}
.hero-glow {
  position: absolute; top: -300px; left: 50%; transform: translateX(-60%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(87, 199, 237, 0.12) 0%, transparent 60%);
  pointer-events: none;
}
.hero-glow-2 {
  position: absolute; top: -200px; left: 50%; transform: translateX(10%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(87, 199, 237, 0.06) 0%, transparent 60%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  font-size: var(--fb-text-xs); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--fb-accent);
  border: 1px solid var(--fb-accent-dim);
  border-radius: var(--fb-radius-pill);
  padding: 5px 16px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: 64px; font-weight: 700; letter-spacing: -0.04em;
  line-height: 1.05; margin-bottom: 24px;
  background: linear-gradient(135deg, #fafafa 0%, #fafafa 40%, #57c7ed 70%, #3ab4de 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 8s ease infinite;
}
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-sub {
  font-size: 17px; color: var(--fb-text-muted);
  max-width: 580px; margin: 0 auto 40px;
  line-height: 1.7;
}
.hero-req {
  font-size: var(--fb-text-sm);
  color: var(--fb-text-dim);
  margin: -24px auto 32px;
}
.hero-req a { color: var(--fb-accent); }

/* ── Role switch (tab-style segmented control, glass) ── */
.role-switch {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 5px;
  background: rgba(24, 24, 27, 0.6);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(87, 199, 237, 0.08);
  border-radius: calc(var(--fb-radius) + 4px);
}
.role-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--fb-radius);
  padding: 12px 22px;
  font-family: var(--fb-font-sans);
  cursor: pointer;
  color: var(--fb-text-muted);
  transition: all 0.15s;
  display: flex; flex-direction: column;
  align-items: flex-start; gap: 2px;
  min-width: 200px;
  text-align: left;
}
.role-btn:hover { color: var(--fb-text); }
.role-btn[aria-selected="true"] {
  background: var(--fb-bg-card);
  border-color: rgba(87, 199, 237, 0.2);
  color: var(--fb-text);
}
.role-title { font-weight: 600; font-size: var(--fb-text-sm); }
.role-sub { color: var(--fb-text-dim); font-size: var(--fb-text-xs); }

/* ── Section rhythm ── */
.flow { padding: 80px 0; border-top: 1px solid var(--fb-border); }
.flow.hidden { display: none; }

.section-title {
  font-size: 32px; font-weight: 700; letter-spacing: -0.03em;
  margin-bottom: 48px; text-align: center;
}

/* ── Steps ── */
.steps {
  list-style: none;
  padding: 0; margin: 0;
  position: relative;
}
.steps::before {
  content: "";
  position: absolute;
  left: 17px; top: 36px; bottom: 36px;
  width: 1px;
  background: var(--fb-border);
}
.step { position: relative; padding: 0 0 28px 58px; }
.step:last-child { padding-bottom: 0; }

.step-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: var(--fb-space-base);
}
.step-number {
  position: absolute;
  left: 0; top: 0;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--fb-bg-card);
  border: 2px solid var(--fb-border-light);
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--fb-text-sm);
  color: var(--fb-text);
  font-variant-numeric: tabular-nums;
}
.step-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
}
.step.complete .step-number {
  background: var(--fb-accent);
  color: var(--fb-bg);
  border-color: var(--fb-accent);
  box-shadow: 0 0 12px rgba(87, 199, 237, 0.2);
}
.step.active .step-number {
  background: var(--fb-accent);
  color: var(--fb-bg);
  border-color: var(--fb-accent);
  box-shadow: 0 0 0 4px rgba(87, 199, 237, 0.2), 0 0 12px rgba(87, 199, 237, 0.25);
}

.step-body {
  background: rgba(24, 24, 27, 0.6);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(87, 199, 237, 0.08);
  border-radius: var(--fb-radius-lg);
  padding: 24px;
}
.step-hint {
  color: var(--fb-text-muted);
  margin: 0 0 var(--fb-space-base);
  font-size: var(--fb-text-base);
  line-height: 1.7;
}
.step-hint em {
  font-style: normal;
  background: var(--fb-bg-hover);
  padding: 1px 6px;
  border-radius: var(--fb-radius-sm);
  color: var(--fb-text);
  font-size: 13px;
  font-family: var(--fb-font-mono);
}

/* ── Wallets ── */
.wallet-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fb-space-md);
}
.wallet {
  display: flex; flex-direction: column; gap: var(--fb-space-sm);
  padding: var(--fb-space-base);
  background: var(--fb-bg-input);
  border: 1px solid var(--fb-border);
  border-radius: var(--fb-radius);
}
.wallet-label {
  font-size: var(--fb-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fb-text-dim);
  font-weight: 600;
}
.wallet .btn { width: 100%; }
.wallet-status {
  font-family: var(--fb-font-mono);
  font-size: var(--fb-text-xs);
  color: var(--fb-text-dim);
  word-break: break-all;
  min-height: 16px;
  line-height: 1.4;
}
.wallet-status.connected { color: var(--fb-green); }
.wallet-status.error { color: var(--fb-red); }

/* ── Fields / inputs (input height comes from fistbump.css) ── */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--fb-space-base);
  margin-bottom: var(--fb-space-md);
}
.field-row label {
  display: flex; flex-direction: column; gap: 6px;
}
.field-label {
  font-size: var(--fb-text-sm);
  color: var(--fb-text-muted);
  font-weight: 500;
}
.input-with-unit { position: relative; display: flex; align-items: center; }
.input-with-unit input {
  width: 100%;
  padding-right: 58px;
  font-family: var(--fb-font-mono);
}
.input-with-unit .unit {
  position: absolute; right: 12px;
  font-size: var(--fb-text-xs);
  color: var(--fb-text-dim);
  pointer-events: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.field-note {
  font-size: var(--fb-text-sm);
  color: var(--fb-text-dim);
  margin: var(--fb-space-sm) 0 var(--fb-space-base);
  line-height: 1.6;
}
.field-note:empty { display: none; }
.field-note.ok { color: var(--fb-green); }
.field-note.warn { color: var(--fb-yellow); }
.field-note.error { color: var(--fb-red); }

/* ── Button overrides for :disabled (fistbump.css has .disabled class) ── */
.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: auto;
}
.btn:disabled:hover {
  border-color: var(--fb-border);
  color: var(--fb-text-muted);
  background: var(--fb-bg-card);
}
.btn.primary:disabled:hover { background: var(--fb-accent); border-color: var(--fb-accent); color: #fff; }

/* ── Blob panels ── */
.blob-panel {
  display: flex; flex-direction: column;
  gap: var(--fb-space-sm);
  margin-bottom: 6px;
}
.blob {
  width: 100%;
  padding: 12px;
  font-family: var(--fb-font-mono);
  font-size: var(--fb-text-sm);
  line-height: 1.55;
  word-break: break-all;
  height: auto;
  resize: vertical;
}
.blob[readonly] {
  background: var(--fb-bg-raised);
  color: var(--fb-text-muted);
}
.blob-panel > .btn { align-self: flex-end; }

.reveal-details {
  margin-top: var(--fb-space-base);
  padding: var(--fb-space-sm) 0 0;
  border-top: 1px dashed var(--fb-border);
}
.reveal-details summary {
  cursor: pointer;
  font-size: var(--fb-text-sm);
  color: var(--fb-text-dim);
  padding: var(--fb-space-xs) 0;
  list-style: none;
}
.reveal-details summary::-webkit-details-marker { display: none; }
.reveal-details summary::before {
  content: '▸';
  display: inline-block;
  margin-right: 6px;
  transition: transform 0.15s;
  color: var(--fb-text-dim);
}
.reveal-details[open] summary::before { transform: rotate(90deg); }

.reveal-details pre {
  margin: var(--fb-space-sm) 0 0;
}

/* ── Detail cards (matches web/ .detail-card) ── */
.detail-card {
  background: rgba(24, 24, 27, 0.6);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(87, 199, 237, 0.08);
  border-radius: var(--fb-radius-lg);
  overflow: hidden;
  margin-bottom: var(--fb-space-base);
}
.detail-card:empty,
.detail-card.hidden { display: none; }
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--fb-space-base);
  padding: 13px 20px;
  border-bottom: 1px solid var(--fb-border);
  font-size: var(--fb-text-sm);
}
.detail-row:last-child { border-bottom: none; }
.detail-label { color: var(--fb-text-dim); flex-shrink: 0; }
.detail-value {
  font-weight: 500;
  font-family: var(--fb-font-mono);
  word-break: break-all;
  text-align: right;
  flex: 1;
  min-width: 0;
}
.detail-value.accent { color: var(--fb-accent); font-weight: 600; }
.detail-value code {
  background: none;
  padding: 0;
  color: var(--fb-accent);
  font-size: inherit;
}

/* ── "How it works" section ── */
.how {
  padding: 80px 0;
  border-top: 1px solid var(--fb-border);
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--fb-space-base);
}
.how-card {
  padding: 28px;
  background: rgba(24, 24, 27, 0.6);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(87, 199, 237, 0.08);
  border-radius: var(--fb-radius-lg);
}
.how-step {
  display: inline-block;
  padding: 3px 10px;
  background: var(--fb-accent-bg);
  color: var(--fb-accent);
  border: 1px solid var(--fb-accent-dim);
  border-radius: var(--fb-radius-sm);
  font-family: var(--fb-font-mono);
  font-size: var(--fb-text-xs);
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-bottom: 14px;
}
.how-card h3 {
  font-size: var(--fb-text-xl);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.how-card p {
  color: var(--fb-text-muted);
  font-size: var(--fb-text-sm);
  margin: 0;
  line-height: 1.7;
}
.how-card em {
  font-style: normal;
  background: var(--fb-bg-hover);
  padding: 1px 6px;
  border-radius: var(--fb-radius-sm);
  font-size: 12px;
  color: var(--fb-text);
  font-family: var(--fb-font-mono);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--fb-border);
  padding: 32px 0 56px;
}
.footer-inner {
  text-align: center;
  color: var(--fb-text-dim);
  font-size: var(--fb-text-sm);
  line-height: 1.7;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav { display: none; }
  .menu-toggle { display: block; }
}

@media (max-width: 640px) {
  .hero { padding: 80px 0 60px; }
  .hero-title { font-size: 40px; }
  .hero-sub { font-size: var(--fb-text-base); }
  .flow, .how { padding: 60px 0; }
  .section-title { font-size: 26px; margin-bottom: 32px; }
  .step-title { font-size: var(--fb-text-lg); }
  .step { padding-left: 48px; }
  .step-number { width: 30px; height: 30px; }
  .steps::before { left: 15px; }
  .step-body { padding: 18px; }
  .role-switch { grid-template-columns: 1fr; width: 100%; }
  .role-btn { min-width: 0; }
  .wallet-row { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .detail-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 10px 16px;
  }
  .detail-value { text-align: left; }
}

@media (max-width: 400px) {
  .hero { padding: 60px 0 40px; }
  .hero-title { font-size: 34px; }
}

/* ── Toast (bottom-right, auto-dismiss) ── */
.toast-stack {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 200;
  display: flex; flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
  max-width: min(90vw, 420px);
}
.toast {
  background: rgba(24, 24, 27, 0.92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(87, 199, 237, 0.2);
  border-radius: var(--fb-radius);
  padding: 10px 14px;
  font-size: var(--fb-text-sm);
  color: var(--fb-text);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  animation: toast-in 0.18s ease-out;
}
.toast.ok { border-color: rgba(74, 222, 128, 0.35); }
.toast.error { border-color: rgba(239, 68, 68, 0.35); }
.toast.fade-out { animation: toast-out 0.22s ease-in forwards; }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(6px); }
}

/* ── Modal (confirm dialog) ── */
.modal-backdrop {
  position: fixed; inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  display: grid; place-items: center;
  padding: 16px;
  animation: fade-in 0.12s ease-out;
}
.modal {
  background: var(--fb-bg-card);
  border: 1px solid rgba(87, 199, 237, 0.2);
  border-radius: var(--fb-radius-lg);
  padding: 24px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
}
.modal h3 {
  margin: 0 0 12px;
  font-size: var(--fb-text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.modal p {
  margin: 0 0 18px;
  color: var(--fb-text-muted);
  font-size: var(--fb-text-sm);
  line-height: 1.6;
}
.modal-actions {
  display: flex; justify-content: flex-end;
  gap: var(--fb-space-sm);
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ── Role switch: "in progress" indicator on the other tab ── */
.role-btn .role-sub .resume-pill {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  background: var(--fb-accent-bg);
  color: var(--fb-accent);
  border: 1px solid var(--fb-accent-dim);
  border-radius: var(--fb-radius-sm);
  font-family: var(--fb-font-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Resume banner (at top of a flow when state was restored) ── */
.resume-banner {
  border: 1px solid var(--fb-accent-dim);
  background: var(--fb-accent-bg);
  padding: 12px 14px;
  border-radius: var(--fb-radius);
  margin-bottom: 16px;
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap;
  font-size: var(--fb-text-sm);
}
.resume-banner .dismiss {
  background: transparent; border: none;
  color: var(--fb-text-dim); cursor: pointer;
  font-size: var(--fb-text-sm); padding: 4px 8px;
}
.resume-banner .dismiss:hover { color: var(--fb-red); }

/* ── Preimage hand-off panel (survives claim + reload) ── */
.preimage-panel {
  margin-top: 12px;
  padding: 14px;
  background: var(--fb-bg-raised);
  border: 1px solid var(--fb-border);
  border-radius: var(--fb-radius);
}
.preimage-panel .label {
  font-size: var(--fb-text-xs);
  color: var(--fb-text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.preimage-panel code {
  display: block;
  word-break: break-all;
  user-select: all;
  font-size: var(--fb-text-sm);
  margin-bottom: 8px;
}

/* ── Inline jargon tooltips ── */
/*
 * Wrap domain terms in <abbr title="…"> so the definition appears in the
 * native browser tooltip on hover + long-press (mobile). The subtle dotted
 * underline signals "there's more here" without pulling attention from
 * the main copy. `help` cursor reinforces the affordance.
 */
abbr[title] {
  text-decoration: underline dotted var(--fb-accent-dim);
  text-underline-offset: 3px;
  cursor: help;
}
abbr[title]:hover { text-decoration-color: var(--fb-accent); }

/* ── Waiting-on-counterparty panel ── */
.waiting-panel {
  margin-top: var(--fb-space-base);
  padding: 12px 14px;
  background: rgba(87, 199, 237, 0.04);
  border: 1px solid var(--fb-accent-dim);
  border-radius: var(--fb-radius);
  color: var(--fb-text-muted);
  font-size: var(--fb-text-sm);
  line-height: 1.6;
  display: flex; align-items: flex-start; gap: 10px;
}
.waiting-panel::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--fb-accent);
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
  animation: waiting-pulse 1.6s ease-in-out infinite;
}
@keyframes waiting-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.4; transform: scale(0.7); }
}
.waiting-panel strong { color: var(--fb-text); font-weight: 600; }

/* ── QR panel (reveal via button) ── */
.qr-panel {
  margin-top: 12px;
  padding: 16px;
  background: #fff;
  border-radius: var(--fb-radius);
  display: inline-block;
  line-height: 0; /* prevent baseline gap under inline img */
}
.qr-panel img, .qr-panel canvas {
  display: block;
  width: 220px; height: 220px;
}
.qr-wrap {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; margin-top: 8px;
}
.qr-wrap .caption {
  font-size: var(--fb-text-xs);
  color: var(--fb-text-dim);
  font-family: var(--fb-font-mono);
  letter-spacing: 0.03em;
}

/* ── Confirmation-progress line ── */
.conf-line {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--fb-font-mono);
  font-size: var(--fb-text-xs);
  color: var(--fb-text-dim);
  margin: 6px 0;
}
.conf-line .bar {
  flex: 1; max-width: 160px;
  height: 4px;
  background: var(--fb-border);
  border-radius: 2px; overflow: hidden;
}
.conf-line .bar .fill {
  height: 100%;
  background: var(--fb-accent);
  transition: width 0.3s ease;
}
.conf-line.ready { color: var(--fb-green); }
.conf-line.ready .bar .fill { background: var(--fb-green); }