*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0c;
  --surface: #131318;
  --surface-2: #1a1a22;
  --border: #2a2a35;
  --border-active: #4a4a5a;
  --text: #e8e8ed;
  --text-dim: #8888a0;
  --accent: #6ee7b7;
  --accent-dim: #2d6a54;
  --accent-glow: rgba(110, 231, 183, 0.12);
  --danger: #f87171;
  --warning: #fbbf24;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(110,231,183,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(99,102,241,0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

#root {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes ripple {
  0% { box-shadow: 0 0 0 0 rgba(110,231,183,0.3); }
  70% { box-shadow: 0 0 0 14px rgba(110,231,183,0); }
  100% { box-shadow: 0 0 0 0 rgba(110,231,183,0); }
}

@keyframes scaleIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.app-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 20px 80px;
  min-height: 100vh;
}

.hero-block {
  text-align: center;
  margin-bottom: 36px;
  animation: fadeUp 0.45s ease;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 12px;
}

.hero-copy {
  max-width: 620px;
  margin: 0 auto;
  color: var(--text-dim);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
}

.mode-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 620px;
  margin: 0 auto 24px;
  animation: fadeUp 0.35s ease;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
  max-width: 720px;
  margin: 0 auto 30px;
}

.round-action {
  aspect-ratio: 1 / 1;
  width: 100%;
  border-radius: 50%;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 30% 25%, rgba(110,231,183,0.1), transparent 38%),
    radial-gradient(circle at 70% 75%, rgba(99,102,241,0.1), transparent 34%),
    var(--surface);
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 26px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  box-shadow: 0 24px 70px rgba(0,0,0,0.28);
}

.round-action:hover {
  transform: translateY(-3px);
  border-color: var(--border-active);
}

.round-action__icon {
  width: 86px;
  height: 86px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--accent);
}

.round-action__label {
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.round-action__copy {
  max-width: 240px;
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.5;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 24px;
}

.send-ready-shell {
  max-width: 620px;
  margin: 0 auto 24px;
  display: grid;
  gap: 20px;
}

.surface-card {
  background: rgba(19, 19, 24, 0.94);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.24);
}

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.panel-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.9rem;
  line-height: 1.05;
  font-weight: 600;
  margin-bottom: 10px;
}

.card-copy {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.6;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 22px;
  padding: 46px 28px;
  text-align: center;
  background: rgba(255,255,255,0.01);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, opacity 0.2s ease;
}

.dropzone:hover {
  border-color: var(--border-active);
  background: var(--surface-2);
}

.dropzone.is-dragging {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.dropzone.is-busy {
  opacity: 0.7;
  cursor: wait;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.ghost-button,
.primary-button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.ghost-button {
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
}

.ghost-button:hover:not(:disabled),
.ghost-button.is-active {
  border-color: var(--border-active);
  color: var(--accent);
}

.primary-button {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #0a0a0c;
  font-size: 14px;
  font-weight: 600;
}

.primary-button:hover:not(:disabled) {
  background: #5dd4a6;
}

.icon-button {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
}

.icon-button:hover:not(:disabled) {
  border-color: var(--danger);
  color: var(--danger);
}

.prepared-summary,
.status-box {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.helper-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 320px;
}

.qr-card {
  display: flex;
  flex-direction: column;
}

.qr-card__actions {
  align-items: stretch;
}

.qr-preview {
  min-height: 268px;
  margin-bottom: 16px;
  border-radius: 20px;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.qr-id-chip {
  flex: 1 1 220px;
  min-width: 0;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
}

.qr-id-chip__label {
  color: var(--text-dim);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.qr-id-chip__value {
  min-width: 0;
  overflow-wrap: anywhere;
  white-space: normal;
  line-height: 1.4;
}

.mono-textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  line-height: 1.7;
  resize: vertical;
}

.mono-textarea:focus {
  outline: none;
  border-color: var(--accent-dim);
}

.scanner-preview {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: #050507;
  border: 1px solid var(--border);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.manual-connect-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.manual-connect-input {
  flex: 1 1 220px;
  min-width: 0;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
}

.manual-connect-input::placeholder {
  color: var(--text-dim);
}

.manual-connect-input:focus {
  outline: none;
  border-color: var(--accent-dim);
}

.scanner-frame {
  position: absolute;
  inset: 18% 18%;
  border: 2px solid rgba(110,231,183,0.9);
  border-radius: 20px;
  box-shadow: 0 0 0 999px rgba(0,0,0,0.18);
  pointer-events: none;
}

.progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  transition: width 0.15s ease;
}

.transfer-list {
  display: grid;
  gap: 10px;
}

.transfer-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  animation: fadeUp 0.3s ease;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.transfer-item.is-downloadable {
  cursor: pointer;
}

.transfer-item.is-downloadable:hover,
.transfer-item.is-downloadable:focus-visible {
  border-color: var(--border-active);
  background: rgba(255,255,255,0.03);
  transform: translateY(-1px);
  outline: none;
}

.transfer-item.is-highlighted {
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.transfer-item__icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  flex-shrink: 0;
}

.transfer-item.is-highlighted .transfer-item__icon {
  background: rgba(110,231,183,0.12);
  border-color: var(--accent-dim);
  color: var(--accent);
}

.transfer-item__body {
  flex: 1;
  min-width: 0;
}

.transfer-item__title {
  font-weight: 500;
  font-size: 14px;
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.5;
}

.transfer-item__meta {
  color: var(--text-dim);
  font-size: 12px;
  font-family: 'DM Mono', monospace;
  margin-top: 2px;
}

.transfer-item__action {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
}

.transfer-item__action:hover,
.transfer-item__action:focus-visible,
.transfer-item.is-downloadable:hover .transfer-item__action,
.transfer-item.is-downloadable:focus-visible .transfer-item__action {
  border-color: var(--border-active);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  outline: none;
}

.transfer-item.is-highlighted .transfer-item__action {
  border-color: var(--accent-dim);
  background: rgba(110,231,183,0.12);
  color: var(--accent);
}

.footer-note {
  text-align: center;
  margin-top: 44px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  opacity: 0.55;
}

@media (max-width: 920px) {
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .round-action {
    max-width: 320px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 36px 16px 64px;
  }

  .choice-grid {
    gap: 16px;
  }

  .mode-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .round-action {
    padding: 18px;
  }

  .round-action__icon {
    width: 68px;
    height: 68px;
  }

  .round-action__label {
    font-size: 1.2rem;
  }

  .surface-card {
    padding: 20px;
    border-radius: 20px;
  }

  .dropzone {
    padding: 36px 20px;
  }
}

@media (max-width: 420px) {
  .choice-grid {
    gap: 12px;
  }

  .round-action {
    padding: 14px;
    gap: 10px;
  }

  .round-action__icon {
    width: 56px;
    height: 56px;
  }

  .round-action__label {
    font-size: 1rem;
  }
}