/* exfil.cx — cyber-professional glassmorphic redesign */

:root {
  color-scheme: dark;

  /* surfaces */
  --bg: #0a0c11;
  --bg-deep: #06080c;
  --surface-1: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --surface-3: rgba(255, 255, 255, 0.08);
  --surface-solid: #14171f;
  --surface-solid-hi: #1c2030;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);

  /* text */
  --text: #e6e9f2;
  --text-dim: #aab1c4;
  --text-faint: #6d7589;

  /* brand */
  --electric: #00d1ff;
  --electric-soft: rgba(0, 209, 255, 0.18);
  --electric-glow: rgba(0, 209, 255, 0.35);
  --deep-purple: #8a2be2;
  --deep-purple-soft: rgba(138, 43, 226, 0.22);

  /* state */
  --ok: #4ade80;
  --warn: #ffbe5c;
  --err: #ff6a88;
  --on-primary: #001026;

  /* rhythm */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 22px;
  --shadow-lift: 0 30px 60px -30px rgba(0, 0, 0, 0.6), 0 8px 24px -12px rgba(0, 0, 0, 0.5);
  --glow: 0 0 0 1px rgba(0, 209, 255, 0.45), 0 0 32px -6px var(--electric-glow);

  --sans: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "Geist Mono", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.005em;
  padding-top: 64px;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 15% -10%, rgba(0, 209, 255, 0.10), transparent 45%),
    radial-gradient(circle at 90% 5%, rgba(138, 43, 226, 0.10), transparent 50%),
    radial-gradient(circle at 50% 110%, rgba(0, 209, 255, 0.05), transparent 60%),
    linear-gradient(180deg, #07090e 0%, #0a0c11 40%, #050608 100%);
}

.ambient::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 80%);
}

/* ---------- TOPBAR ---------- */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(10, 12, 17, 0.72);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid var(--border);
}

.topbar__inner {
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.brand__mark {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background:
    linear-gradient(135deg, var(--electric), var(--deep-purple));
  box-shadow: 0 0 16px -2px var(--electric-glow);
  position: relative;
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 3px;
  background: var(--bg);
}

.brand__name { color: var(--text); }
.brand__dot { color: var(--electric); }

.topnav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.topnav__link {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text-dim);
  font: inherit;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--r-md);
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease;
}

.topnav__link:hover { color: var(--text); background: var(--surface-1); }

.topnav__link.is-active {
  color: var(--electric);
  background: var(--electric-soft);
}

.topbar__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.status-pip {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text-faint);
  display: inline-block;
}

.status-pip--ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }

/* ---------- SHELL ---------- */

.shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.view { display: block; }
.view.hidden { display: none !important; }
.hidden { display: none !important; }

/* ---------- HERO ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 80px;
  padding: 24px 0 32px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--electric);
  margin-bottom: 18px;
}

.hero__title {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.accent { color: var(--electric); }

.hero__lede {
  margin: 0 0 24px;
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 52ch;
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.chip {
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero__warning {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(255, 190, 92, 0.08);
  border: 1px solid rgba(255, 190, 92, 0.25);
  color: #f3deb4;
  font-size: 0.88rem;
}

/* viewfinder visual */

.hero__viewfinder {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  max-width: 480px;
  margin-left: auto;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 209, 255, 0.0); }
  50%      { box-shadow: 0 0 48px -8px rgba(0, 209, 255, 0.25); }
}

.vf-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--electric);
  border-style: solid;
  border-width: 0;
  z-index: 2;
}
.vf-corner--tl { top: 14px; left: 14px; border-top-width: 2px; border-left-width: 2px; }
.vf-corner--tr { top: 14px; right: 14px; border-top-width: 2px; border-right-width: 2px; }
.vf-corner--bl { bottom: 14px; left: 14px; border-bottom-width: 2px; border-left-width: 2px; }
.vf-corner--br { bottom: 14px; right: 14px; border-bottom-width: 2px; border-right-width: 2px; }

.vf-content {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  gap: 14px;
  grid-auto-flow: row;
  opacity: 0.85;
}

.vf-glyph {
  width: 80px;
  height: 80px;
  color: var(--electric);
  opacity: 0.55;
}

.vf-meta { text-align: center; }

.vf-chip {
  position: absolute;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 10px;
  border-radius: 999px;
  z-index: 3;
}

.vf-chip--top {
  top: 25%;
  right: 18px;
  color: #e6d4ff;
  background: var(--deep-purple-soft);
  border: 1px solid rgba(209, 188, 255, 0.45);
}

.vf-chip--bot {
  bottom: 25%;
  left: 18px;
  color: #b4f5ff;
  background: rgba(0, 219, 233, 0.15);
  border: 1px solid rgba(0, 219, 233, 0.45);
}

/* ---------- BUTTONS ---------- */

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: transform 120ms ease, background 150ms ease, border-color 150ms ease, box-shadow 150ms ease, color 150ms ease;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--border-strong);
}

.btn:active:not(:disabled) { transform: scale(0.97); }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn--compact {
  min-height: 38px;
  padding: 8px 14px;
  font-size: 0.9rem;
}

.btn--primary {
  background: var(--electric);
  color: var(--on-primary);
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 0 22px -8px var(--electric-glow);
}

.btn--primary:hover:not(:disabled) {
  background: #19d8ff;
  box-shadow: 0 0 32px -6px var(--electric-glow);
}

.btn--ghost { background: var(--surface-1); }
.btn--ghost:hover:not(:disabled) { background: var(--surface-2); border-color: var(--border-strong); }

.btn--danger {
  background: rgba(255, 106, 136, 0.12);
  border-color: rgba(255, 106, 136, 0.4);
  color: #ffb4c2;
}

.btn--danger:hover:not(:disabled) {
  background: rgba(255, 106, 136, 0.2);
}

.btn__arrow {
  transition: transform 150ms ease;
}
.btn:hover .btn__arrow:not(:disabled) {
  transform: translateX(3px);
}

/* ---------- ROLE GRID ---------- */

.section-head { margin-bottom: 24px; }
.section-head--center { text-align: center; }

.section-head__title {
  margin: 0 0 6px;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.section-head__lede {
  margin: 0;
  color: var(--text-dim);
}

.section-head__rule {
  display: inline-block;
  width: 64px;
  height: 3px;
  border-radius: 999px;
  background: var(--electric);
  margin-top: 12px;
  box-shadow: 0 0 16px var(--electric-glow);
}

.role-pick { margin-bottom: 80px; }

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.role-card {
  position: relative;
  appearance: none;
  text-align: left;
  padding: 32px;
  border-radius: var(--r-xl);
  background: var(--surface-1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  overflow: hidden;
  transition: transform 200ms ease, background 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.role-card:hover {
  transform: translateY(-2px);
  background: var(--surface-2);
}

.role-card--sender:hover {
  border-color: rgba(0, 209, 255, 0.5);
  box-shadow: 0 24px 60px -24px rgba(0, 209, 255, 0.35);
}

.role-card--receiver:hover {
  border-color: rgba(138, 43, 226, 0.55);
  box-shadow: 0 24px 60px -24px rgba(138, 43, 226, 0.35);
}

.role-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: var(--electric-soft);
  color: var(--electric);
}

.role-card--receiver .role-card__icon {
  background: var(--deep-purple-soft);
  color: #d1bcff;
}

.role-card__icon svg { width: 28px; height: 28px; }

.role-card__eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 8px;
}

.role-card__title {
  margin: 0 0 10px;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.role-card__copy {
  margin: 0 0 20px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.role-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--electric);
}

.role-card--receiver .role-card__cta { color: #d1bcff; }

.role-card__glyph {
  position: absolute;
  right: -16px;
  bottom: -20px;
  width: 140px;
  height: 140px;
  color: currentColor;
  opacity: 0.05;
  pointer-events: none;
  transition: opacity 200ms ease;
}

.role-card:hover .role-card__glyph { opacity: 0.1; }

.role-card__glyph svg { width: 100%; height: 100%; color: var(--electric); }

/* ---------- HOW ---------- */

.how {
  margin: 0 0 80px;
  padding: 56px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 36px;
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.how-step { text-align: center; }

.how-step__num {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--electric);
  color: var(--electric);
  font-weight: 600;
  margin-bottom: 18px;
}

.how-step h4 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
}

.how-step p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.93rem;
}

/* ---------- DIAGNOSTICS ---------- */

.diagnostics-stack {
  display: grid;
  gap: 20px;
}

.card {
  background: var(--surface-1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
}

.card__title {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--electric);
  font-weight: 500;
}

.card__icon { color: var(--electric); width: 18px; height: 18px; display: inline-block; }
.card__icon svg { width: 100%; height: 100%; }

.card__status { margin-left: auto; display: inline-flex; align-items: center; gap: 8px; color: var(--text-dim); font-size: 11px; }

.card__hint { margin-left: auto; }

.card__head-actions {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.card__foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
  font-size: 0.85rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 20px;
}

.controls--tight {
  padding: 0 0 4px;
  gap: 8px;
}

.card .controls:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.terminal {
  margin: 0;
  padding: 20px;
  background: rgba(0, 0, 0, 0.42);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-dim);
  min-height: 180px;
  max-height: 340px;
  overflow: auto;
  white-space: pre-wrap;
}

/* ---------- WORKSPACE NAV ---------- */

.workspace-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.workspace-nav__roles {
  margin-left: auto;
  display: inline-flex;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}

.role-tab {
  appearance: none;
  background: transparent;
  color: var(--text-dim);
  border: 0;
  font: inherit;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease;
}

.role-tab:hover { color: var(--text); }

.role-tab.is-active {
  background: var(--electric);
  color: var(--on-primary);
  box-shadow: 0 0 18px -8px var(--electric-glow);
}

/* ---------- PANEL ---------- */

.panel {
  display: grid;
  gap: 24px;
}

.panel__head {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  flex-wrap: wrap;
}

.panel__head > div { flex: 1 1 auto; min-width: 240px; }

.panel__title {
  margin: 4px 0 6px;
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.panel__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--text-dim);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--surface-1);
  border: 1px solid var(--border);
  color: var(--text);
}

.badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text-faint);
}

.badge--idle::before { background: var(--text-faint); }
.badge--scanning {
  background: rgba(0, 209, 255, 0.12);
  border-color: rgba(0, 209, 255, 0.4);
  color: #b4f5ff;
}
.badge--scanning::before { background: var(--electric); box-shadow: 0 0 8px var(--electric); animation: pulse-dot 1.4s infinite; }
.badge--success {
  background: rgba(74, 222, 128, 0.12);
  border-color: rgba(74, 222, 128, 0.4);
  color: #b6f5cc;
}
.badge--success::before { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.badge--warning {
  background: rgba(255, 190, 92, 0.12);
  border-color: rgba(255, 190, 92, 0.4);
  color: #f5d8a3;
}
.badge--warning::before { background: var(--warn); }
.badge--error {
  background: rgba(255, 106, 136, 0.12);
  border-color: rgba(255, 106, 136, 0.4);
  color: #ffb4c2;
}
.badge--error::before { background: var(--err); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------- PANEL GRID ---------- */

.panel__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  grid-auto-rows: min-content;
  gap: 20px;
}

.card--qr,
.card--camera {
  grid-column: span 1;
}

.panel--sender .card--qr        { grid-row: 1; grid-column: 1; }
.panel--sender .card--camera    { grid-row: 1; grid-column: 2; }
.panel--sender .card--status    { grid-row: 2; grid-column: 1 / -1; }
.panel--sender .card--settings  { grid-row: 3; grid-column: 1; }
.panel--sender .card--preview   { grid-row: 3; grid-column: 2; }
.panel--sender .card--summary   { grid-row: 4; grid-column: 1 / -1; }

.panel--receiver .card--camera   { grid-row: 1; grid-column: 1; }
.panel--receiver .card--qr       { grid-row: 1; grid-column: 2; }
.panel--receiver .card--settings { grid-row: 2; grid-column: 1; }
.panel--receiver .card--status   { grid-row: 2; grid-column: 2; }
.panel--receiver .card--preview  { grid-row: 3; grid-column: 1 / -1; }
.panel--receiver .card--summary  { grid-row: 4; grid-column: 1 / -1; }

/* ---------- QR & VIDEO ---------- */

.qr-stage {
  position: relative;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 0%, rgba(0, 209, 255, 0.06), transparent 60%),
    rgba(0, 0, 0, 0.18);
  border-radius: 0;
  min-height: 200px;
  display: grid;
  place-items: center;
}

.qr-stage canvas {
  width: min(100%, 560px);
  height: auto;
  background: #fff;
  padding: 16px;
  border-radius: 12px;
  box-shadow: 0 16px 48px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.5);
  image-rendering: pixelated;
}

.video-shell {
  position: relative;
  overflow: hidden;
  background: #000;
  aspect-ratio: 4 / 3;
}

.video-shell--primary {
  aspect-ratio: 4 / 3;
}

.video-shell video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.video-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 18px;
  color: #d9e8ff;
  font-size: 0.9rem;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.72));
  pointer-events: none;
  z-index: 4;
}

.video-shell:not(:empty) > .video-overlay:has(+ video[src]),
.video-shell video[src] ~ .video-overlay {
  /* overlay always shows text — content is overlaid on top */
}

.scanline {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--electric), transparent);
  z-index: 3;
  animation: scanline 3.4s linear infinite;
  pointer-events: none;
}

@keyframes scanline {
  0% { transform: translateY(-2px); }
  100% { transform: translateY(60vh); }
}

.camera-controls {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 12px;
}

/* ---------- FORMS ---------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 20px;
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.field--full { grid-column: 1 / -1; }

.field__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
}

input[type="file"],
input[type="password"],
input[type="number"],
input[type="text"],
select {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 11px 14px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

input[type="file"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  border-color: var(--electric);
  box-shadow: 0 0 0 3px rgba(0, 209, 255, 0.18);
  background: rgba(0, 0, 0, 0.44);
}

input[type="file"] {
  padding: 8px 10px;
  font-size: 0.92rem;
  color: var(--text-dim);
}

select {
  font-family: var(--mono);
  font-size: 0.92rem;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='%2300d1ff' d='M0 0l5 6 5-6z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.field--toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--border);
}

.field--toggle input { width: 18px; height: 18px; accent-color: var(--electric); }
.field--toggle span { color: var(--text); font-size: 0.93rem; }

.callout {
  margin: 0 20px 16px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(0, 209, 255, 0.06);
  border: 1px solid rgba(0, 209, 255, 0.22);
  color: var(--text);
  font-size: 0.9rem;
}

/* ---------- META / STATUS ---------- */

.status-progress {
  padding: 16px 20px;
  display: grid;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.status-progress__track {
  height: 6px;
  background: rgba(0, 0, 0, 0.42);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.status-progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--electric), var(--deep-purple));
  box-shadow: 0 0 12px -2px var(--electric-glow);
  transition: width 240ms ease;
}

.status-progress__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.88rem;
}

.meta-grid,
.kv-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 16px 20px;
  margin: 0;
}

.meta-grid--compact { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.meta-grid > div,
.kv-list > div {
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--border);
}

.meta-grid__full,
.kv-list__full { grid-column: 1 / -1; }

.meta-grid dt,
.kv-list dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 6px;
}

.meta-grid dd,
.kv-list dd {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.4;
}

.mono { font-family: var(--mono); font-size: 0.88rem; }
.mono--dim { color: var(--text-faint); }
.wrap { overflow-wrap: anywhere; word-break: break-all; }

/* mini progress (preparation) */

.mini-progress {
  margin: 0 20px 20px;
  height: 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.42);
  overflow: hidden;
}

.mini-progress__bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--electric), var(--deep-purple));
  transition: width 200ms ease;
}

/* ---------- BUNDLE BROWSER ---------- */

.bundle-browser {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.bundle-browser__title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 10px;
}

.bundle-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.bundle-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--border);
}

.bundle-item__toggle { width: 18px; height: 18px; accent-color: var(--electric); }

.bundle-item.is-selected {
  border-color: rgba(0, 209, 255, 0.45);
  background: rgba(0, 209, 255, 0.06);
}

.bundle-item__meta strong { display: block; font-weight: 600; }
.bundle-item__meta span { display: block; color: var(--text-dim); font-size: 0.85rem; margin-top: 2px; }

.bundle-item__actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

.bundle-preview {
  margin-top: 14px;
  padding: 14px;
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.32);
  border: 1px solid var(--border);
}

.bundle-preview__title { font-weight: 600; }
.bundle-preview__meta { margin-top: 6px; color: var(--text-faint); font-size: 0.84rem; }
.bundle-preview__body { margin-top: 12px; color: var(--text-dim); white-space: pre-wrap; overflow-wrap: anywhere; }
.bundle-preview__body pre { margin: 0; white-space: pre-wrap; font: inherit; }
.bundle-preview__image { display: block; max-width: 100%; max-height: 340px; border-radius: var(--r-md); border: 1px solid var(--border); }

/* ---------- FOOTER ---------- */

.footer {
  margin-top: 48px;
  border-top: 1px solid var(--border);
  background: rgba(10, 12, 17, 0.6);
}

.footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-size: 0.85rem;
}

.footer__sep { color: var(--text-faint); }
.footer__perf { color: var(--electric); display: inline-flex; align-items: center; gap: 6px; }

/* ---------- TOAST ---------- */

.toast-stack {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: grid;
  gap: 8px;
  z-index: 1000;
  max-width: 380px;
}

.toast {
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: rgba(20, 23, 31, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lift);
  color: var(--text);
  font-size: 0.92rem;
  animation: toast-in 250ms ease-out both;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- RESPONSIVE: TABLET ---------- */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 56px;
  }

  .hero__viewfinder { margin-left: 0; max-width: 360px; }

  .role-grid { grid-template-columns: 1fr; }

  .how-grid { grid-template-columns: 1fr; gap: 24px; }

  .panel--sender .card--qr,
  .panel--sender .card--camera,
  .panel--sender .card--status,
  .panel--sender .card--settings,
  .panel--sender .card--preview,
  .panel--sender .card--summary,
  .panel--receiver .card--camera,
  .panel--receiver .card--qr,
  .panel--receiver .card--settings,
  .panel--receiver .card--status,
  .panel--receiver .card--preview,
  .panel--receiver .card--summary {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .panel__grid { grid-template-columns: 1fr; }

  .meta-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- RESPONSIVE: MOBILE ---------- */

@media (max-width: 720px) {
  body { padding-top: 60px; font-size: 14.5px; }

  .topbar { height: 60px; }
  .topbar__inner { padding: 0 16px; gap: 12px; }
  .topnav { gap: 0; }
  .topnav__link { padding: 8px 10px; font-size: 0.9rem; }
  .topbar__status { padding: 4px 10px; font-size: 11px; }
  .topbar__status-label { display: none; }

  .shell { padding: 20px 16px 40px; }

  .hero { padding: 16px 0 24px; margin-bottom: 40px; gap: 24px; }
  .hero__title { font-size: clamp(1.9rem, 7vw, 2.4rem); }
  .hero__lede { font-size: 0.96rem; }
  .hero__viewfinder { max-width: 100%; }

  .role-pick, .how { margin-bottom: 48px; }
  .role-card { padding: 22px; }
  .role-card__title { font-size: 1.35rem; }

  .how { padding: 36px 0; }

  .form-grid { grid-template-columns: 1fr; gap: 12px; padding: 16px; }
  .card__head { padding: 14px 16px; }
  .controls { padding: 14px 16px; }
  .meta-grid, .kv-list { padding: 14px 16px; grid-template-columns: 1fr; }
  .meta-grid--compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .status-progress { padding: 14px 16px; }
  .qr-stage { padding: 14px; }
  .card__foot { padding: 10px 16px; }
  .bundle-browser { padding: 14px 16px 16px; }
  .callout { margin: 0 16px 12px; }
  .mini-progress { margin: 0 16px 16px; }
  .camera-controls { padding: 14px 16px; }
  .controls .btn--compact { flex: 1 1 calc(50% - 5px); }

  .workspace-nav__roles { width: 100%; margin-left: 0; }
  .role-tab { flex: 1; text-align: center; }

  .footer__inner { padding: 16px; font-size: 0.8rem; }
}
@media (max-width: 720px) and (orientation: landscape) {
  .panel__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .panel--sender .card--qr,
  .panel--sender .card--camera,
  .panel--receiver .card--camera,
  .panel--receiver .card--qr {
    grid-row: 1;
  }

  .panel--sender .card--qr,
  .panel--receiver .card--camera {
    grid-column: 1;
  }

  .panel--sender .card--camera,
  .panel--receiver .card--qr {
    grid-column: 2;
  }

  .panel--sender .card--status,
  .panel--sender .card--settings,
  .panel--sender .card--preview,
  .panel--sender .card--summary,
  .panel--receiver .card--settings,
  .panel--receiver .card--status,
  .panel--receiver .card--preview,
  .panel--receiver .card--summary {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .card--qr,
  .card--camera {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .card--qr .qr-stage,
  .card--camera .video-shell {
    flex: 1;
    min-height: min(56vh, 320px);
  }

  .card--qr .qr-stage {
    padding: 10px;
  }

  .card--qr canvas {
    width: min(100%, calc(100vh - 180px));
    padding: 10px;
  }
}

/* ---------- TRANSFER FOCUS (mobile critical path) ---------- */

body.transfer-focus { padding-top: 56px; }

body.transfer-focus .topbar { height: 56px; background: rgba(10, 12, 17, 0.92); }

body.transfer-focus .panel__lede,
body.transfer-focus .panel__head .eyebrow { display: none; }

body.transfer-focus .panel__head {
  padding: 0;
  margin-bottom: 12px;
}

body.transfer-focus .panel__title {
  font-size: 1.4rem;
  margin: 0;
}

@media (max-width: 1024px) {
  /* In transfer focus, push the camera (receiver) or QR (sender) to absolute top */
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--camera {
    order: 1;
  }
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--qr        { order: 2; }
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--status    { order: 3; }
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--settings  { order: 4; }
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--preview   { order: 5; }
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--summary   { order: 6; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--qr        { order: 1; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--camera    { order: 2; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--status    { order: 3; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--settings  { order: 4; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--preview   { order: 5; }
  body.transfer-focus.transfer-focus--sender   .panel--sender   .card--summary   { order: 6; }

  body.transfer-focus .panel__grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
}

@media (max-width: 720px) {
  body.transfer-focus .shell { padding: 12px 12px 32px; }

  body.transfer-focus .workspace-nav { margin-bottom: 12px; }
  body.transfer-focus .workspace-nav__roles { display: none; }

  body.transfer-focus.transfer-focus--sender .panel--sender .card--qr .qr-stage {
    padding: 10px;
  }

  body.transfer-focus.transfer-focus--sender .panel--sender .card--qr canvas {
    width: min(100%, 92vw);
    max-height: 78vh;
    padding: 10px;
    border-radius: 8px;
  }

  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--camera .video-shell {
    aspect-ratio: 3 / 4;
    min-height: 64vh;
  }

  /* When transfer focused, hide everything below QR/camera until user scrolls (still accessible) */
  body.transfer-focus .card__head { padding: 10px 14px; }
  body.transfer-focus .card__title { font-size: 11px; }
}

/* ---------- TRANSFER FOCUS: LANDSCAPE MOBILE ---------- */
/* Phones rotated to landscape get a 2-column layout with QR and camera
   side-by-side so both stay large. Triggered on short, wide viewports. */

@media (orientation: landscape) and (max-height: 540px) {
  body.transfer-focus { padding-top: 52px; }
  body.transfer-focus .topbar { height: 52px; }

  body.transfer-focus .shell { padding: 8px 10px 24px; }

  body.transfer-focus .workspace-nav { display: none; }
  body.transfer-focus .panel__head { margin-bottom: 6px; }
  body.transfer-focus .panel__title { font-size: 1rem; }

  body.transfer-focus .panel__grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  body.transfer-focus.transfer-focus--sender .panel--sender .card--qr,
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--camera {
    grid-column: 1;
    grid-row: 1;
    order: 1;
  }

  body.transfer-focus.transfer-focus--sender .panel--sender .card--camera,
  body.transfer-focus.transfer-focus--receiver .panel--receiver .card--qr {
    grid-column: 2;
    grid-row: 1;
    order: 2;
  }

  body.transfer-focus .panel__grid > .card:not(.card--qr):not(.card--camera) {
    grid-column: 1 / -1;
    grid-row: auto;
    order: 3;
  }

  body.transfer-focus .card--qr,
  body.transfer-focus .card--camera {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  body.transfer-focus .card--qr .qr-stage {
    flex: 1;
    aspect-ratio: auto;
    min-height: 0;
    padding: 6px;
  }

  body.transfer-focus .card--qr canvas {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 72vh;
    padding: 6px;
    border-radius: 6px;
  }

  body.transfer-focus .card--camera .video-shell {
    flex: 1;
    aspect-ratio: auto;
    min-height: 72vh;
  }

  body.transfer-focus .card__head {
    padding: 8px 12px;
  }

  body.transfer-focus .card__title { font-size: 10.5px; }

  /* shrink camera controls so the viewfinder dominates */
  body.transfer-focus .card--camera .camera-controls {
    padding: 8px 12px;
    gap: 6px;
  }
  body.transfer-focus .card--camera .camera-controls .field__label { display: none; }
  body.transfer-focus .card--camera .camera-controls select { padding: 6px 32px 6px 10px; font-size: 0.84rem; }
  body.transfer-focus .card--camera .camera-controls .btn { min-height: 32px; padding: 4px 10px; font-size: 0.82rem; }
}

/* ---------- A11Y: REDUCED MOTION ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}