/* ============================================================
   Toffee — Secure Transit design system (vanilla CSS, no build)
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Hanken+Grotesk:wght@600;700;800&family=JetBrains+Mono:wght@500&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap");

:root {
  /* Surfaces */
  --surface: #10141a;
  --surface-dim: #10141a;
  --surface-bright: #353940;
  --surface-container-lowest: #0a0e14;
  --surface-container-low: #181c22;
  --surface-container: #1c2026;
  --surface-container-high: #262a31;
  --surface-container-highest: #31353c;
  --surface-card: #161b22;
  --surface-variant: #31353c;

  /* On-surface */
  --on-surface: #dfe2eb;
  --on-surface-variant: #c2c6d6;
  --inverse-surface: #dfe2eb;
  --inverse-on-surface: #2d3137;

  /* Outlines */
  --outline: #8c909f;
  --outline-variant: #424754;
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Brand */
  --primary: #adc6ff;
  --primary-container: #4d8eff;
  --on-primary: #002e6a;
  --on-primary-container: #00285d;
  --secondary: #ffb95f;
  --secondary-container: #ee9800;
  --on-secondary: #472a00;
  --tertiary: #4cd7f6;
  --tertiary-container: #009eb9;
  --on-tertiary: #003640;
  --success-teal: #10b981;
  --error: #ffb4ab;
  --error-container: #93000a;
  --on-error: #690005;

  /* Background */
  --background: #10141a;
  --on-background: #dfe2eb;

  /* Spacing scale (8px base) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* Radius */
  --r-sm: 4px;
  --r: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-2xl: 28px;
  --r-full: 9999px;

  /* Layout */
  --max: 1200px;
  --gutter: 24px;
  --margin-mobile: 16px;
  --margin-desktop: 40px;

  /* Typography */
  --font-display: "Hanken Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Shadow */
  --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.45);
  --shadow-glow-primary: 0 0 24px rgba(173, 198, 255, 0.18);
  --shadow-glow-teal: 0 0 12px rgba(76, 215, 246, 0.3);
}

/* ============================================================
   Reset
   ============================================================ */
*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 24px;
  color: var(--on-background);
  background-color: var(--background);
  background-image:
    radial-gradient(at 0% 0%, rgba(173, 198, 255, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(76, 215, 246, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.9; }
small { color: var(--on-surface-variant); }
button { font-family: inherit; }

::selection { background: rgba(77, 142, 255, 0.3); }

/* ============================================================
   Material Symbols
   ============================================================ */
.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
}
.ms-fill { font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24; }

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--margin-mobile);
  padding-right: var(--margin-mobile);
}
@media (min-width: 768px) {
  .container { padding-left: var(--margin-desktop); padding-right: var(--margin-desktop); }
}

.stack { display: flex; flex-direction: column; gap: var(--sp-2); }
.row { display: flex; gap: var(--sp-2); align-items: center; flex-wrap: wrap; }
.grow { flex-grow: 1; }

/* ============================================================
   Glassmorphism
   ============================================================ */
.glass-card {
  background: rgba(22, 27, 34, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
}
.inner-glow { box-shadow: inset 0 0 20px rgba(173, 198, 255, 0.05); }

/* ============================================================
   TopNavBar
   ============================================================ */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-4) var(--margin-mobile);
  max-width: var(--max);
  margin: 0 auto;
  background: rgba(16, 20, 26, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 8px rgba(173, 198, 255, 0.05);
}
@media (min-width: 768px) {
  .topnav { padding-left: var(--margin-desktop); padding-right: var(--margin-desktop); }
}
.brand-mark {
  display: flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--primary);
  letter-spacing: -0.01em;
}
.brand-mark img { width: 28px; height: 28px; }
.topnav-links { display: none; gap: var(--sp-8); align-items: center; }
@media (min-width: 768px) { .topnav-links { display: flex; } }
.topnav-links a {
  color: var(--on-surface-variant);
  font-size: 13px;
  font-weight: 500;
  transition: color 0.15s;
}
.topnav-links a:hover { color: var(--on-surface); opacity: 1; }
.topnav-links a.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 4px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--on-surface);
  padding: 10px 16px;
  border-radius: var(--r-md);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.2s;
  font-family: var(--font-body);
  user-select: none;
}
.btn:hover { background: rgba(255, 255, 255, 0.08); }
.btn:active { transform: scale(0.98); }
.btn.primary {
  background: var(--primary-container);
  color: var(--on-primary-container);
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(77, 142, 255, 0.2);
}
.btn.primary:hover { filter: brightness(1.1); background: var(--primary-container); }
.btn.ghost { background: transparent; border-color: var(--glass-border); }
.btn.danger {
  background: rgba(255, 180, 171, 0.12);
  border-color: rgba(255, 180, 171, 0.25);
  color: var(--error);
}
.btn.danger:hover { background: rgba(255, 180, 171, 0.2); }
.btn.icon { padding: 8px; width: 36px; height: 36px; border-radius: var(--r); }
.btn.lg { padding: 16px 24px; font-size: 15px; border-radius: var(--r-lg); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ============================================================
   Chips & Badges
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--on-surface-variant);
}
.chip.primary { color: var(--primary); border-color: rgba(173, 198, 255, 0.3); background: rgba(173, 198, 255, 0.1); }
.chip.teal { color: var(--tertiary); border-color: rgba(76, 215, 246, 0.3); background: rgba(76, 215, 246, 0.1); }
.chip.success { color: var(--success-teal); border-color: rgba(16, 185, 129, 0.3); background: rgba(16, 185, 129, 0.1); }
.chip.warn { color: var(--secondary); border-color: rgba(255, 185, 95, 0.3); background: rgba(255, 185, 95, 0.1); }
.chip.error { color: var(--error); border-color: rgba(255, 180, 171, 0.3); background: rgba(255, 180, 171, 0.1); }
.chip .material-symbols-outlined { font-size: 14px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
  padding: 6px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--on-surface-variant);
}
.badge.ok { color: var(--success-teal); border-color: rgba(16, 185, 129, 0.28); background: rgba(16, 185, 129, 0.08); }
.badge.warn { color: var(--secondary); border-color: rgba(255, 185, 95, 0.28); background: rgba(255, 185, 95, 0.08); }
.badge.err { color: var(--error); border-color: rgba(255, 180, 171, 0.28); background: rgba(255, 180, 171, 0.08); }
.badge.teal { color: var(--tertiary); border-color: rgba(76, 215, 246, 0.28); background: rgba(76, 215, 246, 0.08); }

/* ============================================================
   Status dot (live indicator)
   ============================================================ */
.status-dot {
  position: relative;
  display: inline-flex;
  height: 8px;
  width: 8px;
  border-radius: var(--r-full);
  background: var(--success-teal);
}
.status-dot::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-full);
  background: inherit;
  animation: ping 2s infinite cubic-bezier(0, 0, 0.2, 1);
  opacity: 0.6;
}
.status-dot.warn { background: var(--secondary); }
.status-dot.error { background: var(--error); }
.status-dot.idle { background: var(--outline-variant); }
.status-dot.idle::before { display: none; }
@keyframes ping {
  0% { transform: scale(1); opacity: 0.6; }
  75%, 100% { transform: scale(2.4); opacity: 0; }
}

/* ============================================================
   Forms
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--sp-4); }
.label {
  font-size: 12px;
  color: var(--on-surface-variant);
  font-weight: 700;
  font-family: var(--font-body);
}
.label-caps {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}
.input, .textarea {
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
.input:focus, .textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(173, 198, 255, 0.12);
}
.textarea { resize: vertical; min-height: 200px; font-family: var(--font-mono); line-height: 1.5; }
.mono { font-family: var(--font-mono); font-size: 12px; word-break: break-all; }

/* ============================================================
   Toggle (one-shot)
   ============================================================ */
.toggle {
  position: relative;
  display: inline-flex;
  width: 40px;
  height: 22px;
  background: var(--surface-container-highest);
  border-radius: var(--r-full);
  padding: 3px;
  cursor: pointer;
  transition: background 0.2s;
  border: none;
  flex-shrink: 0;
}
.toggle .knob {
  width: 16px;
  height: 16px;
  background: var(--on-surface-variant);
  border-radius: var(--r-full);
  transition: transform 0.2s, background 0.2s;
}
.toggle.on { background: rgba(76, 215, 246, 0.2); }
.toggle.on .knob { transform: translateX(18px); background: var(--tertiary); }
.toggle:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============================================================
   Progress bar
   ============================================================ */
.progress {
  width: 100%;
  height: 6px;
  background: var(--surface-container-lowest);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress > div {
  height: 100%;
  background: var(--tertiary);
  box-shadow: 0 0 12px rgba(76, 215, 246, 0.4);
  border-radius: var(--r-full);
  transition: width 0.4s ease;
  width: 0;
}
.progress.done > div { background: var(--success-teal); box-shadow: 0 0 12px rgba(16, 185, 129, 0.3); }
.progress.error > div { background: var(--error); box-shadow: none; }

/* ============================================================
   Layout: hero + sections
   ============================================================ */
main { flex-grow: 1; padding-top: 96px; padding-bottom: 96px; }

.hero {
  padding-top: var(--sp-12);
  padding-bottom: var(--sp-12);
  text-align: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 var(--sp-4);
}
.hero h1 .accent { color: var(--primary); }
.hero p.lead {
  max-width: 640px;
  margin: 0 auto;
  color: var(--on-surface-variant);
  font-size: 16px;
  opacity: 0.85;
  line-height: 1.6;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
  margin-top: var(--sp-12);
}
@media (min-width: 860px) {
  .hero-grid { grid-template-columns: 2fr 1fr; }
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--outline-variant);
  border-radius: var(--r-xl);
  padding: var(--sp-12);
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  min-height: 320px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(173, 198, 255, 0.05);
}
.dropzone .icon-circle {
  width: 64px; height: 64px;
  border-radius: var(--r-full);
  background: rgba(173, 198, 255, 0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-2);
}
.dropzone .icon-circle .material-symbols-outlined { font-size: 32px; color: var(--primary); }
.dropzone h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin: 0;
}
.dropzone p { margin: 0; color: var(--on-surface-variant); font-size: 14px; }

/* Sidebar tiles */
.sidebar { display: flex; flex-direction: column; gap: var(--gutter); }
.sidebar-tile {
  padding: var(--sp-6);
  border-radius: var(--r-xl);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  background: rgba(22, 27, 34, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: background 0.2s;
}
.sidebar-tile:hover { background: rgba(38, 42, 49, 0.7); }
.sidebar-tile .icon-tile {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: rgba(76, 215, 246, 0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--tertiary);
}
.sidebar-tile h4 { font-family: var(--font-display); font-size: 18px; margin: 0; }
.sidebar-tile p { margin: 0; font-size: 13px; color: var(--on-surface-variant); }

/* Network status card */
.netstat { display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-5); }
.netstat-row { display: flex; align-items: center; gap: var(--sp-3); font-size: 13px; }

/* ============================================================
   Active shares section
   ============================================================ */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.section-head p { margin: 0; color: var(--on-surface-variant); font-size: 14px; }

.shares-list { display: flex; flex-direction: column; gap: var(--sp-3); }

.share-card {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-5);
  border-radius: var(--r-xl);
  background: rgba(22, 27, 34, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  transition: box-shadow 0.2s, transform 0.1s;
  flex-wrap: wrap;
}
.share-card:hover { box-shadow: 0 8px 32px rgba(173, 198, 255, 0.08); }
.share-card .icon-tile {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--surface-container-highest);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.share-card .icon-tile .material-symbols-outlined { font-size: 24px; color: var(--primary); }
.share-card.text .icon-tile .material-symbols-outlined { color: var(--secondary); }
.share-card .share-body { flex-grow: 1; min-width: 200px; }
.share-card .share-top { display: flex; justify-content: space-between; margin-bottom: 6px; gap: var(--sp-3); flex-wrap: wrap; }
.share-card .share-name { font-size: 14px; font-weight: 600; color: var(--on-surface); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.share-card .share-pct { font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: var(--tertiary); }
.share-card .share-pct.done { color: var(--success-teal); }
.share-card .share-pct.error { color: var(--error); }
.share-card .share-actions { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.share-card .toggle-group { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.share-card .toggle-group .label-caps { font-size: 9px; }

/* Empty state for shares list */
.shares-empty {
  padding: var(--sp-8);
  text-align: center;
  color: var(--on-surface-variant);
  font-size: 14px;
  border: 1px dashed var(--outline-variant);
  border-radius: var(--r-xl);
}

/* Warning banner */
.warn-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  margin-top: var(--sp-5);
  border-radius: var(--r-md);
  background: rgba(255, 185, 95, 0.08);
  border: 1px solid rgba(255, 185, 95, 0.2);
  color: var(--secondary);
  font-size: 13px;
}
.warn-banner .material-symbols-outlined { font-size: 20px; flex-shrink: 0; }

/* ============================================================
   How it works section
   ============================================================ */
.how-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  margin-top: var(--sp-12);
}
@media (min-width: 768px) {
  .how-grid { grid-template-columns: repeat(3, 1fr); }
}
.how-item { text-align: center; display: flex; flex-direction: column; align-items: center; }
.how-item .how-icon {
  width: 56px; height: 56px;
  border-radius: var(--r-full);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-5);
}
.how-item h4 { font-family: var(--font-display); font-size: 20px; margin: 0 0 var(--sp-3); }
.how-item p { color: var(--on-surface-variant); font-size: 14px; line-height: 1.6; margin: 0; }

.section-caps {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  text-align: center;
  margin-bottom: var(--sp-6);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  width: 100%;
  padding: var(--sp-12) var(--margin-mobile);
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  background: var(--surface-dim);
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .footer { padding-left: var(--margin-desktop); padding-right: var(--margin-desktop); flex-direction: row; justify-content: space-between; text-align: left; }
}
.footer .label-caps { color: var(--on-surface-variant); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--sp-6); justify-content: center; }
@media (min-width: 768px) { .footer-links { gap: var(--sp-12); } }
.footer-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--tertiary); opacity: 1; }

/* ============================================================
   Modal
   ============================================================ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center; justify-content: center;
  padding: var(--sp-4);
  z-index: 100;
}
.modal-backdrop.open { display: flex; }
.modal {
  width: min(720px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--r-2xl);
  background: var(--surface-card);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
}
.modal-top {
  padding: var(--sp-5) var(--sp-6);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
}
.modal-top strong { font-family: var(--font-display); font-size: 18px; }
.modal-content { padding: var(--sp-6); display: flex; flex-direction: column; gap: var(--sp-4); }
.modal-footer {
  display: flex; gap: var(--sp-3); justify-content: flex-end; flex-wrap: wrap;
  padding: var(--sp-5) var(--sp-6);
  border-top: 1px solid var(--glass-border);
}

.mode-switch {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  background: rgba(0, 0, 0, 0.2);
  align-self: flex-start;
}
.mode-btn {
  border: none;
  background: transparent;
  color: var(--on-surface-variant);
  padding: 8px 16px;
  border-radius: var(--r);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.mode-btn.active {
  color: var(--on-surface);
  background: rgba(173, 198, 255, 0.15);
  box-shadow: inset 0 0 0 1px rgba(173, 198, 255, 0.2);
}

/* Modal dropzone (mini) */
.mini-drop {
  border: 1.5px dashed var(--outline-variant);
  border-radius: var(--r-md);
  padding: var(--sp-6);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
}
.mini-drop:hover, .mini-drop.dragover { border-color: var(--primary); background: rgba(173, 198, 255, 0.05); }
.mini-drop .material-symbols-outlined { font-size: 28px; color: var(--primary); }
.mini-drop .file-info { color: var(--on-surface-variant); font-size: 13px; }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed;
  left: 50%; transform: translateX(-50%);
  bottom: var(--sp-6);
  padding: 10px 16px;
  border-radius: var(--r-full);
  border: 1px solid var(--glass-border);
  background: rgba(22, 27, 34, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  color: var(--on-surface);
  display: none;
  z-index: 200;
  font-weight: 700;
  font-size: 13px;
}
.toast.show { display: block; }

/* ============================================================
   Receiver page
   ============================================================ */
.receiver-main {
  flex-grow: 1;
  padding-top: 96px;
  padding-bottom: var(--sp-16);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-left: var(--margin-mobile);
  padding-right: var(--margin-mobile);
}
.receiver-blob {
  position: absolute;
  width: 384px; height: 384px;
  border-radius: var(--r-full);
  filter: blur(120px);
  pointer-events: none;
  animation: pulse-slow 3s infinite ease-in-out;
}
.receiver-blob.a { top: 25%; left: 25%; background: rgba(173, 198, 255, 0.1); }
.receiver-blob.b { bottom: 25%; right: 25%; background: rgba(76, 215, 246, 0.1); animation-delay: 1.5s; }
@keyframes pulse-slow { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.6; } }

.receiver-wrap { width: 100%; max-width: 560px; z-index: 1; display: flex; flex-direction: column; gap: var(--sp-8); }
.receiver-header { text-align: center; }
.receiver-header h1 {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 600;
  margin: var(--sp-2) 0 0;
  letter-spacing: -0.01em;
}
.receiver-header p { color: var(--on-surface-variant); font-size: 14px; margin: 0; }

.receiver-card {
  border-radius: var(--r-2xl);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  position: relative;
  overflow: hidden;
}

/* Direct connection metaphor */
.direct-line { display: flex; align-items: center; justify-content: space-between; opacity: 0.6; }
.direct-node {
  width: 40px; height: 40px;
  border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--glass-border);
  background: var(--surface-container);
}
.direct-node.target { background: rgba(173, 198, 255, 0.2); border-color: rgba(173, 198, 255, 0.4); }
.direct-line .line {
  flex-grow: 1;
  margin: 0 var(--sp-4);
  height: 1px;
  background: var(--glass-border);
  position: relative;
  overflow: hidden;
}
.direct-line .line::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 50%;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  animation: shimmer 2s infinite;
}
@keyframes shimmer { 0% { transform: translateX(-100%); } 100% { transform: translateX(200%); } }

.file-block { display: flex; align-items: center; gap: var(--sp-5); }
.file-block .icon-tile-lg {
  width: 80px; height: 80px;
  border-radius: var(--r-lg);
  background: var(--surface-container-high);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-card);
}
.file-block .icon-tile-lg .material-symbols-outlined { font-size: 40px; color: var(--tertiary); }
.file-block h2 { font-family: var(--font-display); font-size: 20px; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-meta { display: flex; align-items: center; gap: var(--sp-2); margin-top: 4px; }
.file-meta .dot { width: 4px; height: 4px; border-radius: var(--r-full); background: var(--outline-variant); }

.live-indicator {
  display: flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  background: rgba(76, 215, 246, 0.1);
  border: 1px solid rgba(76, 215, 246, 0.2);
  border-radius: var(--r-md);
  color: var(--tertiary);
  font-size: 13px;
  font-weight: 500;
}

.trust-grid { display: grid; grid-template-columns: 1fr; gap: var(--sp-3); }
@media (min-width: 480px) { .trust-grid { grid-template-columns: 1fr 1fr; } }
.trust-cell {
  display: flex; align-items: flex-start; gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-lg);
  border: 1px solid var(--glass-border);
  background: rgba(24, 28, 34, 0.5);
}
.trust-cell h5 { font-size: 13px; margin: 0 0 2px; font-weight: 700; }
.trust-cell p { font-size: 11px; color: var(--on-surface-variant); margin: 0; line-height: 1.4; }
.trust-cell .material-symbols-outlined { font-size: 22px; flex-shrink: 0; }

.receiver-error {
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: rgba(255, 180, 171, 0.08);
  border: 1px solid rgba(255, 180, 171, 0.2);
  color: var(--error);
  font-size: 13px;
  display: none;
}

/* ============================================================
   How page (documentation)
   ============================================================ */
.narrow { max-width: 760px; }
.doc h1 { font-family: var(--font-display); font-size: 32px; margin: 0 0 var(--sp-4); }
.doc h2 { font-family: var(--font-display); font-size: 20px; margin: var(--sp-6) 0 var(--sp-2); }
.doc p, .doc li { color: var(--on-surface-variant); line-height: 1.6; }
.doc ul { padding-left: 20px; }
.doc code { font-family: var(--font-mono); background: rgba(255, 255, 255, 0.06); padding: 2px 6px; border-radius: 4px; font-size: 13px; }

/* Utility */
.hidden { display: none !important; }