:root {
  --bg: #060606;
  --fg: #f4f4f4;
  --muted: #8a8a8a;
  --line: #1c1c1c;
  --line2: #2a2a2a;
  --accent: #ffffff;
  --card: #0d0d0d;
  --radius: 16px;
}

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

html, body { height: 100%; }

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  overflow-x: hidden;
  letter-spacing: 0.2px;
  display: flex;
  flex-direction: column;
}

/* Shared icon sizing + alignment */
[data-lucide] {
  width: 18px;
  height: 18px;
  stroke-width: 2;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Gradient ambiance */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,255,255,0.08), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(255,255,255,0.06), transparent 55%),
    linear-gradient(160deg, #000 0%, #0a0a0a 50%, #000 100%);
}
.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, transparent 0 2px, rgba(255,255,255,0.015) 2px 3px);
  mix-blend-mode: overlay;
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(6,6,6,0.6);
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, #fff, #555);
  color: #000;
  box-shadow: 0 0 18px rgba(255,255,255,0.12);
}
.logo [data-lucide] { width: 20px; height: 20px; }
.brand h1 { font-size: 19px; font-weight: 800; letter-spacing: 3px; line-height: 1; }
.brand h1 span { font-weight: 200; color: var(--muted); }
.status {
  font-size: 12px; color: var(--muted);
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, #fff, #888);
  box-shadow: 0 0 10px rgba(255,255,255,0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

/* Layout */
.layout {
  width: 100%;
  max-width: 1100px;
  margin: 32px auto;
  padding: 0 24px;
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(6px);
}

.label {
  font-size: 11px; letter-spacing: 3px; color: var(--muted);
  margin-bottom: 14px; display: flex; align-items: center; gap: 8px;
}

/* Address generator */
.addr-row { display: flex; gap: 10px; align-items: stretch; }
#addrInput {
  flex: 1;
  min-width: 0;
  background: #000;
  border: 1px solid var(--line2);
  color: var(--fg);
  padding: 0 16px;
  height: 50px;
  border-radius: 12px;
  font-size: 15px;
  font-family: "SFMono-Regular", Consolas, monospace;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
#addrInput:focus {
  border-color: #555;
  box-shadow: 0 0 0 4px rgba(255,255,255,0.04);
}
.hint { margin-top: 14px; font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

.expire-bar {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--fg);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 12px;
}
.expire-bar [data-lucide] { width: 15px; height: 15px; color: var(--muted); }
.expire-bar.warn { border-color: rgba(255,107,107,0.4); color: #ff8a8a; }
.expire-bar.warn [data-lucide] { color: #ff8a8a; }
.expire-bar.expired { border-color: rgba(255,107,107,0.6); color: #ff6b6b; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: var(--fg);
  color: #000;
  border: none;
  border-radius: 12px;
  height: 50px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .15s, opacity .15s, background .2s, color .2s, border-color .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line2); }
.btn.ghost:hover { background: rgba(255,255,255,0.06); }
.btn.icon-only { width: 50px; padding: 0; }
.btn.small { height: 36px; padding: 0 14px; font-size: 12px; font-weight: 600; }
.btn.danger { background: transparent; color: #ff6b6b; border: 1px solid rgba(255,107,107,0.3); }
.btn.danger:hover { background: rgba(255,107,107,0.08); }
.btn.ok { background: #2ecc71; color: #04130a; }

/* Inbox */
.inbox-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; gap: 12px; }
.inbox-head .label { margin-bottom: 0; }
.tools { display: flex; gap: 8px; }

.list { display: flex; flex-direction: column; gap: 10px; }
.empty { text-align: center; color: var(--muted); padding: 56px 0; font-size: 14px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.empty [data-lucide] { width: 28px; height: 28px; opacity: .5; }

.mail-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  background: #000;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color .2s, transform .15s, background .2s;
}
.mail-item:hover { border-color: #555; transform: translateY(-1px); background: #0b0b0b; }
.mail-item .mail-ic {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  border: 1px solid var(--line);
}
.mail-item .from { font-weight: 600; font-size: 14px; }
.mail-item .subject { color: var(--fg); font-size: 13px; margin-top: 2px; }
.mail-item .preview { color: var(--muted); font-size: 12px; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mail-item .meta-side { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; text-align: right; }
.mail-item .when { color: var(--fg); font-size: 11px; }
.mail-item .tags { display: flex; gap: 6px; margin-top: 2px; }
.mail-item .tag {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 10px; color: var(--muted);
  border: 1px solid var(--line2);
  border-radius: 6px;
  padding: 2px 6px;
}
.mail-item .tag [data-lucide] { width: 11px; height: 11px; }

/* Reader */
.reader { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px);} to {opacity:1; transform:none;} }
.back { margin-bottom: 18px; }
.mail-meta { border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 18px; }
.mail-meta h2 { font-size: 22px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.mail-meta h2 [data-lucide] { color: var(--muted); }
.meta-grid { display: grid; grid-template-columns: 70px 1fr; gap: 8px 14px; font-size: 13px; }
.meta-k { color: var(--muted); letter-spacing: 1px; }
.meta-v { color: var(--fg); word-break: break-all; }

.mail-body { min-height: 200px; }
.mail-body iframe {
  width: 100%;
  min-height: 600px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.mail-body .plain {
  white-space: pre-wrap;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  color: var(--fg);
  background: #000;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  line-height: 1.6;
}

.foot { text-align: center; color: var(--muted); font-size: 11px; padding: 24px; letter-spacing: 1px; }

.hidden { display: none !important; }

@media (min-width: 820px) {
  .layout { grid-template-columns: 380px 1fr; align-items: start; }
}

/* ---------- Responsive : tablette / téléphone ---------- */

/* Tablette */
@media (max-width: 819px) {
  .topbar { padding: 14px 18px; }
  .layout { padding: 0 16px; margin: 20px auto; gap: 18px; }
  .panel { padding: 18px; }
}

/* Grand écran */
@media (min-width: 1400px) {
  .layout { max-width: 1280px; }
  .layout { grid-template-columns: 420px 1fr; }
}

/* Téléphone */
@media (max-width: 560px) {
  .topbar {
    padding: 12px 14px;
    flex-wrap: wrap;
    gap: 10px;
  }
  .brand h1 { font-size: 16px; letter-spacing: 2px; }
  .logo { width: 32px; height: 32px; border-radius: 9px; }
  .logo [data-lucide] { width: 17px; height: 17px; }

  .layout { padding: 0 12px; margin: 16px auto; gap: 14px; }
  .panel { padding: 16px; border-radius: 14px; }

  .label { font-size: 10px; letter-spacing: 2px; margin-bottom: 12px; }

  /* Adresse : empile l'input et les boutons */
  .addr-row {
    flex-direction: column;
    align-items: stretch;
  }
  #addrInput { height: 46px; font-size: 13px; padding: 0 12px; }
  .addr-row .btn { width: 100%; height: 46px; }
  .btn.icon-only { width: 100%; }

  .expire-bar { font-size: 11px; padding: 8px 10px; }

  /* Boîte de réception */
  .inbox-head {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .tools { width: 100%; }
  .tools .btn { flex: 1; }

  .mail-item {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "ic from"
      "ic subject"
      "ic preview"
      "ic side";
    row-gap: 6px;
  }
  .mail-item .mail-ic { grid-area: ic; }
  .mail-item .from { grid-area: from; }
  .mail-item .subject { grid-area: subject; }
  .mail-item .preview { grid-area: preview; }
  .mail-item .meta-side {
    grid-area: side;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    margin-top: 4px;
  }

  .mail-meta h2 { font-size: 18px; gap: 8px; }
  .meta-grid { grid-template-columns: 56px 1fr; gap: 6px 10px; font-size: 12px; }

  .mail-body iframe { min-height: 480px; }
  .mail-body .plain { padding: 14px; font-size: 12px; }

  .empty { padding: 40px 0; font-size: 13px; }
}

/* Très petits écrans */
@media (max-width: 360px) {
  .layout { padding: 0 8px; }
  .panel { padding: 12px; }
  .brand h1 { font-size: 14px; }
}