/* Voidmail — overlay on top of matte-theme.css
   Uses the matte palette and radius scale (no blue, monochrome only). */

* { box-sizing: border-box; }
/* Honour the hidden attribute against our display overrides. */
[hidden] { display: none !important; }
html, body {
  margin: 0; padding: 0;
  background: var(--matte-bg-base);
  color: var(--matte-text-primary);
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  overflow: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 255, 255, 0.018) 0%, transparent 60%),
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.010) 0%, transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.007) 0%, transparent 55%);
  pointer-events: none;
  z-index: -1;
}

a { color: var(--matte-text-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; }

.view { position: relative; height: 100vh; width: 100vw; }

/* ========================== Matte card ========================== */
.matte {
  background: var(--matte-bg-card);
  border: 1px solid var(--matte-border-subtle);
  border-radius: var(--matte-radius-lg);
  box-shadow: var(--matte-shadow-sm);
}

/* ========================== Buttons ========================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px;
  height: 38px; padding: 0 18px;
  border: 1px solid var(--matte-border-default);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(245, 245, 245, 0.9);
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.2px;
  font-family: 'Poppins', sans-serif;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  white-space: nowrap;
}
.btn:hover:not(:disabled) {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.10);
  border-color: var(--matte-border-hover);
  transform: translateY(-2px);
}
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.06) 100%);
  border-color: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  font-weight: 500;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.10) 100%);
  border-color: rgba(255, 255, 255, 0.28);
}
.btn-ghost {
  background: transparent;
  border-color: var(--matte-border-subtle);
}
.btn-sm { height: 32px; padding: 0 14px; font-size: 12px; border-radius: 10px; }

.btn-spinner {
  width: 12px; height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.icon-btn {
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--matte-border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--matte-text-primary);
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; line-height: 1;
  transition: all .25s ease;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--matte-border-hover); }
.icon-btn-sm { width: 26px; height: 26px; font-size: 14px; }
.icon-btn:disabled { opacity: 0.55; cursor: not-allowed; }
.icon-btn.spinning svg { animation: spin 1s linear infinite; }
.pane-header-right { display: inline-flex; align-items: center; gap: 10px; }

/* ========================== Custom context menu ========================== */
.ctx-menu {
  position: fixed;
  min-width: 200px;
  padding: 6px;
  background: rgba(15, 15, 15, 0.94);
  border: 1px solid var(--matte-border-default);
  border-radius: 12px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  z-index: 60;
  font-family: 'Poppins', inherit;
  animation: ctxIn .12s ease-out;
}
@keyframes ctxIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ctx-item {
  display: flex; align-items: center; gap: 10px;
  width: 100%;
  padding: 9px 12px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--matte-text-primary);
  font-family: inherit;
  font-size: 13px; font-weight: 400;
  text-align: left;
  cursor: pointer;
  transition: background-color .12s ease, color .12s ease;
}
.ctx-item:hover { background: rgba(255, 255, 255, 0.07); }
.ctx-item:focus-visible { outline: 1px solid rgba(143, 178, 255, 0.4); outline-offset: -1px; }
.ctx-item svg { flex-shrink: 0; color: var(--matte-text-secondary); }
.ctx-item:hover svg { color: var(--matte-text-primary); }
.ctx-item-danger:hover { background: rgba(255, 100, 100, 0.10); color: #ffc8c8; }
.ctx-item-danger:hover svg { color: #ff8080; }
.ctx-item + .ctx-item { margin-top: 1px; }
.ctx-item[hidden] { display: none !important; }

/* ========================== Notices ========================== */
.notice {
  padding: 10px 14px;
  border-radius: var(--matte-radius-sm);
  font-size: 13px;
  border: 1px solid var(--matte-border-default);
  background: rgba(255, 255, 255, 0.02);
}
.notice-error {
  color: rgba(255, 200, 200, 0.95);
  background: rgba(255, 100, 100, 0.06);
  border-color: rgba(255, 100, 100, 0.25);
}
.notice-ok {
  color: rgba(200, 255, 210, 0.95);
  background: rgba(34, 197, 94, 0.06);
  border-color: rgba(34, 197, 94, 0.25);
}

/* ========================== Login ========================== */
#login-view {
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  width: min(420px, 100%);
  padding: 36px 32px;
  background: var(--matte-bg-elevated);
  border: 1px solid var(--matte-border-default);
  border-radius: var(--matte-radius-xl);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03);
  position: relative;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 28px;
}
.brand-mark {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--matte-border-subtle);
  color: #ffffff;
}
.brand-mark svg { display: block; }
.brand-title {
  font-size: 20px; font-weight: 600; letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 0%, #8a8a8a 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  line-height: 1.1;
}

.form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span {
  font-size: 11px; color: var(--matte-text-secondary);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.field input,
.compose-rows input,
.compose-body {
  height: 44px; padding: 0 16px;
  background: var(--matte-bg-card);
  border: 1px solid var(--matte-border-default);
  border-radius: var(--matte-radius-md);
  color: var(--matte-text-primary);
  font-family: inherit; font-size: 14px;
  outline: none;
  transition: border-color .2s ease, background-color .2s ease;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.field input::placeholder,
.compose-rows input::placeholder,
.compose-body::placeholder {
  color: var(--matte-text-muted);
}
.field input:focus,
.compose-rows input:focus,
.compose-body:focus {
  border-color: var(--matte-border-hover);
  background: var(--matte-bg-hover);
}
.login-hint {
  font-size: 11px; color: var(--matte-text-muted);
  line-height: 1.6; text-align: center; margin-top: 6px;
}

/* ========================== Topbar ========================== */
#app-view { display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: rgba(8, 8, 8, 0.95);
  border-bottom: 1px solid var(--matte-border-subtle);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2; position: relative;
}
.topbar-left { display: flex; align-items: center; gap: 10px; color: #ffffff; }
.topbar-left svg { display: block; }
.topbar-title {
  font-size: 14px; font-weight: 500; letter-spacing: -0.01em;
  background: linear-gradient(180deg, #ffffff 0%, #8a8a8a 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.topbar-right { display: flex; align-items: center; gap: 10px; }
.user-chip {
  padding: 6px 14px;
  border-radius: var(--matte-radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--matte-border-subtle);
  font-size: 12px; color: var(--matte-text-primary);
}

/* ========================== Shell (3-pane) ========================== */
.shell {
  flex: 1;
  display: grid;
  grid-template-columns: 240px 380px 1fr;
  gap: 14px;
  padding: 14px;
  height: calc(100vh - 60px);
  min-height: 0;
}
.pane {
  display: flex; flex-direction: column;
  overflow: hidden;
  min-height: 0;
  background: var(--matte-bg-card);
  border: 1px solid var(--matte-border-subtle);
  border-radius: var(--matte-radius-lg);
  box-shadow: var(--matte-shadow-sm);
}
.pane-header {
  padding: 14px 18px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--matte-text-secondary);
  border-bottom: 1px solid var(--matte-border-subtle);
  display: flex; align-items: center; justify-content: space-between;
}
.pane-footer {
  padding: 10px 14px;
  border-top: 1px solid var(--matte-border-subtle);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.page-info { font-size: 11px; color: var(--matte-text-muted); }
.list-count {
  color: var(--matte-text-muted); font-size: 10px; font-weight: 400;
  text-transform: none; letter-spacing: 0;
}

/* Folders */
.folder-list {
  list-style: none; margin: 0; padding: 10px;
  overflow-y: auto; flex: 1;
}
.folder-item {
  padding: 10px 14px;
  display: flex; align-items: center; justify-content: space-between;
  border-radius: var(--matte-radius-md);
  cursor: pointer;
  color: var(--matte-text-secondary);
  font-size: 13px;
  transition: background-color .2s ease, color .2s ease;
  margin-bottom: 3px;
  border: 1px solid transparent;
}
.folder-item:hover {
  background: var(--matte-bg-hover);
  color: var(--matte-text-primary);
}
.folder-item.active {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border-color: var(--matte-border-hover);
}
.folder-item .fi-unread {
  background: rgba(255, 255, 255, 0.08);
  color: var(--matte-text-primary);
  font-size: 10px; font-weight: 500;
  padding: 2px 8px; border-radius: 999px;
}

/* Message list */
.message-list {
  overflow-y: auto; flex: 1;
  padding: 4px 0;
}
.message-item {
  padding: 13px 18px;
  border-bottom: 1px solid var(--matte-border-subtle);
  cursor: pointer;
  transition: background-color .15s ease;
  display: grid; grid-template-columns: 1fr auto; gap: 4px 12px;
  align-items: baseline;
}
.message-item:hover { background: var(--matte-bg-hover); }
.message-item.active { background: rgba(255, 255, 255, 0.04); }
.message-item.unread .mi-from,
.message-item.unread .mi-subject { color: var(--matte-text-primary); font-weight: 600; }
.mi-from {
  font-size: 13px; color: var(--matte-text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px;
}
.mi-date {
  font-size: 11px; color: var(--matte-text-muted);
  text-align: right; white-space: nowrap;
}
.mi-subject {
  grid-column: 1 / -1; font-size: 12px;
  color: var(--matte-text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mi-flag { color: #e0c070; margin-right: 4px; }

/* Reader */
.reader { display: flex; flex-direction: column; overflow: hidden; }
.reader-empty {
  margin: auto; text-align: center; padding: 24px;
  color: var(--matte-text-muted);
}
.empty-gloss {
  font-size: 16px; font-weight: 500;
  background: linear-gradient(180deg, #4a4a4a 0%, #ffffff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.empty-sub { font-size: 12px; color: var(--matte-text-muted); }

#reader-content { display: flex; flex-direction: column; min-height: 0; flex: 1; }
.reader-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--matte-border-subtle);
}
.reader-subject {
  font-size: 20px; font-weight: 600; letter-spacing: -0.01em;
  margin-bottom: 12px; color: var(--matte-text-primary);
}
.reader-meta {
  display: flex; flex-direction: column; gap: 3px;
  font-size: 12px; color: var(--matte-text-secondary);
}
.reader-meta .lbl {
  color: var(--matte-text-muted);
  display: inline-block; min-width: 38px;
}
.reader-actions {
  margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px;
}
.reader-frame {
  flex: 1;
  width: 100%; border: none;
  background: var(--matte-bg-base);
  min-height: 320px;
  border-radius: 0 0 var(--matte-radius-lg) var(--matte-radius-lg);
}
.reader-attachments {
  padding: 10px 20px;
  border-top: 1px solid var(--matte-border-subtle);
  display: flex; flex-wrap: wrap; gap: 8px;
}
.reader-attachments:empty { display: none; }
.attachment-chip {
  padding: 6px 12px; border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--matte-border-subtle);
  font-size: 12px; color: var(--matte-text-secondary);
}

/* ========================== Compose dialog ========================== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 5;
}

/* Native <dialog> is display:none by default.
   Only add our layout when [open] is set. */
.compose-dialog {
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
  color: var(--matte-text-primary);
}
.compose-dialog[open] {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(720px, 95vw);
  max-height: 88vh;
  padding: 20px;
  background: var(--matte-bg-elevated);
  border: 1px solid var(--matte-border-default);
  border-radius: var(--matte-radius-xl);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 10;
}
.compose-dialog::backdrop { background: transparent; }
.compose-header { display: flex; align-items: center; justify-content: space-between; }
.compose-title {
  font-size: 16px; font-weight: 600; letter-spacing: -0.01em;
  background: linear-gradient(180deg, #4a4a4a 0%, #ffffff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.compose-form { display: contents; }
.compose-rows { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.compose-row { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 8px; }
.compose-row span {
  font-size: 11px; color: var(--matte-text-muted);
  text-transform: uppercase; letter-spacing: 0.1em; text-align: right;
}
.compose-row input { height: 38px; }
.compose-row input:disabled { opacity: 0.7; }
.compose-body {
  flex: 1; min-height: 220px;
  padding: 14px 16px; resize: none;
  height: unset; line-height: 1.55;
}
.compose-footer {
  display: flex; justify-content: flex-end; gap: 10px;
  margin-top: 6px;
}

/* ========================== Toast ========================== */
.toast {
  position: fixed;
  bottom: 24px; left: 50%; transform: translateX(-50%);
  padding: 11px 20px;
  background: var(--matte-bg-elevated);
  border: 1px solid var(--matte-border-hover);
  border-radius: 999px;
  backdrop-filter: blur(14px);
  font-size: 12px; color: var(--matte-text-primary);
  box-shadow: var(--matte-shadow-lg);
  z-index: 20;
  animation: toastIn .25s ease;
}
.toast.ok  { border-color: rgba(34, 197, 94, 0.35); }
.toast.err { border-color: rgba(255, 100, 100, 0.35); }
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ========================== Mobile ========================== */
@media (max-width: 900px) {
  .shell {
    grid-template-columns: 1fr;
    grid-auto-rows: min-content;
    overflow-y: auto;
    height: calc(100vh - 60px);
  }
  .pane.folders, .pane.list { max-height: 40vh; }
  .pane.reader { min-height: 60vh; }
  .topbar-title { display: none; }
}