/* =========================================================================
   Big Black theme
   Custom override stylesheet for Roundcube 1.6 - skin: elastic
   Exaggerated minimalism, dark. Monochrome. Radius 3px. No gradients.
   Loaded after the stock elastic stylesheet - selectors below intentionally
   target Roundcube's own markup/ids so they win the cascade without hacks.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #0A0A0A;
  --surface: #121212;
  --surface-2: #1A1A1A;
  --surface-3: #222222;
  --border: #2A2A2A;
  --border-strong: #3F3F46;
  --text: #F5F5F5;
  --text-muted: #A1A1AA;
  --text-dim: #71717A;
  --accent: #FFFFFF;

  --radius: 3px;
  --transition: 160ms ease;

  --sidebar-w: 240px;
}

@media (min-width: 1024px) { :root { --sidebar-w: 260px; } }
@media (min-width: 1440px) { :root { --sidebar-w: 280px; } }

/* -------------------------------------------------------------------------
   Base / reset
   ------------------------------------------------------------------------- */

html, body {
  background: var(--bg) !important;
  color: var(--text) !important;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif !important;
  font-size: 15px;
}

* {
  border-radius: 0 !important;
}

a { color: var(--text); }
a:hover { color: var(--text-muted); }

::selection { background: var(--accent); color: #000; }

*:focus-visible {
  outline: 2px solid var(--accent) !important;
  outline-offset: 2px !important;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-3); border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* radius exception: dialogs/popups keep a hairline of shape but stay square per spec (3px handled below) */
input, textarea, select, button,
.btn, .button, .box, .surface, table, .table,
.popupmenu, .popover, .dialog, .ui-dialog,
#logo, img { border-radius: var(--radius) !important; }

/* -------------------------------------------------------------------------
   LOGIN PAGE
   ------------------------------------------------------------------------- */

body.task-login,
body.login {
  background: var(--bg) !important;
}

.noscriptwarning {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 16px auto;
  max-width: 460px;
  font-size: 13px;
  line-height: 1.5;
}

#layout-content.no-navbar {
  display: block !important;
  min-height: 100vh;
  background: var(--bg);
  /* explicitly NOT flex-centered on the viewport - form sits near the top */
}

.login-page {
  width: 100%;
  box-sizing: border-box;
  padding: 24px 20px;
  margin-top: 24px;
}

@media (min-width: 768px) {
  .login-page { margin-top: 40px; padding: 24px 32px; }
}

@media (min-width: 1024px) {
  .login-page { margin-top: 64px; }
}

.login-container {
  max-width: 460px;
  margin: 0 auto;
  box-sizing: border-box;
}

.login-brand {
  text-align: center;
  margin-bottom: 28px;
}

.login-brand #logo,
.login-brand img#logo {
  max-height: 40px;
  min-height: 36px;
  width: auto;
  display: inline-block;
  margin-bottom: 18px;
}

.login-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 0 0 8px 0;
  line-height: 1.15;
}

@media (min-width: 768px) {
  .login-title { font-size: 32px; }
}

.login-subtitle {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0;
}

.login-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .login-panel { padding: 32px 32px; }
}

/* Roundcube-generated login form markup */
#login-form,
.login-panel form {
  width: 100%;
}

#login-form .input-group,
.login-panel .form-group,
.login-panel .input-group,
.login-panel p {
  margin-bottom: 18px;
}

#login-form label,
.login-panel label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

#login-form input[type="text"],
#login-form input[type="password"],
#login-form select,
.login-panel input[type="text"],
.login-panel input[type="password"],
.login-panel select,
input#rcmloginuser,
input#rcmloginpwd,
select#rcmloginhost {
  display: block;
  width: 100%;
  min-height: 50px;
  box-sizing: border-box;
  background: var(--surface-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  padding: 0 14px;
  font-size: 16px; /* prevents iOS zoom on focus */
  font-family: 'Inter', sans-serif;
  transition: border-color var(--transition), background-color var(--transition);
}

#login-form input[type="text"]::placeholder,
#login-form input[type="password"]::placeholder {
  color: var(--text-dim);
}

#login-form input[type="text"]:focus,
#login-form input[type="password"]:focus,
#login-form select:focus,
.login-panel input:focus,
.login-panel select:focus {
  border-color: var(--accent) !important;
  background: var(--surface-3) !important;
  outline: none;
}

#login-form input:focus-visible,
.login-panel input:focus-visible {
  outline: 2px solid var(--accent) !important;
  outline-offset: 2px !important;
}

/* Submit button */
#login-form button[type="submit"],
#login-form input[type="submit"],
#rcmloginsubmit,
.login-panel .button.mainaction,
.login-panel button.submit {
  display: block;
  width: 100%;
  min-height: 52px;
  margin-top: 6px;
  background: var(--accent) !important;
  color: #000000 !important;
  border: 1px solid var(--accent) !important;
  border-radius: var(--radius) !important;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform 100ms ease;
}

#login-form button[type="submit"]:hover,
#login-form input[type="submit"]:hover,
#rcmloginsubmit:hover,
.login-panel .button.mainaction:hover {
  background: transparent !important;
  color: var(--accent) !important;
}

#login-form button[type="submit"]:active,
#login-form input[type="submit"]:active,
#rcmloginsubmit:active,
.login-panel .button.mainaction:active {
  transform: scale(0.985);
}

.login-note {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-dim);
}

/* -------------------------------------------------------------------------
   HEADER BAR / TOP TOOLBAR
   ------------------------------------------------------------------------- */

#layout-topbar,
.header,
#header {
  background: var(--bg) !important;
  border-bottom: 1px solid var(--border) !important;
  min-height: 52px;
  color: var(--text);
}

#taskmenu,
.header .header-title,
.header-titles {
  color: var(--text) !important;
}

#taskmenu a,
.taskbar a {
  color: var(--text-muted) !important;
  transition: color var(--transition);
}

#taskmenu a:hover,
#taskmenu a.selected,
.taskbar a.selected {
  color: var(--text) !important;
}

.searchbar input,
.searchbar .search-input,
input.search-input {
  background: var(--surface-2) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  min-height: 40px;
  font-size: 14px;
}

/* -------------------------------------------------------------------------
   SIDEBAR / FOLDER LIST
   ------------------------------------------------------------------------- */

#layout-menu,
#layout-sidebar {
  background: var(--surface) !important;
  border-right: 1px solid var(--border) !important;
}

@media (min-width: 768px) {
  #layout-sidebar { width: var(--sidebar-w) !important; }
}

#folderlist,
.folder-list {
  background: transparent;
}

#folderlist li a,
.folder-list li a {
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition);
}

#folderlist li a:hover {
  background: var(--surface-2);
  color: var(--text);
}

#folderlist li.selected > a,
#folderlist li.unread > a {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 600;
}

/* -------------------------------------------------------------------------
   MESSAGE LIST
   ------------------------------------------------------------------------- */

#layout-list,
.message-list-container {
  background: var(--bg) !important;
  border-right: 1px solid var(--border) !important;
}

table#messagelist,
table.messagelist {
  width: 100%;
  border-collapse: collapse;
}

table#messagelist thead th,
table.messagelist thead th {
  background: var(--surface);
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
}

table#messagelist tbody tr,
table.messagelist tbody tr {
  border-bottom: 1px solid var(--border);
  color: var(--text);
  transition: background-color var(--transition), color var(--transition);
}

table#messagelist tbody tr:hover,
table.messagelist tbody tr:hover {
  background: var(--surface-2);
}

table#messagelist tbody tr.selected,
table.messagelist tbody tr.selected {
  background: var(--accent) !important;
  color: #000000 !important;
}

table#messagelist tbody tr.selected td,
table.messagelist tbody tr.selected td {
  color: #000000 !important;
}

table#messagelist tbody tr.unread td.subject,
table.messagelist tbody tr.unread td.subject {
  font-weight: 700;
}

table#messagelist td.subject {
  color: var(--text);
}

table#messagelist td.date,
table#messagelist td.fromto {
  color: var(--text-muted);
}

/* -------------------------------------------------------------------------
   TOOLBAR / LISTBAR
   ------------------------------------------------------------------------- */

.toolbar,
.listbar,
#toolbar-menu {
  background: var(--bg) !important;
  border-bottom: 1px solid var(--border) !important;
}

.toolbar a.button,
.listbar a.button,
.toolbar button {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.toolbar a.button:hover,
.listbar a.button:hover,
.toolbar button:hover {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.toolbar a.button.disabled {
  color: var(--text-dim);
  opacity: 0.4;
}

/* -------------------------------------------------------------------------
   POPUP MENUS / DIALOGS  (shadows permitted here only)
   ------------------------------------------------------------------------- */

.popupmenu,
.popover,
.ui-dialog,
.dialog {
  background: var(--surface-2) !important;
  border: 1px solid var(--border-strong) !important;
  color: var(--text) !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
}

.popupmenu ul li a,
.popover-content a {
  color: var(--text-muted);
  transition: background-color var(--transition), color var(--transition);
}

.popupmenu ul li a:hover {
  background: var(--surface-3);
  color: var(--text);
}

.ui-dialog .ui-dialog-titlebar,
.dialog .dialog-title {
  background: var(--surface-3) !important;
  border-bottom: 1px solid var(--border);
  color: var(--text) !important;
}

.ui-widget-overlay {
  background: #000000;
  opacity: 0.7;
}

/* -------------------------------------------------------------------------
   COMPOSE SCREEN
   ------------------------------------------------------------------------- */

#compose-content,
.compose-body,
#composeview {
  background: var(--bg) !important;
  color: var(--text);
}

#compose-content input[type="text"],
#compose-content textarea,
.compose-headers input,
.compose-headers select,
#composebody {
  background: var(--surface-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  min-height: 44px;
  font-size: 16px;
  transition: border-color var(--transition), background-color var(--transition);
}

#compose-content input[type="text"]:focus,
#compose-content textarea:focus,
#composebody:focus {
  border-color: var(--accent) !important;
  background: var(--surface-3) !important;
}

#composebody {
  min-height: 300px;
}

/* -------------------------------------------------------------------------
   READING PANE
   ------------------------------------------------------------------------- */

#layout-preview,
.preview-pane {
  background: var(--bg) !important;
  border-left: 1px solid var(--border) !important;
}

.message-header,
#messageheader {
  border-bottom: 1px solid var(--border);
  padding: 16px;
  color: var(--text);
}

.message-header .subject {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.message-header .from,
.message-header .to,
.message-header .date {
  color: var(--text-muted);
  font-size: 13px;
}

.message-body,
#messagebody {
  color: var(--text);
  padding: 16px;
  line-height: 1.6;
}

.message-body a { color: var(--text); text-decoration: underline; }

/* -------------------------------------------------------------------------
   RESPONSIVE - message list column visibility
   ------------------------------------------------------------------------- */

@media (max-width: 767px) {
  table#messagelist th.attachment,
  table#messagelist td.attachment,
  table#messagelist th.size,
  table#messagelist td.size {
    display: none !important;
  }

  table#messagelist td.subject {
    width: 100% !important;
    max-width: none !important;
  }

  #login-form input[type="text"],
  #login-form input[type="password"],
  #login-form button[type="submit"],
  #rcmloginsubmit {
    min-height: 50px;
  }
}

@media (min-width: 768px) {
  table#messagelist th.attachment,
  table#messagelist td.attachment,
  table#messagelist th.size,
  table#messagelist td.size {
    display: table-cell;
  }
}

/* -------------------------------------------------------------------------
   Reduced motion
   ------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}