:root {
  --bg: #ffffff;
  --bg-subtle: #f7f7f8;
  --surface: #ffffff;
  --sidebar: #f7f7f8;
  --ink: #0b0b0c;
  --ink-2: #1d1d1f;
  --muted: #5b5b60;
  --muted-2: #8a8a90;
  --line: rgba(15, 15, 17, 0.08);
  --line-strong: rgba(15, 15, 17, 0.14);
  --red: #dd0000;
  --red-deep: #b40000;
  --red-wash: rgba(221, 0, 0, 0.09);
  --yellow: #ffcc00;
  --blue: #2e6bdb;
  --blue-wash: #eef3fc;
  --green: #0f8a5f;
  --green-wash: #e8f7f1;
  --amber: #b45309;
  --amber-wash: #fff4e6;
  --purple: #6d4ad3;
  --purple-wash: #f3effc;
  --gray-wash: #f7f7f8;
  --shadow-sm: 0 1px 2px rgba(12, 12, 14, 0.05);
  --shadow: 0 18px 40px -24px rgba(12, 12, 14, 0.28);
  --shadow-md: 0 40px 80px -32px rgba(12, 12, 14, 0.30);
  --r: 12px;
  --r-sm: 8px;
  --r-lg: 18px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --sidebar-w: 232px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--yellow); color: #1d1d1f; }
img { max-width: 100%; display: block; }

button, input, select, textarea { font-family: inherit; font-size: 14px; }
a { color: inherit; }

/* Website-style select (replaces the browser default control) */
select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235b5b60' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 15px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 8px 32px 8px 11px;
  color: var(--ink);
  cursor: pointer;
  outline: none;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
select:hover { border-color: #b7bdc9; }
select:focus { border-color: #c4c9d4; box-shadow: 0 0 0 3px rgba(36, 50, 70, 0.06); }
.field select { padding-right: 34px; }
.composer select { width: 100%; margin-bottom: 8px; }

/* ---------- Login ---------- */
.login-page {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  background:
    radial-gradient(900px 420px at 50% -8%, rgba(221, 0, 0, 0.07), transparent 58%),
    var(--bg-subtle);
}
.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: 36px 32px 28px;
}
.login-logo {
  height: 36px;
  width: auto;
  margin-bottom: 22px;
}
.login-card h1 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: -0.03em;
}
.login-card p.sub {
  margin: 0 0 24px;
  color: var(--muted);
}
.login-hint {
  margin-top: 18px;
  padding: 12px 14px;
  background: var(--gray-wash);
  border-radius: 10px;
  color: var(--muted);
  font-size: 12.5px;
}
.login-hint strong { color: var(--ink-2); }

/* ---------- App shell ---------- */
.app {
  height: 100%;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 68px 1fr;
  grid-template-areas:
    "top top"
    "side main";
}
.sidebar {
  grid-area: side;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
}
.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}
.brand-lockup img {
  height: 34px;
  width: auto;
}
.brand-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  border: 1px solid var(--line);
  background: var(--bg-subtle);
  border-radius: 999px;
  padding: 3px 9px;
  letter-spacing: -0.01em;
}

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav button {
  display: flex; align-items: center; gap: 10px;
  width: 100%;
  border: 0; background: transparent;
  color: var(--ink-2);
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
}
.nav button svg { width: 18px; height: 18px; color: var(--muted); flex: 0 0 auto; }
.nav button:hover { background: #eef0f3; }
.nav button.active { background: #fff; box-shadow: 0 0 0 1px var(--line); font-weight: 600; }
.nav button.active svg { color: var(--red); }
.nav-label { margin: 16px 10px 6px; font-size: 11px; color: var(--muted-2); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }

.sidebar { min-width: 0; overflow: hidden; }
.side-user {
  margin-top: auto;
  padding: 10px;
  display: flex; align-items: center; gap: 10px;
  min-width: 0;
}
.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #e8edf5; color: #334155;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 650;
  flex: 0 0 auto;
}
.avatar.red { background: var(--red-wash); color: var(--red-deep); }
.side-user .meta { min-width: 0; flex: 1; overflow: hidden; }
.side-user .meta strong, .who strong { display: block; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-user .meta span, .who span { display: block; font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.topbar {
  grid-area: top;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; gap: 16px;
}
.panel-switch {
  display: flex; background: var(--gray-wash); padding: 3px; border-radius: 10px;
}
.panel-switch a {
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px; font-weight: 550;
  color: var(--muted);
}
.panel-switch a.active {
  background: #fff; color: var(--ink);
  box-shadow: 0 1px 2px rgba(16,24,40,.08);
}
.top-actions { display: flex; align-items: center; gap: 10px; }
.top-actions .link { color: var(--muted); font-size: 13px; font-weight: 550; text-decoration: none; }
.top-actions .link:hover { color: var(--ink); }
.who { text-align: right; }
.main { grid-area: main; overflow: hidden; min-width: 0; }

/* ---------- Shared controls ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid transparent;
  background: var(--red);
  color: #fff;
  border-radius: var(--r-sm);
  padding: 8px 14px;
  font-weight: 560;
  cursor: pointer;
  box-shadow: 0 8px 20px -10px rgba(221, 0, 0, 0.6);
  transition: transform 0.22s var(--ease), background 0.22s var(--ease);
}
.btn svg { width: 16px; height: 16px; flex: 0 0 auto; }
.btn:hover { background: #c60000; transform: translateY(-1px); }
.btn.secondary {
  background: #fff; color: var(--ink); border-color: var(--line-strong);
  box-shadow: none;
}
.btn.secondary:hover { background: #fff; border-color: var(--ink); transform: none; }
.btn.ghost { background: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--gray-wash); }
.btn.danger { background: #fff; color: #b42318; border-color: #f5c2c0; }
.btn.danger:hover { background: #fef3f2; }
.btn.sm { padding: 6px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.field input, .field select, .field textarea {
  border: 1px solid var(--line-strong);
  background: #fff;
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--ink);
  outline: none;
  width: 100%;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: #c4c9d4;
  box-shadow: 0 0 0 3px rgba(36, 50, 70, 0.06);
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

.pill {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px; font-weight: 600;
  white-space: nowrap;
}
.pill.unread, .pill.new { background: var(--blue-wash); color: var(--blue); }
.pill.replied, .pill.contacted, .pill.in_progress { background: var(--amber-wash); color: var(--amber); }
.pill.closed, .pill.lost { background: var(--gray-wash); color: #475467; }
.pill.waiting { background: #f4ebff; color: var(--purple); }
.pill.resolved, .pill.won, .pill.qualified { background: var(--green-wash); color: var(--green); }
.pill.high, .pill.urgent { background: var(--red-wash); color: var(--red-deep); }
.pill.low, .pill.normal { background: var(--gray-wash); color: #475467; }
.pill.role { background: var(--red-wash); color: var(--red-deep); }
.pill.role.agent { background: var(--blue-wash); color: var(--blue); }
.pill.assigned, .pill.active { background: var(--blue-wash); color: var(--blue); }
.pill.submitted, .pill.in_use { background: var(--amber-wash); color: var(--amber); }
.pill.passed { background: var(--green-wash); color: var(--green); }
.pill.failed, .pill.expired, .pill.refunded { background: var(--red-wash); color: var(--red-deep); }

.search {
  display: flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 8px; padding: 7px 10px; min-width: 220px;
}
.search input { border: 0; outline: 0; width: 100%; background: transparent; }
.filters { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- Workspace views ---------- */
.view { height: 100%; display: flex; flex-direction: column; }
.view-head {
  padding: 16px 20px 12px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.view-head h2 { margin: 0; font-size: 18px; letter-spacing: -0.03em; }
.view-head p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.home {
  padding: 20px 24px 32px;
  overflow: auto;
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 16px 16px 14px;
}
.stat span { color: var(--muted); font-size: 12.5px; }
.stat strong { display: block; margin-top: 6px; font-size: 26px; letter-spacing: -0.04em; }
.cards-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}
.panel h3 {
  margin: 0; padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.row-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.row-item:last-child { border-bottom: 0; }
.row-item:hover { background: #fafbfc; }
.row-item .grow { min-width: 0; flex: 1; }
.row-item .grow strong, .clip { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: block; }
.row-item small { color: var(--muted); }

.split {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 320px 1fr 300px;
  border-top: 1px solid var(--line);
}
.split.two { grid-template-columns: 360px 1fr; }
.list-pane, .thread-pane, .meta-pane {
  overflow: auto; background: var(--surface);
}
.list-pane { border-right: 1px solid var(--line); }
.meta-pane { border-left: 1px solid var(--line); background: #fbfcfd; padding: 16px; }
.list-toolbar { padding: 10px 12px; border-bottom: 1px solid var(--line); display: flex; gap: 8px; }

.conv {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.conv:hover { background: #fafbfc; }
.conv.active { background: var(--blue-wash); }
.conv-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 2px; }
.conv-top strong { font-size: 13.5px; }
.conv-top time { color: var(--muted-2); font-size: 12px; }
.conv .preview { color: var(--muted); font-size: 12.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.unread-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); display: inline-block; margin-right: 6px; }

.thread-head {
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
}
.thread-head h3 { margin: 0 0 4px; font-size: 16px; letter-spacing: -0.02em; }
.thread-body { padding: 20px 22px 8px; display: flex; flex-direction: column; gap: 14px; }
.bubble {
  max-width: 78%;
  background: #f3f5f7;
  border-radius: 14px;
  padding: 12px 14px;
}
.bubble.agent {
  align-self: flex-end;
  background: #eef4ff;
}
.bubble.internal {
  align-self: flex-end;
  background: var(--amber-wash);
  border: 1px dashed #e8c27a;
}
.sla { font-size: 11px; font-weight: 600; color: var(--amber); }
.sla.over { color: var(--red-deep); }
.note-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--amber); }
.bubble .who-line { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 6px; font-size: 12px; color: var(--muted); }
.bubble .who-line strong { color: var(--ink-2); }
.bubble p { margin: 0; white-space: pre-wrap; }
.composer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding: 12px 16px 16px;
  background: #fff;
}
.composer textarea {
  width: 100%; min-height: 88px; resize: vertical;
  border: 1px solid var(--line-strong); border-radius: 10px;
  padding: 10px 12px; outline: none;
}
.composer-bar { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; gap: 10px; }
.empty {
  height: 100%;
  display: grid; place-items: center;
  color: var(--muted);
  text-align: center; padding: 32px;
}
.empty strong { display: block; color: var(--ink-2); margin-bottom: 4px; }

.meta-block { margin-bottom: 16px; }
.meta-block h4 { margin: 0 0 8px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.meta-row { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; font-size: 13px; }
.meta-row span { color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: #fafbfc; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #fafbfc; }
tr.selected { background: var(--blue-wash); }

.canned-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; padding: 0 20px 24px; }
.canned-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 14px;
}
.canned-card h4 { margin: 0 0 6px; }
.canned-card p { margin: 0; color: var(--muted); white-space: pre-wrap; font-size: 13px; max-height: 120px; overflow: hidden; }

/* ---------- Studio ---------- */
.studio-layout {
  height: 100%;
  display: grid;
  grid-template-columns: 280px 1fr;
}
.studio-form, .studio-list { overflow: auto; }
.studio-form { background: #fff; border-right: 1px solid var(--line); padding: 20px; }
.studio-list { padding: 20px; }
.studio-form h2 { margin: 0 0 4px; font-size: 18px; letter-spacing: -0.03em; }
.studio-form .hint { color: var(--muted); margin: 0 0 18px; }
.msg-builder { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.msg-row {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  background: #fafbfc;
}
.form-actions { display: flex; gap: 8px; flex-wrap: wrap; }
code { font-size: 12px; background: var(--bg-subtle); padding: 2px 6px; border-radius: 6px; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(11, 11, 12, 0.42);
  backdrop-filter: blur(2px);
  display: grid; place-items: center;
  z-index: 60; padding: 20px;
}
.modal {
  width: min(540px, 100%);
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  padding: 22px 24px 18px;
  max-height: 90vh; overflow: auto;
}
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.modal-head h3 { margin: 0 0 4px; font-size: 18px; letter-spacing: -0.02em; }
.modal-head p { margin: 0; color: var(--muted); font-size: 13px; }
.modal-close {
  border: 0; background: transparent; cursor: pointer;
  color: var(--muted); font-size: 22px; line-height: 1; padding: 2px 6px; border-radius: 8px;
}
.modal-close:hover { background: var(--gray-wash); color: var(--ink); }
.modal .form-actions { justify-content: flex-end; margin-top: 6px; }

.toast-wrap {
  position: fixed; right: 18px; bottom: 18px;
  display: flex; flex-direction: column; gap: 8px; z-index: 70;
}
.toast {
  background: #1a1d21; color: #fff;
  padding: 10px 14px; border-radius: 10px;
  box-shadow: var(--shadow-md);
  font-size: 13px;
}
.toast.error { background: #b42318; }

@media (max-width: 1100px) {
  .split { grid-template-columns: 280px 1fr; }
  .meta-pane { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
  .cards-2, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .studio-layout { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; grid-template-areas: "top" "main"; }
  .sidebar { display: none; }
  .split, .split.two { grid-template-columns: 1fr; }
  .brand-lockup img { height: 28px; }
  .site-top { padding: 0 14px; }
}