:root {
  --bg: #f4f6fb;
  --sidebar: #0f172a;
  --sidebar-soft: #16213d;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --line: #d9e0ec;
  --line-strong: #c4cedf;
  --ink: #162033;
  --muted: #65748b;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --success: #138a5d;
  --warning: #bd7a16;
  --danger: #c0393c;
  --shadow-lg: 0 28px 60px rgba(15, 23, 42, 0.12);
  --shadow-md: 0 12px 28px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.1), transparent 24%),
    linear-gradient(180deg, #f8faff 0%, #eef3fb 100%);
}

body.modal-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
input,
select,
textarea {
  border-radius: 16px;
  border: 1px solid var(--line);
}

input,
select,
textarea {
  width: 100%;
  padding: 13px 14px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

button {
  cursor: pointer;
  padding: 13px 18px;
  border: 0;
  color: #fff;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-dark) 100%);
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.18);
}

button:hover {
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

.ghost {
  color: var(--accent);
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.16);
  box-shadow: none;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.muted {
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.surface {
  background: var(--surface);
  border: 1px solid rgba(217, 224, 236, 0.88);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.soft-surface {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(148, 163, 184, 0.12);
  box-shadow: none;
}

.surface-title {
  margin: 0;
  font-size: 1.12rem;
}

.surface-copy {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.status-sent,
.status-opened {
  background: rgba(19, 138, 93, 0.12);
  color: var(--success);
}

.status-delivered {
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent);
}

.status-failed,
.status-bounced {
  background: rgba(192, 57, 60, 0.12);
  color: var(--danger);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(380px, 460px);
}

.login-poster {
  padding: 72px 72px 56px;
  background:
    radial-gradient(circle at 10% 10%, rgba(96, 165, 250, 0.18), transparent 22%),
    linear-gradient(180deg, #f8fbff 0%, #edf3fc 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.poster-chip {
  display: inline-flex;
  align-self: start;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.login-poster h1 {
  margin: 18px 0 0;
  max-width: 11ch;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.poster-copy {
  max-width: 60ch;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.8;
}

.poster-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.poster-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(217, 224, 236, 0.86);
  box-shadow: var(--shadow-md);
}

.poster-card span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.poster-card strong {
  display: block;
  font-size: 1rem;
  line-height: 1.45;
}

.login-panel {
  padding: 40px 28px;
  background:
    linear-gradient(180deg, rgba(15, 23, 42, 0.97) 0%, rgba(21, 31, 56, 0.98) 100%);
  display: grid;
  align-items: center;
}

.form-surface {
  padding: 30px;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
}

.sidebar {
  padding: 28px 20px 24px;
  background:
    linear-gradient(180deg, var(--sidebar) 0%, #101828 100%);
  color: rgba(255, 255, 255, 0.96);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(180deg, #60a5fa 0%, #2563eb 100%);
  color: white;
  font-weight: 800;
}

.sidebar-brand strong {
  display: block;
  font-size: 1rem;
}

.sidebar-brand span {
  display: block;
  margin-top: 3px;
  color: rgba(226, 232, 240, 0.7);
  font-size: 0.88rem;
}

.sidebar-nav {
  display: grid;
  gap: 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 14px;
  text-decoration: none;
  border-radius: 16px;
  color: rgba(226, 232, 240, 0.82);
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.nav-link:hover {
  background: rgba(148, 163, 184, 0.1);
  color: #fff;
}

.nav-link.current {
  background: rgba(37, 99, 235, 0.2);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(96, 165, 250, 0.16);
}

.sidebar-note {
  padding: 18px;
  margin-top: auto;
}

.sidebar-note-label {
  display: block;
  margin-bottom: 8px;
  color: rgba(191, 219, 254, 0.78);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.sidebar-note strong {
  display: block;
  margin-bottom: 8px;
}

.sidebar-note .muted {
  color: rgba(226, 232, 240, 0.72);
  line-height: 1.6;
}

.sidebar-logout {
  width: 100%;
  justify-content: center;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

.workspace {
  padding: 26px;
}

.workspace-topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 22px;
}

.app-title {
  margin: 0;
  max-width: none;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.archive-grid {
  grid-template-columns: 1fr;
}

.profile-workspace {
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
}

.debug-workspace {
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
}

.profile-stack,
.archive-stack {
  display: grid;
  gap: 18px;
}

.archive-stack {
  grid-template-columns: 1fr;
  align-items: stretch;
}

.filters-surface,
.archive-surface,
.detail-surface,
.settings-surface {
  padding: 22px;
}

.profile-stack > .surface {
  padding: 22px;
}

.filters-inline {
  padding: 18px 22px;
  margin-bottom: 18px;
}

.search {
  display: grid;
  gap: 12px;
}

.search-inline {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: end;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  grid-column: 1 / -1;
}

.summary-item {
  padding: 18px 20px;
  background: var(--surface-strong);
  border: 1px solid rgba(217, 224, 236, 0.9);
  border-radius: 22px;
  box-shadow: var(--shadow-md);
}

.summary-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.summary-item strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.group-list {
  display: grid;
  gap: 14px;
}

.archive-surface {
  min-width: 0;
}

.group-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(217, 224, 236, 0.92);
  border-radius: 22px;
}

.group-card summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
}

.group-card summary::-webkit-details-marker {
  display: none;
}

.group-card[open] summary {
  background: rgba(37, 99, 235, 0.04);
}

.group-head {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.1fr);
  gap: 16px;
  align-items: start;
}

.group-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.group-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.group-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #f1f5ff;
  border: 1px solid rgba(196, 206, 223, 0.8);
}

.group-stats {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.mini-stat {
  min-width: 84px;
  text-align: right;
}

.mini-stat strong {
  display: block;
  font-size: 1.32rem;
}

.mini-stat span {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.group-body {
  padding: 0 20px 18px;
}

.group-table {
  width: 100%;
  border-collapse: collapse;
}

.group-table th,
.group-table td {
  text-align: left;
  padding: 12px 10px;
  border-top: 1px solid rgba(217, 224, 236, 0.88);
  font-size: 0.92rem;
}

.group-table th {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.group-table tbody tr {
  cursor: pointer;
}

.group-table tbody tr:hover {
  background: rgba(37, 99, 235, 0.04);
}

.recipient-line {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.recipient-line small {
  color: var(--muted);
}

.table-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.detail-box {
  min-height: 220px;
  margin: 0;
  padding: 18px;
  background: #0f172a;
  color: #dbe6ff;
  border: 1px solid #1f2b44;
  border-radius: 18px;
  overflow: auto;
  white-space: pre-wrap;
  font-size: 0.88rem;
  line-height: 1.6;
}

.danger-button {
  color: var(--danger);
  background: rgba(192, 57, 60, 0.08);
  border: 1px solid rgba(192, 57, 60, 0.16);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.58);
  backdrop-filter: blur(4px);
}

.modal-panel {
  position: relative;
  width: min(880px, 100%);
  max-height: min(84vh, 920px);
  overflow: auto;
  padding: 24px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(217, 224, 236, 0.95);
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
}

.detail-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.detail-item {
  padding: 14px 16px;
  border-radius: 18px;
  background: #f8fbff;
  border: 1px solid rgba(217, 224, 236, 0.92);
}

.detail-item span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.detail-item strong {
  display: block;
  line-height: 1.45;
}

.content-preview {
  margin-bottom: 18px;
}

.content-frame,
.content-text,
.content-empty {
  width: 100%;
  min-height: 280px;
  border-radius: 18px;
  border: 1px solid rgba(217, 224, 236, 0.92);
  background: #ffffff;
}

.content-frame {
  height: 420px;
}

.content-text,
.content-empty {
  padding: 18px;
}

.content-text {
  white-space: pre-wrap;
  overflow: auto;
}

.content-empty {
  color: var(--muted);
  line-height: 1.7;
}

.technical-details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.profile-box {
  display: grid;
  gap: 10px;
}

.profile-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(217, 224, 236, 0.88);
}

.profile-line span {
  color: var(--muted);
}

.settings-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

.debug-form {
  display: grid;
  gap: 14px;
}

.settings-form h3 {
  grid-column: 1 / -1;
  margin: 12px 0 0;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.settings-form button,
.settings-form .muted {
  grid-column: 1 / -1;
}

@media (max-width: 1120px) {
  .workspace-grid,
  .profile-workspace,
  .summary-strip,
  .archive-stack,
  .search-inline,
  .poster-grid,
  .detail-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .login-shell,
  .app-shell {
    grid-template-columns: 1fr;
  }

  .login-poster,
  .login-panel,
  .workspace {
    padding: 22px;
  }

  .sidebar {
    gap: 18px;
  }

  .sidebar-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workspace-topbar,
  .section-head,
  .group-head {
    grid-template-columns: 1fr;
    display: grid;
  }

  .group-stats {
    justify-content: flex-start;
  }

  .mini-stat {
    text-align: left;
  }
}

@media (max-width: 720px) {
  .settings-form {
    grid-template-columns: 1fr;
  }

  .group-table th:nth-child(3),
  .group-table td:nth-child(3) {
    display: none;
  }

  .app-title,
  .login-poster h1 {
    max-width: none;
  }
}