:root {
  --ink: #17212b;
  --muted: #62707f;
  --line: #d8e0e8;
  --panel: #ffffff;
  --soft: #f4f7f9;
  --accent: #0f8b8d;
  --accent-strong: #09696b;
  --warning: #c77800;
  --danger: #b42318;
  --ok: #147d45;
  --shadow: 0 18px 50px rgba(23, 33, 43, 0.12);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: #edf2f5;
  font-family: Inter, Arial, sans-serif;
}

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

button {
  cursor: pointer;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
}

.login-visual {
  position: relative;
  padding: 42px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(rgba(14, 25, 34, 0.58), rgba(14, 25, 34, 0.68)),
    url("https://images.unsplash.com/photo-1486262715619-67b85e0b08d3?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.login-visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 36%;
  background: linear-gradient(transparent, rgba(8, 18, 25, 0.82));
}

.brand-lockup {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-lockup.compact {
  margin-bottom: 26px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
}

.brand-lockup small {
  margin-top: 2px;
  color: currentColor;
  opacity: 0.72;
  font-size: 0.78rem;
}

.visual-panel {
  position: relative;
  z-index: 1;
  max-width: 620px;
  display: grid;
  gap: 18px;
}

.metric-strip,
.flow-board,
.stock-preview {
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(10, 20, 28, 0.52);
  backdrop-filter: blur(12px);
}

.metric-strip {
  width: min(100%, 360px);
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 18px;
}

.metric-strip strong {
  grid-row: span 2;
  font-size: 2rem;
}

.metric-strip small {
  color: #9be7d8;
}

.flow-board {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.flow-node {
  min-width: 108px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  text-align: center;
  background: rgba(255, 255, 255, 0.12);
  font-weight: 700;
}

.flow-node.active {
  color: #083033;
  background: #a8f0df;
}

.flow-line {
  height: 2px;
  flex: 1;
  background: rgba(255, 255, 255, 0.48);
}

.stock-preview {
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.stock-preview span {
  height: 76px;
  border-radius: 6px;
  background: linear-gradient(135deg, #e7f6f3, #6dd4c4);
}

.login-card {
  padding: 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--panel);
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  margin-top: 10px;
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  line-height: 1;
}

.login-card p {
  max-width: 440px;
  color: var(--muted);
  line-height: 1.55;
}

.form-grid {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: #344250;
  font-size: 0.88rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 139, 141, 0.14);
}

.primary-action,
.secondary-action,
.ghost-action {
  min-height: 42px;
  border: 0;
  border-radius: 7px;
  padding: 0 16px;
  font-weight: 800;
}

.primary-action {
  color: #fff;
  background: var(--accent);
}

.primary-action:hover {
  background: var(--accent-strong);
}

.secondary-action {
  color: var(--accent-strong);
  background: #dff3f0;
}

.ghost-action {
  color: var(--muted);
  background: transparent;
  text-align: left;
}

.form-message {
  min-height: 22px;
  margin: 0;
  font-weight: 700;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 282px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: #fff;
}

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

.module-button {
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 7px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  color: #344250;
  background: transparent;
  font-weight: 800;
  text-align: left;
}

.module-button.active {
  color: #fff;
  background: var(--ink);
}

#logoutButton {
  margin-top: auto;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

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

.topbar h2 {
  margin-top: 5px;
  font-size: 1.8rem;
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.submodule-tabs {
  display: flex;
  gap: 8px;
  margin: 0 0 18px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.submodule-tab {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 16px;
  color: #344250;
  background: #fff;
  font-weight: 800;
  white-space: nowrap;
}

.submodule-tab.active {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.stat-card,
.editor-panel,
.table-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(23, 33, 43, 0.05);
}

.stat-card {
  padding: 16px;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.stat-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.8rem;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.editor-panel {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.editor-panel h3 {
  font-size: 1.05rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.table-panel {
  min-width: 0;
  overflow: hidden;
}

.table-toolbar {
  padding: 14px;
  display: grid;
  grid-template-columns: 1fr 190px;
  gap: 10px;
  border-bottom: 1px solid var(--line);
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: #465565;
  background: var(--soft);
  font-size: 0.76rem;
  text-transform: uppercase;
}

td {
  color: #2e3945;
  font-size: 0.9rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 0 10px;
  color: #134e4a;
  background: #dff3f0;
  font-size: 0.78rem;
  font-weight: 800;
}

.row-actions {
  display: flex;
  gap: 8px;
}

.row-actions button {
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  font-size: 0.8rem;
  font-weight: 800;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  max-width: min(420px, calc(100vw - 44px));
  padding: 13px 15px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .login-shell,
  .app-shell,
  .content-layout {
    grid-template-columns: 1fr;
  }

  .login-visual {
    min-height: 430px;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .module-nav {
    grid-template-columns: repeat(3, 1fr);
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .login-card,
  .login-visual,
  .workspace,
  .sidebar {
    padding: 20px;
  }

  .login-visual {
    min-height: 360px;
  }

  .flow-board,
  .topbar,
  .topbar-actions,
  .form-row {
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .flow-board,
  .topbar,
  .topbar-actions {
    align-items: stretch;
  }

  .flow-line {
    display: none;
  }

  .module-nav,
  .dashboard-grid,
  .table-toolbar {
    grid-template-columns: 1fr;
  }
}