:root {
  /* Font & scale */
  --font-sans: 'Nunito', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans";
  --fs-300: 0.8125rem;
  --fs-400: 0.9375rem;
  --fs-500: 1.125rem;
  --fs-600: 1.25rem;
  --fs-700: 1.5rem;
  --fs-800: 1.75rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;

  /* Spacing */
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;

  /* Colors (light) */
  --c-bg: #ffffff;
  --c-surface: #fafbfc;
  --c-surface-strong: #eef1f6;
  --c-text: #0f172a;
  --c-muted: #6b7280;
  --c-border: #e5e7eb;
  --c-border-strong: #d1d5db;

  --c-primary: #2563eb;
  --c-primary-contrast: #ffffff;

  --c-success: #16a34a;
  --c-danger: #dc2626;
  --c-warning: #d97706;
  --c-info: #0284c7;

  /* Shadows */
  --shadow-1: 0 1px 2px rgba(16,24,40,.06);
  --shadow-2: 0 2px 6px rgba(16,24,40,.06);

  /* Layout */
  --sidebar-width: 280px;
  --gutter-x: var(--space-6);
  --container-max: 1680px;
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font: 400 var(--fs-400)/1.5 var(--font-sans);
}

* { box-sizing: border-box; }

.app { min-height: 100vh; }

/* Sidebar */
.app__aside {
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: var(--space-6) var(--gutter-x);
  font-weight: 700;
  font-size: var(--fs-600);
  color: var(--c-primary);
  text-decoration: none;
}

.menu {
  padding: 0 var(--gutter-x) var(--space-6);
}

.menu__section {
  margin: var(--space-6) var(--space-2) var(--space-2);
  color: var(--c-muted);
  font-size: var(--fs-300);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.menu__item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem .75rem;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-sm);
  transition: background .15s;
}

.menu__item:hover {
  background: #eef2ff;
}

.menu__item.is-active {
  background: #e8edff;
  border: 1px solid #dbe3ff;
  color: var(--c-primary);
}

/* Main */
.app__main {
  display: flex;
  flex-direction: column;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar .breadcrumbs {
  margin-left: var(--gutter-x);
}

.topbar .topbar__right {
  margin-right: var(--gutter-x);
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.breadcrumbs {
  display: flex;
  gap: .6rem;
  align-items: center;
  color: var(--c-muted);
  font-size: 0.75rem;
}

.breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.breadcrumbs .sep {
  font-size: .7rem;
  opacity: .5;
  margin: 0 .2rem;
}

.page-title {
  margin: .25rem 0 0 0;
  font-size: var(--fs-800);
  color: var(--c-primary);
}

.page-head {
  margin-bottom: var(--space-6);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-6);
  flex: 1;
}

/* Cards */
.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.card__header {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--c-border);
  font-weight: 600;
  display: flex;
  gap: .6rem;
  align-items: center;
}

.card__body {
  padding: 1rem;
}

.card + .card {
  margin-top: var(--space-6);
}

/* Forms */
.form__row {
  display: grid;
  gap: var(--space-4);
}

.form__group {
  display: grid;
  gap: .4rem;
}

.form__label {
  font-weight: 600;
  font-size: var(--fs-400);
}

.form__control, .form__select, .form__textarea {
  width: 100%;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: .55rem .7rem;
  background: #fff;
  font-family: inherit;
  font-size: var(--fs-400);
}

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .7rem center;
  padding-right: 2.25rem;
}

.form__textarea {
  min-height: 180px;
  resize: vertical;
}

.form__control:focus, .form__select:focus, .form__textarea:focus {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
}

.form__hint {
  color: var(--c-muted);
  font-size: var(--fs-300);
}

/* Buttons */
.btn {
  display: inline-flex;
  gap: .5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: .55rem .9rem;
  min-height: 40px;
  background: #fff;
  color: #111;
  box-shadow: var(--shadow-1);
  text-decoration: none;
  font-size: var(--fs-400);
  line-height: 1.5;
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}

.btn:hover {
  background: var(--c-surface);
}

.btn--primary {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: var(--c-primary-contrast);
}

.btn--primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.btn--subtle {
  background: #fff;
}

.btn--danger {
  background: #fee2e2;
  border-color: #fecaca;
  color: #7f1d1d;
}

.btn--danger:hover {
  background: #fecaca;
}

.btn--icon {
  width: 40px;
  height: 40px;
  min-height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
}

.actions {
  display: flex;
  gap: .5rem;
  align-items: center;
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.table th, .table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
}

.table th {
  background: var(--c-surface);
  color: var(--c-muted);
  font-weight: 600;
  font-size: var(--fs-300);
  text-transform: uppercase;
  letter-spacing: .03em;
}

.table tbody tr {
  background: #fff;
  transition: background-color .15s ease;
}

.table tbody tr:hover {
  background: var(--c-surface);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table .ta-right {
  text-align: right;
}

.table__actions {
  display: inline-flex;
  gap: .5rem;
  align-items: center;
  white-space: nowrap;
}

.empty {
  text-align: center;
  color: var(--c-muted);
  padding: 3rem;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius-md);
  background: #fff;
}

/* Status pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .2rem .55rem;
  border-radius: 999px;
  border: 1px solid;
  font-size: var(--fs-300);
}

.pill--published, .pill--prepared {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #065f46;
}

.pill--draft {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #334155;
}

.pill--completed {
  background: #ede9fe;
  border-color: #c4b5fd;
  color: #5b21b6;
}

.pill--archived {
  background: #fef3c7;
  border-color: #fde68a;
  color: #92400e;
}

/* User menu */
.user-menu {
  position: relative;
}

.user-menu__trigger {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .7rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--fs-400);
}

.user-menu__trigger:hover {
  background: var(--c-surface);
}

.user-menu__dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + .25rem);
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-2);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
  z-index: 100;
}

.user-menu:hover .user-menu__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-menu__header {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--c-border);
}

.user-menu__name {
  font-weight: 600;
  display: block;
}

.user-menu__email {
  font-size: var(--fs-300);
  color: var(--c-muted);
}

.user-menu__item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .6rem 1rem;
  text-decoration: none;
  color: inherit;
  transition: background .15s;
}

.user-menu__item:hover {
  background: var(--c-surface);
}

.user-menu__item--danger {
  color: var(--c-danger);
}

.user-menu__item--danger:hover {
  background: #fef2f2;
}

/* Toast */
.toasts {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column-reverse;
  gap: .5rem;
  z-index: 1100;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  background: #fff;
  color: var(--c-text);
  padding: .85rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px rgba(16,24,40,.12), 0 1px 3px rgba(16,24,40,.08);
  border: 1px solid var(--c-border-strong);
  min-width: 280px;
  max-width: 420px;
  overflow: hidden;
  pointer-events: auto;
}

.toast__icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  font-size: .875rem;
}

.toast--success {
  border-left: 4px solid var(--c-success);
}

.toast--success .toast__icon {
  color: var(--c-success);
  background: rgba(22,163,74,.1);
}

.toast--error {
  border-left: 4px solid var(--c-danger);
}

.toast--error .toast__icon {
  color: var(--c-danger);
  background: rgba(220,38,38,.1);
}

.toast--info {
  border-left: 4px solid var(--c-info);
}

.toast--info .toast__icon {
  color: var(--c-info);
  background: rgba(2,132,199,.1);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(12px) scale(.95);
  }
}

.toast--enter {
  animation: toast-in .22s cubic-bezier(.175,.885,.32,1.1) forwards;
}

.toast--leave {
  animation: toast-out .18s ease-in forwards;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  color: var(--c-muted);
  font-size: var(--fs-300);
  border-top: 1px solid var(--c-border);
  background: var(--c-surface);
  margin-top: var(--space-8);
}

/* Two-column form */
.grid-form {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .grid-form {
    grid-template-columns: 1fr;
  }
}

.sticky {
  position: sticky;
  top: calc(64px + var(--space-6));
}

/* Responsive */
@media (max-width: 1024px) {
  .app__aside {
    transform: translateX(-100%);
    transition: transform .3s;
  }
  
  .app__aside.is-open {
    transform: translateX(0);
  }
  
  .app__main {
    margin-left: 0;
  }
  
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 99;
    display: none;
  }
  
  .sidebar-overlay.is-visible {
    display: block;
  }
}