/*
 * style.css
 * Porkipine Farm — Dashboard styles (BEM naming, mobile-first).
 */

/* ── Reset ──────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Base ───────────────────────────────────── */
:root {
  --color-primary: #2d6a4f;
  --color-primary-light: #40916c;
  --color-primary-subtle: #d8f3dc;
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-text: #1b1b1b;
  --color-text-muted: #6c757d;
  --color-border: #e2e8f0;
  --color-danger: #dc3545;
  --color-danger-bg: #fff0f0;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-success: #28a745;
  --color-success-bg: #f0fdf4;
  --color-info: #3b82f6;
  --color-info-bg: #eff6ff;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --transition: 0.2s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

/* ── Header ─────────────────────────────────── */
.header {
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.header__nav {
  display: flex;
  gap: 0.25rem;
}

.nav__btn {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all var(--transition);
}

.nav__btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav__btn--active {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* ── Main ───────────────────────────────────── */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* ── Header user area ───────────────────────── */
.header__user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header__username {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
}

.nav__btn--logout {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
}

.nav__btn--logout:hover {
  color: #fff;
  background: rgba(220, 53, 69, 0.5);
}

/* ── Login page ─────────────────────────────── */
.body--login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}

.login {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}

.login__card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem;
}

.login__title {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.login__subtitle {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.login__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form__label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
}

.form__input {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: border-color 0.15s;
  background: var(--color-surface);
}

.form__input:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

.login__error {
  color: var(--color-danger);
  font-size: 0.8125rem;
  background: var(--color-danger-bg);
  border: 1px solid #f5c2c7;
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
}

.login__btn {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}

.login__btn:hover {
  background: var(--color-primary-light);
}

.login__btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Section headers ────────────────────────── */
.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.section__subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

/* ── KPI Cards ──────────────────────────────── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.kpi-card__label {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.kpi-card__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.kpi-card__detail {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.kpi-card--alert .kpi-card__value {
  color: var(--color-danger);
}

.kpi-card--success .kpi-card__value {
  color: var(--color-success);
}

/* ── Panels (side-by-side content blocks) ──── */
.panel-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.panel__header {
  padding: 1rem 1.25rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel__title {
  font-size: 0.875rem;
  font-weight: 600;
}

.panel__body {
  padding: 0;
}

.panel__body--padded {
  padding: 1.25rem;
}

/* ── Data tables ────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.data-table th {
  text-align: left;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.data-table td {
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

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

.data-table tr:hover {
  background: rgba(45, 106, 79, 0.02);
}

.data-table__empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

/* ── Badges ─────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge--success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge--warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge--danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.badge--info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge--neutral {
  background: var(--color-bg);
  color: var(--color-text-muted);
}

/* ── Pig cards ──────────────────────────────── */
.pig-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.pig-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
}

.pig-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.pig-card--selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(45, 106, 79, 0.2);
}

.pig-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.pig-card__name {
  font-size: 1rem;
  font-weight: 600;
}

.pig-card__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.375rem 1rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.pig-card__meta-label {
  color: var(--color-text-muted);
}

.pig-card__meta-value {
  color: var(--color-text);
  font-weight: 500;
}

/* ── Pig detail / drill-down ────────────────── */
.pig-detail {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.pig-detail__header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pig-detail__name {
  font-size: 1.125rem;
  font-weight: 600;
}

.pig-detail__actions {
  display: flex;
  gap: 0.5rem;
}

.pig-detail__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--color-border);
}

.pig-stat {
  padding: 1rem 1.25rem;
  text-align: center;
  border-right: 1px solid var(--color-border);
}

.pig-stat:last-child {
  border-right: none;
}

.pig-stat__value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.pig-stat__label {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.125rem;
}

/* ── Alert list ─────────────────────────────── */
.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.alert-item:last-child {
  border-bottom: none;
}

.alert-item__indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 0.375rem;
  flex-shrink: 0;
}

.alert-item__indicator--red {
  background: var(--color-danger);
}

.alert-item__indicator--yellow {
  background: var(--color-warning);
}

.alert-item__indicator--inspection {
  background: var(--color-info);
}

.alert-item__content {
  flex: 1;
  min-width: 0;
}

.alert-item__pig {
  font-size: 0.8125rem;
  font-weight: 600;
}

.alert-item__message {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

.alert-item__time {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.alert-item__action {
  flex-shrink: 0;
  align-self: center;
}

/* ── Controls ───────────────────────────────── */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.control-group {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.control-group__title {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 0.875rem 1.25rem 0.5rem;
}

.control-group__buttons {
  padding: 0.5rem 1.25rem 1.25rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ── Buttons ────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn--primary:hover:not(:disabled) {
  background: var(--color-primary-light);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover:not(:disabled) {
  background: var(--color-bg);
}

.btn--danger {
  background: var(--color-danger);
  color: #fff;
}

.btn--danger:hover:not(:disabled) {
  background: #c82333;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 0.375rem 0.625rem;
}

.btn--ghost:hover:not(:disabled) {
  color: var(--color-text);
  background: var(--color-bg);
}

.btn--sm {
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
}

.btn--control {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
  padding: 0.625rem 1.25rem;
  font-weight: 500;
  flex: 1;
  min-width: 0;
}

.btn--control:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.btn--control--active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

/* ── Toast notifications ────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--color-text);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  animation: toast-in 0.25s ease;
  max-width: 360px;
}

.toast--success {
  background: var(--color-success);
}

.toast--error {
  background: var(--color-danger);
}

.toast--warning {
  background: var(--color-warning);
  color: var(--color-text);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(0.5rem); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(0.5rem); }
}

/* ── Empty state ────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--color-text-muted);
}

.empty-state__icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  opacity: 0.4;
}

.empty-state__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.empty-state__message {
  font-size: 0.8125rem;
}

/* ── Restricted access ──────────────────────── */
.restricted {
  text-align: center;
  padding: 4rem 1.5rem;
}

.restricted__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.restricted__message {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ── Modal / Form overlay ───────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 480px;
  margin: 1rem;
}

.modal__header {
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal__title {
  font-size: 1rem;
  font-weight: 600;
}

.modal__body {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.modal__footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ── Utility ────────────────────────────────── */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

.text-mono {
  font-family: 'SF Mono', SFMono-Regular, Consolas, monospace;
  font-size: 0.8125em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 768px) {
  .header {
    padding: 0.625rem 1rem;
  }

  .header__nav {
    order: 3;
    width: 100%;
  }

  .nav__btn {
    flex: 1;
    text-align: center;
    font-size: 0.75rem;
    padding: 0.375rem;
  }

  .main {
    padding: 1rem 0.75rem;
  }

  .kpi-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .kpi-card__value {
    font-size: 1.375rem;
  }

  .panel-row {
    grid-template-columns: 1fr;
  }

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

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

  .pig-stat:nth-child(2) {
    border-right: none;
  }

  .pig-stat:nth-child(-n+2) {
    border-bottom: 1px solid var(--color-border);
  }

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

  .data-table {
    font-size: 0.75rem;
  }

  .data-table th,
  .data-table td {
    padding: 0.5rem 0.625rem;
  }

  .modal {
    max-width: none;
    margin: 0.5rem;
  }
}

@media (max-width: 480px) {
  .kpi-row {
    grid-template-columns: 1fr;
  }

  .pig-detail__stats {
    grid-template-columns: 1fr;
  }

  .pig-stat {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .pig-stat:last-child {
    border-bottom: none;
  }
}