:root {
  --color-bg: #f4f7f8;
  --color-surface: #ffffff;
  --color-border: #e1e7ea;
  --color-text: #1c2b33;
  --color-text-muted: #5c7079;
  --color-primary: #0f7a72;
  --color-primary-dark: #0b5f59;
  --color-primary-light: #e4f3f1;
  --color-accent: #1d6fa5;
  --color-success: #1b8a5a;
  --color-success-bg: #e6f6ee;
  --color-danger: #c0392b;
  --color-danger-bg: #fbeae8;
  --color-warning: #b8790a;
  --color-warning-bg: #fdf3e0;
  --color-neutral-bg: #eef1f2;
  --sidebar-width: 232px;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(20, 40, 45, 0.06);
  --shadow-md: 0 4px 14px rgba(20, 40, 45, 0.08);

  /* ---- Motion tokens ---- */
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 550ms;
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---- Auth (login) page ---- */

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    115deg,
    var(--color-primary-dark),
    var(--color-primary) 30%,
    #12938a 55%,
    var(--color-accent) 78%,
    var(--color-primary-dark) 100%
  );
  background-size: 320% 320%;
  animation: authGradientShift 16s var(--ease-in-out) infinite;
  padding: 24px;
}

@keyframes authGradientShift {
  0% {
    background-position: 0% 30%;
  }
  50% {
    background-position: 100% 70%;
  }
  100% {
    background-position: 0% 30%;
  }
}

.auth-card {
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 380px;
  padding: 36px 32px;
  animation: authCardIn var(--duration-slow) var(--ease-spring) both;
}

@keyframes authCardIn {
  0% {
    opacity: 0;
    transform: scale(0.82) translateY(28px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.auth-card form > .field,
.auth-card form > button {
  animation: contentRise var(--duration-base) var(--ease-out) both;
}

.auth-card form > .field:nth-of-type(1) {
  animation-delay: 260ms;
}

.auth-card form > .field:nth-of-type(2) {
  animation-delay: 320ms;
}

.auth-card form > button {
  animation-delay: 380ms;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.auth-brand .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.auth-brand .brand-name {
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
}

.auth-subtitle {
  color: var(--color-text-muted);
  margin: 0 0 24px;
  font-size: 13px;
}

/* ---- App shell (sidebar layout) ---- */

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-primary-dark);
  color: #eaf5f3;
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  animation: sidebarSlideIn var(--duration-slow) var(--ease-out) both;
}

@keyframes sidebarSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-28px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 14px;
}

.sidebar-brand .brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.sidebar-brand .brand-text {
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.25;
}

.sidebar-brand .brand-text small {
  display: block;
  font-weight: 400;
  opacity: 0.7;
  font-size: 11px;
}

.sidebar-nav-wrap {
  flex: 1;
  position: relative;
}

.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-pill {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 0;
  opacity: 0;
  background: rgba(255, 255, 255, 0.1);
  border-left: 3px solid #6fe0d1;
  border-radius: 0 8px 8px 0;
  z-index: 0;
  pointer-events: none;
  transition: top var(--duration-base) var(--ease-spring), height var(--duration-base) var(--ease-spring),
    opacity var(--duration-fast) var(--ease-out);
}

.sidebar-nav li {
  position: relative;
  z-index: 1;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: rgba(234, 245, 243, 0.82);
  font-size: 13.5px;
  font-weight: 500;
  border-left: 3px solid transparent;
  position: relative;
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out),
    padding-left var(--duration-base) var(--ease-out);
}

.sidebar-nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  padding-left: 26px;
  text-decoration: none;
}

.sidebar-nav li.active a {
  background: rgba(255, 255, 255, 0.1);
  border-left-color: #6fe0d1;
  color: #fff;
}

.sidebar-nav .nav-icon {
  width: 16px;
  text-align: center;
  opacity: 0.9;
  transition: transform var(--duration-base) var(--ease-spring);
}

.sidebar-nav a:hover .nav-icon {
  transform: scale(1.15);
}

.sidebar-footer {
  padding: 14px 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 14px;
}

.sidebar-user {
  font-size: 12.5px;
  opacity: 0.85;
  margin-bottom: 10px;
}

.sidebar-user strong {
  display: block;
  color: #fff;
  font-size: 13px;
}

.logout-form button {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  color: #eaf5f3;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 12.5px;
  cursor: pointer;
}

.logout-form button:hover {
  background: rgba(255, 255, 255, 0.16);
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 28px;
}

.topbar h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
}

.content {
  padding: 24px 28px 48px;
  flex: 1;
}

/* ---- Content entrance cascade ---- */

.content > * {
  animation: contentRise var(--duration-base) var(--ease-out) both;
}

@keyframes contentRise {
  0% {
    opacity: 0;
    transform: translateY(16px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.content > *:nth-child(1) {
  animation-delay: 0ms;
}
.content > *:nth-child(2) {
  animation-delay: 70ms;
}
.content > *:nth-child(3) {
  animation-delay: 140ms;
}
.content > *:nth-child(4) {
  animation-delay: 210ms;
}
.content > *:nth-child(5) {
  animation-delay: 280ms;
}
.content > *:nth-child(n + 6) {
  animation-delay: 340ms;
}

/* ---- Flash messages ---- */

.flash {
  border-radius: var(--radius);
  padding: 11px 16px;
  margin-bottom: 18px;
  font-size: 13.5px;
  border: 1px solid transparent;
  max-height: 200px;
  overflow: hidden;
  animation: flashIn var(--duration-slow) var(--ease-spring) both;
  transition: opacity var(--duration-base) var(--ease-in-out), transform var(--duration-base) var(--ease-in-out),
    max-height var(--duration-base) var(--ease-in-out), margin var(--duration-base) var(--ease-in-out),
    padding var(--duration-base) var(--ease-in-out), border-width var(--duration-base) var(--ease-in-out);
}

@keyframes flashIn {
  0% {
    opacity: 0;
    transform: translateY(-18px) scale(0.96);
  }
  60% {
    opacity: 1;
    transform: translateY(2px) scale(1.005);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.flash.flash-hide {
  opacity: 0;
  transform: translateY(-14px) scale(0.97);
  max-height: 0;
  margin-bottom: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
}

.flash-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: #bfe6d2;
}

.flash-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: #f0c6c0;
}

/* ---- Cards / tiles ---- */

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  animation: tilePop var(--duration-slow) var(--ease-spring) both;
  animation-delay: calc(var(--i, 0) * 70ms + 120ms);
  transition: transform var(--duration-base) var(--ease-spring), box-shadow var(--duration-base) var(--ease-out);
}

.tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

@keyframes tilePop {
  0% {
    opacity: 0;
    transform: scale(0.75) translateY(14px);
  }
  60% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.tile .tile-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.tile .tile-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
}

.tile.tile-accent .tile-value {
  color: var(--color-primary);
}

.tile.tile-warning .tile-value {
  color: var(--color-warning);
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.panel-body {
  padding: 20px;
}

/* ---- Demand-by-city bars ---- */

.bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 48px;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  font-size: 13px;
}

.bar-track {
  background: var(--color-neutral-bg);
  border-radius: 4px;
  height: 14px;
  overflow: hidden;
}

.bar-fill {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  height: 100%;
  border-radius: 4px;
}

.bar-count {
  text-align: right;
  color: var(--color-text-muted);
}

/* ---- Tables ---- */

.table-wrap {
  overflow-x: auto;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

table.data-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--color-neutral-bg);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
  border-bottom: 1px solid var(--color-border);
}

table.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

table.data-table tbody tr {
  opacity: 0;
  animation: rowSlideIn var(--duration-base) var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 45ms);
  transition: background var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
  position: relative;
}

table.data-table tbody tr:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px) scale(1.002);
  box-shadow: var(--shadow-sm);
}

@keyframes rowSlideIn {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

table.data-table td.nowrap,
table.data-table th.nowrap {
  white-space: nowrap;
}

.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-muted);
}

/* ---- Badges ---- */

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  background: var(--color-neutral-bg);
  color: var(--color-text-muted);
  transition: transform var(--duration-fast) var(--ease-spring);
}

.badge-pulse {
  animation: badgePulse 2.4s var(--ease-in-out) infinite;
}

@keyframes badgePulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(184, 121, 10, 0.32);
  }
  50% {
    box-shadow: 0 0 0 5px rgba(184, 121, 10, 0);
  }
}

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

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

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

.badge-info {
  background: #e3f0fa;
  color: var(--color-accent);
}

/* ---- Forms ---- */

label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 5px;
}

.field {
  margin-bottom: 16px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="url"],
select,
textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--color-text);
  background: #fff;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-bar select {
  width: auto;
  min-width: 180px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  transform: translateY(0) scale(1);
  transition: transform var(--duration-fast) var(--ease-spring), box-shadow var(--duration-base) var(--ease-out),
    background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.94);
  transition-duration: var(--duration-fast);
}

.btn.is-loading {
  color: transparent !important;
  pointer-events: none;
  cursor: default;
}

.btn.is-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 15px;
  height: 15px;
  margin: -7.5px 0 0 -7.5px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btnSpin 0.6s linear infinite;
}

.btn-outline.is-loading::after,
.btn-danger.is-loading::after {
  border-color: rgba(15, 122, 114, 0.25);
  border-top-color: var(--color-primary);
}

@keyframes btnSpin {
  to {
    transform: rotate(360deg);
  }
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 8px 18px rgba(15, 122, 114, 0.32);
  text-decoration: none;
}

.btn-outline {
  background: #fff;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-danger {
  background: #fff;
  border-color: #edc3bc;
  color: var(--color-danger);
}

.btn-danger:hover {
  background: var(--color-danger-bg);
  box-shadow: 0 8px 18px rgba(192, 57, 43, 0.16);
  text-decoration: none;
}

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

.btn-success:hover {
  background: #146e48;
  box-shadow: 0 8px 18px rgba(27, 138, 90, 0.3);
  text-decoration: none;
}

.btn-sm {
  padding: 5px 11px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

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

form.inline-form {
  display: inline-block;
}

/* ---- Detail page layout ---- */

.detail-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
}

@media (max-width: 960px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.definition-list {
  display: grid;
  grid-template-columns: 160px 1fr;
  row-gap: 10px;
  column-gap: 12px;
  font-size: 13.5px;
}

.definition-list dt {
  color: var(--color-text-muted);
  font-weight: 600;
}

.definition-list dd {
  margin: 0;
}

.doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.doc-list li {
  padding: 9px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 13.5px;
}

.doc-list li:last-child {
  border-bottom: none;
}

.back-link {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.helper-text {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.form-card {
  max-width: 480px;
}

/* ---- Error page ---- */

.error-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.error-card {
  text-align: center;
  max-width: 420px;
}

.error-code {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0;
}

/* ---- Reduced motion ---- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .auth-shell {
    animation: none !important;
    background-position: 0% 30% !important;
  }

  .btn:hover,
  .tile:hover {
    transform: none !important;
  }
}