:root {
  --ink-strong: #14281d;
  --ink: #24382c;
  --ink-muted: #52665a;
  --surface: #ffffff;
  --surface-subtle: #f5f8f6;
  --surface-raised: #fbfdfc;
  --border: #cbd6cf;
  --border-strong: #91a498;
  --brand: #1a6b3c;
  --brand-dark: #124d2b;
  --brand-soft: #e9f4ed;
  --success: #17643a;
  --success-soft: #eaf7ef;
  --warning: #8a4b08;
  --warning-soft: #fff4dd;
  --danger: #a12828;
  --danger-soft: #fff0f0;
  --neutral: #667a6d;
  --focus: #006fcc;
  --series-pv: #1a6b3c;
  --series-price: #7a4595;
  --series-charge: #0b5e75;
  --series-discharge: #b3541e;
  --series-soc: #444f6b;
  --series-export: #1a6b3c;
  --series-import: #0b5e75;
  --series-curtailed: #a12828;
  --shadow: 0 10px 28px rgb(20 40 29 / 8%);
  --radius-large: 14px;
  --radius: 9px;
  --content-width: 1240px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #eaf0ec;
  font-synthesis: none;
  line-height: 1.5;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, #f8fbf9 0, #f8fbf9 380px, #eaf0ec 760px),
    #eaf0ec;
  color: var(--ink);
}

button,
input {
  font: inherit;
}

button,
input[type="file"],
summary {
  touch-action: manipulation;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
a:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--ink-strong);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid #d7e1da;
  background: rgb(255 255 255 / 94%);
  box-shadow: 0 1px 0 rgb(20 40 29 / 3%);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 40px), var(--content-width));
  min-height: 74px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-strong);
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 2px solid var(--brand);
  border-radius: 7px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

.brand strong {
  font-size: 0.98rem;
  letter-spacing: 0.01em;
}

.brand small {
  margin-top: 1px;
  color: var(--ink-muted);
  font-size: 0.76rem;
}

.environment-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.2;
}

.environment-badge span {
  color: var(--brand);
}

.page-shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding: 54px 0 70px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.75fr);
  gap: 42px;
  align-items: center;
  margin-bottom: 42px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 7px;
  color: var(--brand-dark);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  color: var(--ink-strong);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 760;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h2 {
  margin: 0;
  color: var(--ink-strong);
  font-size: 1.18rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.hero-copy {
  max-width: 780px;
  margin: 18px 0 0;
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.scope-notice {
  display: flex;
  gap: 13px;
  padding: 19px;
  border: 1px solid #9bd2ae;
  border-left: 4px solid var(--brand);
  border-radius: var(--radius);
  background: var(--brand-soft);
}

.scope-notice h2 {
  font-size: 0.94rem;
}

.scope-notice p {
  margin: 5px 0 0;
  color: #2c5840;
  font-size: 0.84rem;
}

.scope-icon {
  display: grid;
  flex: 0 0 auto;
  width: 23px;
  height: 23px;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-dark);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
}

.control-panel,
.panel,
.kpi-card,
.empty-state {
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.control-panel {
  padding: 26px;
}

.control-heading,
.panel-heading,
.results-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.control-grid {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(230px, 1fr) auto;
  gap: 28px;
  align-items: start;
  margin-top: 24px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-strong);
  font-size: 0.84rem;
  font-weight: 750;
}

input[type="file"] {
  width: 100%;
  min-height: 46px;
  padding: 9px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  background-color: #fff;
  color: var(--ink-strong);
  font-size: 0.84rem;
  cursor: pointer;
}

input[type="file"]::file-selector-button {
  margin-right: 10px;
  padding: 6px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface-subtle);
  color: var(--ink-strong);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.field-help {
  margin: 7px 0 0;
  color: var(--ink-muted);
  font-size: 0.75rem;
}

.run-actions {
  display: grid;
  gap: 10px;
  align-items: start;
  padding-top: 27px;
}

.run-actions .field-help {
  max-width: 250px;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.2;
  cursor: pointer;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:active:not(:disabled) {
  transform: translateY(0);
}

.button:disabled {
  opacity: 0.53;
  cursor: not-allowed;
}

.button-primary {
  border-color: var(--brand-dark);
  background: var(--brand-dark);
  color: #fff;
}

.button-primary:hover:not(:disabled) {
  background: #0d3a20;
}

.status-panel {
  display: flex;
  gap: 12px;
  margin-top: 22px;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-subtle);
}

.status-symbol {
  display: grid;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: var(--neutral);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 900;
}

.status-panel strong {
  color: var(--ink-strong);
  font-size: 0.84rem;
}

.status-panel p {
  margin: 2px 0 0;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.status-success {
  border-color: #acd6bd;
  background: var(--success-soft);
}

.status-success .status-symbol {
  background: var(--success);
}

.status-warning {
  border-color: #e8c47a;
  background: var(--warning-soft);
}

.status-warning .status-symbol {
  background: var(--warning);
}

.status-error {
  border-color: #e0a6a6;
  background: var(--danger-soft);
}

.status-error .status-symbol {
  background: var(--danger);
}

.status-loading .status-symbol {
  background: var(--brand);
}

.empty-state {
  margin-top: 28px;
  padding: 58px 24px;
  text-align: center;
}

.empty-state h2 {
  margin-top: 20px;
}

.empty-state p {
  max-width: 580px;
  margin: 8px auto 0;
  color: var(--ink-muted);
  font-size: 0.89rem;
}

.empty-diagram {
  display: flex;
  max-width: 390px;
  margin: 0 auto;
  align-items: center;
  justify-content: center;
  color: var(--border-strong);
}

.empty-diagram span,
.empty-diagram b {
  display: grid;
  height: 48px;
  place-items: center;
  border: 2px solid currentcolor;
  border-radius: 7px;
  font-size: 0.68rem;
}

.empty-diagram span {
  width: 58px;
}

.empty-diagram b {
  width: 80px;
}

.empty-diagram i {
  width: 62px;
  height: 2px;
  background: currentcolor;
}

.results {
  margin-top: 42px;
}

.results-heading {
  align-items: end;
  margin-bottom: 18px;
}

.result-summary {
  margin: 6px 0 0;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.kpi-card {
  min-width: 0;
  padding: 18px;
  box-shadow: 0 6px 18px rgb(20 40 29 / 5%);
}

.kpi-card::before {
  display: block;
  width: 30px;
  height: 3px;
  margin-bottom: 14px;
  border-radius: 4px;
  background: var(--brand);
  content: "";
}

.kpi-label {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.71rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kpi-value {
  margin: 6px 0 3px;
  color: var(--ink-strong);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  font-variant-numeric: tabular-nums;
  font-weight: 760;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.kpi-context {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.7rem;
}

.panel {
  margin-top: 18px;
  padding: 23px;
}

.panel-heading {
  align-items: center;
}

.chart-figure {
  margin: 20px 0 0;
}

.chart-frame {
  overflow-x: auto;
  border: 1px solid #dbe4de;
  border-radius: var(--radius);
  background: var(--surface-raised);
}

.chart-svg {
  display: block;
  width: 100%;
  min-width: 660px;
  height: auto;
}

.chart-axis-line {
  stroke: var(--border-strong);
  stroke-width: 1;
}

.chart-grid-line {
  stroke: #e4ebe6;
  stroke-width: 1;
}

.chart-zero-line {
  stroke: var(--border-strong);
  stroke-width: 1.5;
  stroke-dasharray: 3 3;
}

.chart-tick-label {
  fill: var(--ink-muted);
  font-family: inherit;
  font-size: 12px;
}

.chart-axis-title {
  fill: var(--ink);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
}

.chart-series {
  fill: none;
  stroke-width: 2.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.series-pv {
  stroke: var(--series-pv);
}

.series-price {
  stroke: var(--series-price);
}

.series-charge {
  stroke: var(--series-charge);
}

.series-discharge {
  stroke: var(--series-discharge);
}

.series-soc {
  stroke: var(--series-soc);
}

.series-export {
  stroke: var(--series-export);
}

.series-import {
  stroke: var(--series-import);
}

.series-curtailed {
  stroke: var(--series-curtailed);
}

.chart-legend-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 22px;
  margin: 14px 0 0;
  color: var(--ink-muted);
  font-size: 0.78rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend-item svg {
  flex: 0 0 auto;
}

.chart-data {
  margin-top: 16px;
  border-top: 1px solid #e5ebe7;
  padding-top: 12px;
}

.chart-data summary {
  color: var(--brand-dark);
  font-size: 0.78rem;
  font-weight: 750;
  cursor: pointer;
}

.table-scroll {
  margin-top: 12px;
  overflow-x: auto;
  border: 1px solid #dce4de;
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 0.78rem;
}

th,
td {
  padding: 9px 13px;
  border-bottom: 1px solid #e1e8e3;
  text-align: right;
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}

th:first-child,
td:first-child,
th:nth-child(2),
td:nth-child(2) {
  text-align: left;
}

th {
  background: var(--surface-subtle);
  color: var(--ink-strong);
  font-size: 0.69rem;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.limitations-list {
  margin: 16px 0 0;
  padding-left: 22px;
  color: var(--ink);
  font-size: 0.84rem;
}

.limitations-list li {
  margin-top: 6px;
}

.site-footer {
  padding: 24px 20px 38px;
  color: var(--ink-muted);
  font-size: 0.73rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1080px) {
  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .run-actions {
    grid-column: 1 / -1;
    padding-top: 0;
  }

  .run-actions .field-help {
    max-width: none;
  }
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

@media (max-width: 600px) {
  .header-inner,
  .page-shell {
    width: min(calc(100% - 24px), var(--content-width));
  }

  .header-inner {
    min-height: 68px;
  }

  .environment-badge {
    display: none;
  }

  .page-shell {
    padding-top: 34px;
  }

  .hero {
    margin-bottom: 28px;
  }

  h1 {
    font-size: 2rem;
  }

  .control-panel,
  .panel {
    padding: 18px;
  }

  .control-heading,
  .panel-heading,
  .results-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .button {
    width: 100%;
  }

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

  .scope-notice {
    padding: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --ink-strong: #001308;
    --ink: #102e1a;
    --ink-muted: #30533b;
    --border: #697b6f;
    --border-strong: #405346;
    --brand: #00652b;
  }

  .control-panel,
  .panel,
  .kpi-card,
  .empty-state {
    border-width: 2px;
  }
}

@media (forced-colors: active) {
  .button,
  .status-symbol,
  .scope-icon,
  .brand-mark,
  .environment-badge,
  .chart-series {
    forced-color-adjust: auto;
  }
}

@media print {
  body {
    background: #fff;
  }

  .site-header,
  .control-panel,
  .site-footer,
  .skip-link {
    display: none;
  }

  .page-shell {
    width: 100%;
    padding: 0;
  }

  .hero {
    display: block;
  }

  .scope-notice,
  .panel,
  .kpi-card {
    break-inside: avoid;
    box-shadow: none;
  }
}