:root {
  --bg-page: #fafaf9;
  --bg-card: #ffffff;
  --bg-input: #f5f5f4;
  --bg-result: #f0fdf4;
  --text-primary: #1c1917;
  --text-secondary: #78716c;
  --text-tertiary: #a8a29e;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --border: #e7e5e4;
  --border-focus: #22c55e;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --font-stack: 'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-card: 0 1px 3px rgba(28, 25, 23, 0.04), 0 1px 2px rgba(28, 25, 23, 0.02);
  --shadow-hover: 0 4px 12px rgba(28, 25, 23, 0.06), 0 2px 4px rgba(28, 25, 23, 0.03);
  --shadow-float: 0 8px 24px rgba(28, 25, 23, 0.08), 0 4px 8px rgba(28, 25, 23, 0.04);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;

  --header-height: 56px;
  --bottom-nav-height: 64px;
  --sidebar-width: 240px;
}

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

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-stack);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  overflow-x: hidden;
}

body.has-bottom-nav {
  padding-bottom: calc(var(--bottom-nav-height) + var(--space-4));
}

.footer:has(+ .bottom-nav),
.has-bottom-nav .footer {
  margin-bottom: calc(var(--bottom-nav-height) + var(--space-6));
}

img, svg {
  display: block;
  max-width: 100%;
}

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

a {
  color: var(--green-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--green-500);
  outline-offset: 2px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  overflow-wrap: break-word;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  max-width: 75ch;
  overflow-wrap: break-word;
}

small, .help-text {
  font-size: 0.8125rem;
  font-weight: 400;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 10000;
  padding: var(--space-2) var(--space-4);
  background: var(--green-700);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-4);
}

.breadcrumb {
  font-size: 0.8125rem;
  padding: var(--space-2) 0;
  color: var(--text-tertiary);
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.breadcrumb__item::before {
  content: '›';
  margin-inline-end: 0.25rem;
  color: var(--text-tertiary);
}

.breadcrumb__item:first-child::before {
  content: '';
  margin: 0;
}

.breadcrumb__item a {
  color: var(--green-600);
  text-decoration: none;
  display: inline-block;
  min-height: 44px;
  padding: var(--space-1) var(--space-2);
  align-items: center;
}

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

.breadcrumb__item--current {
  color: var(--text-primary);
  font-weight: 500;
}

.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--space-5);
  max-width: 640px;
}

.page-layout {
  display: block;
}

.tool-page {
  width: 100%;
  max-width: 640px;
  margin-inline: auto;
  padding: var(--space-6) var(--space-5);
}

.calculator-inputs {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  min-width: 0;
}

.calculator-inputs > * {
  min-width: 0;
}

.zone-dims {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.zone-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  max-width: 100%;
  overflow: hidden;
}

.zone-row {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.zone-row:last-child {
  border-bottom: none;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: var(--header-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: hidden;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--green-700);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  padding: 6px 0;
}

.header__logo:hover {
  text-decoration: none;
}

.header__logo-icon {
  font-size: 1.25rem;
}

.header__nav {
  display: none;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
}

.hamburger:hover {
  background: var(--bg-result);
}

.hamburger svg {
  width: 24px;
  height: 24px;
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 100vw;
  overflow-x: hidden;
  z-index: 90;
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  height: var(--bottom-nav-height);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-width: 0;
  gap: 2px;
  padding: var(--space-1);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.625rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.bottom-nav__item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.bottom-nav__item:hover,
.bottom-nav__item:active {
  color: var(--green-600);
  text-decoration: none;
}

.bottom-nav__item--active,
.bottom-nav__item.active {
  color: var(--green-600);
}

.bottom-nav__icon {
  width: 24px;
  height: 24px;
}

.sidebar-nav {
  display: none;
}

.language-switcher {
  position: relative;
  max-width: fit-content;
}

.language-switcher__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--bg-card);
  font-size: 0.8125rem;
  cursor: pointer;
  min-height: 44px;
  white-space: nowrap;
  transition: border-color var(--transition-fast);
}

.language-switcher__toggle:hover {
  border-color: var(--green-500);
}

.language-switcher__dropdown {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  z-index: 200;
  min-width: 160px;
  padding: var(--space-1) 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
  display: none;
}

.language-switcher__dropdown--open {
  display: block;
}

.language-switcher__dropdown a {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  border: none;
  background: transparent;
  text-align: start;
  font-size: 0.875rem;
  color: var(--text-primary);
  text-decoration: none;
  min-height: 44px;
  line-height: 1.6;
}

.language-switcher__dropdown a:hover {
  background: var(--bg-result);
  color: var(--green-700);
  text-decoration: none;
}

.language-switcher__option {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-4);
  border: none;
  background: transparent;
  text-align: start;
  font-size: 0.875rem;
  cursor: pointer;
  min-height: 44px;
}

.language-switcher__option:hover {
  background: var(--bg-result);
}

.language-switcher__option--active {
  font-weight: 600;
  color: var(--green-700);
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.field-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.input-wrapper {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  max-width: 100%;
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-wrapper:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.input-wrapper input {
  flex: 1;
  min-width: 0;
  padding: var(--space-3) var(--space-3);
  border: none;
  background: transparent;
  font-size: 1rem;
  text-align: start;
  min-height: 44px;
  outline: none;
}

.input-wrapper input::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

.input-wrapper select {
  flex: 1;
  min-width: 0;
  padding: var(--space-3) var(--space-3);
  border: none;
  background: transparent;
  font-size: 1rem;
  min-height: 44px;
  outline: none;
  cursor: pointer;
}

.unit-suffix {
  display: flex;
  align-items: center;
  padding-inline: var(--space-3);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  background: var(--bg-input);
  min-height: 44px;
  white-space: nowrap;
  border-inline-start: 1px solid var(--border);
}

.unit-suffix--prefix {
  border-inline-start: none;
  border-inline-end: 1px solid var(--border);
  font-weight: 600;
  color: var(--text-secondary);
}

.field-group .error-message {
  font-size: 0.8125rem;
  color: #dc2626;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.field-group.has-error .input-wrapper {
  border-color: #dc2626;
}

.field-group.has-error .input-wrapper:focus-within {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  min-height: 44px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--green-700);
  color: #fff;
  border-color: var(--green-700);
}

.btn--primary:hover {
  background: var(--green-600);
  border-color: var(--green-600);
}

.btn--secondary {
  background: var(--bg-result);
  color: var(--green-700);
  border-color: transparent;
}

.btn--secondary:hover {
  background: #dcfce7;
}

.btn--outline {
  background: transparent;
  color: var(--green-700);
  border-color: var(--green-500);
}

.btn--outline:hover {
  background: var(--bg-result);
}

.btn--sm {
  padding: var(--space-1) var(--space-3);
  font-size: 0.8125rem;
  min-height: 44px;
}

.btn--full {
  width: 100%;
}

.btn--icon {
  padding: var(--space-2);
  min-width: 44px;
  min-height: 44px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-group {
  display: flex;
  gap: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1.5px solid var(--green-500);
}

.btn-group .btn {
  flex: 1;
  border: none;
  border-radius: 0;
  border-inline-end: 1px solid var(--green-500);
  min-height: 44px;
  font-size: 0.8125rem;
  background: var(--bg-card);
  color: var(--green-700);
  font-weight: 600;
}

.btn-group .btn:last-child {
  border-inline-end: none;
}

.btn-group .btn--active,
.btn-group .btn.active {
  background: var(--green-700);
  color: #fff;
}

.result-card {
  background: var(--bg-result);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-lg);
  padding: var(--space-7, 1.75rem);
  text-align: center;
  min-width: 0;
  overflow: hidden;
}

.result-card--main {
  padding: var(--space-7, 1.75rem);
}

.result-number,
.result-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--green-700);
  letter-spacing: -0.03em;
  line-height: 1.2;
  word-break: break-word;
  overflow-wrap: break-word;
}

.result-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--green-600);
  margin-top: var(--space-1);
}

.result-detail {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: var(--space-2);
}

.result-card-info {
  background: var(--bg-result);
  border-color: #bbf7d0;
}

.result-card-info .result-value {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: normal;
}

.results-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-4);
}

.cost-estimator {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-3);
}

.cost-estimator__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: end;
}

.cost-estimator__total {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--green-700);
  letter-spacing: -0.02em;
  text-align: end;
}

.cost-estimator__help {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-6) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.tool-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--green-400);
  transform: translateY(-2px);
  text-decoration: none;
}

.tool-card__icon {
  font-size: 2rem;
  line-height: 1;
}

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

.tool-card__desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.shape-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  text-align: center;
  min-height: 44px;
}

.shape-card:hover {
  border-color: var(--green-400);
}

.shape-card--active {
  border-color: var(--green-500);
  background: var(--bg-result);
  border-inline-start-width: 3px;
  border-inline-start-color: var(--green-500);
}

.shape-card__icon {
  font-size: 1.5rem;
}

.shape-card__name {
  font-size: 0.8125rem;
  font-weight: 600;
}

.accordion {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion__item {
  border-bottom: 1px solid var(--border);
}

.accordion__item:last-child {
  border-bottom: none;
}

.accordion__item--open {
  background: var(--bg-input);
  border-inline-start: 3px solid var(--green-500);
}

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4);
  border: none;
  background: var(--bg-card);
  font-size: 1rem;
  font-weight: 600;
  text-align: start;
  cursor: pointer;
  min-height: 48px;
  gap: var(--space-3);
  transition: background-color var(--transition-fast);
}

.accordion__trigger:hover {
  background: var(--bg-input);
}

.accordion__item--open .accordion__trigger {
  background: var(--bg-input);
}

.accordion__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base);
}

.accordion__item--open .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  display: none;
  padding: 0 var(--space-4) var(--space-4);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background: var(--bg-input);
}

.accordion__item--open .accordion__content {
  display: block;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 100vw;
  overflow-x: hidden;
  z-index: 200;
  padding: var(--space-4);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-float);
}

.cookie-banner__text {
  font-size: 0.8125rem;
  margin-bottom: var(--space-3);
  max-width: 75ch;
  color: var(--text-secondary);
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-inline: calc(-1 * var(--space-4));
  padding-inline: var(--space-4);
}

.comparison-table {
  min-width: 600px;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-2) var(--space-3);
  text-align: start;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  font-weight: 600;
  background: var(--bg-input);
  position: sticky;
  top: 0;
}

.comparison-table tr:hover td {
  background: rgba(34, 197, 94, 0.04);
}

.calendar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.calendar-month {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-card);
}

.calendar-month__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.calendar-month__name {
  font-size: 1rem;
  font-weight: 700;
}

.calendar-month__phase {
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.calendar-month__phase--dormant {
  background: #f5f5f4;
  color: #78716c;
}

.calendar-month__phase--pre-season {
  background: #fef9c3;
  color: #a16207;
}

.calendar-month__phase--active {
  background: var(--bg-result);
  color: var(--green-700);
}

.calendar-month__phase--transition {
  background: #fff7ed;
  color: #c2410c;
}

.calendar-month__phase--preparation {
  background: #fef3c7;
  color: #92400e;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: 0.8125rem;
}

.task-item__priority {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 6px;
}

.task-item__priority--high {
  background: #dc2626;
}

.task-item__priority--medium {
  background: #b45309;
}

.task-item__priority--low {
  background: var(--green-500);
}

.task-item__text {
  flex: 1;
  min-width: 0;
}

.wizard-step {
  display: none;
}

.wizard-step--active {
  display: block;
}

.wizard-progress {
  width: 100%;
  height: 8px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.wizard-progress__bar {
  height: 100%;
  background: var(--green-500);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.wizard-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.toggle {
  display: inline-flex;
  border: 1.5px solid var(--green-500);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.toggle__option {
  padding: var(--space-2) var(--space-4);
  border: none;
  background: transparent;
  color: var(--green-700);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.toggle__option--active,
.toggle__option.active {
  background: var(--green-700);
  color: #fff;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.section-padding {
  padding: var(--space-6) var(--space-4);
}

.footer {
  padding: var(--space-8) var(--space-4);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-align: center;
}

.footer-inner {
  max-width: 640px;
  margin-inline: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin-bottom: var(--space-4);
  justify-content: center;
}

.footer-links a {
  color: var(--green-600);
  text-decoration: none;
  display: inline-block;
  min-height: 44px;
  padding: var(--space-1) var(--space-2);
}

.footer-links a:hover {
  color: var(--green-700);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.footer__inner {
  max-width: 640px;
  margin-inline: auto;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin-bottom: var(--space-4);
  justify-content: center;
}

.footer__links a {
  color: var(--green-600);
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--green-700);
  text-decoration: underline;
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.slider-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.slider-field label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.slider-track {
  position: relative;
}

.slider-track input[type="range"] {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border);
  border-radius: var(--radius-full);
  outline: none;
}

.slider-track input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green-700);
  cursor: pointer;
  border: 3px solid var(--bg-card);
  box-shadow: var(--shadow-hover);
}

.slider-track input[type="range"]::-moz-range-thumb {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green-700);
  cursor: pointer;
  border: 3px solid var(--bg-card);
  box-shadow: var(--shadow-hover);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.slider-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--green-700);
}

.trust-banner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-result);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  color: var(--green-700);
  font-weight: 500;
}

.ad-unit {
  display: none;
}

.right-rail {
  display: none;
}

.edge-nav {
  display: none;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

.grass-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-3);
}

.grass-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.grass-card__header h2 {
  font-size: 1rem;
  font-weight: 700;
}

.grass-card__sun {
  font-size: 1.25rem;
}

.grass-card__desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.grass-card__pros {
  list-style: disc;
  padding-inline-start: var(--space-5);
  margin-bottom: var(--space-3);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.grass-card__pros li {
  margin-bottom: var(--space-1);
}

.grass-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: 0.8125rem;
}

.grass-card__stat {
  color: var(--text-secondary);
}

.grass-card__stat strong {
  color: var(--text-primary);
}

.zone-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.zone-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--green-700);
}

.zone-remove-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  cursor: pointer;
  font-size: 1.125rem;
  color: var(--text-tertiary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.zone-remove-btn:hover {
  background: #fef2f2;
  border-color: #dc2626;
  color: #dc2626;
}

.zone-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.zone-shape-select {
  width: 100%;
  box-sizing: border-box;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 1rem;
  min-height: 44px;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
}

.zone-shape-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.zone-dims input[type="number"] {
  width: 100%;
  box-sizing: border-box;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  font-size: 1rem;
  min-height: 44px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.zone-dims input[type="number"]:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.zone-dims input[type="number"]::placeholder {
  color: var(--text-tertiary);
  opacity: 0.7;
}

.send-to-sod-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  margin-top: var(--space-4);
  background: var(--green-700);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  min-height: 44px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.send-to-sod-btn:hover {
  background: var(--green-600);
  text-decoration: none;
}

.toggle-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--green-600);
  text-decoration: none;
  cursor: pointer;
  min-height: 44px;
  padding: var(--space-1) var(--space-2);
}

.toggle-link:hover {
  text-decoration: underline;
}

.toggle-link.open {
  color: var(--green-700);
}

.priority-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.month-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.month-name {
  font-size: 1rem;
  font-weight: 700;
}

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

.month-tasks li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: 0.8125rem;
}

.month-tip {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  font-style: italic;
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
}

.tool-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.tool-pill:hover {
  background: var(--bg-result);
  border-color: var(--green-500);
  color: var(--green-700);
  text-decoration: none;
}

@media (min-width: 480px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 640px) {
  .container {
    padding-inline: var(--space-6);
  }

  .tool-page {
    padding-inline: var(--space-6);
  }

  .zone-dims {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .shape-card {
    flex-direction: row;
    justify-content: flex-start;
    gap: var(--space-3);
  }

  .cookie-banner__actions {
    justify-content: flex-start;
  }

  .grass-card__stats {
    gap: var(--space-3) var(--space-6);
  }
}

@media (min-width: 768px) {
  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .result-number,
  .result-value {
    font-size: 3rem;
  }

  .container {
    max-width: 640px;
    padding-inline: var(--space-8);
  }

  .tool-page {
    max-width: 640px;
    padding-inline: var(--space-8);
  }

  .section-padding {
    padding: var(--space-10) var(--space-8);
  }

  .bottom-nav {
    display: none;
  }

  body.has-bottom-nav {
    padding-bottom: 0;
  }

  .header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .header__nav a {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding-bottom: 2px;
  }

  .header__nav a:hover {
    color: var(--green-600);
  }

  .header__nav a.active {
    color: var(--green-600);
  }

  .header__nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--green-500);
    border-radius: 1px;
  }

  .hamburger {
    display: none;
  }

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

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .shape-card {
    grid-template-columns: repeat(4, 1fr);
  }

  .cookie-banner {
    left: auto;
    right: var(--space-4);
    bottom: var(--space-4);
    max-width: 420px;
    border-radius: var(--radius-lg);
  }

  .grass-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .grass-card {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 640px;
    padding-inline: var(--space-8);
  }

  .tool-page {
    max-width: 640px;
    padding-inline: var(--space-8);
  }

  .section-padding {
    padding: var(--space-12) var(--space-10);
  }

  .page-layout {
    grid-template-columns: 240px 1fr;
    max-width: 1100px;
  }

  .header {
    padding-inline: var(--space-8);
  }

  .calendar-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .accordion__content {
    padding-inline: var(--space-6);
  }

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

@media (min-width: 1280px) {
  .container { max-width: 640px; }

  .tool-page { max-width: 640px; }
}

@media (min-width: 1536px) {
  .tool-page { max-width: 640px; }
}

@media (min-width: 1920px) {
  .tool-page { max-width: 640px; }
}

@media (min-width: 2560px) {
  .tool-page { max-width: 640px; padding-inline: var(--space-16); }

  body { font-size: clamp(16px, 1vw + 10px, 20px); }

  .result-number, .result-value { font-size: 3rem; }

  .input-wrapper input { min-height: 56px; }

  .unit-suffix { min-height: 56px; }
}

@media (min-width: 3840px) {
  .tool-page {
    max-width: 640px;
    padding-inline: var(--space-16);
  }

  body {
    font-size: clamp(16px, 1vw + 10px, 20px);
  }

  .result-number {
    font-size: 3rem;
  }

  .input-wrapper input {
    min-height: 56px;
  }

  .unit-suffix {
    min-height: 56px;
  }
}

@media (min-aspect-ratio: 21/9) and (min-width: 2560px) {
  body { background: var(--bg-page); }
}

html[dir="rtl"] .header__logo {
  flex-direction: row-reverse;
}

html[dir="rtl"] .header__nav {
  flex-direction: row-reverse;
}

html[dir="rtl"] .header__actions {
  flex-direction: row-reverse;
}

html[dir="rtl"] .bottom-nav {
  flex-direction: row-reverse;
}

html[dir="rtl"] .input-wrapper {
  flex-direction: row-reverse;
}

html[dir="rtl"] .unit-suffix {
  border-inline-start: none;
  border-inline-end: 1px solid var(--border);
}

html[dir="rtl"] .unit-suffix--prefix {
  border-inline-end: none;
  border-inline-start: 1px solid var(--border);
}

html[dir="rtl"] .accordion__trigger {
  flex-direction: row-reverse;
  text-align: right;
}

html[dir="rtl"] .task-item {
  flex-direction: row-reverse;
}

html[dir="rtl"] .tool-card {
  text-align: center;
}

html[dir="rtl"] .shape-card--active {
  border-inline-start-width: 2px;
  border-inline-end-width: 3px;
}

html[dir="rtl"] .cookie-banner__actions {
  flex-direction: row-reverse;
}

html[dir="rtl"] .wizard-actions {
  flex-direction: row-reverse;
}

html[dir="rtl"] .btn-group {
  flex-direction: row-reverse;
}

html[dir="rtl"] .footer__links,
html[dir="rtl"] .footer-links {
  flex-direction: row-reverse;
  justify-content: flex-end;
}

html[dir="rtl"] .toggle {
  flex-direction: row-reverse;
}

html[dir="rtl"] .language-switcher__dropdown {
  right: auto;
  left: 0;
}

html[dir="rtl"] .calendar-month__header {
  flex-direction: row-reverse;
}

html[dir="rtl"] .trust-banner {
  flex-direction: row-reverse;
}

@media print {
  .header,
  .bottom-nav,
  .sidebar-nav,
  .hamburger,
  .language-switcher,
  .cookie-banner,
  .ad-unit,
  .right-rail,
  .edge-nav,
  .footer,
  .related-tools,
  .share-buttons,
  .trust-banner,
  .wizard-actions,
  .btn-group,
  .toggle,
  nav {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
    padding: 0;
  }

  body.has-bottom-nav {
    padding-bottom: 0;
  }

  .calculator-inputs,
  .results-panel {
    display: block !important;
    break-inside: avoid;
  }

  .result-number {
    font-size: 24pt;
    font-weight: bold;
  }

  .result-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  a {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    word-break: break-all;
  }

  .page-layout {
    display: block !important;
  }

  .container,
  .tool-page {
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .section-padding {
    padding: var(--space-4) 0;
  }
}

@media (forced-colors: active) {
  .btn,
  .btn--primary,
  .btn--secondary,
  .btn--outline {
    border: 2px solid currentColor;
  }

  .input-wrapper {
    border: 2px solid currentColor;
  }

  .result-card,
  .card,
  .tool-card,
  .shape-card,
  .accordion,
  .calendar-month {
    border: 1px solid currentColor;
  }

  .toggle {
    border: 2px solid currentColor;
  }

  .btn-group {
    border: 2px solid currentColor;
  }

  .slider-track input[type="range"] {
    forced-color-adjust: none;
  }

  .slider-track input[type="range"]::-webkit-slider-thumb {
    forced-color-adjust: none;
    border: 2px solid ButtonText;
  }

  .slider-track input[type="range"]::-moz-range-thumb {
    forced-color-adjust: none;
    border: 2px solid ButtonText;
  }

  .accordion__icon {
    forced-color-adjust: none;
  }

  .task-item__priority {
    forced-color-adjust: none;
  }

  .calendar-month__phase {
    forced-color-adjust: none;
    border: 1px solid currentColor;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .tool-card:hover {
    transform: none;
  }

  .btn:active {
    transform: none;
  }

  .accordion__icon {
    transition: none;
  }

  .wizard-progress__bar {
    transition: none;
  }
}