/* Поміч поруч — Design System · ТЗ §18 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f8f5f0;
  --white: #ffffff;
  --trust: #a9d6e5;
  --trust-dark: #5aafc9;
  --calm: #95b8a2;
  --calm-dark: #557d68;
  --warm: #f4c7b8;
  --text: #2c2926;
  --text-muted: #7a7268;
  --text-light: #9a9084;
  --border: #e0d8cc;
  --available: #22c55e;
  --busy: #ef4444;
  --vacation: #f59e0b;
  --radius-sm: 0.75rem;
  --radius: 1rem;
  --radius-lg: 1.5rem;
  --shadow: 0 4px 24px -4px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 16px 48px -12px rgb(0 0 0 / 0.1);
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "DM Sans", var(--font);
  --brand-help: #1e3354;
  --brand-at: #b8a9d6;
  --brand-hand: #95b8a2;
  --header-h: 4rem;
  --touch: 44px;
}

.brand-en {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  white-space: nowrap;
}

.brand-en-help { color: var(--brand-help); }
.brand-en-at { color: var(--brand-at); }
.brand-en-hand { color: var(--brand-hand); }

.brand-en--footer {
  font-size: 0.9375rem;
  margin-top: 0.125rem;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  padding-top: calc(var(--header-h) + env(safe-area-inset-top));
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; }

:focus-visible {
  outline: 2px solid var(--calm);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: var(--touch);
  min-width: var(--touch);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

.btn[hidden],
button[hidden],
a[hidden] {
  display: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--calm), var(--calm-dark));
  color: var(--white);
  box-shadow: var(--shadow);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }

.btn-secondary {
  background: var(--white);
  color: var(--text);
  border: 1px solid var(--border);
}

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

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

.btn-ghost:hover { background: rgb(0 0 0 / 0.04); }

.btn-block { width: 100%; }

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: box-shadow 0.25s, transform 0.25s;
}

.card-hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Forms */
.field {
  width: 100%;
  min-height: var(--touch);
  padding: 0.625rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-size: 1rem;
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field:focus {
  border-color: var(--calm);
  box-shadow: 0 0 0 3px rgb(149 184 162 / 0.2);
  outline: none;
}

.field.is-invalid {
  border-color: var(--busy);
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.15);
}

.field.is-invalid:focus {
  border-color: var(--busy);
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.2);
}

.field-error {
  margin: 0.375rem 0 0;
  color: var(--busy);
  font-size: 0.8125rem;
  line-height: 1.35;
  min-height: 1.2em;
}

.field-error[hidden] {
  display: none;
}

@supports (-webkit-touch-callout: none) {
  input.field[type="tel"],
  input.field[type="email"] {
    font-size: 16px;
  }
}

/* Select — custom chevron */
select.field {
  padding-right: 2.75rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath stroke='%237a7268' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 1rem 1rem;
}

select.field:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath stroke='%23557d68' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
}

select.field:hover:not(:focus) {
  border-color: #c8c0b4;
  background-color: var(--bg);
}

/* iOS Safari — запобігає занадто малому тексту в select */
@supports (-webkit-touch-callout: none) {
  select.field {
    font-size: 16px;
  }
}

/* ── Custom Select (JS-компонент) ───────────────────────── */
.cs-root {
  position: relative;
  width: 100%;
}

.cs-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  min-height: var(--touch);
  padding: 0.625rem 0.875rem 0.625rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text);
  font-size: 1rem;
  font-weight: 400;
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.cs-trigger:hover {
  border-color: #c8c0b4;
  background: var(--bg);
}

.cs-root.is-open .cs-trigger,
.cs-trigger:focus-visible {
  border-color: var(--calm);
  box-shadow: 0 0 0 3px rgb(149 184 162 / 0.2);
  outline: none;
}

.cs-value {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cs-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.25s ease, color 0.2s ease;
}

.cs-root.is-open .cs-chevron {
  transform: rotate(180deg);
  color: var(--calm-dark);
}

.cs-menu {
  margin: 0;
  padding: 0.375rem;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  max-height: 16rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.cs-option {
  display: flex;
  align-items: center;
  min-height: var(--touch);
  padding: 0.5rem 0.75rem;
  border-radius: calc(var(--radius-sm) - 0.25rem);
  font-size: 0.9375rem;
  color: var(--text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s ease, color 0.15s ease;
}

.cs-option:hover,
.cs-option:focus-visible {
  background: rgb(149 184 162 / 0.1);
  outline: none;
}

.cs-option.is-selected {
  background: rgb(149 184 162 / 0.15);
  color: var(--calm-dark);
  font-weight: 500;
}

.cs-option.is-selected::before {
  content: '✓';
  margin-right: 0.5rem;
  font-size: 0.8125rem;
  flex-shrink: 0;
}

.cs-group-label {
  padding: 0.5rem 0.875rem 0.25rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-light);
  pointer-events: none;
}

.cs-option.is-disabled {
  color: var(--text-light);
  cursor: not-allowed;
  opacity: 0.72;
}

.cs-option.is-disabled:hover,
.cs-option.is-disabled:focus-visible {
  background: transparent;
}

@supports (-webkit-touch-callout: none) {
  .cs-trigger {
    font-size: 16px;
  }
}

@media (max-width: 479px) {
  .cs-menu {
    max-height: 12rem;
  }
}

.label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-green { background: rgb(34 197 94 / 0.12); color: #15803d; }
.badge-red { background: rgb(239 68 68 / 0.12); color: #b91c1c; }
.badge-trust { background: rgb(169 214 229 / 0.35); color: #2d6a7e; }

/* Typography */
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-muted);
  max-width: 42rem;
}

.page-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem) 0;
  overflow: hidden;
  background: transparent;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgb(248 245 240 / 0.55), rgb(169 214 229 / 0.35), rgb(149 184 162 / 0.25), rgb(244 199 184 / 0.14));
  z-index: 0;
}

.page-hero-inner { position: relative; z-index: 1; }

.page-hero-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 0.75rem;
}

.page-hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-muted);
  max-width: 40rem;
}

.page-hero-compact {
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.breadcrumbs a:hover { color: var(--calm-dark); }
.breadcrumbs span { color: var(--text-muted); font-weight: 500; }

/* Grid helpers */
.grid-2 { display: grid; gap: 1.5rem; }
.grid-3 { display: grid; gap: 1.5rem; }
.grid-4 { display: grid; gap: 1.5rem; }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Sticky mobile CTA */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  padding: 0.75rem 1rem;
  padding-bottom: calc(0.75rem + env(safe-area-inset-bottom));
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
}

@media (min-width: 768px) { .sticky-cta { display: none; } }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Page transitions — native cross-document View Transitions API */
@view-transition {
  navigation: auto;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.18s;
  animation-timing-function: ease;
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.01s;
  }
}