/* ================================================================
   ДоОффера — глобальные стили
   Шрифт: Inter | Цвет: #2563EB (синий) | Фон: #F8FAFC
   ================================================================ */

/* ---------------------------------------------------------------- Импорт шрифта */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---------------------------------------------------------------- CSS-переменные */
:root {
  /* Цвета */
  --c-primary:       #2563EB;
  --c-primary-dark:  #1D4ED8;
  --c-primary-light: #DBEAFE;
  --c-accent:        #7C3AED;
  --c-success:       #16A34A;
  --c-warning:       #D97706;
  --c-danger:        #DC2626;

  --c-bg:            #F8FAFC;
  --c-bg-alt:        #F1F5F9;
  --c-surface:       #FFFFFF;
  --c-border:        #E2E8F0;
  --c-border-hover:  #CBD5E1;

  --c-text:          #0F172A;
  --c-text-secondary:#475569;
  --c-text-muted:    #94A3B8;

  /* Типографика */
  --font:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:    0.75rem;
  --font-size-sm:    0.875rem;
  --font-size-base:  1rem;
  --font-size-lg:    1.125rem;
  --font-size-xl:    1.25rem;
  --font-size-2xl:   1.5rem;
  --font-size-3xl:   1.875rem;
  --font-size-4xl:   2.25rem;
  --font-size-5xl:   3rem;

  /* Скругления */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-full: 9999px;

  /* Тени */
  --shadow-xs:  0 1px 2px rgba(0,0,0,.06);
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px rgba(0,0,0,.10), 0 10px 10px rgba(0,0,0,.04);
  --shadow-2xl: 0 25px 50px rgba(0,0,0,.12);

  /* Переходы */
  --transition: 0.2s ease;
  --transition-slow: 0.35s ease;

  /* Layout */
  --container:    1200px;
  --container-sm: 800px;
  --header-h:     72px;
}

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

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

body {
  font-family: var(--font);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; }

/* ---------------------------------------------------------------- Утилиты */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container--sm {
  max-width: var(--container-sm);
}

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

/* ---------------------------------------------------------------- Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  outline: none;
}
.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}
.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--primary {
  background: var(--c-primary);
  color: #fff;
  border-color: var(--c-primary);
}
.btn--primary:hover {
  background: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,.35);
}

.btn--secondary {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-border);
}
.btn--secondary:hover {
  background: var(--c-primary-light);
  border-color: var(--c-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--c-text);
  border-color: transparent;
}
.btn--ghost:hover {
  background: var(--c-bg-alt);
}

.btn--success {
  background: var(--c-success);
  color: #fff;
  border-color: var(--c-success);
}
.btn--success:hover {
  background: #15803D;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22,163,74,.35);
}

.btn--lg {
  padding: 16px 32px;
  font-size: var(--font-size-base);
  border-radius: var(--radius-xl);
}
.btn--sm {
  padding: 8px 16px;
  font-size: var(--font-size-xs);
  border-radius: var(--radius-md);
}
.btn--full {
  width: 100%;
}

/* ---------------------------------------------------------------- Карточки */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.card--hover {
  transition: all var(--transition);
}
.card--hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--c-border-hover);
}

/* ---------------------------------------------------------------- Форм-элементы */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field__label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--c-text-secondary);
}
.field__input, .field__textarea, .field__select {
  width: 100%;
  padding: 11px 14px;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md);
  color: var(--c-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.field__input:focus, .field__textarea:focus, .field__select:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.field__input.is-error, .field__textarea.is-error {
  border-color: var(--c-danger);
}
.field__error {
  font-size: var(--font-size-xs);
  color: var(--c-danger);
}
.field__hint {
  font-size: var(--font-size-xs);
  color: var(--c-text-muted);
}
.field__textarea {
  resize: vertical;
  min-height: 120px;
}

/* ---------------------------------------------------------------- Бейджи */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.5;
}
.badge--blue   { background: #DBEAFE; color: #1E40AF; }
.badge--green  { background: #DCFCE7; color: #15803D; }
.badge--yellow { background: #FEF3C7; color: #92400E; }
.badge--red    { background: #FEE2E2; color: #991B1B; }
.badge--purple { background: #EDE9FE; color: #5B21B6; }
.badge--gray   { background: var(--c-bg-alt); color: var(--c-text-secondary); }

/* ---------------------------------------------------------------- Score-кольцо */
.score-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
}
.score-ring__svg {
  position: absolute;
  top: 0; left: 0;
  transform: rotate(-90deg);
}
.score-ring__circle {
  fill: none;
  stroke: var(--c-border);
  stroke-width: 8;
}
.score-ring__progress {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.2s cubic-bezier(.25,.46,.45,.94);
}
.score-ring__value {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
}
.score-ring__label {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Цвета прогресса */
.score-ring--red    .score-ring__progress { stroke: var(--c-danger); }
.score-ring--red    .score-ring__value    { color: var(--c-danger); }
.score-ring--yellow .score-ring__progress { stroke: var(--c-warning); }
.score-ring--yellow .score-ring__value    { color: var(--c-warning); }
.score-ring--green  .score-ring__progress { stroke: var(--c-success); }
.score-ring--green  .score-ring__value    { color: var(--c-success); }

/* ---------------------------------------------------------------- Loader / Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
  flex-shrink: 0;
}

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

/* ---------------------------------------------------------------- Анимации появления */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--left  { transform: translateX(-24px); }
.reveal--right { transform: translateX(24px); }
.reveal--left.is-visible,
.reveal--right.is-visible { transform: translateX(0); }

/* Задержки */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---------------------------------------------------------------- Модальные окна */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--c-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px) scale(.97);
  transition: transform var(--transition);
}
.modal-overlay.is-open .modal {
  transform: translateY(0) scale(1);
}
.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 24px 0;
}
.modal__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
}
.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--c-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.modal__close:hover {
  background: var(--c-bg-alt);
  color: var(--c-text);
}
.modal__body {
  padding: 24px;
}

/* ---------------------------------------------------------------- Toast уведомления */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--c-text);
  color: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  min-width: 260px;
  max-width: 380px;
  animation: toastIn 0.3s ease forwards;
}
.toast--success { background: var(--c-success); }
.toast--error   { background: var(--c-danger); }
.toast--warning { background: var(--c-warning); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  to { opacity: 0; transform: translateX(20px); }
}
.toast.is-hiding {
  animation: toastOut 0.3s ease forwards;
}

/* ---------------------------------------------------------------- Разделитель с текстом */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text-muted);
  font-size: var(--font-size-sm);
  margin: 16px 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border);
}

/* ---------------------------------------------------------------- Аккордеон */
.accordion__item {
  border-bottom: 1px solid var(--c-border);
}
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--c-text);
  cursor: pointer;
  gap: 16px;
}
.accordion__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}
.accordion__item.is-open .accordion__icon {
  transform: rotate(180deg);
}
.accordion__content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.accordion__item.is-open .accordion__content {
  max-height: 400px;
}
.accordion__body {
  padding-bottom: 20px;
  color: var(--c-text-secondary);
  line-height: 1.7;
}

/* ---------------------------------------------------------------- Tabs */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--c-bg-alt);
  border-radius: var(--radius-lg);
  padding: 4px;
}
.tabs__btn {
  flex: 1;
  padding: 9px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--c-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.tabs__btn.is-active {
  background: var(--c-surface);
  color: var(--c-text);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

/* ---------------------------------------------------------------- Переключатель (toggle) */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.toggle__input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle__track {
  width: 48px;
  height: 26px;
  background: var(--c-border);
  border-radius: var(--radius-full);
  transition: background var(--transition);
  position: relative;
}
.toggle__track::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: var(--shadow-xs);
}
.toggle__input:checked + .toggle__track {
  background: var(--c-primary);
}
.toggle__input:checked + .toggle__track::after {
  transform: translateX(22px);
}

/* ---------------------------------------------------------------- Адаптивность */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }
  .container {
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.875rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
  }
  .btn--lg {
    padding: 14px 24px;
    font-size: var(--font-size-sm);
  }
}