/* ============================================
   COMPONENTS.CSS — Кнопки, карточки, формы
   ============================================ */

/* ==========================================
   КНОПКИ
   ========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  letter-spacing: 0.01em;
}

/* Первичная кнопка */
.btn--primary {
  background: var(--gradient-blue);
  color: var(--text-white);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn--primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--glow-blue);
}

.btn--primary:hover::before {
  opacity: 1;
}

.btn--primary:active {
  transform: translateY(0) scale(0.98);
}

/* Контурная кнопка */
.btn--outline {
  background: transparent;
  color: var(--text-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.btn--outline:hover {
  border-color: var(--accent-blue-light);
  color: var(--accent-blue-light);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
  transform: translateY(-2px);
}

/* Янтарная кнопка */
.btn--amber {
  background: var(--gradient-amber);
  color: var(--bg-primary);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn--amber:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--glow-amber);
}

/* Маленькая кнопка */
.btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-small);
}

/* Большая кнопка */
.btn--lg {
  padding: 1.125rem 2.5rem;
  font-size: 1.0625rem;
}

/* Кнопка-иконка */
.btn--icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
}

.btn--icon:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-medium);
}

/* ==========================================
   КАРТОЧКИ МЕДИАФАСАДОВ
   ========================================== */

.media-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-slow);
  cursor: pointer;
}

.media-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--glow-blue);
  transform: translateY(-6px);
}

.media-card__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-secondary);
}

/* Постоянный тёмный виньет поверх фото */
.media-card__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(5, 8, 20, 0.35) 0%,
    rgba(5, 8, 20, 0.15) 50%,
    rgba(5, 8, 20, 0.5) 100%
  );
  z-index: 1;
  pointer-events: none;
}

/* Фото внутри карточки */
.media-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: brightness(0.82) saturate(0.8);
  transition: transform 0.55s ease, filter 0.4s ease;
}

.media-card:hover .media-card__img {
  transform: scale(1.06);
  filter: brightness(0.72) saturate(0.95);
}

.media-card__image-inner {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
}

.media-card:hover .media-card__image-inner {
  transform: scale(1.05);
}

/* CSS-заглушка — стиль «ночной LED-экран» */
.media-card__placeholder {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  background: #080e1e;
}

/* Базовый световой слой */
.media-card__placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 70% 60% at 35% 45%,
      rgba(59, 130, 246, 0.65) 0%,
      rgba(37, 99, 235, 0.3) 35%,
      transparent 70%),
    radial-gradient(ellipse 50% 50% at 75% 65%,
      rgba(245, 158, 11, 0.35) 0%,
      transparent 60%),
    linear-gradient(160deg, #0a1628 0%, #060d1c 50%, #0d0820 100%);
}

/* Горизонтальные строки LED-матрицы */
.media-card__placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: repeating-linear-gradient(
    180deg,
    transparent 0px,
    transparent 3px,
    rgba(0, 0, 0, 0.15) 3px,
    rgba(0, 0, 0, 0.15) 4px
  );
  pointer-events: none;
}

/* --- Уникальный стиль для каждой карточки --- */

/* 1: Энтузиастов — холодный синий */
.media-card:nth-child(1) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 80% 70% at 20% 40%,
      rgba(37, 99, 235, 0.85) 0%,
      rgba(59, 130, 246, 0.4) 30%,
      transparent 65%),
    radial-gradient(ellipse 55% 45% at 85% 75%,
      rgba(99, 102, 241, 0.4) 0%,
      transparent 55%),
    linear-gradient(135deg, #080e1e 0%, #0a1230 50%, #06091a 100%);
}

/* 2: Бережковская — индиго/фиолетовый */
.media-card:nth-child(2) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 65% 75% at 65% 35%,
      rgba(99, 102, 241, 0.85) 0%,
      rgba(79, 70, 229, 0.35) 35%,
      transparent 65%),
    radial-gradient(ellipse 50% 40% at 20% 75%,
      rgba(37, 99, 235, 0.45) 0%,
      transparent 55%),
    linear-gradient(135deg, #07091e 0%, #0c0f28 50%, #080c1e 100%);
}

/* 3: Донской — синий + янтарный */
.media-card:nth-child(3) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 60% 65% at 45% 30%,
      rgba(59, 130, 246, 0.8) 0%,
      rgba(37, 99, 235, 0.35) 40%,
      transparent 65%),
    radial-gradient(ellipse 55% 45% at 75% 75%,
      rgba(245, 158, 11, 0.55) 0%,
      transparent 55%),
    linear-gradient(150deg, #08101e 0%, #0a1525 50%, #100a10 100%);
}

/* 4: Профсоюзная — тёплый фиолет */
.media-card:nth-child(4) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 70% 60% at 55% 50%,
      rgba(139, 92, 246, 0.75) 0%,
      rgba(109, 40, 217, 0.35) 40%,
      transparent 65%),
    radial-gradient(ellipse 50% 50% at 15% 30%,
      rgba(59, 130, 246, 0.4) 0%,
      transparent 55%),
    linear-gradient(135deg, #09070f 0%, #100d1a 50%, #0a0e1c 100%);
}

/* 5: Хорошевское — голубой/cyan */
.media-card:nth-child(5) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 75% 65% at 40% 40%,
      rgba(56, 189, 248, 0.75) 0%,
      rgba(14, 165, 233, 0.35) 35%,
      transparent 65%),
    radial-gradient(ellipse 50% 45% at 80% 70%,
      rgba(99, 102, 241, 0.4) 0%,
      transparent 55%),
    linear-gradient(135deg, #060e18 0%, #081424 50%, #07101e 100%);
}

/* 6: Кутузовский — янтарный/золотой */
.media-card:nth-child(6) .media-card__placeholder::before {
  background:
    radial-gradient(ellipse 70% 65% at 55% 45%,
      rgba(245, 158, 11, 0.85) 0%,
      rgba(217, 119, 6, 0.4) 35%,
      transparent 65%),
    radial-gradient(ellipse 45% 40% at 15% 70%,
      rgba(251, 191, 36, 0.35) 0%,
      transparent 55%),
    radial-gradient(ellipse 40% 35% at 85% 20%,
      rgba(37, 99, 235, 0.35) 0%,
      transparent 55%),
    linear-gradient(135deg, #0f0800 0%, #1a1000 50%, #0d0c08 100%);
}

/* Hover: усиливаем свечение */
.media-card:hover .media-card__placeholder::before {
  filter: brightness(1.25) saturate(1.2);
}

/* Иконка LED-экрана поверх градиента */
.media-card__screen-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 48px;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  box-shadow:
    0 0 20px rgba(59, 130, 246, 0.45),
    0 0 50px rgba(59, 130, 246, 0.15),
    inset 0 0 16px rgba(59, 130, 246, 0.12);
  pointer-events: none;
  z-index: 3;
}

/* «Строка контента» на экране */
.media-card__screen-icon::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 8px;
  right: 8px;
  height: 3px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 2px;
  box-shadow: 0 0 6px rgba(255,255,255,0.3);
}

.media-card__screen-icon::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 8px;
  width: 60%;
  height: 2px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

.media-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 30%,
    rgba(10, 10, 15, 0.8) 100%
  );
}

.media-card__badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(37, 99, 235, 0.85);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-white);
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.media-card__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.media-card__body {
  padding: var(--space-lg) var(--space-xl);
}

.media-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.media-card__address {
  font-size: var(--text-small);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.media-card__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.metric {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
}

.metric__value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-amber);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.metric__label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.media-card__description {
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.media-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================
   КАРТОЧКИ КЕЙСОВ
   ========================================== */

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-slow);
}

.case-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.case-card__image {
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
}

.case-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.15);
  position: relative;
}

.case-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: brightness(0.75) saturate(0.85);
  transition: transform 0.6s ease, filter 0.4s ease;
}

.case-card:hover .case-card__img {
  transform: scale(1.05);
  filter: brightness(0.55) saturate(0.9);
}

.case-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.7);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card:hover .case-card__overlay {
  opacity: 1;
}

.case-card__overlay-content {
  text-align: center;
  padding: var(--space-lg);
}

.case-card__overlay-text {
  font-size: var(--text-small);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.case-card__body {
  padding: var(--space-lg) var(--space-xl);
}

.case-card__category {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  margin-bottom: var(--space-sm);
}

.case-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-sm);
}

.case-card__meta {
  font-size: var(--text-small);
  color: var(--text-muted);
}

/* ==========================================
   КАРТОЧКИ ПРЕИМУЩЕСТВ
   ========================================== */

.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-blue);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.advantage-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--accent-blue-light);
  transition: all var(--transition-base);
}

.advantage-card:hover .advantage-card__icon {
  background: rgba(37, 99, 235, 0.2);
  box-shadow: var(--glow-blue);
}

.advantage-card__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-sm);
}

.advantage-card__text {
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================
   ФОРМЫ
   ========================================== */

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

.form-label {
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-white);
  font-size: var(--text-body);
  font-family: var(--font-body);
  transition: all var(--transition-base);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  border-color: var(--accent-blue);
  background: rgba(37, 99, 235, 0.05);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-error {
  font-size: var(--text-xs);
  color: #f87171;
  margin-top: 2px;
}

.form-input.is-error {
  border-color: #f87171;
}

/* Успешное сообщение */
.form-success {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.form-success__icon {
  width: 64px;
  height: 64px;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  color: #4ade80;
}

.form-success__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-sm);
}

.form-success__text {
  color: var(--text-secondary);
}

/* ==========================================
   МАРКЕРЫ КАРТЫ
   ========================================== */

.map-marker {
  width: 16px;
  height: 16px;
  background: var(--accent-blue);
  border: 2px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  position: relative;
  cursor: pointer;
}

.map-marker::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  background: rgba(37, 99, 235, 0.3);
  border-radius: 50%;
  animation: pulse-marker 2s ease infinite;
}

.map-marker::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(37, 99, 235, 0.15);
  border-radius: 50%;
  animation: pulse-marker 2s ease infinite 0.3s;
}

@keyframes pulse-marker {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(2); }
}

/* ==========================================
   ТЕГИ / ЧИПЫ
   ========================================== */

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.chip:hover,
.chip.is-active {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--border-accent);
  color: var(--accent-blue-light);
}

/* ==========================================
   POPUP / МОДАЛЬНОЕ ОКНО
   ========================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-base);
}

.modal-overlay.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal__header {
  padding: var(--space-xl) var(--space-2xl);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-white);
}

.modal__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-subtle);
}

.modal__close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
}

.modal__body {
  padding: var(--space-2xl);
}

/* ==========================================
   СЧЁТЧИКИ ЦИФР
   ========================================== */

.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--text-white);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  display: block;
}

/* ==========================================
   ЛОГОТИП КЛИЕНТОВ
   ========================================== */

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-xl);
  transition: all var(--transition-base);
}

.client-logo img {
  display: block;
  height: 28px;
  width: auto;
  max-width: 100px;
  object-fit: contain;
  /* Конвертируем любой логотип в белый для тёмного фона */
  filter: grayscale(1) brightness(0) invert(1);
  opacity: 0.45;
  transition: opacity var(--transition-base), filter var(--transition-base);
}

.client-logo:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-medium);
}

.client-logo:hover img {
  opacity: 0.8;
}

/* Светлая тема: логотипы тёмные */
[data-theme="light"] .client-logo img {
  filter: grayscale(1) brightness(0);
  opacity: 0.35;
}

[data-theme="light"] .client-logo:hover img {
  opacity: 0.65;
}

[data-theme="light"] .client-logo:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* ==========================================
   ПЕРЕКЛЮЧАТЕЛЬ ТЕМЫ
   ========================================== */

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  transform: rotate(20deg);
}

[data-theme="light"] .theme-toggle {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.12);
  color: var(--text-secondary);
}

[data-theme="light"] .theme-toggle:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-primary);
}

/* Иконки: в тёмной теме — солнце (нажать чтобы перейти в светлый день)
             в светлой теме — луна (нажать чтобы перейти в тёмную ночь) */
.theme-toggle__sun { display: block; }
.theme-toggle__moon { display: none; }

[data-theme="light"] .theme-toggle__sun { display: none; }
[data-theme="light"] .theme-toggle__moon { display: block; }

/* ==========================================
   СВЕТЛАЯ ТЕМА — КОМПОНЕНТЫ
   Проблема: --text-white в светлой теме = #0F172A (тёмный).
   Но на синих/цветных фонах (кнопки, бейджи) нужен БЕЛЫЙ.
   ========================================== */

/* Кнопка PRIMARY: синий градиент → текст всегда белый */
[data-theme="light"] .btn--primary {
  color: #FFFFFF !important;
}

/* Кнопка OUTLINE на светлом фоне: тёмная граница + тёмный текст */
[data-theme="light"] .btn--outline {
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--text-primary);
  background: transparent;
}

[data-theme="light"] .btn--outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(37, 99, 235, 0.05);
}

/* Кнопка AMBER: текст тёмный на янтарном фоне — ок, но исправим читаемость */
[data-theme="light"] .btn--amber {
  color: #1E293B;
}

/* Бейдж «Активен»: всегда белый текст на синем фоне */
[data-theme="light"] .media-card__badge {
  color: #FFFFFF;
}

/* Метрики внутри карточки: светлый bg на белом фоне = невидимо */
[data-theme="light"] .metric {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.08);
}

/* Карточка медиафасада: заголовок */
[data-theme="light"] .media-card__title {
  color: var(--text-primary);
}

/* Карточка медиафасада: тонкий бордер */
[data-theme="light"] .media-card {
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

/* Карточка кейсов */
[data-theme="light"] .case-card {
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

/* btn--icon на светлом фоне */
[data-theme="light"] .btn--icon {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
}

[data-theme="light"] .btn--icon:hover {
  background: rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 0, 0, 0.15);
}

/* Кнопка закрытия модала */
[data-theme="light"] .modal__close {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
}

[data-theme="light"] .modal__close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-primary);
}

/* Карточки преимуществ */
[data-theme="light"] .advantage-card {
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .advantage-card__title {
  color: var(--text-primary);
}

/* Фильтры кейсов (кнопки-теги) */
[data-theme="light"] .filter-btn {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
}

[data-theme="light"] .filter-btn.is-active,
[data-theme="light"] .filter-btn:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.25);
  color: var(--accent-blue);
}

/* ==========================================
   СТУПЕНЬКИ / ШАГИ
   ========================================== */

.step {
  display: flex;
  gap: var(--space-xl);
  position: relative;
}

.step__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-blue-light);
}

.step__content {}

.step__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: var(--space-xs);
}

.step__text {
  font-size: var(--text-small);
  color: var(--text-secondary);
}


/* ==========================================
   SCROLL-TO-TOP BUTTON
   ========================================== */

.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--accent-blue);
  border: 1px solid rgba(59,130,246,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease,
    transform 0.3s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-blue-light);
  box-shadow: 0 6px 28px rgba(37,99,235,0.55);
  transform: translateY(-2px);
}

.scroll-top:active {
  transform: translateY(0);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
  color: #fff;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .scroll-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}