/*
 * UI Components
 * Все компоненты реализованы как CSS классы (BEM-like naming)
 */

/* ===== LAYOUT PRIMITIVES ===== */

/* Контейнер (центрирующий, с отступами) */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-48);
  padding-right: var(--space-48);
}

@media (max-width: 767px) {
  .container {
    padding-left: var(--space-24);
    padding-right: var(--space-24);
  }
}

@media (max-width: 479px) {
  .container {
    padding-left: var(--space-16);
    padding-right: var(--space-16);
  }
}

/* Сетка */
.grid {
  display: grid;
  gap: var(--space-24); /* Стандартный gap для карточек */
}

.grid--gap-32 {
  gap: var(--space-32);
}

.grid--gap-16 {
  gap: var(--space-16);
}

.grid--12 {
  grid-template-columns: repeat(12, 1fr);
}

.grid--8 {
  grid-template-columns: repeat(8, 1fr);
}

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

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

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

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

/* Адаптивные колонки для grid-12 */
/* Desktop L и Desktop (≥1024px) */
.grid__col--1 { grid-column: span 1; }
.grid__col--2 { grid-column: span 2; }
.grid__col--3 { grid-column: span 3; }
.grid__col--4 { grid-column: span 4; }
.grid__col--5 { grid-column: span 5; }
.grid__col--6 { grid-column: span 6; }
.grid__col--7 { grid-column: span 7; }
.grid__col--8 { grid-column: span 8; }
.grid__col--9 { grid-column: span 9; }
.grid__col--10 { grid-column: span 10; }
.grid__col--11 { grid-column: span 11; }
.grid__col--12 { grid-column: span 12; }

/* Tablet (768-1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .grid__col--1\@tablet { grid-column: span 1; }
  .grid__col--2\@tablet { grid-column: span 2; }
  .grid__col--3\@tablet { grid-column: span 3; }
  .grid__col--4\@tablet { grid-column: span 4; }
  .grid__col--5\@tablet { grid-column: span 5; }
  .grid__col--6\@tablet { grid-column: span 6; }
  .grid__col--7\@tablet { grid-column: span 7; }
  .grid__col--8\@tablet { grid-column: span 8; }
  .grid__col--9\@tablet { grid-column: span 9; }
  .grid__col--10\@tablet { grid-column: span 10; }
  .grid__col--11\@tablet { grid-column: span 11; }
  .grid__col--12\@tablet { grid-column: span 12; }
}

/* Mobile (480-767px) */
@media (min-width: 480px) and (max-width: 767px) {
  .grid__col--1\@mobile { grid-column: span 1; }
  .grid__col--2\@mobile { grid-column: span 2; }
  .grid__col--3\@mobile { grid-column: span 3; }
  .grid__col--4\@mobile { grid-column: span 4; }
  .grid__col--5\@mobile { grid-column: span 5; }
  .grid__col--6\@mobile { grid-column: span 6; }
  .grid__col--7\@mobile { grid-column: span 7; }
  .grid__col--8\@mobile { grid-column: span 8; }
  .grid__col--9\@mobile { grid-column: span 9; }
  .grid__col--10\@mobile { grid-column: span 10; }
  .grid__col--11\@mobile { grid-column: span 11; }
  .grid__col--12\@mobile { grid-column: span 12; }
}

/* Mobile S (<480px) */
@media (max-width: 479px) {
  .grid__col--1\@mobile-s { grid-column: span 1; }
  .grid__col--2\@mobile-s { grid-column: span 2; }
  .grid__col--3\@mobile-s { grid-column: span 3; }
  .grid__col--4\@mobile-s { grid-column: span 4; }
  .grid__col--5\@mobile-s { grid-column: span 5; }
  .grid__col--6\@mobile-s { grid-column: span 6; }
  .grid__col--7\@mobile-s { grid-column: span 7; }
  .grid__col--8\@mobile-s { grid-column: span 8; }
  .grid__col--9\@mobile-s { grid-column: span 9; }
  .grid__col--10\@mobile-s { grid-column: span 10; }
  .grid__col--11\@mobile-s { grid-column: span 11; }
  .grid__col--12\@mobile-s { grid-column: span 12; }
}

/* Desktop-специфичные колонки (≥1024px) */
@media (min-width: 1024px) {
  .grid__col--1\@desktop { grid-column: span 1; }
  .grid__col--2\@desktop { grid-column: span 2; }
  .grid__col--3\@desktop { grid-column: span 3; }
  .grid__col--4\@desktop { grid-column: span 4; }
  .grid__col--5\@desktop { grid-column: span 5; }
  .grid__col--6\@desktop { grid-column: span 6; }
  .grid__col--7\@desktop { grid-column: span 7; }
  .grid__col--8\@desktop { grid-column: span 8; }
  .grid__col--9\@desktop { grid-column: span 9; }
  .grid__col--10\@desktop { grid-column: span 10; }
  .grid__col--11\@desktop { grid-column: span 11; }
  .grid__col--12\@desktop { grid-column: span 12; }
}

/* Адаптивность базовых сеток (fallback для старого кода) */
@media (max-width: 1023px) {
  .grid--12,
  .grid--8,
  .grid--3col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .grid--12,
  .grid--8,
  .grid--4,
  .grid--3col,
  .grid--2col {
    grid-template-columns: 1fr;
  }
}

/* Вертикальный стек */
.stack {
  display: flex;
  flex-direction: column;
}

.stack--gap-8 { gap: var(--space-8); }
.stack--gap-16 { gap: var(--space-16); }
.stack--gap-24 { gap: var(--space-24); }
.stack--gap-32 { gap: var(--space-32); }
.stack--gap-48 { gap: var(--space-48); }

/* Секция (стандартные вертикальные отступы) */
.section {
  padding-top: var(--space-64);  /* 64px между секциями (уменьшено с 96px) */
  padding-bottom: var(--space-64);
  scroll-margin-top: calc(var(--space-64) + var(--space-16));
}

.section--sm {
  padding-top: var(--space-32);  /* 32px для менее важных секций (уменьшено с 48px) */
  padding-bottom: var(--space-32);
}

.section--lg {
  padding-top: var(--space-96);  /* 96px для особых hero секций (уменьшено с 128px) */
  padding-bottom: var(--space-96);
}

@media (max-width: 767px) {
  .section {
    padding-top: var(--space-64);  /* На мобилке меньше отступы */
    padding-bottom: var(--space-64);
  }

  .section--sm {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
  }

  .section--lg {
    padding-top: var(--space-96);
    padding-bottom: var(--space-96);
  }
}

/* Разделитель */
.divider {
  height: 1px;
  width: 100%;
  background-color: var(--border);
  border: none;
}

.divider--inset {
  width: calc(100% - var(--space-48) * 2);
  margin-left: auto;
  margin-right: auto;
}

.divider--vertical {
  width: 1px;
  height: 100%;
  min-height: 20px;
}

/* Анимированный разделитель (line-draw эффект) */
.divider--animated {
  transform-origin: left center;
  transform: scaleX(0);
  animation: lineDraw 280ms var(--ease-in-out) forwards;
}

@keyframes lineDraw {
  to {
    transform: scaleX(1);
  }
}

/* Grid Overlay усиленный (для hero секций) */
.section--grid-overlay {
  position: relative;
}

.section--grid-overlay::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: var(--grid-cell-size) var(--grid-cell-size);
  opacity: var(--grid-overlay-opacity-hero);
  pointer-events: none;
  z-index: 0;
}

.section--grid-overlay > * {
  position: relative;
  z-index: 1;
}

/* Cinematic section sweep */
.section--fx {
  position: relative;
  overflow: hidden;
}

.section--fx::before {
  content: '';
  position: absolute;
  inset: -30% -40%;
  background: linear-gradient(120deg,
    transparent 20%,
    rgba(0, 122, 255, 0.08) 40%,
    rgba(0, 200, 255, 0.16) 50%,
    rgba(0, 122, 255, 0.08) 60%,
    transparent 80%);
  opacity: 0;
  transform: translateX(-120%);
  pointer-events: none;
  z-index: 0;
}

.section--fx > * {
  position: relative;
  z-index: 1;
}

.section--fx.section--revealed::before {
  animation: sectionSweep 1.1s var(--ease-out);
}

@keyframes sectionSweep {
  0% {
    opacity: 0;
    transform: translateX(-120%);
  }
  30% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateX(120%);
  }
}

/* ===== MOTION UTILITIES ===== */
.js-enabled [data-animate] {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  filter: blur(6px);
  transition:
    opacity var(--reveal-duration, 320ms) var(--ease-out),
    transform var(--reveal-duration, 320ms) var(--ease-out),
    filter var(--reveal-duration, 320ms) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: transform, opacity, filter;
}

.js-enabled [data-animate].animate-in {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}

.js-enabled [data-animate='fade-in'] {
  transform: none;
  filter: none;
}

.js-enabled [data-animate='scale-in'] {
  transform: scale(0.96);
}

.js-enabled [data-animate='slide-left'] {
  transform: translate3d(-20px, 0, 0);
}

.js-enabled [data-animate='slide-right'] {
  transform: translate3d(20px, 0, 0);
}

.reduced-motion [data-animate] {
  opacity: 1 !important;
  transform: none !important;
  filter: none !important;
  transition: none !important;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  --magnet-duration: 180ms;
  transform: translate3d(
    var(--magnet-x, 0px),
    calc(var(--magnet-y, 0px) + var(--btn-lift, 0px)),
    0
  );
  transition:
    color 220ms var(--ease-out),
    background-color 260ms var(--ease-out),
    border-color 260ms var(--ease-out),
    box-shadow 280ms var(--ease-out),
    transform var(--magnet-duration) linear;
  user-select: none;
  will-change: transform;
}

.btn.is-magnetized {
  transition:
    color 180ms var(--ease-out),
    background-color 220ms var(--ease-out),
    border-color 220ms var(--ease-out),
    box-shadow 220ms var(--ease-out),
    transform var(--magnet-duration) linear;
}

/* Размеры */
.btn--sm {
  height: 36px;
  padding: 0 var(--space-16);
  font-size: 0.875rem; /* 14px */
}

.btn--md {
  height: 48px;
  padding: 0 var(--space-20, 20px);
  font-size: var(--font-size-body);
}

.btn--lg {
  height: 52px;
  padding: 0 var(--space-24);
  font-size: var(--font-size-body);
}

/* Варианты */
.btn--primary {
  background-color: var(--blue);
  color: var(--text-1);
}

.btn--primary:hover {
  background-color: color-mix(in srgb, var(--blue) 90%, white);
  --btn-lift: -2px;
  box-shadow: 0 10px 24px rgba(0, 122, 255, 0.35);
}

.btn--primary:active {
  --btn-lift: 0px;
  box-shadow: 0 6px 18px rgba(0, 122, 255, 0.25);
}

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

.btn--secondary:hover {
  background-color: var(--surface);
  border-color: var(--border-strong);
  --btn-lift: -2px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.btn--secondary:active {
  --btn-lift: 0px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.btn--danger {
  background-color: transparent;
  color: var(--red);
  border-color: var(--red);
}

.btn--danger:hover {
  background-color: rgba(255, 59, 48, 0.08);
}

/* Telegram кнопка (фирменный стиль) */
.btn--telegram {
  background: linear-gradient(135deg, #0088cc 0%, #006ba8 100%);
  color: var(--text-1);
  box-shadow: 0 0 30px rgba(0, 136, 204, 0.3);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn--telegram::before {
  content: '✈️';
  margin-right: var(--space-8);
  font-size: 1.1em;
}

.btn--telegram:not(:hover) {
  animation: telegramPulse 4s ease-out infinite;
}

.btn--telegram:hover {
  background: linear-gradient(135deg, #0096e0 0%, #0077bb 100%);
  --btn-lift: -2px;
  box-shadow: 0 0 50px rgba(0, 136, 204, 0.5);
}

.btn--telegram:active {
  --btn-lift: 0px;
  box-shadow: 0 0 30px rgba(0, 136, 204, 0.35);
}

/* Усиленный primary с градиентом и свечением */
.btn--primary-glow {
  background: linear-gradient(135deg, var(--blue) 0%, #0050d8 100%);
  box-shadow: 0 0 30px rgba(0, 122, 255, 0.3);
  color: var(--text-1);
  border: none;
}

.btn--primary-glow:hover {
  background: linear-gradient(135deg, #0088ff 0%, #0060e8 100%);
  --btn-lift: -2px;
  box-shadow: 0 0 50px rgba(0, 122, 255, 0.5);
}

.btn--primary-glow:active {
  --btn-lift: 0px;
  box-shadow: 0 0 30px rgba(0, 122, 255, 0.35);
}

/* CTA glint */
.btn--primary-glow::after,
.btn--telegram::after {
  content: '';
  position: absolute;
  inset: -80% -120%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: translateX(-60%) rotate(12deg);
  opacity: 0;
  transition:
    transform 620ms var(--ease-out),
    opacity 420ms var(--ease-out);
  pointer-events: none;
}

.btn--primary-glow:hover::after,
.btn--telegram:hover::after {
  opacity: 0.6;
  transform: translateX(60%) rotate(12deg);
}

.btn--primary-glow::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: inherit;
  border: 1px solid rgba(0, 122, 255, 0.45);
  opacity: 0.35;
  animation: ctaPulse 3.6s ease-out infinite;
  pointer-events: none;
}

@keyframes ctaPulse {
  0% {
    transform: scale(0.96);
    opacity: 0.5;
  }
  60% {
    transform: scale(1.08);
    opacity: 0.1;
  }
  100% {
    transform: scale(1.12);
    opacity: 0;
  }
}

@keyframes telegramPulse {
  0%, 100% {
    box-shadow: 0 0 28px rgba(0, 136, 204, 0.25);
  }
  50% {
    box-shadow: 0 0 60px rgba(0, 136, 204, 0.55);
  }
}

/* Состояния */
.btn:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

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

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

/* Loading state */
.btn--loading {
  position: relative;
  color: transparent !important;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-right-color: transparent;
  animation: buttonSpin 0.6s linear infinite;
}

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

/* ===== LINKS ===== */
.link {
  color: var(--text-2);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-in-out);
  position: relative;
}

.link:hover {
  color: var(--text-1);
}

.link--underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--blue);
  transition: width var(--duration-fast) var(--ease-in-out);
}

.link--underline:hover::after {
  width: 100%;
}

.link:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ===== CARDS ===== */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-32);  /* 32px padding для карточек (20-32 по ТЗ) */
  transform: translate3d(0, var(--card-raise, 0), 0) scale(var(--card-scale, 1));
  box-shadow: var(--card-shadow, none);
  transition:
    transform 320ms var(--ease-out),
    box-shadow 320ms var(--ease-out),
    border-color 220ms var(--ease-in-out),
    background-color 220ms var(--ease-in-out);
  will-change: transform, box-shadow;
}

@media (max-width: 767px) {
  .card {
    padding: var(--space-24);  /* 24px на мобилке */
  }
}

.card--interactive {
  cursor: pointer;
}

.card--interactive:hover {
  border-color: var(--border-strong);
  --card-raise: -4px;
  --card-shadow: 0 18px 38px rgba(0, 0, 0, 0.35);
}

.card--interactive:focus-within {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.card--highlight {
  border-width: 2px;
  border-color: var(--blue);
}

/* 3D tilt utility */
.fx-tilt {
  position: relative;
  perspective: 900px;
  transform-style: preserve-3d;
  transform: translate3d(0, var(--card-raise, 0), 0)
    scale(var(--card-scale, 1))
    rotateX(var(--tilt-x, 0deg))
    rotateY(var(--tilt-y, 0deg));
  transition:
    transform 280ms var(--ease-out),
    box-shadow 280ms var(--ease-out),
    border-color 220ms var(--ease-in-out),
    background-color 220ms var(--ease-in-out);
  will-change: transform;
}

.fx-tilt::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: radial-gradient(
    320px circle at var(--glare-x, 50%) var(--glare-y, 50%),
    rgba(255, 255, 255, 0.25),
    transparent 55%
  );
  opacity: 0;
  transition: opacity 240ms var(--ease-out);
  pointer-events: none;
  mix-blend-mode: screen;
}

.fx-tilt:hover::after,
.fx-tilt:focus-within::after {
  opacity: 0.6;
}

.fx-tilt .feature-card__icon,
.fx-tilt .platform-card__icon,
.fx-tilt .testimonial__author,
.fx-tilt .pricing-plan__badge,
.fx-tilt .pricing-plan__price,
.fx-tilt .config-type-card__icon,
.fx-tilt .import-method-card__icon,
.fx-tilt .server-card__title,
.fx-tilt .platform-card__name {
  transform: translateZ(18px);
  transition: transform 220ms var(--ease-out);
}

.fx-tilt:hover .feature-card__icon,
.fx-tilt:hover .platform-card__icon,
.fx-tilt:hover .testimonial__author,
.fx-tilt:hover .pricing-plan__badge,
.fx-tilt:hover .pricing-plan__price,
.fx-tilt:hover .config-type-card__icon,
.fx-tilt:hover .import-method-card__icon,
.fx-tilt:hover .server-card__title,
.fx-tilt:hover .platform-card__name {
  transform: translateZ(32px) scale(1.03);
}

/* Premium spotlight hover */
.fx-spotlight {
  position: relative;
  overflow: hidden;
}

.fx-spotlight::before {
  content: '';
  position: absolute;
  inset: -1px;
  background: radial-gradient(
    420px circle at var(--spotlight-x, 50%) var(--spotlight-y, 50%),
    rgba(0, 122, 255, 0.18),
    transparent 46%
  );
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
  pointer-events: none;
  mix-blend-mode: screen;
}

.fx-spotlight:hover::before,
.fx-spotlight:focus-within::before {
  opacity: 1;
}

/* ===== CHIPS & BADGES ===== */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  color: var(--text-2);
  background-color: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.chip--sm {
  padding: 4px 8px;
  font-size: 0.6875rem; /* 11px */
}

.chip--interactive {
  cursor: pointer;
}

.chip--interactive:hover {
  color: var(--text-1);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  font-size: 0.6875rem; /* 11px */
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: var(--text-1);
  background-color: var(--blue);
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge--blue {
  background-color: var(--blue);
}

.badge--recommended {
  background-color: var(--blue);
}

.badge--green {
  background-color: #34C759;
}

.badge--gray {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--text-2);
}

.badge--error {
  background-color: var(--red);
}

/* ===== METRICS ===== */
.metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);  /* 8px между значением и лейблом */
}

.metric__value {
  font-size: 1.5rem; /* 24px */
  font-weight: var(--font-weight-bold);
  color: var(--text-1);
  line-height: 1;
}

.metric__label {
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  color: var(--text-3);
  letter-spacing: var(--letter-spacing-micro);
  text-transform: uppercase;
  line-height: var(--line-height-micro);
}

.metric-group {
  display: flex;
  gap: var(--space-32);
  align-items: center;
}

.metric-group--divided .metric:not(:last-child) {
  padding-right: var(--space-32);
  border-right: 1px solid var(--border);
}

@media (max-width: 767px) {
  .metric-group {
    flex-direction: column;
    gap: var(--space-24);
    align-items: flex-start;
  }

  .metric-group--divided .metric:not(:last-child) {
    padding-right: 0;
    padding-bottom: var(--space-24);
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

/* ===== STATS (alias для metrics) ===== */
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.stat__value {
  font-size: 1.5rem; /* 24px */
  font-weight: var(--font-weight-bold);
  color: var(--text-1);
  line-height: 1;
}

.stat__label {
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  color: var(--text-3);
  letter-spacing: var(--letter-spacing-micro);
  text-transform: uppercase;
  line-height: var(--line-height-micro);
}

/* ===== DATA ROWS (для табличного вида) ===== */
.data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12) 0;  /* 12px сверху и снизу (10-16 по ТЗ) */
  border-bottom: 1px solid var(--border);
  min-height: 44px;  /* Минимум 44px для удобства чтения */
}

.data-row:first-child {
  padding-top: 0;
}

.data-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.data-row__label {
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  color: var(--text-3);
  letter-spacing: var(--letter-spacing-micro);
  text-transform: uppercase;
  line-height: var(--line-height-micro);
}

.data-row__value {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  color: var(--text-1);
  line-height: var(--line-height-body);
}

.data-row__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.data-row__status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-1);
}

.data-row__status-dot--online {
  background-color: var(--text-1);
}

.data-row__status-dot--offline {
  background-color: var(--red);
}

/* Также поддерживаем старый синтаксис .datarow для обратной совместимости */
.datarow {
  display: flex;
  justify-content: space-between;
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--border);
}

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

.datarow__label {
  font-size: var(--font-size-micro);
  color: var(--text-3);
  letter-spacing: var(--letter-spacing-micro);
}

.datarow__value {
  font-weight: var(--font-weight-semibold);
  color: var(--text-1);
}

.datarow__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.datarow__status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-1);
}

.datarow__status-dot--online {
  background-color: var(--text-1);
}

.datarow__status-dot--offline {
  background-color: var(--red);
}

/* ===== ALERTS ===== */
.alert {
  padding: var(--space-16) var(--space-20);
  border-radius: var(--radius-sm);
  border: 1px solid;
  font-size: var(--font-size-body);
}

.alert--info {
  background-color: var(--surface);
  border-color: var(--border);
  color: var(--text-2);
}

.alert--error {
  background-color: rgba(255, 59, 48, 0.08);
  border-color: rgba(255, 59, 48, 0.7);
  color: var(--red);
}

.alert__title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-8);
}

.alert__content {
  font-size: 0.9375rem; /* 15px */
}

/* ===== FORM CONTROLS ===== */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.field__label {
  font-size: var(--font-size-micro);
  color: var(--text-3);
  letter-spacing: var(--letter-spacing-micro);
}

.field__control {
  position: relative;
}

.input,
.select {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-16);
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  color: var(--text-1);
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.input:hover,
.select:hover {
  border-color: var(--border-strong);
}

.input:focus,
.select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.1);
}

.input:disabled,
.select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Кастомный select */
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.52)' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-16) center;
  background-size: 16px;
  padding-right: var(--space-48);
}

.field__help {
  font-size: var(--font-size-micro);
  color: var(--text-3);
}

.field__error {
  font-size: var(--font-size-micro);
  color: var(--red);
}

.field--error .input,
.field--error .select {
  border-color: rgba(255, 59, 48, 0.7);
  background-color: rgba(255, 59, 48, 0.08);
}

/* ===== CODE PANEL ===== */
.codepanel {
  position: relative;
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-20);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  overflow-x: auto;
}

.codepanel__copy {
  position: absolute;
  top: var(--space-12);
  right: var(--space-12);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.codepanel__copy:hover {
  color: var(--text-1);
  border-color: var(--border-strong);
}

.codepanel__copy:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.codepanel__copy.copied {
  color: var(--blue);
  border-color: var(--blue);
}

.codepanel--compact {
  padding: var(--space-12) var(--space-16);
  font-size: 0.75rem;
}

.codepanel--compact .codepanel__copy {
  width: 28px;
  height: 28px;
  top: var(--space-8);
  right: var(--space-8);
}

/* ===== ACCORDION (на базе details/summary) ===== */
.acc {
  border-bottom: 1px solid var(--border);
}

.acc:first-child {
  border-top: 1px solid var(--border);
}

.acc__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-24);  /* 24px между текстом и иконкой */
  padding: var(--space-20, 20px) 0;  /* 20px сверху и снизу */
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  color: var(--text-1);
  cursor: pointer;
  list-style: none;
  transition: color var(--duration-fast) var(--ease-in-out);
  user-select: none;
  min-height: 44px;  /* Минимум 44px для tap target */
}

@media (max-width: 767px) {
  .acc__summary {
    padding: var(--space-16) 0;  /* 16px на мобилке */
  }
}

.acc__summary:hover {
  color: var(--text-1);
}

.acc__summary::-webkit-details-marker {
  display: none;
}

.acc__summary:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Стили для SVG иконки в summary */
.acc__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;  /* Небольшой отступ для визуального выравнивания */
  color: var(--text-2);
  transition: transform var(--duration-medium) var(--ease-in-out);
}

.acc[open] .acc__icon {
  transform: rotate(180deg);
}

.acc__summary:hover .acc__icon {
  color: var(--text-1);
}

.acc__content {
  padding: 0 0 0 0;
  color: var(--text-2);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition:
    max-height 360ms var(--ease-out),
    opacity 240ms var(--ease-out),
    padding-bottom 240ms var(--ease-out);
}

.acc[open] .acc__content {
  max-height: 1400px;
  opacity: 1;
  padding-bottom: var(--space-24);
}

@media (max-width: 767px) {
  .acc__content {
    padding-bottom: 0;
  }

  .acc[open] .acc__content {
    padding-bottom: var(--space-20, 20px);  /* 20px на мобилке */
  }
}

.acc__content p {
  margin-bottom: var(--space-16);  /* 16px между параграфами */
}

.acc__content p:last-child {
  margin-bottom: 0;
}

.acc__content ul {
  margin: var(--space-16) 0;  /* 16px сверху и снизу списка */
  padding-left: var(--space-24);  /* 24px отступ слева */
}

.acc__content li {
  margin-bottom: var(--space-8);  /* 8px между элементами списка */
  color: var(--text-2);
  line-height: var(--line-height-body);
}

.acc__content li:last-child {
  margin-bottom: 0;
}

.acc__content strong {
  color: var(--text-1);
  font-weight: var(--font-weight-semibold);
}

.acc__content a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-in-out);
}

.acc__content a:hover {
  color: var(--text-1);
  text-decoration: underline;
  text-decoration-color: var(--blue);
  text-underline-offset: 2px;
}

.acc__content a:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Accordion animation handled via max-height/opacity transitions */

/* ===== TOAST УВЕДОМЛЕНИЯ ===== */
.toast {
  position: fixed;
  bottom: var(--space-24);
  right: var(--space-24);
  padding: var(--space-12) var(--space-20);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-size: var(--font-size-body);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: var(--z-index-toast);
  animation: toastSlideIn 200ms var(--ease-out);
}

@keyframes toastSlideIn {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.toast--success {
  border-color: var(--blue);
}

.toast--error {
  border-color: var(--red);
}

/* ===== SECTION HEADERS (общие стили для заголовков секций) ===== */
.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-48);  /* 48px отступ снизу внутри секции */
}

@media (max-width: 767px) {
  .section__header {
    margin-bottom: var(--space-32);  /* 32px на мобилке */
  }
}

.section__micro {
  display: inline-block;
  font-size: var(--font-size-micro);  /* 13px */
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-micro);
  letter-spacing: var(--letter-spacing-micro);  /* 0.08em */
  color: var(--text-3);
  text-transform: uppercase;
  margin-bottom: var(--space-16);  /* 16px до заголовка */
}

.section__title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-semibold);
  color: var(--text-1);
  margin-bottom: var(--space-16);  /* 16px до подзаголовка */
}

.section__subtitle {
  font-size: var(--font-size-body);
  color: var(--text-2);
  line-height: var(--line-height-body);
  margin-bottom: 0;
  max-width: 600px;  /* Ограничение ширины для читаемости */
  margin-left: auto;
  margin-right: auto;
}

.section__header {
  position: relative;
}

.section__header::after {
  content: '';
  display: block;
  width: 120px;
  height: 2px;
  margin: var(--space-24) auto 0;
  background: linear-gradient(90deg, transparent, rgba(0, 122, 255, 0.9), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 520ms var(--ease-out);
}

.section__header.animate-in::after {
  transform: scaleX(1);
}

/* ===== SERVER CARDS (для страницы серверов) ===== */
.server-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-20);  /* более компактный блок */
  display: flex;
  flex-direction: column;
  gap: var(--space-12);  /* компактнее по вертикали */
  transition: all var(--duration-medium) var(--ease-in-out);
  width: 100%;  /* Растянуть на всю ширину колонки */
  height: 100%;  /* Растянуть на всю высоту для одинаковой высоты карточек */
}

@media (max-width: 767px) {
  .server-card {
    padding: var(--space-24);  /* Одинаково на всех экранах */
  }
}

.server-card:hover {
  border-color: var(--border-strong);
  --card-raise: -4px;
  --card-scale: 1.01;
  --card-shadow: 0 20px 42px rgba(0, 0, 0, 0.35);
}

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

.server-card__title {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-1);
  margin: 0;
}

.server-card__subtitle {
  margin: 0;
  color: var(--text-2);
  font-size: var(--font-size-body);
}

.server-card__metrics {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-top: var(--space-12);
  border-top: 1px solid var(--border);
}

.server-card .data-row {
  padding: var(--space-8) 0;
  min-height: 32px;
}

@media (max-width: 767px) {
  .server-card__metrics {
    gap: 0;
  }
}

.server-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

/* ===== FEATURE CARDS (для секции features) ===== */
.feature-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-32);  /* 32px padding на десктопе */
  display: flex;
  flex-direction: column;
  gap: var(--space-16);  /* 16px между элементами внутри */
  transition: all var(--duration-medium) var(--ease-in-out);
}

@media (max-width: 767px) {
  .feature-card {
    padding: var(--space-24);  /* 24px на мобилке */
  }
}

.feature-card:hover {
  border-color: var(--border-strong);
  --card-raise: -4px;
  --card-scale: 1.01;
  --card-shadow: 0 20px 42px rgba(0, 0, 0, 0.35);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  color: var(--blue);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card__icon svg {
  width: 48px;
  height: 48px;
  display: block;
}

.feature-card__title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--text-1);
  margin: 0;
}

.feature-card__description {
  font-size: var(--font-size-body);
  color: var(--text-2);
  line-height: var(--line-height-body);
  margin: 0;
}

/* ===== SKIP LINK (для accessibility) ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--blue);
  color: white;
  padding: var(--space-8) var(--space-16);
  text-decoration: none;
  z-index: var(--z-index-modal);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: var(--space-16);
  left: var(--space-16);
}

/* ===== SR-ONLY (screen reader only) ===== */
.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;
}

/* ===== HEADER ACTIONS ===== */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

@media (max-width: 767px) {
  .header__actions .btn {
    display: none;
  }
}

/* ===== NAV TOGGLE ICON ===== */
.nav-toggle__icon {
  display: block;
  position: relative;
  width: 24px;
  height: 18px;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after,
.nav-toggle__icon span {
  content: '';
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--text-2);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.nav-toggle__icon::before {
  top: 0;
}

.nav-toggle__icon span {
  top: 8px;
}

.nav-toggle__icon::after {
  bottom: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before {
  transform: rotate(45deg);
  top: 8px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after {
  transform: rotate(-45deg);
  bottom: 8px;
}

/* ===== DRAWER FOOTER ===== */
.drawer__footer {
  padding: var(--space-24);
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-2);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-in-out);
}

.drawer__close:hover {
  color: var(--text-1);
}

.drawer__close:focus {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===== DRAWER OVERLAY ===== */
.drawer__overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-medium) var(--ease-in-out);
}

.drawer--open .drawer__overlay {
  opacity: 1;
  pointer-events: all;
}

.drawer__content {
  position: relative;
  width: 100%;
  max-width: 320px;
  height: 100%;
  background-color: var(--bg-0);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--duration-medium) var(--ease-in-out);
}

.drawer--open .drawer__content {
  transform: translateX(0);
}

/* ===== RESPONSIVE HELPERS ===== */
@media (max-width: 767px) {
  .mobile\:stack {
    flex-direction: column;
  }

  .mobile\:hidden {
    display: none !important;
  }

  .mobile\:w-full {
    width: 100% !important;
  }

  .mobile\:text-center {
    text-align: center !important;
  }
}

@media (min-width: 768px) {
  .desktop\:hidden {
    display: none !important;
  }
}

/* ===== FLOATING CTA (Mobile) ===== */
.floating-cta {
  position: fixed;
  bottom: 16px;
  left: 12px;
  right: 12px;
  z-index: 999;
  padding: 0 var(--space-16);
  display: none; /* Скрыто по умолчанию */
  animation: slideUpFade 300ms var(--ease-in-out) forwards;
}

@media (max-width: 768px) {
  .floating-cta {
    display: block;
  }

  .floating-cta .btn {
    width: 100%;
    min-height: 52px;
    font-size: 16px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== URGENCY BADGES ===== */
.urgency-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
  justify-content: center;
}

.urgency-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-16);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background-color: rgba(255, 255, 255, 0.02);
  font-size: 0.875rem;
  color: var(--text-2);
  white-space: nowrap;
  animation: badgePulse 2s ease-in-out infinite;
}

.urgency-badge--online {
  border-color: rgba(52, 199, 89, 0.3);
  color: rgba(52, 199, 89, 1);
}

.urgency-badge--offer {
  border-color: rgba(255, 149, 0, 0.3);
  color: rgba(255, 149, 0, 1);
}

@keyframes badgePulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* ===== HERO STATS ===== */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-32);
  margin-top: var(--space-48);
  padding-top: var(--space-32);
  border-top: 1px solid var(--border);
}

@media (max-width: 767px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  text-align: center;
}

.stat__value {
  font-size: 2.5rem; /* 40px */
  font-weight: var(--font-weight-bold);
  color: var(--text-1);
  line-height: 1;
}

.stat__label {
  font-size: 0.875rem; /* 14px */
  font-weight: var(--font-weight-medium);
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 479px) {
  .stat__value {
    font-size: 2rem; /* 32px */
  }
}

/* ===== TESTIMONIALS ===== */
.testimonials__grid {
  margin-top: var(--space-48);
}

.testimonial-card {
  padding: var(--space-32);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
  transition: all var(--duration-base) var(--ease-in-out);
}

.testimonial-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-strong);
  --card-raise: -4px;
  --card-scale: 1.01;
  --card-shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
}

.testimonial__text {
  font-size: var(--font-size-body);
  color: var(--text-2);
  line-height: 1.6;
  font-style: italic;
}

.testimonial__author {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-16);
  border-top: 1px solid var(--border);
}

.testimonial__name {
  font-weight: var(--font-weight-medium);
  color: var(--text-1);
  font-size: var(--font-size-body);
}

.testimonial__location {
  font-size: 0.875rem;
  color: var(--text-3);
}