/* ============================================================
   SAMARIN. — index.html (главная)
   Токены вдохновлены Figma: dark #050505 + accent #00D9FF
   Шрифты: Space Grotesk (заголовки) / Inter (текст) / JetBrains Mono (метки)
   ============================================================ */

:root {
  /* Colors */
  --bg: #050505;
  --bg-2: #0a0a0a;
  --bg-3: #0f0f10;
  --card: #141416;
  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);
  --text: #f0f0f2;
  --text-2: #b8b8c0;
  --text-3: #7e7e88;
  --text-4: #4a4a52;
  --accent: #00D9FF;
  --accent-dim: rgba(0, 217, 255, 0.15);
  --accent-bg: rgba(0, 217, 255, 0.08);
  --warn: #ff8585;
  --warn-dim: rgba(255, 80, 80, 0.15);

  /* Fonts */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --container-w: 1280px;
  --container-px: 80px;
  --section-py: 120px;

  /* Misc */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--f-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.logo {
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--text);
}

.nav {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav__link {
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.2s;
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}
.nav__link:hover::after,
.nav__link--active::after { width: 100%; }

.nav__link:hover,
.nav__link--active { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn--header { padding: 10px 20px; font-size: 13px; }
.btn--sm { padding: 8px 16px; font-size: 13px; }
.btn--lg { padding: 16px 32px; font-size: 15px; }

.btn--primary {
  background: var(--accent);
  color: var(--bg);
  position: relative;
  overflow: hidden;
}
.btn--primary:hover {
  background: #00c0e0;
  box-shadow: 0 0 24px rgba(0, 217, 255, 0.3);
}
.btn--primary:active {
  transform: scale(0.98);
}

.btn--outline {
  background: transparent;
  border-color: var(--text-4);
  color: var(--text);
  transition: all 0.3s ease;
}
.btn--outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: inset 0 0 20px rgba(0, 217, 255, 0.05);
  }

/* ============================================================
   ABOUT CARD
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.about-grid > div {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 28px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 217, 255, 0.12);
}
.about-card__label {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.about-card__text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 101;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: 0.3s ease;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 24px;
  z-index: 99;
  flex-direction: column;
  gap: 16px;
  transform: translateY(-10px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.mobile-nav.open { display: flex; transform: translateY(0); opacity: 1; }
.mobile-nav a { padding: 12px 0; font-size: 16px; }
.mobile-nav__cta {
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--r-sm);
  margin-top: 8px;
  text-align: center;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 200px 0 120px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: calc(100% / 8) 100%;
  pointer-events: none;
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50px); }
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}
.hero__orb--cyan {
  width: 500px; height: 500px;
  background: var(--accent);
  opacity: 0.3;
  top: -100px; right: -100px;
  animation: orbPulse 8s ease-in-out infinite;
}
.hero__orb--purple {
  width: 400px; height: 400px;
  background: rgba(128, 50, 230, 0.5);
  opacity: 0.4;
  bottom: 50px; left: -100px;
  animation: orbPulse 10s ease-in-out infinite reverse;
}
@keyframes orbPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.5; }
}

.hero__particles { position: absolute; inset: 0; pointer-events: none; }
.particle {
  position: absolute;
  width: 4px; height: 4px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.6;
  box-shadow: 0 0 12px var(--accent);
}
.particle:nth-child(1) { top: 20%; left: 15%; }
.particle:nth-child(2) { top: 60%; left: 80%; }
.particle:nth-child(3) { top: 80%; left: 25%; }
.particle:nth-child(4) { top: 30%; right: 20%; }
.particle:nth-child(5) { top: 70%; right: 35%; }

.hero__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 64px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 1100px;
  margin-bottom: 24px;
}

.hero__mop-help {
  font-size: 14px;
  color: var(--text-2);
  max-width: 900px;
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}

.hero__subtitle {
  font-family: var(--f-display);
  font-size: 22px;
  color: var(--text-2);
  margin-bottom: 16px;
  max-width: 900px;
}

.hero__desc {
  font-size: 16px;
  color: var(--text-2);
  max-width: 700px;
  margin-bottom: 40px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero__cost {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 60px;
}

.hero__metrics {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.metric__value {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}
.metric__label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

/* Glass card */
.glass-card {
  position: absolute;
  right: 80px;
  top: 200px;
  width: 240px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  animation: heroFadeIn 0.8s ease 0.9s forwards;
}
.glass-card__label {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
}
.glass-card__value {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.03em;
}
.glass-card__text {
  font-size: 12px;
  color: var(--text-2);
  margin-top: 8px;
}

/* ============================================================
   BLOCKS (общая стилистика)
   ============================================================ */
.block {
  padding: var(--section-py) 0;
  position: relative;
}

.block--services { background: var(--bg-2); }
.block--process { background: var(--bg); position: relative; }
.block--process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(0, 217, 255, 0.15), transparent);
}
.block--case { background: var(--bg-2); position: relative; }
.block--case::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(0, 217, 255, 0.15), transparent);
}
.block--contact { background: var(--bg); }

.block__label {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.block__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 48px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 1100px;
  margin-bottom: 24px;
}

.block__subtitle {
  font-size: 16px;
  color: var(--text-2);
  max-width: 900px;
  margin-bottom: 60px;
}

.block__price {
  font-size: 16px;
  color: var(--text);
  margin: 40px 0 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.block__caption {
  font-size: 14px;
  color: var(--text-3);
  max-width: 1280px;
  margin: 40px 0;
  line-height: 1.6;
}

.section--alt {
  background: var(--bg-2);
}

.cta-block {
  padding: 80px 0;
  text-align: center;
}
.cta-block h2 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 40px;
  margin-bottom: 16px;
  line-height: 1.1;
}
.cta-block__text {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   PAGE HEADER (подстраницы)
   ============================================================ */
.page-header {
  padding: 140px 0 60px;
}
.page-label {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
  opacity: 0;
  animation: heroFadeIn 0.6s ease 0.1s forwards;
}
.page-header h1 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 56px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 900px;
  opacity: 0;
  animation: heroFadeIn 0.6s ease 0.2s forwards;
}
.page-header__text {
  font-size: 16px;
  color: var(--text-2);
  max-width: 600px;
  line-height: 1.6;
  opacity: 0;
  animation: heroFadeIn 0.6s ease 0.3s forwards;
}

/* 404 */
.not-found {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
  padding: 120px 24px 60px;
}
.not-found__code {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 120px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.not-found__text {
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 32px;
}

/* ============================================================
   SERVICES — TIMELINE
   ============================================================ */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 48px;
}
.step {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
}
.step__num {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 16px;
}
.step__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: 12px;
}
.step__desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 20px;
}
.step__days {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.04em;
}
.step__arrow {
  font-size: 32px;
  color: var(--text-4);
  padding: 32px 16px;
  flex-shrink: 0;
  line-height: 1;
}
.steps__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.steps__price {
  font-size: 15px;
  color: var(--text-2);
  max-width: 500px;
}

/* ============================================================
   BLOCK 2: principles + 2-col
   ============================================================ */
.principles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.principle {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 24px;
  min-height: 200px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.principle:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 217, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 217, 255, 0.06);
}
.principle__num {
  font-family: var(--f-mono);
  font-size: 28px;
  color: var(--accent);
  display: block;
  margin-bottom: 24px;
  transition: transform 0.3s ease;
}
.principle:hover .principle__num {
  transform: scale(1.1);
}
.principle__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 12px;
}
.principle__desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.5;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.col-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 32px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.col-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 217, 255, 0.12);
}
.col-card--accent {
  border-color: rgba(0, 217, 255, 0.3);
  background: var(--bg-3);
}
.col-card--wide { min-height: 320px; }

.col-card__label {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.col-card__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: 20px;
}
.col-card__text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 16px;
}
.col-card__list { font-size: 14px; color: var(--text-2); line-height: 1.8; }
.col-card__list li { margin-bottom: 6px; }
.col-card__meta {
  font-size: 12px;
  color: var(--text-4);
  margin-top: 16px;
}
.col-card__cta-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin-top: 16px;
}
.col-card__cta-text strong { color: var(--accent); }

/* ============================================================
   BLOCK 4: contact cards
   ============================================================ */
.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 217, 255, 0.15);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-item { margin-bottom: 32px; }
.contact-item__label {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.contact-item__value {
  font-size: 18px;
  color: var(--text);
  font-weight: 500;
}
.contact-item__value a { color: var(--accent); }
.contact-item__value a:hover { text-decoration: underline; }

.portfolio-empty {
  text-align: center;
  padding: 60px 0;
}
.portfolio-empty h2 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 32px;
  margin-bottom: 16px;
}
.portfolio-empty__text {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 32px;
}

.contact-card--primary {
  border-color: rgba(0, 217, 255, 0.25);
  background: var(--bg-3);
}

.contact-card__label {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.contact-card__value {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 28px;
  color: var(--text);
  word-break: break-all;
  display: block;
  margin-bottom: 8px;
}
.contact-card__meta {
  font-size: 12px;
  color: var(--text-4);
  margin-top: auto;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form-wrap {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}
.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.form-input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 12px 16px;
  font-family: var(--f-body);
  font-size: 14px;
  color: var(--text);
  transition: border-color 0.2s;
  outline: none;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}
.form-input::placeholder { color: var(--text-4); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-3);
}
.form-checkbox input { margin-top: 3px; accent-color: var(--accent); }
.form-checkbox a { color: var(--accent); text-decoration: underline; }
.form-note {
  font-size: 12px;
  color: var(--text-4);
  margin-top: 16px;
}
.contact-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-side .contact-card { padding: 24px; }
.contact-card__text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 60px 0 32px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}
.footer__brand {
  font-family: var(--f-body);
  font-weight: 700;
  font-size: 16px;
}
.footer__contacts {
  display: flex;
  gap: 32px;
  font-size: 13px;
  color: var(--text-2);
}
.footer__contacts a:hover { color: var(--accent); }

.footer__nav {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
  font-size: 13px;
  color: var(--text-3);
}
.footer__nav a:hover { color: var(--accent); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-4);
}
.footer__bottom a:hover { color: var(--accent); }

/* ============================================================
   INLINE-STYLE REPLACEMENTS
   ============================================================ */

.contact-item__value--format { font-size: 1rem; font-weight: 500; line-height: 1.7; }

.contact-cta { margin-top: 3rem; }

.works-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.privacy-meta { margin-top: 3rem; font-size: 0.8125rem; color: var(--text-4); }

/* ============================================================
   HERO ENTRANCE ANIMATION
   ============================================================ */
.hero__title, .hero__subtitle, .hero__desc, .hero__cta, .hero__cost, .hero__metrics {
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
.block__label { animation-delay: 0.1s; }
.hero__title { animation-delay: 0.2s; }
.hero__mop-help { animation-delay: 0.3s; }
.hero__subtitle { animation-delay: 0.4s; }
.hero__desc { animation-delay: 0.5s; }
.hero__cta { animation-delay: 0.6s; }
.hero__cost { animation-delay: 0.7s; }
.hero__metrics { animation-delay: 0.8s; }

@keyframes heroFadeIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   STEP HOVER
   ============================================================ */
.step {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.step:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 217, 255, 0.08);
  border-color: rgba(0, 217, 255, 0.2);
}

/* ============================================================
   PARTICLE ANIMATION
   ============================================================ */
@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-20px) translateX(10px); }
  50% { transform: translateY(-10px) translateX(-10px); }
  75% { transform: translateY(-25px) translateX(5px); }
}
.particle {
  animation: float 6s ease-in-out infinite;
}
.particle:nth-child(2) { animation-delay: -1s; animation-duration: 7s; }
.particle:nth-child(3) { animation-delay: -2s; animation-duration: 5s; }
.particle:nth-child(4) { animation-delay: -3s; animation-duration: 8s; }
.particle:nth-child(5) { animation-delay: -4s; animation-duration: 6s; }

/* ============================================================
   SVG ARROW
   ============================================================ */
.step__arrow svg {
  display: block;
  width: 32px;
  height: 32px;
  transition: transform 0.3s ease;
}
.step:hover ~ .step__arrow svg,
.step__arrow:hover svg {
  transform: translateX(4px);
}

/* ============================================================
   COOKIE BANNER
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  padding: 16px 24px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--text-2);
  transition: opacity 0.4s ease, transform 0.4s ease;
  opacity: 1;
  transform: translateY(0);
}
.cookie-banner.hidden {
  opacity: 0;
  transform: translateY(100%);
  pointer-events: none;
}
.cookie-banner a { color: var(--accent); text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: 8px; flex-shrink: 0; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  :root { --container-px: 40px; }
  .hero { padding: 160px 0 80px; }
  .hero__title { font-size: 48px; }
  .hero__metrics { gap: 40px; }
  .block__title { font-size: 36px; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .steps { gap: 12px; }
  .step__arrow { padding: 32px 8px; font-size: 24px; }
  .page-header { padding: 120px 0 40px; }
  .cta-block { padding: 60px 0; }
  .glass-card { display: none; }
  .contact-side { grid-template-columns: 1fr 1fr; }
  .footer__contacts { flex-direction: column; gap: 4px; align-items: flex-end; }
  .contact-form-wrap { grid-template-columns: 1fr; }
  .contact-side { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
}

@media (max-width: 768px) {
  :root {
    --container-px: 20px;
    --section-py: 80px;
  }
  .nav, .btn--header { display: none; }
  .hamburger { display: flex; }
  .header__inner { gap: 16px; }

  .hero { padding: 140px 0 80px; }
  .hero__title { font-size: 36px; }
  .hero__mop-help { font-size: 13px; }
  .hero__subtitle { font-size: 18px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { text-align: center; }
  .hero__metrics { gap: 32px; }
  .metric__value { font-size: 40px; }

  .block__title { font-size: 28px; }
  .page-header h1 { font-size: 36px; }
  .page-header { padding: 120px 0 40px; }
  .not-found__code { font-size: 80px; }
  .about-grid,
  .two-col, .principles { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }
  .steps { flex-direction: column; }
  .step { padding: 24px; }
  .step__arrow { transform: rotate(90deg); padding: 8px 0; text-align: center; }
  .step__title { font-size: 20px; }
  .footer__top, .footer__bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer__nav { flex-wrap: wrap; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
  .cta-block { padding: 60px 0; }
  .cta-block h2 { font-size: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-side { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
}