/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d0d14;
  --bg-2: #13131e;
  --bg-card: #181824;
  --border: rgba(255,255,255,0.07);
  --accent: #ff2d78;
  --accent-dim: rgba(255,45,120,0.12);
  --accent-glow: rgba(255,45,120,0.25);
  --text: #eeeef5;
  --text-muted: #7878a0;
  --text-dim: #44445a;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 8px 40px rgba(0,0,0,0.5);
  --font-head: 'Outfit', sans-serif;
  --font-body: 'Crimson Pro', Georgia, serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
address { font-style: normal; }

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  padding: 10px 20px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

/* ===== CONTAINER ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 100px 0; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
h3 { font-size: 1.15rem; font-weight: 600; font-family: var(--font-head); }
p { font-size: 1.1rem; color: var(--text-muted); line-height: 1.75; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: #ff4d8f;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-glow);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.04); }
.btn-lang {
  padding: 7px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  transition: var(--transition);
}
.btn-lang:hover { color: var(--accent); border-color: var(--accent-glow); }

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,20,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 28px;
}
.logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  margin-right: auto;
}
.logo span { color: var(--accent); }
.logo__icon { font-size: 1.1rem; }
.nav__list {
  display: flex;
  gap: 2px;
}
.nav__link {
  padding: 7px 13px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: 8px;
  transition: var(--transition);
}
.nav__link:hover, .nav__link.active { color: var(--text); background: rgba(255,255,255,0.05); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: 1fr 420px;
  align-items: center;
  gap: 60px;
  padding: 80px 24px;
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}
.hero__bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}
.hero__noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.4;
}
.hero__lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,45,120,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,45,120,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero__glow {
  position: absolute;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255,45,120,0.12) 0%, transparent 65%);
  top: -200px;
  right: -200px;
  animation: glowPulse 6s ease-in-out infinite;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: 100px;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
  width: fit-content;
}
.hero__title {
  margin-bottom: 10px;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
  display: block;
}
.hero__title-en {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-dim);
  margin-bottom: 24px;
  letter-spacing: 0.01em;
}
.hero__desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
.keyword {
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
}
.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__content { padding-top: 0; }

/* Browser Mockup */
.hero__visual { display: flex; justify-content: center; }
.mockup {
  width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6);
  animation: floatMockup 5s ease-in-out infinite;
}
.mockup__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.mockup__bar span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.mockup__bar span:nth-child(1) { background: #ff5f57; }
.mockup__bar span:nth-child(2) { background: #febc2e; }
.mockup__bar span:nth-child(3) { background: #28c840; }
.mockup__screen { padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.mockup__nav {
  height: 28px;
  background: var(--bg-2);
  border-radius: 6px;
}
.mockup__hero {
  height: 100px;
  background: linear-gradient(135deg, rgba(255,45,120,0.15), rgba(255,45,120,0.04));
  border-radius: 8px;
  border: 1px solid var(--accent-glow);
}
.mockup__cards { display: flex; gap: 8px; }
.mockup__card {
  flex: 1;
  height: 70px;
  background: var(--bg-2);
  border-radius: 8px;
  border: 1px solid var(--border);
}

/* ===== SECTION LABELS ===== */
.section-label {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  margin-bottom: 20px;
  color: var(--text);
}
.section-desc {
  max-width: 640px;
  margin-bottom: 56px;
  font-size: 1.15rem;
}

/* ===== ABOUT ===== */
.about { background: var(--bg-2); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: center;
}
.about__text p { margin-bottom: 16px; }
.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--accent-glow); transform: translateY(-3px); }
.stat-card__num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-card__label { font-size: 0.82rem; color: var(--text-muted); font-family: var(--font-head); }

/* ===== GOALS ===== */
.tasks-list { display: flex; flex-direction: column; gap: 16px; }
.task-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  align-items: flex-start;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.task-item:hover { border-color: var(--accent-glow); }
.task-item__num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent-glow);
  line-height: 1;
  padding-top: 4px;
}
.task-item__body h3 { margin-bottom: 8px; color: var(--text); }
.task-item__body p { margin: 0; font-size: 1rem; }

/* ===== METHODOLOGY ===== */
.methodology { background: var(--bg-2); }
.method__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 56px;
}
.method-card {
  padding: 28px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.method-card:hover { border-color: var(--accent-glow); transform: translateY(-4px); }
.method-card__icon { font-size: 2rem; margin-bottom: 14px; }
.method-card h3 { margin-bottom: 10px; font-size: 1rem; }
.method-card p { font-size: 0.9rem; line-height: 1.65; }
.tech-stack__title {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.tech-stack__grid { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-pill {
  padding: 7px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-head);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.tech-pill:hover { color: var(--accent); border-color: var(--accent-glow); }

/* ===== RESULTS ===== */
.results__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.result-item {
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.result-item:hover { border-color: var(--accent-glow); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.result-item__icon { font-size: 2.2rem; margin-bottom: 16px; }
.result-item h3 { margin-bottom: 10px; font-size: 1.05rem; }
.result-item p { font-size: 0.95rem; }

/* ===== CONTACT ===== */
.contact { background: var(--bg-2); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; }
.contact-item__icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.contact-item__label { font-family: var(--font-head); font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin-bottom: 4px; }
.contact-item__val { font-family: var(--font-head); font-weight: 600; font-size: 1rem; }
.contact-item__link { color: var(--accent); transition: var(--transition); }
.contact-item__link:hover { opacity: 0.75; }
.contact__links { display: flex; flex-direction: column; gap: 14px; }
.link-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.link-card:hover { border-color: var(--accent-glow); transform: translateX(6px); }
.link-card__icon { font-size: 1.8rem; flex-shrink: 0; }
.link-card__title { font-family: var(--font-head); font-weight: 700; font-size: 1rem; margin-bottom: 2px; }
.link-card__sub { font-size: 0.82rem; color: var(--text-muted); font-family: var(--font-head); }
.link-card__arrow { margin-left: auto; font-size: 1.2rem; color: var(--text-dim); transition: var(--transition); }
.link-card:hover .link-card__arrow { color: var(--accent); }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.footer__logo p { color: var(--text-dim); font-size: 0.88rem; font-family: var(--font-head); margin-top: 6px; }
.footer__links {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.footer__links a {
  padding: 6px 12px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--text-muted);
  border-radius: 8px;
  transition: var(--transition);
}
.footer__links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  flex-wrap: wrap;
  gap: 8px;
}
.footer__bottom p, .footer__bottom a { font-family: var(--font-head); font-size: 0.8rem; color: var(--text-dim); }
.footer__bottom a:hover { color: var(--text-muted); }

/* ===== ANIMATIONS ===== */
@keyframes glowPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}
@keyframes floatMockup {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero__content > * {
  animation: fadeInUp 0.7s ease both;
}
.hero__badge { animation-delay: 0.1s; }
.hero__title { animation-delay: 0.2s; }
.hero__title-en { animation-delay: 0.25s; }
.hero__desc { animation-delay: 0.3s; }
.hero__keywords { animation-delay: 0.4s; }
.hero__actions { animation-delay: 0.5s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .method__grid { grid-template-columns: repeat(2, 1fr); }
  .results__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav__list { display: none; }
  .nav__list.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    gap: 2px;
    z-index: 99;
  }
  .burger { display: flex; }
  .section { padding: 72px 0; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
  .task-item { grid-template-columns: 48px 1fr; gap: 16px; }
}
@media (max-width: 480px) {
  .hero { min-height: auto; padding: 60px 24px; }
  .results__grid { grid-template-columns: 1fr; }
  .method__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .hero__actions { flex-direction: column; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}