@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

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

:root {
  --bg: #f8fafc;
  --surface: rgba(255, 255, 255, 0.65);
  --card: rgba(255, 255, 255, 0.75);
  --border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --dim: #475569;
  --muted: #64748b;
  --accent: #4f46e5;
  --accent-light: #6366f1;
  --accent-glow: rgba(99,102,241,0.06);
  --green: #10b981;
  --green-glow: rgba(16,185,129,0.1);
  --purple: #8b5cf6;
  --radius: 16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.88) 0%, rgba(99, 102, 241, 0.08) 50%, rgba(245, 158, 11, 0.06) 100%), url('/images/darts_bg_main.jpg') center/cover no-repeat fixed;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 80px 24px 60px;
  overflow: hidden;
}

.hero__bg {
  position: absolute; inset: 0; z-index: 0;
  background: transparent;
}

.hero__grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes pulse-glow { 0%,100% { opacity: 0.6; transform: scale(1); } 50% { opacity: 1; transform: scale(1.05); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }

.hero__orb {
  position: absolute; border-radius: 50%; filter: blur(80px); z-index: 0; animation: pulse-glow 6s ease-in-out infinite;
}
.hero__orb--1 { width: 400px; height: 400px; top: -100px; left: -100px; background: rgba(99,102,241,0.2); }
.hero__orb--2 { width: 300px; height: 300px; bottom: -50px; right: -50px; background: rgba(34,197,94,0.15); animation-delay: 3s; }
.hero__orb--3 { width: 200px; height: 200px; top: 40%; right: 20%; background: rgba(139,92,246,0.12); animation-delay: 1.5s; }

.hero__content {
  position: relative; z-index: 1;
  max-width: 1200px; width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__text { animation: fadeUp 1s ease-out; }

.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: 100px; padding: 6px 16px;
  font-size: 13px; font-weight: 600; color: var(--accent-light);
  margin-bottom: 24px;
}
.hero__badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: pulse-glow 2s infinite; }

.hero__title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 900; line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero__title span { background: linear-gradient(135deg, var(--accent-light), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.hero__desc { font-size: 18px; color: var(--dim); max-width: 480px; margin-bottom: 32px; line-height: 1.7; }

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; border-radius: 14px;
  font-size: 16px; font-weight: 700;
  text-decoration: none; border: none; cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff;
  box-shadow: 0 4px 24px rgba(99,102,241,0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(99,102,241,0.5); }
.btn--outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent-light); }
.btn__icon { font-size: 20px; }

.hero__phones {
  display: flex; gap: 0px; justify-content: center; align-items: center;
  animation: fadeUp 1s ease-out 0.3s both;
}

.app-mockup {
  width: 300px;
  animation: float 6s ease-in-out infinite;
  transition: transform 0.4s ease;
  filter: drop-shadow(0 20px 50px rgba(15, 23, 42, 0.15));
}
.app-mockup:hover { transform: translateY(-10px) scale(1.02); z-index: 10; }
.app-mockup--delayed { animation-delay: 1s; margin-left: -60px; margin-top: 60px; }
.app-mockup img { width: 100%; height: auto; display: block; border-radius: 32px; }

/* === SECTIONS === */
.section { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.section__label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--accent-light);
  text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 16px;
}
.section__title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; letter-spacing: -0.5px; margin-bottom: 16px; }
.section__desc { font-size: 16px; color: var(--dim); max-width: 560px; margin-bottom: 48px; }
.section--center { text-align: center; }
.section--center .section__desc { margin-inline: auto; }

/* === FEATURES GRID === */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.06), transparent 60%);
  opacity: 0; transition: opacity 0.35s;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.3); }
.feature-card:hover::before { opacity: 1; }

.feature-card__icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 16px;
  background: var(--accent-glow);
}
.feature-card__title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card__desc { font-size: 14px; color: var(--dim); line-height: 1.6; }

/* === SCREENSHOTS === */
.screenshots {
  display: flex; gap: 24px; justify-content: center;
  flex-wrap: wrap; padding-bottom: 20px;
}
.screenshot-wrap {
  border-radius: 32px; overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  transition: transform 0.4s ease;
  max-width: 400px;
}
.screenshot-wrap:hover { transform: scale(1.03); }
.screenshot-wrap img { width: 100%; height: auto; display: block; }

/* === STEPS === */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 28px;
  text-align: center; position: relative; counter-increment: step;
  transition: all 0.35s ease;
}
.step:hover { border-color: var(--accent); transform: translateY(-4px); }
.step__num {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; color: #fff;
  margin: 0 auto 16px;
}
.step__icon { font-size: 36px; margin-bottom: 12px; }
.step__title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step__desc { font-size: 14px; color: var(--dim); line-height: 1.6; }

.step-connector {
  display: none;
  position: absolute; right: -34px; top: 50%;
  width: 44px; height: 2px; background: var(--border);
}

/* === CTA === */
.cta {
  text-align: center; padding: 80px 24px;
  position: relative;
}
.cta__box {
  max-width: 700px; margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 40px;
  position: relative; overflow: hidden;
}
.cta__box::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(34,197,94,0.05));
}
.cta__box > * { position: relative; z-index: 1; }
.cta__title { font-size: 28px; font-weight: 800; margin-bottom: 12px; }
.cta__desc { font-size: 16px; color: var(--dim); margin-bottom: 28px; }
.cta__size { font-size: 13px; color: var(--muted); margin-top: 16px; }

/* === FOOTER === */
.footer {
  padding: 40px 24px;
  border-top: none;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}
.footer-card {
  max-width: 1000px;
  margin: 0 auto;
  padding: 30px 20px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0.30) 100%);
  border: 1px solid rgba(99, 102, 241, 0.20);
  border-radius: 16px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer__brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: var(--text); }
.footer__brand-icon { font-size: 24px; }
.footer__links { display: flex; gap: 16px; }
.footer__link {
  color: var(--dim); text-decoration: none; font-size: 14px;
  transition: color 0.2s;
}
.footer__link:hover { color: var(--accent-light); }
.footer__copy { width: 100%; text-align: center; font-size: 12px; color: var(--muted); margin-top: 20px; }

/* === REVEAL ANIMATION === */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero__content { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero__desc { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__phones { order: -1; }
  .app-mockup { width: 240px; }
  .app-mockup--delayed { margin-left: -40px; margin-top: 40px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; max-width: 400px; margin-inline: auto; }
}

@media (max-width: 600px) {
  .hero { padding: 60px 16px 40px; }
  .app-mockup { width: 180px; }
  .app-mockup--delayed { margin-left: -20px; margin-top: 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 16px; }
  .btn { padding: 14px 24px; font-size: 15px; }
  .cta__box { padding: 32px 20px; }
  .footer__inner { justify-content: center; text-align: center; }
}

/* Навигация DartsAI */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  box-shadow: 0 4px 20px -5px rgba(15, 23, 42, 0.05);
}
.nav-inner {
  max-width: 1800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent);
  text-decoration: none;
}
.nav-links { display: flex; gap: 6px; align-items: center; }
@media (max-width: 1550px) {
  .nav-inner { padding: 0 12px !important; }
  .nav-links { gap: 4px !important; }
  .nav-links a { padding: 5px 8px !important; font-size: 0.82rem !important; }
}
@media (max-width: 1420px) {
  .nav-inner { padding: 0 8px !important; }
  .nav-links { gap: 2px !important; }
  .nav-links a { padding: 4px 6px !important; font-size: 0.78rem !important; }
}
.nav-links a {
  color: var(--dim) !important;
  text-decoration: none !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  padding: 6px 12px !important;
  border-radius: 8px !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
}
.nav-links a:hover, .nav-links a.active {
  background: rgba(99, 102, 241, 0.08) !important;
  color: var(--accent) !important;
}
@media (max-width: 1380px) {
  .nav-links { display: none !important; }
  .nav-desktop-cta { display: none !important; }
}
.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 8px;
}
@media (max-width: 1380px) {
  .nav-divider { display: none !important; }
}
.nav-cta {
  background: #6366f1;
  color: #ffffff !important;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 12px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
  white-space: nowrap;
}
.nav-cta:hover {
  background: #4f46e5;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}

.nav-cta-outline {
  background: transparent !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  font-weight: 600 !important;
  padding: 10px 20px !important;
  border-radius: 12px !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  cursor: pointer !important;
}
.nav-cta-outline:hover {
  background: rgba(99, 102, 241, 0.08) !important;
  border-color: var(--accent) !important;
  color: var(--accent) !important;
}

.nav-cta-outline-accent {
  background: transparent !important;
  border: 1px solid var(--accent) !important;
  color: var(--accent) !important;
  font-weight: 600 !important;
  padding: 10px 20px !important;
  border-radius: 12px !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  cursor: pointer !important;
}
.nav-cta-outline-accent:hover {
  background: var(--accent) !important;
  color: #ffffff !important;
}

/* Мобильная навигация и элементы управления */
.nav-mobile-controls {
  display: none;
  align-items: center;
  gap: 8px;
}
@media (max-width: 1380px) {
  .nav-mobile-controls { display: flex !important; }
}

.nav-mobile-quick-btn {
  padding: 6px 12px;
  background: var(--accent);
  color: #ffffff !important;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 20px;
  text-decoration: none !important;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
  transition: transform 0.2s ease;
}
.nav-mobile-quick-btn:active {
  transform: scale(0.95);
}

.nav-mobile-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px 14px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--accent) !important;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}
.nav-mobile-toggle.open {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444 !important;
}

/* Оверлей маски для меню */
.nav-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  animation: fadeIn 0.2s ease-out;
}

/* Выпадающее Мобильное Меню */
.nav-mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  background: #ffffff;
  border-bottom: 2px solid rgba(99, 102, 241, 0.15);
  padding: 20px 20px 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 999;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
  animation: slideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.nav-mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.nav-mobile-section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--dim);
  margin: 12px 0 4px;
  text-transform: uppercase;
}
.nav-mobile-menu a {
  color: #0f172a !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  padding: 10px 12px !important;
  border-radius: 8px !important;
  background: rgba(248, 250, 252, 0.8) !important;
  border: 1px solid rgba(226, 232, 240, 0.8) !important;
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  transition: all 0.15s ease !important;
}
.nav-mobile-menu a:hover, .nav-mobile-menu a:active {
  background: rgba(99, 102, 241, 0.08) !important;
  color: var(--accent) !important;
  border-color: rgba(99, 102, 241, 0.2) !important;
}