/* ============================================
   POLYGON — Design System Styles
   ============================================ */

/* --- TOKENS --- */
:root {
  --bone:       #F1ECE0;
  --bone-dim:   #E5DFD0;
  --bone-dark:  #D8D0BE;
  --graphite:   #15161A;
  --graphite-2: #23252B;
  --graphite-3: #2E3038;
  --steel:      #6E6F75;
  --steel-dim:  rgba(110,111,117,0.2);
  --amber:      #FF6A1A;
  --amber-dim:  #C24E0E;
  --optic:      #B6FF3D;
  --blood:      #C73E1D;

  --ff-display: 'Bebas Neue', 'Arial Narrow', Arial, sans-serif;
  --ff-sans:    'Inter', system-ui, sans-serif;
  --ff-mono:    'JetBrains Mono', 'Courier New', monospace;

  --base:   8px;
  --radius: 2px;
  --max-w:  1440px;
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--ff-sans);
  background: var(--bone);
  color: var(--graphite);
  overflow-x: hidden;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
img, svg { display: block; max-width: 100%; }

/* --- COORDINATE GRID BACKGROUND --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(21,22,26,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21,22,26,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
}

/* --- TYPOGRAPHY --- */
.caption {
  font-family: var(--ff-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  line-height: 1.4;
}
.mono { font-family: var(--ff-mono); }

/* --- MARGINALIA --- */
.marginalia {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 0 12px;
  z-index: 10;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.marginalia .marg-item {
  font-family: var(--ff-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.6;
}
.marginalia .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
  display: inline-block;
  flex-shrink: 0;
}

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: rgba(241,236,224,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(21,22,26,0.08);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  font-size: 1.2rem;
  color: var(--amber);
  line-height: 1;
}
.logo-name {
  font-family: var(--ff-display);
  font-size: 1.5rem;
  letter-spacing: 0.12em;
  color: var(--graphite);
  line-height: 1;
}
.nav-links {
  display: flex;
  gap: 40px;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--graphite);
  transition: color 200ms;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--amber);
  transition: width 200ms ease-out;
}
.nav-links a:hover { color: var(--amber); }
.nav-links a:hover::after { width: 100%; }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--ff-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  transition: background 200ms, color 200ms;
  cursor: pointer;
}
.btn-booking {
  background: var(--graphite);
  color: var(--bone);
}
.btn-booking:hover { background: var(--amber); color: var(--graphite); }

.btn-booking-lg {
  background: var(--amber);
  color: var(--graphite);
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 700;
}
.btn-booking-lg:hover { background: var(--amber-dim); color: var(--bone); }

.btn-confirm {
  background: var(--graphite);
  color: var(--bone);
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 700;
  width: 100%;
  justify-content: space-between;
  border-radius: var(--radius);
}
.btn-confirm:hover { background: var(--amber); color: var(--graphite); }

.arrow { font-size: 1.1em; line-height: 1; }

/* ============ § 01 HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  padding: 120px 48px 64px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}
.live {
  display: flex;
  align-items: center;
  gap: 8px;
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--optic);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(6rem, 14vw, 13rem);
  line-height: 0.88;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--graphite);
  position: relative;
  z-index: 1;
  margin: auto 0;
}
.hero-line-1 { display: block; }
.hero-line-2 { display: block; color: var(--graphite); }
.hero-title em {
  font-style: normal;
  color: var(--amber);
  -webkit-text-stroke: 0px;
}

.hero-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  gap: 48px;
}
.hero-stats {
  display: flex;
  gap: 48px;
}
.stat {}
.stat-num {
  font-family: var(--ff-display);
  font-size: 3.5rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--graphite);
}
.stat-num small {
  font-size: 1.5rem;
  color: var(--steel);
}
.stat-label {
  font-family: var(--ff-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-top: 4px;
}
.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.from-price {
  color: var(--steel);
}

/* Декоративный крест в hero */
.hero::after {
  content: '';
  position: absolute;
  right: 80px;
  top: 50%;
  transform: translateY(-50%);
  width: 120px;
  height: 120px;
  background:
    linear-gradient(var(--graphite), var(--graphite)) center/1px 100% no-repeat,
    linear-gradient(var(--graphite), var(--graphite)) center/100% 1px no-repeat;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}

/* ============ SECTIONS SHARED ============ */
section {
  position: relative;
  z-index: 1;
}
.section-head {
  padding: 96px 48px 64px;
  border-bottom: 1px solid var(--steel-dim);
  margin-bottom: 0;
}
.section-head .caption { margin-bottom: 16px; }
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.section-title em {
  font-style: normal;
  color: var(--amber);
}
.section-head--dark .section-title { color: var(--bone); }
.section-head--dark .caption { color: rgba(241,236,224,0.5); }

/* ============ § 02 ДИСЦИПЛИНЫ ============ */
.disciplines { background: var(--bone); }
.disc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid var(--steel-dim);
}
.disc-card {
  padding: 48px 40px;
  border-right: 1px solid var(--steel-dim);
  border-bottom: 1px solid var(--steel-dim);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 200ms;
  cursor: pointer;
}
.disc-card:hover { background: var(--bone-dim); }
.disc-card--feature {
  background: var(--graphite);
  color: var(--bone);
}
.disc-card--feature .caption { color: rgba(241,236,224,0.5); }
.disc-card--feature:hover { background: var(--graphite-2); }
.disc-num {
  font-family: var(--ff-display);
  font-size: 4rem;
  line-height: 1;
  color: var(--bone-dark);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.disc-card--feature .disc-num { color: var(--graphite-2); }
.disc-title {
  font-family: var(--ff-display);
  font-size: 2.5rem;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-top: auto;
}
.disc-desc {
  font-size: 0.875rem;
  color: var(--steel);
  line-height: 1.55;
}
.disc-card--feature .disc-desc { color: rgba(241,236,224,0.55); }
.disc-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--steel-dim);
}
.disc-card--feature .disc-meta { border-color: rgba(241,236,224,0.1); }
.amber { color: var(--amber); font-size: 1.1em; }

/* ============ § 03 ПОЛИГОН ============ */
.range { background: var(--bone-dim); }
.range-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 500px;
}
.range-spec {
  padding: 64px 48px;
  border-right: 1px solid var(--steel-dim);
}
.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--steel-dim);
  gap: 24px;
}
.spec-row:last-child { border-bottom: none; }
.spec-val {
  font-size: 0.9375rem;
  font-weight: 500;
  text-align: right;
}
.range-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  background: var(--bone);
}
.range-svg { max-height: 480px; width: auto; }

/* ============ § 04 БРОНИРОВАНИЕ ============ */
.booking {
  background: var(--graphite);
  color: var(--bone);
}
.booking .section-head {
  border-bottom-color: rgba(241,236,224,0.1);
}
.booking-form {
  padding: 64px 48px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  max-width: 900px;
}
.bf-step {}
.bf-label { margin-bottom: 16px; }
.bf-segments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.seg {
  padding: 10px 20px;
  border: 1px solid rgba(241,236,224,0.2);
  color: rgba(241,236,224,0.7);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all 200ms;
  cursor: pointer;
}
.seg:hover {
  border-color: var(--bone);
  color: var(--bone);
}
.seg.active {
  background: var(--bone);
  color: var(--graphite);
  border-color: var(--bone);
  font-weight: 700;
}

/* Слоты времени */
.bf-slots {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.slot {
  width: 72px;
  padding: 10px 0;
  text-align: center;
  border: 1px solid rgba(241,236,224,0.2);
  color: rgba(241,236,224,0.7);
  font-family: var(--ff-mono);
  font-size: 0.8125rem;
  border-radius: var(--radius);
  transition: all 200ms;
  cursor: pointer;
}
.slot:hover:not(:disabled) {
  border-color: var(--bone);
  color: var(--bone);
}
.slot.active {
  background: var(--amber);
  color: var(--graphite);
  border-color: var(--amber);
  font-weight: 700;
}
.slot.busy {
  opacity: 0.25;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* Счётчик стрелков */
.bf-counter {
  display: flex;
  align-items: center;
  gap: 16px;
}
.cnt-btn {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(241,236,224,0.3);
  color: var(--bone);
  font-size: 1.25rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 200ms;
}
.cnt-btn:hover { border-color: var(--amber); color: var(--amber); }
.cnt-val {
  font-family: var(--ff-display);
  font-size: 3rem;
  line-height: 1;
  letter-spacing: -0.02em;
  min-width: 48px;
  text-align: center;
}
.cnt-hint { color: rgba(241,236,224,0.4); }

/* Summary */
.bf-summary {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 48px;
  border-top: 1px solid rgba(241,236,224,0.1);
}
.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.summary-val {
  font-family: var(--ff-display);
  font-size: 3rem;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--amber);
}
.btn-confirm { font-size: 1rem; }

/* ============ § 05 ОБУЧЕНИЕ ============ */
.training { background: var(--bone); }
.train-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid var(--steel-dim);
}
.train-card {
  padding: 48px 40px;
  border-right: 1px solid var(--steel-dim);
  border-bottom: 1px solid var(--steel-dim);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 200ms;
}
.train-card:hover { background: var(--bone-dim); }
.train-title {
  font-family: var(--ff-display);
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1;
}
.train-num {
  font-family: var(--ff-display);
  font-size: 5rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--bone-dark);
  margin: 8px 0;
}
.train-num small { font-size: 2rem; color: var(--steel); }
.train-card p { font-size: 0.875rem; color: var(--steel); }
.train-price {
  margin-top: auto;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--graphite);
}

/* ============ § 06 КОНТАКТ ============ */
.contact {
  background: var(--graphite-2);
  color: var(--bone);
}
.contact .section-head {
  border-bottom-color: rgba(241,236,224,0.1);
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-left: 1px solid rgba(241,236,224,0.1);
}
.contact-block {
  padding: 48px 40px;
  border-right: 1px solid rgba(241,236,224,0.1);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-val {
  font-size: 0.9375rem;
  line-height: 1.7;
}
.contact-val a { transition: color 200ms; }
.contact-val a:hover { color: var(--amber); }
.contact-val.mono {
  font-family: var(--ff-mono);
  font-size: 0.8125rem;
  color: rgba(241,236,224,0.7);
}

/* ============ FOOTER ============ */
.footer {
  background: var(--graphite);
  border-top: 1px solid rgba(241,236,224,0.08);
  padding: 32px 48px;
}
.foot-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.foot-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.foot-brand .logo-mark { color: var(--amber); }
.foot-brand .logo-name { color: var(--bone); font-size: 1.1rem; }
.foot-tag, .foot-rights { color: rgba(241,236,224,0.4); }

/* ============ SCROLL ANIMATIONS ============ */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}
[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ RESPONSIVE ============ */

/* Burger — скрыт на десктопе */
.burger { display: none; }
.nav-booking-mobile { display: none; }

/* --- Tablet 1100px --- */
@media (max-width: 1100px) {
  .disc-grid        { grid-template-columns: repeat(2, 1fr); }
  .range-grid       { grid-template-columns: 1fr; }
  .range-visual     { display: none; }
  .train-grid       { grid-template-columns: repeat(2, 1fr); }
  .contact-grid     { grid-template-columns: repeat(2, 1fr); }
}

/* --- Mobile 768px --- */
@media (max-width: 768px) {

  /* Marginalia */
  .marginalia { display: none; }

  /* ---- NAV ---- */
  .nav {
    padding: 0 20px;
    height: 60px;
    align-items: center;
  }
  .nav-booking-desktop { display: none; }

  /* Бургер */
  .burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 6px;
    z-index: 200;
    flex-shrink: 0;
  }
  .burger span {
    display: block;
    height: 1.5px;
    background: var(--graphite);
    border-radius: 1px;
    transition: transform 280ms ease, opacity 200ms ease, width 200ms ease;
    transform-origin: center;
  }
  .burger span:nth-child(1) { width: 24px; }
  .burger span:nth-child(2) { width: 18px; }
  .burger span:nth-child(3) { width: 24px; }
  .burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); width: 24px; }
  .burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); width: 24px; }

  /* Мобильное меню — выезжает сверху */
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bone);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 80px 32px 48px;
    gap: 8px;
    z-index: 150;
    transform: translateX(100%);
    transition: transform 320ms cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
  }
  .nav-links.open {
    transform: translateX(0);
    pointer-events: auto;
  }
  .nav-links .nav-link {
    font-family: var(--ff-display);
    font-size: 3.5rem;
    line-height: 1;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    color: var(--graphite);
    padding: 12px 0;
    border-bottom: 1px solid var(--steel-dim);
    width: 100%;
    transition: color 200ms;
  }
  .nav-links .nav-link::after { display: none; }
  .nav-links .nav-link:hover { color: var(--amber); }
  .nav-booking-mobile {
    display: inline-flex;
    margin-top: 24px;
    width: 100%;
    justify-content: center;
    padding: 16px 24px;
    font-size: 1rem;
  }

  /* ---- HERO ---- */
  .hero {
    padding: 80px 20px 48px;
    min-height: unset;
    height: auto;
    overflow: visible;
    justify-content: flex-start;
    gap: 28px;
  }
  .hero-meta-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .hero-title {
    font-size: clamp(2.4rem, 11.5vw, 5rem);
    margin: 0;
    line-height: 0.9;
    overflow-wrap: break-word;
    word-break: break-word;
  }
  .hero::after { display: none; }
  .hero-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    margin-top: 4px;
  }
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
    width: 100%;
  }
  .stat-num { font-size: 2.2rem; }
  .hero-cta { align-items: flex-start; width: 100%; }
  .btn-booking-lg { width: 100%; justify-content: space-between; }

  /* ---- SECTION HEAD ---- */
  .section-head { padding: 56px 20px 40px; }
  .section-title { font-size: clamp(2.5rem, 10vw, 4rem); }

  /* ---- ДИСЦИПЛИНЫ ---- */
  .disc-grid {
    grid-template-columns: 1fr;
    border-left: none;
  }
  .disc-card {
    padding: 32px 20px;
    border-left: none;
    border-right: none;
  }
  .disc-num { font-size: 3rem; }
  .disc-title { font-size: 2rem; }

  /* ---- ПОЛИГОН ---- */
  .range-spec { padding: 40px 20px; }
  .spec-row { padding: 16px 0; }
  .spec-val { font-size: 0.875rem; }

  /* ---- БРОНИРОВАНИЕ ---- */
  .booking-form { padding: 40px 20px; gap: 36px; }
  .bf-segments { gap: 8px; }
  .seg { padding: 10px 14px; font-size: 0.8125rem; }
  .bf-slots { gap: 6px; }
  .slot { width: 64px; padding: 10px 0; font-size: 0.75rem; }
  .cnt-val { font-size: 2.5rem; }
  .summary-val { font-size: 2.5rem; }
  .btn-confirm { padding: 16px 20px; font-size: 0.9375rem; }

  /* ---- ОБУЧЕНИЕ ---- */
  .train-grid { grid-template-columns: 1fr; border-left: none; }
  .train-card { padding: 32px 20px; border-left: none; border-right: none; }
  .train-num { font-size: 4rem; }

  /* ---- КОНТАКТ ---- */
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .contact-block { padding: 28px 20px; }
  .contact-val { font-size: 0.875rem; }

  /* ---- FOOTER ---- */
  .footer { padding: 28px 20px; }
  .foot-grid {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* --- Small mobile 400px --- */
@media (max-width: 400px) {
  .hero-title { font-size: clamp(2rem, 10vw, 3.5rem); }
  .stat-num { font-size: 2rem; }
  .section-title { font-size: clamp(2rem, 11vw, 3rem); }
  .contact-grid { grid-template-columns: 1fr; }
  .slot { width: 58px; font-size: 0.7rem; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
}