/* GLOBAL RESET & VARIABLES */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  /* Палитра: никакого синего, тёмная студия с теплыми и мятными акцентами */
  --sis-bg: #07090c;
  --sis-layer: #10131b;
  --sis-layer-soft: #151823;
  --sis-border-subtle: rgba(255, 255, 255, 0.06);

  --sis-amber: #f2b46a;
  --sis-amber-soft: rgba(242, 180, 106, 0.16);
  --sis-mint: #7be1bf;
  --sis-mauve: #f58ab2;
  --sis-text-main: #f5f2eb;
  --sis-text-soft: #c5c1b8;
  --sis-text-muted: #8b867e;
  --sis-shadow-soft: 0 24px 60px rgba(0, 0, 0, 0.6);

  --sis-radius-xl: 24px;
  --sis-radius-l: 18px;
  --sis-radius-m: 12px;
  --sis-radius-pill: 999px;

  --sis-shell-width: 1120px;

  --sis-header-height-desktop: 72px;
  --sis-header-height-mobile: 64px;

  --sis-ease-soft: cubic-bezier(0.21, 0.79, 0.34, 0.99);
}

/* Локальные шрифты (файлы .ttf должны лежать в /fonts) */
@font-face {
  font-family: "StillIce Display";
  src: url("../fonts/SpaceGrotesk-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "StillIce Sans";
  src: url("../fonts/Manrope-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "StillIce Sans";
  src: url("../fonts/Manrope-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "StillIce Sans";
  src: url("../fonts/Manrope-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* BASE */
html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

.sis-body {
  min-height: 100vh;
  background: radial-gradient(circle at top, #141824 0, #07090c 46%, #030406 100%);
  color: var(--sis-text-main);
  font-family: "StillIce Sans", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Ограничение ширины изображений */
img {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

.sis-image-limited,
.sis-hero-image {
  max-width: 350px;
}

/* SHELL */
.sis-shell {
  max-width: var(--sis-shell-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* HEADER */
.sis-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 40;
  height: var(--sis-header-height-mobile);
  background: linear-gradient(
    to bottom,
    rgba(7, 9, 12, 0.96),
    rgba(7, 9, 12, 0.9),
    rgba(7, 9, 12, 0.8),
    transparent
  );
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sis-header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* LOGO */
.sis-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--sis-text-main);
}

.sis-logo-mark {
  inline-size: 32px;
  block-size: 32px;
  border-radius: 40% 60% 55% 45%;
  background: radial-gradient(circle at 10% 0, var(--sis-amber) 0, #b66b2d 46%, #3a2510 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "StillIce Display", system-ui, sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sis-logo-text {
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sis-text-soft);
}

/* NAV */
.sis-nav {
  display: none;
}

.sis-nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.sis-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.86rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--sis-text-muted);
  transition: color 200ms var(--sis-ease-soft);
}

.sis-nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  block-size: 2px;
  border-radius: 999px;
  transform-origin: center;
  transform: scaleX(0);
  background: linear-gradient(to right, var(--sis-mint), var(--sis-amber));
  bottom: -0.3rem;
  transition: transform 220ms var(--sis-ease-soft);
}

.sis-nav-link:hover {
  color: var(--sis-text-main);
}

.sis-nav-link:hover::after,
.sis-nav-link--active::after {
  transform: scaleX(1);
}
/* BURGER — CIRCLE WITH ICE DOTS */
.sis-burger {
  position: relative;
  inline-size: 40px;
  block-size: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    radial-gradient(circle at 30% 0, rgba(242, 180, 106, 0.3), transparent 60%),
    radial-gradient(circle at 70% 90%, rgba(123, 225, 191, 0.2), transparent 65%),
    rgba(12, 15, 24, 0.96);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.6);
  transition:
    background 200ms var(--sis-ease-soft),
    border-color 200ms var(--sis-ease-soft),
    box-shadow 200ms var(--sis-ease-soft),
    transform 120ms ease-out;
}

.sis-burger:hover {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.8);
  transform: translateY(-1px);
}

/* маленькие «лунки» */
.sis-burger-bar {
  position: absolute;
  inline-size: 5px;
  block-size: 5px;
  border-radius: 50%;
  background: var(--sis-text-main);
  box-shadow: 0 0 10px rgba(245, 242, 235, 0.8);
  transition:
    transform 200ms var(--sis-ease-soft),
    opacity 160ms var(--sis-ease-soft);
}

/* левая точка */
.sis-burger-bar:nth-child(1) {
  bottom: 12px;
  left: 11px;
}

/* центральная */
.sis-burger-bar:nth-child(2) {
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
}

/* правая */
.sis-burger-bar:nth-child(3) {
  bottom: 12px;
  right: 11px;
}

/* лёгкий ховер по точкам */
.sis-burger:hover .sis-burger-bar:nth-child(1),
.sis-burger:hover .sis-burger-bar:nth-child(3) {
  transform: translateY(-1px);
}

.sis-burger:hover .sis-burger-bar:nth-child(2) {
  transform: translate(-50%, -1px);
}

/* крест при открытом меню */
.sis-burger::before,
.sis-burger::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  inline-size: 18px;
  block-size: 2px;
  border-radius: 999px;
  background: #f5f2eb;
  transform-origin: center;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.6) rotate(0deg);
  transition:
    opacity 200ms var(--sis-ease-soft),
    transform 220ms var(--sis-ease-soft);
}

/* состояние open */
.sis-nav-open .sis-burger {
  background:
    radial-gradient(circle at 30% 0, rgba(242, 180, 106, 0.55), transparent 60%),
    radial-gradient(circle at 70% 90%, rgba(123, 225, 191, 0.4), transparent 65%),
    rgba(5, 7, 13, 0.98);
  border-color: rgba(255, 255, 255, 0.6);
}

/* крест */
.sis-nav-open .sis-burger::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotate(40deg);
}

.sis-nav-open .sis-burger::after {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotate(-40deg);
}

/* прячем точки при открытом меню */
.sis-nav-open .sis-burger-bar {
  opacity: 0;
  transform: translateY(-4px) scale(0.7);
}


/* MOBILE NAV OVERLAY */
.sis-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: radial-gradient(circle at top, rgba(11, 16, 26, 0.98), rgba(4, 5, 9, 0.98));
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms var(--sis-ease-soft);
}

.sis-nav-overlay--visible {
  opacity: 1;
  pointer-events: auto;
}

.sis-nav-overlay-inner {
  inline-size: 100%;
  block-size: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sis-nav-overlay-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sis-nav-overlay-item {
  padding-inline: 1.5rem;
  padding-block: 0.7rem;
}

.sis-nav-overlay-link {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
  text-decoration: none;
  color: var(--sis-text-main);
  font-size: 1.1rem;
}

.sis-nav-overlay-note {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--sis-text-muted);
}

/* MAIN WRAPPER */
.sis-main {
  padding-top: calc(var(--sis-header-height-mobile) + 18px);
}

/* SECTION BASE */
.sis-section {
  padding-block: 3.5rem;
}

.sis-kicker {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sis-mint);
}

.sis-mark {
  font-size: 0.78rem;
  color: var(--sis-text-muted);
}

/* FOOTER */
.sis-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(circle at top left, rgba(242, 180, 106, 0.1), transparent 55%),
    radial-gradient(circle at top right, rgba(123, 225, 191, 0.09), transparent 45%),
    #050609;
  padding-block: 2.5rem 2rem;
}

.sis-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sis-footer-title {
  font-family: "StillIce Display", system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.82rem;
  color: var(--sis-text-soft);
}

.sis-footer-text {
  margin-top: 0.35rem;
  max-width: 36rem;
  font-size: 0.9rem;
  color: var(--sis-text-soft);
}

.sis-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.sis-footer-heading {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--sis-mint);
  margin-bottom: 0.4rem;
}

.sis-footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sis-footer-item {
  font-size: 0.86rem;
  color: var(--sis-text-muted);
  padding-block: 0.2rem;
}

.sis-footer-link {
  position: relative;
  display: inline-flex;
  cursor: default;
}

.sis-footer-meta {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.75rem;
}

.sis-footer-meta-text {
  font-size: 0.78rem;
  color: var(--sis-text-muted);
}

/* REVEAL ANIMATION */
.js-sis-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 420ms var(--sis-ease-soft),
    transform 420ms var(--sis-ease-soft),
    box-shadow 420ms var(--sis-ease-soft);
}

.sis-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* DESKTOP BREAKPOINTS */
@media (min-width: 768px) {
  .sis-header {
    height: var(--sis-header-height-desktop);
  }

  .sis-main {
    padding-top: calc(var(--sis-header-height-desktop) + 24px);
  }

  .sis-nav {
    display: block;
  }

  .sis-burger {
    display: none;
  }

  .sis-footer-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .sis-shell {
    padding-inline: 2rem;
  }
}
html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  width: 100%;
  overflow-x: hidden;
}
.sis-logo-column {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.sis-logo-text-main {
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sis-text-soft);
}

.sis-logo-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sis-text-muted);
}

/* правая часть хедера: индикатор + бургер */
.sis-header-right {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}

/* «состояние льда в голове» */
.sis-ice-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    radial-gradient(circle at 0 0, rgba(242, 180, 106, 0.35), transparent 60%),
    rgba(7, 9, 14, 0.96);
}

.sis-ice-status-dot {
  inline-size: 8px;
  block-size: 8px;
  border-radius: 50%;
  background: var(--sis-mint);
  box-shadow: 0 0 10px rgba(123, 225, 191, 0.9);
}

.sis-ice-status-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sis-text-soft);
}

/* на очень маленьких экранах убираем индикатор, чтобы не жать */
@media (max-width: 540px) {
  .sis-ice-status {
    display: none;
  }
}
/* ========== FOOTER ========== */

.sis-footer {
  margin-top: 3.5rem;
  padding-block: 2.3rem 2rem;
  background: radial-gradient(circle at 0 0, rgba(242, 180, 106, 0.14), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(123, 225, 191, 0.16), transparent 55%),
    #050507;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sis-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* верхняя часть */
.sis-footer-primary {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr);
  gap: 1.4rem;
  align-items: center;
}

.sis-footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.sis-footer-mark {
  inline-size: 32px;
  block-size: 32px;
  border-radius: 40% 60% 55% 45%;
  background: radial-gradient(circle at 10% 0, var(--sis-amber), #b66b2d 46%, #3a2510 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "StillIce Display", system-ui, sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #130c07;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6);
}

.sis-footer-brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.sis-footer-title {
  margin: 0;
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sis-text-soft);
}

.sis-footer-subtitle {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sis-text-muted);
}

/* фазы дня */
.sis-footer-phases {
  position: relative;
  border-radius: 999px;
  padding: 0.5rem 0.75rem;
  background: radial-gradient(circle at 0 50%, rgba(242, 180, 106, 0.32), transparent 60%),
    radial-gradient(circle at 100% 50%, rgba(123, 225, 191, 0.28), transparent 60%),
    rgba(8, 10, 16, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.16);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  overflow: hidden;
}

.sis-footer-phase {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sis-text-soft);
}

.sis-footer-phase-dot {
  inline-size: 8px;
  block-size: 8px;
  border-radius: 50%;
  background: var(--sis-mint);
  box-shadow: 0 0 10px rgba(123, 225, 191, 0.9);
}

/* мягкая анимация «пульса» по фазам */
.sis-footer-phase--before .sis-footer-phase-dot {
  animation: sis-footer-pulse 7s ease-in-out infinite;
}

.sis-footer-phase--on .sis-footer-phase-dot {
  animation: sis-footer-pulse 7s ease-in-out infinite 2.3s;
}

.sis-footer-phase--after .sis-footer-phase-dot {
  animation: sis-footer-pulse 7s ease-in-out infinite 4.6s;
}

@keyframes sis-footer-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.4);
    opacity: 1;
  }
}

/* навигация */
.sis-footer-nav {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.sis-footer-link {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sis-text-muted);
  text-decoration: none;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    color 160ms var(--sis-ease-soft),
    border-color 160ms var(--sis-ease-soft),
    background 160ms var(--sis-ease-soft),
    transform 120ms ease-out;
}

.sis-footer-link:hover {
  color: var(--sis-text-main);
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(12, 14, 22, 0.96);
  transform: translateY(-1px);
}

/* нижняя часть */
.sis-footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 0.8rem;
}

.sis-footer-copy {
  margin: 0;
  font-size: 0.78rem;
  color: var(--sis-text-muted);
}

.sis-footer-meta-right {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.sis-footer-meta-link {
  font-size: 0.78rem;
  color: var(--sis-text-soft);
  text-decoration: none;
  opacity: 0.8;
  transition:
    opacity 160ms var(--sis-ease-soft),
    color 160ms var(--sis-ease-soft);
}

.sis-footer-meta-link:hover {
  opacity: 1;
  color: var(--sis-text-main);
}

/* BACK TO SURFACE */

.si-backtop-wrap {
  margin: 2.4rem 0 0;
  display: flex;
  justify-content: center;
}

.si-backtop-btn {
  position: relative;
  padding: 0.55rem 1.9rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: #050812;
  color: #f6f4f2;
  font-family: "StillIce Display", system-ui, sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  outline: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  transition:
    background-color 200ms ease-out,
    color 200ms ease-out,
    box-shadow 200ms ease-out,
    transform 180ms ease-out,
    border-color 200ms ease-out;
}

.si-backtop-btn:hover {
  background: #0b1020;
  border-color: #7be1bf;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.9);
  transform: translateY(-2px);
}

.si-backtop-btn:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.8);
}

/* адаптив футера */
@media (min-width: 768px) {
  .sis-footer-primary {
    grid-template-columns: minmax(0, auto) minmax(0, 1.1fr) auto;
  }
}

@media (max-width: 640px) {
  .sis-footer-primary {
    grid-template-columns: minmax(0, 1fr);
  }

  .sis-footer-phases {
    order: 3;
  }

  .sis-footer-nav {
    order: 2;
  }

  .sis-footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}
/* --- GLOBAL IMAGE SAFETY FOR STILLICE --- */

/* Любое изображение внутри проекта StillIce:
   - не шире своего родителя
   - не больше 350px по ширине
   - не тянет страницу по горизонтали
*/
.si-page img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Те картинки, которые должны соблюдать лимит 350px
   (мы как раз их так размечали) */
.si-image-limited,
.sil-image-limited,
.sis-image-limited,
.sip-image-limited {
  max-width: 350px;
  width: 100%;
}

/* Фреймы-карточки с фото прячут всё, что внутри,
   чтобы ничего не вылезало за границы блока */
figure[class*="photo"],
figure[class*="card"],
figure[class*="strip"] {
  overflow: hidden;
}