/*
 * Approved hero refinement, exact Kola map and application finale.
 * Loaded last so these high-fidelity surfaces stay isolated from the content layer.
 */

/* Matte glass navigation — visible from the first hero frame. */

.site-header {
  top: 14px;
  height: 76px;
  padding: 0;
  background: transparent;
  pointer-events: none;
}

.site-header.is-scrolled {
  top: 8px;
  height: 68px;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header__inner {
  min-height: 72px;
  padding: 8px 10px 8px 18px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.82), rgba(239, 247, 255, 0.64));
  box-shadow:
    0 14px 46px rgba(4, 25, 65, 0.13),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(26px) saturate(155%);
  -webkit-backdrop-filter: blur(26px) saturate(155%);
  pointer-events: auto;
  transition:
    min-height 240ms var(--ease),
    padding 240ms var(--ease),
    background-color 240ms var(--ease),
    box-shadow 240ms var(--ease);
}

.site-header.is-scrolled .site-header__inner {
  min-height: 62px;
  padding-block: 5px;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.91), rgba(238, 247, 255, 0.82));
  box-shadow:
    0 12px 38px rgba(4, 25, 65, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.94);
}

.brand {
  width: min(224px, 100%);
}

.brand img {
  filter: saturate(1.03) contrast(1.03);
}

.desktop-nav a {
  color: #071b4a;
  font-size: 14px;
  font-weight: 760;
}

.site-header .button--compact {
  min-height: 48px;
  padding-inline: 20px;
  box-shadow: 0 10px 26px rgba(200, 13, 61, 0.18);
}

/* Hero: three physical layers and one living aurora drift. */

.hero {
  padding: 8px;
}

.hero-scene {
  min-height: min(850px, calc(100svh - 16px));
  border-radius: 34px;
  background: #bad0e5;
  box-shadow: 0 28px 80px rgba(4, 24, 62, 0.2);
}

.hero-scene__background::after {
  background:
    linear-gradient(90deg, rgba(247, 251, 255, 0.98) 0%, rgba(247, 251, 255, 0.92) 27%, rgba(241, 248, 255, 0.58) 46%, rgba(235, 245, 255, 0.08) 67%),
    linear-gradient(180deg, rgba(5, 20, 53, 0.02) 0%, rgba(5, 20, 53, 0) 56%, rgba(3, 15, 42, 0.21) 100%);
}

.hero-scene__background img {
  object-position: 50% 56%;
  filter: saturate(0.97) contrast(1.02);
}

.hero-scene__aurora {
  z-index: 2;
  opacity: 1;
  filter: saturate(1.28) contrast(1.04);
  mix-blend-mode: normal;
  -webkit-mask-image:
    radial-gradient(ellipse 78% 66% at 90% 6%, #000 0%, rgba(0, 0, 0, 0.98) 50%, rgba(0, 0, 0, 0.68) 72%, transparent 91%);
  mask-image:
    radial-gradient(ellipse 78% 66% at 90% 6%, #000 0%, rgba(0, 0, 0, 0.98) 50%, rgba(0, 0, 0, 0.68) 72%, transparent 91%);
}

.hero-scene.is-aurora-unavailable .hero-scene__background::after {
  background:
    radial-gradient(ellipse 42% 26% at 82% 4%, rgba(74, 220, 230, 0.44), transparent 74%),
    radial-gradient(ellipse 34% 24% at 96% 8%, rgba(219, 91, 220, 0.32), transparent 78%),
    linear-gradient(90deg, rgba(247, 251, 255, 0.98) 0%, rgba(247, 251, 255, 0.92) 27%, rgba(241, 248, 255, 0.58) 46%, rgba(235, 245, 255, 0.08) 67%),
    linear-gradient(180deg, rgba(5, 20, 53, 0.02) 0%, rgba(5, 20, 53, 0) 56%, rgba(3, 15, 42, 0.21) 100%);
}

.hero-scene__motion-toggle {
  position: absolute;
  z-index: 5;
  right: 24px;
  bottom: 22px;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  border-radius: 999px;
  background: rgba(6, 22, 55, 0.42);
  color: rgba(255, 255, 255, 0.88);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 10px 30px rgba(2, 15, 41, 0.2);
  font: 700 11px/1 var(--font-body);
  letter-spacing: 0.02em;
  backdrop-filter: blur(16px) saturate(130%);
  -webkit-backdrop-filter: blur(16px) saturate(130%);
  cursor: pointer;
  transition:
    background-color 180ms ease,
    transform 180ms ease;
}

.hero-scene__motion-toggle:hover {
  background: rgba(6, 22, 55, 0.56);
  transform: translateY(-1px);
}

.hero-scene__motion-toggle:focus-visible {
  outline: 3px solid rgba(99, 243, 194, 0.66);
  outline-offset: 3px;
}

.hero-scene__motion-toggle:disabled {
  cursor: default;
  opacity: 0.72;
  transform: none;
}

.hero-scene__motion-dot {
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #63f3c2;
  box-shadow: 0 0 12px rgba(99, 243, 194, 0.9);
}

.hero-scene__motion-toggle[aria-pressed="true"] .hero-scene__motion-dot {
  background: rgba(255, 255, 255, 0.62);
  box-shadow: none;
}

.hero-scene__person {
  right: 1.5%;
  bottom: -2.5%;
  height: 95%;
  filter:
    drop-shadow(-24px 28px 36px rgba(3, 17, 47, 0.19))
    saturate(0.98);
}

.hero-scene__content {
  min-height: min(850px, calc(100svh - 16px));
  padding-top: 112px;
  padding-bottom: 70px;
}

.hero-scene__content > * {
  max-width: 670px;
}

.hero-scene h1 {
  max-width: 680px;
  font-size: clamp(78px, 8.5vw, 136px);
  letter-spacing: -0.078em;
  line-height: 0.8;
}

.hero-scene__lead {
  margin-top: 30px;
  font-size: clamp(23px, 2vw, 32px);
}

.hero-scene__copy {
  max-width: 590px;
}

.hero-scene__index,
.hero-scene__season {
  display: none;
}

/* Exact Kola geometry over a generated relief surface. */

.map-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 12%, rgba(76, 218, 229, 0.12), transparent 24%),
    radial-gradient(circle at 92% 84%, rgba(45, 93, 168, 0.1), transparent 22%),
    #eef5fa;
}

.map-section .section-heading h2 {
  max-width: 980px;
  font-size: clamp(52px, 6.4vw, 92px);
  letter-spacing: -0.072em;
  line-height: 0.88;
}

.kola-map-shell {
  position: relative;
}

.region-map {
  position: relative;
  min-height: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid rgba(142, 227, 237, 0.22);
  border-radius: clamp(34px, 4vw, 56px);
  background: #061536;
  box-shadow:
    0 42px 110px rgba(3, 21, 55, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  isolation: isolate;
}

.region-map::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 12, 35, 0.62), transparent 48%),
    linear-gradient(180deg, rgba(3, 15, 42, 0.04) 48%, rgba(2, 12, 35, 0.55) 100%);
  content: "";
  pointer-events: none;
}

.region-map__art,
.region-map__art img,
.region-map__outline,
.region-map__markers {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.region-map__art {
  z-index: 1;
  display: block;
}

.region-map__art img {
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  transform: scale(1.002);
}

.region-map__outline {
  z-index: 3;
  opacity: 0.72;
  pointer-events: none;
}

.region-map__markers {
  z-index: 5;
  aspect-ratio: auto;
  transform: none;
}

.region-map__intro {
  position: absolute;
  z-index: 4;
  top: clamp(30px, 4vw, 58px);
  left: clamp(30px, 4vw, 58px);
  width: min(430px, 40%);
  padding: clamp(28px, 3.3vw, 46px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  background: rgba(3, 17, 48, 0.56);
  box-shadow:
    0 26px 70px rgba(0, 8, 28, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.09);
  color: var(--white);
  backdrop-filter: blur(25px) saturate(125%);
  -webkit-backdrop-filter: blur(25px) saturate(125%);
}

.region-map__intro .eyebrow {
  color: rgba(128, 231, 238, 0.78);
}

.region-map__intro h3 {
  margin: 0;
  font-size: clamp(42px, 4.6vw, 68px);
  font-weight: 690;
  letter-spacing: -0.065em;
  line-height: 0.9;
}

.region-map__intro > p:not(.eyebrow) {
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
}

.region-map__facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 30px;
}

.region-map__facts span {
  min-width: 0;
  padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.region-map__facts strong {
  display: block;
  margin-bottom: 2px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(23px, 2.4vw, 34px);
  font-weight: 670;
  letter-spacing: -0.055em;
  line-height: 1;
  text-transform: none;
}

.region-map__legend {
  z-index: 7;
  right: clamp(24px, 3vw, 42px);
  bottom: clamp(20px, 2.8vw, 38px);
  left: clamp(24px, 3vw, 42px);
  padding: 11px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(3, 17, 48, 0.48);
  color: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.region-map__legend i {
  background: #69e0e7;
  box-shadow: 0 0 18px rgba(105, 224, 231, 0.72);
}

.region-map__legend a {
  color: rgba(255, 255, 255, 0.55);
}

.region-map .map-marker {
  z-index: 6;
}

.region-map .map-marker__dot {
  border-color: rgba(255, 255, 255, 0.9);
  background: #65e1e8;
  box-shadow:
    0 0 0 5px rgba(101, 225, 232, 0.14),
    0 0 24px rgba(101, 225, 232, 0.68);
}

.region-map .map-marker__label {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(3, 17, 48, 0.76);
  color: var(--white);
  box-shadow: 0 12px 30px rgba(0, 8, 28, 0.28);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.region-map .map-marker:hover .map-marker__dot,
.region-map .map-marker.is-active .map-marker__dot {
  background: var(--coral);
}

.region-map .city-panel {
  position: absolute;
  z-index: 8;
  right: clamp(28px, 4vw, 58px);
  bottom: clamp(74px, 7vw, 104px);
  width: min(430px, 40%);
  min-height: 0;
  padding: clamp(28px, 3.2vw, 44px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 30px;
  background: rgba(3, 17, 48, 0.72);
  box-shadow: 0 30px 80px rgba(0, 8, 28, 0.34);
  backdrop-filter: blur(26px) saturate(130%);
  -webkit-backdrop-filter: blur(26px) saturate(130%);
}

.region-map .city-panel h3 {
  margin: 48px 0 14px;
  font-size: clamp(42px, 4.4vw, 64px);
}

/* Application: premium closing scene, not a detached utility form. */

.application-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 4%, rgba(85, 216, 230, 0.13), transparent 25%),
    linear-gradient(180deg, #edf4f9, #f7f9fb);
}

.application-shell {
  grid-template-columns: minmax(390px, 0.88fr) minmax(0, 1.12fr);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: clamp(34px, 4vw, 56px);
  background: #041333;
  box-shadow: 0 42px 110px rgba(3, 21, 55, 0.25);
}

.application-intro {
  min-height: 760px;
  padding: clamp(44px, 5vw, 74px);
  background:
    linear-gradient(180deg, rgba(3, 15, 42, 0.04) 8%, rgba(3, 15, 42, 0.9) 82%),
    linear-gradient(90deg, rgba(3, 15, 42, 0.2), transparent 68%),
    url("../assets/images/route-murmansk-port-summer.jpg") center / cover no-repeat;
}

.application-intro::before {
  position: absolute;
  top: 30px;
  right: 30px;
  width: 96px;
  height: 1px;
  background: linear-gradient(90deg, #6de1e7, var(--coral));
  content: "";
}

.application-intro .eyebrow {
  color: rgba(131, 230, 238, 0.82);
}

.application-intro h2 {
  font-size: clamp(52px, 5.6vw, 82px);
  letter-spacing: -0.072em;
  line-height: 0.88;
}

.application-intro > p:not(.eyebrow) {
  max-width: 520px;
  color: rgba(255, 255, 255, 0.66);
}

.application-form {
  min-height: 760px;
  padding: clamp(38px, 5vw, 70px);
  background:
    radial-gradient(circle at 100% 0, rgba(85, 216, 230, 0.1), transparent 26%),
    rgba(248, 251, 253, 0.97);
}

.form-progress {
  margin-bottom: 44px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(18, 58, 122, 0.11);
}

.form-progress__step span {
  width: 36px;
  height: 36px;
  border-color: rgba(18, 58, 122, 0.12);
  box-shadow: 0 8px 20px rgba(5, 31, 75, 0.07);
}

.field input,
.field select,
.field textarea,
.file-input {
  border-color: rgba(18, 58, 122, 0.13);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.field input,
.field select {
  min-height: 56px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(36, 92, 174, 0.46);
  box-shadow:
    0 0 0 4px rgba(64, 122, 205, 0.1),
    0 12px 28px rgba(5, 31, 75, 0.06);
}

.file-input {
  min-height: 58px;
}

.form-actions {
  margin-top: 34px;
}

@media (max-width: 1180px) {
  .site-header__inner {
    grid-template-columns: 190px 1fr auto;
  }

  .hero-scene__person {
    right: -5%;
    height: 88%;
  }

  .region-map__intro,
  .region-map .city-panel {
    width: min(410px, 45%);
  }
}

@media (max-width: 960px) {
  .site-header {
    top: 10px;
    height: 70px;
  }

  .site-header__inner {
    min-height: 66px;
    padding: 7px 9px 7px 14px;
    border-radius: 21px;
  }

  .site-header.is-scrolled {
    top: 7px;
    height: 64px;
  }

  .site-header.is-scrolled .site-header__inner {
    min-height: 60px;
  }

  .brand {
    width: 184px;
  }

  .menu-button {
    border-color: rgba(10, 40, 92, 0.1);
    background: rgba(255, 255, 255, 0.36);
  }

  .hero-scene {
    min-height: 780px;
  }

  .hero-scene__content {
    min-height: 780px;
    padding-top: 106px;
  }

  .hero-scene__person {
    right: -7%;
    bottom: -3%;
    height: 69%;
  }

  .hero-scene__aurora {
    opacity: 0.94;
    -webkit-mask-image:
      radial-gradient(ellipse 86% 61% at 100% 2%, #000 0%, rgba(0, 0, 0, 0.94) 46%, transparent 86%);
    mask-image:
      radial-gradient(ellipse 86% 61% at 100% 2%, #000 0%, rgba(0, 0, 0, 0.94) 46%, transparent 86%);
  }

  .region-map__intro {
    width: min(390px, 48%);
    padding: 28px;
  }

  .region-map__intro h3 {
    font-size: 44px;
  }

  .region-map .city-panel {
    width: min(390px, 48%);
  }

  .application-shell {
    grid-template-columns: 1fr;
  }

  .application-intro {
    min-height: 560px;
  }

  .application-form {
    min-height: auto;
  }
}

@media (max-width: 680px) {
  .site-header {
    top: 7px;
    height: 64px;
  }

  .site-header__inner {
    width: calc(100% - 14px);
    min-height: 60px;
    padding: 6px 7px 6px 11px;
    border-radius: 19px;
  }

  .site-header.is-scrolled {
    top: 6px;
    height: 60px;
  }

  .site-header.is-scrolled .site-header__inner {
    min-height: 56px;
    padding-block: 4px;
  }

  .brand {
    width: 162px;
  }

  .menu-button {
    width: 42px;
    height: 42px;
  }

  .hero {
    padding: 4px;
  }

  .hero-scene {
    min-height: 728px;
    border-radius: 25px;
  }

  .hero-scene__content {
    min-height: 728px;
    padding: 92px 4px 32px;
  }

  .hero-scene h1 {
    max-width: 340px;
    font-size: clamp(61px, 19.5vw, 86px);
  }

  .hero-scene__person {
    right: -18%;
    bottom: -1.5%;
    height: 64%;
  }

  .hero-scene__background::after {
    background:
      linear-gradient(180deg, rgba(247, 251, 255, 0.97) 0%, rgba(247, 251, 255, 0.88) 38%, rgba(235, 245, 255, 0.22) 62%, rgba(3, 15, 42, 0.18) 100%);
  }

  .hero-scene__aurora {
    opacity: 1;
    -webkit-mask-image:
      radial-gradient(ellipse 104% 60% at 100% 1%, #000 0%, rgba(0, 0, 0, 0.93) 47%, rgba(0, 0, 0, 0.5) 69%, transparent 88%);
    mask-image:
      radial-gradient(ellipse 104% 60% at 100% 1%, #000 0%, rgba(0, 0, 0, 0.93) 47%, rgba(0, 0, 0, 0.5) 69%, transparent 88%);
  }

  .hero-scene__motion-toggle {
    right: 12px;
    bottom: 11px;
    min-height: 34px;
    padding: 7px 10px;
    font-size: 10px;
  }

  .map-section {
    padding-top: 82px;
    padding-bottom: 82px;
  }

  .map-section .section-heading {
    margin-bottom: 30px;
  }

  .map-section .section-heading h2 {
    font-size: clamp(42px, 13vw, 57px);
  }

  .region-map {
    min-height: 0;
    aspect-ratio: auto;
    padding-top: 75%;
    padding-bottom: 430px;
    border-radius: 28px;
  }

  .region-map::after {
    bottom: auto;
    height: auto;
    aspect-ratio: 4 / 3;
    background:
      linear-gradient(180deg, rgba(3, 15, 42, 0.02), rgba(2, 12, 35, 0.35));
  }

  .region-map__art,
  .region-map__art img,
  .region-map__outline,
  .region-map__markers {
    bottom: auto;
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .region-map__intro {
    top: calc(75vw - 6px);
    right: 12px;
    left: 12px;
    width: auto;
    padding: 25px 23px;
    border-radius: 23px;
    background: rgba(8, 29, 69, 0.86);
  }

  .region-map__intro h3 {
    font-size: 39px;
  }

  .region-map__intro > p:not(.eyebrow) {
    margin-top: 14px;
    font-size: 13px;
  }

  .region-map__facts {
    margin-top: 20px;
  }

  .region-map__legend {
    right: 12px;
    bottom: 12px;
    left: 12px;
    padding: 9px 11px;
  }

  .region-map__legend > span {
    display: flex;
  }

  .region-map__legend a {
    font-size: 9px;
  }

  .region-map .city-panel {
    top: calc(75vw - 6px);
    right: 12px;
    bottom: 54px;
    left: 12px;
    width: auto;
    overflow: auto;
    border-radius: 23px;
  }

  .region-map .city-panel h3 {
    margin-top: 30px;
    font-size: 42px;
  }

  .application-section {
    padding-top: 82px;
    padding-bottom: 82px;
  }

  .application-shell {
    border-radius: 30px;
  }

  .application-intro {
    min-height: 480px;
    padding: 34px 27px;
  }

  .application-intro h2 {
    font-size: 48px;
  }

  .application-form {
    padding: 34px 22px;
  }

  .form-progress {
    grid-template-columns: auto 1fr auto;
    gap: 9px;
  }

  .form-progress > small {
    grid-column: 1 / -1;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .field--full {
    grid-column: auto;
  }

  .form-actions {
    display: grid;
  }

  .form-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scene__background,
  .hero-scene__person {
    transition: none;
  }
}