:root {
  --night: #031522;
  --night-deep: #010d16;
  --navy: #05335a;
  --blue: #0873b3;
  --cyan: #42b8e8;
  --yellow: #ffc83d;
  --gold: #e7ac27;
  --paper: #f4efdf;
  --paper-deep: #e9e0c8;
  --ink: #f7fbff;
  --muted: #afc0cc;
  --dark-text: #082941;
  --line: rgba(100, 190, 238, 0.2);
  --shell: min(1180px, calc(100% - 40px));
  --header-shell: min(1780px, calc(100% - 34px));
  font-family: "Segoe UI", "Noto Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  background: var(--night-deep);
}
body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--night);
  color: var(--ink);
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
button, a { font: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 2000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--yellow);
  color: #04111a;
  font-weight: 850;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}
.skip-link:focus { transform: translateY(0); }

/* Το ίδιο sticky header χρησιμοποιείται σε όλες τις δημόσιες σελίδες. */
.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  width: 100%;
  min-height: 88px;
  border-top: 1px solid rgba(255, 200, 61, 0.22);
  border-bottom: 1px solid rgba(65, 175, 235, 0.3);
  background: rgba(2, 20, 34, 0.985);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(14px);
}
.site-header:not([data-ready]) > * { visibility: hidden; }
.header-shell {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  width: var(--header-shell);
  min-height: 87px;
  margin-inline: auto;
  gap: 14px;
}
.brand {
  display: inline-flex;
  min-width: 188px;
  align-items: center;
  gap: 9px;
  text-decoration: none;
}
.brand-icon {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  object-fit: contain;
  filter: drop-shadow(0 7px 16px rgba(0, 0, 0, 0.42));
}
.header-wordmark {
  width: 142px;
  max-height: 48px;
  object-fit: contain;
  object-position: left center;
}
.main-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 1px;
}
.main-nav a {
  padding: 12px clamp(5px, 0.42vw, 8px);
  color: #d7e2eb;
  font-size: clamp(0.66rem, 0.65vw, 0.78rem);
  font-weight: 760;
  text-decoration: none;
  white-space: nowrap;
  transition: color 150ms ease, transform 150ms ease;
}
.main-nav a::after {
  display: block;
  width: 0;
  height: 2px;
  margin: 7px auto -9px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--yellow));
  content: "";
  transition: width 160ms ease;
}
.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a[aria-current="page"] {
  color: white;
  outline: none;
  transform: translateY(-1px);
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a[aria-current="page"]::after { width: 100%; }
.main-nav .nav-app { color: #74cef3; }
.main-nav .nav-play { color: #ffd46a; }
.header-actions {
  display: flex;
  min-width: 112px;
  align-items: center;
  justify-content: flex-end;
}
.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 5px;
  border: 0;
  background: transparent;
  color: #7892a4;
  font-size: 0.69rem;
  font-weight: 900;
  cursor: pointer;
}
.language-switch > span.is-active { color: var(--yellow); }
.language-switch > i {
  position: relative;
  display: block;
  width: 34px;
  height: 19px;
  border: 1px solid rgba(89, 192, 245, 0.5);
  border-radius: 20px;
  background: #061e31;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.3);
}
.language-switch > i b {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 3px rgba(255, 200, 61, 0.1);
  transition: transform 170ms ease;
}
.language-switch[aria-pressed="false"] > i b { transform: translateX(16px); }
.language-switch:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }
.menu-button { display: none; }

.hero {
  position: relative;
  min-height: min(680px, calc(100vh - 88px));
  overflow: hidden;
  isolation: isolate;
  background: #063762;
}
.hero-art,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-art {
  z-index: -2;
  object-fit: cover;
  object-position: center;
}
.hero-shade {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(2, 17, 29, 0.98) 0%, rgba(2, 20, 34, 0.83) 35%, rgba(2, 20, 34, 0.14) 66%, rgba(2, 20, 34, 0.01) 100%),
    linear-gradient(0deg, rgba(2, 16, 28, 0.7), transparent 38%);
}
.hero-content {
  display: flex;
  min-height: min(680px, calc(100vh - 88px));
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding-block: 68px;
}
h1 {
  max-width: 640px;
  margin: 0;
  color: #f8f3e7;
  font-size: clamp(2.85rem, 4.8vw, 4.65rem);
  font-weight: 870;
  letter-spacing: -0.05em;
  line-height: 1.05;
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.42);
}
h1 span,
h1 em { display: block; }
h1 em {
  margin-top: 4px;
  color: var(--yellow);
  font-style: normal;
}
.hero-intro {
  max-width: 520px;
  margin: 26px 0 0;
  color: #edf4f7;
  font-size: clamp(1rem, 1.2vw, 1.1rem);
  line-height: 1.72;
  text-shadow: 0 3px 13px rgba(0, 0, 0, 0.54);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 840;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}
.button:hover,
.button:focus-visible {
  outline: none;
  transform: translateY(-2px);
}
.button-primary {
  background: var(--yellow);
  color: #06243a;
  box-shadow: 0 10px 30px rgba(255, 198, 49, 0.2);
}
.button-outline {
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(3, 25, 43, 0.3);
  color: white;
  backdrop-filter: blur(8px);
}
.button-outline-dark {
  border-color: rgba(73, 179, 234, 0.62);
  background: rgba(3, 27, 45, 0.18);
  color: #092d48;
}

.feature-band {
  position: relative;
  z-index: 3;
  overflow: hidden;
  border-top: 1px solid rgba(7, 68, 110, 0.18);
  border-bottom: 1px solid rgba(7, 68, 110, 0.2);
  background:
    linear-gradient(rgba(10, 74, 114, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 62px;
  color: var(--dark-text);
}
.feature-band::before,
.feature-band::after {
  position: absolute;
  bottom: 0;
  width: 190px;
  height: 210px;
  background: url("illustrations/pamepsarema-wave-sketch.png") center / 620px auto no-repeat;
  content: "";
  opacity: 0.28;
}
.feature-band::before { left: -55px; }
.feature-band::after { right: -55px; transform: scaleX(-1); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-block: 38px 42px;
}
.feature-card {
  position: relative;
  min-width: 0;
  padding-inline: 12px;
}
.feature-sketch {
  position: relative;
  width: 100%;
  height: 112px;
  margin: 0 0 12px;
  overflow: hidden;
}
.feature-sketch img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.feature-card h2 {
  margin: 0 0 8px;
  color: #062b48;
  font-size: 1.02rem;
  font-weight: 870;
}
.feature-card p {
  margin: 0;
  color: #35566e;
  font-size: 0.9rem;
  line-height: 1.55;
}

.section-label {
  margin: 0 0 13px;
  color: var(--yellow);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.story-section {
  position: relative;
  overflow: hidden;
  background: #05263f;
}
.story-section::after {
  position: absolute;
  right: -160px;
  bottom: -110px;
  width: 760px;
  height: 300px;
  background: url("illustrations/pamepsarema-wave-sketch.png") center / contain no-repeat;
  content: "";
  opacity: 0.12;
}
.story-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.83fr 1.17fr;
  gap: clamp(60px, 8vw, 120px);
  padding-block: 104px;
}
.story-heading h2,
.section-heading h2,
.sea-copy h2,
.philosophy-layout h2,
.cave-copy h2,
.safety-copy h2,
.faq-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3.3vw, 3.2rem);
  line-height: 1.13;
  letter-spacing: -0.035em;
}
.story-fish {
  width: 280px;
  margin: 32px auto 0 0;
  opacity: 0.78;
  filter: saturate(1.04);
}
.story-copy {
  align-self: center;
  color: #d8e5ed;
  font-size: clamp(1rem, 1.25vw, 1.13rem);
  line-height: 1.88;
}
.story-copy p { margin: 0 0 22px; }
.story-copy blockquote {
  margin: 32px 0 0;
  padding: 0 0 0 23px;
  border-left: 3px solid var(--yellow);
  color: white;
  font-size: 1.08em;
  font-style: italic;
  font-weight: 650;
}

.how-section {
  position: relative;
  overflow: hidden;
  padding-block: 100px;
  background:
    radial-gradient(circle at 50% 42%, rgba(23, 124, 183, 0.13), transparent 42%),
    #031522;
}
.section-heading {
  max-width: 780px;
  margin-bottom: 26px;
}
.section-heading-center {
  margin-inline: auto;
  text-align: center;
}
.section-heading-center > p:last-child {
  max-width: 720px;
  margin: 18px auto 0;
  color: #b7c9d5;
  line-height: 1.7;
}
.how-sketches {
  width: min(1120px, 100%);
  height: 310px;
  margin: 0 auto -22px;
  object-fit: contain;
  object-position: center;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.how-grid article {
  min-height: 190px;
  padding: 34px clamp(22px, 3vw, 42px) 38px;
}
.how-grid article + article { border-left: 1px solid var(--line); }
.how-grid h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}
.how-grid p {
  margin: 0;
  color: #aebfcb;
  line-height: 1.66;
}

.sea-section,
.cave-section {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  isolation: isolate;
}
.sea-art,
.sea-shade,
.cave-section > img,
.cave-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.sea-art,
.cave-section > img {
  z-index: -2;
  object-fit: cover;
}
.sea-shade {
  z-index: -1;
  background: linear-gradient(90deg, rgba(1, 17, 29, 0.96), rgba(1, 25, 44, 0.67) 54%, rgba(1, 20, 34, 0.18));
}
.sea-copy,
.cave-copy {
  display: flex;
  min-height: 620px;
  flex-direction: column;
  justify-content: center;
}
.sea-copy h2,
.cave-copy h2 { max-width: 670px; }
.sea-copy > p:last-child,
.cave-copy > p:last-child {
  max-width: 610px;
  margin: 24px 0 0;
  color: #d9e5ec;
  font-size: 1.08rem;
  line-height: 1.76;
}

.philosophy-section {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  color: var(--dark-text);
}
.philosophy-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  align-items: center;
  gap: clamp(42px, 7vw, 90px);
  padding-block: 84px;
}
.philosophy-mark {
  display: grid;
  width: 210px;
  height: 210px;
  place-items: center;
}
.philosophy-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.philosophy-section .section-label { color: #9f6a00; }
.philosophy-layout p:last-child {
  max-width: 760px;
  margin: 23px 0 0;
  color: #36576d;
  font-size: 1.08rem;
  line-height: 1.75;
}

.cave-section > img { object-position: center; }
.cave-shade {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(0, 15, 26, 0.92), rgba(1, 26, 44, 0.56) 55%, rgba(0, 16, 29, 0.17)),
    linear-gradient(0deg, rgba(0, 14, 24, 0.45), transparent 42%);
}

.safety-section {
  position: relative;
  overflow: hidden;
  padding-block: 98px;
  background:
    radial-gradient(circle at 82% 24%, rgba(48, 159, 215, 0.14), transparent 24%),
    #05263f;
}
.safety-section::after {
  position: absolute;
  right: -90px;
  bottom: -180px;
  width: 690px;
  height: 350px;
  background: url("illustrations/pamepsarema-wave-sketch.png") center / contain no-repeat;
  content: "";
  opacity: 0.14;
}
.safety-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  align-items: center;
  gap: clamp(58px, 8vw, 120px);
}
.safety-illustration {
  position: relative;
  min-height: 390px;
}
.safety-illustration img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.safety-copy > p:not(.section-label) {
  max-width: 720px;
  margin: 24px 0 0;
  color: #cedde6;
  font-size: 1.07rem;
  line-height: 1.78;
}
.emergency-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}
.emergency-grid span {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px 16px;
  border: 1px solid rgba(75, 177, 230, 0.22);
  border-radius: 14px;
  background: rgba(1, 15, 26, 0.28);
}
.emergency-grid b {
  color: var(--yellow);
  font-size: 1.32rem;
}
.emergency-grid i {
  color: #f2f7fa;
  font-style: normal;
  font-size: 0.91rem;
  font-weight: 800;
}

.faq-section {
  position: relative;
  overflow: hidden;
  padding-block: 100px;
  background:
    linear-gradient(rgba(6, 79, 123, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 62px;
  color: var(--dark-text);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(60px, 8vw, 120px);
}
.faq-section .section-label { color: #9f6a00; }
.faq-fish {
  width: 330px;
  margin: 36px 0 0 -25px;
  mix-blend-mode: multiply;
}
.faq-list details { border-top: 1px solid rgba(6, 78, 121, 0.19); }
.faq-list details:last-child { border-bottom: 1px solid rgba(6, 78, 121, 0.19); }
.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  padding: 25px 2px;
  color: #082b45;
  font-weight: 840;
  cursor: pointer;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i {
  display: grid;
  width: 33px;
  height: 33px;
  flex: 0 0 33px;
  place-items: center;
  border: 1px solid rgba(8, 104, 162, 0.26);
  border-radius: 50%;
  color: #0874b4;
  font-style: normal;
  font-size: 1.25rem;
  transition: transform 160ms ease;
}
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list details p {
  margin: -7px 50px 24px 2px;
  color: #46657a;
  line-height: 1.67;
}

.availability-section {
  position: relative;
  overflow: hidden;
  padding-block: 104px;
  background:
    radial-gradient(circle at 18% 18%, rgba(33, 147, 205, 0.12), transparent 28%),
    #031522;
}
.availability-section::after {
  position: absolute;
  bottom: -45px;
  left: 0;
  width: 100%;
  height: 250px;
  background: url("illustrations/pamepsarema-wave-sketch.png") center bottom / 1100px auto no-repeat;
  content: "";
  opacity: 0.08;
}
.availability-grid,
.install-note,
.availability-section .section-heading {
  position: relative;
  z-index: 1;
}
.availability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.availability-card {
  display: flex;
  min-height: 480px;
  flex-direction: column;
  align-items: flex-start;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid rgba(78, 180, 232, 0.24);
  border-radius: 26px;
  background: linear-gradient(150deg, rgba(7, 51, 86, 0.93), rgba(3, 27, 46, 0.96));
  box-shadow: 0 25px 65px rgba(0, 0, 0, 0.2);
}
.availability-card.play-card {
  background: linear-gradient(150deg, #f4efdf, #e7deca);
  color: var(--dark-text);
}
.availability-visual {
  position: relative;
  width: 100%;
  height: 150px;
  margin-bottom: 20px;
}
.browser-visual span {
  position: absolute;
  top: 16px;
  left: 50%;
  width: 250px;
  height: 128px;
  border: 4px solid #63b9e2;
  border-radius: 12px 12px 4px 4px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.08) 0 22px, transparent 22px),
    linear-gradient(145deg, rgba(6, 57, 95, 0.78), rgba(1, 21, 37, 0.95));
  transform: translateX(-50%);
  box-shadow: 0 15px 30px rgba(0,0,0,.25);
}
.browser-visual span::before {
  position: absolute;
  top: 8px;
  left: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 12px 0 0 #52b7e5, 24px 0 0 rgba(255,255,255,.45);
  content: "";
}
.browser-visual span::after {
  position: absolute;
  right: 22px;
  bottom: 18px;
  left: 22px;
  height: 64px;
  background: url("../brand/pamepsarema-icon.png") center / contain no-repeat;
  content: "";
}
.browser-visual i {
  position: absolute;
  bottom: 1px;
  left: 50%;
  width: 310px;
  height: 17px;
  border-radius: 3px 3px 50% 50%;
  background: #4d9ac1;
  transform: translateX(-50%);
}
.browser-visual b {
  position: absolute;
  right: 35px;
  bottom: 13px;
  width: 42px;
  height: 50px;
  border: 2px solid var(--yellow);
  border-radius: 7px 7px 15px 15px;
  opacity: 0.85;
}
.phone-visual {
  display: grid;
  place-items: center;
}
.phone-visual > span {
  position: relative;
  display: grid;
  width: 82px;
  height: 144px;
  place-items: center;
  border: 4px solid #0b4c78;
  border-radius: 16px;
  background: linear-gradient(160deg, #083456, #041929);
  box-shadow: 0 16px 28px rgba(5, 39, 63, .22);
}
.phone-visual > span::before {
  position: absolute;
  top: 7px;
  width: 26px;
  height: 3px;
  border-radius: 5px;
  background: rgba(255,255,255,.35);
  content: "";
}
.phone-visual img { width: 54px; }
.card-label {
  margin: 0 0 11px;
  color: var(--yellow);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.play-card .card-label { color: #9f6a00; }
.availability-card h3 {
  margin: 0;
  font-size: clamp(1.65rem, 2.5vw, 2.25rem);
  line-height: 1.17;
}
.availability-card > p:not(.card-label) {
  margin: 18px 0 28px;
  color: #b9cbd6;
  line-height: 1.72;
}
.availability-card.play-card > p:not(.card-label) { color: #436176; }
.availability-card .button { margin-top: auto; }
.install-note {
  margin-top: 24px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(76, 179, 232, 0.21);
  border-radius: 22px;
  background: rgba(7, 46, 76, 0.52);
}
.install-note h3 {
  margin: 0 0 18px;
  font-size: 1.4rem;
}
.install-note ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 0;
  padding: 0;
  counter-reset: install;
  list-style: none;
}
.install-note li {
  position: relative;
  padding-left: 42px;
  color: #c3d2dc;
  line-height: 1.58;
  counter-increment: install;
}
.install-note li::before {
  position: absolute;
  top: -3px;
  left: 0;
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid rgba(74, 182, 235, 0.44);
  border-radius: 50%;
  color: var(--yellow);
  content: counter(install);
  font-size: .78rem;
  font-weight: 900;
}
.install-note > p {
  margin: 28px 0 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(78, 180, 232, 0.16);
  color: #d6e2e9;
  line-height: 1.68;
}
.text-link {
  color: #73cbf4;
  font-weight: 780;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.site-footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(69, 178, 235, 0.19);
  background: #010d16;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  padding-block: 42px 28px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.footer-brand img:first-child { width: 46px; height: 46px; object-fit: contain; }
.footer-brand img:last-child { width: 150px; max-height: 44px; object-fit: contain; object-position: left; }
.instagram-qr {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #8fa7b5;
  font-size: .7rem;
  line-height: 1.35;
}
.instagram-qr img {
  width: 74px;
  height: 74px;
  border-radius: 10px;
  object-fit: contain;
}
.instagram-qr strong { color: #d9e8ef; font-size: .72rem; }
.footer-top nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 11px 22px;
}
.footer-top nav a {
  position: relative;
  padding: 7px 0 8px;
  border-bottom: 1px solid rgba(255, 200, 61, 0.28);
  color: #e3b846;
  font-size: .84rem;
  text-decoration: none;
}
.footer-top nav a:nth-child(even) {
  border-bottom-color: rgba(90, 194, 238, 0.3);
  color: #78c8ed;
}
.footer-top nav a:hover,
.footer-top nav a:focus-visible {
  border-bottom-color: currentColor;
  color: #ffe39a;
  outline: none;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px 28px;
  border-top: 1px solid rgba(70, 161, 208, 0.12);
  color: #718996;
  font-size: .75rem;
}
.footer-bottom a { color: #82a9bd; }

@media (max-width: 1450px) {
  .header-shell { grid-template-columns: auto auto; justify-content: space-between; }
  .header-actions { gap: 7px; }
  .menu-button {
    display: inline-flex;
    height: 42px;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    border: 1px solid rgba(77, 183, 237, .28);
    border-radius: 10px;
    background: rgba(7, 46, 77, .72);
    color: white;
    cursor: pointer;
  }
  .menu-button span { font-size: .75rem; font-weight: 800; }
  .main-nav {
    position: absolute;
    z-index: 1100;
    top: 100%;
    right: 0;
    bottom: auto;
    display: none;
    width: min(390px, 92vw);
    height: calc(100vh - 88px);
    align-items: stretch;
    justify-content: flex-start;
    flex-direction: column;
    gap: 0;
    padding: 18px;
    overflow-y: auto;
    border-left: 1px solid rgba(74, 180, 234, .24);
    background: rgba(2, 18, 31, .995);
    box-shadow: -22px 24px 55px rgba(0,0,0,.4);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a {
    padding: 15px 12px;
    border-bottom: 1px solid rgba(80, 167, 211, .13);
    font-size: .9rem;
  }
  .main-nav a::after { display: none; }
}

@media (max-width: 980px) {
  :root { --shell: min(100% - 34px, 760px); }
  .hero { min-height: 650px; }
  .hero-art { object-position: 61% center; }
  .hero-shade {
    background:
      linear-gradient(90deg, rgba(2,17,29,.97), rgba(2,20,34,.76) 58%, rgba(2,20,34,.25)),
      linear-gradient(0deg, rgba(2,16,28,.7), transparent 38%);
  }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .story-layout,
  .faq-layout,
  .safety-layout { grid-template-columns: 1fr; }
  .story-layout,
  .faq-layout { gap: 48px; }
  .story-fish { width: 220px; }
  .how-sketches { height: 235px; }
  .how-grid { grid-template-columns: 1fr; }
  .how-grid article { min-height: auto; }
  .how-grid article + article { border-top: 1px solid var(--line); border-left: 0; }
  .sea-section,
  .cave-section,
  .sea-copy,
  .cave-copy { min-height: 560px; }
  .philosophy-layout { grid-template-columns: 180px 1fr; }
  .philosophy-mark { width: 160px; height: 160px; }
  .philosophy-mark img { width: 88px; height: 88px; }
  .safety-layout { gap: 22px; }
  .safety-illustration { min-height: 300px; max-width: 480px; }
  .availability-grid { grid-template-columns: 1fr; }
  .install-note ol { grid-template-columns: 1fr; }
  .footer-top { align-items: flex-start; flex-direction: column; }
  .footer-top nav { justify-content: flex-start; }
}

@media (max-width: 660px) {
  :root {
    --shell: calc(100% - 28px);
    --header-shell: calc(100% - 22px);
  }
  html { scroll-padding-top: 76px; }
  .site-header,
  .header-shell { min-height: 74px; }
  .brand { min-width: 0; }
  .brand-icon { width: 40px; height: 40px; flex-basis: 40px; }
  .header-wordmark { width: 112px; }
  .header-actions { min-width: 0; }
  .language-switch { gap: 5px; padding-inline: 2px; }
  .language-switch > i { width: 30px; }
  .language-switch[aria-pressed="false"] > i b { transform: translateX(12px); }
  .main-nav { top: 100%; height: calc(100vh - 74px); }
  .hero {
    min-height: 650px;
    background: #052f51;
  }
  .hero-art {
    object-fit: contain;
    object-position: center top;
    opacity: .82;
  }
  .hero-shade {
    background:
      linear-gradient(90deg, rgba(2,17,29,.94), rgba(2,20,34,.62)),
      linear-gradient(0deg, rgba(2,16,28,.83), transparent 50%);
  }
  .hero-content {
    min-height: 650px;
    justify-content: flex-end;
    padding-block: 54px;
  }
  h1 { font-size: clamp(2.25rem, 11vw, 3.25rem); }
  .hero-intro { font-size: .97rem; }
  .hero-actions { width: 100%; }
  .hero-actions .button { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; gap: 8px; }
  .feature-card {
    display: grid;
    grid-template-columns: clamp(88px, 22vw, 112px) 1fr;
    grid-template-rows: auto auto;
    column-gap: 16px;
    padding-block: 16px;
    border-bottom: 1px solid rgba(6,78,121,.13);
  }
  .feature-sketch {
    grid-row: 1 / 3;
    width: 100%;
    height: 95px;
    margin: 0;
  }
  .feature-card h2 { align-self: end; }
  .story-layout,
  .how-section,
  .faq-section,
  .availability-section { padding-block: 72px; }
  .story-layout { gap: 36px; }
  .story-heading h2,
  .section-heading h2,
  .sea-copy h2,
  .philosophy-layout h2,
  .cave-copy h2,
  .safety-copy h2,
  .faq-heading h2 { font-size: clamp(1.85rem, 8vw, 2.45rem); }
  .story-copy { font-size: 1rem; line-height: 1.75; }
  .story-copy blockquote { margin-top: 26px; }
  .how-sketches { height: 150px; margin-bottom: 4px; }
  .how-grid article { padding: 27px 8px 29px; }
  .sea-section,
  .cave-section,
  .sea-copy,
  .cave-copy { min-height: 520px; }
  .sea-art,
  .cave-section > img {
    object-fit: contain;
    object-position: center;
  }
  .philosophy-layout {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 68px;
  }
  .philosophy-mark { width: 126px; height: 126px; }
  .safety-section { padding-block: 72px; }
  .safety-illustration { min-height: 250px; }
  .emergency-grid { grid-template-columns: 1fr; }
  .faq-fish { width: 230px; margin-left: -10px; }
  .availability-card { min-height: auto; padding: 26px; }
  .availability-visual { height: 128px; }
  .browser-visual span { width: 205px; height: 108px; }
  .browser-visual i { width: 250px; }
  .browser-visual b { right: 8px; }
  .availability-card .button { width: 100%; margin-top: 4px; }
  .install-note { padding: 24px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 400px) {
  .brand-icon { width: 34px; height: 34px; flex-basis: 34px; }
  .header-wordmark { width: 90px; }
  .header-shell { gap: 7px; }
  .header-actions { gap: 4px; }
  .language-switch { gap: 2px; font-size: .56rem; }
  .language-switch > i { width: 26px; }
  .language-switch[aria-pressed="false"] > i b { transform: translateX(8px); }
  .menu-button { padding-inline: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}