:root {
  --ink: #17211f;
  --muted: #64716c;
  --paper: #f6f0e6;
  --warm: #fffaf1;
  --deep: #03111f;
  --deep-soft: #0e2730;
  --blue: #00a8ff;
  --green: #86b91a;
  --clay: #b96f44;
  --coral: #ff7a4d;
  --glass: rgba(255, 255, 255, 0.14);
  --line: rgba(23, 33, 31, 0.16);
  --max: 1180px;
  --gutter: clamp(18px, 4vw, 48px);
  --display: "Fraunces", Georgia, serif;
  --body: "Inter", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.34), transparent 420px),
    var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
.page { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }

.site-header {
  position: absolute; inset: 0 0 auto; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 24px var(--gutter); color: #fff;
}
.site-header::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  height: 1px;
  background: rgba(255,255,255,.18);
}
.site-header.light { position: relative; background: var(--warm); color: var(--ink); border-bottom: 1px solid var(--line); }
.site-header.light::after { display: none; }
.brand, .footer-brand { font: 650 clamp(1.35rem, 2vw, 2rem)/1 var(--display); letter-spacing: 0; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.brand img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 10px 32px rgba(0,0,0,.2);
}
.main-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: clamp(12px, 2vw, 28px); font-size: .82rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.main-nav a { opacity: .82; transition: color .2s ease, opacity .2s ease; }
.main-nav a:hover, .main-nav a[aria-current="page"] { opacity: 1; color: var(--blue); }

h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 650; line-height: 1.02; letter-spacing: 0; }
h1 { font-size: clamp(3.2rem, 8vw, 7rem); }
h2 { font-size: clamp(2.1rem, 4.8vw, 4.7rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.8rem); }
p { margin: 0; }
.kicker, .section-label { margin: 0 0 16px; color: var(--green); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }

.hero {
  position: relative;
  min-height: 88vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(71,203,255,.85) 0, rgba(7,77,122,.62) 22%, transparent 52%),
    radial-gradient(circle at 15% 62%, rgba(255,122,77,.24), transparent 26%),
    radial-gradient(circle at 88% 42%, rgba(134,185,26,.35), transparent 24%),
    linear-gradient(180deg, #062c52 0%, #03111f 76%);
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0 62%, rgba(0,0,0,.46)),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 140px);
}
.waterlight {
  position: absolute;
  inset: -8% -10% 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.28), transparent 18%),
    repeating-linear-gradient(105deg, rgba(255,255,255,.1) 0 2px, transparent 2px 78px);
  opacity: .72;
  transform: skewY(-3deg);
}
.reef { position: absolute; bottom: -8%; width: 34%; height: 48%; filter: blur(.2px); }
.reef.left { left: -3%; background: radial-gradient(circle at 30% 70%, #ff8640 0 4%, transparent 5%), radial-gradient(circle at 40% 55%, #7f4be8 0 7%, transparent 8%), radial-gradient(circle at 18% 62%, #f4b342 0 5%, transparent 6%), linear-gradient(140deg, transparent 20%, #12394f 20% 55%, transparent 55%); }
.reef.right { right: -2%; background: radial-gradient(circle at 55% 25%, #9ad327 0 8%, transparent 9%), radial-gradient(circle at 72% 48%, #3b7b38 0 12%, transparent 13%), linear-gradient(35deg, transparent 18%, #5b3d20 19% 25%, transparent 26%); }
.fish { position: absolute; width: 92px; height: 42px; border-radius: 60% 45% 45% 60%; box-shadow: 0 10px 28px rgba(0,0,0,.28); animation: drift 7s ease-in-out infinite; }
.fish::after { content: ""; position: absolute; right: -21px; top: 10px; border-left: 26px solid currentColor; border-top: 12px solid transparent; border-bottom: 12px solid transparent; }
.fish-one { left: 12%; top: 26%; background: #195cff; color: #ffd429; }
.fish-two { right: 13%; top: 32%; background: #f3c22e; color: #243e8f; transform: scale(1.15); animation-delay: -2s; }
.fish-three { left: 22%; top: 42%; background: #ff7a2d; color: #fff; transform: scale(.78); animation-delay: -4s; }
.bubble {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  opacity: .65;
  animation: rise 8s linear infinite;
}
.b1 { left: 18%; bottom: 22%; }
.b2 { left: 61%; bottom: 18%; animation-delay: -2.5s; transform: scale(.72); }
.b3 { right: 18%; bottom: 30%; animation-delay: -5s; transform: scale(1.28); }
.hero-center { position: absolute; left: 50%; top: 28%; transform: translateX(-50%); width: min(720px, 86%); text-align: center; text-shadow: 0 8px 30px rgba(0,0,0,.42); }
.hero-logo {
  display: grid;
  justify-items: center;
  margin-bottom: 22px;
  color: #fff;
  text-shadow: 0 12px 38px rgba(0,0,0,.45);
}
.hero-logo img {
  width: clamp(96px, 13vw, 154px);
  height: clamp(96px, 13vw, 154px);
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow:
    0 0 0 10px rgba(255,255,255,.12),
    0 24px 70px rgba(0,0,0,.34);
}
.hero-logo span {
  margin-top: 18px;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5.4vw, 5.2rem);
  font-weight: 650;
  line-height: .9;
  letter-spacing: .02em;
}
.hero-center p { color: var(--blue); font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-center span { display: block; max-width: 560px; margin: 20px auto 0; color: rgba(255,255,255,.82); font-size: clamp(1rem, 1.4vw, 1.24rem); }
.hero-card {
  position: absolute; bottom: 18px; z-index: 3; display: grid; align-content: end; width: calc((100% - (var(--gutter) * 2) - 36px) / 3); min-height: 220px;
  padding: clamp(20px, 3vw, 34px); border: 1px solid rgba(255,255,255,.22); border-radius: 8px; color: #fff;
  background:
    linear-gradient(180deg, rgba(3,17,31,.08), rgba(3,17,31,.9)),
    radial-gradient(circle at 20% 15%, rgba(0,168,255,.28), transparent 34%);
  box-shadow: 0 22px 70px rgba(0,0,0,.25);
  backdrop-filter: blur(4px);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.hero-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,.56); background-color: rgba(255,255,255,.05); }
.hero-card.marine { left: var(--gutter); }
.hero-card.plants { left: calc(var(--gutter) + ((100% - (var(--gutter) * 2) - 36px) / 3) + 18px); }
.hero-card.tank { right: var(--gutter); }
.hero-card span { color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-card.plants span { color: var(--green); }
.hero-card.tank span { color: var(--coral); }
.hero-card strong { margin-top: 12px; font-family: var(--display); font-size: clamp(1.35rem, 2.2vw, 2.35rem); line-height: 1.08; }
.hero-card em { margin-top: 18px; color: var(--green); font-style: normal; font-weight: 800; }
.hero-card.tank em { color: var(--coral); }

.intro { display: grid; grid-template-columns: 7fr 4fr; gap: clamp(32px, 7vw, 96px); padding-block: clamp(72px, 10vw, 132px); }
.intro h2 { max-width: 12ch; }
.intro p:last-child { align-self: end; color: var(--muted); font-size: clamp(1.05rem, 1.35vw, 1.25rem); }
.services, .variants, .service-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.services article, .variants article, .service-list div { min-height: 250px; padding: clamp(26px, 4vw, 46px); background: rgba(255,250,241,.52); border-right: 1px solid var(--line); transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.services article:hover, .variants article:hover, .service-list div:hover { background: var(--warm); transform: translateY(-4px); box-shadow: 0 22px 60px rgba(3,17,31,.08); }
.services p, .variants p, .service-list p { margin-top: 16px; color: var(--muted); }
.services a { display: inline-block; margin-top: 22px; border-bottom: 2px solid var(--blue); font-weight: 800; }
.service-mark { display: block; width: 54px; height: 3px; margin-bottom: 26px; background: var(--blue); }
.service-mark.green { background: var(--green); }
.service-mark.clay { background: var(--clay); }

.feature-split { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(32px, 6vw, 82px); align-items: center; padding-block: clamp(78px, 11vw, 150px); }
.visual-panel {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 8px;
  box-shadow: 0 28px 80px rgba(3,17,31,.18);
  background:
    linear-gradient(180deg, rgba(255,255,255,.42) 0 5px, transparent 5px 100%),
    radial-gradient(circle at 42% 40%, #18a7ff 0 10%, transparent 11%),
    radial-gradient(circle at 25% 68%, #ff7e33 0 5%, transparent 6%),
    radial-gradient(circle at 68% 64%, #86b91a 0 12%, transparent 13%),
    linear-gradient(145deg, #061b2c, #0b5c65 45%, #112c1f);
}
.visual-panel::before {
  content: "";
  position: absolute;
  left: 14%;
  right: 10%;
  bottom: 10%;
  height: 34%;
  background:
    linear-gradient(42deg, transparent 0 36%, rgba(113,72,35,.9) 37% 45%, transparent 46%),
    repeating-linear-gradient(90deg, rgba(134,185,26,.9) 0 8px, transparent 8px 28px);
  opacity: .72;
}
.feature-copy p:not(.section-label) { margin-top: 24px; color: var(--muted); font-size: clamp(1.03rem, 1.2vw, 1.18rem); }
.blue-text { color: var(--blue); }

.editorial-band {
  background:
    radial-gradient(circle at 80% 10%, rgba(134,185,26,.22), transparent 28%),
    linear-gradient(135deg, var(--deep-soft), #061723 72%);
  color: #fff;
}
.band-grid { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(28px, 7vw, 100px); align-items: end; padding-block: clamp(72px, 10vw, 120px); }
.band-grid p:last-child { color: rgba(255,255,255,.76); font-size: clamp(1.08rem, 1.45vw, 1.32rem); }
.band-link { display: inline-block; margin-top: 24px; border-bottom: 2px solid var(--green); color: #fff; font-weight: 800; }

.cta { padding-block: clamp(74px, 10vw, 128px); text-align: center; }
.cta h2, .cta p { max-width: 850px; margin-inline: auto; }
.cta p:not(.section-label) { margin-top: 22px; color: var(--muted); font-size: clamp(1rem, 1.3vw, 1.2rem); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border: 1px solid currentColor; border-radius: 4px; padding: 13px 20px; font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.button-dark { margin-top: 32px; background: var(--ink); color: var(--warm); border-color: var(--ink); }

.subhero { position: relative; min-height: 62vh; display: grid; align-items: end; padding: 110px var(--gutter) 72px; color: #fff; overflow: hidden; background: radial-gradient(circle at 24% 20%, #0ab0f0, transparent 28%), linear-gradient(140deg, #03111f, #0b4a52); }
.subhero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 46%;
  background: linear-gradient(0deg, rgba(3,17,31,.72), transparent);
}
.subhero.green { background: radial-gradient(circle at 68% 34%, #83bd26, transparent 28%), linear-gradient(140deg, #03111f, #163d2c); }
.subhero div { width: min(820px, 100%); }
.subhero > div { position: relative; z-index: 1; }
.subhero p:last-child { max-width: 620px; margin-top: 20px; color: rgba(255,255,255,.82); font-size: clamp(1.1rem, 1.8vw, 1.45rem); }
.article { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(24px, 3vw, 36px); padding-block: clamp(70px, 9vw, 120px); }
.article-main { grid-column: 2 / span 7; }
.article-aside { grid-column: 10 / span 3; align-self: start; border-left: 1px solid var(--line); padding-left: 24px; color: var(--muted); }
.lede { margin-bottom: 30px; color: var(--deep-soft); font-family: var(--display); font-size: clamp(1.45rem, 2.4vw, 2.45rem); line-height: 1.22; }
.article-main h2 { margin-top: 48px; font-size: clamp(2rem, 3.2vw, 3.4rem); }
.article-main p:not(.lede) { margin-top: 18px; color: var(--muted); }
.service-list { grid-template-columns: repeat(4, 1fr); }
.service-list span { display: block; margin-bottom: 26px; color: var(--blue); font-weight: 800; }

.site-footer { position: relative; overflow: hidden; background: var(--deep); color: #fff; }
.footer-water { position: absolute; inset: 0; background: radial-gradient(circle at 80% 10%, rgba(134,185,26,.32), transparent 28%), linear-gradient(90deg, #03111f, #0b3140); }
.footer-content { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr .8fr auto; gap: 32px; align-items: start; padding-block: 72px; }
.site-footer.compact .footer-content { display: flex; align-items: center; justify-content: space-between; padding-block: 34px; }
.footer-content p:not(.footer-brand) { color: rgba(255,255,255,.72); }
.footer-links { display: grid; gap: 12px; color: rgba(255,255,255,.78); font-weight: 700; }
.copyright { color: rgba(255,255,255,.58); font-size: .86rem; }

.admin-entry { position: fixed; right: 18px; bottom: 18px; z-index: 40; min-height: 44px; border: 1px solid rgba(255,255,255,.28); border-radius: 4px; padding: 10px 16px; background: rgba(3,17,31,.92); color: #fff; font: 800 .78rem var(--body); letter-spacing: .08em; text-transform: uppercase; box-shadow: 0 16px 44px rgba(3,17,31,.28); cursor: pointer; }
.admin-entry.is-logged { border-color: rgba(134,185,26,.8); color: var(--green); }
.admin-overlay { position: fixed; inset: 0; z-index: 50; display: none; align-items: center; justify-content: center; padding: 22px; background: rgba(3,17,31,.68); backdrop-filter: blur(10px); overflow: auto; }
.admin-overlay.is-open { display: flex; }
.admin-dialog { width: min(780px, 100%); max-height: calc(100vh - 44px); overflow: auto; border-radius: 8px; padding: clamp(24px, 4vw, 34px); background: var(--warm); color: var(--ink); box-shadow: 0 30px 90px rgba(3,17,31,.4); }
.admin-dialog h2 { font-size: clamp(2rem, 6vw, 3rem); }
.admin-dialog p { margin-top: 12px; color: var(--muted); }
.admin-form { display: grid; gap: 14px; margin-top: 24px; }
.admin-form label { display: grid; gap: 6px; font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.admin-form input, .admin-form select, .admin-form textarea, .admin-builder-form input, .admin-builder-form select, .admin-builder-form textarea { width: 100%; min-height: 46px; border: 1px solid var(--line); border-radius: 4px; padding: 10px 12px; background: #fff; color: var(--ink); font: 400 1rem var(--body); }
.admin-form textarea, .admin-builder-form textarea { resize: vertical; line-height: 1.5; }
.admin-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.admin-actions button { min-height: 44px; border: 1px solid var(--ink); border-radius: 4px; padding: 10px 16px; background: var(--ink); color: var(--warm); font: 800 .78rem var(--body); letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.admin-actions .admin-secondary { background: transparent; color: var(--ink); }
.admin-error { min-height: 22px; color: #9d2d1f; font-weight: 700; }
.admin-panel { display: none; margin-top: 24px; border-top: 1px solid var(--line); padding-top: 20px; }
.admin-panel.is-visible { display: block; }
.admin-panel ul { margin: 14px 0 0; padding-left: 18px; color: var(--muted); }
.admin-panel-head { display: grid; gap: 6px; margin-bottom: 22px; }
.admin-builder-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.54); }
.admin-builder-form label { display: grid; gap: 6px; font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.admin-builder-form label:nth-child(4), .admin-builder-form label:nth-child(5), .admin-builder-form .admin-actions { grid-column: 1 / -1; }
.admin-content-list { margin-top: 24px; }
.admin-content-list h3 { font-size: 1.45rem; }
.admin-empty { padding: 18px; border: 1px dashed var(--line); border-radius: 8px; }
.admin-list-item { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.admin-list-item div { display: grid; gap: 4px; }
.admin-list-item span, .admin-list-item small { color: var(--muted); }
.admin-list-item button { min-height: 38px; border: 1px solid #9d2d1f; border-radius: 4px; padding: 8px 12px; background: transparent; color: #9d2d1f; font-weight: 800; cursor: pointer; }
.admin-bottom-actions { border-top: 1px solid var(--line); padding-top: 18px; }

.admin-created-content { padding-block: clamp(72px, 10vw, 120px); }
.created-heading { display: grid; grid-template-columns: minmax(0, 6fr) minmax(220px, 3fr); gap: 28px; align-items: end; margin-bottom: 34px; }
.created-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.created-card { min-height: 240px; padding: clamp(22px, 3vw, 34px); border: 1px solid var(--line); border-radius: 8px; background: var(--warm); box-shadow: 0 22px 60px rgba(3,17,31,.08); }
.created-card span, .created-card small { display: block; color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.created-card small { margin-top: 6px; color: var(--green); }
.created-card h3 { margin-top: 22px; }
.created-card p { margin-top: 14px; color: var(--muted); }

@media (max-width: 900px) {
  .site-header, .site-header.light { position: relative; align-items: flex-start; flex-direction: column; background: var(--deep); color: #fff; }
  .hero { min-height: 840px; }
  .hero-center { top: 8%; }
  .hero-center h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  .hero-center span { margin-top: 14px; }
  .hero-card { width: calc(100% - 36px); left: 18px; min-height: 142px; padding: 20px; }
  .hero-card strong { font-size: clamp(1.25rem, 7vw, 1.85rem); }
  .hero-card.tank { right: auto; left: 18px; bottom: 18px; }
  .hero-card.plants { left: 18px; bottom: 176px; }
  .hero-card.marine { bottom: 334px; }
  .intro, .feature-split, .band-grid, .footer-content, .services, .variants, .service-list, .article { grid-template-columns: 1fr; }
  .created-heading, .created-grid, .admin-builder-form { grid-template-columns: 1fr; }
  .admin-builder-form label:nth-child(4), .admin-builder-form label:nth-child(5), .admin-builder-form .admin-actions { grid-column: auto; }
  .article-main, .article-aside { grid-column: 1; }
  .article-aside { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; padding-top: 18px; }
  .site-footer.compact .footer-content { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes drift {
    0%, 100% { margin-left: 0; margin-top: 0; }
    50% { margin-left: 18px; margin-top: -9px; }
  }

  @keyframes rise {
    from { transform: translateY(0) scale(1); opacity: .05; }
    20% { opacity: .7; }
    to { transform: translateY(-260px) scale(1.45); opacity: 0; }
  }
}