:root {
  --bg: #0d2028;
  --surface: rgba(14, 40, 49, 0.78);
  --surface-strong: rgba(19, 52, 62, 0.96);
  --ink: #eef6f3;
  --muted: #b8d0cb;
  --accent: #ff8e72;
  --accent-deep: #e4634a;
  --moss: #7ad1bf;
  --line: rgba(189, 231, 224, 0.16);
  --shadow: 0 30px 70px rgba(3, 13, 17, 0.34);
  --display: "Fraunces", serif;
  --body: "Space Grotesk", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --radius-lg: 2rem;
  --radius-md: 1.5rem;
  --max-width: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: 7rem;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--body);
  background:
    radial-gradient(circle at top right, rgba(255, 142, 114, 0.26), transparent 24rem),
    radial-gradient(circle at left 18%, rgba(122, 209, 191, 0.16), transparent 24rem),
    radial-gradient(circle at bottom, rgba(68, 133, 154, 0.18), transparent 30rem),
    linear-gradient(180deg, #102f3a 0%, var(--bg) 44%, #08161b 100%);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.hero,
.section,
.site-footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.button,
.product-card,
.principle-card {
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.button:hover,
.button:focus-visible,
.product-card:hover,
.product-card:focus-within,
.principle-card:hover,
.principle-card:focus-within {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff6f2;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  box-shadow: 0 18px 38px rgba(228, 99, 74, 0.28);
}

.button-secondary {
  background: rgba(11, 29, 36, 0.5);
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: 2rem;
  align-items: center;
  padding: 3.2rem 0 2.2rem;
}

.hero-copy h1,
.section-heading h2,
.approach-panel h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero-copy h1 {
  max-width: 8ch;
  font-size: clamp(4.1rem, 11vw, 7.6rem);
}

.hero-lead,
.section-heading p,
.product-card p,
.principle-card p,
.approach-lead {
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.product-card,
.approach-panel,
.principle-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(189, 231, 224, 0.16);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-mark {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 43rem;
  padding: 1rem 0.5rem;
}

.under-construction-banner {
  position: absolute;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, rgba(255, 142, 114, 0.95), rgba(228, 99, 74, 0.95));
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(228, 99, 74, 0.4);
  border: 1px solid rgba(255, 200, 150, 0.4);
}

.construction-icon {
  font-size: 1.4rem;
  animation: pulse-bounce 2s ease-in-out infinite;
}

.under-construction-banner p {
  margin: 0;
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff6f2;
  letter-spacing: 0.02em;
}

@keyframes pulse-bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.hero-mark::before {
  content: "";
  position: absolute;
  inset: 10% 10%;
  border-radius: 24%;
  background:
    radial-gradient(circle at 24% 24%, rgba(255, 171, 147, 0.24), transparent 20%),
    radial-gradient(circle at 74% 26%, rgba(122, 209, 191, 0.24), transparent 22%),
    radial-gradient(circle at 50% 74%, rgba(66, 141, 165, 0.2), transparent 30%);
  filter: blur(38px);
  opacity: 0.88;
}

.hero-tank {
  position: relative;
  isolation: isolate;
  width: min(100%, 38rem);
  aspect-ratio: 1;
  border-radius: 2.8rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.005));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 20px 28px rgba(255, 255, 255, 0.03),
    0 30px 76px rgba(0, 0, 0, 0.24);
  overflow: hidden;
}

.hero-tank::before {
  content: "";
  position: absolute;
  inset: 0.6rem;
  border-radius: 2.15rem;
  background: rgba(255, 255, 255, 0.045);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  z-index: 0;
}

.hero-tank::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(
      108deg,
      rgba(255, 255, 255, 0.12) 0%,
      rgba(255, 255, 255, 0.03) 7%,
      transparent 16%,
      transparent 66%,
      rgba(255, 255, 255, 0.03) 78%,
      transparent 88%
    );
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.45;
  z-index: 8;
}

.hero-tank-image {
  position: absolute;
  top: -8%;
  left: 0;
  width: 100%;
  height: 116%;
  object-fit: cover;
  object-position: center 20%;
  clip-path: inset(6% 0 6% 0);
  display: block;
  z-index: 1;
}

.tank-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.tank-bubble {
  position: absolute;
  width: 0.64rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.22);
  opacity: 0.9;
  filter: blur(0.35px);
  animation: bubble-rise var(--bubble-duration, 7.4s) linear infinite;
  animation-delay: var(--bubble-delay, 0s);
}

.tank-bubble::after {
  content: "";
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
}

.bubble-1 { left: 12%; bottom: 18%; --bubble-duration: 8.1s; --bubble-delay: 0s; --bubble-drift: 0.9rem; }
.bubble-2 { left: 26%; bottom: 13%; --bubble-duration: 7.1s; --bubble-delay: 1.3s; --bubble-drift: -0.8rem; }
.bubble-3 { left: 42%; bottom: 17%; --bubble-duration: 6.4s; --bubble-delay: 2.1s; --bubble-drift: 0.7rem; }
.bubble-4 { left: 58%; bottom: 15%; --bubble-duration: 8.4s; --bubble-delay: 0.8s; --bubble-drift: -1rem; }
.bubble-5 { left: 72%; bottom: 20%; --bubble-duration: 7.8s; --bubble-delay: 1.7s; --bubble-drift: 1.2rem; }
.bubble-6 { left: 84%; bottom: 14%; --bubble-duration: 6.9s; --bubble-delay: 2.9s; --bubble-drift: -0.9rem; }

@keyframes bubble-rise {
  0% { transform: translate3d(0, 0, 0) scale(0.5); opacity: 0; }
  10% { opacity: 0.9; }
  80% { opacity: 0.9; }
  100% { transform: translate3d(var(--bubble-drift, 0.7rem), -18rem, 0) scale(1); opacity: 0; }
}

.plant-sway {
  position: absolute;
  bottom: 8%;
  width: 20%;
  height: 42%;
  background: radial-gradient(circle at 50% 12%, rgba(255,255,255,0.18), transparent 32%);
  filter: blur(8px);
  mix-blend-mode: screen;
  opacity: 0.24;
  animation: plant-sway 5.4s ease-in-out infinite alternate;
}

.plant-left { left: 6%; }
.plant-right { right: 8%; }

@keyframes plant-sway {
  0% { transform: translateX(0) scaleX(1); }
  50% { transform: translateX(0.35rem) scaleX(1.02); }
  100% { transform: translateX(-0.35rem) scaleX(0.98); }
}

.hero-logo {
  position: absolute;
  z-index: 5;
  left: 50%;
  top: 54%;
  width: clamp(11rem, 18vw, 16rem);
  aspect-ratio: 1;
  object-fit: contain;
  transform: translate(-50%, -50%) rotate(-5deg);
  filter:
    drop-shadow(0 18px 34px rgba(2, 12, 17, 0.46))
    drop-shadow(0 0 30px rgba(255, 142, 114, 0.16));
  animation: axolotl-float 6.8s ease-in-out infinite;
}

.tank-lid {
  position: absolute;
  top: 0.9rem;
  left: 3.2rem;
  right: 3.2rem;
  height: 1.5rem;
  border-radius: 1rem 1rem 0.7rem 0.7rem;
  background: linear-gradient(180deg, rgba(43, 76, 86, 0.98), rgba(18, 34, 43, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 18px rgba(0, 0, 0, 0.24);
  z-index: 7;
}

.tank-lid::before {
  content: "";
  position: absolute;
  inset: 0.32rem 1.1rem;
  border-radius: 999px;
  background: repeating-linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.06) 0 8px,
    transparent 8px 16px
  );
  opacity: 0.64;
}

.tank-lid::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0.34rem;
  width: 5rem;
  height: 0.34rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(172, 223, 233, 0.18);
}

.tank-lightbar {
  position: absolute;
  top: 3.35rem;
  left: 3.9rem;
  right: 3.9rem;
  height: 0.76rem;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.22),
    rgba(229, 250, 252, 0.82),
    rgba(255, 255, 255, 0.22)
  );
  box-shadow:
    0 0 18px rgba(194, 243, 248, 0.24),
    0 0 42px rgba(130, 209, 224, 0.12);
  z-index: 6;
  animation: light-pulse 6s ease-in-out infinite;
}

.tank-water {
  position: absolute;
  inset: 4.7rem 1.2rem 1.2rem;
  border-radius: 1.9rem 1.9rem 2.2rem 2.2rem;
  background:
    linear-gradient(
      180deg,
      rgba(27, 84, 100, 0.82) 0%,
      rgba(13, 45, 55, 0.88) 45%,
      rgba(7, 22, 29, 0.97) 100%
    ),
    url('Fish Tank.jpg') no-repeat center/cover;
  border: 1px solid rgba(188, 238, 235, 0.14);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -20px 40px rgba(3, 9, 12, 0.28);
  overflow: hidden;
  isolation: isolate;
}

.tank-water::before {
  content: "";
  position: absolute;
  inset: -16%;
  background:
    radial-gradient(circle at 25% 22%, rgba(255, 255, 255, 0.16), transparent 18%),
    radial-gradient(circle at 68% 24%, rgba(122, 209, 191, 0.14), transparent 22%),
    repeating-linear-gradient(
      115deg,
      transparent 0 22px,
      rgba(255, 255, 255, 0.06) 22px 30px,
      transparent 30px 56px
    );
  mix-blend-mode: screen;
  opacity: 0.28;
  animation: tank-caustics 15s linear infinite;
  z-index: 1;
}

.tank-water::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      106deg,
      rgba(255, 255, 255, 0.18) 0 7%,
      transparent 12% 32%,
      rgba(255, 255, 255, 0.08) 37%,
      transparent 42% 100%
    ),
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.12),
      transparent 14%,
      transparent 72%,
      rgba(255, 255, 255, 0.06)
    );
  pointer-events: none;
  z-index: 8;
}

.tank-surface {
  position: absolute;
  top: 2.55rem;
  left: 1.4rem;
  right: 1.4rem;
  height: 0.55rem;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.18),
    rgba(218, 251, 255, 0.6),
    rgba(255, 255, 255, 0.18)
  );
  box-shadow: 0 0 14px rgba(173, 238, 245, 0.18);
  opacity: 0.92;
  z-index: 6;
  animation: surface-breathe 4.8s ease-in-out infinite;
}

.tank-filter {
  position: absolute;
  top: 1.55rem;
  right: 1.25rem;
  width: 1.6rem;
  height: 12rem;
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(44, 78, 88, 0.9), rgba(14, 28, 36, 0.95));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 10px 24px rgba(2, 10, 14, 0.22);
  z-index: 4;
}

.tank-filter::before {
  content: "";
  position: absolute;
  top: 1rem;
  right: 1.24rem;
  width: 2.35rem;
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(151, 229, 235, 0.16);
  box-shadow: 0 0 12px rgba(151, 229, 235, 0.12);
}

.tank-filter::after {
  content: "";
  position: absolute;
  bottom: 1.2rem;
  left: 50%;
  width: 0.44rem;
  height: 3.5rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(61, 111, 122, 0.9), rgba(23, 50, 59, 0.95));
}

.tank-heater {
  position: absolute;
  top: 3rem;
  left: 1.35rem;
  width: 0.8rem;
  height: 10.4rem;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(84, 104, 114, 0.92), rgba(22, 37, 43, 0.96));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  z-index: 4;
}

.tank-heater::before {
  content: "";
  position: absolute;
  top: 0.75rem;
  left: 50%;
  width: 0.28rem;
  height: 1rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(255, 118, 88, 0.9);
  box-shadow: 0 0 10px rgba(255, 118, 88, 0.45);
}

.tank-heater::after {
  content: "";
  position: absolute;
  top: -0.55rem;
  left: 50%;
  width: 1.4rem;
  height: 0.4rem;
  transform: translateX(-50%);
  border-radius: 999px;
  background: rgba(191, 235, 240, 0.16);
}

.tank-beam {
  position: absolute;
  top: -8%;
  bottom: 22%;
  width: 18%;
  background: linear-gradient(
    180deg,
    rgba(208, 247, 250, 0.28),
    rgba(120, 203, 221, 0.08) 42%,
    rgba(29, 95, 112, 0) 100%
  );
  transform: skewX(-18deg);
  filter: blur(1px);
  opacity: 0.24;
  z-index: 1;
  animation: beam-drift 10s ease-in-out infinite;
}

.tank-beam-1 {
  left: 7%;
  animation-duration: 11s;
}

.tank-beam-2 {
  left: 32%;
  width: 22%;
  animation-duration: 9.4s;
  animation-delay: 1.2s;
}

.tank-beam-3 {
  right: 10%;
  animation-duration: 12s;
  animation-delay: 0.6s;
}

.tank-particle {
  position: absolute;
  z-index: 2;
  width: 0.4rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(240, 255, 255, 0.65),
    rgba(255, 255, 255, 0) 62%
  );
  opacity: 0.55;
  animation: particle-drift 9s ease-in-out infinite;
}

.particle-1 {
  left: 14%;
  top: 18%;
  width: 0.34rem;
  animation-duration: 8.2s;
}

.particle-2 {
  left: 22%;
  top: 48%;
  width: 0.6rem;
  animation-duration: 10.6s;
  animation-delay: 0.8s;
}

.particle-3 {
  left: 68%;
  top: 28%;
  width: 0.44rem;
  animation-duration: 7.8s;
  animation-delay: 1.4s;
}

.particle-4 {
  left: 80%;
  top: 56%;
  width: 0.52rem;
  animation-duration: 9.8s;
  animation-delay: 2.2s;
}

.particle-5 {
  left: 38%;
  top: 22%;
  width: 0.28rem;
  animation-duration: 8.6s;
  animation-delay: 1.1s;
}

.particle-6 {
  left: 56%;
  top: 44%;
  width: 0.36rem;
  animation-duration: 11.2s;
  animation-delay: 2.6s;
}

.hero-logo {
  position: absolute;
  z-index: 5;
  left: 50%;
  top: 27%;
  width: clamp(17rem, 32vw, 24rem);
  aspect-ratio: 1;
  object-fit: contain;
  transform: translateX(-50%) rotate(-5deg);
  filter:
    drop-shadow(0 18px 34px rgba(2, 12, 17, 0.46))
    drop-shadow(0 0 30px rgba(255, 142, 114, 0.16));
  animation: axolotl-float 6.8s ease-in-out infinite;
}

.tank-bubble {
  position: absolute;
  bottom: 5.6rem;
  z-index: 3;
  width: 0.9rem;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(212, 245, 255, 0.35);
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 58%);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.08);
  opacity: 0;
  animation: bubble-rise 7s linear infinite;
}

.bubble-1 {
  left: 13%;
  --bubble-drift: 1rem;
  --bubble-rise: 17rem;
  --bubble-start: 0.55;
  --bubble-end: 1.1;
  animation-duration: 7.2s;
}

.bubble-2 {
  left: 24%;
  --bubble-drift: -0.8rem;
  --bubble-rise: 14rem;
  --bubble-start: 0.45;
  --bubble-end: 0.95;
  animation-duration: 6.4s;
  animation-delay: 1.8s;
}

.bubble-3 {
  left: 38%;
  width: 0.72rem;
  --bubble-drift: 0.7rem;
  --bubble-rise: 12rem;
  --bubble-start: 0.42;
  --bubble-end: 0.92;
  animation-duration: 6.2s;
  animation-delay: 0.4s;
}

.bubble-4 {
  left: 68%;
  --bubble-drift: 1rem;
  --bubble-rise: 19rem;
  --bubble-start: 0.6;
  --bubble-end: 1.16;
  animation-duration: 7.8s;
  animation-delay: 0.8s;
}

.bubble-5 {
  left: 77%;
  --bubble-drift: -1.1rem;
  --bubble-rise: 15rem;
  --bubble-start: 0.42;
  --bubble-end: 0.9;
  animation-duration: 6.8s;
  animation-delay: 2.7s;
}

.bubble-6 {
  left: 86%;
  width: 0.7rem;
  --bubble-drift: 0.8rem;
  --bubble-rise: 13rem;
  --bubble-start: 0.38;
  --bubble-end: 0.86;
  animation-duration: 5.8s;
  animation-delay: 1.4s;
}

.tank-plant {
  position: absolute;
  bottom: 5rem;
  z-index: 4;
  width: 5.8rem;
  height: 9rem;
}

.tank-plant-left {
  left: 1.8rem;
}

.tank-plant-mid {
  left: 50%;
  width: 5.1rem;
  height: 7.2rem;
  transform: translateX(-50%);
  opacity: 0.82;
}

.tank-plant-right {
  right: 1.7rem;
  transform: scaleX(-1);
}

.tank-plant span {
  position: absolute;
  bottom: 0;
  width: 0.85rem;
  border-radius: 999px 999px 0 999px;
  background: linear-gradient(180deg, rgba(122, 209, 191, 0.9), rgba(15, 56, 64, 0.2));
  box-shadow: 0 8px 14px rgba(5, 15, 18, 0.16);
  transform-origin: center bottom;
  animation: kelp-sway var(--duration, 5.8s) ease-in-out infinite;
}

.tank-plant span:nth-child(1) {
  left: 0.25rem;
  height: 54%;
  --kelp-start: -14deg;
  --kelp-mid: 8deg;
  --duration: 5.2s;
}

.tank-plant span:nth-child(2) {
  left: 1.55rem;
  height: 100%;
  --kelp-start: -8deg;
  --kelp-mid: 12deg;
  --duration: 6.2s;
  animation-delay: 0.8s;
}

.tank-plant span:nth-child(3) {
  left: 2.9rem;
  height: 72%;
  --kelp-start: -16deg;
  --kelp-mid: 6deg;
  --duration: 4.8s;
  animation-delay: 1.4s;
}

.tank-plant span:nth-child(4) {
  left: 4.1rem;
  height: 88%;
  --kelp-start: -10deg;
  --kelp-mid: 10deg;
  --duration: 5.6s;
  animation-delay: 0.5s;
}

.tank-rock {
  position: absolute;
  bottom: 4.5rem;
  z-index: 3;
  background:
    radial-gradient(circle at 26% 32%, rgba(255, 255, 255, 0.1), transparent 18%),
    linear-gradient(180deg, rgba(111, 128, 136, 0.84), rgba(49, 62, 69, 0.96));
  box-shadow:
    inset 0 10px 16px rgba(255, 255, 255, 0.05),
    0 16px 18px rgba(3, 10, 14, 0.18);
}

.tank-rock::before {
  content: "";
  position: absolute;
  inset: auto 14% 18% 14%;
  height: 24%;
  background:
    radial-gradient(circle at 10% 50%, rgba(255, 255, 255, 0.18) 0 12%, transparent 14%),
    radial-gradient(circle at 38% 42%, rgba(255, 255, 255, 0.12) 0 10%, transparent 12%),
    radial-gradient(circle at 72% 50%, rgba(255, 255, 255, 0.14) 0 12%, transparent 14%);
  opacity: 0.45;
}

.tank-rock-left {
  left: 4.8rem;
  width: 5.5rem;
  height: 3.5rem;
  border-radius: 42% 58% 36% 64% / 52% 45% 55% 48%;
}

.tank-rock-center {
  left: 50%;
  width: 6.3rem;
  height: 4rem;
  border-radius: 44% 56% 42% 58% / 48% 46% 54% 52%;
  transform: translateX(-50%);
}

.tank-rock-right {
  right: 5rem;
  width: 5rem;
  height: 3.2rem;
  border-radius: 56% 44% 58% 42% / 48% 52% 48% 52%;
}

.tank-sand {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 7.5rem;
  background:
    radial-gradient(circle at 12% 34%, rgba(255, 213, 181, 0.14) 0 5%, transparent 5.6%),
    radial-gradient(circle at 24% 52%, rgba(255, 213, 181, 0.12) 0 4.2%, transparent 4.8%),
    radial-gradient(circle at 44% 28%, rgba(255, 213, 181, 0.14) 0 4.4%, transparent 5%),
    radial-gradient(circle at 62% 50%, rgba(255, 213, 181, 0.12) 0 4.2%, transparent 4.8%),
    radial-gradient(circle at 82% 30%, rgba(255, 213, 181, 0.14) 0 4.8%, transparent 5.4%),
    linear-gradient(180deg, rgba(134, 95, 68, 0.74), rgba(77, 53, 39, 0.96) 42%, rgba(42, 28, 22, 0.98) 100%);
  border-top: 1px solid rgba(255, 220, 196, 0.08);
  border-radius: 42% 42% 0 0 / 24% 24% 0 0;
  z-index: 2;
}

.tank-sand::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 14% 42%, rgba(255, 240, 231, 0.14) 0 1.4%, transparent 1.8%),
    radial-gradient(circle at 21% 62%, rgba(255, 240, 231, 0.1) 0 1.2%, transparent 1.6%),
    radial-gradient(circle at 36% 48%, rgba(255, 240, 231, 0.14) 0 1.3%, transparent 1.7%),
    radial-gradient(circle at 53% 58%, rgba(255, 240, 231, 0.12) 0 1.1%, transparent 1.5%),
    radial-gradient(circle at 74% 44%, rgba(255, 240, 231, 0.16) 0 1.3%, transparent 1.8%),
    radial-gradient(circle at 86% 54%, rgba(255, 240, 231, 0.12) 0 1.1%, transparent 1.5%);
  opacity: 0.68;
}

.tank-sand::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1rem;
  background: linear-gradient(180deg, rgba(255, 233, 214, 0.08), transparent);
  opacity: 0.6;
}

.section {
  padding: 2.4rem 0 3rem;
}

.section-heading {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.section-heading h2,
.approach-panel h2 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

.product-grid,
.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.product-card {
  min-height: 13.5rem;
  padding: 1.35rem;
  background:
    linear-gradient(180deg, rgba(26, 64, 76, 0.88), rgba(12, 33, 40, 0.9)),
    var(--surface);
}

.product-card:nth-child(2) {
  background:
    linear-gradient(180deg, rgba(51, 91, 87, 0.92), rgba(16, 38, 41, 0.9)),
    var(--surface);
}

.product-card:nth-child(3) {
  background:
    linear-gradient(180deg, rgba(35, 52, 79, 0.9), rgba(16, 34, 46, 0.92)),
    var(--surface);
}

.product-card h3,
.principle-card h3 {
  margin: 0;
  font-size: 1.24rem;
}

.approach-panel {
  padding: 1.4rem;
  background:
    radial-gradient(circle at top right, rgba(255, 142, 114, 0.18), transparent 18rem),
    linear-gradient(180deg, rgba(17, 46, 55, 0.92), rgba(10, 29, 37, 0.95));
}

.approach-lead {
  max-width: 42rem;
}

.principle-grid {
  margin-top: 1.2rem;
}

.principle-card {
  min-height: 11.5rem;
  padding: 1.2rem;
  background: rgba(9, 26, 32, 0.62);
}

.principle-card:first-child {
  border-top-left-radius: 2.3rem;
}

.principle-card:last-child {
  border-bottom-right-radius: 2.3rem;
}

.nexus-shop-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.nexus-description {
  background:
    radial-gradient(circle at top left, rgba(122, 209, 191, 0.12), transparent 15rem),
    linear-gradient(135deg, rgba(26, 64, 76, 0.88), rgba(12, 33, 40, 0.9)),
    var(--surface);
  border: 1px solid rgba(189, 231, 224, 0.16);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  padding: 1.8rem;
}

.nexus-description p {
  margin: 0 0 1.2rem;
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.nexus-description p:last-child {
  margin-bottom: 0;
}

.nexus-features {
  background:
    radial-gradient(circle at bottom right, rgba(255, 142, 114, 0.12), transparent 15rem),
    linear-gradient(135deg, rgba(35, 52, 79, 0.88), rgba(16, 34, 46, 0.92)),
    var(--surface);
  border: 1px solid rgba(189, 231, 224, 0.16);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  padding: 1.8rem;
}

.nexus-features h3 {
  margin: 0 0 1.2rem;
  font-family: var(--display);
  font-size: 1.24rem;
  font-weight: 700;
}

.features-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.features-list li {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.9rem;
  padding-left: 1.5rem;
  position: relative;
}

.features-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.features-list strong {
  color: var(--ink);
  font-weight: 600;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0 2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes axolotl-float {
  0%,
  100% {
    transform: translateX(-50%) translateY(0) rotate(-5deg);
  }

  50% {
    transform: translateX(-50%) translateY(-14px) rotate(2deg);
  }
}

@keyframes tank-sway {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  40% {
    transform: translate(0.2rem, -0.15rem) scale(1.005);
  }

  80% {
    transform: translate(-0.2rem, 0.15rem) scale(1.003);
  }
}

@keyframes tank-caustics {
  0% {
    transform: translate3d(-6%, 0, 0) rotate(0deg);
  }

  50% {
    transform: translate3d(6%, -2%, 0) rotate(4deg);
  }

  100% {
    transform: translate3d(-6%, 0, 0) rotate(0deg);
  }
}

@keyframes light-pulse {
  0%,
  100% {
    opacity: 0.88;
    box-shadow:
      0 0 18px rgba(194, 243, 248, 0.24),
      0 0 42px rgba(130, 209, 224, 0.12);
  }

  50% {
    opacity: 1;
    box-shadow:
      0 0 22px rgba(214, 250, 252, 0.32),
      0 0 52px rgba(130, 209, 224, 0.18);
  }
}

@keyframes surface-breathe {
  0%,
  100% {
    transform: scaleX(1) translateY(0);
    opacity: 0.84;
  }

  50% {
    transform: scaleX(1.04) translateY(2px);
    opacity: 1;
  }
}

@keyframes bubble-rise {
  0% {
    transform: translate3d(0, 0, 0) scale(var(--bubble-start));
    opacity: 0;
  }

  16% {
    opacity: 0.65;
  }

  100% {
    transform: translate3d(
        var(--bubble-drift),
        calc(var(--bubble-rise) * -1),
        0
      )
      scale(var(--bubble-end));
    opacity: 0;
  }
}

@keyframes beam-drift {
  0%,
  100% {
    transform: skewX(-18deg) translateX(0);
  }

  50% {
    transform: skewX(-14deg) translateX(8px);
  }
}

@keyframes particle-drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.3;
  }

  50% {
    transform: translate3d(0.5rem, -0.9rem, 0) scale(1.16);
    opacity: 0.72;
  }
}

@keyframes kelp-sway {
  0%,
  100% {
    transform: rotate(var(--kelp-start));
  }

  50% {
    transform: rotate(var(--kelp-mid));
  }
}

@media (max-width: 980px) {
  .hero,
  .product-grid,
  .principle-grid,
  .nexus-shop-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 2.4rem;
  }

  .hero-copy h1 {
    font-size: clamp(3.3rem, 19vw, 5.4rem);
  }

  .hero-mark {
    min-height: 34rem;
  }

  .hero-tank {
    width: min(100%, 30rem);
  }

  .tank-lid {
    left: 2.1rem;
    right: 2.1rem;
  }

  .tank-lightbar {
    top: 3.05rem;
    left: 2.6rem;
    right: 2.6rem;
  }

  .tank-water {
    inset: 4.3rem 0.9rem 0.9rem;
  }

  .tank-surface {
    left: 1rem;
    right: 1rem;
  }

  .hero-logo {
    width: min(100%, 20rem);
    top: 28%;
  }

  .tank-plant {
    width: 4.8rem;
    height: 7rem;
    bottom: 4.5rem;
  }

  .tank-plant-left {
    left: 1rem;
  }

  .tank-plant-mid {
    width: 4.2rem;
    height: 5.8rem;
  }

  .tank-plant-right {
    right: 1rem;
  }

  .tank-rock-left {
    left: 3.2rem;
  }

  .tank-rock-right {
    right: 3.5rem;
  }

  .tank-filter {
    height: 9.8rem;
  }

  .tank-heater {
    height: 8.5rem;
  }

  .tank-sand {
    height: 6rem;
  }

  .section {
    padding: 2rem 0 2.6rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}