:root {
  --bg: #f5f8fb;
  --text: #172033;
  --muted: #65728a;
  --primary: #0f8b8d;
  --primary-dark: #0a6365;
  --secondary: #ffb703;
  --card: #ffffff;
  --soft: #e8f3f3;
  --dark: #0d2430;
  --dark-card: #123645;
  --border: rgba(23, 32, 51, 0.12);
  --shadow: 0 20px 60px rgba(20, 39, 56, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--soft);
  box-shadow: inset 0 0 0 1px var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 15px;
  color: var(--muted);
}

.nav a:hover {
  color: var(--primary);
}

.menu-btn {
  display: none;
  border: 0;
  background: var(--primary);
  color: white;
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 20px;
  cursor: pointer;
}

.hero {
  padding: 80px 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(15, 139, 141, 0.22), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(255, 183, 3, 0.24), transparent 25%),
    linear-gradient(180deg, #ffffff, var(--bg));
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 46px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin-top: 0;
}

h1 {
  font-size: clamp(38px, 6vw, 68px);
  margin-bottom: 22px;
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.hero-text {
  font-size: 19px;
  color: var(--muted);
  max-width: 680px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  cursor: pointer;
  font-weight: 800;
  font-size: 15px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 12px 25px rgba(15, 139, 141, 0.28);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: white;
  color: var(--text);
  border: 1px solid var(--border);
}

.stats {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.stats div {
  background: white;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px 20px;
  min-width: 130px;
  box-shadow: 0 12px 32px rgba(20, 39, 56, 0.08);
}

.stats strong {
  display: block;
  font-size: 30px;
  color: var(--primary);
  line-height: 1;
}

.stats span {
  color: var(--muted);
  font-size: 14px;
}

.hero-card {
  background: var(--card);
  border-radius: 32px;
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.water {
  position: relative;
  height: 260px;
  overflow: hidden;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.7), transparent),
    linear-gradient(135deg, #6bd4d6, #0f8b8d);
  margin-bottom: 22px;
}

.float {
  position: absolute;
  top: 34px;
  left: 50%;
  width: 12px;
  height: 80px;
  background: #f94144;
  border-radius: 999px;
  transform: translateX(-50%);
  box-shadow: 0 0 0 5px white;
  animation: bob 2s infinite ease-in-out;
}

.fish {
  position: absolute;
  font-size: 42px;
  filter: drop-shadow(0 8px 10px rgba(0,0,0,0.15));
}

.fish-one {
  left: 15%;
  top: 52%;
  animation: swim 6s infinite linear;
}

.fish-two {
  right: 12%;
  top: 62%;
  animation: swimBack 7s infinite linear;
}

.wave {
  position: absolute;
  left: -20%;
  bottom: -40px;
  width: 140%;
  height: 120px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  animation: wave 5s infinite ease-in-out;
}

.wave-two {
  bottom: -62px;
  animation-duration: 7s;
  opacity: 0.55;
}

@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

@keyframes swim {
  0% { transform: translateX(-20px); }
  50% { transform: translateX(120px); }
  100% { transform: translateX(-20px); }
}

@keyframes swimBack {
  0% { transform: translateX(20px) scaleX(-1); }
  50% { transform: translateX(-120px) scaleX(-1); }
  100% { transform: translateX(20px) scaleX(-1); }
}

@keyframes wave {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(40px); }
}

.section {
  padding: 78px 0;
}

.section-title {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-title h2 {
  margin-bottom: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card,
.gear-box,
.helper-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 26px;
  box-shadow: 0 14px 40px rgba(20, 39, 56, 0.08);
}

.card-icon {
  display: inline-grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  background: var(--soft);
  font-size: 28px;
  margin-bottom: 18px;
}

.card p,
.fish-item p,
.gear-box li,
.timeline-item p,
.hero-card p {
  color: var(--muted);
}

.section-dark {
  background: var(--dark);
  color: white;
}

.section-dark .eyebrow {
  color: var(--secondary);
}

.fish-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.fish-item {
  background: var(--dark-card);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  padding: 24px;
}

.fish-item p {
  color: rgba(255,255,255,0.74);
}

.gear-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.gear-box ul {
  padding-left: 20px;
  margin-bottom: 0;
}

.gear-box li {
  margin-bottom: 8px;
}

.section-soft {
  background: var(--soft);
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 18px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 22px;
  align-items: start;
}

.timeline-item span {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  background: var(--primary);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 22px;
}

.timeline-item h3,
.timeline-item p {
  margin-bottom: 0;
}

.helper-box {
  max-width: 760px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

label {
  font-weight: 700;
}

select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 13px 14px;
  background: white;
  color: var(--text);
  font-size: 16px;
}

.advice {
  margin-top: 20px;
  background: var(--soft);
  border: 1px solid rgba(15, 139, 141, 0.2);
  border-radius: 18px;
  padding: 18px;
  color: var(--text);
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 800px;
}

.checklist label {
  background: white;
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  cursor: pointer;
}

.checklist input {
  width: 18px;
  height: 18px;
}

.progress {
  margin-top: 22px;
  max-width: 800px;
  height: 14px;
  background: white;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.25s ease;
}

.progress-text {
  font-weight: 800;
  color: var(--primary);
}

.site-footer {
  background: #071820;
  color: rgba(255,255,255,0.8);
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.to-top {
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: white;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.to-top:hover {
  background: rgba(255,255,255,0.16);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: 0.55s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero-grid,
  .cards,
  .gear-grid,
  .fish-list {
    grid-template-columns: 1fr;
  }

  .nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 78px;
    display: none;
    flex-direction: column;
    background: white;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 18px;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .menu-btn {
    display: block;
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .section,
  .hero {
    padding: 52px 0;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}