/* ===== FrogNFog — Tropical Frogs ===== */
:root {
  --green-900: #0d2818;
  --green-800: #123524;
  --green-700: #1b4d32;
  --green-600: #2e7d4f;
  --green-500: #4caf50;
  --leaf: #7cb342;
  --moss: #a5d6a7;
  --cream: #f4f9e9;
  --sun: #f2b134;
  --coral: #e86a4a;
  --sky: #8dd7c0;
  --ink: #10281b;

  --radius: 18px;
  --shadow: 0 14px 34px rgba(13, 40, 24, 0.18);
  --font-main: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--ink);
  background: var(--green-900);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(76, 175, 80, 0.20) 0%, transparent 42%),
    radial-gradient(circle at 85% 72%, rgba(124, 179, 66, 0.16) 0%, transparent 45%),
    radial-gradient(circle at 60% 8%, rgba(141, 215, 192, 0.10) 0%, transparent 38%);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- Top navigation ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 40, 24, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(124, 179, 66, 0.22);
}

.nav__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: #fff;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}

.brand__icon {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--leaf), var(--green-500));
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 6px 14px rgba(76, 175, 80, 0.35);
}

.brand span.accent {
  color: var(--moss);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav__links a {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  color: var(--moss);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}

.nav__links a:hover {
  background: rgba(124, 179, 66, 0.18);
  color: #fff;
  transform: translateY(-1px);
}

.nav__links a.active {
  background: var(--leaf);
  color: var(--green-900);
}

/* ---- Layout ---- */
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.hero {
  text-align: center;
  padding: 4rem 1.5rem 3rem;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(124, 179, 66, 0.16);
  border: 1px solid rgba(124, 179, 66, 0.4);
  color: var(--moss);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #fff;
  line-height: 1.08;
  margin-bottom: 1.1rem;
}

h1 .accent {
  color: var(--leaf);
}

.hero__lead {
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  color: var(--moss);
  max-width: 640px;
  margin: 0 auto 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: linear-gradient(145deg, var(--leaf), var(--green-500));
  color: var(--green-900);
  font-weight: 800;
  font-size: 1rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 12px 26px rgba(76, 175, 80, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(76, 175, 80, 0.45);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(124, 179, 66, 0.7);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(124, 179, 66, 0.16);
  box-shadow: none;
}

/* ---- Cards ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
  margin-top: 2rem;
}

.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 42px rgba(13, 40, 24, 0.28);
}

.card__media {
  height: 178px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.card__media svg {
  width: 96px;
  height: 96px;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.18));
  transition: transform 0.3s;
}

.card:hover .card__media svg {
  transform: scale(1.08) rotate(-2deg);
}

.card__body {
  padding: 1.4rem 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(124, 179, 66, 0.16);
  color: var(--green-700);
}

.card h3 {
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--green-800);
}

.card p {
  font-size: 0.94rem;
  color: #41564a;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.6rem;
}

.chip {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: #eef6e6;
  color: var(--green-700);
}

/* ---- Section headings ---- */
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
  color: #fff;
}

.section-title .accent {
  color: var(--leaf);
}

.section-sub {
  color: var(--moss);
  max-width: 620px;
  margin-bottom: 2.2rem;
}

/* ---- Fog divider / decorative ---- */
.fog-band {
  height: 120px;
  background:
    linear-gradient(to top, rgba(13, 40, 24, 0) 0%, rgba(13, 40, 24, 0.5) 100%);
  pointer-events: none;
}

/* ---- Steps / list ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem;
  margin-top: 2rem;
}

.step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(124, 179, 66, 0.28);
  border-radius: var(--radius);
  padding: 1.6rem;
  color: #eef7e8;
}

.step__num {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--leaf);
  color: var(--green-900);
  font-weight: 800;
  margin-bottom: 1rem;
}

.step h4 {
  font-size: 1.08rem;
  margin-bottom: 0.45rem;
  color: #fff;
}

.step p {
  font-size: 0.92rem;
  color: var(--moss);
}

/* ---- Facts ---- */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.fact {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(124, 179, 66, 0.28);
  border-radius: var(--radius);
  padding: 1.4rem;
  color: #eef7e8;
  text-align: center;
}

.fact strong {
  display: block;
  font-size: 2rem;
  color: var(--leaf);
  line-height: 1.1;
}

.fact span {
  font-size: 0.9rem;
  color: var(--moss);
  margin-top: 0.3rem;
  display: block;
}

/* ---- Table ---- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 2rem;
}

.tbl th,
.tbl td {
  text-align: left;
  padding: 0.95rem 1.2rem;
  font-size: 0.95rem;
  border-bottom: 1px solid #e4eee0;
}

.tbl th {
  background: var(--green-800);
  color: #fff;
  font-weight: 700;
}

.tbl tr:last-child td {
  border-bottom: none;
}

.tbl tbody tr:hover {
  background: #f2f9ec;
}

/* ---- Footer ---- */
footer {
  background: rgba(10, 30, 18, 0.85);
  border-top: 1px solid rgba(124, 179, 66, 0.2);
  padding: 2rem 1.5rem;
  color: rgba(232, 245, 233, 0.55);
  text-align: center;
  font-size: 0.85rem;
}

footer a {
  color: var(--moss);
  text-decoration: none;
}

/* ---- Utility ---- */
.stack-lg > * + * {
  margin-top: 1.4rem;
}

.muted {
  color: rgba(232, 245, 233, 0.55);
}

.text-center {
  text-align: center;
}
/* ---- Species cards (Виды) ---- */
.species {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
  margin-top: 2.2rem;
}

.species-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s;
}

.species-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 46px rgba(13, 40, 24, 0.3);
}

.species-card__art {
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 5rem;
  text-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  position: relative;
  overflow: hidden;
}

.species-card__art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 20%, rgba(255, 255, 255, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 80% 85%, rgba(255, 255, 255, 0.14) 0%, transparent 40%);
}

.species-card__art span {
  position: relative;
  z-index: 1;
  transition: transform 0.3s;
}

.species-card:hover .species-card__art span {
  transform: scale(1.12) rotate(-3deg);
}

.species-card__body {
  padding: 1.5rem 1.5rem 1.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
}

.species-card__latin {
  font-size: 0.82rem;
  font-style: italic;
  color: #6b8a75;
}

.species-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--green-800);
}

.species-card p {
  font-size: 0.94rem;
  color: #41564a;
}

/* Earthy / tropical gradient art variants */
.art--leaf {
  background: linear-gradient(145deg, #7cb342, #2e7d4f);
}
.art--gold {
  background: linear-gradient(145deg, #f2b134, #e86a4a);
}
.art--teal {
  background: linear-gradient(145deg, #8dd7c0, #2e7d4f);
}
.art--coral {
  background: linear-gradient(145deg, #e86a4a, #b24a3a);
}
.art--lime {
  background: linear-gradient(145deg, #aed581, #558b2f);
}
.art--sunset {
  background: linear-gradient(145deg, #ffb347, #e86a4a);
}