/* ==========================================================================
   Quality Ornamental Fish Farm — stylesheet
   Sections: tokens, base, layout, header, hero, about, fish, why, care,
             reviews, contact, footer, motion, responsive
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --deep:      #063d4f;
  --deep-2:    #0a5c73;
  --teal:      #0d8ba1;
  --aqua:      #35c1c9;
  --sand:      #f7f3ea;
  --coral:     #ff7a59;
  --gold:      #f2b544;

  --ink:       #10262e;
  --ink-soft:  #476b76;
  --line:      #dde7e9;
  --bg:        #ffffff;
  --bg-tint:   #f2f8f9;

  --radius:    18px;
  --radius-sm: 12px;
  --shadow:    0 10px 30px rgba(6, 61, 79, .09);
  --shadow-lg: 0 24px 60px rgba(6, 61, 79, .16);

  --wrap:      1140px;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Fraunces", Georgia, "Times New Roman", serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1rem; }
a { color: var(--teal); }
img, svg { max-width: 100%; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--deep); color: #fff; padding: .75rem 1.25rem; z-index: 200;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- layout ---------- */
.container { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }

.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section-tint { background: var(--bg-tint); }
.section-deep {
  background: linear-gradient(160deg, var(--deep) 0%, var(--deep-2) 60%, var(--teal) 130%);
  color: #eaf7f9;
}
.section-deep .eyebrow { color: var(--aqua); }
.section-deep h2, .section-deep h3 { color: #fff; }
.section-deep .section-sub { color: rgba(234, 247, 249, .8); }

.section-head { max-width: 46rem; margin-bottom: 2.75rem; }
.section-sub { color: var(--ink-soft); font-size: 1.05rem; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .75rem;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: .6rem;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font: inherit; font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn-primary { background: var(--coral); color: #fff; box-shadow: 0 8px 22px rgba(255, 122, 89, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255, 122, 89, .45); }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); transform: translateY(-2px); }
.section .btn-ghost:hover { background: rgba(13, 139, 161, .1); }
.btn-block { width: 100%; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--deep); }
.brand-mark { width: 34px; height: 34px; color: var(--teal); flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-head); font-size: 1.1rem; }
.brand-text em {
  font-style: normal; font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-soft);
}

.site-nav { display: flex; align-items: center; gap: 1.6rem; }
.site-nav a {
  text-decoration: none; color: var(--ink); font-weight: 500; font-size: .95rem;
  padding: .25rem 0; border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a.is-active { color: var(--teal); border-bottom-color: var(--teal); }
.site-nav .nav-cta {
  background: var(--deep); color: #fff; padding: .55rem 1.2rem;
  border-radius: 999px; border-bottom: none;
}
.site-nav .nav-cta:hover { background: var(--teal); color: #fff; border-bottom-color: transparent; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  flex-direction: column; justify-content: center; gap: 5px;
  background: none; border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer; padding: 0 10px;
}
.nav-toggle span { display: block; height: 2px; background: var(--deep); transition: transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  color: #eaf7f9;
  background:
    radial-gradient(1200px 500px at 15% -10%, rgba(53, 193, 201, .55), transparent 60%),
    linear-gradient(165deg, #052f3d 0%, var(--deep-2) 55%, var(--teal) 120%);
  padding: clamp(4.5rem, 11vw, 8rem) 0 clamp(6rem, 10vw, 8rem);
  overflow: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 46rem; }
.hero .eyebrow { color: var(--gold); }
.hero h1 { color: #fff; text-shadow: 0 4px 24px rgba(0, 0, 0, .2); }
.lede { font-size: clamp(1.02rem, 1.6vw, 1.18rem); color: rgba(234, 247, 249, .88); max-width: 40rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin: 2rem 0 3rem; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem; list-style: none; margin: 0; padding: 0;
  border-top: 1px solid rgba(255, 255, 255, .22); padding-top: 1.75rem;
}
.hero-stats strong {
  display: block; font-family: var(--font-head); font-size: 1.6rem; color: var(--gold);
}
.hero-stats span { font-size: .85rem; color: rgba(234, 247, 249, .78); }

.wave { position: absolute; left: 0; right: 0; bottom: -1px; line-height: 0; z-index: 1; }
.wave svg { width: 100%; height: 90px; display: block; fill: #fff; }

/* rising bubbles */
.bubbles { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.bubbles span {
  position: absolute; bottom: -60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .25);
  animation: rise linear infinite;
}
.bubbles span:nth-child(1)  { left:  4%; width: 14px; height: 14px; animation-duration: 15s; }
.bubbles span:nth-child(2)  { left: 14%; width: 26px; height: 26px; animation-duration: 19s; animation-delay: 2s; }
.bubbles span:nth-child(3)  { left: 26%; width:  9px; height:  9px; animation-duration: 12s; animation-delay: 4s; }
.bubbles span:nth-child(4)  { left: 38%; width: 18px; height: 18px; animation-duration: 17s; animation-delay: 1s; }
.bubbles span:nth-child(5)  { left: 49%; width: 11px; height: 11px; animation-duration: 14s; animation-delay: 6s; }
.bubbles span:nth-child(6)  { left: 60%; width: 30px; height: 30px; animation-duration: 22s; animation-delay: 3s; }
.bubbles span:nth-child(7)  { left: 71%; width: 13px; height: 13px; animation-duration: 16s; animation-delay: 7s; }
.bubbles span:nth-child(8)  { left: 80%; width: 21px; height: 21px; animation-duration: 20s; animation-delay: 5s; }
.bubbles span:nth-child(9)  { left: 89%; width: 10px; height: 10px; animation-duration: 13s; animation-delay: 8s; }
.bubbles span:nth-child(10) { left: 96%; width: 16px; height: 16px; animation-duration: 18s; animation-delay: 2.5s; }

@keyframes rise {
  0%   { transform: translateY(0) scale(.7); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: .7; }
  100% { transform: translateY(-105vh) scale(1.1); opacity: 0; }
}

/* ---------- about ---------- */
.split {
  display: grid; grid-template-columns: 1fr 1.05fr;
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.split-body { max-width: 34rem; }

.split-media { margin: 0; }
.split-media img {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.split-media figcaption {
  margin-top: .75rem; font-size: .85rem; color: var(--ink-soft); text-align: center;
}

.tick-list { list-style: none; padding: 0; margin: 1.5rem 0 2rem; }
.tick-list li { position: relative; padding-left: 1.9rem; margin-bottom: .6rem; color: var(--ink-soft); }
.tick-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  width: 1.3rem; height: 1.3rem; line-height: 1.3rem; text-align: center;
  border-radius: 50%; background: rgba(13, 139, 161, .12); color: var(--teal);
  font-size: .8rem; font-weight: 700;
}

/* ---------- fish grid ---------- */
.filters { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2rem; }
.chip {
  padding: .5rem 1.1rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: #fff; color: var(--ink-soft);
  font: inherit; font-size: .9rem; font-weight: 500;
  cursor: pointer; transition: all .18s ease;
}
.chip:hover { border-color: var(--teal); color: var(--teal); }
.chip.is-active { background: var(--deep); border-color: var(--deep); color: #fff; }

.fish-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(255px, 1fr));
  gap: 1.5rem;
}
.fish-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .22s ease, box-shadow .22s ease;
}
.fish-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.fish-card.is-hidden { display: none; }

.fish-art { height: 150px; position: relative; overflow: hidden; background: var(--bg-tint); }
.fish-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
/* the diagonal sheen only belongs on the placeholder colour panels */
.fish-art:not(:has(img))::after {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(125deg, rgba(255,255,255,.14) 0 10px, transparent 10px 26px);
}
.art-albino-red { background: linear-gradient(135deg, #ffd9d0, #ff5f6d); }
.art-blue-grass { background: linear-gradient(135deg, #1fa2ff, #12d8fa); }
.art-moscow     { background: linear-gradient(135deg, #3a1c71, #1e5799); }
.art-red-koi    { background: linear-gradient(135deg, #fff6f0 40%, #ff3d2e); }
.art-blue-koi   { background: linear-gradient(135deg, #f4faff 40%, #2b6bd6); }
.art-mosaic     { background: linear-gradient(135deg, #f9d423, #1fa2ff); }
.art-dumbo      { background: linear-gradient(135deg, #d9e7ef, #7b9bb5); }
.art-half-black { background: linear-gradient(135deg, #ff8a5c 45%, #14181d); }
.art-platinum   { background: linear-gradient(135deg, #f6f9fb, #c9d6df); }
.art-red-dragon { background: linear-gradient(135deg, #d84315, #8e2de2); }

.fish-body { padding: 1.25rem 1.35rem 1.5rem; }
.fish-body h3 { margin-bottom: .25rem; }
.fish-meta { font-size: .82rem; color: var(--teal); font-weight: 500; margin-bottom: .6rem; }
.fish-body p { color: var(--ink-soft); font-size: .95rem; margin-bottom: .9rem; }
.tag {
  display: inline-block;
  font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  padding: .3rem .7rem; border-radius: 999px;
  background: rgba(13, 139, 161, .1); color: var(--deep-2);
}

.grid-note {
  margin-top: 2rem; padding: 1.1rem 1.35rem;
  background: #fff; border: 1px dashed var(--line); border-radius: var(--radius-sm);
  color: var(--ink-soft); font-size: .95rem;
}

/* ---------- videos ---------- */
.video-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem;
}
.video-card {
  text-decoration: none; color: inherit;
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: #fff;
  transition: transform .22s ease, box-shadow .22s ease;
}
.video-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.video-card h3 { font-size: 1rem; margin: 1rem 1.15rem .3rem; }
.video-card p { margin: 0 1.15rem 1.15rem; font-size: .9rem; color: var(--ink-soft); }

.video-thumb { position: relative; aspect-ratio: 16 / 9; background: #0b2530; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-thumb .play {
  position: absolute; inset: 0; margin: auto;
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(6, 61, 79, .78);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .3);
  transition: transform .2s ease, background .2s ease;
}
.video-thumb .play::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 0; height: 0;
  border-left: 17px solid #fff;
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  transform: translateX(3px);
}
.video-card:hover .play { background: var(--coral); transform: scale(1.08); }

/* ---------- why us ---------- */
.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem;
}
.feature {
  padding: 1.75rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, var(--bg-tint));
  transition: transform .2s ease, border-color .2s ease;
}
.feature:hover { transform: translateY(-4px); border-color: var(--aqua); }
.feature-icon {
  width: 48px; height: 48px; display: grid; place-items: center;
  border-radius: 14px; background: rgba(13, 139, 161, .12);
  font-size: 1.4rem; margin-bottom: 1rem;
}
.feature p { color: var(--ink-soft); margin: 0; font-size: .95rem; }

/* ---------- care ---------- */
.care-list {
  list-style: none; counter-reset: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem;
}
.care-list li {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
}
.care-list span {
  font-family: var(--font-head); font-size: 1.5rem; color: var(--gold);
  display: block; margin-bottom: .4rem;
}
.care-list p { color: rgba(234, 247, 249, .82); font-size: .95rem; margin: 0; }

.review-note { margin-top: 2rem; color: var(--ink-soft); }

/* ---------- contact ---------- */
.contact-wrap {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 3.5rem); align-items: start;
}
.contact-list { list-style: none; padding: 0; margin: 1.75rem 0; display: grid; gap: 1.1rem; }
.contact-list li { display: flex; gap: .9rem; align-items: flex-start; }
.contact-list .ci {
  width: 40px; height: 40px; flex: none;
  display: grid; place-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
}
.contact-list strong { display: block; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); }
.contact-list a, .contact-list span:not(.ci) { color: var(--ink); text-decoration: none; font-weight: 500; }
.contact-list a:hover { color: var(--teal); text-decoration: underline; }
.contact-actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.contact-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.9rem;
  box-shadow: var(--shadow-lg);
}
.card-sub { color: var(--ink-soft); font-size: .93rem; }
.contact-card label { display: block; margin-bottom: 1rem; font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.contact-card input,
.contact-card select,
.contact-card textarea {
  width: 100%; margin-top: .35rem;
  padding: .75rem .9rem;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font: inherit; font-weight: 400; color: var(--ink);
  background: #fdfefe;
}
.contact-card input:focus, .contact-card select:focus, .contact-card textarea:focus {
  border-color: var(--aqua); outline: none; box-shadow: 0 0 0 3px rgba(53, 193, 201, .2);
}
.contact-card textarea { resize: vertical; }
.contact-card .is-invalid { border-color: var(--coral); }
.form-note { font-size: .85rem; color: var(--ink-soft); margin: .8rem 0 0; min-height: 1.2em; }

/* ---------- footer ---------- */
.site-footer { background: var(--deep); color: rgba(234, 247, 249, .8); padding: 3rem 0 2rem; }
.footer-inner { display: grid; gap: 1.5rem; }
.footer-brand { font-family: var(--font-head); font-size: 1.25rem; color: #fff; margin: 0; }
.footer-line { margin: .2rem 0 0; font-size: .9rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer-nav a { color: rgba(234, 247, 249, .82); text-decoration: none; font-size: .92rem; }
.footer-nav a:hover { color: var(--aqua); }
.footer-copy {
  margin: 0; padding-top: 1.5rem; font-size: .82rem;
  border-top: 1px solid rgba(255, 255, 255, .14);
  color: rgba(234, 247, 249, .6);
}

/* ---------- whatsapp fab ---------- */
.whatsapp-fab {
  position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 90;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: #25d366; color: #fff;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .45);
  transition: transform .2s ease;
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab svg { width: 28px; height: 28px; }

/* ---------- motion ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bubbles span, .swimmer { animation: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .split, .contact-wrap { grid-template-columns: 1fr; }
  .split-media { order: 2; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: .5rem 1.25rem 1.25rem;
    box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .85rem 0; border-bottom: 1px solid var(--line); }
  .site-nav a:hover, .site-nav a.is-active { border-bottom-color: var(--line); }
  .site-nav .nav-cta { text-align: center; margin-top: .9rem; border: none; }
  .header-inner { position: relative; }
  .hero-actions .btn { flex: 1 1 auto; }
}