/* ═══════════════════════════════════════════════════════
   TOKENS
═══════════════════════════════════════════════════════ */
:root {
  --brown:        #3c1e00;
  --brown-mid:    #7a3b1e;
  --green:        #A1E647;
  --green-dark:   #7dc400;
  --green-light:  #d4f590;
  --cream:        #f5f1e6;
  --cream-deep:   #e9e2c8;
  --white:        #ffffff;
  --text:         #1e1007;
  --text-muted:   #8a7560;
  --border:       rgba(60,30,0,.10);
  --shadow-xs:    0 1px 4px rgba(60,30,0,.07);
  --shadow-sm:    0 2px 10px rgba(60,30,0,.09);
  --shadow-md:    0 6px 28px rgba(60,30,0,.12);
  --shadow-lg:    0 18px 56px rgba(60,30,0,.16);
  --radius-sm:    8px;
  --radius:       14px;
  --radius-lg:    20px;
  --ease:         cubic-bezier(.4,0,.2,1);
}

/* ═══════════════════════════════════════════════════════
   RESET
═══════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Nunito', sans-serif;
  background: var(--cream);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}
button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

/* ═══════════════════════════════════════════════════════
   TOP BARS
═══════════════════════════════════════════════════════ */
.topbar-dark  { background: var(--brown); height: 16px; }
.topbar-green { background: var(--green); height: 11px; }

/* ═══════════════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════════════ */
header {
  background: var(--white);
  display: flex; align-items: center; gap: 20px;
  padding: 16px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 500;
  box-shadow: var(--shadow-xs);
}
.logo { display: flex; align-items: center; text-decoration: none; }
.logo-svg { height: 36px; width: auto; display: block; }
.search-wrap {
  display: flex; align-items: center; gap: 8px;
  background: var(--cream);
  border: 1.5px solid var(--cream-deep);
  border-radius: 30px;
  padding: 7px 16px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.search-wrap:focus-within {
  border-color: var(--green-dark);
  box-shadow: 0 0 0 3px rgba(125,196,0,.14);
}
.search-wrap input {
  border: none; outline: none; background: transparent;
  font-size: 14px; color: var(--text); width: 190px;
}
.search-wrap input::placeholder { color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════
   NAV
═══════════════════════════════════════════════════════ */
nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 48px;
  position: relative; z-index: 400;
}
.nav-list { list-style: none; display: flex; align-items: center; overflow-x: auto; scrollbar-width: none; }
.nav-list::-webkit-scrollbar { display: none; }
.nav-item { position: static; }
.nav-link {
  display: inline-block; text-decoration: none;
  color: var(--text); font-size: 13px; font-weight: 700;
  letter-spacing: .2px; padding: 14px 12px; white-space: nowrap;
  transition: color .18s;
}
.nav-link:hover { color: var(--green-dark); }
.nav-link--home {
  background: var(--brown-mid); color: var(--white) !important;
  padding: 6px 13px; border-radius: 6px; font-size: 11px;
  margin-right: 6px; letter-spacing: .5px; transition: background .18s;
}
.nav-link--home:hover { background: var(--brown); }
.dropdown {
  display: none; position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%);
  width: min(72%, 1100px); min-width: 540px;
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  padding: 26px 30px; z-index: 600;
  animation: fadeDown .16s var(--ease);
}
@keyframes fadeDown {
  from { opacity:0; transform: translateX(-50%) translateY(-8px); }
  to   { opacity:1; transform: translateX(-50%) translateY(0); }
}
.nav-item:hover > .dropdown { display: block; }
.dropdown-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 8px; }
.dd-item {
  display: flex; align-items: center; gap: 9px; text-decoration: none;
  color: var(--text); font-size: 13px; font-weight: 700;
  background: var(--cream); border-radius: var(--radius-sm);
  padding: 10px 12px; transition: background .16s, color .16s, transform .16s;
}
.dd-item:hover { background: var(--green); color: var(--brown); transform: translateY(-2px); }
.dd-thumb { width: 36px; height: 36px; object-fit: contain; border-radius: 5px; background: var(--white); flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════ */
.hero {
  text-align: center;
  padding: 60px 48px 44px;
  background: linear-gradient(155deg, var(--cream) 55%, rgba(161,230,71,.2) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -60px; right: -60px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(161,230,71,.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--green); color: var(--brown);
  font-size: 11px; font-weight: 900;
  letter-spacing: 1.6px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 20px; margin-bottom: 20px;
}
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4.5vw, 50px);
  color: var(--brown); line-height: 1.14; margin-bottom: 16px;
}
.hero h1 em { font-style: italic; color: var(--brown-mid); }
.hero p { color: var(--text-muted); font-size: 16px; max-width: 520px; margin: 0 auto 28px; }
.species-bar {
  display: flex; gap: 0;
  background: var(--white); border-radius: 50px; padding: 5px;
  margin: 0 auto; max-width: 320px;
  box-shadow: var(--shadow-sm); border: 1.5px solid var(--cream-deep);
}
.species-btn {
  flex: 1; padding: 11px 0;
  border: none; border-radius: 40px;
  font-size: 14px; font-weight: 800;
  background: transparent; color: var(--text-muted);
  transition: background .22s var(--ease), color .22s, box-shadow .22s;
  display: flex; align-items: center; justify-content: center; gap: 7px;
}
.species-btn.active { background: var(--brown); color: var(--white); box-shadow: 0 4px 14px rgba(60,30,0,.26); }
.species-btn:not(.active):hover { background: var(--cream); color: var(--text); }

/* ═══════════════════════════════════════════════════════
   CALC WRAPPER
═══════════════════════════════════════════════════════ */
.calc-section { max-width: 1060px; margin: 0 auto; padding: 52px 32px 90px; }
.calc-type-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.ctype-btn {
  padding: 9px 20px;
  border: 2px solid var(--cream-deep); border-radius: 30px;
  background: var(--white); color: var(--text-muted);
  font-size: 13px; font-weight: 800;
  transition: all .18s var(--ease);
  display: flex; align-items: center; gap: 7px;
}
.ctype-btn:hover { border-color: var(--green-dark); color: var(--text); }
.ctype-btn.active { background: var(--green); border-color: var(--green); color: var(--brown); box-shadow: 0 3px 10px rgba(125,196,0,.30); }
.species-panel { display: none; }
.species-panel.active { display: block; }
.calc-panel { display: none; }
.calc-panel.active { display: block; }

/* ═══════════════════════════════════════════════════════
   CALCULATOR CARD
═══════════════════════════════════════════════════════ */
.calc-card {
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); border: 1px solid var(--border);
  overflow: hidden; animation: slideUp .3s var(--ease);
}
@keyframes slideUp {
  from { opacity:0; transform: translateY(16px); }
  to   { opacity:1; transform: translateY(0); }
}
.calc-card-head {
  display: flex; align-items: center; gap: 16px;
  padding: 24px 32px; border-bottom: 1px solid var(--cream-deep);
  background: linear-gradient(100deg, var(--cream) 0%, var(--white) 100%);
}
.calc-card-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; flex-shrink: 0; }
.icon-brok    { background: #fff3e0; }
.icon-barf    { background: #fce4e4; }
.icon-cooked  { background: #e4f5e4; }
.icon-catdry  { background: #e3f0ff; }
.icon-catbarf { background: #fce4e4; }
.calc-card-head-text h2 { font-family: 'Playfair Display', serif; font-size: 22px; color: var(--brown); }
.calc-card-head-text p { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.calc-body { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
@media (max-width: 720px) { .calc-body { grid-template-columns: 1fr; } }

/* FORM SIDE */
.calc-form-side { padding: 32px 36px; border-right: 1px solid var(--cream-deep); }
@media (max-width: 720px) { .calc-form-side { border-right: none; border-bottom: 1px solid var(--cream-deep); } }
.form-section-label {
  font-size: 11px; font-weight: 900; letter-spacing: 1.4px;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 14px; margin-top: 24px;
}
.form-section-label:first-child { margin-top: 0; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.field label span { font-weight: 400; color: var(--text-muted); font-size: 12px; margin-left: 4px; }
.field input[type="number"],
.field select {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--cream-deep);
  border-radius: var(--radius-sm);
  background: var(--cream); font-size: 14px; font-weight: 700;
  color: var(--text); outline: none;
  transition: border-color .18s, box-shadow .18s;
  appearance: none; -webkit-appearance: none;
}
.field input[type="number"]:focus,
.field select:focus {
  border-color: var(--green-dark);
  box-shadow: 0 0 0 3px rgba(125,196,0,.13);
  background: var(--white);
}
.field input[type="number"]::-webkit-inner-spin-button { opacity: .4; }
.select-wrap { position: relative; }
.select-wrap select { padding-right: 36px; cursor: pointer; }
.select-wrap::after {
  content: ''; position: absolute; right: 13px; top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent; border-top-color: var(--text-muted);
  pointer-events: none;
}
.radio-group { display: flex; flex-wrap: wrap; gap: 6px; }
.radio-group input { display: none; }
.radio-group label {
  padding: 8px 14px; border: 1.5px solid var(--cream-deep);
  border-radius: 24px; font-size: 13px; font-weight: 700;
  cursor: pointer; color: var(--text-muted); background: var(--white);
  transition: all .16s var(--ease);
}
.radio-group input:checked + label { background: var(--green); border-color: var(--green); color: var(--brown); box-shadow: 0 2px 8px rgba(125,196,0,.25); }
.radio-group label:hover { border-color: var(--green-dark); color: var(--text); }
.check-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.check-row input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--green-dark); cursor: pointer; }
.check-row label { font-size: 13px; font-weight: 700; cursor: pointer; }
.calc-btn {
  width: 100%; margin-top: 24px; padding: 14px;
  background: var(--brown); color: var(--white);
  border: none; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 900; letter-spacing: .3px;
  transition: background .18s, transform .12s, box-shadow .18s;
  box-shadow: 0 4px 14px rgba(60,30,0,.22);
}
.calc-btn:hover { background: var(--brown-mid); transform: translateY(-1px); box-shadow: 0 7px 20px rgba(60,30,0,.28); }
.calc-btn:active { transform: translateY(0); }

/* RESULT SIDE */
.calc-result-side {
  padding: 32px 36px;
  background: linear-gradient(160deg, #f9f7ef 0%, var(--white) 100%);
  display: flex; flex-direction: column;
}
.result-placeholder {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; color: var(--text-muted);
  gap: 12px; padding: 40px 20px;
}
.result-placeholder svg { opacity: .25; }
.result-placeholder p { font-size: 14px; max-width: 200px; }
.result-output { display: none; flex-direction: column; gap: 0; }
.result-output.visible { display: flex; }
.result-main {
  background: var(--brown); border-radius: var(--radius);
  padding: 28px 28px 22px; color: var(--white);
  text-align: center; margin-bottom: 20px;
}
.result-main .portion-label { font-size: 11px; font-weight: 900; letter-spacing: 1.4px; text-transform: uppercase; opacity: .6; margin-bottom: 8px; }
.result-main .portion-value { font-family: 'Playfair Display', serif; font-size: 52px; font-weight: 700; line-height: 1; color: var(--green); }
.result-main .portion-unit  { font-size: 18px; opacity: .8; margin-top: 4px; }
.result-main .portion-sub   { font-size: 13px; opacity: .55; margin-top: 10px; }
.result-rows { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.result-row {
  display: flex; gap: 20px; align-items: center;
  padding: 12px 16px; background: var(--cream);
  border-radius: var(--radius-sm); border: 1px solid var(--cream-deep);
}
.result-row .rr-label { font-size: 13px; font-weight: 700; color: var(--text-muted); }
.result-row .rr-val   { font-size: 14px; font-weight: 900; color: var(--text); }
.result-row .rr-val.green { color: var(--green-dark); }
.result-note {
  background: rgba(161,230,71,.15); border-left: 3px solid var(--green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 16px; font-size: 12px;
  color: var(--text-muted); line-height: 1.6;
}
.barf-breakdown { margin-bottom: 20px; }
.barf-breakdown h4 { font-size: 11px; font-weight: 900; letter-spacing: 1.2px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px; }
.barf-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 14px; background: var(--cream);
  border-radius: var(--radius-sm); border: 1px solid var(--cream-deep); margin-bottom: 6px;
}
.barf-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.barf-item-label { flex: 1; font-size: 13px; font-weight: 700; }
.barf-item-pct   { font-size: 12px; color: var(--text-muted); margin-right: 8px; }
.barf-item-val   { font-size: 14px; font-weight: 900; }
.calc-disclaimer {
  margin-top: 28px; padding: 18px 24px;
  background: var(--cream); border-radius: var(--radius-sm);
  border: 1px solid var(--cream-deep);
  font-size: 12px; color: var(--text-muted); line-height: 1.65;
}
.calc-disclaimer strong { color: var(--text); }

/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
footer { background: var(--brown); padding: 56px 48px 44px; }
.footer-inner { max-width: 1060px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 32px; }
.footer-col h4 { color: var(--green); font-size: 11px; font-weight: 900; letter-spacing: 1.3px; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,.55); text-decoration: none; font-size: 14px; line-height: 2; transition: color .16s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { max-width: 1060px; margin: 36px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); display: flex; gap: 20px; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { color: rgba(255,255,255,.3); font-size: 12px; }

/* RESPONSIVE */
@media (max-width: 900px) {
  header, nav, footer { padding-left: 24px; padding-right: 24px; }
  .hero { padding: 44px 24px 36px; }
  .calc-section { padding: 40px 20px 70px; }
}
@media (max-width: 600px) {
  .search-wrap { display: none; }
  .calc-form-side, .calc-result-side { padding: 22px 20px; }
  .result-main .portion-value { font-size: 42px; }
}