@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

:root {
  --bg:            #fff7ed;
  --bg-card:       #ffffff;
  --bg-glass:      rgba(255,255,255,0.95);
  --bg-input:      #ffffff;
  --bg-tile:       #ffffff;
  --border:        #e5e7eb;
  --border-hover:  #d1d5db;
  --border-focus:  #2563eb;

  --blue:    #2563eb;
  --purple:  #7c3aed;
  --green:   #16a34a;
  --orange:  #ea580c;
  --red:     #dc2626;
  --pink:    #db2777;
  --teal:    #0d9488;
  --yellow:  #ca8a04;

  --finance-clr:  #2563eb;
  --health-clr:   #16a34a;
  --build-clr:    #d97706;
  --edu-clr:      #7c3aed;
  --tools-clr:    #db2777;

  --text-1: #0f172a;
  --text-2: #334155;
  --text-3: #64748b;

  --cat-under-bg:  rgba( 37, 99,235,.10); --cat-under-fg:  #1d4ed8;
  --cat-normal-bg: rgba( 22,163, 74,.10); --cat-normal-fg: #15803d;
  --cat-over-bg:   rgba(217,119, 6,.12);  --cat-over-fg:   #b45309;
  --cat-ob1-bg:    rgba(220, 38, 38,.10); --cat-ob1-fg:    #b91c1c;
  --cat-ob2-bg:    rgba(124, 58,237,.10); --cat-ob2-fg:    #6d28d9;

  --r-xl:   22px;
  --r-lg:   16px;
  --r-md:   11px;
  --r-sm:    8px;
  --r-pill: 50px;

  --shadow-card: 0 4px 20px rgba(0,0,0,0.03), 0 30px 70px rgba(37,99,235,0.08);
  --shadow-btn:  0 8px 24px rgba(37,99,235,0.18);

  --ease: cubic-bezier(.4,0,.2,1);
  --t:    .26s;

  --nav-bg:  rgba(255,255,255,0.97);
  --topnav-h-mobile: 56px;
  --bg-pref:       #f8fafc;
  --bg-switcher:   #f8fafc;
  --bg-pill:       #ffffff;
  --bg-subtle:     #f8fafc;
  --bg-row-hover:  rgba(59,130,246,0.04);
  --bg-inner:      #f8fafc;

  --pattern-color: rgba(37,99,235,0.12);
  --blob-a: radial-gradient(circle, rgba(37,99,235,0.22), transparent);
  --blob-b: radial-gradient(circle, rgba(124,58,237,0.20), transparent);
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #fff7ed 0%, #ffffff 100%);
  color:var(--text-1);
  min-height:100vh;
  display: flex;
  flex-direction: column;
  overflow-x:hidden;
  position:relative;
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6, .nav-brand, .hero-title, .section-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
}

body::before,body::after { content:none; }

.topnav {
  position: sticky; top: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  height: 50px;
  background: #ffffff;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  border-bottom: none;
  transition: all var(--t) var(--ease);
}
.nav-brand {
  display: flex; align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}
.nav-logo {
  height: 24px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex; gap: 24px; align-items: center; flex-wrap: nowrap;
  flex: 1; justify-content: center;
}
.nav-search {
  flex: 0 0 280px;
  margin-left: 20px;
}
.mobile-search { display: none; }
.search-inner {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon-nav {
  position: absolute;
  left: 10px;
  width: 14px;
  height: 14px;
  color: var(--text-3);
  pointer-events: none;
}
.nav-search input {
  width: 100%;
  padding: 7px 12px 7px 34px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--bg-switcher);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-1);
  outline: none;
  transition: all 0.3s var(--ease);
}
.nav-search input:focus {
  border-color: var(--blue);
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.04);
}
.nav-link {
  color: var(--text-2); text-decoration: none;
  font-size: 0.9rem; font-weight: 500;
  text-transform: none; letter-spacing: normal;
  transition: all 0.2s; opacity: 0.9;
  padding: 6px 2px; border-bottom: none; white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  opacity: 1; color: var(--blue);
}

.nav-toggle {
  display: none; width: 36px; height: 36px;
  border: none; background: transparent;
  cursor: pointer; z-index: 1001;
  position: relative; padding: 0;
  border-radius: 6px;
  transition: background 0.2s;
}
.nav-toggle:hover { background: var(--bg-row-hover); }
.hamburger {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 18px; height: 2px; background: var(--text-1);
  transition: all 0.3s var(--ease);
}
.hamburger::before, .hamburger::after {
  content: ''; position: absolute; left: 0;
  width: 18px; height: 2px; background: var(--text-1);
  transition: all 0.3s var(--ease);
}
.hamburger::before { transform: translateY(-5px); }
.hamburger::after { transform: translateY(5px); }

.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { transform: rotate(-45deg); }

@media (max-width: 900px) {
  .topnav { height: 50px; padding: 0 16px; justify-content: space-between; }
  .nav-toggle { display: block; order: 3; }
  .nav-brand { order: 1; }
  .nav-brand .nav-logo { height: 20px; }
  .nav-links {
    position: fixed; top: 50px; right: -100%;
    width: 280px; height: calc(100vh - 50px);
    background: #ffffff;
    flex-direction: column; align-items: stretch;
    padding: 24px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    border-left: 1px solid var(--border);
    justify-content: flex-start;
    margin: 0;
  }
  .nav-links.active { right: 0; }
  .nav-search { order: 2; flex: 1; margin: 0 12px; }
  .nav-search input { padding: 7px 12px 7px 34px; font-size: 0.85rem; }
  
  @media (max-width: 500px) {
    .nav-search { display: none; }
  }

  .mobile-search {
    display: block;
    margin-bottom: 24px;
  }
  .mobile-search input {
    width: 100%;
    padding: 10px 12px 10px 38px;
    border-radius: 8px;
    border: 1.5px solid var(--border);
    background: var(--bg-switcher);
    font-size: 0.9rem;
    outline: none;
  }
  .nav-link { 
    font-size: 0.92rem; 
    padding: 14px 0; 
    width: 100%; 
    border-bottom: 1px solid var(--border); 
    text-align: left; 
    opacity: 1;
    color: var(--text-1);
  }
  .nav-link:last-child { border-bottom: none; }
}

.nav-overlay {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.4);
    opacity: 0; pointer-events: none;
    transition: opacity 0.4s; z-index: 999;
    backdrop-filter: blur(4px);
  }
  .nav-overlay.active { opacity: 1; pointer-events: auto; }

.back-link {
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);font-size:.88rem;font-weight:600;
  text-decoration:none;
  transition:color var(--t) var(--ease);
}
.back-link:hover{color:var(--blue);}

.content-section {
  line-height: 1.8;
  color: var(--text-2);
  padding: 40px;
}
.content-section h2 {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 24px;
  color: var(--text-1);
  letter-spacing: -0.02em;
}
.content-section h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 40px 0 16px;
  color: var(--text-1);
  letter-spacing: -0.01em;
}
.content-section p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  opacity: 0.9;
}
.content-section ul {
  margin: 20px 0 30px 0;
  list-style: none;
}
.content-section li {
  margin-bottom: 12px;
  padding-left: 28px;
  position: relative;
  font-weight: 500;
}
.content-section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
}

body, .card, .topnav, .tile, .breakdown li, .search-wrap input,
.input-wrapper input, .input-wrapper select, .input-wrapper textarea,
.unit-pill, .tab-switcher, .pref-row, .bmi-readout, .tip-box, .info-box,
.calc-card, .progress-bar, .btn-secondary {
  transition:
    background .35s var(--ease),
    background-color .35s var(--ease),
    border-color .35s var(--ease),
    color .35s var(--ease),
    box-shadow .35s var(--ease);
}

.container {
  flex: 1;
  position:relative;z-index:1;
  width:100%;max-width:800px;
  margin:0 auto;
  padding:40px 20px 100px;
}
.container.wide{max-width:1120px;}

@media (max-width: 768px) {
  .container {
    padding: 20px 16px 60px;
  }
}

.main-content {
  max-width: 1400px; margin: 0 auto;
  padding: 40px 24px;
  display: grid; grid-template-columns: 320px 1fr;
  gap: 50px;
}

@media (max-width: 1200px) {
  .main-content {
    grid-template-columns: 280px 1fr;
    gap: 30px;
  }
}

@media (max-width: 992px) {
  .main-content {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 30px 20px;
  }
}

.header, .layout-header {
  text-align: center;
  margin-bottom: 40px;
  margin-top: 10px;
  position: relative;
}

.layout-header {
  padding: 40px 20px 30px;
  margin-bottom: 20px;
}

.layout-header::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140%;
  height: 180%;
  background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

.layout-header::after {
  display: none;
}

.header-badge, .hero-badge {
  display: none;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px var(--blue);
  animation: pulse 2.2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.55); }
}

h1, .calc-title {
  font-size: clamp(1.8rem, 6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.2;
  background: linear-gradient(135deg, #0f172a 15%, #2563eb 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
  padding: 5px 0;
  letter-spacing: -0.03em;
  filter: drop-shadow(0 4px 12px rgba(37,99,235,0.05));
}
@media (max-width: 640px) {
  h1, .calc-title { font-size: 1.75rem; line-height: 1.3; }
  .subtitle, .calc-subtitle { font-size: 0.95rem; line-height: 1.6; }
}

.subtitle, .calc-subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.7;
  font-weight: 500;
  opacity: 0.9;
}

.card {
  background:#ffffff;
  border: 1px solid rgba(0,0,0,0.03);
  border-radius:var(--r-xl);
  padding:28px;
  margin-bottom:22px;
  box-shadow:var(--shadow-card);
  transition: all var(--t) var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.02), 0 30px 60px rgba(37,99,235,0.08);
  border-color: rgba(37,99,235,0.15);
}

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

@media (max-width: 1100px) {
  .form-grid.cols-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .form-grid, .form-grid.cols-3 {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

.full{grid-column:1/-1;}

.form-group{display:flex;flex-direction:column;gap:9px;margin-bottom:24px;}

label {
  display:flex;align-items:center;gap:10px;
  font-size:.77rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--text-2);margin-bottom:12px;
}
.lbl-icon {
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--blue);flex-shrink:0;
    width:20px;height:20px;
  }
  .lbl-icon svg, .lbl-icon i {
    width:16px;height:16px;stroke-width:2.5px;
  }

.input-stack{display:flex;flex-direction:column;gap:10px;}

.input-wrapper{position:relative;display:flex;align-items:center;}

.input-wrapper input[type=number],
.input-wrapper input[type=text],
.input-wrapper input[type=email],
.input-wrapper input[type=tel],
.input-wrapper input[type=url],
.input-wrapper input[type=password],
.input-wrapper input[type=date],
.input-wrapper input[type=month],
.input-wrapper input[type=datetime-local],
.input-wrapper select,
.input-wrapper textarea {
  width:100%;
  background:var(--bg-input);
  border:1.5px solid var(--border);
  border-radius:var(--r-md);
  color:var(--text-1);
  font-family: 'Inter', sans-serif;
  font-size:1rem;font-weight:500;
  padding:11px 16px;
  padding-right: 64px;
  outline:none;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease);
  appearance:none;-moz-appearance:textfield;
}

.input-wrapper input[type=date],
.input-wrapper input[type=month],
.input-wrapper input[type=datetime-local] {
  cursor: pointer;
  position: relative;
}
.input-wrapper input[type=date]::-webkit-calendar-picker-indicator,
.input-wrapper input[type=month]::-webkit-calendar-picker-indicator,
.input-wrapper input[type=datetime-local]::-webkit-calendar-picker-indicator {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  filter: none;
  opacity: 0.6;
  transition: opacity 0.2s;
  z-index: 2;
}
.input-wrapper input[type=date]:hover::-webkit-calendar-picker-indicator,
.input-wrapper input[type=month]:hover::-webkit-calendar-picker-indicator,
.input-wrapper input[type=datetime-local]:hover::-webkit-calendar-picker-indicator {
  opacity: 1;
}

.input-wrapper textarea{padding:11px 16px;resize:vertical;min-height:80px;}
.input-wrapper input::-webkit-outer-spin-button,
.input-wrapper input::-webkit-inner-spin-button{-webkit-appearance:none;}
.input-wrapper input:focus,
.input-wrapper select:focus,
.input-wrapper textarea:focus {
  border-color:var(--border-focus);
  box-shadow:0 0 0 3px rgba(37,99,235,.14);
}
.input-suffix {
  position:absolute;right:14px;
  font-size:.78rem;font-weight:800;
  color:var(--blue);pointer-events:none;letter-spacing:.05em;
}
.select-arrow{position:absolute;right:16px;color:var(--text-2);pointer-events:none;font-size:.82rem;}

.unit-pills{display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.unit-pill {
  flex:1 1 auto;min-width:fit-content;height:36px;padding:0 12px;
  background: #ffffff;
  border:1.5px solid var(--border);
  border-radius:var(--r-md);
  color:var(--text-2);
  font-family: 'Inter', sans-serif;
  font-size:.78rem;font-weight:700;letter-spacing:.02em;
  cursor:pointer;white-space:nowrap;text-align:center;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--t) var(--ease);
  position:relative;overflow:hidden;
}
.unit-pill::after{
  content:'';position:absolute;inset:0;
  background: rgba(255, 255, 255, 0.2);
  opacity:0;transition:opacity var(--t) var(--ease);
}
.unit-pill:hover::after{opacity:1;}
.unit-pill:hover:not(.active){
  border-color:var(--blue);
  color:var(--blue);
  background:#ffffff;
  transform:translateY(-1px);
}
.unit-pill.active{
  background:var(--blue);
  border-color:transparent;color:#fff;
  box-shadow:0 4px 18px rgba(37,99,235,.35);
}
.unit-pill:active{transform:scale(.96);}

.pref-row {
  display:flex;align-items:center;gap:16px;
  background:var(--bg-pref);
  border:1px solid var(--border);border-radius:var(--r-lg);
  padding:10px 16px;margin-bottom:20px;
}
@media (max-width: 640px) {
  .pref-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
  }
  .pref-row .unit-pills {
    width: 100%;
    justify-content: flex-start;
  }
  .pref-row .unit-pill {
    flex: 1 1 auto;
  }
}
.pref-label{
  display:flex;align-items:center;gap:7px;
  font-size:.74rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--text-2);white-space:nowrap;flex-shrink:0;
}
.pref-row .unit-pills{flex:1;justify-content:flex-end;}
.pref-row .unit-pill{flex:0 0 auto;padding:0 16px;min-width:64px;}

.tab-switcher, .mode-tabs {
  display:flex;gap:6px;
  background:var(--bg-switcher);border:1px solid var(--border);
  border-radius:var(--r-pill);padding:4px;margin-bottom:22px;
}
.mode-tabs { border-radius: var(--r-lg); }

.tab-btn, .mode-tab {
  flex:1;padding:8px 14px;border:none;border-radius:var(--r-pill);
  background:transparent;color:var(--text-2);
  font-family: 'Inter', sans-serif;font-size:.82rem;font-weight:600;
  cursor:pointer;transition:all var(--t) var(--ease);
}
.mode-tab { border-radius: calc(var(--r-lg) - 2px); }

@media (max-width: 480px) {
  .tab-switcher, .mode-tabs { flex-wrap: wrap; border-radius: 12px; }
  .tab-btn, .mode-tab { font-size: 0.75rem; padding: 8px 6px; }
}

.tab-btn.active, .mode-tab.active{
  background:var(--blue);
  color:#fff;box-shadow:0 4px 15px rgba(37,99,235,.3);
}

.slider-labels{
  display:flex;justify-content:space-between;
  font-size:.68rem;color:var(--text-3);font-weight:600;margin-bottom:6px;
}
.slider-wrap{position:relative; padding: 12px 0 24px;}
.rainbow-track{
  position:relative;height:8px;border-radius:var(--r-pill);
  background:linear-gradient(90deg,#63b3ed 0% 21%,#68d391 21% 38%,#f6ad55 38% 58%,#fc8181 58% 78%,#9f7aea 78% 100%);
  box-shadow:0 1px 4px rgba(0,0,0,0.05);overflow:visible;
}
.glow-thumb{
  position:absolute;top:50%;transform:translate(-50%,-50%);
  width:22px;height:22px;border-radius:50%;
  background:#fff;box-shadow:0 0 0 4px var(--blue), 0 4px 12px rgba(0,0,0,0.1);
  pointer-events:none;transition:left .12s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 3;
}
.slider-wrap input[type=range]{
  width:100%;-webkit-appearance:none;appearance:none;background:transparent;
  cursor:pointer;position:absolute;top: 50%; transform: translateY(-50%);
  z-index:4;margin:0;padding:0;
}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;background:transparent;cursor:pointer;
}
input[type=range]::-webkit-slider-runnable-track {
  width: 100%; height: 6px; background: var(--bg-pill); border-radius: 10px; border: 1px solid var(--border);
}
input[type=range]::-moz-range-track {
  width: 100%; height: 6px; background: var(--bg-pill); border-radius: 10px; border: 1px solid var(--border);
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; height: 20px; width: 20px; border-radius: 50%; background: var(--blue);
  box-shadow: 0 2px 6px rgba(37,99,235,0.3); cursor: pointer; margin-top: -8px; border: 2px solid #fff;
  transition: transform 0.2s;
}
input[type=range]::-moz-range-thumb {
  height: 18px; width: 18px; border-radius: 50%; background: var(--blue);
  box-shadow: 0 2px 6px rgba(37,99,235,0.3); cursor: pointer; border: 2px solid #fff;
}
input[type=range]:active::-webkit-slider-thumb { transform: scale(1.2); }

.slider-wrap input[type=range]::-webkit-slider-thumb {
  background: transparent; box-shadow: none; border: none; height: 28px; width: 28px; margin-top: 0;
}
.slider-wrap input[type=range]::-moz-range-thumb {
  background: transparent; box-shadow: none; border: none; height: 28px; width: 28px;
}

input[type=range]:focus { outline: none; }

.bmi-readout{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--bg-pref);border:1px solid var(--border);
  border-radius:var(--r-md);padding:10px 16px;margin-top:8px;
}
.readout-cap{font-size:.70rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);margin-bottom:3px;}
.readout-val{
  font-size:1.6rem;font-weight:800;line-height:1;
  color:var(--blue);
}

.badge{
  display:inline-flex;align-items:center;
  padding:5px 16px;border-radius:var(--r-pill);
  font-size:.82rem;font-weight:700;letter-spacing:.02em;
  transition:background var(--t),color var(--t);
}
.cat-underweight{background:var(--cat-under-bg);color:var(--cat-under-fg);}
.cat-normal     {background:var(--cat-normal-bg);color:var(--cat-normal-fg);}
.cat-overweight {background:var(--cat-over-bg);color:var(--cat-over-fg);}
.cat-obese      {background:var(--cat-ob1-bg);color:var(--cat-ob1-fg);}
.cat-obese2     {background:var(--cat-ob2-bg);color:var(--cat-ob2-fg);}

.btn-calc, .btn-calculate {
  width:100%;padding:14px;margin-top:22px;
  border:none;border-radius:var(--r-lg);
  background:var(--blue);
  color:#fff;font-family: 'Inter', sans-serif;
  font-size:1rem;font-weight:700;letter-spacing:.04em;
  cursor:pointer;position:relative;overflow:hidden;
  transition:all var(--t) var(--ease);
  box-shadow:var(--shadow-btn);
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn-calc::before, .btn-calculate::before{
  content:'';position:absolute;inset:0;
  background:rgba(255,255,255,0.2);
  opacity:0;transition:opacity var(--t) var(--ease);
}
.btn-calc:hover, .btn-calculate:hover{transform:translateY(-3px);box-shadow:0 16px 44px rgba(37,99,235,.3);}
.btn-calc:hover::before, .btn-calculate:hover::before{opacity:1;}
.btn-calc:active, .btn-calculate:active{transform:translateY(0);}

.btn-secondary, .btn-reset-sm {
  width:100%;padding:14px;
  border:1.5px solid var(--border);border-radius:var(--r-lg);
  background:#ffffff;
  color:var(--text-2);font-family: 'Inter', sans-serif;
  font-size:.95rem;font-weight:700;cursor:pointer;
  transition:all var(--t) var(--ease);
  display:flex;align-items:center;justify-content:center;gap:8px;
}
.btn-secondary:hover, .btn-reset-sm:hover{border-color:var(--red);color:var(--red);background:rgba(220,38,38,0.04);}
.btn-secondary:active, .btn-reset-sm:active {transform:translateY(0);}

.btn-row {
  display: flex; gap: 10px; margin-top: 20px;
}
@media (max-width: 480px) {
  .btn-row { flex-direction: column; }
}

.proj-table-wrap, .table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  margin-top: 14px;
}
.proj-table, .bmi-range-table, .data-table {
  width: 100%;
  min-width: 500px;
  border-collapse: collapse;
}
@media (max-width: 600px) {
  .proj-table, .bmi-range-table, .data-table { min-width: 450px; }
}
.results-card{display:none;}

.result-hero{text-align:center;margin-bottom:28px;}
.result-hero-lbl{
  font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-3);margin-bottom:8px;
}
.result-big{
  font-size:3.6rem;font-weight:900;line-height:1;
  background: linear-gradient(135deg, var(--text-1) 0%, var(--blue) 100%);
  -webkit-background-clip: text;-webkit-text-fill-color: transparent;
  margin-bottom:4px;
}
@media (max-width: 640px) {
  .result-big { font-size: 2.8rem; }
}

.result-unit-lbl{font-size:.95rem;font-weight:700;color:var(--text-2);opacity:.8;}

.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:28px;}
@media (max-width: 480px) {
  .tiles { grid-template-columns: 1fr 1fr; gap: 10px; }
}
.tile{
  background:var(--bg-tile);border:1.5px solid var(--border);border-radius:var(--r-lg);
  padding:18px;text-align:center;
}
@media (max-width: 480px) {
  .tile { padding: 14px 10px; }
  .tile-val { font-size: 1.15rem; }
}
.tile-lbl{font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);margin-bottom:6px;}
.tile-val{font-size:1.3rem;font-weight:800;color:var(--text-1);line-height:1.2;}
.tile-sub{font-size:.72rem;font-weight:600;color:var(--text-3);margin-top:4px;}

.breakdown{list-style:none;padding:0;margin:18px 0;}
.breakdown li{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 0;border-bottom:1.5px solid var(--border);
  font-size:.95rem;
}
.breakdown li:last-child{border-bottom:none;}
.breakdown .lbl{color:var(--text-2);font-weight:500;}
.breakdown .val{color:var(--text-1);font-weight:700;}

.spectrum-wrap{margin:4px 0 20px;}
.spectrum-title{font-size:.74rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);margin-bottom:14px;}
.spectrum-bar{
  position:relative;height:12px;border-radius:var(--r-pill);
  background:linear-gradient(90deg,#63b3ed 0% 23%,#68d391 23% 42%,#f6ad55 42% 60%,#fc8181 60% 80%,#9f7aea 80% 100%);
  box-shadow:0 2px 12px rgba(0,0,0,0.1);overflow:visible;margin-bottom:6px;
}
.spectrum-marker{
  position:absolute;top:50%;transform:translate(-50%,-50%);
  width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid #fff;
  box-shadow:0 0 0 4px rgba(0,0,0,.05),0 4px 18px rgba(0,0,0,0.1);
  transition:left .65s var(--ease);
}
.spectrum-ticks{display:flex;justify-content:space-between;padding:0 2px;}
.spectrum-ticks span{font-size:.64rem;color:var(--text-3);font-weight:600;}
.cat-chips{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-top:8px;}
.cat-chip{
  text-align:center;padding:9px 5px;border-radius:var(--r-sm);
  font-size:.66rem;font-weight:700;opacity:.35;
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
}
.cat-chip.active{opacity:1;transform:scale(1.04);}
.cat-chip .cat-range{display:block;font-size:.58rem;font-weight:500;margin-top:2px;}

.tip-box, .info-box{
  display:flex;gap:14px;padding:18px;border-radius:var(--r-lg);margin-top:22px;font-size:.92rem;line-height:1.6;
}
.tip-box{background:rgba(37,99,235,0.05);border:1px solid rgba(37,99,235,0.1);color:var(--text-2);}
.info-box{background:rgba(124,58,237,0.05);border:1px solid rgba(124,58,237,0.1);color:var(--text-2);}
.tip-icon{color:var(--blue);font-size:1.2rem;flex-shrink:0;}
.info-icon{color:var(--purple);font-size:1.2rem;flex-shrink:0;}
.info-box strong{color:var(--text-1);}

.progress-wrap{margin:6px 0 2px;}
.progress-bar{height:8px;border-radius:var(--r-pill);background:rgba(0,0,0,.08);overflow:hidden;}
.progress-fill{height:100%;border-radius:var(--r-pill);background:var(--blue);transition:width .6s var(--ease);}

.sep{height:1.5px;background:var(--border);margin:28px 0;}

  .content-section {
    line-height: 1.7;
    color: var(--text-2);
    margin-top: -8px;
    padding: 28px;
  }
  .content-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-1);
    background: linear-gradient(135deg, var(--text-1), var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .content-section h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 45px;
    margin-bottom: 20px;
    color: var(--text-1);
  }
  .content-section h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 25px;
    margin-bottom: 10px;
    color: var(--text-1);
  }
  .content-section p {
    margin-bottom: 20px;
    font-size: 1.05rem;
  }
  .content-section ul, .content-section ol {
    margin-bottom: 20px;
    padding-left: 20px;
  }
  .content-section li {
    margin-bottom: 8px;
  }
  .content-section strong {
    color: var(--text-1);
    font-weight: 700;
  }
  @media (max-width: 600px) {
    .content-section {
      padding: 24px;
    }
    .content-section h2 { font-size: 1.5rem; }
    .content-section h3 { font-size: 1.25rem; }
  }

.site-footer {
  width: 100%;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
  margin-top: auto;
  position: relative;
  z-index: 10;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 24px;
}

.footer-logo-img {
  height: 44px;
  width: auto;
  display: block;
}

.footer-brand p {
  color: var(--text-3);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 320px;
  font-weight: 500;
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-1);
  margin-bottom: 28px;
  position: relative;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 14px;
}

.footer-links a {
  color: var(--text-3);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s;
}

.footer-links a i {
  width: 16px;
  height: 16px;
  color: var(--blue);
  opacity: 0.8;
}

.footer-links a:hover {
  color: var(--blue);
  transform: translateX(4px);
}

.footer-bottom {
  max-width: 1200px;
  margin: 80px auto 0;
  padding: 40px 24px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--text-3);
  font-size: 0.88rem;
  font-weight: 600;
}

.footer-social {
  display: flex;
  gap: 16px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-switcher);
  border: 1px solid var(--border);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  text-decoration: none;
}

.social-link i {
  width: 18px;
  height: 18px;
}

.social-link:hover {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}

@media (max-width: 992px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-brand {
    grid-column: 1 / -1;
    margin-bottom: 20px;
  }
}

@media (max-width: 640px) {
  .site-footer {
    padding: 60px 0 40px;
  }
  .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 24px;
    text-align: center;
    margin-top: 60px;
  }
}

/* ── SEO CONTENT STYLES ── */
.seo-content {
  max-width: 900px;
  margin: 60px auto 100px;
  padding: 0 24px;
  line-height: 1.8;
  color: var(--text-2);
}
.seo-content h2 {
  font-size: 2rem;
  font-weight: 900;
  margin: 50px 0 24px;
  color: var(--text-1);
  letter-spacing: -0.02em;
}
.seo-content h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 40px 0 16px;
  color: var(--text-1);
}
.seo-content p {
  margin-bottom: 22px;
  font-size: 1.05rem;
  opacity: 0.9;
}
.seo-content ul {
  margin: 20px 0 30px 20px;
  list-style: disc;
}
.seo-content li {
  margin-bottom: 12px;
  font-weight: 500;
}
.seo-content strong {
  color: var(--text-1);
}

.seo-toc-list {
  background: var(--bg-switcher);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  margin-bottom: 40px;
}
.seo-toc-list strong {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 16px;
}
.seo-toc-list ul {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 30px;
}
.seo-toc-list a {
  color: var(--blue);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: opacity 0.2s;
}
.seo-toc-list a:hover {
  opacity: 0.7;
}

@media (max-width: 640px) {
  .seo-toc-list ul { grid-template-columns: 1fr; }
  .seo-content h2 { font-size: 1.6rem; }
}