/* SmartCalc Hub — Premium redesign */

:root{
  /* Color system */
  --bg: #f7f7f5;
  --bg-elev: #ffffff;
  --bg-alt: #f1f1ee;
  --ink: #0a0a0f;
  --ink-2: #1c1c22;
  --muted: #6b6b75;
  --muted-2: #9a9aa3;
  --line: rgba(10,10,15,.08);
  --line-strong: rgba(10,10,15,.14);

  --accent: #5b5bf6;        /* indigo */
  --accent-2: #7c5cff;
  --accent-3: #22c1c3;      /* teal accent for gradients */
  --accent-ink: #ffffff;
  --accent-soft: #eeeefe;

  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;

  /* Radii */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 28px;

  /* Shadows — layered, premium */
  --sh-1: 0 1px 0 rgba(10,10,15,.04), 0 1px 2px rgba(10,10,15,.04);
  --sh-2: 0 1px 0 rgba(10,10,15,.04), 0 8px 24px -10px rgba(10,10,15,.10), 0 2px 6px -2px rgba(10,10,15,.06);
  --sh-3: 0 1px 0 rgba(10,10,15,.05), 0 24px 60px -24px rgba(10,10,15,.22), 0 8px 20px -10px rgba(10,10,15,.10);
  --sh-glow: 0 20px 60px -20px rgba(91,91,246,.45);
  --sh-inset: inset 0 1px 0 rgba(255,255,255,.6);

  /* Type */
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Instrument Serif', ui-serif, Georgia, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--ink);
  background:var(--bg);
  font-feature-settings:'ss01','cv11';
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.55;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
button{font-family:inherit}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:none}

/* Type scale */
h1,h2,h3,h4,h5{margin:0; font-weight:600; letter-spacing:-0.02em; color:var(--ink)}
h1{font-size:clamp(2.4rem, 5.4vw, 4.6rem); line-height:1.04; font-weight:600; letter-spacing:-0.035em}
h1 em{font-family:var(--font-serif); font-style:italic; font-weight:400; letter-spacing:-0.02em}
h2{font-size:clamp(1.8rem, 3vw, 2.6rem); line-height:1.1; letter-spacing:-0.03em}
h2 em{font-family:var(--font-serif); font-style:italic; font-weight:400}
h3{font-size:1.2rem; letter-spacing:-0.015em}
h4{font-size:1rem; letter-spacing:-0.01em}
p{margin:0 0 1rem; color:var(--muted)}
.muted{color:var(--muted)}

.container{max-width:1200px; margin:0 auto; padding:0 24px}
.container.narrow{max-width:760px}

/* Ambient background */
.ambient{position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none}
.ambient-blob{position:absolute; border-radius:50%; filter:blur(80px); opacity:.5}
.ambient-blob.a{width:520px; height:520px; left:-120px; top:-160px; background:radial-gradient(circle, #c7c4ff 0%, transparent 65%)}
.ambient-blob.b{width:640px; height:640px; right:-180px; top:120px; background:radial-gradient(circle, #b6f3e9 0%, transparent 65%)}
.ambient-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(10,10,15,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,10,15,.035) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}

/* Header */
.site-header{
  position:sticky; top:12px; z-index:60;
  margin:12px auto 0;
  max-width:1240px;
  padding:0 12px;
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:60px; padding:0 18px;
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-2);
}
.logo{display:inline-flex; align-items:center; gap:10px; font-weight:600; color:var(--ink)}
.logo-mark{
  width:30px; height:30px; border-radius:9px;
  display:grid; place-items:center;
  background:linear-gradient(135deg, var(--ink) 0%, #2b2b34 100%);
  color:#fff;
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.08);
}
.logo-mark svg{width:16px; height:16px}
.logo-text{font-size:1rem; letter-spacing:-0.02em}
.logo-dot{color:var(--accent)}
.logo-sub{color:var(--muted); font-weight:500}

.main-nav{display:flex; align-items:center; gap:8px}
.nav-list{
  display:flex; list-style:none; padding:0; margin:0; gap:2px; align-items:center;
}
.nav-list a{
  display:inline-flex; padding:8px 14px; border-radius:999px;
  font-size:.92rem; color:var(--ink-2); font-weight:500;
  transition:background .2s, color .2s;
}
.nav-list a:hover{background:var(--bg-alt); color:var(--ink)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none; background:transparent; border:0; padding:8px; cursor:pointer}
.nav-toggle span{display:block; width:20px; height:1.5px; background:var(--ink); margin:4px 0; border-radius:2px; transition:transform .2s}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 20px; border-radius:999px;
  font-weight:500; font-size:.95rem; letter-spacing:-0.005em;
  cursor:pointer; border:1px solid transparent;
  transition:transform .08s ease, box-shadow .2s ease, background .2s, color .2s, border-color .2s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:8px 14px; font-size:.88rem}
.btn-block{width:100%}
.btn-primary{
  background:var(--ink); color:#fff;
  box-shadow:var(--sh-2), inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-primary:hover{background:#000; box-shadow:var(--sh-3), inset 0 1px 0 rgba(255,255,255,.1)}
.btn-ghost{
  background:rgba(255,255,255,.6); color:var(--ink);
  border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:#fff; border-color:var(--line-strong)}

.icon-btn{
  width:36px; height:36px; border-radius:10px;
  display:grid; place-items:center;
  background:var(--bg-alt); color:var(--muted);
  border:1px solid var(--line); cursor:pointer;
  transition:all .15s;
}
.icon-btn:hover{background:#fff; color:var(--danger); border-color:var(--line-strong)}
.icon-btn svg{width:16px; height:16px}

/* Hero */
.hero{padding:80px 0 40px; text-align:center; position:relative}
.hero-inner{max-width:880px; margin:0 auto}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  padding:6px 14px 6px 10px; border-radius:999px;
  background:rgba(255,255,255,.7);
  border:1px solid var(--line);
  font-size:.84rem; color:var(--ink-2); font-weight:500;
  box-shadow:var(--sh-1);
  backdrop-filter:blur(10px);
  margin-bottom:32px;
  animation:floatIn .8s ease both;
}
.eyebrow:hover{background:#fff}
.eyebrow .dot{width:6px; height:6px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 4px rgba(91,91,246,.18); animation:pulseDot 2.4s infinite}
@keyframes pulseDot{0%,100%{box-shadow:0 0 0 4px rgba(91,91,246,.18)} 50%{box-shadow:0 0 0 7px rgba(91,91,246,.08)}}

.hero h1{margin:0 auto; max-width:14ch; animation:floatIn .9s .05s ease both}
.hero-sub{
  font-size:clamp(1.05rem, 1.3vw, 1.2rem);
  color:var(--muted); margin:22px auto 32px; max-width:580px; line-height:1.5;
  animation:floatIn .9s .12s ease both;
}
.hero-cta{display:flex; gap:10px; justify-content:center; flex-wrap:wrap; animation:floatIn .9s .18s ease both}
.hero-trust{
  list-style:none; padding:0; margin:34px 0 0;
  display:flex; gap:24px; justify-content:center; flex-wrap:wrap;
  color:var(--muted); font-size:.88rem;
  animation:floatIn .9s .26s ease both;
}
.hero-trust li{display:inline-flex; align-items:center; gap:6px}
.hero-trust svg{width:14px; height:14px; color:var(--accent)}

/* Hero preview window */
.hero-preview{
  margin:64px auto 0; max-width:880px;
  animation:rise 1s .35s ease both;
}
.hp-window{
  border-radius:var(--r-lg);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
  overflow:hidden;
  text-align:left;
}
.hp-bar{
  display:flex; align-items:center; gap:8px;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, #fafafa, #f5f5f3);
}
.hp-bar > span{width:11px; height:11px; border-radius:50%; background:#e5e5e7}
.hp-bar > span:nth-child(1){background:#ff5f57}
.hp-bar > span:nth-child(2){background:#febc2e}
.hp-bar > span:nth-child(3){background:#28c840}
.hp-url{
  margin-left:auto; margin-right:auto;
  font-family:var(--font-mono); font-size:.78rem; color:var(--muted);
  background:#fff; padding:4px 14px; border-radius:999px; border:1px solid var(--line);
}
.hp-body{display:grid; grid-template-columns:160px 1fr; min-height:260px}
.hp-side{padding:18px; border-right:1px solid var(--line); display:flex; flex-direction:column; gap:6px; background:#fbfbf9}
.hp-pill{padding:8px 12px; border-radius:10px; font-size:.85rem; color:var(--muted); font-weight:500}
.hp-pill.active{background:var(--ink); color:#fff}
.hp-main{padding:28px 32px; display:flex; flex-direction:column; gap:10px}
.hp-label{font-size:.78rem; color:var(--muted); text-transform:uppercase; letter-spacing:.08em; font-weight:600}
.hp-value{font-size:4rem; font-weight:600; letter-spacing:-0.04em; line-height:1; font-family:var(--font-sans)}
.hp-tag{display:inline-block; align-self:flex-start; padding:4px 12px; border-radius:999px; background:#e8f7ee; color:#15803d; font-size:.78rem; font-weight:600}
.hp-meter{margin-top:18px; height:10px; border-radius:999px; background:linear-gradient(90deg, #fde68a 0%, #86efac 30%, #86efac 50%, #fde68a 70%, #fca5a5 100%); position:relative; overflow:visible}
.hp-fill{position:absolute; left:38%; top:-4px; width:18px; height:18px; border-radius:50%; background:#fff; border:3px solid var(--ink); box-shadow:var(--sh-2)}
.hp-range{display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:.72rem; color:var(--muted); margin-top:6px}

@keyframes floatIn{from{opacity:0; transform:translateY(14px)} to{opacity:1; transform:none}}
@keyframes rise{from{opacity:0; transform:translateY(40px) scale(.98)} to{opacity:1; transform:none}}

/* Trust strip */
.strip{padding:50px 0 20px; text-align:center}
.strip-label{font-size:.78rem; text-transform:uppercase; letter-spacing:.16em; color:var(--muted-2); font-weight:600; margin-bottom:18px}
.strip-logos{
  display:flex; flex-wrap:wrap; justify-content:center; align-items:center;
  gap:36px 48px;
  font-family:var(--font-serif); font-style:italic; font-size:1.4rem; color:var(--muted);
  opacity:.78;
}

/* Ads */
.ad-wrap{margin:32px auto}
.ad-container{
  position:relative;
  border:1px dashed var(--line-strong);
  background:
    repeating-linear-gradient(45deg, rgba(10,10,15,.015) 0 10px, transparent 10px 20px),
    #fafaf8;
  color:var(--muted);
  border-radius:var(--r-md);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:28px 18px;
  font-size:.88rem; text-align:center;
  min-height:90px;
}
.ad-container.subtle{margin:8px 0}
.ad-container.tall{min-height:480px; gap:10px}
.ad-tag{
  position:absolute; top:10px; left:10px;
  font-size:.62rem; text-transform:uppercase; letter-spacing:.14em;
  background:rgba(10,10,15,.06); color:var(--muted);
  padding:3px 8px; border-radius:999px; font-weight:600;
}

/* Section heads */
.section-head{margin-bottom:36px; max-width:680px}
.section-head.center{margin-left:auto; margin-right:auto; text-align:center}
.kicker{
  display:inline-block; font-size:.78rem; text-transform:uppercase; letter-spacing:.16em;
  color:var(--accent); font-weight:600; margin-bottom:12px;
}
.section-head p{margin-top:14px; font-size:1.05rem; color:var(--muted)}

/* Tools */
.tools{padding:60px 0 40px}
.tabs{
  display:inline-flex; gap:4px; padding:5px;
  background:rgba(255,255,255,.7); backdrop-filter:blur(10px);
  border:1px solid var(--line); border-radius:999px;
  box-shadow:var(--sh-1);
  margin-bottom:28px; overflow-x:auto; max-width:100%;
  scrollbar-width:none;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  display:inline-flex; align-items:center; gap:8px;
  background:transparent; border:0; padding:10px 18px; border-radius:999px;
  font:inherit; font-weight:500; font-size:.92rem;
  color:var(--muted); cursor:pointer; transition:all .2s; white-space:nowrap;
}
.tab svg{width:15px; height:15px; opacity:.7}
.tab:hover{color:var(--ink)}
.tab.active{background:var(--ink); color:#fff; box-shadow:var(--sh-1)}
.tab.active svg{opacity:1}

.tools-grid{display:grid; grid-template-columns:1fr 320px; gap:28px; align-items:start}
.tools-main{display:flex; flex-direction:column; gap:18px}
.tools-side{display:flex; flex-direction:column; gap:18px; position:sticky; top:96px}

/* Card */
.card{
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:32px;
  box-shadow:var(--sh-2);
  position:relative;
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,.6), transparent 30%);
  border-radius:inherit;
}
.card.mini{padding:22px; border-radius:var(--r-lg)}
.mini-head{display:flex; align-items:center; gap:10px; margin-bottom:14px}
.mini-icon{
  width:32px; height:32px; border-radius:9px;
  background:var(--accent-soft); color:var(--accent);
  display:grid; place-items:center;
}
.mini-icon svg{width:16px; height:16px}
.ticks{list-style:none; padding:0; margin:0; display:grid; gap:10px; color:var(--ink-2); font-size:.92rem}
.ticks li{display:flex; align-items:center; gap:10px}
.ticks li::before{
  content:""; width:16px; height:16px; border-radius:50%;
  background:var(--accent-soft) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235b5bf6' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M20 6 9 17l-5-5'/></svg>") center/10px no-repeat;
  flex-shrink:0;
}

.calc-head{
  display:flex; gap:14px; align-items:flex-start; margin-bottom:24px;
  padding-bottom:24px; border-bottom:1px solid var(--line);
}
.calc-icon{
  width:44px; height:44px; flex-shrink:0;
  border-radius:12px;
  background:linear-gradient(180deg, var(--accent-soft), #fff);
  border:1px solid var(--line);
  color:var(--accent);
  display:grid; place-items:center;
}
.calc-icon svg{width:20px; height:20px}
.calc-head h3{font-size:1.25rem; margin-bottom:4px}
.calc-head p{font-size:.92rem; margin:0; color:var(--muted)}

/* Forms */
.calc-form{display:flex; flex-direction:column; gap:14px; position:relative; z-index:1}
.row{display:flex; flex-direction:column; gap:14px}
.row.two{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.imperial-only{display:grid; grid-template-columns:1fr 1fr; gap:12px; grid-column:span 1}
label{
  display:flex; flex-direction:column; gap:6px;
  font-size:.8rem; font-weight:500; color:var(--ink-2);
  text-transform:uppercase; letter-spacing:.08em;
}
input,select,textarea{
  font:inherit; font-size:.98rem; text-transform:none; letter-spacing:normal;
  padding:13px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:#fff; color:var(--ink);
  outline:none;
  transition:border-color .15s, box-shadow .15s, background .15s;
  width:100%;
  font-weight:500;
}
input::placeholder, textarea::placeholder{color:var(--muted-2); font-weight:400}
input:focus, select:focus, textarea:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 4px rgba(10,10,15,.06);
  background:#fff;
}
select{appearance:none; background:#fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b6b75' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>") right 12px center/16px no-repeat; padding-right:38px}
textarea{resize:vertical; min-height:120px}
.err{color:var(--danger); font-size:.86rem; min-height:1em; margin:4px 0 0}
.ok{color:var(--success); font-size:.92rem; margin:4px 0 0}

/* Result */
.result{
  margin-top:24px; padding:24px;
  border-radius:var(--r-lg);
  background:linear-gradient(180deg, #fafafa, #fff);
  border:1px solid var(--line);
  position:relative; z-index:1;
  animation:floatIn .35s ease both;
}
.result-top{display:flex; align-items:flex-start; justify-content:space-between; gap:14px; margin-bottom:18px}
.result-label{font-size:.78rem; color:var(--muted); text-transform:uppercase; letter-spacing:.12em; font-weight:600; margin-bottom:6px}
.result-value{font-size:3.2rem; font-weight:600; letter-spacing:-0.04em; line-height:1; color:var(--ink)}
.result-value small{font-family:var(--font-sans); font-size:1rem; font-weight:500; color:var(--muted); margin-left:8px}
.result-tag{
  padding:6px 14px; border-radius:999px;
  background:var(--ink); color:#fff;
  font-size:.78rem; font-weight:600; letter-spacing:.02em;
}
.result-tag.soft{background:var(--accent-soft); color:var(--accent)}
.result-note{color:var(--muted); font-size:.9rem; margin:14px 0 0; line-height:1.55}

/* BMI meter */
.bmi-meter{margin-top:6px}
.bmi-track{position:relative; display:flex; height:10px; border-radius:999px; overflow:hidden; box-shadow:inset 0 1px 2px rgba(10,10,15,.05)}
.seg{flex:1}
.seg.s1{background:#dbeafe; flex:.35}
.seg.s2{background:#bbf7d0; flex:.65}
.seg.s3{background:#fde68a; flex:.5}
.seg.s4{background:#fecaca; flex:1}
.bmi-marker{
  position:absolute; top:-5px; left:50%;
  width:20px; height:20px; border-radius:50%;
  background:#fff; border:3px solid var(--ink);
  transform:translateX(-50%);
  box-shadow:var(--sh-2);
  transition:left .5s cubic-bezier(.16,1,.3,1);
}
.bmi-legend{display:flex; justify-content:space-between; margin-top:8px; font-family:var(--font-mono); font-size:.72rem; color:var(--muted)}

/* Stat grid */
.result.grid3{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:12px;
  background:transparent; border:0; padding:0;
}
.stat{
  position:relative;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:22px;
  text-align:left;
  box-shadow:var(--sh-1);
  transition:transform .2s, box-shadow .2s;
}
.stat:hover{transform:translateY(-2px); box-shadow:var(--sh-2)}
.stat.highlight{background:var(--ink); color:#fff; border-color:var(--ink)}
.stat.highlight h4, .stat.highlight .big small{color:rgba(255,255,255,.55)}
.stat.highlight .big{color:#fff}
.stat h4{font-size:.78rem; color:var(--muted); margin:0 0 8px; font-weight:600; text-transform:uppercase; letter-spacing:.08em}
.big{font-size:1.85rem; font-weight:600; color:var(--ink); letter-spacing:-0.03em; line-height:1}
.big small{font-size:.78rem; font-weight:500; color:var(--muted); margin-left:6px; letter-spacing:0}
.stat-pill{
  position:absolute; top:14px; right:14px;
  padding:3px 9px; border-radius:999px; font-size:.66rem; font-weight:600;
  background:rgba(10,10,15,.06); color:var(--muted); text-transform:uppercase; letter-spacing:.06em;
}
.stat-pill.loss{background:rgba(220,38,38,.1); color:#b91c1c}
.stat-pill.gain{background:rgba(22,163,74,.1); color:#15803d}
.stat.highlight .stat-pill{background:rgba(255,255,255,.14); color:#fff}

/* Grade rows */
.gr-head{
  display:grid; grid-template-columns:2fr 1fr 1fr 36px; gap:12px;
  font-size:.72rem; text-transform:uppercase; letter-spacing:.1em; color:var(--muted); font-weight:600;
  padding:0 4px;
}
.gr-head span:last-child{display:none}
.gr-rows{display:flex; flex-direction:column; gap:10px}
.gr-row{
  display:grid; grid-template-columns:2fr 1fr 1fr auto; gap:10px; align-items:center;
  animation:floatIn .25s ease both;
}
.gr-actions{display:flex; gap:10px; flex-wrap:wrap; margin-top:8px; justify-content:space-between}

/* Features */
.features{padding:80px 0; border-top:1px solid var(--line)}
.feat-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:18px;
}
.feat{
  background:var(--bg-elev); border:1px solid var(--line);
  border-radius:var(--r-lg); padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .25s, box-shadow .25s;
}
.feat:hover{transform:translateY(-3px); box-shadow:var(--sh-2)}
.feat-icon{
  width:40px; height:40px; border-radius:11px;
  background:linear-gradient(180deg, var(--accent-soft), #fff);
  border:1px solid var(--line);
  color:var(--accent); display:grid; place-items:center; margin-bottom:18px;
}
.feat-icon svg{width:18px; height:18px}
.feat h4{margin-bottom:6px; font-size:1rem}
.feat p{font-size:.9rem; margin:0}

/* Sections */
.section{padding:90px 0; border-top:1px solid var(--line)}
.section.alt{background:linear-gradient(180deg, #fbfbf9, var(--bg))}
.section .kicker{margin-bottom:14px}
.section h2{margin-bottom:18px}
.section h3{margin-top:28px; margin-bottom:8px}
.section p{font-size:1rem; line-height:1.7}
.section p:not(.muted){color:var(--ink-2)}

/* Contact */
.contact-form{display:flex; flex-direction:column; gap:14px; margin-top:24px; padding:28px}
.socials{display:flex; gap:10px; margin-top:24px}
.socials a{
  width:38px; height:38px; border-radius:10px;
  display:grid; place-items:center;
  background:#fff; border:1px solid var(--line); color:var(--ink-2);
  transition:all .15s;
}
.socials a:hover{background:var(--ink); color:#fff; border-color:var(--ink); transform:translateY(-2px)}
.socials svg{width:16px; height:16px}

/* Footer */
.site-footer{
  background:var(--ink); color:#cfcfd6;
  padding:64px 0 28px; margin-top:60px;
  border-top:1px solid rgba(255,255,255,.05);
}
.site-footer .logo, .site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:#fff; color:var(--ink)}
.site-footer .logo-dot{color:var(--accent-2)}
.site-footer .logo-sub{color:#9a9aa3}
.footer-inner{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{max-width:280px}
.footer-brand .muted{color:#8a8a93; margin-top:14px}
.site-footer nav{display:flex; gap:64px; flex-wrap:wrap}
.site-footer nav h5{color:#fff; font-size:.78rem; text-transform:uppercase; letter-spacing:.12em; margin-bottom:14px; font-weight:600}
.site-footer nav ul{list-style:none; padding:0; margin:0; display:grid; gap:10px}
.site-footer nav a{color:#a0a0a8; font-size:.92rem; transition:color .15s}
.site-footer nav a:hover{color:#fff}
.footer-bottom{
  margin-top:28px; display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap;
  font-size:.84rem; color:#8a8a93;
}
.site-footer .muted{color:#7a7a83}

/* Responsive */
@media (max-width: 980px){
  .tools-grid{grid-template-columns:1fr}
  .tools-side{position:static; flex-direction:row; flex-wrap:wrap}
  .tools-side .card.mini, .tools-side .ad-container{flex:1; min-width:260px}
  .ad-container.tall{min-height:200px}
  .feat-grid{grid-template-columns:repeat(2, 1fr)}
}
@media (max-width: 720px){
  .site-header{top:8px; margin-top:8px}
  .header-inner{height:54px; padding:0 12px 0 16px; border-radius:18px}
  .nav-toggle{display:block; order:3; margin-left:6px}
  .nav-cta{display:none}
  .nav-list{
    display:none;
    position:absolute; top:64px; left:12px; right:12px;
    flex-direction:column; align-items:stretch; gap:2px;
    background:#fff; padding:10px; border:1px solid var(--line); border-radius:18px;
    box-shadow:var(--sh-3);
  }
  .main-nav.open .nav-list{display:flex}

  .hero{padding:50px 0 20px}
  .hero h1{font-size:clamp(2.2rem, 9vw, 3rem)}
  .hero-preview{margin-top:42px}
  .hp-body{grid-template-columns:1fr; min-height:auto}
  .hp-side{flex-direction:row; overflow-x:auto; border-right:0; border-bottom:1px solid var(--line); padding:14px}
  .hp-main{padding:24px}

  .strip-logos{gap:20px 28px; font-size:1.1rem}

  .row.two{grid-template-columns:1fr}
  .imperial-only{grid-template-columns:1fr 1fr}
  .result-value{font-size:2.6rem}
  .result.grid3{grid-template-columns:1fr}
  .gr-head{display:none}
  .gr-row{grid-template-columns:1fr 1fr auto; grid-template-areas: "name name name" "grade weight remove";}
  .gr-row .gr-name{grid-area:name}
  .gr-row .gr-grade{grid-area:grade}
  .gr-row .gr-weight{grid-area:weight}
  .gr-row .gr-remove{grid-area:remove}

  .card{padding:24px; border-radius:var(--r-lg)}
  .calc-head{flex-direction:row}
  .feat-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .features{padding:60px 0}
  .footer-inner{flex-direction:column; gap:32px}
  .site-footer nav{gap:36px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important}
}