/* ============================================================
   AAMPJOINT.COM — style.css
   Design language: "Range of Motion" — inspired by the
   goniometer, the arc-shaped tool physical therapists use to
   measure a joint's degrees of movement. Arcs, degree ticks and
   brass instrument tones replace generic checkmark/badge UI.
   Token naming: --aj- prefix
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Public+Sans:wght@300;400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* -- core palette -- */
  --aj-pine:      #16302A;
  --aj-pine-2:    #1E3F37;
  --aj-pine-3:    #274A40;
  --aj-pine-pal:  #E7EEEA;
  --aj-bone:      #F3EEE2;
  --aj-bone-2:    #EAE2D0;
  --aj-paper:     #FBF8F1;
  --aj-brass:     #A9822E;
  --aj-brass-lt:  #C79F49;
  --aj-brass-pal: #F3E9D2;
  --aj-clay:      #9C4B2C;
  --aj-clay-lt:   #B8663F;
  --aj-clay-pal:  #F3E2D8;
  --aj-ink:       #191C16;
  --aj-ink-deep:  #0A100D;
  --aj-slate:     #565C50;
  --aj-faint:     #8A8F80;
  --aj-line:      #D9D0BB;
  --aj-line-lt:   #E7E1D0;
  --aj-white:     #FFFFFF;

  /* -- type -- */
  --f-display: 'Spectral', Georgia, serif;
  --f-body: 'Public Sans', -apple-system, Segoe UI, sans-serif;
  --f-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* -- shape / motion -- */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 22px;
  --sh-1: 0 1px 4px rgba(22,48,42,.08);
  --sh-2: 0 10px 30px rgba(22,48,42,.14);
  --sh-3: 0 24px 60px rgba(22,48,42,.22);
  --ease: cubic-bezier(.22,.85,.32,1);
}

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

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--f-body);
  color: var(--aj-ink);
  background: var(--aj-paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--f-display); font-weight:600; margin:0; color: var(--aj-pine); line-height:1.15; }
p{ margin:0; }
.eyebrow{
  font-family: var(--f-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--aj-brass);
  font-weight:600;
}
.container{ max-width: 1280px; margin: 0 auto; padding: 0 32px; }
section{ position: relative; }

:focus-visible{ outline: 2.5px solid var(--aj-clay); outline-offset: 3px; border-radius: 4px; }

/* -------------------- BUTTONS -------------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  font-family: var(--f-body); font-weight:700; font-size: 1rem;
  padding: 15px 30px; border-radius: 999px; cursor:pointer; border:none;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
  white-space: nowrap;
}
.btn-primary{ background: var(--aj-clay); color: var(--aj-white); box-shadow: var(--sh-2); }
.btn-primary:hover{ background: var(--aj-clay-lt); transform: translateY(-2px); box-shadow: var(--sh-3); }
.btn-ghost{ background: transparent; color: var(--aj-pine); border: 1.5px solid var(--aj-pine); }
.btn-ghost:hover{ background: var(--aj-pine); color: var(--aj-white); }
.btn-block{ width:100%; }
.btn-sm{ padding: 11px 20px; font-size:.92rem; }

/* -------------------- ARC MOTIF (signature element) -------------------- */
.arc-tick{ stroke: var(--aj-brass); }
.arc-divider{ display:flex; align-items:center; justify-content:center; padding: 10px 0; }
.arc-divider svg{ width: 120px; height: 34px; }

/* -------------------- NAV -------------------- */
nav{
  position: sticky; top:0; z-index: 100;
  background: rgba(251,248,241,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--aj-line-lt);
}
.nav-inner{ max-width:1180px; margin:0 auto; padding: 16px 28px; display:flex; align-items:center; justify-content:space-between; }
.nav-logo{ display:flex; align-items:baseline; gap:2px; font-family: var(--f-display); font-weight:700; font-size:1.36rem; color: var(--aj-pine); }
.nav-logo .lg-mark{ color: var(--aj-clay); }
.nav-logo .lg-num{ font-family: var(--f-mono); font-size:.7rem; font-weight:600; align-self:flex-start; color: var(--aj-brass); border:1px solid var(--aj-brass); border-radius:4px; padding:1px 5px; margin-left:4px; }
.nav-links{ display:flex; align-items:center; gap: 34px; }
.nav-links a:not(.nav-cta){ font-size:.95rem; font-weight:600; color: var(--aj-pine-3); position:relative; padding: 4px 0; }
.nav-links a:not(.nav-cta)::after{ content:""; position:absolute; left:0; bottom:-2px; width:0; height:2px; background: var(--aj-clay); transition: width .25s var(--ease); }
.nav-links a:not(.nav-cta):hover::after{ width:100%; }
.nav-cta{ background: var(--aj-pine); color: var(--aj-white); padding: 10px 22px; border-radius: 999px; font-weight:700; font-size:.9rem; letter-spacing:.02em; transition: background .2s; }
.nav-cta:hover{ background: var(--aj-clay); }
.hamburger{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.hamburger span{ display:block; width:24px; height:2px; background: var(--aj-pine); margin:5px 0; transition: transform .25s, opacity .25s; }
.mobile-menu{ position:fixed; inset:0 0 0 auto; width:78%; max-width:340px; background: var(--aj-paper); box-shadow: var(--sh-3); transform: translateX(100%); transition: transform .32s var(--ease); z-index: 200; padding: 90px 30px; }
.mobile-menu.open{ transform: translateX(0); }
.mobile-menu a{ display:block; padding: 14px 0; font-size:1.1rem; font-weight:600; color: var(--aj-pine); border-bottom: 1px solid var(--aj-line-lt); }
.menu-scrim{ position:fixed; inset:0; background: rgba(25,28,22,.4); opacity:0; pointer-events:none; transition: opacity .3s; z-index:150; }
.menu-scrim.open{ opacity:1; pointer-events:all; }

/* -------------------- HERO -------------------- */
.hero{ padding: 84px 0 56px; overflow: hidden; }
.hero-grid{ display:grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items:center; }
.hero-copy{ position:relative; }
.hero-arc-bg{ position:absolute; top:-60px; left:-90px; width:520px; height:520px; opacity:.55; z-index:0; pointer-events:none; }
.hero-eyebrow{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.hero-eyebrow .dot{ width:6px; height:6px; border-radius:50%; background: var(--aj-clay); }
.hero-h1{ font-size: clamp(2.3rem, 3.6vw, 3.4rem); position:relative; z-index:1; }
.hero-h1 em{ font-style: italic; color: var(--aj-clay); font-weight:500; }
.hero-sub{ margin-top: 22px; font-size: 1.14rem; color: var(--aj-slate); max-width: 480px; position:relative; z-index:1; }
.hero-cta-row{ display:flex; align-items:center; gap:22px; margin-top: 34px; flex-wrap:wrap; }
.hero-guarantee-tag{ font-family: var(--f-mono); font-size:.78rem; color: var(--aj-pine-3); display:flex; align-items:center; gap:8px; }
.hero-stats{ display:flex; gap:36px; margin-top: 46px; padding-top: 28px; border-top: 1px solid var(--aj-line); }
.hero-stat b{ display:block; font-family: var(--f-display); font-size:1.6rem; color: var(--aj-pine); }
.hero-stat span{ font-size:.82rem; color: var(--aj-faint); }
.hero-visual{ position:relative; }
.hero-visual-card{ background: linear-gradient(160deg, var(--aj-pine) 0%, var(--aj-pine-2) 100%); border-radius: var(--r-lg); padding: 40px; position:relative; box-shadow: var(--sh-3); }
.hero-visual-card img{ border-radius: var(--r-md); }
.hero-visual-badge{ position:absolute; bottom: -22px; left: -22px; background: var(--aj-paper); border-radius: var(--r-md); padding: 16px 20px; box-shadow: var(--sh-2); display:flex; align-items:center; gap:12px; }
.hero-visual-badge svg{ width:34px; height:34px; flex-shrink:0; }
.hero-visual-badge b{ display:block; font-size:.86rem; color:var(--aj-pine); }
.hero-visual-badge span{ font-size:.74rem; color: var(--aj-faint); }
.hero-visual-tag{ position:absolute; top: 26px; right: -18px; background: var(--aj-brass); color: var(--aj-white); font-family: var(--f-mono); font-size:.72rem; font-weight:600; padding: 8px 14px; border-radius: 999px; box-shadow: var(--sh-2); transform: rotate(4deg); }

/* -------------------- TRUST STRIP -------------------- */
.trust-strip{ background: var(--aj-pine); padding: 22px 0; }
.trust-inner{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap: 18px; }
.trust-item{ display:flex; align-items:center; gap:10px; color: var(--aj-bone); font-size:.86rem; font-weight:600; }
.trust-item svg{ width:20px; height:20px; color: var(--aj-brass-lt); flex-shrink:0; }

/* -------------------- SECTION HEADERS -------------------- */
.sec-head{ text-align:center; max-width: 700px; margin: 0 auto 52px; }
.sec-head .eyebrow{ display:block; margin-bottom: 14px; }
.sec-head h2{ font-size: clamp(1.7rem, 2.6vw, 2.35rem); }
.sec-head p{ margin-top:16px; color: var(--aj-slate); font-size: 1.02rem; }
.band{ padding: 104px 0; }
.band-alt{ background: var(--aj-bone); }

/* -------------------- BENEFITS -------------------- */
.benefits-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.benefit-card{ background: var(--aj-paper); border: 1px solid var(--aj-line-lt); border-radius: var(--r-lg); padding: 34px 28px; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.benefit-card:hover{ transform: translateY(-5px); box-shadow: var(--sh-2); }
.benefit-arc{ width:52px; height:52px; margin-bottom: 20px; }
.benefit-card h3{ font-size: 1.2rem; margin-bottom: 10px; }
.benefit-card p{ color: var(--aj-slate); font-size: .95rem; }

/* -------------------- INGREDIENTS -------------------- */
.ing-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.ing-card{ background: var(--aj-white); border-radius: var(--r-md); padding: 24px 18px; border: 1px solid var(--aj-line-lt); text-align:center; position:relative; }
.ing-deg{ font-family: var(--f-mono); font-size:.72rem; color: var(--aj-brass); font-weight:600; margin-bottom:10px; }
.ing-name{ font-family: var(--f-display); font-weight:600; font-size: 1.02rem; color: var(--aj-pine); margin-bottom:8px; }
.ing-desc{ font-size: .84rem; color: var(--aj-slate); }
.ing-note{ text-align:center; margin-top: 34px; color: var(--aj-faint); font-size:.88rem; font-family: var(--f-mono); }

/* -------------------- HOW IT WORKS -------------------- */
.how-wrap{ display:grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items:center; }
.how-steps{ display:flex; flex-direction:column; gap: 30px; }
.how-step{ display:flex; gap: 20px; }
.how-arc-num{ width:56px; height:56px; flex-shrink:0; }
.how-step h3{ font-size: 1.08rem; margin-bottom:6px; }
.how-step p{ color: var(--aj-slate); font-size:.94rem; }
.how-visual{ background: var(--aj-pine-pal); border-radius: var(--r-lg); padding: 40px; }
.how-visual img{ border-radius: var(--r-md); box-shadow: var(--sh-2); }

/* -------------------- PRICE BAND + CHECKOUT IMAGE (no cards) -------------------- */
.price-band{ background: var(--aj-pine); padding: 56px 0 6px; text-align:center; }
.pb-inner{ max-width: 760px; margin: 0 auto; }
.pb-inner h2{ color: var(--aj-white); font-size: clamp(1.5rem, 2.4vw, 2rem); margin-bottom: 12px; }
.pb-inner p{ font-family: var(--f-mono); font-size:.86rem; color: var(--aj-brass-lt); }
.price-sec{ background: var(--aj-pine); padding: 34px 0 72px; text-align:center; }
.price-link{ display:block; max-width: 900px; margin: 0 auto; border-radius: var(--r-md); overflow:hidden; }
.price-img-lg{ width:100%; height:auto; display:block; border-radius: var(--r-md); transition: transform .3s var(--ease); }
.price-link:hover .price-img-lg{ transform: scale(1.015); }

/* -------------------- REVIEWS -------------------- */
.rev-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.rev-card{ background: var(--aj-paper); border-radius: var(--r-lg); overflow:hidden; border: 1px solid var(--aj-line-lt); }
.rev-photo{ aspect-ratio: 16/10; background: var(--aj-bone-2); overflow:hidden; }
.rev-photo img{ width:100%; height:100%; object-fit:cover; }
.rev-body{ padding: 24px 24px 28px; }
.rev-arc-rating{ display:flex; align-items:center; gap:8px; margin-bottom: 14px; }
.rev-arc-rating svg{ width:64px; height:20px; }
.rev-quote{ font-family: var(--f-display); font-style:italic; font-size: 1.02rem; color: var(--aj-ink); margin-bottom: 16px; }
.rev-meta{ font-family: var(--f-mono); font-size:.78rem; color: var(--aj-faint); }
.rev-meta b{ color: var(--aj-pine-3); font-style:normal; }
.rev-disclaimer{ text-align:center; margin-top:30px; font-size:.8rem; color: var(--aj-faint); max-width:560px; margin-left:auto; margin-right:auto; }

/* -------------------- GUARANTEE -------------------- */
.guar-band{ background: var(--aj-pine); color: var(--aj-bone); }
.guar-wrap{ display:grid; grid-template-columns: .95fr 1.05fr; gap: 56px; align-items:center; }
.guar-arc{ width:64px; height:64px; margin-bottom:22px; }
.guar-wrap h2{ color: var(--aj-white); font-size: clamp(1.7rem,2.6vw,2.3rem); margin-bottom:18px; }
.guar-wrap p{ color: var(--aj-bone-2); font-size:1.02rem; margin-bottom:14px; max-width:480px; }
.guar-visual{ border-radius: var(--r-lg); overflow:hidden; box-shadow: var(--sh-3); }
.guar-visual img{ width:100%; height:100%; object-fit:cover; }

/* -------------------- FAQ -------------------- */
.faq-list{ max-width: 780px; margin: 0 auto; display:flex; flex-direction:column; gap: 14px; }
.faq-item{ background: var(--aj-white); border: 1px solid var(--aj-line-lt); border-radius: var(--r-md); overflow:hidden; }
.faq-q{ width:100%; text-align:left; background:none; border:none; cursor:pointer; padding: 22px 26px; display:flex; align-items:center; justify-content:space-between; gap: 16px; font-family: var(--f-display); font-weight:600; font-size: 1.04rem; color: var(--aj-pine); }
.faq-q .plus{ width:22px; height:22px; flex-shrink:0; position:relative; }
.faq-q .plus::before, .faq-q .plus::after{ content:""; position:absolute; background: var(--aj-clay); border-radius:2px; transition: transform .3s var(--ease); }
.faq-q .plus::before{ top:50%; left:0; width:100%; height:2px; margin-top:-1px; }
.faq-q .plus::after{ left:50%; top:0; height:100%; width:2px; margin-left:-1px; }
.faq-item.open .plus::after{ transform: rotate(90deg); opacity:0; }
.faq-ans{ max-height:0; overflow:hidden; transition: max-height .35s var(--ease); }
.faq-ans p{ padding: 0 26px 24px; color: var(--aj-slate); font-size:.96rem; }

/* -------------------- FINAL CTA -------------------- */
.cta-final{ background: var(--aj-ink-deep); padding: 120px 0; text-align:center; position:relative; overflow:hidden; border-top: 1px solid rgba(169,130,46,.25); }
.cta-final::before{ content:""; position:absolute; inset:0; background: radial-gradient(circle at 50% 0%, rgba(169,130,46,.18), transparent 60%); }
.cta-final-inner{ position:relative; z-index:1; max-width:640px; margin:0 auto; }
.cta-final h2{ color: var(--aj-white); font-size: clamp(1.9rem,3.4vw,2.7rem); margin-bottom:18px; }
.cta-final h2 em{ color: var(--aj-brass-lt); font-style:italic; }
.cta-final-img{ width: 150px; height:150px; object-fit:cover; border-radius: 50%; margin: 30px auto; border: 3px solid var(--aj-brass); box-shadow: var(--sh-3); display:block; }
.cta-final p{ color: var(--aj-bone-2); font-size: 1.06rem; margin-bottom: 34px; }

/* -------------------- FOOTER -------------------- */
footer{ background: var(--aj-pine-2); color: var(--aj-bone-2); padding: 56px 0 26px; border-top: 1px solid rgba(169,130,46,.3); }
.foot-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.foot-logo{ font-family: var(--f-display); font-weight:700; font-size:1.3rem; color: var(--aj-white); margin-bottom:14px; }
.foot-desc{ font-size:.88rem; color: var(--aj-faint); max-width: 320px; }
.foot-col h4{ font-family: var(--f-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color: var(--aj-brass-lt); margin-bottom: 16px; }
.foot-col a{ display:block; font-size:.88rem; color: var(--aj-bone-2); margin-bottom: 11px; opacity:.85; }
.foot-col a:hover{ opacity:1; text-decoration:underline; }
.foot-bottom{ border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; font-size:.78rem; color: var(--aj-faint); line-height:1.7; }
.foot-bottom p{ margin-bottom: 12px; }

/* -------------------- REVEAL ANIM -------------------- */
/* Only animate once JS confirms it's running (body.js) so content
   is never hidden for no-JS users, crawlers, or if JS errors. */
body.js .fade-up{ opacity:0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
body.js .fade-up.in{ opacity:1; transform:none; }

/* -------------------- RESPONSIVE -------------------- */
@media (max-width: 980px){
  .hero-grid, .how-wrap, .guar-wrap{ grid-template-columns: 1fr; }
  .benefits-grid, .rev-grid{ grid-template-columns: repeat(2,1fr); }
  .ing-grid{ grid-template-columns: repeat(3,1fr); }
  .foot-grid{ grid-template-columns: 1fr 1fr; }
  .price-band{ padding: 46px 0 6px; }
  .price-sec{ padding: 26px 0 56px; }
}
@media (max-width: 720px){
  .nav-links{ position:fixed; inset:0; display:none; }
  .hamburger{ display:block; }
  .band{ padding: 60px 0; }
  .hero{ padding: 40px 0 30px; }
  .benefits-grid, .rev-grid, .ing-grid{ grid-template-columns: 1fr; }
  .hero-stats{ flex-wrap:wrap; gap:24px; }
  .trust-inner{ justify-content:center; text-align:center; }
  .foot-grid{ grid-template-columns: 1fr; gap: 30px; }
  .hero-visual-tag{ right: 6px; }
  .hero-visual-badge{ left: 6px; bottom:-16px; }
}