/* =============================================
   IRONPLATE — style.css
   All styles: reset, tokens, layout, components
   ============================================= */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800;900&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap');

/* ── CSS Variables ── */
:root {
  --bg:        #f8f9ff;
  --surface:   #ffffff;
  --surface2:  #f0f2ff;
  --border:    #e4e7f5;
  --text:      #0f1123;
  --muted:     #6b7280;
  --blue:      #3b5bdb;
  --blue-lt:   #dbe4ff;
  --purple:    #7048e8;
  --purple-lt: #ede9fe;
  --violet:    #845ef7;
  --indigo:    #4263eb;
  --cyan:      #22d3ee;
  --green:     #12b886;
  --amber:     #f59e0b;
  --red:       #ef4444;
  --grad1:     linear-gradient(135deg,#3b5bdb 0%,#7048e8 100%);
  --grad2:     linear-gradient(135deg,#7048e8 0%,#845ef7 100%);
  --grad3:     linear-gradient(135deg,#22d3ee 0%,#3b5bdb 100%);
  --shadow-sm: 0 1px 4px rgba(59,91,219,.08);
  --shadow:    0 4px 20px rgba(59,91,219,.12);
  --shadow-lg: 0 12px 40px rgba(59,91,219,.18);
  --radius:    14px;
  --radius-lg: 22px;
  --nav-h:     68px;
  --font-h:    'Syne', sans-serif;
  --font-b:    'DM Sans', sans-serif;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-b);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:var(--font-b);cursor:pointer;border:none;background:none}
ul{list-style:none}
input,select,textarea{font-family:var(--font-b)}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}

/* ── Page load fade ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideRight{from{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:none}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes shimmer{0%{background-position:-400px 0}100%{background-position:400px 0}}

/* ============================================
   NAVBAR
   ============================================ */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:900;
  height:var(--nav-h);
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s;
}
.navbar.scrolled{box-shadow:var(--shadow)}
.nav-inner{
  max-width:1200px;margin:0 auto;height:100%;
  display:flex;align-items:center;gap:24px;padding:0 24px;
}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--grad1);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-h);font-weight:800;color:#fff;font-size:13px;letter-spacing:-.5px;
}
.nav-logo-name{font-family:var(--font-h);font-weight:800;font-size:18px;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:6px 14px;border-radius:8px;font-size:14px;font-weight:500;
  color:var(--muted);transition:all .2s;
}
.nav-link:hover,.nav-link.active{color:var(--blue);background:var(--blue-lt)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:16px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:10px;font-size:14px;font-weight:600;
  transition:all .22s;cursor:pointer;border:none;
}
.btn-primary{background:var(--grad1);color:#fff;box-shadow:0 4px 14px rgba(59,91,219,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(59,91,219,.45)}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid var(--blue)}
.btn-outline:hover{background:var(--blue-lt)}
.btn-white{background:#fff;color:var(--blue);border:1.5px solid var(--border);box-shadow:var(--shadow-sm)}
.btn-white:hover{border-color:var(--blue);background:var(--blue-lt)}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-lg{padding:13px 32px;font-size:16px;border-radius:13px}
.nav-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--grad1);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;cursor:pointer;
}
/* hamburger */
.nav-ham{display:none;flex-direction:column;gap:5px;padding:6px;background:none;border:none;cursor:pointer}
.nav-ham span{display:block;width:22px;height:2px;background:var(--text);border-radius:99px;transition:.3s}
.mob-menu{
  display:none;position:fixed;top:var(--nav-h);left:0;right:0;z-index:899;
  background:#fff;border-bottom:1px solid var(--border);padding:12px 24px;
  flex-direction:column;gap:4px;
}
.mob-menu.open{display:flex}
.mob-link{padding:10px 14px;border-radius:8px;font-weight:500;color:var(--muted)}
.mob-link:hover,.mob-link.active{color:var(--blue);background:var(--blue-lt)}

/* ============================================
   LANDING PAGE — index.html
   ============================================ */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:calc(var(--nav-h) + 60px) 24px 80px;
  position:relative;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:radial-gradient(ellipse 80% 60% at 60% 20%,#dbe4ff 0%,transparent 70%),
             radial-gradient(ellipse 50% 40% at 10% 80%,#ede9fe 0%,transparent 60%),
             var(--bg);
}
.hero-blob{
  position:absolute;border-radius:50%;filter:blur(60px);opacity:.35;pointer-events:none;
}
.hero-blob-1{width:500px;height:500px;background:#7048e8;top:-100px;right:-100px;animation:float 8s ease-in-out infinite}
.hero-blob-2{width:350px;height:350px;background:#3b5bdb;bottom:-50px;left:-80px;animation:float 10s ease-in-out infinite 2s}
.hero-inner{
  max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:60px;
  align-items:center;position:relative;z-index:1;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:99px;
  background:var(--blue-lt);color:var(--blue);font-size:13px;font-weight:600;
  margin-bottom:20px;animation:fadeIn .6s ease both;
}
.hero-badge-dot{width:8px;height:8px;border-radius:50%;background:var(--blue);animation:pulse 2s infinite}
.hero-title{
  font-family:var(--font-h);font-size:clamp(42px,5vw,68px);font-weight:900;
  line-height:1.08;letter-spacing:-2px;color:var(--text);
  animation:fadeUp .7s ease both .1s;
}
.hero-title span{
  background:var(--grad1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{
  margin-top:18px;font-size:17px;color:var(--muted);font-weight:400;max-width:480px;
  animation:fadeUp .7s ease both .2s;
}
.hero-btns{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;animation:fadeUp .7s ease both .3s}
.hero-stats{
  display:flex;gap:28px;margin-top:36px;animation:fadeUp .7s ease both .4s;
}
.hero-stat{text-align:center}
.hero-stat-val{font-family:var(--font-h);font-size:28px;font-weight:800;color:var(--text)}
.hero-stat-lbl{font-size:12px;color:var(--muted);font-weight:500;margin-top:2px}
.hero-visual{animation:fadeUp .9s ease both .2s}
/* floating cards on hero */
.hero-card-stack{position:relative;height:460px}
.hero-card{
  position:absolute;background:#fff;border-radius:var(--radius-lg);padding:20px;
  box-shadow:var(--shadow-lg);border:1px solid var(--border);
}
.hero-card-main{width:260px;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;animation:float 6s ease-in-out infinite}
.hero-card-1{width:200px;right:0;top:20px;z-index:2;animation:float 7s ease-in-out infinite 1s}
.hero-card-2{width:200px;left:0;bottom:40px;z-index:2;animation:float 8s ease-in-out infinite 2s}
.hc-icon{font-size:28px;margin-bottom:8px}
.hc-title{font-family:var(--font-h);font-size:15px;font-weight:700;color:var(--text)}
.hc-sub{font-size:12px;color:var(--muted);margin-top:3px}
.hc-bar{height:6px;border-radius:99px;background:var(--border);margin-top:12px;overflow:hidden}
.hc-fill{height:100%;border-radius:99px;background:var(--grad1);animation:shimmer 2s infinite}

/* features section */
.features{padding:100px 24px;background:#fff}
.section-inner{max-width:1100px;margin:0 auto}
.section-tag{font-size:12px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.section-title{font-family:var(--font-h);font-size:clamp(30px,3.5vw,46px);font-weight:800;color:var(--text);line-height:1.1;letter-spacing:-1px}
.section-sub{font-size:16px;color:var(--muted);margin-top:12px;max-width:500px}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
.feature-card{
  padding:30px;border-radius:var(--radius-lg);border:1px solid var(--border);
  background:var(--surface);transition:all .3s;cursor:default;
  animation:fadeUp .6s ease both;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue)}
.fc-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:24px;
  margin-bottom:20px;
}
.fc-title{font-family:var(--font-h);font-size:19px;font-weight:700;color:var(--text);margin-bottom:8px}
.fc-desc{font-size:14px;color:var(--muted);line-height:1.7}

/* how it works */
.how{padding:100px 24px;background:var(--bg)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px}
.step{padding:28px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--border);text-align:center;position:relative}
.step::after{
  content:'→';position:absolute;right:-14px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--border);
}
.step:last-child::after{display:none}
.step-num{
  width:40px;height:40px;border-radius:50%;background:var(--grad1);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-h);font-weight:800;font-size:14px;margin:0 auto 14px;
}
.step-title{font-family:var(--font-h);font-weight:700;font-size:15px;color:var(--text);margin-bottom:6px}
.step-desc{font-size:13px;color:var(--muted)}

/* CTA */
.cta-section{
  padding:100px 24px;
  background:linear-gradient(135deg,#1e1b4b 0%,#3b5bdb 50%,#7048e8 100%);
  text-align:center;position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta-title{font-family:var(--font-h);font-size:clamp(32px,4vw,52px);font-weight:900;color:#fff;letter-spacing:-1.5px;position:relative}
.cta-sub{font-size:17px;color:rgba(255,255,255,.75);margin-top:14px;position:relative}
.cta-btns{display:flex;gap:14px;justify-content:center;margin-top:36px;position:relative}
.btn-white-fill{background:#fff;color:var(--blue);font-weight:700}
.btn-white-fill:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}

/* footer */
footer{background:#0f1123;color:rgba(255,255,255,.6);padding:40px 24px;text-align:center}
.footer-inner{max-width:1100px;margin:0 auto}
.footer-logo{font-family:var(--font-h);font-size:20px;font-weight:800;color:#fff;margin-bottom:8px}
.footer-links{display:flex;gap:20px;justify-content:center;margin:16px 0;flex-wrap:wrap}
.footer-links a{font-size:13px;color:rgba(255,255,255,.5);transition:.2s}
.footer-links a:hover{color:#fff}
.footer-copy{font-size:12px;color:rgba(255,255,255,.3);margin-top:12px}

/* ============================================
   AUTH PAGE — auth.html
   ============================================ */
.auth-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:calc(var(--nav-h) + 40px) 24px 60px;
  background:radial-gradient(ellipse 70% 50% at 80% 20%,#dbe4ff,transparent 70%),
             radial-gradient(ellipse 50% 40% at 10% 80%,#ede9fe,transparent 60%),var(--bg);
}
.auth-card{
  background:#fff;border-radius:var(--radius-lg);padding:44px;
  box-shadow:var(--shadow-lg);border:1px solid var(--border);
  width:100%;max-width:480px;animation:fadeUp .6s ease both;
}
.auth-logo{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:28px}
.auth-logo-mark{
  width:44px;height:44px;border-radius:13px;background:var(--grad1);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-h);font-weight:900;color:#fff;font-size:16px;
}
.auth-logo-name{font-family:var(--font-h);font-weight:800;font-size:22px}
.auth-title{font-family:var(--font-h);font-size:26px;font-weight:800;text-align:center;color:var(--text);margin-bottom:6px}
.auth-sub{text-align:center;font-size:14px;color:var(--muted);margin-bottom:28px}
.tabs{display:flex;background:var(--surface2);border-radius:10px;padding:4px;margin-bottom:28px;gap:4px}
.tab{flex:1;padding:9px;border-radius:7px;font-size:14px;font-weight:600;color:var(--muted);text-align:center;transition:.2s;cursor:pointer;border:none;background:none}
.tab.active{background:#fff;color:var(--blue);box-shadow:var(--shadow-sm)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-input{
  width:100%;padding:11px 14px;border-radius:10px;
  border:1.5px solid var(--border);background:#fff;font-size:14px;color:var(--text);
  transition:border .2s,box-shadow .2s;outline:none;
}
.form-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,91,219,.12)}
.form-input::placeholder{color:#c4c9d8}
.form-error{font-size:12px;color:var(--red);margin-top:4px;display:none}
.form-error.show{display:block}
.form-hint{font-size:12px;color:var(--muted);margin-top:4px}
.btn-full{width:100%;justify-content:center;padding:13px}
.auth-switch{text-align:center;margin-top:18px;font-size:14px;color:var(--muted)}
.auth-switch a{color:var(--blue);font-weight:600}

/* strength indicator */
.strength-bar{display:flex;gap:4px;margin-top:6px}
.strength-seg{height:4px;flex:1;border-radius:99px;background:var(--border);transition:.3s}

/* ============================================
   ONBOARDING / PROFILE — profile.html
   ============================================ */
.profile-page{padding:calc(var(--nav-h) + 48px) 24px 80px;max-width:700px;margin:0 auto}
.profile-hero{
  background:var(--grad1);border-radius:var(--radius-lg);padding:36px;color:#fff;
  margin-bottom:32px;position:relative;overflow:hidden;
}
.profile-hero::after{
  content:'💪';position:absolute;right:30px;top:50%;transform:translateY(-50%);
  font-size:80px;opacity:.15;
}
.profile-hero-tag{font-size:12px;font-weight:700;letter-spacing:2px;text-transform:uppercase;opacity:.7;margin-bottom:8px}
.profile-hero-title{font-family:var(--font-h);font-size:32px;font-weight:800;letter-spacing:-1px}
.profile-hero-sub{opacity:.8;margin-top:8px;font-size:15px}
.progress-steps{display:flex;gap:0;margin-bottom:32px;background:#fff;border-radius:12px;border:1px solid var(--border);overflow:hidden}
.prog-step{
  flex:1;padding:14px 10px;text-align:center;font-size:12px;font-weight:600;
  color:var(--muted);border-right:1px solid var(--border);transition:.3s;
}
.prog-step:last-child{border-right:none}
.prog-step.active{color:var(--blue);background:var(--blue-lt)}
.prog-step.done{color:var(--green);background:#d1fae5}
.prog-num{font-family:var(--font-h);font-size:18px;font-weight:800;display:block;margin-bottom:2px}
.profile-card{background:#fff;border-radius:var(--radius-lg);padding:32px;border:1px solid var(--border);box-shadow:var(--shadow-sm);margin-bottom:20px;animation:fadeUp .5s ease both}
.profile-card-title{font-family:var(--font-h);font-size:18px;font-weight:800;color:var(--text);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.profile-card-title span{font-size:20px}
.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.input-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.range-wrap{position:relative}
.range-input{width:100%;-webkit-appearance:none;height:6px;border-radius:99px;background:var(--border);outline:none;transition:.2s}
.range-input::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--grad1);cursor:pointer;box-shadow:0 2px 6px rgba(59,91,219,.35)}
.range-val{position:absolute;top:-28px;background:var(--blue);color:#fff;padding:2px 8px;border-radius:6px;font-size:12px;font-weight:600;pointer-events:none;transform:translateX(-50%)}
/* toggle pills for activity */
.pill-group{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.pill{
  padding:8px 16px;border-radius:99px;border:1.5px solid var(--border);
  font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;transition:.2s;
  background:#fff;
}
.pill:hover{border-color:var(--blue);color:var(--blue)}
.pill.active{background:var(--blue-lt);border-color:var(--blue);color:var(--blue);font-weight:600}
/* goal cards */
.goal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:8px}
.goal-card{
  padding:16px;border-radius:12px;border:2px solid var(--border);
  text-align:center;cursor:pointer;transition:.25s;background:#fff;
}
.goal-card:hover{border-color:var(--blue);background:var(--blue-lt)}
.goal-card.active{border-color:var(--blue);background:var(--blue-lt)}
.goal-icon{font-size:26px;margin-bottom:6px}
.goal-title{font-size:13px;font-weight:600;color:var(--text)}

/* ============================================
   DASHBOARD — dashboard.html
   ============================================ */
.dash-wrap{padding:calc(var(--nav-h) + 36px) 24px 80px;max-width:1100px;margin:0 auto}
.page-hero{margin-bottom:36px;animation:fadeUp .6s ease both}
.page-hero-tag{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--blue);margin-bottom:8px}
.page-hero-title{font-family:var(--font-h);font-size:clamp(28px,3.5vw,44px);font-weight:900;color:var(--text);letter-spacing:-1.5px;line-height:1.1}
.page-hero-sub{font-size:15px;color:var(--muted);margin-top:8px}
.dash-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:28px}
.stat-card{
  background:#fff;border-radius:var(--radius);padding:22px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:.3s;animation:fadeUp .5s ease both;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.stat-icon{font-size:24px;margin-bottom:10px}
.stat-val{font-family:var(--font-h);font-size:32px;font-weight:800;color:var(--text);line-height:1}
.stat-lbl{font-size:13px;color:var(--muted);margin-top:4px}
.stat-change{font-size:12px;font-weight:600;margin-top:6px}
.stat-change.up{color:var(--green)}
.stat-change.down{color:var(--red)}
.dash-main{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin-bottom:28px}
.dash-card{background:#fff;border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border);box-shadow:var(--shadow-sm);animation:fadeUp .6s ease both}
.dash-card-title{font-family:var(--font-h);font-size:17px;font-weight:800;color:var(--text);margin-bottom:18px;display:flex;align-items:center;justify-content:space-between}
/* section cards */
.section-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sec-card{
  border-radius:var(--radius-lg);padding:28px;color:#fff;
  cursor:pointer;transition:.3s;position:relative;overflow:hidden;text-decoration:none;display:block;
}
.sec-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.sec-card::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(255,255,255,.15) 0%,transparent 70%);
}
.sec-card-diet{background:linear-gradient(135deg,#3b5bdb,#22d3ee)}
.sec-card-ex{background:linear-gradient(135deg,#7048e8,#845ef7)}
.sec-card-muscle{background:linear-gradient(135deg,#0f172a,#3b5bdb)}
.sec-icon{font-size:36px;margin-bottom:14px;position:relative}
.sec-title{font-family:var(--font-h);font-size:22px;font-weight:800;position:relative;letter-spacing:-.5px}
.sec-desc{font-size:13px;opacity:.8;margin-top:6px;position:relative}
.sec-arrow{position:absolute;right:20px;bottom:20px;font-size:24px;opacity:.6}

/* macro ring (diet preview) */
.macro-rings{display:flex;gap:16px;align-items:center}
.ring-wrap{text-align:center}
.ring-svg{width:70px;height:70px}
.ring-label{font-size:11px;color:var(--muted);margin-top:4px;font-weight:500}
.ring-val{font-family:var(--font-h);font-size:13px;font-weight:800;color:var(--text)}

/* activity chart bars */
.act-chart{display:flex;gap:8px;align-items:flex-end;height:100px;margin-top:8px}
.act-bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px}
.act-bar{width:100%;border-radius:6px 6px 0 0;background:var(--blue-lt);transition:height .5s ease}
.act-bar.filled{background:var(--grad1)}
.act-day{font-size:10px;color:var(--muted)}

/* ============================================
   DIET — diet.html
   ============================================ */
.diet-wrap{padding:calc(var(--nav-h) + 36px) 24px 80px;max-width:1100px;margin:0 auto}
/* food preference selector */
.pref-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.pref-card{
  padding:18px;border-radius:14px;border:2px solid var(--border);
  text-align:center;cursor:pointer;transition:.25s;background:#fff;
}
.pref-card:hover{border-color:var(--blue);background:var(--blue-lt)}
.pref-card.active{border-color:var(--blue);background:var(--blue-lt)}
.pref-card.disabled{opacity:.4;pointer-events:none}
.pref-icon{font-size:28px;margin-bottom:6px}
.pref-name{font-size:13px;font-weight:600;color:var(--text)}
.pref-cnt{font-size:11px;color:var(--blue);margin-top:2px;display:none}
.pref-card.active .pref-cnt{display:block}
/* calorie info */
.cal-card{
  background:linear-gradient(135deg,#3b5bdb,#7048e8);
  border-radius:var(--radius-lg);padding:28px;color:#fff;margin:24px 0;
}
.cal-big{font-family:var(--font-h);font-size:52px;font-weight:900;line-height:1}
.cal-lbl{opacity:.75;font-size:14px;margin-top:4px}
.macro-strip{display:flex;gap:24px;margin-top:20px}
.macro-item{text-align:center}
.macro-val{font-family:var(--font-h);font-size:22px;font-weight:800}
.macro-name{font-size:12px;opacity:.75}
/* meals */
.meal-tabs{display:flex;gap:8px;margin:24px 0;flex-wrap:wrap}
.meal-tab{
  padding:8px 18px;border-radius:99px;border:1.5px solid var(--border);
  font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;transition:.2s;background:#fff;
}
.meal-tab:hover{border-color:var(--blue);color:var(--blue)}
.meal-tab.active{background:var(--grad1);border-color:transparent;color:#fff}
.meal-card{
  background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);
  padding:28px;box-shadow:var(--shadow-sm);margin-bottom:16px;animation:fadeUp .4s ease both;
}
.meal-header{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.meal-icon{font-size:30px}
.meal-time{font-family:var(--font-h);font-size:17px;font-weight:800}
.meal-cal{margin-left:auto;background:var(--blue-lt);color:var(--blue);padding:4px 12px;border-radius:99px;font-size:13px;font-weight:700}
.food-items{display:flex;flex-direction:column;gap:12px}
.food-row{
  display:flex;align-items:center;gap:14px;
  padding:12px 16px;background:var(--bg);border-radius:10px;
}
.food-name{font-weight:500;font-size:14px;flex:1}
.food-macros{display:flex;gap:10px;font-size:12px;color:var(--muted)}
.food-macro span{font-weight:600;color:var(--text)}
.food-qty{font-size:13px;font-weight:600;color:var(--blue)}
/* macro bars */
.macro-progress{margin-top:20px}
.macro-bar-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.macro-bar-lbl{width:70px;font-size:13px;font-weight:600;color:var(--muted)}
.macro-bar-track{flex:1;height:8px;background:var(--border);border-radius:99px;overflow:hidden}
.macro-bar-fill{height:100%;border-radius:99px;transition:width 1s ease}
.macro-bar-num{width:50px;font-size:12px;font-weight:600;color:var(--text);text-align:right}
/* download btn */
.download-bar{
  position:sticky;bottom:24px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:16px 24px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:32px;animation:fadeUp .5s ease both;
}
.dl-text{font-size:14px;color:var(--muted)}
.dl-text b{color:var(--text)}

/* ============================================
   EXERCISE — exercise.html
   ============================================ */
.ex-wrap{padding:calc(var(--nav-h) + 36px) 24px 80px;max-width:1100px;margin:0 auto}
.filter-bar{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap}
.filter-lbl{font-size:13px;font-weight:600;color:var(--muted);flex-shrink:0}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  padding:7px 16px;border-radius:99px;border:1.5px solid var(--border);
  font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;transition:.2s;background:#fff;
}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip.active{background:var(--grad1);border-color:transparent;color:#fff}
/* muscle map */
.muscle-map{
  background:#fff;border-radius:var(--radius-lg);padding:28px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  display:grid;grid-template-columns:180px 1fr;gap:32px;
  margin-bottom:28px;
}
.muscle-map-title{font-family:var(--font-h);font-size:16px;font-weight:800;color:var(--text);margin-bottom:12px}
.body-svg{width:100%;cursor:pointer}
.muscle-zone{cursor:pointer;transition:opacity .2s;opacity:.85}
.muscle-zone:hover{opacity:1;filter:brightness(1.1)}
.legend{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.legend-row{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:500;color:var(--text)}
.legend-dot{width:12px;height:12px;border-radius:4px;flex-shrink:0}
/* ex grid */
.ex-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.ex-heading{font-family:var(--font-h);font-size:22px;font-weight:800;color:var(--text)}
.ex-count{font-size:13px;color:var(--muted)}
.ex-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ex-card{
  background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);
  overflow:hidden;transition:.3s;box-shadow:var(--shadow-sm);animation:fadeUp .4s ease both;
}
.ex-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.ex-card-top{padding:18px 18px 0;display:flex;align-items:center;justify-content:space-between}
.ex-card-icon{font-size:28px}
.ex-badges{display:flex;gap:6px;flex-wrap:wrap}
.ex-badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:99px}
.ex-card-body{padding:14px 18px 18px}
.ex-name{font-family:var(--font-h);font-size:16px;font-weight:800;color:var(--text);margin-bottom:4px;line-height:1.2}
.ex-target{font-size:12px;color:var(--muted);margin-bottom:14px}
.ex-stats{display:flex;gap:0;background:var(--bg);border-radius:10px;overflow:hidden;margin-bottom:12px}
.ex-stat{flex:1;padding:10px 8px;text-align:center;border-right:1px solid var(--border)}
.ex-stat:last-child{border-right:none}
.es-val{font-family:var(--font-h);font-size:14px;font-weight:800;line-height:1}
.es-lbl{font-size:10px;color:var(--muted);margin-top:3px;text-transform:uppercase;letter-spacing:.5px}
.ex-muscles{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}
.ex-tag{background:var(--bg);border:1px solid var(--border);padding:3px 9px;border-radius:99px;font-size:11px;color:var(--muted)}
.ex-tip{font-size:12px;color:var(--muted);line-height:1.6;padding-top:10px;border-top:1px solid var(--border)}

/* ============================================
   MUSCLE GROWTH — muscle.html
   ============================================ */
.muscle-wrap{padding:calc(var(--nav-h) + 36px) 24px 80px;max-width:1100px;margin:0 auto}
.muscle-builder{
  display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:start;
}
.exercise-selector-card{
  background:#fff;border-radius:var(--radius-lg);padding:28px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  position:sticky;top:calc(var(--nav-h) + 20px);
}
.ex-sel-title{font-family:var(--font-h);font-size:17px;font-weight:800;color:var(--text);margin-bottom:16px}
.ex-sel-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ex-sel-btn{
  padding:12px 10px;border-radius:10px;border:1.5px solid var(--border);
  font-size:12px;font-weight:600;color:var(--muted);cursor:pointer;transition:.25s;
  text-align:center;background:#fff;
}
.ex-sel-btn:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-lt)}
.ex-sel-btn.active{border-color:var(--blue);background:var(--blue-lt);color:var(--blue)}
.ex-sel-icon{display:block;font-size:20px;margin-bottom:4px}
/* day slider */
.day-slider-wrap{margin:20px 0}
.day-display{
  background:var(--grad1);color:#fff;border-radius:10px;padding:10px 16px;
  display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;
}
.day-label{font-size:13px;opacity:.8}
.day-num{font-family:var(--font-h);font-size:22px;font-weight:900}
.day-streak{font-size:12px;background:rgba(255,255,255,.2);padding:3px 8px;border-radius:99px}
/* skeleton canvas area */
.skeleton-display{
  background:#fff;border-radius:var(--radius-lg);padding:32px;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);text-align:center;
}
.skeleton-title{font-family:var(--font-h);font-size:22px;font-weight:800;color:var(--text);margin-bottom:6px}
.skeleton-sub{font-size:14px;color:var(--muted);margin-bottom:24px}
.skeleton-svg-wrap{position:relative;display:inline-block}
.skeleton-svg{width:280px}
/* progress bar below skeleton */
.muscle-progress-list{margin-top:24px;text-align:left}
.mp-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.mp-name{width:110px;font-size:13px;font-weight:600;color:var(--text);flex-shrink:0}
.mp-track{flex:1;height:10px;background:var(--border);border-radius:99px;overflow:hidden}
.mp-fill{height:100%;border-radius:99px;background:var(--grad1);transition:width 1.2s ease;width:0%}
.mp-pct{width:36px;font-size:12px;font-weight:700;color:var(--blue);text-align:right}
/* growth progress strip */
.growth-strip{margin:20px 0;background:var(--bg);border-radius:10px;padding:16px}
.gs-title{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}
.gs-bar-wrap{display:flex;gap:3px;height:36px;align-items:flex-end}
.gs-bar{flex:1;border-radius:3px 3px 0 0;background:var(--border);min-height:4px;transition:height .5s ease}
.gs-bar.grown{background:var(--grad1)}

/* ============================================
   TOAST / MODALS
   ============================================ */
.toast{
  position:fixed;bottom:24px;right:24px;z-index:9999;
  background:#0f1123;color:#fff;padding:14px 20px;border-radius:12px;
  font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);
  transform:translateY(80px);opacity:0;transition:all .35s cubic-bezier(.34,1.56,.64,1);
  display:flex;align-items:center;gap:10px;max-width:320px;
}
.toast.show{transform:none;opacity:1}
.toast-icon{font-size:18px;flex-shrink:0}

/* ============================================
   UTILITIES
   ============================================ */
.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-20{margin-top:20px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.text-center{text-align:center}
.text-muted{color:var(--muted)}
.text-blue{color:var(--blue)}
.fw-600{font-weight:600}.fw-700{font-weight:700}.fw-800{font-weight:800}
.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.hidden{display:none!important}
.divider{height:1px;background:var(--border);margin:20px 0}
.loader{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}

/* ============================================
   RESPONSIVE
   ============================================ */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{display:none}
  .features-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step::after{display:none}
  .dash-grid{grid-template-columns:1fr 1fr}
  .dash-main{grid-template-columns:1fr}
  .section-cards{grid-template-columns:1fr}
  .ex-grid{grid-template-columns:1fr 1fr}
  .muscle-builder{grid-template-columns:1fr}
  .exercise-selector-card{position:static}
  .pref-grid{grid-template-columns:1fr 1fr}
  .muscle-map{grid-template-columns:140px 1fr}
}
@media(max-width:600px){
  .nav-links,.nav-actions .btn-white{display:none}
  .nav-ham{display:flex}
  .features-grid,.steps,.input-grid,.input-grid-3,.ex-grid,.form-row{grid-template-columns:1fr}
  .goal-grid{grid-template-columns:1fr 1fr}
  .ex-sel-grid{grid-template-columns:1fr 1fr 1fr}
  .tabs{font-size:13px}
  .muscle-map{grid-template-columns:1fr}
  .auth-card{padding:28px 20px}
}