/* KG FitTrack — monochrome edition.
   Clean black & white, editorial-style layout: hairline borders, big numbers,
   generous spacing. Looks like a premium minimalist fitness app. */

:root{
  --bg:#f4f4f4;
  --paper:#ffffff;
  --ink:#111111;
  --ink-2:#444444;
  --muted:#8a8a8a;
  --faint:#bdbdbd;
  --line:#e6e6e6;
  --line-strong:#111111;
  --fill:#f0f0f0;
  --on-ink:#ffffff;                      /* text on top of --ink surfaces  */
  --hero-dim:rgba(255,255,255,.55);
  --hero-mid:rgba(255,255,255,.6);
  --hero-body:rgba(255,255,255,.78);
  --ink-soft:rgba(17,17,17,.06);
  --bar-muted:#d9d9d9;
  --glass:rgba(255,255,255,.92);
  --radius:16px;
  --shadow:0 1px 2px rgba(0,0,0,.05), 0 12px 32px rgba(0,0,0,.07);
}

/* ---------- DARK MODE (still pure black & white) ---------- */
html[data-theme="dark"]{
  --bg:#000000;
  --paper:#121212;
  --ink:#f5f5f5;
  --ink-2:#cfcfcf;
  --muted:#9a9a9a;
  --faint:#5c5c5c;
  --line:#2a2a2a;
  --line-strong:#f5f5f5;
  --fill:#1f1f1f;
  --on-ink:#111111;
  --hero-dim:rgba(0,0,0,.5);
  --hero-mid:rgba(0,0,0,.55);
  --hero-body:rgba(0,0,0,.72);
  --ink-soft:rgba(245,245,245,.08);
  --bar-muted:#3a3a3a;
  --glass:rgba(18,18,18,.92);
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 12px 32px rgba(0,0,0,.5);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  min-height:100vh;
  display:flex;justify-content:center;
  -webkit-font-smoothing:antialiased;
}

/* Emojis render in gray so the whole app stays black & white */
.card,.hero,.stat,.log,.toast,.btn,.fab,.sheet,.tab-icon,.brand-sub,.login-sub,.empty,.section-title{filter:grayscale(1)}

/* Phone frame */
.phone{
  width:100%;max-width:440px;min-height:100vh;
  background:var(--paper);
  position:relative;
  display:flex;flex-direction:column;
}
@media(min-width:480px){
  .phone{margin:20px 0;min-height:calc(100vh - 40px);border-radius:26px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow)}
}

/* App bar */
.appbar{
  position:sticky;top:0;z-index:20;
  background:var(--glass);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.appbar-in{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 14px}
.brand{display:flex;align-items:center;gap:12px}
.logo{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-size:15px;color:var(--on-ink);font-weight:900;letter-spacing:-.5px;
  background:var(--ink);
}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.3px}
.brand-sub{font-size:12px;color:var(--muted);margin-top:1px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--paper);border:1px solid var(--line);color:var(--ink);
  text-decoration:none;font-size:17px;
}

/* Content */
.content{flex:1;padding:20px 18px 100px;overflow-y:auto}

/* Cards */
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin-bottom:14px;
}
.card-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.card-title{font-size:15px;font-weight:800;letter-spacing:-.2px}
.card-sub{font-size:12px;color:var(--muted)}

/* Hero banner — solid black block */
.hero{
  border-radius:var(--radius);padding:22px 20px;margin-bottom:18px;
  background:var(--ink);color:var(--on-ink);
  position:relative;overflow:hidden;
}
.hero p{margin:0;font-size:11px;font-weight:700;letter-spacing:1.4px;
  text-transform:uppercase;color:var(--hero-dim)}
.hero h2{margin:6px 0 0;font-size:30px;font-weight:900;letter-spacing:-.8px;line-height:1.1}
.hero h2 span{font-weight:600;color:var(--hero-mid)}
.hero p + h2 + p, .hero h2 ~ p{margin-top:10px;font-size:13px;font-weight:500;
  letter-spacing:0;text-transform:none;color:var(--hero-body)}
.hero .big{font-size:46px;font-weight:900;line-height:1}

/* Stat grid */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.stat{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;
}
.stat .k{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.6px;
  text-transform:uppercase;display:flex;align-items:center;gap:6px}
.stat .v{font-size:28px;font-weight:900;letter-spacing:-1px;margin-top:8px}
.stat .u{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:0}

/* Progress bar */
.bar{height:6px;border-radius:99px;background:var(--fill);overflow:hidden;margin-top:12px}
.bar > span{display:block;height:100%;border-radius:99px;background:var(--ink)}

/* Rows */
.row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px solid var(--line);
}
.row:first-child{padding-top:6px}
.row:last-child{border-bottom:none;padding-bottom:4px}
.row .name{font-weight:700;font-size:14px;letter-spacing:-.1px}
.row .meta{font-size:12px;color:var(--muted);margin-top:3px}

/* Pills — outlined monochrome chips */
.pill{
  font-size:12px;font-weight:800;padding:7px 12px;border-radius:99px;
  background:var(--ink);color:var(--on-ink);white-space:nowrap;letter-spacing:.2px;
}
.pill.blue,.pill.violet{background:var(--paper);color:var(--ink);border:1.5px solid var(--ink)}
.pill.orange{background:var(--fill);color:var(--ink);border:1px solid var(--line)}

.section-title{
  font-size:11px;font-weight:800;color:var(--muted);
  text-transform:uppercase;letter-spacing:1.4px;margin:26px 4px 10px;
  display:flex;align-items:center;gap:10px;
}
.section-title::after{content:"";flex:1;height:1px;background:var(--line)}

/* Forms */
label{display:block;font-size:11px;color:var(--ink-2);margin:14px 0 6px;
  font-weight:800;text-transform:uppercase;letter-spacing:.8px}
input,select,textarea{
  width:100%;padding:14px 15px;border-radius:12px;border:1.5px solid var(--line);
  background:var(--paper);color:var(--ink);font-size:15px;outline:none;
  transition:border-color .15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--ink)}
input::placeholder{color:var(--faint)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.btn{
  display:block;width:100%;padding:15px;border:none;border-radius:12px;
  font-size:15px;font-weight:800;cursor:pointer;margin-top:18px;
  background:var(--ink);color:var(--on-ink);letter-spacing:.2px;
}
.btn:active{transform:translateY(1px);opacity:.9}
.btn.ghost{background:var(--paper);color:var(--ink);border:1.5px solid var(--ink)}
.btn.small{width:auto;padding:9px 16px;margin:0;font-size:13px;border-radius:10px}

/* Log list */
.log{list-style:none;margin:0;padding:0}
.log li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border:1px solid var(--line);border-radius:14px;margin-bottom:8px;
  background:var(--paper);
}
.log .l-main{font-weight:700;font-size:14px}
.log .l-sub{font-size:12px;color:var(--muted);margin-top:3px}
.log .l-val{font-weight:900;font-size:14px;text-align:right;white-space:nowrap;letter-spacing:-.2px}
.empty{color:var(--muted);text-align:center;padding:30px 12px;font-size:14px}

/* Toast */
.toast{padding:13px 15px;border-radius:12px;font-size:14px;font-weight:600;margin-bottom:16px;
  background:var(--paper)}
.toast-ok{border:1.5px solid var(--ink);color:var(--ink)}
.toast-err{border:1.5px solid var(--ink);color:var(--ink);background:var(--fill)}

/* Bottom tab bar */
.tabbar{
  position:sticky;bottom:0;z-index:20;
  display:grid;grid-template-columns:repeat(6,1fr);
  background:var(--glass);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:10px 8px calc(10px + env(safe-area-inset-bottom));
}
.tab{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  text-decoration:none;color:var(--faint);font-size:10px;font-weight:800;
  letter-spacing:.6px;text-transform:uppercase;
  padding:7px 0;border-radius:12px;position:relative;
}
.tab-icon{font-size:20px;line-height:1;opacity:.45}
.tab-active{color:var(--ink)}
.tab-active .tab-icon{opacity:1}
.tab-active::after{
  content:"";position:absolute;top:-10px;left:25%;right:25%;height:2px;
  background:var(--ink);border-radius:2px;
}

/* Login screen */
.login-wrap{min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:32px;max-width:440px;margin:0 auto;width:100%}
.login-logo{width:76px;height:76px;border-radius:22px;display:grid;place-items:center;
  font-size:28px;font-weight:900;letter-spacing:-1px;color:var(--on-ink);margin:0 auto 20px;
  background:var(--ink)}
.login-title{text-align:center;font-size:30px;font-weight:900;letter-spacing:-1px;margin:0}
.login-sub{text-align:center;color:var(--muted);margin:8px 0 30px;font-size:14px}
.hint{text-align:center;color:var(--muted);font-size:12px;margin-top:20px}

a.plain{color:var(--ink);text-decoration:underline}
.logout-link{display:block;text-align:center;color:var(--muted);
  text-decoration:underline;font-size:13px;font-weight:700;margin-top:8px;padding:10px}

/* ============ ANIMATIONS ============ */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:translateY(0)}
}
.content > *{animation:fadeUp .45s cubic-bezier(.2,.7,.3,1) both}
.content > *:nth-child(1){animation-delay:.02s}
.content > *:nth-child(2){animation-delay:.06s}
.content > *:nth-child(3){animation-delay:.10s}
.content > *:nth-child(4){animation-delay:.14s}
.content > *:nth-child(5){animation-delay:.18s}
.content > *:nth-child(6){animation-delay:.22s}
.content > *:nth-child(7){animation-delay:.26s}
.content > *:nth-child(8){animation-delay:.30s}
.content > *:nth-child(n+9){animation-delay:.34s}
/* modals & FAB opt out of the stagger (they have their own transitions) */
.content > .sheet-backdrop{animation:none!important}
@keyframes fabIn{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}
.content > .fab{animation:fabIn .4s cubic-bezier(.3,1.6,.5,1) .3s both}
.stats .stat{animation:fadeUp .45s cubic-bezier(.2,.7,.3,1) both}
.stats .stat:nth-child(1){animation-delay:.08s}
.stats .stat:nth-child(2){animation-delay:.14s}
.stats .stat:nth-child(3){animation-delay:.20s}
.stats .stat:nth-child(4){animation-delay:.26s}
.bar > span{transition:width .8s cubic-bezier(.2,.7,.3,1)}
.btn,.icon-btn,.log li,.pill{transition:transform .12s ease, opacity .12s ease, box-shadow .12s ease}
.log li:active{transform:scale(.985)}
.tab{transition:color .15s ease}
.tab-icon{transition:transform .18s cubic-bezier(.3,1.6,.5,1), opacity .15s}
.tab:active .tab-icon{transform:scale(1.25)}
@keyframes toastIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
.toast{animation:toastIn .35s ease both}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ============ BOTTOM-SHEET MODALS ============ */
body.no-scroll{overflow:hidden}
.sheet-backdrop{
  position:fixed;inset:0;z-index:50;
  background:rgba(0,0,0,.45);
  display:flex;align-items:flex-end;justify-content:center;
  opacity:0;pointer-events:none;
  transition:opacity .28s ease;
}
.sheet-backdrop.open{opacity:1;pointer-events:auto}
.sheet{
  width:100%;max-width:440px;max-height:88vh;overflow-y:auto;
  background:var(--paper);
  border-radius:22px 22px 0 0;
  padding:10px 20px calc(24px + env(safe-area-inset-bottom));
  transform:translateY(100%);
  transition:transform .32s cubic-bezier(.2,.8,.25,1);
  box-shadow:0 -12px 40px rgba(0,0,0,.18);
}
.sheet-backdrop.open .sheet{transform:translateY(0)}
.sheet-handle{
  width:42px;height:4px;border-radius:99px;background:var(--line);
  margin:6px auto 12px;
}
.sheet-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.sheet-title{font-size:17px;font-weight:900;letter-spacing:-.3px}
.sheet-x{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);
  background:var(--paper);color:var(--muted);font-size:14px;cursor:pointer;
}

/* Floating action button */
.fab{
  position:sticky;bottom:88px;z-index:30;
  margin-left:auto;margin-right:4px;
  width:58px;height:58px;border-radius:18px;border:none;cursor:pointer;
  background:var(--ink);color:var(--on-ink);font-size:26px;font-weight:400;line-height:1;
  display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(0,0,0,.28);
  transition:transform .15s cubic-bezier(.3,1.6,.5,1);
}
.fab:active{transform:scale(.92)}

/* ============ CHARTS (monochrome SVG) ============ */
.chart-card svg{display:block;width:100%;height:auto}
.chart-grid{stroke:var(--line);stroke-width:1}
.chart-axis{fill:var(--muted);font-size:10px;font-weight:600}
.chart-line{fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.chart-area{fill:var(--ink-soft)}
.chart-dot{fill:var(--ink)}
.chart-dot-ring{fill:var(--paper);stroke:var(--ink);stroke-width:2}
.chart-bar{fill:var(--ink);rx:3}
.chart-bar-muted{fill:var(--bar-muted);rx:3}
.chart-target{stroke:var(--muted);stroke-width:1.5;stroke-dasharray:4 4}
.chart-label{fill:var(--ink);font-size:10px;font-weight:800}
@keyframes chartIn{from{opacity:0}to{opacity:1}}
.chart-card svg{animation:chartIn .6s ease .2s both}

/* ============ PROGRESS PHOTOS / VIDEOS ============ */
.media-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.media-item{
  position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);
  background:var(--fill);aspect-ratio:3/4;
  animation:fadeUp .45s cubic-bezier(.2,.7,.3,1) both;
}
.media-item img,.media-item video{width:100%;height:100%;object-fit:cover;display:block}
.media-item .media-date{
  position:absolute;left:8px;bottom:8px;right:8px;
  font-size:11px;font-weight:800;color:#fff;
  text-shadow:0 1px 6px rgba(0,0,0,.8);
  display:flex;justify-content:space-between;align-items:center;
}
.media-item .media-week{
  background:rgba(0,0,0,.55);border-radius:99px;padding:3px 8px;backdrop-filter:blur(4px);
}
.media-note{font-size:12px;color:var(--muted);margin-top:6px}
/* photos keep their real colors — exempt from the grayscale filter */
.media-item img,.media-item video{filter:none}

/* Theme toggle button */
.appbar-actions{display:flex;gap:8px;align-items:center}

/* ============ HOVER POLISH (desktop + trackpad) ============ */
.btn{transition:transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s ease, opacity .15s ease, background .18s ease, color .18s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.22)}
.btn.ghost:hover{background:var(--ink);color:var(--on-ink)}
.btn:active{transform:translateY(0) scale(.98);box-shadow:none}

.icon-btn{transition:transform .18s cubic-bezier(.3,1.4,.5,1), border-color .18s ease, background .18s ease, color .18s ease;cursor:pointer}
.icon-btn:hover{transform:scale(1.08);border-color:var(--ink)}
.icon-btn:active{transform:scale(.94)}
#theme-btn{transition:transform .35s cubic-bezier(.3,1.4,.5,1), border-color .18s ease}
#theme-btn:hover{transform:rotate(180deg) scale(1.08);border-color:var(--ink)}

.fab{transition:transform .2s cubic-bezier(.3,1.6,.5,1), box-shadow .2s ease}
.fab:hover{transform:scale(1.1) rotate(90deg);box-shadow:0 12px 32px rgba(0,0,0,.38)}
.fab:active{transform:scale(.92) rotate(90deg)}

.card,.stat{transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s ease, border-color .22s ease}
.card:hover,.stat:hover{transform:translateY(-2px);border-color:var(--faint);box-shadow:0 10px 26px rgba(0,0,0,.10)}
html[data-theme="dark"] .card:hover,html[data-theme="dark"] .stat:hover{box-shadow:0 10px 26px rgba(0,0,0,.5)}

.log li{transition:transform .18s ease, border-color .18s ease, box-shadow .18s ease}
.log li:hover{transform:translateX(4px);border-color:var(--faint)}

.pill{transition:transform .15s cubic-bezier(.3,1.4,.5,1)}
.row:hover .pill{transform:scale(1.06)}

.tab{transition:color .18s ease, transform .18s ease}
.tab:hover{color:var(--ink)}
.tab:hover .tab-icon{transform:translateY(-3px) scale(1.15);opacity:1}

input:hover,select:hover,textarea:hover{border-color:var(--faint)}
a.plain:hover,.logout-link:hover{color:var(--ink)}
.sheet-x{transition:transform .15s ease, border-color .15s ease, color .15s ease}
.sheet-x:hover{transform:rotate(90deg);border-color:var(--ink);color:var(--ink)}

.media-item{transition:transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s ease}
.media-item:hover{transform:scale(1.03);box-shadow:0 12px 30px rgba(0,0,0,.25);z-index:2}

.hero{transition:transform .25s cubic-bezier(.2,.7,.3,1)}
.hero:hover{transform:scale(1.008)}

/* shimmer on progress bars when they update */
@keyframes barPulse{0%{opacity:.7}50%{opacity:1}100%{opacity:.7}}
.bar > span[style*="width:100%"]{animation:barPulse 2s ease infinite}

/* ============ LUXE B&W ============ */

/* Hero: dot-grid texture + periodic light sweep + bigger type */
.hero{--shine:rgba(255,255,255,.14)}
html[data-theme="dark"] .hero{--shine:rgba(0,0,0,.12)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:radial-gradient(var(--hero-dim) 1px, transparent 1.4px);
  background-size:16px 16px;
}
.hero::after{
  content:"";position:absolute;top:0;bottom:0;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent,var(--shine),transparent);
  transform:skewX(-12deg);
  animation:heroSweep 4.2s cubic-bezier(.4,0,.2,1) 1.2s infinite;
  pointer-events:none;
}
@keyframes heroSweep{0%{left:-70%}55%{left:130%}100%{left:130%}}
.hero h2{font-size:38px;letter-spacing:-1.5px}
.hero > *{position:relative;z-index:1}
.hero::after{z-index:2}

/* Ring dials */
.ring{width:104px;height:104px;display:block;margin:0 auto}
.ring-track{fill:none;stroke:var(--fill);stroke-width:9}
.ring-fg{
  fill:none;stroke:var(--ink);stroke-width:9;stroke-linecap:round;
  transform:rotate(-90deg);transform-origin:55px 55px;
  animation:ringDraw 1.2s cubic-bezier(.2,.7,.3,1) .3s both;
}
@keyframes ringDraw{from{stroke-dashoffset:263.9}}
.ring-center{fill:var(--ink);font-size:22px;font-weight:900;letter-spacing:-1px}
.ring-sub{fill:var(--muted);font-size:9px;font-weight:800;letter-spacing:.8px;text-transform:uppercase}
.stat.ring-stat{text-align:center;padding:14px 10px}
.stat.ring-stat .k{justify-content:center;margin-bottom:8px}

/* 7-day dot tracker */
.day-dots{display:flex;gap:8px;justify-content:space-between;margin-top:14px}
.dot{
  flex:1;aspect-ratio:1;max-width:44px;border-radius:50%;
  border:2px solid var(--line);display:grid;place-items:center;
  font-size:11px;font-weight:800;color:var(--faint);
  transition:transform .2s cubic-bezier(.3,1.6,.5,1), background .2s, border-color .2s, color .2s;
  animation:fadeUp .4s ease both;
}
.day-dots .dot:nth-child(1){animation-delay:.05s}
.day-dots .dot:nth-child(2){animation-delay:.1s}
.day-dots .dot:nth-child(3){animation-delay:.15s}
.day-dots .dot:nth-child(4){animation-delay:.2s}
.day-dots .dot:nth-child(5){animation-delay:.25s}
.day-dots .dot:nth-child(6){animation-delay:.3s}
.day-dots .dot:nth-child(7){animation-delay:.35s}
.dot.on{background:var(--ink);border-color:var(--ink);color:var(--on-ink);transform:scale(1.06)}
.dot.now:not(.on){border-color:var(--ink);color:var(--ink);border-style:dashed;animation:dotPulse 1.8s ease infinite}
@keyframes dotPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
.dot:hover{transform:scale(1.15)}

/* Confetti */
.confetti{
  position:absolute;top:-12px;z-index:60;pointer-events:none;
  animation:confettiFall 1.4s cubic-bezier(.3,.4,.6,1) both;
}
@keyframes confettiFall{
  0%{transform:translateY(0) rotate(0deg);opacity:1}
  100%{transform:translateY(105vh) rotate(560deg);opacity:.6}
}

/* Bigger stat numbers */
.stat .v{font-size:30px}