@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#080810;--bg2:rgba(255,255,255,0.03);--bg3:rgba(255,255,255,0.06);--border:rgba(255,255,255,0.08);--text:#f0f0f5;--text2:#a0a0b8;--text3:#606078;--primary:#f43f5e;--primary-g:linear-gradient(135deg,#f43f5e,#fb923c);--accent:#06b6d4;--green:#22c55e;--yellow:#eab308;--r:16px;--r2:24px;--r3:9999px;--tr:all .3s cubic-bezier(.4,0,.2,1)}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;min-height:100vh}
::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(244,63,94,.3);border-radius:var(--r3)}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes glow{0%,100%{box-shadow:0 0 20px rgba(244,63,94,.3)}50%{box-shadow:0 0 40px rgba(244,63,94,.5)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes ring{0%{stroke-dashoffset:283}100%{stroke-dashoffset:0}}
@keyframes countUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes orbFloat{0%,100%{transform:translate(0,0)}25%{transform:translate(30px,-20px)}50%{transform:translate(-20px,15px)}75%{transform:translate(15px,25px)}}
.anim{animation:fadeUp .6s ease-out both}
.anim1{animation-delay:.1s}.anim2{animation-delay:.2s}.anim3{animation-delay:.3s}.anim4{animation-delay:.4s}.anim5{animation-delay:.5s}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--r);font-size:15px;font-weight:700;font-family:inherit;cursor:pointer;border:none;transition:var(--tr);text-decoration:none;position:relative;overflow:hidden}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--primary-g);color:#fff;box-shadow:0 0 20px rgba(244,63,94,.3)}
.btn-primary:hover{box-shadow:0 0 30px rgba(244,63,94,.5);transform:translateY(-2px)}
.btn-secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:rgba(255,255,255,.1)}
.btn-ghost{background:transparent;color:var(--text2)}.btn-ghost:hover{color:var(--text);background:var(--bg2)}
.btn-lg{padding:16px 32px;font-size:17px;border-radius:var(--r)}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:12px}
.btn-full{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}

/* CARDS */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);padding:24px;transition:var(--tr);backdrop-filter:blur(10px)}
.card:hover{border-color:rgba(255,255,255,.12);background:var(--bg3)}
.card-glow:hover{box-shadow:0 0 30px rgba(244,63,94,.15);border-color:rgba(244,63,94,.3)}

/* FORMS */
.input{width:100%;padding:14px 18px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);color:var(--text);font-size:16px;font-family:inherit;outline:none;transition:var(--tr);-webkit-appearance:none}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(244,63,94,.1)}
.input::placeholder{color:var(--text3)}
.input-group{margin-bottom:20px}
.input-group label{display:block;font-size:13px;font-weight:600;color:var(--text2);margin-bottom:8px}
select.input{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a0a0b8'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
option{background:#111;color:#fff}

/* TOGGLE */
.toggle{width:48px;height:28px;background:rgba(255,255,255,.1);border-radius:var(--r3);position:relative;cursor:pointer;transition:var(--tr)}
.toggle::after{content:'';position:absolute;top:3px;left:3px;width:22px;height:22px;background:#fff;border-radius:50%;transition:var(--tr)}
.toggle.on{background:var(--primary)}.toggle.on::after{left:23px}

/* TAGS */
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r3);font-size:12px;font-weight:700;background:rgba(244,63,94,.1);color:var(--primary)}
.tag-green{background:rgba(34,197,94,.1);color:var(--green)}
.tag-yellow{background:rgba(234,179,8,.1);color:var(--yellow)}
.tag-blue{background:rgba(6,182,212,.1);color:var(--accent)}

/* ORB BG */
.orb{position:fixed;border-radius:50%;filter:blur(100px);opacity:.12;pointer-events:none;z-index:0}
.orb1{width:500px;height:500px;background:#f43f5e;top:-200px;right:-200px;animation:orbFloat 20s ease-in-out infinite}
.orb2{width:400px;height:400px;background:#fb923c;bottom:-150px;left:-150px;animation:orbFloat 25s ease-in-out infinite reverse}
.orb3{width:300px;height:300px;background:#06b6d4;top:40%;left:40%;animation:orbFloat 30s ease-in-out infinite}

/* ONBOARDING */
.onboard{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;position:relative;z-index:1}
.onboard-card{width:100%;max-width:480px;animation:scaleIn .5s ease-out}
.onboard-icon{font-size:56px;margin-bottom:24px;display:block;text-align:center;animation:float 3s ease-in-out infinite}
.onboard-title{font-size:28px;font-weight:900;text-align:center;margin-bottom:8px;letter-spacing:-.5px}
.onboard-sub{text-align:center;color:var(--text2);margin-bottom:32px;font-size:15px}
.progress-bar{width:100%;height:4px;background:rgba(255,255,255,.08);border-radius:var(--r3);margin-bottom:40px;overflow:hidden}
.progress-fill{height:100%;background:var(--primary-g);border-radius:var(--r3);transition:width .5s ease}

/* PHOTO CAPTURE */
.camera-wrap{position:relative;width:100%;max-width:400px;aspect-ratio:3/4;margin:0 auto;border-radius:var(--r2);overflow:hidden;background:#111;border:3px solid var(--border)}
.camera-wrap video,.camera-wrap img{width:100%;height:100%;object-fit:cover}
.camera-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.body-frame{width:70%;height:85%;border:3px dashed rgba(255,255,255,.4);border-radius:var(--r2);display:flex;align-items:center;justify-content:center}
.body-frame-text{color:rgba(255,255,255,.6);font-size:13px;text-align:center;padding:16px}
.camera-btn{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);width:64px;height:64px;border-radius:50%;background:var(--primary-g);border:4px solid rgba(255,255,255,.3);cursor:pointer;z-index:2;transition:var(--tr)}
.camera-btn:hover{transform:translateX(-50%) scale(1.1)}

/* SLIDER */
.range-wrap{margin:20px 0}
.range-wrap input[type=range]{width:100%;height:6px;-webkit-appearance:none;background:rgba(255,255,255,.1);border-radius:var(--r3);outline:none}
.range-wrap input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;background:var(--primary-g);border-radius:50%;cursor:pointer;box-shadow:0 0 10px rgba(244,63,94,.5)}
.range-val{text-align:center;font-size:32px;font-weight:900;background:var(--primary-g);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-top:8px}

/* DASHBOARD */
.dashboard{display:flex;min-height:100vh}
.sidebar{width:260px;background:rgba(8,8,16,.98);border-right:1px solid var(--border);position:fixed;top:0;left:0;bottom:0;z-index:50;display:flex;flex-direction:column;backdrop-filter:blur(20px)}
.sidebar-logo{padding:20px 24px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text);font-weight:900;font-size:20px}
.sidebar-logo .logo-icon{width:36px;height:36px;background:var(--primary-g);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900;color:#fff}
.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.side-link{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;color:var(--text2);text-decoration:none;font-size:14px;font-weight:500;transition:var(--tr)}
.side-link:hover{background:var(--bg2);color:var(--text)}
.side-link.active{background:rgba(244,63,94,.1);color:var(--primary)}
.side-link .icon{font-size:18px;width:22px;text-align:center}
.sidebar-bottom{padding:16px;border-top:1px solid var(--border)}
.sidebar-user{display:flex;align-items:center;gap:12px;cursor:pointer;padding:8px;border-radius:12px;transition:var(--tr)}
.sidebar-user:hover{background:var(--bg2)}
.sidebar-avatar{width:40px;height:40px;border-radius:12px;background:var(--primary-g);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#fff;flex-shrink:0}
.sidebar-user-info{flex:1;min-width:0}
.sidebar-user-name{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-user-email{font-size:12px;color:var(--text3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main-content{flex:1;margin-left:260px;padding:32px}
.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.page-head h1{font-size:28px;font-weight:900;letter-spacing:-.5px}

/* STATS */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px}
.stat-card{text-align:center;padding:20px}
.stat-card .val{font-size:32px;font-weight:900;background:var(--primary-g);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-card .label{font-size:12px;color:var(--text3);margin-top:4px}
.stat-card .icon{font-size:28px;margin-bottom:8px;display:block}

/* RING */
.ring-wrap{position:relative;width:120px;height:120px;margin:0 auto}
.ring-wrap svg{transform:rotate(-90deg)}
.ring-wrap circle{fill:none;stroke-width:8;stroke-linecap:round}
.ring-bg{stroke:rgba(255,255,255,.08)}
.ring-fill{stroke:url(#ringGrad);transition:stroke-dashoffset 1s ease}
.ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring-val{font-size:28px;font-weight:900}
.ring-label{font-size:11px;color:var(--text3)}

/* WORKOUT CARD */
.workout-card{display:flex;gap:16px;padding:16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);cursor:pointer;transition:var(--tr);align-items:center}
.workout-card:hover{border-color:rgba(244,63,94,.3);background:var(--bg3)}
.workout-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}
.workout-info{flex:1}
.workout-info h4{font-size:15px;font-weight:700;margin-bottom:2px}
.workout-info p{font-size:13px;color:var(--text3)}
.workout-meta{display:flex;gap:12px;margin-top:6px}
.workout-meta span{font-size:12px;color:var(--text2);display:flex;align-items:center;gap:4px}

/* WORKOUT VIEWER */
.workout-view{position:fixed;inset:0;background:var(--bg);z-index:100;display:flex;flex-direction:column;overflow-y:auto}
.workout-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:rgba(8,8,16,.95);backdrop-filter:blur(20px);z-index:2}
.workout-body{flex:1;padding:20px;max-width:600px;margin:0 auto;width:100%}
.exercise-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;margin-bottom:16px;animation:fadeUp .5s ease-out both}
.exercise-visual{height:200px;display:flex;align-items:center;justify-content:center;font-size:80px;position:relative}
.exercise-visual::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,var(--bg),transparent 50%)}
.exercise-body{padding:20px}
.exercise-name{font-size:20px;font-weight:800;margin-bottom:4px}
.exercise-muscle{font-size:13px;color:var(--primary);margin-bottom:12px}
.exercise-steps{list-style:none;counter-reset:step}
.exercise-steps li{counter-increment:step;padding:8px 0 8px 36px;position:relative;font-size:14px;color:var(--text2);border-bottom:1px solid rgba(255,255,255,.04)}
.exercise-steps li::before{content:counter(step);position:absolute;left:0;width:24px;height:24px;background:rgba(244,63,94,.1);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--primary)}
.timer-display{text-align:center;padding:32px}
.timer-val{font-size:72px;font-weight:900;background:var(--primary-g);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.timer-label{font-size:14px;color:var(--text2);margin-top:8px}
.rest-timer{animation:breathe 2s ease-in-out infinite}
.set-info{display:flex;justify-content:center;gap:24px;margin-top:16px}
.set-info div{text-align:center}
.set-info .num{font-size:24px;font-weight:800}
.set-info .lbl{font-size:11px;color:var(--text3)}

/* AI FORM CHECK */
.ai-panel{position:fixed;bottom:0;left:0;right:0;background:rgba(8,8,16,.98);border-top:1px solid var(--border);padding:20px;z-index:101;animation:slideUp .4s ease-out}
.ai-msg{display:flex;gap:12px;margin-bottom:12px}
.ai-avatar{width:36px;height:36px;border-radius:10px;background:var(--primary-g);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#fff;flex-shrink:0}
.ai-bubble{padding:12px 16px;background:var(--bg2);border:1px solid var(--border);border-radius:14px;font-size:14px;line-height:1.6;color:var(--text2);max-width:85%}
.ai-bubble.good{border-color:rgba(34,197,94,.3);background:rgba(34,197,94,.05)}
.ai-bubble.warn{border-color:rgba(234,179,8,.3);background:rgba(234,179,8,.05)}
.ai-bubble.bad{border-color:rgba(244,63,94,.3);background:rgba(244,63,94,.05)}

/* PROGRESS */
.progress-ring{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
.prog-item{text-align:center;width:100px}
.prog-item .ring-val{font-size:20px}
.chart-bar{display:flex;align-items:end;gap:4px;height:120px;padding:16px 0}
.chart-bar .bar{flex:1;background:var(--primary-g);border-radius:4px 4px 0 0;min-height:4px;transition:height .5s ease;position:relative}
.chart-bar .bar::after{content:attr(data-val);position:absolute;top:-20px;left:50%;transform:translateX(-50%);font-size:10px;color:var(--text3);white-space:nowrap}
.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.week-day{text-align:center;padding:12px 8px;border-radius:12px;background:var(--bg2);border:1px solid var(--border);font-size:12px}
.week-day.done{background:rgba(34,197,94,.1);border-color:rgba(34,197,94,.3)}
.week-day.today{border-color:var(--primary);box-shadow:0 0 10px rgba(244,63,94,.2)}
.week-day .day-name{font-weight:600;margin-bottom:4px}
.week-day .day-icon{font-size:18px}

/* EMPTY */
.empty{text-align:center;padding:60px 20px;color:var(--text3)}
.empty-icon{font-size:48px;margin-bottom:16px;opacity:.5}
.empty h3{color:var(--text2);margin-bottom:8px}

/* DIALOG */
.dialog-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:200;padding:24px}
.dialog{background:rgba(15,15,20,.98);border:1px solid var(--border);border-radius:var(--r2);padding:32px;width:100%;max-width:480px;animation:scaleIn .3s ease-out}

/* NOTIF */
.notif{position:fixed;top:24px;right:24px;padding:14px 20px;background:rgba(15,15,20,.98);border:1px solid var(--border);border-radius:var(--r);font-size:14px;z-index:300;animation:slideUp .4s ease-out;backdrop-filter:blur(20px);max-width:360px}
.notif.ok{border-color:rgba(34,197,94,.3)}.notif.err{border-color:rgba(244,63,94,.3)}

/* RESPONSIVE */
@media(max-width:768px){
  .sidebar{display:none}
  .main-content{margin-left:0;padding:16px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .onboard{padding:16px}
  .onboard-title{font-size:24px}
  .workout-view{padding-bottom:80px}
  .ai-panel{padding:12px 16px}
}
@media(max-width:480px){
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-card .val{font-size:24px}
}

.hidden{display:none!important}