:root{
  color-scheme:dark;
  --bg:#0b0b0c;--panel:#151517;--panel2:#1d1d20;--panel3:#242428;--line:#303034;
  --text:#f5f3ef;--muted:#9c9ca2;--accent:#d7193f;--accent-hi:#f02a4e;--accent-soft:#34131b;
  --stone:#e7dfd5;--stone2:#f4efe9;--ink:#111113;--danger:#ff667a;--warn:#f0b95d;
  --radius:18px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif
}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body{margin:0;background:var(--bg);color:var(--text);min-height:100%}body{padding-bottom:max(92px,env(safe-area-inset-bottom));background-image:radial-gradient(circle at 82% -10%,#58132255,transparent 28%),linear-gradient(180deg,#0b0b0c,#0e0e10 45%,#0b0b0c)}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}.app-shell{max-width:860px;margin:auto;min-height:100vh}

/* Thương hiệu */
.topbar{position:sticky;top:0;z-index:20;display:block;padding:16px 16px 12px;background:linear-gradient(180deg,#0b0b0c 84%,#0b0b0c00);text-align:center}.brand-copy{min-width:0;width:100%;text-align:center}.system-title{font-weight:950;font-size:clamp(20px,3vw,30px);letter-spacing:-.015em;line-height:1.08;text-align:center;white-space:nowrap}.gym-sign{display:flex;align-items:center;flex-wrap:wrap;gap:4px;margin-top:8px;padding:10px 12px;border-radius:13px;background:linear-gradient(135deg,var(--stone),var(--stone2));box-shadow:inset 0 0 0 1px #fff8,0 6px 24px #0005;color:var(--ink);justify-content:center}.gym-sign b{font-weight:950;color:#0c0c0d;letter-spacing:.035em}.gym-sign strong{font-weight:950;color:var(--accent);letter-spacing:.035em}.gym-sign span{font-weight:750;color:#474248}.gym-sign.compact{font-size:clamp(11px,1.8vw,14px);padding:7px 12px;width:max-content;max-width:100%;margin:8px auto 0}.page-title{margin-top:8px;color:var(--muted);font-size:12px;font-weight:800;text-align:center}
main{padding:5px 16px 30px}section{margin-bottom:16px}.eyebrow{font-size:11px;letter-spacing:.14em;color:#b4b1b0;font-weight:900}

/* Khối / nút */
.hero{padding:24px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(145deg,#1b1b1e,#111113);box-shadow:0 12px 40px #0004}.hero.accent,.today-card{border-color:#6e2030;box-shadow:inset 0 0 70px #d7193f0d,0 12px 40px #0004}.hero h2{font-size:30px;margin:7px 0}.hero p{color:var(--muted)}.card{background:linear-gradient(145deg,#171719,#141416);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:0 9px 30px #0002}.card h3{margin:0 0 12px}.btn{border:0;border-radius:13px;padding:12px 16px;cursor:pointer;font-weight:850;text-decoration:none;text-align:center;display:inline-flex;justify-content:center;align-items:center;min-height:44px}.btn.primary{background:linear-gradient(180deg,var(--accent-hi),var(--accent));color:white;box-shadow:0 7px 18px #d7193f2e}.btn.ghost{background:var(--panel2);color:var(--text);border:1px solid var(--line)}.btn.danger{background:#30131a;color:#ffb9c3;border:1px solid #5b202d}.btn.small{padding:8px 12px;min-height:38px;border-radius:10px}.btn.full{width:100%}.icon-btn{width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:var(--panel);color:var(--text);display:inline-flex;align-items:center;justify-content:center;text-decoration:none;cursor:pointer;flex:none}.icon-btn:hover,.btn.ghost:hover{border-color:#4a4a50}.toolbar,.row{display:flex;align-items:center}.toolbar{gap:8px;overflow:auto;padding-bottom:2px}.gap{gap:8px}.grow{flex:1}.empty{border:1px dashed #3a3a3f;border-radius:16px;padding:20px;color:var(--muted);text-align:center;background:#111113}

/* Điều hướng */
.bottom-nav{position:fixed;z-index:40;left:50%;bottom:max(8px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(calc(100% - 18px),820px);display:grid;grid-template-columns:repeat(6,1fr);gap:4px;padding:7px;border:1px solid var(--line);background:#111113ec;backdrop-filter:blur(18px);border-radius:21px;box-shadow:0 12px 40px #000a}.bottom-nav a{color:var(--muted);text-decoration:none;display:flex;flex-direction:column;align-items:center;padding:7px 3px;border-radius:14px;font-size:10px;gap:2px;min-width:0}.bottom-nav b{font-size:20px;line-height:1}.bottom-nav a.active{background:#2a141a;color:#ff7188}.bottom-nav span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}

/* Trang chủ */
.today-routine{display:flex;align-items:center;gap:14px;margin:12px 0 15px}.today-routine h2{margin:0}.today-routine p{margin:3px 0 0}.routine-badge{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;background:var(--accent);color:#fff;font-weight:950;box-shadow:0 8px 20px #d7193f3d;flex:none}.compact-label{margin:0 0 10px;font-size:11px;color:var(--muted)}.compact-label select{margin-top:5px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat-grid.two{grid-template-columns:repeat(2,1fr)}.stat{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:14px;min-width:0}.stat.featured{border-color:#6e2030;background:linear-gradient(145deg,#2b141a,#171719)}.stat span,.stat small{display:block;color:var(--muted);font-size:12px}.stat strong{display:block;font-size:23px;margin:6px 0;overflow:hidden;text-overflow:ellipsis}.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:18px 2px 9px}.section-title h3{margin:0}.section-title a{color:#ff6981;text-decoration:none;font-size:13px}.progress-snapshot{display:flex;justify-content:space-between;align-items:center;gap:14px}.progress-snapshot span,.progress-snapshot small{display:block;color:var(--muted);font-size:12px}.progress-snapshot strong{font-size:31px}.progress-snapshot a{color:#ff7188;text-decoration:none;font-weight:800;font-size:13px}.progression-card{display:flex;justify-content:space-between;align-items:center;gap:12px}.progression-card p{color:var(--muted);font-size:13px;margin:5px 0}.weight-confirm{display:flex;gap:6px;max-width:235px}

/* Kế hoạch */
#routine-list{display:flex;flex-direction:column;gap:10px}.routine-card{margin:0;position:relative;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;transition:transform .15s,border-color .15s,opacity .15s}.routine-card.expanded{border-color:#4b3137}.routine-card.dragging{opacity:.75;transform:scale(.99);border-color:var(--accent);z-index:10}.routine-summary{display:flex;align-items:center;gap:10px}.routine-summary h3{margin:0}.routine-summary small{color:var(--muted)}.drag-handle{width:36px;height:44px;border:0;background:transparent;color:#77777d;font-size:23px;cursor:grab;touch-action:none}.drag-handle:active{cursor:grabbing;color:#fff}.routine-body{padding-top:12px;margin-top:12px;border-top:1px solid var(--line)}.routine-item{display:flex;align-items:center;gap:10px;padding:12px 0;border-top:1px solid #27272b;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.routine-item:first-child{border-top:0}.routine-item p{margin:4px 0;color:var(--muted);font-size:13px}.index,.set-no{width:32px;height:32px;border-radius:10px;background:var(--panel2);border:1px solid var(--line);color:var(--text);display:grid;place-items:center}.delete-hint{display:block;text-align:center;color:#707077;font-size:11px;margin-top:10px}.hint{color:var(--muted);font-size:12px}

/* Workout */
.workout-head,.routine-head,.exercise-title{display:flex;justify-content:space-between;align-items:center;gap:10px}.workout-head{padding:8px 2px 16px}.workout-head h2,.exercise-title h3{margin:0}.workout-head small,.exercise-title small{color:var(--muted)}.workout-ex{padding:15px}.note{background:#211b1d;border:1px solid #3e282e;border-radius:12px;padding:10px;color:#d9d4d2}.set-table{margin:14px -4px}.set-row{display:grid;grid-template-columns:40px 86px 1fr 1fr 42px;gap:6px;align-items:center;padding:5px 0}.set-row.head{font-size:10px;color:var(--muted);font-weight:900;text-align:center}.set-row.done{opacity:.78}.set-row.done input{background:#28151a;border-color:#59303a}.set-type{text-align:center;font-size:9px;color:#b4afb0;font-weight:800}.set-row input{text-align:center;padding:10px 5px}.check{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:var(--panel2);color:#ff6b84;font-size:20px}.set-row.done .check{background:var(--accent);color:white;border-color:var(--accent)}

/* Form */
input,select,textarea{width:100%;font-size:16px;background:#0f0f11;border:1px solid var(--line);color:var(--text);border-radius:11px;padding:11px 12px;outline:none}input:focus,select:focus,textarea:focus{border-color:#9a2940;box-shadow:0 0 0 3px #d7193f18}textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}label{display:block;color:#d0ccca;font-size:13px;margin-bottom:12px}label input,label select,label textarea{margin-top:6px}.toggle-row{display:flex;justify-content:space-between;align-items:center;gap:12px}.toggle-row small{display:block;color:var(--muted);margin-top:3px}.toggle-row input,.check-row input{width:22px;height:22px;accent-color:var(--accent)}.check-row{display:flex;align-items:center;gap:10px}.check-row input{margin:0;flex:none}.check-row span{color:var(--muted)}

/* Lịch sử */
.session-row{width:100%;display:flex;justify-content:space-between;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:15px;color:var(--text);padding:14px;margin-bottom:8px;text-align:left;cursor:pointer}.session-row div{display:flex;flex-direction:column;gap:3px}.session-row div:last-child{text-align:right}.session-row span{font-size:12px;color:var(--muted)}.month h3{color:var(--muted);font-size:13px}.history-set{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line)}.history-set:first-of-type{border-top:0}.history-set span{color:var(--muted)}.calendar .section-title{margin-top:0}.cal-week,.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.cal-week span{text-align:center;color:var(--muted);font-size:11px;padding:4px}.cal-cell{aspect-ratio:1;border:1px solid var(--line);border-radius:12px;background:#0f0f11;color:var(--muted);display:flex;align-items:center;justify-content:center;position:relative}.cal-cell.blank{visibility:hidden}.cal-cell.trained{color:var(--text);background:#32131c;border-color:#682135;cursor:pointer}.cal-cell.trained i{position:absolute;width:6px;height:6px;background:#ff5e78;border-radius:50%;bottom:7px}.cal-cell.trained em{position:absolute;top:4px;right:5px;min-width:16px;height:16px;padding:0 4px;border-radius:8px;background:var(--accent);color:#fff;font-size:9px;font-style:normal;display:grid;place-items:center}.calendar-head{display:grid;grid-template-columns:42px 1fr 42px;align-items:center;gap:10px;margin-bottom:10px}.calendar-head>div{text-align:center}.calendar-head h3{margin:0;text-transform:capitalize}.calendar-head small{color:var(--muted)}.history-edit span{text-align:center}

/* Tiến bộ */
.segmented{display:grid;grid-template-columns:1fr 1fr;padding:4px;background:#111113;border:1px solid var(--line);border-radius:14px}.segmented button{border:0;border-radius:10px;background:transparent;color:var(--muted);font-weight:850;padding:10px}.segmented button.active{background:#32131c;color:#ff7b90}.progress-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px}.progress-controls label{margin:0}.chart-card canvas{width:100%;height:auto;background:linear-gradient(180deg,#101012,#0d0d0f);border-radius:14px;border:1px solid #222226}.progress-row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line)}.progress-row:first-of-type{border-top:0}.progress-row b{white-space:nowrap}.progress-row em{font-style:normal;color:#ff738a;font-size:12px;margin-left:5px}

/* Cài đặt */
.profile-card{display:flex;justify-content:space-between;align-items:center;gap:12px}.profile-card span,.profile-card small{display:block;color:var(--muted);font-size:12px}.profile-card h3{margin:4px 0}.file-btn{position:relative}.file-btn input{position:absolute;inset:0;opacity:0;cursor:pointer}hr{border:0;border-top:1px solid var(--line);margin:16px 0}

/* Modal */
.modal{width:min(92vw,520px);max-height:88vh;overflow:auto;border:1px solid #3b3b40;border-radius:20px;padding:0;background:#151517;color:var(--text);box-shadow:0 30px 90px #000c}.modal::backdrop{background:#000b;backdrop-filter:blur(4px)}.modal-head{position:sticky;top:0;z-index:2;display:flex;justify-content:space-between;align-items:center;padding:16px 18px 10px;background:#151517}.modal-head h3{margin:0}.modal-x{width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:var(--panel2);color:var(--text);font-size:22px}.modal-body{padding:8px 18px 2px}.modal-actions{position:sticky;bottom:0;display:flex;justify-content:flex-end;gap:8px;padding:12px 18px 18px;background:linear-gradient(transparent,#151517 22%)}

/* Đăng nhập local */
.profile-gate{max-width:600px;margin:0 auto;padding:22px 14px 60px;min-height:100vh}.brand-panel{position:relative;overflow:hidden;padding:24px 18px 18px;border-radius:27px;border:1px solid #493137;background:radial-gradient(circle at 50% 105%,#d7193f2a,transparent 40%),radial-gradient(circle at 100% 0,#6a172a55,transparent 36%),linear-gradient(145deg,#1a1a1d,#0f0f11);box-shadow:0 22px 70px #0009,inset 0 1px #ffffff12;text-align:center}.brand-panel:before{content:'';position:absolute;inset:0;background:linear-gradient(115deg,transparent 22%,#ffffff08 42%,transparent 62%);pointer-events:none}.brand-kicker{position:relative;z-index:1;font-size:clamp(15px,4.55vw,30px);font-weight:950;line-height:1.08;letter-spacing:-.035em;text-align:center;white-space:nowrap;text-shadow:0 0 24px #d7193f33}.brand-panel .gym-sign{position:relative;z-index:1;margin:12px auto 4px;font-size:clamp(11px,3.3vw,15px);width:max-content;max-width:100%}.brand-panel .profile-sign{flex-wrap:nowrap;white-space:nowrap;padding:8px 10px}.athlete-glow{position:relative;z-index:1;height:118px;margin:2px auto -2px;display:flex;align-items:center;justify-content:center}.athlete-glow svg{width:min(100%,440px);height:100%;overflow:visible}.brand-note{position:relative;z-index:1;color:#c3bdba!important;margin:0!important;text-align:center;font-size:12px}.auth-card{margin-top:14px}.auth-card h2{margin:0 0 15px;font-size:20px}

#toast-root{position:fixed;z-index:100;top:16px;left:50%;transform:translateX(-50%);width:min(92%,460px)}.toast{margin-bottom:8px;background:#2d151b;border:1px solid #7a283a;border-radius:14px;padding:12px 15px;box-shadow:0 8px 30px #0008}.toast.error{background:#3b151b;border-color:#a3384d}

@media(max-width:560px){
  .system-title{font-size:clamp(18px,4.8vw,21px)}.gym-sign.compact{font-size:11px}.page-title{font-size:11px}.topbar{padding-left:12px;padding-right:12px}main{padding-left:12px;padding-right:12px}.hero{padding:19px}.hero h2{font-size:27px}.form-grid{grid-template-columns:1fr 1fr}.stat-grid{grid-template-columns:repeat(3,1fr)}.stat{padding:11px}.stat strong{font-size:18px}.progression-card{align-items:stretch;flex-direction:column}.weight-confirm{max-width:none}.set-row{grid-template-columns:34px 68px 1fr 1fr 38px;gap:4px}.set-type{font-size:8px}.progress-controls{grid-template-columns:1fr 1fr}.cal-grid,.cal-week{gap:4px}.cal-cell{border-radius:9px}.routine-card{padding:13px}.routine-summary{gap:7px}.routine-badge{width:43px;height:43px;border-radius:13px}.drag-handle{width:28px}.progress-snapshot{align-items:flex-end}.progress-snapshot strong{font-size:27px}
}
@media(max-width:390px){.bottom-nav{width:calc(100% - 10px);gap:2px;padding:5px}.bottom-nav span{font-size:8px}.bottom-nav b{font-size:18px}.form-grid{grid-template-columns:1fr}.set-row{grid-template-columns:32px 58px 1fr 1fr 36px}.stat-grid{gap:5px}.stat{padding:9px}.stat span{font-size:10px}.system-title{font-size:17px}.gym-sign.compact{font-size:10.5px}}

@media(max-width:420px){.profile-gate{padding-left:9px;padding-right:9px}.brand-panel{padding-left:8px;padding-right:8px}.brand-kicker{font-size:clamp(14px,4.45vw,18px)}.brand-panel .profile-sign{font-size:clamp(10px,3vw,12px);gap:3px}.athlete-glow{height:104px}.brand-note{font-size:11px}.bottom-nav a{padding-left:1px;padding-right:1px}}