:root {
  --ink:#0f0f0f;--ink-2:#3a3a3a;--ink-3:#7a7a7a;--ink-4:#b8b8b8;
  --paper:#f7f5f0;--paper-2:#efede8;--paper-3:#e5e2db;
  --surface:white;
  --accent:#c8502a;--accent-light:rgba(200,80,42,0.08);
  --green:#2a7a4b;--green-light:rgba(42,122,75,0.1);
  --blue:#2a5aaa;--blue-light:rgba(42,90,170,0.08);
  --red-light:rgba(200,80,42,0.12);
  --radius:12px;
  --ease-out:cubic-bezier(0.16,1,0.3,1);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);
}
html.dark {
  --ink:#e6edf3;--ink-2:#c9d1d9;--ink-3:#8b949e;--ink-4:#484f58;
  --paper:#0d1117;--paper-2:#161b22;--paper-3:#30363d;
  --surface:#161b22;
  --accent:#f78166;--accent-light:rgba(247,129,102,0.12);
  --green:#3fb950;--green-light:rgba(63,185,80,0.12);
  --blue:#58a6ff;--blue-light:rgba(88,166,255,0.10);
  --red-light:rgba(247,129,102,0.14);
}

/* Theme toggle button */
.theme-toggle{width:32px;height:32px;border-radius:8px;border:1.5px solid var(--paper-3);background:transparent;color:var(--ink-3);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;transition:all 0.2s;flex-shrink:0}
.theme-toggle:hover{border-color:var(--ink-4);background:var(--paper-2);color:var(--ink)}

.auth-theme-btn{position:fixed;top:16px;right:16px;width:36px;height:36px;border-radius:10px;border:1.5px solid var(--paper-3);background:var(--surface);color:var(--ink-3);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all 0.2s;z-index:100}
.auth-theme-btn:hover{border-color:var(--ink-4);background:var(--paper-2);color:var(--ink)}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--paper);color:var(--ink);min-height:100vh;overflow-x:hidden}
body::after{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:9999;opacity:0.4}

/* ── LOADING SCREEN ── */
#loadingScreen{position:fixed;inset:0;background:var(--paper);z-index:99999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;transition:opacity 0.6s var(--ease-out),visibility 0.6s}
#loadingScreen.hidden{opacity:0;visibility:hidden;pointer-events:none}
.loading-logo{font-family:'DM Serif Display',serif;font-size:3.5rem;letter-spacing:-2px;display:flex;align-items:baseline;gap:6px;animation:logoIn 0.7s var(--ease-spring) forwards}
.loading-logo em{font-style:italic;color:var(--accent)}
@keyframes logoIn{from{opacity:0;transform:translateY(20px) scale(0.93)}to{opacity:1;transform:translateY(0) scale(1)}}
.loading-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;margin-bottom:6px;animation:pulse 2s ease-in-out infinite}
.loading-bar-track{width:100px;height:2.5px;background:var(--paper-3);border-radius:99px;overflow:hidden;opacity:0;animation:fadeIn 0.3s ease 0.4s forwards}
.loading-bar-fill{height:100%;width:0%;background:var(--accent);border-radius:99px;animation:loadFill 1.4s var(--ease-out) 0.5s forwards}
@keyframes loadFill{0%{width:0%}50%{width:70%}85%{width:92%}100%{width:100%}}
.loading-sub{font-size:0.65rem;font-weight:600;color:var(--ink-4);letter-spacing:2px;text-transform:uppercase;opacity:0;animation:fadeIn 0.4s ease 0.5s forwards}
@keyframes fadeIn{to{opacity:1}}

/* ── AUTH ── */
.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:20px;padding:40px 36px;width:100%;max-width:400px;box-shadow:0 24px 80px rgba(0,0,0,0.08);animation:cardRise 0.5s var(--ease-spring)}
@keyframes cardRise{from{opacity:0;transform:translateY(24px) scale(0.97)}to{opacity:1;transform:translateY(0) scale(1)}}
.auth-logo{font-family:'DM Serif Display',serif;font-size:2rem;letter-spacing:-1px;margin-bottom:4px;display:flex;align-items:baseline;gap:5px}
.auth-logo em{font-style:italic;color:var(--accent)}
.auth-sub{font-size:0.78rem;color:var(--ink-3);margin-bottom:28px}
.auth-invite-banner{background:var(--blue-light);border:1.5px solid rgba(42,90,170,0.2);border-radius:10px;padding:12px 14px;margin-bottom:20px;font-size:0.8rem;color:var(--blue)}
.field{margin-bottom:14px}
.field-label{display:block;font-size:0.63rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-4);margin-bottom:6px}
.field-input{font-family:'DM Sans',sans-serif;font-size:0.85rem;width:100%;padding:10px 13px;border-radius:8px;border:1.5px solid var(--paper-3);background:var(--paper);color:var(--ink);outline:none;transition:all 0.2s}
.field-input:focus{border-color:var(--ink-2);background:var(--surface);box-shadow:0 0 0 3px rgba(0,0,0,0.06)}
.auth-error{font-size:0.75rem;color:var(--accent);background:var(--red-light);border-radius:8px;padding:9px 12px;margin-bottom:14px;display:none}
.auth-error.show{display:block;animation:shake 0.3s ease}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.back-to-login{font-size:0.75rem;color:var(--ink-3);text-align:center;margin-top:12px;cursor:pointer;text-decoration:underline}

/* ── BUTTONS ── */
.btn{font-family:'DM Sans',sans-serif;font-size:0.75rem;font-weight:600;padding:8px 16px;border-radius:8px;border:1.5px solid transparent;cursor:pointer;transition:all 0.2s var(--ease-out);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;letter-spacing:0.2px}
.btn:disabled{opacity:0.5;pointer-events:none}
.btn-ghost{background:transparent;border-color:var(--paper-3);color:var(--ink-3)}
.btn-ghost:hover{border-color:var(--ink-4);color:var(--ink-2);background:var(--paper-2);transform:translateY(-1px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:white}
.btn-accent:hover{background:#b8421e;transform:translateY(-2px);box-shadow:0 6px 20px rgba(200,80,42,0.3)}
.btn-ink{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.btn-ink:hover{background:var(--ink-2);transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,0,0,0.2)}
.btn-blue{background:var(--blue);border-color:var(--blue);color:white}
.btn-blue:hover{background:#1a4a90;transform:translateY(-1px)}
.btn-green{background:var(--green);border-color:var(--green);color:white}
.btn-green:hover{background:#1a6a3b;transform:translateY(-1px)}
.btn-full{width:100%;justify-content:center;padding:11px;font-size:0.82rem}
.btn-sm{padding:5px 11px;font-size:0.68rem}
.btn-danger{background:transparent;border-color:var(--accent);color:var(--accent)}
.btn-danger:hover{background:var(--accent);color:white}

/* ── HEADER ── */
header{padding:24px 40px 0;display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.logo{font-family:'DM Serif Display',serif;font-size:1.9rem;letter-spacing:-1px;display:flex;align-items:baseline;gap:6px}
.logo em{font-style:italic;color:var(--accent)}
.logo-dot{width:6px;height:6px;background:var(--accent);border-radius:50%;margin-bottom:5px;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:0.6}}
.header-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.user-chip{font-size:0.72rem;font-weight:600;color:var(--ink-2);background:var(--paper-2);padding:6px 12px;border-radius:20px;display:flex;align-items:center;gap:6px}
.user-dot{width:7px;height:7px;border-radius:50%}
.dot-green{background:var(--green)}
.dot-blue{background:var(--blue)}
.dot-accent{background:var(--accent)}
.role-badge{font-size:0.6rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;padding:3px 8px;border-radius:20px}
.role-admin{background:rgba(200,80,42,0.12);color:var(--accent)}
.role-coach{background:var(--blue-light);color:var(--blue)}
.role-client{background:var(--green-light);color:var(--green)}
.sync-badge{font-size:0.65rem;font-weight:600;padding:4px 10px;border-radius:20px;transition:all 0.3s}
.sync-ok{background:var(--green-light);color:var(--green)}
.sync-pending{background:rgba(200,160,42,0.12);color:#8a6a10}
.sync-err{background:var(--red-light);color:var(--accent)}

/* ── LAYOUT ── */
.app{max-width:1100px;margin:0 auto;padding:28px 40px 100px}
.section-title{font-size:0.65rem;font-weight:600;letter-spacing:2.5px;text-transform:uppercase;color:var(--ink-4);margin-bottom:12px}

/* ── ADMIN / COACH DASHBOARD ── */
.dashboard-grid{display:grid;grid-template-columns:320px 1fr;gap:24px;align-items:start}
.panel{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:16px;overflow:hidden}
.panel-header{padding:18px 20px;border-bottom:1px solid var(--paper-3);display:flex;align-items:center;justify-content:space-between}
.panel-title{font-family:'DM Serif Display',serif;font-size:1.1rem}
.panel-body{padding:0}
.list-item{display:flex;align-items:center;gap:12px;padding:13px 20px;border-bottom:1px solid var(--paper-2);cursor:pointer;transition:background 0.15s}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:var(--paper)}
.list-item.active{background:var(--blue-light);border-right:3px solid var(--blue)}
.list-item-avatar{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;flex-shrink:0}
.avatar-coach{background:var(--blue-light);color:var(--blue)}
.avatar-client{background:var(--green-light);color:var(--green)}
.list-item-info{flex:1;min-width:0}
.list-item-name{font-size:0.85rem;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-item-meta{font-size:0.68rem;color:var(--ink-3);margin-top:2px}
.list-item-actions{display:flex;gap:5px;opacity:0;transition:opacity 0.15s}
.list-item:hover .list-item-actions{opacity:1}

/* Stats cards */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}
.stat-card{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:12px;padding:16px 18px}
.stat-card-val{font-family:'DM Serif Display',serif;font-size:2rem;display:block;margin-bottom:2px}
.stat-card-lbl{font-size:0.62rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-4)}

/* Right panel */
.detail-panel{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:16px;padding:28px}
.detail-empty{text-align:center;padding:60px 24px;color:var(--ink-4)}
.detail-empty-icon{font-family:'DM Serif Display',serif;font-size:2.5rem;opacity:0.2;display:block;margin-bottom:12px}
.detail-title{font-family:'DM Serif Display',serif;font-size:1.5rem;letter-spacing:-0.3px;margin-bottom:6px}
.detail-meta{font-size:0.78rem;color:var(--ink-3);margin-bottom:20px}
.detail-section{margin-bottom:24px}
.detail-section-title{font-size:0.62rem;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--ink-4);margin-bottom:10px}
.detail-actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}

/* Quota bar */
.quota-bar{height:6px;background:var(--paper-3);border-radius:99px;overflow:hidden;margin-top:6px}
.quota-fill{height:100%;border-radius:99px;transition:width 0.5s var(--ease-out)}
.quota-ok{background:var(--green)}
.quota-warn{background:#d4a010}
.quota-full{background:var(--accent)}

/* Invite link box */
.invite-box{background:var(--paper-2);border:1.5px solid var(--paper-3);border-radius:10px;padding:12px 14px;display:flex;align-items:center;gap:10px;margin-bottom:8px}
.invite-url{font-size:0.72rem;color:var(--ink-2);flex:1;word-break:break-all;font-family:monospace}
.invite-used{opacity:0.5;text-decoration:line-through}
.invite-status{font-size:0.62rem;font-weight:600;padding:3px 8px;border-radius:20px;flex-shrink:0}
.invite-pending{background:rgba(200,160,42,0.12);color:#8a6010}
.invite-used-badge{background:var(--green-light);color:var(--green)}

/* ── CLIENT SELECTOR (coach view) ── */
.client-selector{background:var(--paper-2);border-radius:12px;padding:12px 16px;margin-bottom:20px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.client-selector-label{font-size:0.65rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-4)}
.client-chip{font-size:0.75rem;font-weight:600;padding:6px 14px;border-radius:20px;border:1.5px solid var(--paper-3);background:var(--surface);color:var(--ink-3);cursor:pointer;transition:all 0.2s}
.client-chip:hover{border-color:var(--ink-4);color:var(--ink-2)}
.client-chip.active{background:var(--blue);border-color:var(--blue);color:white}

/* ── WEEK NAV ── */
.week-nav{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.week-label{font-size:0.72rem;font-weight:600;color:var(--ink-3);flex:1;text-align:center}
.week-btn{width:30px;height:30px;border:1.5px solid var(--paper-3);background:transparent;color:var(--ink-3);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;transition:all 0.2s}
.week-btn:hover{border-color:var(--ink-4);color:var(--ink);background:var(--paper-2)}

/* ── DAY STRIP ── */
.day-strip{display:flex;gap:4px;margin-bottom:32px;background:var(--paper-2);padding:4px;border-radius:12px;position:relative}
.day-pill{flex:1;font-family:'DM Sans',sans-serif;font-size:0.68rem;font-weight:600;padding:9px 4px;border-radius:8px;border:none;background:transparent;color:var(--ink-3);cursor:pointer;transition:color 0.2s;position:relative;z-index:1}
.day-pill.active{color:var(--ink)}
.day-pill.today::after{content:'';position:absolute;bottom:3px;left:50%;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--accent)}
.day-pill.has-data::before{content:'';position:absolute;top:4px;right:6px;width:4px;height:4px;border-radius:50%;background:var(--green);opacity:0.7}
.day-slider{position:absolute;top:4px;bottom:4px;background:var(--surface);border-radius:8px;transition:all 0.3s var(--ease-spring);box-shadow:0 1px 6px rgba(0,0,0,0.1);pointer-events:none}

/* ── SESSION ROW ── */
.session-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:28px;align-items:center}
.session-pill{font-family:'DM Sans',sans-serif;font-size:0.72rem;font-weight:600;padding:7px 14px;border-radius:20px;border:1.5px solid var(--paper-3);background:transparent;color:var(--ink-3);cursor:pointer;transition:all 0.2s;white-space:nowrap}
.session-pill:hover{border-color:var(--ink-4);color:var(--ink-2);transform:translateY(-1px)}
.session-pill.active{background:var(--ink);border-color:var(--ink);color:white}
.session-pill-wrap{position:relative;display:inline-flex}
.session-pill-del{position:absolute;top:-5px;right:-5px;width:16px;height:16px;border-radius:50%;background:var(--ink-3);color:white;border:none;cursor:pointer;font-size:9px;display:none;align-items:center;justify-content:center;transition:background 0.15s}
.session-pill-wrap:hover .session-pill-del{display:flex}
.session-pill-del:hover{background:var(--accent)}

/* ── STATS ── */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:28px}
.stat-block{background:var(--paper-2);border-radius:10px;padding:14px 16px}
.stat-val{font-family:'DM Serif Display',serif;font-size:1.5rem;display:block;transition:transform 0.2s var(--ease-spring)}
.stat-val.pop{animation:statPop 0.3s var(--ease-spring)}
@keyframes statPop{0%{transform:scale(1)}50%{transform:scale(1.25)}100%{transform:scale(1)}}
.stat-lbl{font-size:0.58rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-4);margin-top:2px}

/* ── MUSCLE RECAP ── */
.muscle-recap{margin-bottom:28px}
.muscle-recap-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.muscle-recap-toggle{font-size:0.65rem;font-weight:600;color:var(--ink-4);background:none;border:none;cursor:pointer;letter-spacing:0.5px;transition:color 0.2s}
.muscle-recap-toggle:hover{color:var(--ink-2)}
.muscle-bars{display:flex;flex-direction:column;gap:7px;overflow:hidden;transition:max-height 0.4s var(--ease-out),opacity 0.3s;max-height:400px;opacity:1}
.muscle-bars.collapsed{max-height:0!important;opacity:0}
.muscle-bar-row{display:flex;align-items:center;gap:10px;animation:slideUp 0.3s var(--ease-out) backwards}
.muscle-bar-label{font-size:0.68rem;font-weight:600;width:72px;flex-shrink:0;color:var(--ink-2)}
.muscle-bar-track{flex:1;height:6px;background:var(--paper-3);border-radius:99px;overflow:hidden}
.muscle-bar-fill{height:100%;border-radius:99px;transition:width 0.6s var(--ease-out)}
.muscle-bar-count{font-size:0.68rem;font-weight:700;width:56px;text-align:right;flex-shrink:0}

/* ── EXERCISES ── */
.ex-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.exercises-list{display:flex;flex-direction:column;gap:8px}
.ex-card{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:var(--radius);overflow:hidden;transition:border-color 0.25s,box-shadow 0.25s,transform 0.25s var(--ease-out);animation:slideUp 0.3s var(--ease-out) backwards}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.ex-card:hover{border-color:var(--ink-4);box-shadow:0 4px 24px rgba(0,0,0,0.07);transform:translateY(-2px)}
.ex-card.done{border-color:rgba(42,122,75,0.35)}
.ex-card.dragging{opacity:0.4;transform:scale(0.98)}
.ex-card.drag-over{border-color:var(--accent);border-style:dashed;transform:translateY(-3px)}
.ex-drag-handle{display:flex;align-items:center;justify-content:center;width:24px;flex-shrink:0;cursor:grab;color:var(--ink-4);font-size:14px;padding:4px 0;transition:color 0.2s;touch-action:none}
.ex-drag-handle:hover{color:var(--ink-2)}
.ex-drag-handle.disabled{cursor:default;opacity:0.2;pointer-events:none}
.ex-move-btns{display:flex;flex-direction:column;gap:2px;opacity:0;transition:opacity 0.15s;flex-shrink:0}
.ex-card:hover .ex-move-btns{opacity:1}
.ex-move-btn{width:22px;height:18px;border:1.5px solid var(--paper-3);border-radius:5px;background:transparent;color:var(--ink-4);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:9px;transition:all 0.15s;line-height:1}
.ex-move-btn:hover{border-color:var(--ink-3);color:var(--ink-2);background:var(--paper-2)}
.ex-move-btn.hidden{display:none}
.ex-top{display:flex;align-items:center;gap:8px;padding:14px 18px 12px;cursor:pointer;user-select:none}
.ex-left{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0}
.ex-left-top{display:flex;align-items:center;gap:8px;min-width:0}
.ex-num{font-family:'DM Serif Display',serif;font-size:1.1rem;color:var(--ink-4);width:22px;flex-shrink:0}
.ex-name{font-size:0.88rem;font-weight:600;color:var(--ink);transition:color 0.3s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ex-card.expanded .ex-name{white-space:normal;overflow:visible;text-overflow:unset}
.ex-card.done .ex-name{color:var(--green)}
.ex-meta{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.ex-summary{font-size:0.68rem;color:var(--ink-3)}
.cat-badge{display:inline-flex;align-items:center;font-size:0.58rem;font-weight:700;letter-spacing:0.8px;text-transform:uppercase;padding:2px 7px;border-radius:20px}
.ex-toggle{width:28px;height:28px;border-radius:8px;border:1.5px solid var(--paper-3);background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s var(--ease-out);flex-shrink:0;color:var(--ink-3);font-size:12px}
.ex-toggle:hover{border-color:var(--ink-4);color:var(--ink);background:var(--paper-2)}
.ex-card.expanded .ex-toggle{background:var(--ink);border-color:var(--ink);color:var(--paper);transform:rotate(45deg)}
.ex-del-top{width:28px;height:28px;border-radius:8px;border:1.5px solid var(--paper-3);background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s;flex-shrink:0;color:var(--ink-4);font-size:11px}
.ex-del-top:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}
.ex-body{max-height:0;overflow:hidden;transition:max-height 0.4s var(--ease-out),opacity 0.3s;opacity:0;border-top:0px solid var(--paper-3)}
.ex-card.expanded .ex-body{max-height:600px;opacity:1;border-top-width:1px}
.sets-inner{padding:16px 18px 14px}
.sets-col-headers{display:grid;grid-template-columns:28px 1fr 1fr 32px;gap:8px;margin-bottom:8px}
.sets-col-lbl{font-size:0.6rem;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink-4);text-align:center}
.set-row{display:grid;grid-template-columns:28px 1fr 1fr 32px;gap:8px;align-items:center;margin-bottom:6px;animation:setIn 0.25s var(--ease-spring) backwards}
@keyframes setIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:translateX(0)}}
.set-idx{font-size:0.68rem;font-weight:600;color:var(--ink-4);text-align:center;font-family:'DM Serif Display',serif}
.set-input{font-family:'DM Sans',sans-serif;font-size:0.88rem;font-weight:600;width:100%;padding:8px 10px;border-radius:8px;border:1.5px solid var(--paper-3);background:var(--paper);color:var(--ink);text-align:center;transition:all 0.2s;outline:none;-moz-appearance:textfield}
.set-input::-webkit-outer-spin-button,.set-input::-webkit-inner-spin-button{-webkit-appearance:none}
.set-input:focus{border-color:var(--ink-2);background:var(--surface);box-shadow:0 0 0 3px rgba(0,0,0,0.06)}
.set-input.filled{border-color:rgba(42,122,75,0.4);background:var(--green-light);color:var(--green)}
.set-del{width:28px;height:28px;border:none;background:transparent;color:var(--ink-4);cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all 0.15s}
.set-del:hover{color:var(--accent);background:var(--accent-light)}
.add-set-btn{width:100%;margin-top:10px;padding:8px;border:1.5px dashed var(--paper-3);border-radius:8px;background:transparent;color:var(--ink-4);font-family:'DM Sans',sans-serif;font-size:0.72rem;font-weight:600;cursor:pointer;transition:all 0.2s}
.add-set-btn:hover{border-style:solid;border-color:var(--ink-3);color:var(--ink-2);background:var(--paper-2)}
.ex-foot{padding:0 18px 14px;display:flex;gap:8px;justify-content:flex-end}
.set-complete-flash{position:fixed;pointer-events:none;z-index:10000;font-size:1.4rem;animation:burstUp 0.8s var(--ease-out) forwards}
@keyframes burstUp{0%{opacity:1;transform:translateY(0) scale(0.5)}40%{opacity:1;transform:translateY(-30px) scale(1.2)}100%{opacity:0;transform:translateY(-70px) scale(0.8)}}

/* ── FOCUS ── */
.focus-overlay{position:fixed;inset:0;background:rgba(247,245,240,0.96);backdrop-filter:blur(20px) saturate(1.5);z-index:500;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;pointer-events:none;transition:opacity 0.3s}
.focus-overlay.active{opacity:1;pointer-events:all}
.focus-panel{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:20px;padding:36px;width:100%;max-width:440px;box-shadow:0 24px 80px rgba(0,0,0,0.12);transform:translateY(20px) scale(0.97);transition:all 0.35s var(--ease-spring)}
.focus-overlay.active .focus-panel{transform:translateY(0) scale(1)}
.focus-ex-num{font-size:0.65rem;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--ink-4);margin-bottom:4px}
.focus-ex-name{font-family:'DM Serif Display',serif;font-size:1.9rem;letter-spacing:-0.5px;color:var(--ink);margin-bottom:28px;line-height:1.2}
.focus-sets{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.focus-set-row{display:flex;align-items:center;gap:14px;padding:12px 16px;background:var(--paper);border:1.5px solid var(--paper-3);border-radius:10px;transition:border-color 0.2s,background 0.2s}
.focus-set-row:focus-within{border-color:var(--ink-2);background:var(--surface);box-shadow:0 2px 12px rgba(0,0,0,0.07)}
.focus-set-lbl{font-size:0.68rem;font-weight:700;color:var(--ink-4);letter-spacing:1px;width:34px;flex-shrink:0;text-transform:uppercase}
.focus-in{font-family:'DM Serif Display',serif;font-size:1.5rem;background:transparent;border:none;outline:none;color:var(--ink);width:0;flex:1;text-align:center;-moz-appearance:textfield}
.focus-in::-webkit-outer-spin-button,.focus-in::-webkit-inner-spin-button{-webkit-appearance:none}
.focus-in:not(:placeholder-shown){color:var(--green)}
.focus-unit{font-size:0.65rem;font-weight:500;color:var(--ink-4);width:24px;text-align:right}
.focus-sep{font-size:0.75rem;color:var(--ink-4)}
.focus-foot{display:flex;gap:8px}
.focus-foot .btn{flex:1;justify-content:center;padding:12px;font-size:0.8rem}

/* ── MODAL ── */
.modal-overlay{position:fixed;inset:0;background:rgba(247,245,240,0.9);backdrop-filter:blur(16px);z-index:600;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;pointer-events:none;transition:opacity 0.25s;overflow-y:auto}
.modal-overlay.active{opacity:1;pointer-events:all}
.modal{background:var(--surface);border:1.5px solid var(--paper-3);border-radius:16px;padding:28px;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,0.1);transform:translateY(16px);transition:transform 0.3s var(--ease-spring);max-height:90vh;overflow-y:auto;margin:auto}
.modal-wide{max-width:520px}
.modal-overlay.active .modal{transform:translateY(0)}
/* Empêche le scroll de la page derrière quand une modal est ouverte */
body.modal-open{overflow:hidden;touch-action:none}
.modal-title{font-family:'DM Serif Display',serif;font-size:1.3rem;margin-bottom:20px;letter-spacing:-0.3px}
.modal-foot{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}

/* ── LIBRARY ── */
.cat-filter-row{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:12px}
.cat-filter-btn{font-family:'DM Sans',sans-serif;font-size:0.65rem;font-weight:700;padding:4px 10px;border-radius:20px;border:1.5px solid var(--paper-3);background:transparent;cursor:pointer;transition:all 0.15s;text-transform:uppercase;letter-spacing:0.5px;color:var(--ink-3)}
.cat-filter-btn:hover{border-color:var(--ink-4);color:var(--ink-2)}
.exo-list{max-height:280px;overflow-y:auto;border:1.5px solid var(--paper-3);border-radius:10px;margin-bottom:16px}
.exo-list-item{display:flex;align-items:center;justify-content:space-between;padding:9px 14px;cursor:pointer;border-bottom:1px solid var(--paper-2);transition:background 0.15s;gap:10px}
.exo-list-item:last-child{border-bottom:none}
.exo-list-item:hover{background:var(--paper-2)}
.exo-list-item.already-added{opacity:0.35;pointer-events:none}
.exo-item-name{font-size:0.82rem;font-weight:500;color:var(--ink);flex:1}
.exo-item-add{width:26px;height:26px;border-radius:6px;border:1.5px solid var(--paper-3);background:transparent;color:var(--ink-3);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.15s;flex-shrink:0}
.exo-list-item:hover .exo-item-add{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}
.exo-list-empty{padding:24px;text-align:center;font-size:0.78rem;color:var(--ink-4)}
.cat-picker{display:flex;flex-wrap:wrap;gap:6px}
.cat-option{font-family:'DM Sans',sans-serif;font-size:0.72rem;font-weight:600;padding:6px 12px;border-radius:20px;border:1.5px solid var(--paper-3);background:transparent;color:var(--ink-3);cursor:pointer;transition:all 0.15s}

/* New session */
.selected-exos-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.selected-count{font-size:0.68rem;font-weight:700;background:var(--ink);color:var(--paper);width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.selected-exos-list{min-height:42px;display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;padding:8px;background:var(--paper-2);border-radius:8px;border:1.5px solid var(--paper-3)}
.selected-exo-tag{display:inline-flex;align-items:center;gap:5px;font-size:0.72rem;font-weight:600;padding:4px 10px;border-radius:20px;border:1.5px solid transparent;animation:tagIn 0.2s var(--ease-spring)}
@keyframes tagIn{from{opacity:0;transform:scale(0.7)}to{opacity:1;transform:scale(1)}}
.selected-exo-tag button{border:none;background:none;cursor:pointer;font-size:13px;line-height:1;padding:0;opacity:0.6;transition:opacity 0.15s}
.selected-exo-tag button:hover{opacity:1}
.selected-exos-empty{font-size:0.72rem;color:var(--ink-4);align-self:center;padding:4px}

/* ── HISTORY ── */
.history-panel{position:fixed;top:0;right:-420px;bottom:0;width:400px;max-width:95vw;background:var(--surface);border-left:1.5px solid var(--paper-3);z-index:700;transition:right 0.4s var(--ease-out);display:flex;flex-direction:column;box-shadow:-20px 0 60px rgba(0,0,0,0.08)}
.history-panel.open{right:0}
.history-header{padding:24px 24px 16px;border-bottom:1px solid var(--paper-3);display:flex;align-items:center;justify-content:space-between}
.history-title{font-family:'DM Serif Display',serif;font-size:1.2rem}
.history-list{flex:1;overflow-y:auto;padding:16px}
.history-item{padding:12px 14px;border-radius:10px;border:1.5px solid var(--paper-3);margin-bottom:8px;cursor:pointer;transition:all 0.2s}
.history-item:hover{border-color:var(--ink-4);background:var(--paper);transform:translateX(-3px)}
.history-week{font-size:0.65rem;font-weight:600;color:var(--ink-4);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:2px}
.history-day{font-size:0.82rem;font-weight:600;color:var(--ink)}
.history-meta{font-size:0.7rem;color:var(--ink-3);margin-top:2px}
.history-empty{text-align:center;padding:40px 20px;color:var(--ink-4);font-size:0.8rem}

/* ── EMPTY ── */
.empty{text-align:center;padding:56px 24px;color:var(--ink-4)}
.empty-icon{font-family:'DM Serif Display',serif;font-size:3rem;display:block;margin-bottom:12px;opacity:0.3}
.empty p{font-size:0.82rem;margin-bottom:20px}

/* ── TOAST ── */
.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(12px);background:var(--ink);color:var(--paper);font-size:0.75rem;font-weight:500;padding:10px 20px;border-radius:999px;white-space:nowrap;opacity:0;transition:all 0.3s var(--ease-out);pointer-events:none;z-index:9000;box-shadow:0 8px 30px rgba(0,0,0,0.2)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ── AUTH TABS ── */
.auth-tabs{display:flex;gap:2px;background:var(--paper-2);border-radius:8px;padding:3px;margin-bottom:24px}
.auth-tab{flex:1;font-family:'DM Sans',sans-serif;font-size:0.75rem;font-weight:600;padding:7px;border:none;border-radius:6px;background:transparent;color:var(--ink-3);cursor:pointer;transition:all 0.2s}
.auth-tab.active{background:var(--surface);color:var(--ink);box-shadow:0 1px 4px rgba(0,0,0,0.1)}

@media(max-width:768px){
  header{padding:16px 16px 0}
  .app{padding:20px 16px 80px}
  .dashboard-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .ex-move-btns{display:none !important}
  .ex-drag-handle{opacity:1 !important;color:var(--ink-3)}
}