*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#000a23;--bg2:#061530;
  --red:#cc1f1f;--gold:#f0b429;
  --text:#ffffff;--text-dim:#c8ddf0;--text-muted:#a0bcd8;
  --card:#132540;--card2:#1a2f4a;--border:#243d5e;
  --green:#27ae60;--blue:#1a6fe8;
  --font-h:'Rajdhani',sans-serif;--font-m:'DM Mono',monospace;
}
html,body{height:100%;background:var(--bg);color:var(--text);font-family:var(--font-h)}
#app{position:relative;z-index:1;height:100%}
.view{display:none;height:100%}.view.active{display:flex;flex-direction:column}

/* ── SPLASH ── */
#view-splash{align-items:center;justify-content:center;background:var(--bg)}
.splash-logo{text-align:center;animation:splashIn .7s ease both;padding:20px}
@keyframes splashIn{from{opacity:0;transform:scale(.88)}to{opacity:1;transform:scale(1)}}
.splash-logo img{width:min(340px,85vw);height:auto}
.splash-tagline{font-family:var(--font-m);font-size:12px;color:var(--text-dim);margin-top:24px;letter-spacing:3px;text-transform:uppercase}

/* ── AUTH ── */
#view-login,#view-register-page{align-items:center;justify-content:center;padding:24px;overflow-y:auto}
.auth-wrap{width:100%;max-width:440px}
.logo-area{text-align:center;margin-bottom:28px}
.logo-area img{width:min(280px,80vw);height:auto}
.logo-sub{font-family:var(--font-m);font-size:11px;color:var(--text-dim);margin-top:8px;letter-spacing:2px}
.auth-link{text-align:center;margin-top:16px;font-size:15px;color:#5599ee;cursor:pointer;font-weight:600}
.auth-link:hover{text-decoration:underline}

/* Sport-Auswahl */
.sport-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.sport-card{background:var(--card2);border:2px solid var(--border);border-radius:10px;
  padding:14px 10px;text-align:center;cursor:pointer;transition:all .2s;font-size:14px;font-weight:700;color:var(--text)}
.sport-card:hover{border-color:var(--red)}
.sport-card.active{border-color:var(--red);background:rgba(204,31,31,.15);color:#ff6666}
.sport-card .sport-icon{font-size:26px;display:block;margin-bottom:6px}

/* ── CARD / INPUTS ── */
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px}
.field-group{margin-bottom:16px}
label{display:block;font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-dim);margin-bottom:7px;font-family:var(--font-m)}
input[type=text],input[type=email],input[type=password],input[type=file],textarea,select{
  width:100%;background:var(--card2);border:1.5px solid var(--border);border-radius:9px;
  padding:11px 14px;color:var(--text);font-family:var(--font-h);font-size:15px;transition:border-color .2s;outline:none}
input:focus,textarea:focus,select:focus{border-color:var(--red)}
textarea{resize:vertical;min-height:80px}
select option{background:var(--card2)}

/* ── BUTTONS ── */
.btn-primary{width:100%;background:var(--red);color:#fff;border:none;border-radius:9px;padding:13px;
  font-family:var(--font-h);font-size:16px;font-weight:700;letter-spacing:.5px;cursor:pointer;transition:opacity .15s,transform .1s}
.btn-primary:hover{opacity:.88}.btn-primary:active{transform:scale(.98)}
.btn-primary.btn-sm{width:auto;padding:8px 18px;font-size:14px}
.btn-secondary{background:transparent;color:#c8ddf0;border:1.5px solid var(--border);
  border-radius:9px;padding:9px 16px;font-family:var(--font-h);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-secondary:hover{border-color:var(--text-dim);color:var(--text)}
.btn-secondary.btn-sm{padding:6px 12px;font-size:13px}
.btn-danger{background:rgba(204,31,31,.18);color:#ff6666;border:1px solid rgba(204,31,31,.35);
  border-radius:8px;padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font-h)}
.error-msg{background:rgba(204,31,31,.15);border:1px solid rgba(204,31,31,.5);border-radius:8px;padding:10px 14px;font-size:14px;color:#ff8080;margin-top:8px}
.success-msg{background:rgba(39,174,96,.15);border:1px solid rgba(39,174,96,.5);border-radius:8px;padding:10px 14px;font-size:14px;color:#5ddc8a;margin-top:8px}

/* ── APP LAYOUT ── */
#view-app{flex-direction:column}
@media(min-width:768px){#view-app{flex-direction:row}}

/* ── SIDEBAR ── */
.sidebar{width:256px;background:var(--bg2);border-right:1px solid var(--border);
  display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;
  position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);transition:transform .25s}
.sidebar.open{transform:translateX(0)}
@media(min-width:768px){.sidebar{position:relative;transform:none}}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:49}
.sidebar-overlay.show{display:block}
@media(min-width:768px){.sidebar-overlay{display:none!important}}

.sidebar-top{padding:20px 16px;border-bottom:1px solid var(--border)}
.sidebar-logo{margin-bottom:16px}
.sidebar-logo img{width:min(180px,100%);height:auto}
.sidebar-user{display:flex;align-items:center;gap:10px}
.user-avatar{width:38px;height:38px;background:var(--red);border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0}
.user-name{font-size:15px;font-weight:700;color:var(--text)}
.user-role{font-size:11px;color:var(--text-dim);font-family:var(--font-m)}
.user-sport{font-size:11px;color:#ff8080;font-family:var(--font-m);font-weight:600}

.nav-items{padding:12px 10px;flex:1}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:9px;
  cursor:pointer;font-size:15px;font-weight:600;color:#c8ddf0;
  transition:background .15s,color .15s;margin-bottom:3px;position:relative;font-family:var(--font-h);letter-spacing:.2px}
.nav-item:hover{background:rgba(255,255,255,.06);color:var(--text)}
.nav-item.active{background:rgba(204,31,31,.18);color:#ff8080;border-left:3px solid var(--red)}
.nav-icon{width:22px;text-align:center;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.nav-icon svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.nav-divider{height:1px;background:var(--border);margin:10px 4px}
.nav-badge{margin-left:auto;background:var(--red);color:#fff;border-radius:20px;padding:2px 7px;font-size:10px;font-weight:700}

/* ── MOBILE HEADER ── */
.mobile-header{display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40;min-height:56px}
@media(min-width:768px){.mobile-header{display:none}}
.menu-btn{background:none;border:none;color:var(--text);font-size:24px;cursor:pointer;padding:4px;line-height:1}
.mobile-header-logo{height:auto;width:min(160px,45vw);object-fit:contain}

/* ── CONTENT ── */
.content-area{flex:1;overflow-y:auto;display:flex;flex-direction:column;min-width:0}
.page{display:none;flex-direction:column;padding:20px;flex:1}
.page.active{display:flex}
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.page-header h2{font-size:26px;font-weight:700;letter-spacing:.3px;color:var(--text)}

/* ── FILTERS ── */
.search-bar{margin-bottom:14px}
.search-bar input{border-radius:12px;padding:12px 16px;font-size:15px}
.topic-filters,.diff-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.topic-chip{display:inline-flex;align-items:center;padding:5px 12px;border-radius:6px;
  background:var(--card2);color:var(--text-dim);font-size:13px;font-weight:700;
  cursor:pointer;border:2px solid transparent;transition:all .2s}
.topic-chip:hover{color:var(--text);border-color:var(--border)}
.topic-chip.active{background:rgba(204,31,31,.15);color:#ff8080;border-color:var(--red)}
.diff-chip{display:inline-flex;padding:5px 14px;border-radius:20px;font-size:13px;font-weight:700;
  cursor:pointer;border:2px solid transparent;transition:all .2s}
.diff-chip.active{border-color:currentColor}
.sort-bar{display:flex;align-items:center;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.sort-label{font-size:12px;color:var(--text-dim);font-family:var(--font-m)}
.sort-btn{background:var(--card);border:1px solid var(--border);border-radius:20px;
  padding:6px 16px;font-size:13px;font-weight:600;cursor:pointer;color:#c8ddf0;transition:all .2s}
.sort-btn.active{background:var(--red);color:#fff;border-color:var(--red)}

/* ── DIFFICULTY ── */
.diff-badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700}
.diff-einsteiger{background:rgba(39,174,96,.2);color:#5ddc8a}
.diff-fortgeschritten{background:rgba(26,111,232,.2);color:#7ab3ff}
.diff-könner{background:rgba(240,180,41,.2);color:#f5c842}
.diff-experte{background:rgba(204,31,31,.2);color:#ff8080}

/* ── EXERCISE GRID ── */
.exercise-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.exercise-card{background:var(--card);border:1px solid var(--border);border-radius:14px;
  overflow:hidden;cursor:pointer;transition:transform .2s,border-color .2s,box-shadow .2s;animation:fadeUp .25s ease both}
.exercise-card:hover{transform:translateY(-3px);border-color:rgba(204,31,31,.5);box-shadow:0 8px 24px rgba(0,0,0,.3)}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.exercise-thumb-placeholder{width:100%;aspect-ratio:16/9;background:var(--card2);
  display:flex;align-items:center;justify-content:center}
.exercise-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.exercise-info{padding:14px}
.exercise-title{font-size:16px;font-weight:700;margin-bottom:4px;color:var(--text)}
.exercise-uploader{font-size:12px;color:var(--text-dim);font-family:var(--font-m);margin-bottom:8px}
.exercise-meta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px}

/* ── TRANSFER BUTTON ── */
.exercise-card-wrap{position:relative;animation:fadeUp .25s ease both}
.transfer-btn{position:absolute;top:8px;right:8px;background:rgba(11,26,42,.85);
  border:1px solid rgba(255,255,255,.25);border-radius:8px;color:white;
  padding:6px 12px;font-size:12px;font-weight:700;cursor:pointer;
  backdrop-filter:blur(4px);transition:all .2s;font-family:var(--font-h)}
.transfer-btn:hover{background:var(--red);border-color:var(--red)}

/* ── STARS ── */
.star-rating{display:flex;gap:4px}
.star{font-size:26px;cursor:pointer;transition:transform .1s;color:var(--border);user-select:none}
.star.filled{color:var(--gold)}
.star:hover{transform:scale(1.2)}

/* ── FAV BUTTON ── */
.fav-btn{background:var(--card2);border:1.5px solid var(--border);border-radius:9px;
  padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;color:var(--text-dim);transition:all .2s}
.fav-btn.active{background:rgba(240,180,41,.15);border-color:var(--gold);color:var(--gold)}

/* ── VIDEO MODAL ── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);
  z-index:200;align-items:center;justify-content:center;padding:16px}
.modal-overlay.open{display:flex}
.video-modal{background:var(--bg2);border:1px solid var(--border);border-radius:16px;
  width:100%;max-width:700px;max-height:92vh;overflow-y:auto;animation:fadeUp .2s ease}
.video-modal-header{display:flex;align-items:flex-start;justify-content:space-between;padding:20px 20px 12px;gap:12px}
.video-modal-header h3{font-size:20px;font-weight:700;color:var(--text)}
.modal-close{background:none;border:none;color:var(--text-dim);font-size:24px;cursor:pointer;flex-shrink:0;line-height:1}
video{display:block}
.video-modal-actions{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;flex-wrap:wrap;gap:10px}
.video-modal-desc{padding:0 20px 8px;font-size:15px;color:var(--text-dim);line-height:1.6}
.video-modal-uploader{padding:0 20px 12px;font-size:12px;color:var(--text-muted);font-family:var(--font-m)}
.video-modal-meta{padding:8px 20px 16px;font-family:var(--font-m);font-size:11px;color:var(--text-muted)}
.video-modal .field-group{padding:0 20px 16px;margin:0}

/* Transfer Popup */
.transfer-popup{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:20px;width:100%;max-width:400px;animation:fadeUp .2s ease}
.transfer-option{background:var(--card);border:1.5px solid var(--border);border-radius:10px;
  padding:16px;margin-bottom:10px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;color:var(--text)}
.transfer-option:hover{border-color:var(--red);background:rgba(204,31,31,.1)}
.transfer-option .opt-icon{font-size:22px}
.course-select-list{max-height:220px;overflow-y:auto}
.course-select-item{background:var(--card);border:1.5px solid var(--border);border-radius:8px;
  padding:12px 14px;margin-bottom:8px;cursor:pointer;transition:all .2s;font-size:14px;font-weight:600;color:var(--text)}
.course-select-item:hover{border-color:var(--red)}

/* ── MODAL ── */
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:16px;width:100%;max-width:460px;animation:fadeUp .2s ease}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:18px;font-weight:700;color:var(--text)}
.modal-body{padding:20px}

/* ── TRAINING / COURSES ── */
.training-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.training-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;cursor:pointer;transition:transform .2s,border-color .2s;animation:fadeUp .25s ease both}
.training-card:hover{transform:translateY(-2px);border-color:rgba(204,31,31,.5)}
.training-card-info{padding:12px}
.training-card-title{font-size:15px;font-weight:700;margin-bottom:8px;color:var(--text)}
.training-card-meta{display:flex;align-items:center;justify-content:space-between;gap:8px}

.course-card{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;animation:fadeUp .25s ease both}
.course-card-header{display:flex;align-items:center;justify-content:space-between;padding:16px;cursor:pointer;transition:background .15s}
.course-card-header:hover{background:var(--card2)}
.course-name{font-size:17px;font-weight:700;color:var(--text)}
.course-meta{font-size:12px;color:var(--text-dim);font-family:var(--font-m);margin-top:3px}
.course-chevron{color:var(--text-dim);transition:transform .2s;font-size:14px}
.course-chevron.open{transform:rotate(180deg)}
.course-items{display:none;padding:0 16px 16px}
.course-items.open{display:block}
.course-item-row{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--border)}
.course-item-row:last-child{border-bottom:none}
.course-item-drag{color:var(--text-muted);cursor:grab;font-size:16px;padding:0 4px}
.course-item-title{flex:1;font-size:14px;font-weight:600;color:var(--text);cursor:pointer}
.course-item-title:hover{color:#ff8080}
.course-item-remove{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:18px;padding:4px;line-height:1}
.course-item-remove:hover{color:var(--red)}

/* ── GROUPS ── */
.group-card{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden}
.group-header{display:flex;align-items:center;justify-content:space-between;padding:16px;cursor:pointer;transition:background .15s;flex-wrap:wrap;gap:8px}
.group-header:hover{background:var(--card2)}
.group-name{font-size:17px;font-weight:700;color:var(--text)}
.group-meta{font-size:12px;color:var(--text-dim);font-family:var(--font-m);margin-top:3px}
.group-members{display:none;padding:0 16px 16px}
.group-members.open{display:block}

/* Member Grid */
.member-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-top:8px}
.member-tile{background:var(--card2);border:1px solid var(--border);border-radius:12px;padding:14px;text-align:center;transition:border-color .2s}
.member-tile:hover{border-color:rgba(204,31,31,.4)}
.member-tile-photo{width:72px;height:72px;border-radius:50%;background:var(--bg);margin:0 auto 10px;overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--text-dim);border:2px solid var(--border)}
.member-tile-photo img{width:100%;height:100%;object-fit:cover}
.member-tile-name{font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px}
.member-tile-notes{font-size:11px;color:var(--text-dim);line-height:1.5;text-align:left;background:var(--bg);border-radius:6px;padding:8px;margin-bottom:8px;white-space:pre-line;max-height:80px;overflow-y:auto}
.member-tile-actions{display:flex;gap:4px;justify-content:center;flex-wrap:wrap}

/* Legacy member-card für shared view */
.member-card{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}
.member-card:last-child{border-bottom:none}
.member-photo{width:50px;height:50px;border-radius:10px;background:var(--card2);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;overflow:hidden}
.member-photo img{width:100%;height:100%;object-fit:cover}
.member-name{font-size:15px;font-weight:700;color:var(--text)}
.member-notes{font-size:13px;color:var(--text-dim);margin-top:3px;line-height:1.5}
.member-actions{margin-left:auto;display:flex;gap:6px;flex-shrink:0}

/* Tagesplan */
.dayplan-section{margin-top:12px;background:var(--card2);border-radius:10px;padding:12px}
.dayplan-title{font-size:12px;font-weight:700;color:var(--text-dim);font-family:var(--font-m);letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.dayplan-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px;color:var(--text)}
.dayplan-item:last-child{border-bottom:none}
.dayplan-time{font-family:var(--font-m);font-size:11px;color:var(--text-dim);min-width:40px}

/* ── UPLOAD ── */
.upload-card{max-width:600px}
.upload-zone{border:2px dashed var(--border);border-radius:12px;padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s}
.upload-zone:hover{border-color:var(--red);background:rgba(204,31,31,.05)}
.upload-zone-icon{font-size:36px;margin-bottom:10px}
.upload-zone-text{font-size:16px;font-weight:700;color:var(--text);margin-bottom:4px}
.upload-zone-sub{font-size:12px;color:var(--text-dim);font-family:var(--font-m)}
.progress-bar{height:6px;background:var(--border);border-radius:3px;margin:12px 0 6px;overflow:hidden}
.progress-fill{height:100%;background:var(--red);border-radius:3px;transition:width .3s;width:0}
.progress-text{font-family:var(--font-m);font-size:12px;color:var(--text-dim);text-align:center}

/* ── INVITE ── */
.invite-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:10px}
.invite-label{font-size:15px;font-weight:700;color:var(--text)}
.invite-code{font-family:var(--font-m);font-size:11px;color:var(--text-dim);margin-top:4px;word-break:break-all}
.invite-meta{font-size:12px;color:var(--text-dim);margin-top:6px;font-family:var(--font-m)}
.invite-actions{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}

/* ── STATS ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;text-align:center}
.stat-value{font-size:32px;font-weight:700;color:var(--red)}
.stat-label{font-size:11px;color:var(--text-dim);margin-top:4px;font-family:var(--font-m)}
.rank-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin-bottom:8px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:border-color .2s}
.rank-item:hover{border-color:rgba(204,31,31,.4)}
.rank-num{font-family:var(--font-m);font-size:18px;font-weight:500;min-width:28px;color:var(--text-dim)}
.rank-title{font-size:15px;font-weight:700;flex:1;color:var(--text)}
.rank-meta{font-size:12px;color:var(--text-dim);font-family:var(--font-m)}

/* ── SETTINGS ── */
.settings-wrap{max-width:500px}
.settings-section{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px}
.settings-section-title{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-dim);margin-bottom:16px;font-family:var(--font-m)}

/* ── LOADER / EMPTY ── */
.loader{display:flex;align-items:center;gap:12px;padding:48px 20px;color:var(--text-dim);font-size:15px;justify-content:center}
.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--red);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.empty-state{text-align:center;padding:56px 20px;color:var(--text-dim)}
.empty-emoji{font-size:52px;margin-bottom:16px}
.empty-state h3{font-size:22px;font-weight:700;color:var(--text);margin-bottom:8px}
.empty-state p{font-size:14px;line-height:1.6}

/* ── TOAST ── */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--card2);border:1px solid var(--border);border-radius:10px;
  padding:12px 22px;font-size:14px;font-weight:600;z-index:300;transition:transform .3s;white-space:nowrap;
  box-shadow:0 8px 24px rgba(0,0,0,.5);color:var(--text)}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.error{border-color:rgba(204,31,31,.6);color:#ff8080}
.toast.success{border-color:rgba(39,174,96,.6);color:#5ddc8a}

/* ── INSTALL BANNER ── */
#installBanner{display:none;position:fixed;bottom:0;left:0;right:0;
  background:var(--red);padding:16px 20px;z-index:400;
  align-items:center;justify-content:space-between;gap:12px;box-shadow:0 -4px 20px rgba(0,0,0,.4)}