@font-face {
  font-family: 'BasementGrotesque';
  src: url('../fonts/BasementGrotesque-Black_v1.202.otf') format('opentype');
  font-weight: 900;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-Light.ttf') format('truetype');
  font-weight: 300;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-Medium.ttf') format('truetype');
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-Bold.ttf') format('truetype');
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-ExtraBold.ttf') format('truetype');
  font-weight: 800;
  font-display: swap;
}

@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins/Poppins-Black.ttf') format('truetype');
  font-weight: 900;
  font-display: swap;
}

/* ============ THEME VARIABLES ============ */
:root {
  --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'BasementGrotesque', 'Poppins', sans-serif;
  --accent: #E02020;
  --accent-light: #FF4444;
  --accent-dark: #B01818;
  --accent-bg: rgba(224, 32, 32, 0.08);
  --accent-bg2: rgba(224, 32, 32, 0.15);
  --green: #00b894;
  --yellow: #fdcb6e;
  --red: #e17055;
  --orange: #f39c12;
  --blue: #0984e3;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.2s ease;
}

/* Light Mode (default) */
:root {
  --bg: #F5F5F7;
  --bg2: #FFFFFF;
  --bg3: #F0F0F2;
  --text: #1D1D1F;
  --text2: #6E6E73;
  --border: rgba(0,0,0,0.08);
  --card-shadow: 0 1px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --nav-bg: rgba(255,255,255,0.85);
  --overlay: rgba(255,255,255,0.6);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0A0A0C;
    --bg2: #141416;
    --bg3: #1C1C1E;
    --text: #F5F5F7;
    --text2: #8E8E93;
    --border: rgba(255,255,255,0.08);
    --card-shadow: 0 1px 8px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --nav-bg: rgba(20,20,22,0.85);
    --overlay: rgba(0,0,0,0.6);
  }
}

[data-theme="dark"] {
  --bg: #0A0A0C;
  --bg2: #141416;
  --bg3: #1C1C1E;
  --text: #F5F5F7;
  --text2: #8E8E93;
  --border: rgba(255,255,255,0.08);
  --card-shadow: 0 1px 8px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --nav-bg: rgba(20,20,22,0.85);
  --overlay: rgba(0,0,0,0.6);
}

[data-theme="light"] {
  --bg: #F5F5F7;
  --bg2: #FFFFFF;
  --bg3: #F0F0F2;
  --text: #1D1D1F;
  --text2: #6E6E73;
  --border: rgba(0,0,0,0.08);
  --card-shadow: 0 1px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --nav-bg: rgba(255,255,255,0.85);
  --overlay: rgba(255,255,255,0.6);
}

/* ============ RESET ============ */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
::selection{background:var(--accent);color:#fff}

/* ============ HEADING FONT ============ */
h1,h2,h3,h4{font-family:var(--font-heading)}

/* ============ NAV ============ */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:6px;padding:10px 16px;background:var(--nav-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.nav-brand{font-weight:900;font-size:1.1rem;color:var(--accent);margin-right:8px;white-space:nowrap;letter-spacing:-0.02em;text-transform:uppercase;font-family:var(--font-heading)}
.nav-scroll{display:flex;gap:4px;overflow-x:auto;flex:1;-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-btn{background:none;border:none;color:var(--text2);padding:8px 14px;border-radius:var(--radius-sm);cursor:pointer;font-size:.82rem;font-weight:600;white-space:nowrap;transition:var(--transition);font-family:var(--font)}
.nav-btn:hover{background:var(--bg3);color:var(--text)}
.nav-btn.active{background:var(--accent);color:#fff}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}
.nav-user{font-size:.78rem;color:var(--text2);display:none}
.nav-avatar{width:32px;height:32px;border-radius:50%;border:2px solid var(--accent);object-fit:cover;cursor:pointer;transition:var(--transition)}
.nav-avatar:hover{transform:scale(1.1)}

/* ============ LAYOUT ============ */
.container{max-width:1100px;margin:0 auto;padding:20px 16px}
.page{display:none}.page.active{display:block}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--card-shadow);transition:var(--transition);overflow:hidden}
.card:hover{box-shadow:var(--shadow-lg)}
.card-title{font-size:.9rem;font-weight:700;margin-bottom:14px;color:var(--accent);text-transform:uppercase;letter-spacing:0.04em;font-family:var(--font-heading)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}

/* Dashboard 2-column layout */
.dash-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:16px;margin-top:16px}
.dash-col-main,.dash-col-side{display:flex;flex-direction:column;gap:0}
.dash-col-main .card,.dash-col-side .card{margin-bottom:16px}
@media(max-width:800px){.dash-layout{grid-template-columns:1fr}}

/* ============ CLICKABLE CARD ============ */
.clickable-card{cursor:pointer;transition:var(--transition)}
.clickable-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--accent)}

/* ============ SCORES ============ */
.score-circle{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:800;flex-shrink:0}
.score-sm{width:44px;height:44px;font-size:.95rem;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.score-breakdown{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.score-item{text-align:center}
.score-item .score-label{font-size:.72rem;color:var(--text2);margin-top:2px}

/* ============ FORMS ============ */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.8rem;color:var(--text2);margin-bottom:4px;font-weight:600;text-transform:uppercase;letter-spacing:0.03em}
.form-row{display:flex;gap:10px;flex-wrap:wrap}
.form-row .form-group{flex:1;min-width:120px}
input,select,textarea{width:100%;padding:12px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.9rem;font-family:var(--font);outline:none;transition:var(--transition)}
input[type="date"]{max-width:100%;box-sizing:border-box}
input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
textarea{resize:vertical;min-height:60px}

/* ============ BUTTONS ============ */
.btn{padding:12px 24px;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.9rem;font-weight:700;font-family:var(--font);transition:var(--transition);text-transform:uppercase;letter-spacing:0.02em}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-secondary{background:var(--bg3);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}
.btn-danger{background:var(--red);color:#fff}.btn-danger:hover{opacity:.85}
.btn-sm{padding:6px 14px;font-size:.78rem}
.btn-icon{background:none;border:none;color:var(--text2);cursor:pointer;font-size:1.1rem;padding:4px;transition:var(--transition)}.btn-icon:hover{color:var(--accent)}
.btn-google{display:flex;align-items:center;gap:12px;padding:14px 32px;background:#fff;color:#333;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;font-weight:600;font-family:var(--font);transition:var(--transition);margin:0 auto;box-shadow:0 2px 12px rgba(0,0,0,0.1)}
.btn-google:hover{box-shadow:0 4px 20px rgba(0,0,0,0.15);transform:translateY(-2px)}
.btn-outline{background:none;border:2px solid var(--accent);color:var(--accent);padding:10px 20px;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:700;font-family:var(--font);transition:var(--transition)}
.btn-outline:hover{background:var(--accent);color:#fff}
.btn-follow{background:var(--accent);color:#fff;border:none;padding:8px 20px;border-radius:20px;font-size:.82rem;font-weight:700;cursor:pointer;font-family:var(--font);transition:var(--transition)}
.btn-follow.following{background:var(--bg3);color:var(--text2);border:1px solid var(--border)}
.btn-follow:hover{transform:scale(1.05)}

/* ============ TABS ============ */
.tabs{display:flex;gap:4px;margin-bottom:16px}
.tab-btn{padding:8px 16px;border:none;background:var(--bg3);color:var(--text2);border-radius:var(--radius-sm) var(--radius-sm) 0 0;cursor:pointer;font-size:.85rem;font-weight:600;font-family:var(--font);transition:var(--transition)}
.tab-btn.active{background:var(--accent);color:#fff}

/* ============ EXERCISE BLOCKS ============ */
.set-row{display:flex;gap:8px;align-items:center;margin-bottom:6px;flex-wrap:wrap}
.set-row input{width:70px;flex:none}
.set-row .set-label{font-size:.78rem;color:var(--text2);width:28px;text-align:center;flex:none}
.exercise-block{background:var(--bg3);border-radius:var(--radius-sm);padding:14px;margin-bottom:10px;border:1px solid var(--border)}
.exercise-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}

/* ============ WORKOUT LIST ============ */
.workout-item{display:flex;gap:16px;align-items:center;padding:16px;background:var(--bg3);border-radius:var(--radius);margin-bottom:8px;cursor:pointer;transition:var(--transition);border:1px solid transparent}
.workout-item:hover{border-color:var(--accent);transform:translateX(4px)}
.workout-info{flex:1}
.workout-info h4{font-size:.95rem;margin-bottom:3px;font-weight:600}
.workout-info p{font-size:.8rem;color:var(--text2)}
.workout-type-badge{font-size:.68rem;padding:3px 10px;border-radius:20px;font-weight:700;text-transform:uppercase;letter-spacing:0.03em}
.type-gym{background:var(--accent-bg);color:var(--accent)}
.type-running{background:rgba(0,184,148,.15);color:var(--green)}
.type-karting{background:rgba(243,156,18,.15);color:var(--orange)}
.type-cycling{background:rgba(9,132,227,.15);color:var(--blue)}
.type-swimming{background:rgba(0,206,201,.15);color:#00cec9}
.type-hiking{background:rgba(108,92,231,.15);color:#6c5ce7}
.type-custom{background:var(--accent-bg);color:var(--accent)}

/* ============ STATS ============ */
.stat-box{text-align:center;padding:20px 16px}
.stat-box .stat-value{font-size:2rem;font-weight:900;letter-spacing:-0.02em;font-family:var(--font-heading)}
.stat-box .stat-label{font-size:.72rem;color:var(--text2);margin-top:4px;text-transform:uppercase;font-weight:600;letter-spacing:0.04em}
.muscle-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border);font-size:.85rem}
.muscle-item:last-child{border:none}
.muscle-bar-bg{width:100px;height:6px;background:var(--bg);border-radius:3px;overflow:hidden}
.muscle-bar-fill{height:100%;border-radius:3px}

/* ============ CHARTS ============ */
.chart-container{position:relative;height:280px;margin-top:8px}
canvas{max-width:100%}

/* ============ MODALS ============ */
.modal-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:var(--overlay);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:100;justify-content:center;align-items:center;padding:16px}
.modal-overlay.show{display:flex}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);max-width:600px;width:100%;max-height:85vh;overflow-y:auto;padding:24px;box-shadow:var(--shadow-lg)}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}

/* ============ IMPORT ============ */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:40px;text-align:center;cursor:pointer;transition:var(--transition)}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:var(--accent-bg)}
.drop-zone p{color:var(--text2);font-size:.9rem}
.import-progress{width:100%;height:6px;background:var(--bg3);border-radius:3px;margin:12px 0;overflow:hidden}
.import-progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .3s;width:0}
.import-preview-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:.82rem}
.import-preview-item:last-child{border:none}
.import-checkbox{width:18px;height:18px;accent-color:var(--accent)}

/* ============ ADVICE ============ */
.advice-box{background:var(--accent-bg);border-left:3px solid var(--accent);padding:12px 16px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin-top:10px;font-size:.85rem;line-height:1.5}

/* ============ EXERCISE LIBRARY ============ */
.lib-item{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;background:var(--bg3);border-radius:var(--radius-sm);margin-bottom:4px;font-size:.85rem}
.lib-item .muscle-tag{font-size:.72rem;padding:3px 10px;border-radius:20px;background:var(--accent-bg);color:var(--accent);font-weight:600}

/* ============ EMPTY / TOAST / SYNC ============ */
.empty-state{text-align:center;padding:40px;color:var(--text2)}
.empty-state p{font-size:.95rem;margin-bottom:8px}
.toast{position:fixed;bottom:20px;right:20px;background:var(--accent);color:#fff;padding:14px 24px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;z-index:200;transform:translateY(100px);opacity:0;transition:all .3s;box-shadow:var(--shadow-lg)}
.toast.show{transform:translateY(0);opacity:1}
.toast.error{background:var(--red)}
.toast.success{background:var(--green)}
.sync-indicator{font-size:.68rem;padding:3px 10px;border-radius:20px;font-weight:600}
.sync-ok{background:rgba(0,184,148,.15);color:var(--green)}
.sync-offline{background:rgba(253,203,110,.15);color:var(--yellow)}

/* ============ LOGIN ============ */
.login-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:20px;text-align:center;background:var(--bg)}
.login-brand{font-size:3rem;font-weight:900;color:var(--accent);margin-bottom:8px;letter-spacing:-0.04em;text-transform:uppercase;font-family:var(--font-heading)}
.login-screen p{color:var(--text2);margin-bottom:32px;max-width:400px;font-size:.95rem;line-height:1.6}

/* ============ MOBILE-FIRST LOG WIZARD ============ */
.log-wizard{max-width:600px;margin:0 auto}
.log-step{display:none}.log-step.active{display:block}
.step-indicator{display:flex;gap:8px;margin-bottom:20px;justify-content:center}
.step-dot{width:10px;height:10px;border-radius:50%;background:var(--bg3);transition:all .3s}
.step-dot.active{background:var(--accent);width:28px;border-radius:5px}
.step-dot.done{background:var(--green)}
.type-card{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;background:var(--bg3);border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:var(--transition);text-align:center;min-height:100px}
.type-card:hover,.type-card.selected{border-color:var(--accent);background:var(--accent-bg)}
.type-card .type-icon{font-size:2rem;margin-bottom:6px}
.type-card .type-name{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:0.02em}
.type-cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin:16px 0}
.date-picker-big{font-size:1.1rem;padding:16px;text-align:center;border-radius:var(--radius);max-width:100%;box-sizing:border-box}
.exercise-add-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px;border:2px dashed var(--border);border-radius:var(--radius);background:none;color:var(--accent);cursor:pointer;font-size:.95rem;font-weight:700;width:100%;transition:var(--transition);margin-bottom:12px;font-family:var(--font)}
.exercise-add-btn:hover{border-color:var(--accent);background:var(--accent-bg)}
.exercise-card{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}
.exercise-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.exercise-card-name{font-weight:700;font-size:1rem}
.exercise-card-muscle{font-size:.75rem;color:var(--accent);font-weight:600;text-transform:uppercase}
.exercise-card-last{font-size:.78rem;color:var(--text2);margin-bottom:10px;font-style:italic}
.set-inline{display:flex;gap:6px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.set-inline .set-num{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0}
.set-inline input{width:68px;padding:10px 8px;font-size:.95rem;text-align:center;border-radius:var(--radius-sm)}
.set-inline select{width:68px;padding:10px 4px;font-size:.85rem;text-align:center}
.copy-set-btn{background:none;border:1px solid var(--border);color:var(--text2);border-radius:var(--radius-sm);padding:4px 12px;font-size:.75rem;cursor:pointer;white-space:nowrap;font-family:var(--font);font-weight:600;transition:var(--transition)}
.copy-set-btn:hover{border-color:var(--accent);color:var(--accent)}
.save-workout-big{width:100%;padding:18px;font-size:1.1rem;border-radius:var(--radius);margin-top:16px}

/* ============ BOTTOM SHEET ============ */
.bottom-sheet-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:150}
.bottom-sheet-overlay.show{display:block}
.bottom-sheet{position:fixed;bottom:0;left:0;width:100%;max-height:70vh;background:var(--bg2);border-radius:var(--radius) var(--radius) 0 0;padding:20px;z-index:151;transform:translateY(100%);transition:transform .3s ease;overflow-y:auto;box-shadow:var(--shadow-lg)}
.bottom-sheet.show{transform:translateY(0)}
.bottom-sheet-handle{width:40px;height:4px;background:var(--border);border-radius:2px;margin:0 auto 16px}
.bottom-sheet-search{width:100%;padding:12px 16px;font-size:1rem;border-radius:var(--radius-sm);margin-bottom:12px}
.bs-exercise-item{padding:14px 12px;border-radius:var(--radius-sm);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.bs-exercise-item:hover{background:var(--bg3)}
.bs-exercise-item .bs-ex-name{font-weight:600}
.bs-exercise-item .bs-ex-muscle{font-size:.78rem;color:var(--accent);font-weight:600}

/* ============ PUBMED RESEARCH BOX ============ */
.research-box{background:var(--accent-bg);border:1px solid var(--border);border-radius:var(--radius);margin-top:16px;overflow:hidden}
.research-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;cursor:pointer;user-select:none}
.research-header:hover{background:var(--accent-bg2)}
.research-header h4{font-size:.85rem;color:var(--accent);font-weight:700;text-transform:uppercase}
.research-body{display:none;padding:0 16px 16px}
.research-body.open{display:block}
.research-article{padding:10px 0;border-bottom:1px solid var(--border);font-size:.82rem}
.research-article:last-child{border:none}
.research-article .article-title{font-weight:600;color:var(--text);margin-bottom:3px}
.research-article .article-meta{color:var(--text2);font-size:.75rem;margin-bottom:4px}
.research-article .article-insight{color:var(--text2);line-height:1.4}
.research-article a{color:var(--accent);text-decoration:none;font-weight:600}

/* ============ PROFILE ============ */
.profile-card{display:flex;align-items:center;gap:20px;padding:24px}
.profile-avatar-lg{width:88px;height:88px;border-radius:50%;border:3px solid var(--accent);object-fit:cover}
.profile-info h3{margin-bottom:4px;font-weight:800;font-size:1.2rem}
.profile-info p{font-size:.82rem;color:var(--text2)}
.copy-link-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text2);cursor:pointer;font-size:.8rem;font-weight:600;font-family:var(--font);transition:var(--transition)}
.copy-link-btn:hover{border-color:var(--accent);color:var(--accent)}

/* ============ FITNESS ASSESSMENT ============ */
.fitness-card{background:var(--bg3);border-radius:var(--radius);padding:20px;margin-top:16px;text-align:center}
.fitness-score{font-size:3rem;font-weight:900;color:var(--accent);letter-spacing:-0.03em;font-family:var(--font-heading)}
.fitness-label{font-size:1.1rem;font-weight:700;margin-top:4px}
.fitness-detail{font-size:.85rem;color:var(--text2);margin-top:8px;line-height:1.5}
.fitness-bars{display:grid;gap:8px;margin-top:16px;text-align:left}
.fitness-bar-row{display:flex;align-items:center;gap:10px}
.fitness-bar-row .fb-label{font-size:.78rem;color:var(--text2);width:80px;font-weight:600}
.fitness-bar-row .fb-track{flex:1;height:8px;background:var(--bg);border-radius:4px;overflow:hidden}
.fitness-bar-row .fb-fill{height:100%;border-radius:4px;transition:width .5s ease}

/* ============ FRIENDS ============ */
.friend-card{display:flex;align-items:center;gap:14px;padding:14px;background:var(--bg3);border-radius:var(--radius);margin-bottom:10px;transition:var(--transition)}
.friend-card:hover{box-shadow:var(--card-shadow)}
.friend-avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;border:2px solid var(--border)}
.friend-info{flex:1}
.friend-info h4{font-size:.95rem;font-weight:700}
.friend-info p{font-size:.78rem;color:var(--text2)}
.compare-section{margin-top:20px}
.compare-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.compare-card{background:var(--bg3);border-radius:var(--radius);padding:20px}
.compare-card h4{font-size:.85rem;font-weight:700;color:var(--accent);text-transform:uppercase;margin-bottom:12px}
.compare-bar{display:flex;align-items:center;gap:8px;margin:10px 0}
.compare-bar-label{font-size:.78rem;width:40px;font-weight:600}
.compare-bar-track{flex:1;height:10px;background:var(--bg);border-radius:5px;overflow:hidden}
.compare-bar-fill{height:100%;border-radius:5px;transition:width .5s ease}
.compare-value{font-size:.82rem;font-weight:700;width:60px;text-align:right}

/* ============ WEIGHT & BODY ============ */
.weight-form{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;margin-bottom:20px}
.weight-form .form-group{flex:1;min-width:120px}
.bmi-badge{display:inline-block;padding:8px 18px;border-radius:var(--radius-sm);font-weight:700;font-size:.9rem}
.bmi-underweight{background:rgba(9,132,227,.15);color:var(--blue)}
.bmi-normal{background:rgba(0,184,148,.15);color:var(--green)}
.bmi-overweight{background:rgba(253,203,110,.15);color:var(--yellow)}
.bmi-obese{background:rgba(225,112,85,.15);color:var(--red)}
.weight-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px}
.weight-stat{text-align:center;padding:16px;background:var(--bg3);border-radius:var(--radius-sm)}
.weight-stat .ws-value{font-size:1.5rem;font-weight:800}
.weight-stat .ws-label{font-size:.72rem;color:var(--text2);margin-top:4px;text-transform:uppercase;font-weight:600}

/* ============ HEATMAP ============ */
.heatmap-container{overflow-x:auto;padding:8px 0}
.heatmap-canvas{display:block}
.heatmap-legend{display:flex;align-items:center;gap:4px;margin-top:8px;font-size:.72rem;color:var(--text2)}
.heatmap-legend span{width:12px;height:12px;border-radius:3px;display:inline-block}

/* ============ STREAK ============ */
.streak-display{display:flex;gap:28px;justify-content:center;align-items:center;padding:20px}
.streak-num{font-size:2.8rem;font-weight:900;color:var(--accent);letter-spacing:-0.03em;font-family:var(--font-heading)}
.streak-info{text-align:left}
.streak-info .streak-label{font-size:.8rem;color:var(--text2);font-weight:600;text-transform:uppercase}

/* ============ HR ZONES ============ */
.hr-zones-bar{display:flex;height:32px;border-radius:var(--radius-sm);overflow:hidden;margin:8px 0}
.hr-zone{display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;color:#fff;min-width:20px}
.hr-zone-legend{display:flex;gap:12px;flex-wrap:wrap;font-size:.75rem;margin-top:6px}

/* ============ SPORT MANAGER ============ */
.sport-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:20px;background:var(--bg3);border:1px solid var(--border);font-size:.82rem;font-weight:600;margin:3px;transition:var(--transition);cursor:pointer}
.sport-chip:hover{border-color:var(--accent)}
.sport-chip.active{background:var(--accent-bg);border-color:var(--accent);color:var(--accent)}
.sport-chip .remove-sport{font-size:.9rem;color:var(--text2);cursor:pointer;margin-left:2px}
.sport-chip .remove-sport:hover{color:var(--accent)}

/* ============ MUSCLE GROUP MANAGER ============ */
.muscle-chip{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:20px;background:var(--accent-bg);color:var(--accent);font-size:.78rem;font-weight:600;margin:2px}
.muscle-chip .remove-muscle{cursor:pointer;font-size:.85rem}
.muscle-chip .remove-muscle:hover{color:var(--accent-dark)}

/* ============ SEARCH ============ */
.search-box{position:relative}
.search-box input{padding-left:36px}
.search-results{position:absolute;top:100%;left:0;right:0;background:var(--bg2);border:1px solid var(--border);border-radius:0 0 var(--radius-sm) var(--radius-sm);max-height:240px;overflow-y:auto;z-index:10;box-shadow:var(--shadow-lg);display:none}
.search-results.show{display:block}
.search-result-item{padding:12px 14px;cursor:pointer;display:flex;align-items:center;gap:10px;transition:var(--transition)}
.search-result-item:hover{background:var(--bg3)}
.search-result-item img{width:32px;height:32px;border-radius:50%;object-fit:cover}

/* ============ FILTER BTNS ============ */
.filter-btn{background:var(--bg3);border:1px solid var(--border);color:var(--text2);padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:600;cursor:pointer;font-family:var(--font);transition:var(--transition)}
.filter-btn:hover{border-color:var(--accent);color:var(--text)}
.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ============ ATHLETIC DETAIL CARDS ============ */
.athletic-metric-card{background:var(--bg3);border-radius:var(--radius);padding:20px;text-align:center}
.athletic-metric-value{font-size:2rem;font-weight:900;font-family:var(--font-heading);color:var(--accent)}
.athletic-metric-label{font-size:.78rem;color:var(--text2);text-transform:uppercase;font-weight:600;margin-top:4px}
.athletic-metric-desc{font-size:.82rem;color:var(--text2);margin-top:8px;line-height:1.5}

/* ============ LIBRARY FILTER ============ */
.lib-filter-btn{display:inline-flex;align-items:center;padding:6px 14px;border-radius:20px;background:var(--bg3);border:1px solid var(--border);color:var(--text2);font-size:.78rem;font-weight:600;cursor:pointer;font-family:var(--font);transition:var(--transition);margin:2px}
.lib-filter-btn:hover{border-color:var(--accent);color:var(--text)}
.lib-filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ============ NOTIFICATIONS ============ */
.notif-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--bg3);border-radius:var(--radius-sm);margin-bottom:8px;font-size:.85rem}
.notif-item.unread{border-left:3px solid var(--accent)}
.notif-time{font-size:.72rem;color:var(--text2);margin-left:auto;white-space:nowrap}
.notif-badge{position:absolute;top:-4px;right:-4px;width:8px;height:8px;border-radius:50%;background:var(--accent)}

/* ============ EXERCISE PARAM TAG ============ */
.param-tag{font-size:.68rem;padding:2px 8px;border-radius:12px;background:rgba(9,132,227,.15);color:var(--blue);font-weight:600;margin-left:4px}

/* ============ RESPONSIVE ============ */
@media(max-width:600px){
  .nav{gap:4px;padding:8px 10px}
  .nav-brand{font-size:.95rem}
  .nav-btn{padding:6px 10px;font-size:.75rem}
  .container{padding:12px 10px}
  .card{padding:16px;border-radius:14px}
  .form-row{flex-direction:column}
  .workout-item{flex-direction:column;align-items:flex-start;gap:8px}
  .stat-box .stat-value{font-size:1.5rem}
  .set-row input{width:60px}
  .type-cards-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}
  .set-inline input{width:60px}
  .compare-grid{grid-template-columns:1fr}
  .friend-card{padding:12px}
  .profile-card{flex-direction:column;text-align:center}
  .nav-user{display:none}
  .streak-num{font-size:2rem}
  .login-brand{font-size:2.2rem}
  .weight-form{flex-direction:column}
  .weight-form .form-group{min-width:100%}
}

@media(min-width:601px){
  .nav-user{display:inline}
}