/* GoFit 5K — Purple mobile-first design */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --purple:#6C5CE7;--purple-dark:#5A4BD1;--purple-light:#EDE9FE;--purple-glow:rgba(108,92,231,.15);
  --bg:#F8F9FC;--surface:#FFFFFF;--surface2:#F1F3F9;--text:#1A1D26;--muted:#6B7280;
  --accent:var(--purple);--accent2:#8B7CF7;--danger:#EF4444;--success:#10B981;--warning:#F59E0B;
  --border:#E5E7EB;--radius:16px;--nav-h:64px;--safe-b:env(safe-area-inset-bottom,0px);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --shadow:0 4px 20px rgba(108,92,231,.08);
}
html{font-size:16px;-webkit-tap-highlight-color:transparent}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100dvh;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font:inherit;color:var(--text)}

.app-shell{max-width:480px;margin:0 auto;min-height:100dvh;padding-bottom:calc(var(--nav-h) + var(--safe-b) + 8px)}
.page{padding:16px 16px 24px}

/* Header */
.app-header{padding:20px 16px 12px;background:var(--surface)}
.app-header h1{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;color:var(--text)}
.app-header p{color:var(--muted);font-size:.875rem;margin-top:4px}
.header-row{display:flex;justify-content:space-between;align-items:flex-start}
.header-icons{display:flex;gap:12px;align-items:center}
.icon-btn{width:40px;height:40px;border-radius:50%;background:var(--surface2);display:flex;align-items:center;justify-content:center;font-size:1.1rem}

/* Greeting */
.greeting-row{display:flex;align-items:center;justify-content:space-between}
.greeting-row h1{font-size:1.35rem;font-weight:800}
.greeting-sub{color:var(--muted);font-size:.85rem;margin-top:2px}
.greeting-avatar{width:44px;height:44px;border-radius:50%;background:var(--purple);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}

/* Cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}
.card-accent{border-color:var(--purple);background:linear-gradient(135deg,var(--purple-glow),var(--surface))}
.card-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600;margin-bottom:6px}
.card-title{font-size:1.05rem;font-weight:700;margin-bottom:4px}
.card-meta{font-size:.8rem;color:var(--muted)}

/* Stats */
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.stat-box{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center;box-shadow:var(--shadow)}
.stat-val{font-size:1.25rem;font-weight:800;color:var(--purple)}
.stat-lbl{font-size:.65rem;color:var(--muted);text-transform:uppercase;margin-top:2px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:14px;font-weight:700;font-size:.95rem;width:100%;transition:.15s}
.btn-primary{background:var(--purple);color:#fff}
.btn-primary:active{transform:scale(.98);background:var(--purple-dark)}
.btn-secondary{background:var(--surface2);border:1px solid var(--border);color:var(--text)}
.btn-ghost{color:var(--muted);padding:10px}
.btn-sm{padding:10px 16px;font-size:.85rem;width:auto;border-radius:10px}
.btn-outline{background:transparent;border:2px solid var(--purple);color:var(--purple)}

/* Bottom nav */
.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:8px 0 calc(8px + var(--safe-b));z-index:100;max-width:480px;margin:0 auto;box-shadow:0 -4px 20px rgba(0,0,0,.04)}
.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 12px;color:var(--muted);font-size:.65rem;font-weight:600;min-width:56px}
.nav-item.active{color:var(--purple)}
.nav-icon{font-size:1.25rem}

/* Featured run card */
.featured-run{background:linear-gradient(135deg,var(--purple) 0%,#8B7CF7 100%);border-radius:20px;padding:20px;color:#fff;margin-bottom:16px;position:relative;overflow:hidden}
.featured-run::after{content:"🏃";position:absolute;right:-10px;bottom:-10px;font-size:5rem;opacity:.15}
.featured-run .run-day-label{font-size:.75rem;opacity:.85;margin-bottom:4px}
.featured-run h2{font-size:1.35rem;font-weight:800;margin-bottom:6px}
.featured-run p{font-size:.85rem;opacity:.9;margin-bottom:12px;line-height:1.4}
.featured-run .run-meta-row{display:flex;gap:16px;font-size:.8rem;opacity:.9;margin-bottom:16px}
.featured-run .btn{background:#fff;color:var(--purple);border-radius:12px;padding:12px 20px;font-weight:700;width:100%;display:block;text-align:center}

/* Week tabs */
.week-tabs{display:flex;gap:8px;overflow-x:auto;margin-bottom:16px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
.week-tab{flex-shrink:0;padding:10px 16px;border-radius:999px;font-size:.8rem;font-weight:600;background:var(--surface);border:1px solid var(--border);color:var(--muted);cursor:pointer;transition:.15s}
.week-tab.active{background:var(--purple);color:#fff;border-color:var(--purple)}

/* Run list cards */
.run-list{display:flex;flex-direction:column;gap:10px}
.run-card{display:flex;align-items:center;gap:14px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);transition:.15s}
.run-card:active{transform:scale(.99)}
.run-card.done{opacity:.75}
.run-card.locked{opacity:.45;pointer-events:none}
.run-card-thumb{width:64px;height:64px;border-radius:14px;background:var(--purple-glow);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;position:relative}
.run-card-thumb.done::after{content:"✓";position:absolute;inset:0;background:rgba(108,92,231,.85);border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.2rem}
.run-card-info{flex:1;min-width:0}
.run-card-info h4{font-size:.9rem;font-weight:700;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.run-card-info p{font-size:.75rem;color:var(--muted)}
.run-card-badge{padding:4px 10px;border-radius:999px;font-size:.65rem;font-weight:700;background:var(--purple-light);color:var(--purple);flex-shrink:0}
.run-card.today{border-color:var(--purple);box-shadow:0 0 0 2px var(--purple-glow)}

/* Progress ring inline */
.progress-bar{height:8px;background:var(--surface2);border-radius:999px;overflow:hidden;margin:12px 0}
.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--purple),var(--accent2));border-radius:999px;transition:width .4s}

/* Run session */
.run-hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
.run-type-badge{display:inline-block;padding:4px 12px;border-radius:999px;font-size:.7rem;font-weight:700;text-transform:uppercase;margin-bottom:10px}
.type-walk{background:#E0F2FE;color:#0369A1}
.type-intervals{background:var(--purple-light);color:var(--purple)}
.type-easy{background:#D1FAE5;color:#065F46}
.type-steady{background:#FEF3C7;color:#92400E}
.type-tempo{background:#FEE2E2;color:#991B1B}
.type-recovery{background:var(--surface2);color:var(--muted)}
.type-benchmark{background:#FEE2E2;color:#DC2626}
.type-celebration{background:var(--purple-light);color:var(--purple)}
.pace-display{font-size:1.5rem;font-weight:800;color:var(--purple);margin:8px 0}

.run-detail{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:8px;box-shadow:var(--shadow)}
.run-detail h4{font-size:.75rem;color:var(--muted);text-transform:uppercase;margin-bottom:6px;letter-spacing:.05em}
.run-detail p{font-size:.875rem;line-height:1.5}

.step-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:8px}
.step-list li{display:flex;gap:12px;align-items:flex-start;padding:12px;background:var(--surface2);border-radius:12px;font-size:.875rem}
.step-num{width:28px;height:28px;border-radius:50%;background:var(--purple);color:#fff;font-size:.75rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}

.run-week-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;margin-bottom:16px;-webkit-overflow-scrolling:touch}
.run-day-pill{flex-shrink:0;padding:10px 14px;border-radius:12px;background:var(--surface);border:1px solid var(--border);font-size:.8rem;font-weight:600;cursor:pointer;text-align:center;min-width:64px}
.run-day-pill.active{border-color:var(--purple);background:var(--purple-light);color:var(--purple)}
.run-day-pill.done{border-color:var(--success);background:#D1FAE5}
.run-day-pill .pill-num{font-size:1rem;font-weight:800;display:block}
.run-day-pill .pill-type{font-size:.6rem;color:var(--muted);margin-top:2px}

.time-input{display:flex;gap:8px;align-items:center;margin-top:12px}
.time-input input{width:70px;padding:12px;background:var(--surface2);border:1px solid var(--border);border-radius:10px;text-align:center;font-size:1.1rem;font-weight:700}

/* Checklist */
.exercise{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px;margin-bottom:8px}
.exercise.done{border-color:var(--success);opacity:.7}
.exercise.done .ex-name{text-decoration:line-through;color:var(--muted)}
.ex-top{display:flex;gap:12px;align-items:flex-start}
.ex-check{width:24px;height:24px;border-radius:8px;border:2px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:.15s}
.exercise.done .ex-check{background:var(--success);border-color:var(--success);color:#fff;font-size:.75rem;font-weight:800}
.ex-name{font-weight:700;font-size:.95rem}

/* Onboarding */
.onboard-shell{min-height:100dvh;display:flex;flex-direction:column;background:var(--bg);max-width:480px;margin:0 auto}
.onboard-progress{height:4px;background:var(--surface2);margin:0 16px;border-radius:999px;overflow:hidden}
.onboard-progress-fill{height:100%;background:var(--purple);transition:width .3s}
.onboard-body{flex:1;padding:24px 20px;display:flex;flex-direction:column}
.onboard-body h2{font-size:1.5rem;font-weight:800;margin-bottom:8px}
.onboard-body p{color:var(--muted);font-size:.9rem;margin-bottom:24px;line-height:1.5}
.onboard-footer{padding:16px 20px calc(16px + var(--safe-b))}
.onboard-logo{text-align:center;padding:48px 20px}
.onboard-logo .logo-icon{width:80px;height:80px;border-radius:24px;background:var(--purple);color:#fff;font-size:2rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-weight:800}
.onboard-logo h1{font-size:1.75rem;font-weight:800;color:var(--purple)}
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.choice-card{padding:24px 16px;border:2px solid var(--border);border-radius:16px;text-align:center;cursor:pointer;transition:.15s;background:var(--surface)}
.choice-card.selected{border-color:var(--purple);background:var(--purple-light)}
.choice-card .choice-icon{font-size:2rem;margin-bottom:8px}
.choice-card span{font-size:.85rem;font-weight:600}
.picker-row{display:flex;align-items:center;justify-content:center;gap:16px;margin:24px 0}
.picker-col{text-align:center}
.picker-col input{width:80px;padding:16px;font-size:1.5rem;font-weight:800;text-align:center;border:2px solid var(--border);border-radius:14px;background:var(--surface)}
.picker-col label{font-size:.75rem;color:var(--muted);margin-top:6px;display:block}
.goal-list{display:flex;flex-direction:column;gap:10px}
.goal-item{display:flex;align-items:center;gap:12px;padding:16px;border:2px solid var(--border);border-radius:14px;cursor:pointer;background:var(--surface)}
.goal-item.selected{border-color:var(--purple);background:var(--purple-light)}
.goal-item .goal-check{width:22px;height:22px;border-radius:6px;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.goal-item.selected .goal-check{background:var(--purple);border-color:var(--purple);color:#fff}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:.8rem;color:var(--muted);margin-bottom:6px;font-weight:600}
.form-field input{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--surface);font-size:1rem}

/* Complete modal */
.complete-overlay{position:fixed;inset:0;background:rgba(26,29,38,.6);z-index:300;display:flex;align-items:center;justify-content:center;padding:24px}
.complete-modal{background:var(--surface);border-radius:24px;padding:32px 24px;text-align:center;max-width:340px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,.15)}
.complete-modal .check-circle{width:80px;height:80px;border-radius:50%;background:var(--purple-light);color:var(--purple);font-size:2.5rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.complete-modal h2{font-size:1.5rem;font-weight:800;margin-bottom:8px}
.complete-modal p{color:var(--muted);margin-bottom:24px;font-size:.9rem}

/* Toast */
.toast{position:fixed;top:16px;left:50%;transform:translateX(-50%);background:var(--purple);color:#fff;padding:12px 20px;border-radius:12px;font-weight:600;font-size:.875rem;z-index:200;animation:fadeIn .3s;box-shadow:var(--shadow)}
@keyframes fadeIn{from{opacity:0;transform:translateX(-50%) translateY(-10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* Profile */
.profile-hero{text-align:center;padding:32px 16px;background:var(--surface);border-bottom:1px solid var(--border)}
.profile-avatar{width:80px;height:80px;border-radius:50%;background:var(--purple);display:flex;align-items:center;justify-content:center;font-size:1.75rem;font-weight:800;color:#fff;margin:0 auto 12px}
.goal-card{background:var(--purple-light);border-radius:12px;padding:14px;margin-top:12px;text-align:left}
.goal-card h4{font-size:.8rem;color:var(--purple);margin-bottom:8px;text-transform:uppercase;font-weight:700}

/* Calendar */
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:16px}
.cal-day{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:10px;font-size:.8rem;font-weight:600;background:var(--surface);border:1px solid transparent;cursor:pointer}
.cal-day.done{background:var(--purple-light);color:var(--purple);border-color:var(--purple)}
.cal-day.today{box-shadow:0 0 0 2px var(--purple)}

@media(min-width:481px){
  body{background:#EEF0F5}
  .app-shell{box-shadow:0 0 40px rgba(0,0,0,.06)}
  .bottom-nav{left:50%;transform:translateX(-50%);width:480px}
}
@media(max-width:768px){.nav-item{font-size:.6rem;min-width:48px;padding:6px 4px}}