/* Calipath v3 — Stitch Design System */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
button,input,select,textarea{font-family:inherit}
:root{
  --bg:#0a0a0f;--bg-card:rgba(255,255,255,0.04);--bg-card-hover:rgba(255,255,255,0.07);
  --bg-subtle:rgba(255,255,255,0.03);--bg-faint:rgba(255,255,255,0.02);
  --bg-node:#0d0d12;
  /* ── Surface 3-tier depth (NVIDIA cinematic) ── */
  --surface-0:rgba(255,255,255,0.02);--surface-1:rgba(255,255,255,0.04);--surface-2:rgba(255,255,255,0.07);
  --border:rgba(255,255,255,0.08);--border-accent:rgba(124,106,255,0.3);
  --text:#e8e8ef;--text-dim:#8888a0;--text-muted:#555570;
  --accent:#7c6aff;--accent-glow:rgba(124,106,255,0.25);
  --accent-subtle:rgba(124,106,255,0.04);--accent-bg:rgba(124,106,255,0.06);
  --accent-muted:rgba(124,106,255,0.08);
  --accent-hover:rgba(124,106,255,0.1);--accent-dim:rgba(124,106,255,0.15);
  --accent-border:rgba(124,106,255,0.2);
  --green:#00E676;--green-glow:rgba(0,230,118,0.2);--green-dim:rgba(0,230,118,0.12);
  --green-bg:rgba(74,222,128,0.06);--green-border:rgba(74,222,128,0.15);
  --amber:#fbbf24;--amber-dim:rgba(251,191,36,0.08);--amber-border:rgba(251,191,36,0.2);--amber-badge:rgba(251,191,36,0.15);
  --red:#f87171;--red-dim:rgba(248,113,113,0.15);
  --radius:2rem;--radius-sm:1rem;--radius-pill:20px;
  --transition:0.2s cubic-bezier(0.4,0,0.2,1);
  --font:'Pretendard Variable',Pretendard,-apple-system,'Noto Sans KR',sans-serif;
}
html{font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100dvh;line-height:1.6;-webkit-font-smoothing:antialiased;position:relative}
/* ── Ambient atmospheric background (Runway cinematic — enhanced) ── */
body::before{content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 80% 60% at 70% 15%,rgba(124,106,255,0.10) 0%,transparent 65%),
             radial-gradient(ellipse 60% 50% at 25% 85%,rgba(0,230,118,0.06) 0%,transparent 55%),
             radial-gradient(ellipse 40% 40% at 50% 50%,rgba(124,106,255,0.03) 0%,transparent 70%)}
/* ── Noise texture overlay (cinematic grain) ── */
body::after{content:'';position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0.025;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:128px 128px}
#app{max-width:480px;margin:0 auto;padding:20px 20px 100px;position:relative;z-index:1}

/* ── Typography ── */
.page-title{font-size:1.75rem;font-weight:700;letter-spacing:-0.02em}
.page-subtitle{color:var(--text-dim);font-size:0.9rem;margin:4px 0 20px}
h2{font-size:1.25rem;font-weight:600;letter-spacing:-0.01em;margin-bottom:12px}
h3{font-size:1rem;font-weight:600;color:var(--text-dim);margin-bottom:8px}
.desc{color:var(--text-dim);font-size:0.9rem;line-height:1.5}

/* ── Card ── */
.card{background:var(--surface-1);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:24px;margin-bottom:16px;transition:border-color 200ms ease,transform 96ms ease-out,background var(--transition),box-shadow var(--transition);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 4px 30px rgba(0,0,0,0.3)}
.card:hover{border-color:rgba(255,255,255,0.12)}
.card:active{transform:scale(0.98)}

/* ── Nav: Floating Glass Dock ── */
.nav-bar{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);width:min(92%,440px);background:rgba(20,20,30,0.75);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid rgba(255,255,255,0.08);border-radius:24px;display:flex;justify-content:space-around;padding:10px 0 calc(10px + env(safe-area-inset-bottom));z-index:100;box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 8px 40px rgba(0,0,0,0.5)}
.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--text-muted);font-size:0.65rem;font-weight:500;cursor:pointer;padding:6px 16px;border-radius:16px;transition:all var(--transition);border:none;background:none;letter-spacing:0.05em;position:relative}
.nav-item .nav-icon{font-size:1.4rem;display:flex;align-items:center;justify-content:center;width:22px;height:22px}
.nav-item .nav-icon svg{width:22px;height:22px}
.nav-item.active{color:var(--accent)}
.nav-item.active::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--accent);border-radius:2px;box-shadow:0 0 8px var(--accent-glow)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:600;cursor:pointer;transition:all var(--transition);width:100%}
.btn-primary{background:var(--accent);color:white;box-shadow:0 4px 20px var(--accent-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 25px var(--accent-glow)}
.btn-ghost{background:transparent;color:var(--text-dim);padding:8px 16px;font-size:0.85rem}
.btn-back{background:none;border:none;color:var(--text-dim);font-size:0.9rem;cursor:pointer;padding:8px 0;margin-bottom:16px}

/* ── Pattern Card (Home) ── */
.pattern-card{cursor:pointer;transition:border-color 200ms ease,transform 96ms ease-out,background var(--transition),box-shadow var(--transition)}
.pattern-card:hover{background:var(--surface-2);border-color:var(--border-accent)}
.pattern-card:active{transform:scale(0.98)}
/* ── Card hierarchy: visual weight by state (Anti-Slop #5) ── */
.pattern-card.card-active{border-left:3px solid var(--accent);background:var(--surface-2);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 4px 30px rgba(0,0,0,0.3),0 0 20px rgba(124,106,255,0.08)}
.pattern-card.card-inactive{opacity:0.7;background:var(--surface-0)}
.pattern-card.card-inactive:hover{opacity:1}
.pattern-card.card-complete{border-left:3px solid var(--green);background:rgba(0,230,118,0.03)}
.pattern-card.card-complete .progress-ring-fill{stroke:var(--green)}
.pattern-header{display:flex;align-items:center;gap:14px}
.pattern-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:rgba(124,106,255,0.1);border:1px solid rgba(124,106,255,0.15);flex-shrink:0}
.pattern-info{flex:1}
.pattern-name{font-weight:700;font-size:1rem}
.pattern-current{color:var(--text-dim);font-size:0.8rem;margin-top:2px}

/* Progress Ring */
.progress-ring-ring{position:relative;width:44px;height:44px}
.progress-ring{width:44px;height:44px;transform:rotate(-90deg)}
.progress-ring-bg{fill:none;stroke:rgba(255,255,255,0.06);stroke-width:3}
.progress-ring-fill{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round;stroke-dasharray:0,100;transition:stroke-dasharray 0.6s ease}
.pattern-progress-ring{position:relative;width:44px;height:44px}
.progress-ring-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:0.65rem;font-weight:700;color:var(--text-dim);font-variant-numeric:tabular-nums}

/* Frontier Hint */
.frontier-hint{margin-top:12px;padding:8px 12px;background:var(--accent-bg);border:1px dashed var(--border-accent);border-radius:var(--radius-sm);font-size:0.8rem}
.frontier-label{color:var(--accent);font-weight:600;margin-right:6px}
.frontier-steps{color:var(--text-dim)}
.frontier-hint.complete{background:var(--green-dim);border-color:rgba(74,222,128,0.3);color:var(--green)}

/* Stats */
.stats-card{display:flex;justify-content:space-around;text-align:center}
.stat-value{display:block;font-size:1.5rem;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.stat-label{font-size:0.75rem;color:var(--text-muted);letter-spacing:0.05em}


/* ── Pattern Pills ── */
.pattern-pills{display:flex;gap:6px;overflow-x:auto;padding:4px 0;margin-bottom:12px;-webkit-overflow-scrolling:touch}
.pattern-pill{display:flex;align-items:center;gap:4px;padding:6px 14px;border-radius:var(--radius-pill);background:var(--surface-0);border:1px solid var(--border);color:var(--text-dim);font-size:0.8rem;font-weight:500;white-space:nowrap;cursor:pointer;transition:all var(--transition);backdrop-filter:blur(12px) saturate(150%);-webkit-backdrop-filter:blur(12px) saturate(150%);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.04)}
.pattern-pill.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 0 12px var(--accent-glow)}

/* ── Skill Tree ── */
.map-card{padding:20px 16px}
.skill-tree{position:relative}
/* Gradient vertical connector: green(top) → purple(bottom) */
.skill-tree::before{content:'';position:absolute;left:33px;top:24px;bottom:24px;width:2px;background:linear-gradient(to bottom,var(--green) 0%,var(--accent) 50%,rgba(124,106,255,0.2) 100%);z-index:0;opacity:0.4;border-radius:1px}

/* Stem: trunk node */
.tree-stem{position:relative;padding:3px 0}

/* ── Choice Row ── */
.choice-row{position:relative;margin:4px 0;padding-left:60px}
.choice-row-label{font-size:0.6rem;color:var(--text-muted);margin-bottom:4px}
.choice-row-items{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;-webkit-overflow-scrolling:touch}
.choice-node{flex:0 0 auto;display:flex;align-items:center;gap:6px;padding:7px 12px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);font-size:0.78rem;cursor:default;transition:all var(--transition)}
.choice-dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:0.55rem;flex-shrink:0;background:var(--bg)}
.choice-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}
.choice-check{color:var(--green);font-size:0.7rem;flex-shrink:0}

/* Choice states */
.choice-node.locked{opacity:0.35}
.choice-node.available{cursor:pointer;border-color:var(--border-accent);background:var(--accent-bg)}
.choice-node.available:hover{background:rgba(124,106,255,0.12)}
.choice-node.available .choice-dot{border-color:var(--accent);box-shadow:0 0 6px var(--accent-glow)}
.choice-node.unlocked{cursor:pointer;border-color:rgba(74,222,128,0.25);background:rgba(74,222,128,0.04)}
.choice-node.unlocked .choice-dot{background:var(--green);border-color:var(--green);color:white}

/* ── Tree Node ── */
.tree-node{display:flex;align-items:center;gap:12px;padding:10px 16px;border-radius:var(--radius-sm);font-size:0.85rem;transition:all var(--transition);cursor:default;border:1px solid transparent;position:relative}

/* Fixed-width dot column: all dots centered at same X */
.dot-col{width:34px;height:34px;flex-shrink:0;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}

.tree-dot{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.7rem;font-weight:700;flex-shrink:0;border:2px solid rgba(255,255,255,0.12);background:var(--bg-node);transition:all 0.3s;z-index:2;position:relative;box-shadow:0 0 0 4px var(--bg-node)}
.tree-info{flex:1;min-width:0}
.tree-name{font-weight:600;font-size:0.9rem}
.tree-desc{color:var(--text-muted);font-size:0.75rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Milestone node — larger, glowing */
.tree-node.milestone .tree-dot{width:36px;height:36px;font-size:0.9rem;border-width:2.5px;border-color:rgba(255,255,255,0.15)}
.tree-node.milestone .tree-name{font-weight:700;font-size:0.95rem}

/* ── Node States ── */
.tree-node.locked .tree-name{color:var(--text-muted)}
.tree-node.locked .tree-desc{color:var(--text-muted);opacity:0.5}
.tree-node.locked .tree-dot{border-color:rgba(255,255,255,0.06)}
.tree-node.fog-hint{opacity:0.35;pointer-events:none}
.fog-dot{font-size:0.6rem;color:var(--text-muted);letter-spacing:0.2em}
.fog-text{color:var(--text-muted);font-size:0.8rem;font-style:italic}
.choice-node.fog-hint{opacity:0.35;pointer-events:none}

.tree-node.available{cursor:pointer;border:1px solid var(--accent-glow);background:var(--accent-subtle);border-radius:var(--radius-sm)}
.tree-node.available:hover{background:var(--accent-hover);border-color:rgba(124,106,255,0.4)}
.tree-node.available .tree-dot{border-color:var(--accent);background:var(--bg-node);box-shadow:0 0 0 4px var(--bg-node),0 0 12px var(--accent-glow);animation:pulse-dot 2s ease-in-out infinite}
.tree-node.available .tree-name{color:var(--text);font-weight:700}

.tree-node.unlocked{cursor:pointer}
.tree-node.unlocked:hover{background:var(--green-bg)}
.tree-node.unlocked .tree-dot{background:var(--green);border-color:var(--green);color:white;box-shadow:0 0 0 4px var(--bg-node),0 0 8px var(--green-glow)}
.tree-node.unlocked .tree-name{color:var(--text-dim)}
.tree-node.milestone.unlocked .tree-dot{box-shadow:0 0 0 4px var(--bg-node),0 0 14px var(--green-glow)}


/* Badges */
.try-badge{background:var(--accent);color:white;padding:4px 12px;border-radius:var(--radius-pill);font-size:0.7rem;font-weight:600;flex-shrink:0;letter-spacing:0.05em;box-shadow:0 2px 12px var(--accent-glow)}
.attempt-count{color:var(--amber);font-size:0.75rem;font-weight:500;flex-shrink:0}
.train-badge{background:var(--green-dim);color:var(--green);padding:4px 12px;border-radius:var(--radius-pill);font-size:0.65rem;font-weight:600;flex-shrink:0;letter-spacing:0.05em}
.unlocked-record{color:var(--text-muted);font-size:0.75rem;font-weight:500;flex-shrink:0;margin-right:4px}

/* ── Training ── */
.train-mode-tag{color:var(--green);font-weight:700}
.training-record{margin:16px 0}
.training-record-title{font-size:0.85rem;font-weight:700;color:var(--accent);margin-bottom:10px}
.training-stats{display:flex;justify-content:space-around;text-align:center}
.training-input{display:flex;gap:12px;align-items:center;margin-top:16px}
.rep-number-input{flex:1;padding:14px 16px;border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text);font-size:1.2rem;font-weight:700;text-align:center;outline:none;transition:border-color var(--transition)}
.rep-number-input:focus{border-color:var(--accent)}

/* ── Step Detail ── */
.step-detail{padding:8px 0}
.step-detail-header{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.step-detail-icon{font-size:2rem}
.step-detail-tier{color:var(--accent);font-size:0.8rem;font-weight:600}
.step-detail-name{font-size:1.5rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:8px}
.step-detail-desc{color:var(--text-dim);font-size:0.95rem;line-height:1.6;margin-bottom:16px}
.step-milestone-badge{display:inline-block;background:var(--amber-badge);color:var(--amber);padding:4px 14px;border-radius:var(--radius-pill);font-size:0.8rem;font-weight:600;margin-bottom:16px}
.step-form-checks{background:var(--green-bg);border:1px solid var(--green-border);border-radius:var(--radius-sm);padding:14px 16px;margin-bottom:12px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.form-checks-title{font-size:0.8rem;font-weight:700;color:var(--green);margin-bottom:6px}
.form-check-item{font-size:0.85rem;color:var(--text-dim);padding:2px 0}
.step-caution{background:var(--amber-dim);border:1px solid var(--amber-border);border-radius:var(--radius-sm);padding:12px 16px;font-size:0.85rem;color:var(--amber);margin-bottom:12px;line-height:1.5;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.step-attempts-info{color:var(--amber);font-size:0.85rem;margin-bottom:16px;padding:10px 14px;background:var(--amber-dim);border-radius:var(--radius-sm)}
.step-question{margin:24px 0;padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center}
.step-question h2{margin-bottom:8px;font-size:1.1rem}

.attempt-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.attempt-buttons:has(.milestone-sub){grid-template-columns:1fr 1fr 1fr}
.attempt-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:24px 12px;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text);cursor:pointer;transition:all var(--transition);backdrop-filter:blur(12px) saturate(150%);-webkit-backdrop-filter:blur(12px) saturate(150%);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.04)}
.attempt-btn .attempt-emoji{font-size:2rem}
.attempt-btn .attempt-label{font-size:0.85rem;font-weight:600}
.attempt-btn.success:hover{border-color:var(--green);background:var(--green-dim)}
.attempt-btn.milestone-sub{border-color:var(--border-accent)}
.attempt-btn.milestone-sub:hover{border-color:var(--accent);background:var(--accent-hover)}
.attempt-btn.fail:hover{border-color:var(--red);background:var(--red-dim)}

/* ── Failure Guidance ── */
.fail-alternatives{margin-top:20px;text-align:left;padding:16px;background:var(--accent-bg);border:1px dashed var(--border-accent);border-radius:var(--radius-sm)}
.fail-alt-title{font-size:0.8rem;font-weight:700;color:var(--accent);margin-bottom:10px}
.fail-alt-step{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 14px;margin-bottom:6px;background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:0.85rem;font-weight:500;cursor:pointer;transition:all var(--transition)}
.fail-alt-step:last-child{margin-bottom:0}
.fail-alt-step:hover{background:var(--accent-hover);border-color:var(--accent)}
.fail-alt-arrow{color:var(--accent);font-weight:700}
.fail-prereq{margin-top:14px;padding:12px 16px;background:var(--green-bg);border:1px solid var(--green-border);border-radius:var(--radius-sm);font-size:0.85rem;color:var(--text-dim);text-align:left;line-height:1.5}
.rep-input-group{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.rep-btn{padding:12px 18px;border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text);font-size:1rem;font-weight:700;cursor:pointer;transition:all var(--transition);min-width:52px}
.rep-btn:hover{border-color:var(--accent);background:var(--accent-hover)}
.fail-prev-best{color:var(--accent);font-size:0.85rem;font-weight:600;margin-top:8px}
.fail-growth{color:var(--green);font-size:0.95rem;font-weight:700;margin:12px 0;padding:12px;background:var(--green-dim);border-radius:var(--radius-sm)}

/* ── Milestone: new paths ── */
.milestone-new-paths{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin:16px 0;text-align:left}
.milestone-new-paths h3{color:var(--accent);font-size:0.9rem;margin-bottom:12px}
.milestone-new-step{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:0.9rem;color:var(--text-dim)}
.milestone-new-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0}

/* ── History ── */
.history-date{font-weight:600;font-size:0.9rem;margin-bottom:8px;color:var(--text)}
.history-item{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--border)}
.history-item:last-child{border-bottom:none}
.history-result{font-size:1.1rem;flex-shrink:0}
.history-icon{font-size:1.1rem;flex-shrink:0}
.history-info{flex:1;display:flex;justify-content:space-between;align-items:center}
.history-step{font-size:0.85rem;font-weight:500}
.history-time{font-size:0.75rem;color:var(--text-muted)}

/* ── Metrics Dashboard ── */
.metrics-card{border:1px solid var(--accent-border);background:var(--accent-subtle);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 4px 30px rgba(0,0,0,0.3)}
.metrics-title{font-size:0.9rem;font-weight:700;color:var(--accent);margin-bottom:12px}
.metrics-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.metric{text-align:center;padding:10px;background:var(--bg-subtle);border-radius:var(--radius-sm)}
.metric-value{display:block;font-size:1.4rem;font-weight:800;color:var(--accent)}
.metric-label{font-size:0.7rem;color:var(--text-muted);margin-top:2px}
.metric-stuck{margin-top:12px;padding:10px 14px;background:var(--amber-dim);border-radius:var(--radius-sm);font-size:0.8rem;color:var(--amber);line-height:1.4}

/* ── Empty State ── */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}
.empty-state .empty-icon{font-size:3rem;margin-bottom:12px}
.empty-state .empty-text{font-size:0.9rem;line-height:1.5}

/* ── Animations ── */
@keyframes pulse-dot{0%,100%{box-shadow:0 0 4px var(--accent-glow)}50%{box-shadow:0 0 16px var(--accent-glow)}}
@keyframes slide-up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

@keyframes ring-fill{from{stroke-dasharray:0,100}to{stroke-dasharray:var(--target-percent),100}}
.animate-in{animation:slide-up 0.3s ease forwards}

/* ── Sensation: Button Press ── */
.attempt-btn,.rep-btn,.btn{transition:transform 80ms ease,box-shadow 80ms ease,background 0.2s}
.attempt-btn:active,.rep-btn:active,.btn:active{transform:scale(0.93);box-shadow:none}

/* ── Unlock Success: Full-screen Moment ── */
.unlock-scene{background:none;border:none;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;text-align:center;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100dvh - 180px)}
.unlock-label{font-size:0.75rem;font-weight:600;color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:24px}
.unlock-step-name{font-size:2rem;font-weight:800;color:var(--text);letter-spacing:-0.03em;line-height:1.2;margin-bottom:12px;transition:all 0.3s}
.unlock-desc{color:var(--text-muted);font-size:0.85rem;max-width:280px;line-height:1.6}
.unlock-divider{width:32px;height:2px;background:var(--accent);margin:32px auto;opacity:0.3;border:none;transition:all 0.3s}
.unlock-new-paths{text-align:left;width:100%;max-width:300px}
.unlock-new-paths h3{font-size:0.7rem;font-weight:600;color:var(--text-muted);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:10px}
.unlock-new-step{padding:6px 0;font-size:0.85rem;color:var(--text-dim)}
.unlock-buttons{display:flex;gap:10px;margin-top:40px;width:100%;max-width:300px}

/* Tier 2: divider becomes visible */
.unlock-scene.tier-2 .unlock-divider{opacity:0.6;width:48px}

/* Tier 3: name gets gradient color */
.unlock-scene.tier-3 .unlock-step-name{background:linear-gradient(135deg,var(--text) 30%,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.unlock-scene.tier-3 .unlock-divider{opacity:0.7;width:48px}

/* Tier 4: ambient glow appears + larger name */
.unlock-scene.tier-4 .unlock-step-name{font-size:2.2rem;background:linear-gradient(135deg,var(--accent),var(--green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.unlock-scene.tier-4 .unlock-divider{opacity:0.8;width:56px;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.unlock-scene.tier-4::before{content:'';position:absolute;top:15%;left:50%;width:240px;height:240px;transform:translateX(-50%);background:radial-gradient(circle,rgba(124,106,255,0.08) 0%,transparent 70%);pointer-events:none;border-radius:50%}

/* Tier 5: full grandeur */
.unlock-scene.tier-5{position:relative}
.unlock-scene.tier-5 .unlock-label{font-size:0.8rem;letter-spacing:0.15em}
.unlock-scene.tier-5 .unlock-step-name{font-size:2.5rem;background:linear-gradient(135deg,var(--accent),var(--green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.unlock-scene.tier-5 .unlock-divider{width:64px;height:2px;opacity:1;background:linear-gradient(90deg,transparent,var(--accent),var(--green),transparent)}
.unlock-scene.tier-5::before{content:'';position:absolute;top:10%;left:50%;width:320px;height:320px;transform:translateX(-50%);background:radial-gradient(circle,rgba(124,106,255,0.1) 0%,rgba(0,230,118,0.04) 50%,transparent 70%);pointer-events:none;border-radius:50%}






/* ── Utility ── */
.hidden{display:none!important} /* stylelint-disable-line declaration-no-important -- JS visibility toggle에 필수 */
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}
.text-center{text-align:center}.text-dim{color:var(--text-dim)}.text-sm{font-size:0.85rem}
.disclaimer{margin-top:24px;padding:12px 16px;font-size:0.75rem;color:var(--text-muted);text-align:center;line-height:1.5}

@media(max-width:360px){#app{padding:12px 12px 90px}.card{padding:18px}.page-title{font-size:1.5rem}}

/* ── Premium: Lock UI (안내적, 비통제적) ── */
.premium-lock{display:flex;flex-direction:column;gap:12px;padding:16px;background:var(--accent-subtle);border:1px dashed var(--accent-border);border-radius:var(--radius-sm);margin:12px 0}
.premium-lock-icon{font-size:1.5rem;flex-shrink:0}
.premium-lock-text{flex:1}
.premium-lock-title{font-weight:700;font-size:0.9rem;color:var(--accent);display:flex;align-items:center;gap:8px}
.premium-lock-desc{font-size:0.8rem;color:var(--text-dim);margin-top:4px;line-height:1.4}
.btn-premium-sm{padding:8px 20px;font-size:0.8rem;background:var(--accent-dim);color:var(--accent);border:1px solid var(--border-accent);border-radius:var(--radius-pill);font-weight:600;cursor:pointer;transition:all var(--transition);align-self:flex-start}
.btn-premium-sm:hover{background:rgba(124,106,255,0.25)}
.premium-badge{display:inline-block;padding:2px 8px;background:linear-gradient(135deg,var(--accent),rgba(0,230,118,0.8));color:white;font-size:0.6rem;font-weight:700;border-radius:10px;letter-spacing:0.05em;vertical-align:middle;margin-left:6px}

/* ── Premium: Toggle ── */
.premium-toggle-card{border-color:var(--accent-border);background:var(--accent-subtle)}
.premium-toggle-row{display:flex;align-items:center;justify-content:space-between}
.premium-toggle-info{display:flex;flex-direction:column;gap:2px}
.premium-toggle-label{font-weight:700;font-size:0.9rem}
.premium-toggle-hint{font-size:0.75rem;color:var(--text-muted)}
.btn-premium-toggle{position:relative;width:52px;height:28px;border-radius:14px;border:2px solid var(--border);background:var(--bg-card);cursor:pointer;transition:all 0.3s;padding:0;flex-shrink:0}
.btn-premium-toggle .toggle-knob{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--text-muted);transition:all 0.3s}
.btn-premium-toggle.active{border-color:var(--accent);background:var(--accent-border)}
.btn-premium-toggle.active .toggle-knob{left:26px;background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
.highlight-pulse{animation:highlightPulse 1.5s ease}
@keyframes highlightPulse{0%{box-shadow:0 0 0 0 rgba(124,106,255,0.4)}40%{box-shadow:0 0 0 12px rgba(124,106,255,0.2)}100%{box-shadow:0 0 0 0 rgba(124,106,255,0)}}

/* ── Insights: Stats ── */
.insights-header{margin-bottom:8px}
.insights-section-title{font-size:0.85rem;font-weight:700;color:var(--text-dim);letter-spacing:0.05em;margin-bottom:12px}
.insights-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.insights-stats .stat{padding:10px 4px;background:var(--bg-subtle);border-radius:var(--radius-sm)}

/* ── Insights: Growth Chart ── */
.growth-chart-card{margin:12px 0;padding:12px;background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm)}
.growth-chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.growth-chart-name{font-weight:600;font-size:0.85rem}
.growth-chart-delta{font-weight:700;font-size:0.85rem;color:var(--text-muted)}
.growth-chart-delta.positive{color:var(--green)}
.growth-chart-delta.negative{color:var(--red)}
.growth-canvas{width:100%;height:80px;display:block}
.growth-chart-range{display:flex;justify-content:space-between;font-size:0.7rem;color:var(--text-muted);margin-top:4px}

/* ── Insights: Progressive Free — Trend Arrows (Lv.2) ── */
.trend-list{display:flex;flex-direction:column;gap:8px}
.trend-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm)}
.trend-name{flex:1;font-weight:600;font-size:0.85rem}
.trend-arrow{font-size:1.2rem;font-weight:800;width:28px;text-align:center}
.trend-label{font-size:0.75rem;font-weight:600;min-width:60px}
.trend-up,.trend-arrow.trend-up{color:var(--green)}
.trend-steady,.trend-arrow.trend-steady{color:var(--amber,#ffb300)}
.trend-down,.trend-arrow.trend-down{color:var(--red)}

/* ── Insights: Progressive Free — Weekly Streak (Lv.3) ── */
.streak-highlight{text-align:center;margin-bottom:12px}
.streak-number{font-size:2.5rem;font-weight:900;color:var(--accent);line-height:1}
.streak-unit{display:block;font-size:0.8rem;color:var(--text-dim);margin-top:2px}
.streak-calendar{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;margin-top:8px}
.streak-cell{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--bg-subtle);border:1px solid var(--border);transition:all 0.3s}
.streak-cell.active{background:var(--accent-dim);border-color:var(--accent);box-shadow:0 0 8px var(--accent-border)}
.streak-week-label{font-size:0.6rem;color:var(--text-muted);font-weight:600}
.streak-cell.active .streak-week-label{color:var(--accent)}

/* ── Insights: Progressive Free — Monthly Comparison (Lv.4) ── */
.monthly-comparison{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:start}
.monthly-col{text-align:center;display:flex;flex-direction:column;gap:4px;padding:12px 8px;background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm)}
.monthly-label{font-size:0.75rem;font-weight:700;color:var(--text-dim);margin-bottom:4px}
.monthly-value{font-size:1.3rem;font-weight:800;color:var(--text)}
.monthly-sub{font-size:0.65rem;color:var(--text-muted);margin-bottom:6px}
.monthly-divider{display:flex;align-items:center;justify-content:center;padding-top:40px}
.monthly-delta{font-weight:800;font-size:1.1rem;color:var(--text-dim)}
.monthly-delta.positive{color:var(--green)}
.monthly-delta.negative{color:var(--red)}

/* ── Insights: Premium CTA ── */
.premium-cta-card{text-align:center;padding:24px 16px;cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;border:1px dashed var(--accent-border)}
.premium-cta-card:active{transform:scale(0.98)}
.premium-cta-icon{font-size:2rem;margin-bottom:8px}
.premium-cta-title{font-weight:700;font-size:0.95rem;color:var(--accent);margin-bottom:4px}
.premium-cta-desc{font-size:0.8rem;color:var(--text-dim);line-height:1.4}
.premium-cta-tapped{border-color:var(--accent);animation:cta-pulse 0.4s ease}
.premium-cta-price{display:inline-block;margin-top:10px;font-size:0.75rem;font-weight:600;color:var(--accent);background:var(--accent-subtle);padding:3px 10px;border-radius:var(--radius-pill);letter-spacing:0.02em}
@keyframes cta-pulse{0%{transform:scale(1)}50%{transform:scale(1.02)}100%{transform:scale(1)}}

/* ── Premium Purchase Modal ── */
.premium-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.8);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1100;display:flex;align-items:flex-end;justify-content:center;opacity:0;transition:opacity 0.25s ease;pointer-events:none}
.premium-modal-overlay.visible{opacity:1;pointer-events:auto}
.premium-modal{position:relative;width:100%;max-width:480px;max-height:90dvh;overflow-y:auto;background:rgba(18,18,28,0.96);backdrop-filter:blur(40px) saturate(180%);-webkit-backdrop-filter:blur(40px) saturate(180%);border:1px solid rgba(255,255,255,0.08);border-radius:24px 24px 0 0;padding:28px 24px calc(24px + env(safe-area-inset-bottom));box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.06),0 -8px 60px rgba(0,0,0,0.4);transform:translateY(100%);transition:transform 0.3s cubic-bezier(0.22,1,0.36,1)}
.premium-modal-overlay.visible .premium-modal{transform:translateY(0)}

/* Close button */
.pm-close{position:absolute;top:16px;right:16px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.06);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-dim);transition:all 0.2s}
.pm-close:hover{background:rgba(255,255,255,0.15);color:var(--text)}

/* Header */
.pm-header{text-align:center;margin-bottom:24px}
.pm-title{font-size:1.4rem;font-weight:800;letter-spacing:-0.02em;background:linear-gradient(135deg,var(--text) 40%,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.3}
.pm-subtitle{color:var(--text-dim);font-size:0.85rem;margin-top:6px;line-height:1.5}

/* Feature list */
.pm-features{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.pm-feature{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;background:var(--surface-1);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius-sm);transition:border-color 0.2s}
.pm-feature:hover{border-color:var(--accent-border)}
.pm-feature-icon{font-size:1.3rem;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--accent-subtle);border-radius:10px}
.pm-feature-info{flex:1}
.pm-feature-name{font-weight:700;font-size:0.88rem;color:var(--text);margin-bottom:2px}
.pm-feature-desc{font-size:0.78rem;color:var(--text-dim);line-height:1.45}

/* Price tag */
.pm-price-tag{text-align:center;font-size:1.1rem;font-weight:800;color:var(--accent);margin-bottom:6px;letter-spacing:-0.01em}
.pm-data-hint{text-align:center;font-size:0.78rem;color:var(--text-muted);margin-bottom:20px;line-height:1.4}
.pm-no-sub{text-align:center;font-size:0.75rem;color:var(--green);font-weight:600;margin-bottom:8px;letter-spacing:0.02em}

/* Form */
.pm-form{display:flex;flex-direction:column;gap:12px;align-items:center}
.pm-buy-btn{font-size:1rem;padding:14px 24px;width:100%}
.pm-buy-btn:disabled{opacity:0.6;cursor:not-allowed;transform:none}
.pm-restore{text-align:center;margin-top:4px}
.pm-restore-btn{background:none;border:none;color:var(--accent);font-size:0.85rem;font-weight:600;cursor:pointer;padding:8px 16px;border-radius:var(--radius-sm);transition:background 0.2s}
.pm-restore-btn:hover{background:var(--accent-subtle)}
.pm-restore-desc{font-size:0.72rem;color:var(--text-muted);margin-top:4px}
.pm-shared-warning{font-size:0.78rem;color:var(--text-secondary);text-align:center;margin-top:10px;line-height:1.4}
.pm-signout{text-align:center;margin-top:12px}
.pm-signout-btn{background:none;border:none;color:var(--text-muted);font-size:0.75rem;cursor:pointer;padding:4px 8px;opacity:0.6;transition:opacity 0.2s}
.pm-signout-btn:hover{opacity:1;text-decoration:underline}
.pm-terms-link{font-size:0.7rem;color:var(--text-muted);text-align:center;margin-top:16px;line-height:1.5}
.pm-terms-link a{color:var(--text-dim);text-decoration:underline}




/* ── Insights: RPE ── */
.rpe-insight-card{padding:12px;background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm);text-align:center}
.rpe-insight-main{display:flex;align-items:baseline;justify-content:center;gap:8px}
.rpe-delta{font-size:2rem;font-weight:800}
.rpe-delta.positive{color:var(--green)}
.rpe-delta.negative{color:var(--red)}
.rpe-delta-label{font-size:0.85rem;color:var(--text-dim)}

/* ── Insights: Journey ── */
.journey-card{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;text-align:center}
.journey-stat{padding:12px 8px;background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm)}
.journey-value{display:block;font-size:1.5rem;font-weight:800;color:var(--accent)}
.journey-label{font-size:0.7rem;color:var(--text-muted);margin-top:2px}

/* ── RPE: Slider (Training View) ── */
.rpe-section{margin-top:16px;padding:16px;background:var(--accent-subtle);border:1px solid var(--accent-dim);border-radius:var(--radius-sm);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.rpe-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.rpe-title{font-weight:600;font-size:0.85rem;color:var(--accent)}
.rpe-value{font-size:1.2rem;font-weight:800;color:var(--accent);min-width:24px;text-align:center}
.rpe-anchor{text-align:center;font-size:0.9rem;font-weight:600;color:var(--text-dim);padding:6px 0;min-height:1.4em;transition:all 0.15s ease}
.rpe-slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--green) 0%,var(--amber) 50%,var(--red) 100%);outline:none;margin:8px 0}
.rpe-slider::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;border-radius:50%;background:white;border:3px solid var(--accent);cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,0.3)}
.rpe-slider::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:white;border:3px solid var(--accent);cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,0.3)}
.rpe-scale{display:flex;justify-content:space-between;font-size:0.7rem;color:var(--text-muted)}
.rpe-prev{font-size:0.8rem;color:var(--text-dim);margin-top:8px;text-align:center}
.rpe-growth{color:var(--green);font-size:0.9rem;font-weight:600;margin-top:12px;padding:10px;background:var(--green-dim);border-radius:var(--radius-sm)}

/* ── Celebrate Effects ── */
.celebrate-check{position:fixed;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:9998;pointer-events:none;opacity:0;transition:opacity 0.2s ease}
.celebrate-check.visible{opacity:1}
.celebrate-check.out{opacity:0;transition:opacity 0.4s ease}
.celebrate-check-svg{width:100px;height:100px;overflow:visible;animation:celebrate-pop 0.5s cubic-bezier(0.34,1.56,0.64,1) forwards}
.celebrate-check-path{stroke-dasharray:40;stroke-dashoffset:40;animation:celebrate-draw-check 0.35s 0.3s ease forwards}
@keyframes celebrate-pop{0%{transform:scale(0)}60%{transform:scale(1.15)}100%{transform:scale(1)}}
@keyframes celebrate-draw-check{to{stroke-dashoffset:0}}

.celebrate-flash{position:fixed;top:0;left:0;width:100%;height:100%;z-index:9997;pointer-events:none;opacity:0;transition:opacity 0.15s ease}
.celebrate-flash.visible{opacity:0.15}

.celebrate-lottie{position:fixed;z-index:9998;pointer-events:none;opacity:1;transition:opacity 0.3s ease}

/* ── Growth Snapshot (성공 결과 화면) ── */
.growth-snapshot{background:var(--accent-muted);border:1px solid var(--accent-dim);border-radius:var(--radius-sm);padding:12px 16px;margin-top:12px;text-align:left}
.growth-snapshot-title{font-size:0.85rem;font-weight:600;color:var(--accent);margin-bottom:4px}
.growth-snapshot-detail{font-size:0.8rem;color:var(--text-dim);line-height:1.5}

/* ── Autonomous Praise Toast ── */
.praise-toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%) translateY(20px);background:rgba(26,26,26,0.92);color:#fff;padding:12px 20px;border-radius:var(--radius-pill);font-size:0.85rem;line-height:1.4;max-width:320px;text-align:center;z-index:10000;opacity:0;transition:opacity 0.4s ease,transform 0.4s ease;pointer-events:none;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.08)}
.praise-toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}

/* ── Activity Heatmap (90일) ── */
.activity-heatmap{display:grid;grid-template-columns:repeat(18,1fr);gap:2px;padding:4px 0;margin-bottom:12px}
.heatmap-cell{aspect-ratio:1;border-radius:2px;background:var(--accent-bg);transition:background 0.2s}
.heatmap-cell.level-1{background:rgba(124,106,255,0.2)}
.heatmap-cell.level-2{background:rgba(124,106,255,0.4)}
.heatmap-cell.level-3{background:rgba(124,106,255,0.65)}
.heatmap-cell.level-4{background:rgba(124,106,255,0.9)}
.heatmap-footer{display:flex;justify-content:space-between;align-items:center;padding:0 2px}
.heatmap-summary{font-size:0.75rem;color:var(--text-dim)}
.heatmap-legend{display:flex;align-items:center;gap:3px}
.heatmap-legend-label{font-size:0.65rem;color:var(--text-dim);opacity:0.6}
.heatmap-cell.legend{width:10px;height:10px;aspect-ratio:auto;border-radius:2px}

/* ── Why Card (스텝 디테일) ── */
.step-why-card{background:rgba(255,215,64,0.06);border:1px solid rgba(255,215,64,0.15);border-radius:var(--radius-sm);padding:12px 16px;margin-top:12px}
.step-why-title{font-size:0.85rem;font-weight:600;color:var(--amber);margin-bottom:4px}
.step-why-text{font-size:0.82rem;color:var(--text-dim);line-height:1.5}

/* ── PWA Install Banner ── */
.install-banner{display:flex;align-items:flex-start;gap:14px;padding:16px 18px;background:var(--accent-bg);border:1px dashed var(--accent-border);border-radius:var(--radius);margin-bottom:16px;animation:slide-up 0.3s ease forwards;position:relative}
.install-banner-icon{font-size:1.6rem;flex-shrink:0;margin-top:2px}
.install-banner-body{flex:1;min-width:0}
.install-banner-title{font-weight:700;font-size:0.9rem;color:var(--accent)}
.install-banner-desc{font-size:0.8rem;color:var(--text-dim);line-height:1.5;margin-top:4px}
.install-banner-actions{display:flex;gap:8px;margin-top:10px}
.install-banner .btn-install{padding:7px 18px;font-size:0.8rem;font-weight:600;background:var(--accent);color:white;border:none;border-radius:var(--radius-pill);cursor:pointer;transition:all var(--transition);box-shadow:0 2px 10px var(--accent-glow)}
.install-banner .btn-install:hover{transform:translateY(-1px);box-shadow:0 4px 16px var(--accent-glow)}
.install-banner .btn-install:active{transform:scale(0.95)}
.install-banner .btn-dismiss{padding:7px 14px;font-size:0.8rem;font-weight:500;background:none;border:none;color:var(--text-muted);cursor:pointer;transition:color var(--transition)}
.install-banner .btn-dismiss:hover{color:var(--text-dim)}
/* iOS Safari: text-only banner (no install button) */
.install-banner.ios .install-banner-desc{margin-bottom:0}
.install-banner.ios .install-banner-actions{display:none}

/* ── Difficulty Context (집단 난이도 맥락 — 무료) ── */
.difficulty-context{background:var(--bg-faint);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;margin:12px 0;animation:slide-up 0.3s ease forwards}
.difficulty-title{font-size:0.8rem;font-weight:600;color:var(--text-muted);margin-bottom:8px}
.difficulty-stats{display:flex;flex-direction:column;gap:4px}
.difficulty-stat{font-size:0.82rem;color:var(--text-dim);line-height:1.4}
.difficulty-stat.dim{font-size:0.75rem;color:var(--text-muted);margin-top:2px}

/* ── Imbalance Detection (프리미엄) ── */
.imbalance-alert,.imbalance-balanced{text-align:center;padding:16px;border-radius:var(--radius-sm);margin-bottom:12px}
.imbalance-alert{background:rgba(251,191,36,0.06);border:1px solid var(--amber-border)}
.imbalance-balanced{background:var(--green-bg);border:1px solid var(--green-border)}
.imbalance-icon{font-size:1.8rem;margin-bottom:6px}
.imbalance-msg{font-weight:600;font-size:0.9rem;margin-bottom:8px}
.imbalance-detail{display:flex;justify-content:center;gap:16px;font-size:0.85rem;font-weight:600}
.imbalance-strong{color:var(--green)}
.imbalance-weak{color:var(--amber)}
.imbalance-bars{display:flex;flex-direction:column;gap:8px}
.imbalance-bar-row{display:flex;align-items:center;gap:8px}
.imbalance-bar-label{width:60px;font-size:0.75rem;font-weight:600;color:var(--text-dim);text-align:right;flex-shrink:0}
.imbalance-bar-track{flex:1;height:8px;background:var(--bg-faint);border-radius:4px;overflow:hidden;border:1px solid var(--border)}
.imbalance-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--green));border-radius:4px;transition:width 0.6s ease}
.imbalance-bar-value{width:45px;font-size:0.75rem;font-weight:700;color:var(--text-dim);flex-shrink:0}

/* ── Plateau Diagnosis (프리미엄) ── */
.plateau-clear{text-align:center;padding:16px}
.plateau-icon{font-size:1.8rem;margin-bottom:6px}
.plateau-item{padding:12px;background:var(--bg-faint);border:1px solid var(--amber-border);border-radius:var(--radius-sm);margin-bottom:8px}
.plateau-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.plateau-name{font-weight:700;font-size:0.9rem}
.plateau-days{font-size:0.75rem;font-weight:600;color:var(--amber);background:var(--amber-dim);padding:2px 10px;border-radius:var(--radius-pill)}
.plateau-stats{display:flex;gap:16px;font-size:0.8rem;color:var(--text-dim);margin-bottom:8px}
.plateau-tip{font-size:0.8rem;color:var(--text-muted);font-style:italic;line-height:1.4}

/* ── Confirm Modal ── */
.confirm-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.75);display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;transition:opacity 0.2s ease}
.confirm-overlay.visible{opacity:1}
.confirm-dialog{background:#1a1a24;border:1px solid var(--card-border);border-radius:var(--radius);padding:24px;max-width:320px;width:90%;text-align:center;transform:scale(0.9);transition:transform 0.2s ease}
.confirm-overlay.visible .confirm-dialog{transform:scale(1)}
.confirm-message{font-size:0.95rem;color:var(--text-main);margin-bottom:20px;line-height:1.5}
.confirm-buttons{display:flex;gap:12px;justify-content:center}
.confirm-buttons .btn{flex:1;min-width:0}

/* ── Hero Header: Gradient text + stat chips (P1-D) ── */
.hero-title{font-size:1.75rem;font-weight:800;letter-spacing:-0.03em;background:linear-gradient(135deg,var(--text) 40%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.hero-stats{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.hero-chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:var(--radius-pill);background:var(--surface-1);border:1px solid var(--border);font-size:0.75rem;color:var(--text-dim);font-weight:500;font-variant-numeric:tabular-nums}
.hero-chip .chip-value{color:var(--accent);font-weight:700}
.hero-chip .chip-value.green{color:var(--green)}

/* ── Tabular numerals: global numeric classes (P2-H) ── */
.metric-value,.journey-value,.streak-number,.monthly-value,.rpe-delta{font-variant-numeric:tabular-nums}

/* ── Focus-visible: accessible halo (P2-I, Apple glass) ── */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.nav-item:focus-visible{outline-offset:4px;border-radius:16px}
.btn:focus-visible,.attempt-btn:focus-visible,.rep-btn:focus-visible{outline-offset:3px}

/* ── Reduced motion: respect user preference (P2-J, WCAG C39) ── */
@media(prefers-reduced-motion:reduce){
  /* stylelint-disable-next-line declaration-no-important -- WCAG 2.1 standard pattern */
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important;scroll-behavior:auto!important}
}

/* ── Anti-Slop: Inline SVG icon system (replacing emojis) ── */
.icon-inline{display:inline-flex;align-items:center;justify-content:center;width:1em;height:1em;vertical-align:-0.125em;flex-shrink:0}
.icon-inline svg{width:100%;height:100%}
/* Result scene icon: large centered SVG */
.result-icon{width:48px;height:48px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;border-radius:50%;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.result-icon.success{background:rgba(0,230,118,0.12);border:1px solid rgba(0,230,118,0.2);color:var(--green)}
.result-icon.record{background:rgba(124,106,255,0.12);border:1px solid rgba(124,106,255,0.2);color:var(--accent)}
.result-icon.effort{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);color:var(--text-dim)}
.result-icon.fire{background:rgba(251,191,36,0.12);border:1px solid rgba(251,191,36,0.2);color:var(--amber)}
.result-icon svg{width:24px;height:24px}

/* History: SVG status icons */
.history-result svg{width:16px;height:16px}
.history-result.success{color:var(--green)}
.history-result.fail{color:var(--red)}

/* Section title prefix: subtle text icon instead of emoji */
.section-prefix{font-weight:700;margin-right:4px;color:var(--accent);font-size:0.85rem}

/* Training record: glass effect */
.training-record.card{backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%)}

/* Pattern icon SVG colour */
.pattern-icon-svg{width:24px;height:24px;color:var(--accent)}

/* ── Universal Profile Badge ── */
.user-badge-container{display:flex;justify-content:flex-end;padding:12px 20px 0;position:absolute;top:0;right:0;z-index:90}
.user-badge{display:flex;align-items:center;justify-content:center;height:36px;padding:0 12px;border-radius:18px;background:var(--bg-card);border:1px solid var(--border);cursor:pointer;transition:all var(--transition);gap:8px}
.user-badge:hover{background:var(--surface-2);border-color:rgba(255,255,255,0.12)}
.user-badge:active{transform:scale(0.96)}

.user-badge.anon{padding:0 8px;width:36px;color:var(--text-dim)}
.user-badge.free{border-color:var(--border-accent)}
.user-badge.premium{border-color:var(--accent);background:var(--accent-subtle);box-shadow:0 0 12px var(--accent-glow)}

.avatar-initial{font-weight:700;font-size:0.9rem;color:var(--text)}
.user-badge.premium .avatar-initial{color:var(--accent)}

.status-dot{width:8px;height:8px;border-radius:50%}
.status-dot.green{background:var(--green);box-shadow:0 0 6px var(--green-glow)}

.status-pro{font-size:0.6rem;font-weight:700;letter-spacing:0.05em;color:white;background:linear-gradient(135deg,var(--accent),rgba(0,230,118,0.8));padding:2px 8px;border-radius:10px;box-shadow:0 0 8px rgba(0,230,118,0.3)}

/* Profile Modal Styles */
.profile-dialog{padding:32px 24px}
.profile-header{display:flex;flex-direction:column;align-items:center;gap:12px}
.avatar{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem;background:var(--surface-1);border:2px solid var(--border)}
.avatar.anon{color:var(--text-dim)}
.avatar.free{border-color:var(--green);color:var(--text);box-shadow:0 0 16px var(--green-glow)}
.avatar.premium{border-color:var(--accent);color:var(--accent);box-shadow:0 0 20px var(--accent-glow);background:var(--accent-subtle)}
.profile-title{font-size:1.2rem;font-weight:700;color:var(--text)}
.profile-desc{font-size:0.85rem;color:var(--text-dim);line-height:1.5;margin-top:4px}


/* ════════════════════════════════════════════════════════════════
   FROSTED GLASS LIGHT — Warm Ivory (Cult/Indie × Glass)
   ▸ prefers-color-scheme: light 자동 전환
   ▸ Glass 미학 유지 + 따뜻한 아이보리 크림 표면
   ▸ Anti-Slop: 순백(#fff) 금지, 따뜻한 크림 톤 사용
   ════════════════════════════════════════════════════════════════ */
@media(prefers-color-scheme:light){
  :root{
    /* ── Background: warm ivory, not pure white ── */
    --bg:#f8f6f1;
    --bg-card:rgba(0,0,0,0.025);--bg-card-hover:rgba(0,0,0,0.045);
    --bg-subtle:rgba(0,0,0,0.02);--bg-faint:rgba(0,0,0,0.015);
    --bg-node:#f8f6f1;

    /* ── Surface: frosted ivory glass ── */
    --surface-0:rgba(255,251,244,0.5);--surface-1:rgba(255,251,244,0.7);--surface-2:rgba(255,251,244,0.85);

    /* ── Borders: warm gray, not cool ── */
    --border:rgba(0,0,0,0.08);--border-accent:rgba(100,80,220,0.25);

    /* ── Text: warm dark, not pure black ── */
    --text:#1a1a2e;--text-dim:#556;--text-muted:#8888a0;

    /* ── Accent: slightly warmer purple for light ── */
    --accent:#6450dc;--accent-glow:rgba(100,80,220,0.2);
    --accent-subtle:rgba(100,80,220,0.04);--accent-bg:rgba(100,80,220,0.06);
    --accent-muted:rgba(100,80,220,0.08);
    --accent-hover:rgba(100,80,220,0.1);--accent-dim:rgba(100,80,220,0.12);
    --accent-border:rgba(100,80,220,0.18);

    /* ── Semantic: slightly darker for light bg contrast ── */
    --green:#059669;--green-glow:rgba(5,150,105,0.15);--green-dim:rgba(5,150,105,0.08);
    --green-bg:rgba(5,150,105,0.06);--green-border:rgba(5,150,105,0.15);
    --amber:#d97706;--amber-dim:rgba(217,119,6,0.08);--amber-border:rgba(217,119,6,0.2);--amber-badge:rgba(217,119,6,0.12);
    --red:#dc2626;--red-dim:rgba(220,38,38,0.1);
  }

  /* ── Body: warm atmospheric gradient (peach-lavender) ── */
  body{background:var(--bg);color:var(--text)}
  body::before{
    background:radial-gradient(ellipse 80% 60% at 70% 15%,rgba(255,200,160,0.12) 0%,transparent 65%),
               radial-gradient(ellipse 60% 50% at 25% 85%,rgba(180,160,240,0.08) 0%,transparent 55%),
               radial-gradient(ellipse 40% 40% at 50% 50%,rgba(255,220,190,0.06) 0%,transparent 70%)}
  body::after{opacity:0.015}

  /* ── Card: frosted ivory glass ── */
  .card{border-color:rgba(0,0,0,0.06);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.7),0 2px 16px rgba(0,0,0,0.06)}
  .card:hover{border-color:rgba(0,0,0,0.1)}

  /* ── Nav: frosted cream dock ── */
  .nav-bar{background:rgba(255,251,244,0.8);border-color:rgba(0,0,0,0.06);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.8),0 4px 24px rgba(0,0,0,0.08)}

  /* ── Pattern cards ── */
  .pattern-card.card-active{box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.7),0 2px 16px rgba(0,0,0,0.06),0 0 16px rgba(100,80,220,0.06)}
  .pattern-card.card-complete{background:rgba(5,150,105,0.04)}

  /* ── Progress ring ── */
  .progress-ring-bg{stroke:rgba(0,0,0,0.06)}

  /* ── Skill tree ── */
  .tree-dot{border-color:rgba(0,0,0,0.1);box-shadow:0 0 0 4px var(--bg-node)}
  .tree-node.milestone .tree-dot{border-color:rgba(0,0,0,0.12)}
  .tree-node.locked .tree-dot{border-color:rgba(0,0,0,0.05)}
  .tree-node.available .tree-dot{box-shadow:0 0 0 4px var(--bg-node),0 0 10px var(--accent-glow)}
  .tree-node.unlocked .tree-dot{color:white;box-shadow:0 0 0 4px var(--bg-node),0 0 6px var(--green-glow)}
  .tree-node.milestone.unlocked .tree-dot{box-shadow:0 0 0 4px var(--bg-node),0 0 10px var(--green-glow)}
  .choice-node.available:hover{background:rgba(100,80,220,0.08)}

  /* ── Buttons ── */
  .btn-primary{color:white}

  /* ── Praise Toast ── */
  .praise-toast{background:rgba(255,251,244,0.92);color:var(--text);border-color:rgba(0,0,0,0.08)}

  /* ── Confirm Modal ── */
  .confirm-overlay{background:rgba(0,0,0,0.3)}
  .confirm-dialog{background:#faf8f2;border-color:rgba(0,0,0,0.08)}

  /* ── Result icons ── */
  .result-icon.success{background:rgba(5,150,105,0.1);border-color:rgba(5,150,105,0.15)}
  .result-icon.record{background:rgba(100,80,220,0.1);border-color:rgba(100,80,220,0.15)}
  .result-icon.effort{background:rgba(0,0,0,0.03);border-color:rgba(0,0,0,0.06);color:var(--text-dim)}
  .result-icon.fire{background:rgba(217,119,6,0.1);border-color:rgba(217,119,6,0.15)}

  /* ── Glass surfaces: inner-highlight adaptation ── */
  .pattern-pill{box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.6)}
  .pattern-pill.active{box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.7),0 0 10px var(--accent-glow)}
  .metrics-card{box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.7),0 2px 16px rgba(0,0,0,0.06)}
  .attempt-btn{box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.6)}

  /* ── Heatmap: warm accent tones ── */
  .heatmap-cell.level-1{background:rgba(100,80,220,0.15)}
  .heatmap-cell.level-2{background:rgba(100,80,220,0.3)}
  .heatmap-cell.level-3{background:rgba(100,80,220,0.5)}
  .heatmap-cell.level-4{background:rgba(100,80,220,0.75)}

  /* ── Why card: warm amber tint ── */
  .step-why-card{background:rgba(217,119,6,0.05);border-color:rgba(217,119,6,0.12)}

  /* ── Install banner: light mode ── */
  .install-banner{background:rgba(100,80,220,0.04);border-color:rgba(100,80,220,0.18)}

  /* ── Pattern icon: lighter accent bg ── */
  .pattern-icon{background:rgba(100,80,220,0.08);border-color:rgba(100,80,220,0.12)}

  /* ── Premium badge gradient: darker for contrast ── */
  .premium-badge{background:linear-gradient(135deg,var(--accent),rgba(5,150,105,0.85))}
  .status-pro{background:linear-gradient(135deg,var(--accent),rgba(5,150,105,0.85))}

  /* ── Highlight pulse: light-safe glow ── */
  @keyframes highlightPulse{0%{box-shadow:0 0 0 0 rgba(100,80,220,0.3)}40%{box-shadow:0 0 0 12px rgba(100,80,220,0.15)}100%{box-shadow:0 0 0 0 rgba(100,80,220,0)}}

  /* ── Tier unlock ambient glow (light-safe) ── */
  .unlock-scene.tier-4::before{background:radial-gradient(circle,rgba(100,80,220,0.06) 0%,transparent 70%)}
  .unlock-scene.tier-5::before{background:radial-gradient(circle,rgba(100,80,220,0.08) 0%,rgba(5,150,105,0.03) 50%,transparent 70%)}

  /* ── Pulse dot animation ── */
  @keyframes pulse-dot{0%,100%{box-shadow:0 0 3px var(--accent-glow)}50%{box-shadow:0 0 12px var(--accent-glow)}}

  /* ── RPE slider thumb: stays white on light (intentional contrast) ── */

  /* ── Hero gradient text: adapt for light ── */
  .hero-title{background:linear-gradient(135deg,var(--text) 40%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text}

  /* ── Celebrate flash: subtle on light ── */
  .celebrate-flash.visible{opacity:0.08}

  /* ── Skill tree gradient connector ── */
  .skill-tree::before{background:linear-gradient(to bottom,var(--green) 0%,var(--accent) 50%,rgba(100,80,220,0.15) 100%)}

  /* ── Imbalance bar gradient ── */
  .imbalance-bar-fill{background:linear-gradient(90deg,var(--accent),var(--green))}

  /* ── Premium modal: warm ivory adaptation ── */
  .premium-modal-overlay{background:rgba(0,0,0,0.4)}
  .premium-modal{background:rgba(255,251,244,0.97);border-color:rgba(0,0,0,0.08);box-shadow:inset 0 0.5px 0 rgba(255,255,255,0.8),0 -4px 40px rgba(0,0,0,0.1)}
  .pm-close{background:rgba(0,0,0,0.05);border-color:rgba(0,0,0,0.06);color:var(--text-dim)}
  .pm-close:hover{background:rgba(0,0,0,0.1)}
  .pm-feature{background:rgba(0,0,0,0.025);border-color:rgba(0,0,0,0.06)}
  .pm-email-input{background:rgba(0,0,0,0.025);border-color:rgba(0,0,0,0.1)}
}