/* ═══ STORY SCROLLER ═══════════════════════════════════════════════════ */
.ex-story{position:relative;padding:96px 0 80px;background:#0a0f1c;color:#e8eef7;overflow:hidden;isolation:isolate}
.ex-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.ex-story-bg{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#0a0f1c 0%,#0d1424 100%)}
.ex-story-orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.4}
.ex-story-orb-1{width:500px;height:500px;background:#34d399;top:-150px;left:-150px;animation:storyOrb 18s ease-in-out infinite}
.ex-story-orb-2{width:400px;height:400px;background:#60a5fa;bottom:-100px;right:-100px;animation:storyOrb 22s ease-in-out infinite reverse}
@keyframes storyOrb{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,30px) scale(1.1)}}

/* Header */
.ex-story-head{max-width:760px;margin:0 auto 56px;padding:0 24px;text-align:center}
.ex-story-eyebrow{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#34d399;padding:6px 14px;border:1px solid rgba(52,211,153,.3);border-radius:999px;background:rgba(52,211,153,.06);margin-bottom:18px}
.ex-story-title{font-size:clamp(2rem,4.5vw,3rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin:0 0 14px}
.ex-story-grad{background:linear-gradient(135deg,#34d399 0%,#60a5fa 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.ex-story-sub{font-size:1.05rem;color:#94a3b8;margin:0 0 28px}

/* Input form */
.ex-story-form{margin-top:8px}
.ex-story-input-wrap{position:relative;display:flex;align-items:center;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:6px 6px 6px 22px;transition:border-color .25s,box-shadow .25s;max-width:560px;margin:0 auto}
.ex-story-input-wrap:focus-within{border-color:rgba(52,211,153,.5);box-shadow:0 0 0 4px rgba(52,211,153,.1)}
.ex-story-input-ico{font-size:1.1rem;margin-right:8px;opacity:.7}
#ex-story-input{flex:1;background:transparent;border:0;color:#e8eef7;font-size:1rem;padding:14px 8px;outline:none;font-family:inherit;min-width:0}
#ex-story-input::placeholder{color:#64748b}
.ex-story-submit{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 22px;background:linear-gradient(135deg,#34d399,#60a5fa);color:#0a0f1c;font-weight:700;font-size:.92rem;border:0;border-radius:999px;cursor:pointer;transition:transform .25s,box-shadow .25s;white-space:nowrap;font-family:inherit}
.ex-story-submit:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(52,211,153,.3)}
.ex-story-submit:disabled{opacity:.7;cursor:wait}
.ex-story-submit-load{display:inline-flex;gap:4px}
.ex-story-dot{width:6px;height:6px;border-radius:50%;background:#0a0f1c;animation:storyDot 1.2s infinite ease-in-out both}
.ex-story-dot:nth-child(2){animation-delay:.15s}
.ex-story-dot:nth-child(3){animation-delay:.3s}
@keyframes storyDot{0%,80%,100%{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}

.ex-story-suggest{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:16px;font-size:.82rem;color:#64748b}
.ex-story-chip{padding:6px 14px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:999px;color:#cbd5e1;font-size:.82rem;cursor:pointer;transition:all .2s;font-family:inherit}
.ex-story-chip:hover{background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.3);color:#34d399}

/* Progress rail */
.ex-story-rail{position:relative;max-width:680px;margin:0 auto 40px;padding:0 24px;height:32px}
.ex-story-rail::before{content:'';position:absolute;top:50%;left:36px;right:36px;height:2px;background:rgba(255,255,255,.08);transform:translateY(-50%)}
.ex-story-rail-fill{position:absolute;top:50%;left:36px;height:2px;background:linear-gradient(90deg,#34d399,#60a5fa);transform:translateY(-50%);width:8%;transition:width .6s cubic-bezier(.4,0,.2,1);box-shadow:0 0 12px rgba(52,211,153,.5)}
.ex-story-rail-dots{position:relative;display:flex;justify-content:space-between;align-items:center;height:100%;padding:0 12px}
.ex-story-rail-dot{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:#0a0f1c;border:2px solid rgba(255,255,255,.15);color:#64748b;font-size:.72rem;font-weight:700;transition:all .35s}
.ex-story-rail-dot.is-active{border-color:#34d399;color:#0a0f1c;background:linear-gradient(135deg,#34d399,#60a5fa);box-shadow:0 0 16px rgba(52,211,153,.4);transform:scale(1.1)}
.ex-story-rail-dot.is-done{border-color:#34d399;color:#34d399}

/* Track */
.ex-story-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:0 max(24px,calc((100vw - 880px)/2)) 32px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.ex-story-track::-webkit-scrollbar{display:none}

.ex-chapter{flex:0 0 min(880px,calc(100vw - 48px));scroll-snap-align:center;position:relative;padding:48px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:24px;min-height:440px;display:flex;flex-direction:column;overflow:hidden;transition:transform .5s,border-color .5s}
.ex-chapter.is-current{border-color:rgba(52,211,153,.25);box-shadow:0 20px 60px rgba(0,0,0,.3)}

.ex-chapter-num{position:absolute;top:24px;right:32px;font-size:5rem;font-weight:900;color:rgba(255,255,255,.04);letter-spacing:-.05em;line-height:1;pointer-events:none}
.ex-chapter-tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;padding:5px 12px;border-radius:999px;background:rgba(52,211,153,.08);color:#34d399;border:1px solid rgba(52,211,153,.25);margin-bottom:18px;align-self:flex-start}
.ex-chapter-leak .ex-chapter-tag{background:rgba(239,68,68,.08);color:#f87171;border-color:rgba(239,68,68,.25)}
.ex-chapter-title{font-size:clamp(1.6rem,2.8vw,2.1rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:0 0 16px;color:#fff;transition:opacity .35s}
.ex-chapter-body{font-size:1.05rem;line-height:1.6;color:#cbd5e1;margin:0 0 24px;max-width:560px;transition:opacity .35s}
.ex-chapter.is-loading .ex-chapter-title,
.ex-chapter.is-loading .ex-chapter-body{opacity:.4}

/* Chapter 1 — Leak */
.ex-chapter-stat{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.25);border-radius:12px;color:#f87171;font-weight:700;font-size:.95rem;align-self:flex-start;margin-top:auto}
.ex-chapter-stat-pulse{width:10px;height:10px;border-radius:50%;background:#f87171;box-shadow:0 0 0 0 rgba(239,68,68,.5);animation:storyPulse 1.8s infinite}
@keyframes storyPulse{0%{box-shadow:0 0 0 0 rgba(239,68,68,.6)}70%{box-shadow:0 0 0 14px rgba(239,68,68,0)}100%{box-shadow:0 0 0 0 rgba(239,68,68,0)}}
.ex-leak-visual{position:absolute;bottom:32px;right:48px;width:80px;height:120px;pointer-events:none;opacity:.5}
.ex-leak-drop{position:absolute;top:0;width:8px;height:8px;background:#f87171;border-radius:50% 50% 50% 0;transform:rotate(-45deg);animation:storyDrop 2.4s infinite}
.ex-leak-drop:nth-child(1){left:20%;animation-delay:0s}
.ex-leak-drop:nth-child(2){left:50%;animation-delay:.8s}
.ex-leak-drop:nth-child(3){left:80%;animation-delay:1.6s}
@keyframes storyDrop{0%{top:0;opacity:0}10%{opacity:1}90%{opacity:1}100%{top:100%;opacity:0}}

/* Chapter 2 — Fix */
.ex-chapter-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:linear-gradient(135deg,rgba(52,211,153,.12),rgba(99,102,241,.12));border:1px solid rgba(52,211,153,.3);border-radius:12px;color:#34d399;font-weight:700;font-size:.95rem;align-self:flex-start;margin-top:auto}
.ex-chapter-badge::before{content:'⚡';font-size:1rem}
.ex-fix-visual{position:absolute;bottom:32px;right:48px;width:280px;height:80px;pointer-events:none;display:none}
@media (min-width:900px){.ex-fix-visual{display:block}}
.ex-fix-node{position:absolute;top:50%;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.05);border:1px solid rgba(52,211,153,.3);display:flex;align-items:center;justify-content:center;font-size:1.2rem;transform:translateY(-50%);animation:storyNode 2.4s infinite}
.ex-fix-node-1{left:0;animation-delay:0s}
.ex-fix-node-2{left:50%;transform:translate(-50%,-50%);animation-delay:.8s}
.ex-fix-node-3{right:0;animation-delay:1.6s}
@keyframes storyNode{0%,100%{box-shadow:0 0 0 0 rgba(52,211,153,.4)}50%{box-shadow:0 0 0 8px rgba(52,211,153,0)}}
.ex-fix-lines{position:absolute;inset:0;width:100%;height:100%}
.ex-fix-lines path{animation:storyDash 2s linear infinite}
@keyframes storyDash{to{stroke-dashoffset:-16}}

/* Chapter 3 — Flow */
.ex-flow-steps{list-style:none;margin:auto 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;counter-reset:flow}
.ex-flow-steps li{counter-increment:flow;position:relative;padding:18px 18px 18px 56px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:14px;transition:all .3s}
.ex-flow-steps li::before{content:counter(flow);position:absolute;left:14px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#34d399,#60a5fa);color:#0a0f1c;font-weight:800;font-size:.85rem;display:flex;align-items:center;justify-content:center}
.ex-flow-steps li:hover{border-color:rgba(52,211,153,.3);transform:translateY(-2px)}
.ex-flow-ico{display:none}
.ex-flow-steps strong{display:block;color:#fff;font-size:.95rem;font-weight:700;margin-bottom:2px}
.ex-flow-steps em{font-style:normal;font-size:.82rem;color:#94a3b8}

/* Chapter 4 — Result */
.ex-chapter-metric{display:inline-block;padding:14px 22px;background:linear-gradient(135deg,rgba(52,211,153,.15),rgba(99,102,241,.15));border:1px solid rgba(52,211,153,.3);border-radius:14px;font-size:1.4rem;font-weight:800;background-clip:padding-box;color:#34d399;align-self:flex-start;margin:0 0 22px;letter-spacing:-.01em}
.ex-chapter-cta{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;background:linear-gradient(135deg,#34d399,#60a5fa);color:#0a0f1c;font-weight:700;text-decoration:none;border-radius:999px;transition:transform .25s,box-shadow .25s;align-self:flex-start;margin-top:auto;box-shadow:0 8px 24px rgba(52,211,153,.25)}
.ex-chapter-cta:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(52,211,153,.4)}
.ex-chapter-cta span{transition:transform .25s}
.ex-chapter-cta:hover span{transform:translateX(4px)}

/* Mobile nav arrows */
.ex-story-nav{display:flex;justify-content:center;gap:12px;margin-top:8px}
.ex-story-prev,.ex-story-next{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#e8eef7;font-size:1.4rem;cursor:pointer;transition:all .25s;display:flex;align-items:center;justify-content:center;line-height:1}
.ex-story-prev:hover,.ex-story-next:hover{background:rgba(52,211,153,.1);border-color:rgba(52,211,153,.4);transform:scale(1.05)}
.ex-story-prev:disabled,.ex-story-next:disabled{opacity:.3;cursor:not-allowed;transform:none}

/* Mobile */
@media (max-width:768px){
  .ex-story{padding:64px 0}
  .ex-story-input-wrap{flex-direction:column;border-radius:18px;padding:8px;align-items:stretch}
  #ex-story-input{padding:14px 18px}
  .ex-story-submit{width:100%;padding:14px}
  .ex-story-input-ico{display:none}
  .ex-chapter{padding:32px 24px;min-height:420px}
  .ex-chapter-num{font-size:3.5rem;top:16px;right:20px}
  .ex-leak-visual,.ex-fix-visual{display:none}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  .ex-story-orb,.ex-leak-drop,.ex-fix-node,.ex-fix-lines path,.ex-chapter-stat-pulse{animation:none}
  .ex-story-track{scroll-behavior:auto}
}