/* Scroll-driven drone story */
.story { position: relative; }
.story-stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; background: #05080c; }
.story-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.story-dust { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; mix-blend-mode: screen; opacity: 0.7; }
.story-shade { position: absolute; inset: 0; pointer-events: none; background:
  linear-gradient(180deg, rgba(5, 8, 12, 0.55) 0%, rgba(5, 8, 12, 0) 22%, rgba(5, 8, 12, 0) 58%, rgba(5, 8, 12, 0.72) 100%),
  linear-gradient(90deg, rgba(5, 8, 12, 0.45) 0%, rgba(5, 8, 12, 0) 40%),
  radial-gradient(130% 100% at 50% 45%, transparent 55%, rgba(0, 0, 0, 0.55)); }
.letterbox { position: absolute; left: 0; right: 0; height: 0; background: #000; z-index: 3; pointer-events: none; }
.letterbox.top { top: 0; }
.letterbox.bot { bottom: 0; }

/* loader */
.story-loader { position: absolute; inset: 0; z-index: 20; display: grid; place-items: center; background: #05080c; transition: opacity 1s var(--ease), visibility 1s; }
.story-loader.done { opacity: 0; visibility: hidden; }
.story-loader .ring { width: 88px; height: 88px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--gold) calc(var(--p, 0) * 1%), rgba(255, 255, 255, 0.08) 0); -webkit-mask: radial-gradient(circle, transparent 40px, #000 41px); mask: radial-gradient(circle, transparent 40px, #000 41px); }
.story-loader .lbl { margin-top: 18px; font: 700 0.7rem/1 var(--font-ui); letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); text-align: center; }

/* intro title */
.story-intro { position: absolute; inset: 0; z-index: 6; display: grid; align-content: end; padding: 0 var(--gutter) clamp(90px, 14vh, 150px); pointer-events: none; }
.story-intro::before { content: ''; position: absolute; inset: 0; z-index: -1; background:
  linear-gradient(90deg, rgba(5, 8, 12, 0.82) 0%, rgba(5, 8, 12, 0.6) 38%, rgba(5, 8, 12, 0.15) 70%, transparent 85%),
  linear-gradient(0deg, rgba(5, 8, 12, 0.85) 0%, rgba(5, 8, 12, 0.35) 45%, transparent 70%); }
.story-intro .inner { position: relative; max-width: 1100px; margin-left: clamp(0px, 6vw, 110px); }
.story-intro .kicker { display: inline-flex; gap: 12px; align-items: center; padding: 10px 18px; margin-bottom: 22px; font: 700 0.72rem/1 var(--font-ui); letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold-light); }
.story-intro .kicker i { width: 8px; height: 8px; border-radius: 50%; background: #ff4d4d; box-shadow: 0 0 0 4px rgba(255, 77, 77, 0.22); animation: rec 1.4s ease-in-out infinite; }
@keyframes rec { 50% { opacity: 0.3; } }
.story-intro h1 { font-size: clamp(2.4rem, min(8.4vw, 12vh), 8.4rem); line-height: 0.95; font-weight: 600; color: #fff; text-shadow: 0 2px 4px rgba(0, 0, 0, 0.45), 0 10px 40px rgba(0, 0, 0, 0.6); }
.story-intro h1 em { font-style: italic; background: linear-gradient(180deg, #fff3d6 0%, #ecd3a0 45%, #d4b075 100%); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: none; filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.55)) drop-shadow(0 8px 28px rgba(0, 0, 0, 0.5)); }
.story-intro p { margin-top: 20px; max-width: 54ch; color: #fff; font-weight: 500; font-size: clamp(1rem, 1.3vw, 1.2rem); text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7), 0 2px 20px rgba(0, 0, 0, 0.6); }
.story-intro .kicker { color: #f3e3bf; background: rgba(10, 14, 20, 0.55); }
.scroll-cue { position: absolute; z-index: 6; left: 50%; bottom: 28px; transform: translateX(-50%); display: grid; justify-items: center; gap: 10px; font: 700 0.64rem/1 var(--font-ui); letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-3); pointer-events: none; }
.scroll-cue .mouse { width: 24px; height: 38px; border-radius: 14px; box-shadow: 0 0 0 1.5px rgba(255, 255, 255, 0.5) inset; position: relative; }
.scroll-cue .mouse::after { content: ''; position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px; background: var(--gold); animation: wheel 1.8s var(--ease) infinite; }
@keyframes wheel { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }

/* HUD */
.hud { position: absolute; inset: 0; z-index: 8; pointer-events: none; }
.hud-rail { position: absolute; left: clamp(14px, 2vw, 28px); top: 50%; transform: translateY(-50%); padding: 14px 10px; display: grid; gap: 2px; pointer-events: auto; border-radius: 20px; }
.hud-rail button { display: grid; grid-template-columns: 22px auto; align-items: center; gap: 8px; padding: 7px 10px; border: 0; background: none; color: var(--text-3); cursor: pointer; border-radius: 10px; text-align: left; transition: color 0.3s, background 0.3s; }
.hud-rail button b { font: 700 0.64rem/1 var(--font-ui); letter-spacing: 0.08em; }
.hud-rail button span { font: 600 0.74rem/1 var(--font-ui); letter-spacing: 0.06em; max-width: 0; overflow: hidden; white-space: nowrap; opacity: 0; transition: max-width 0.5s var(--ease), opacity 0.4s; }
.hud-rail:hover button span, .hud-rail button.on span { max-width: 140px; opacity: 1; }
.hud-rail button:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.hud-rail button.on { color: var(--gold-light); }
.hud-rail button.on b::before { content: ''; display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px var(--gold); vertical-align: 1px; }

.hud-tele { position: absolute; right: clamp(14px, 2vw, 28px); top: calc(var(--header-h) + 34px); padding: 16px 18px; min-width: 250px; display: grid; gap: 8px; font: 600 0.7rem/1.2 'Manrope', monospace; letter-spacing: 0.1em; text-transform: uppercase; }
.hud-tele .row { display: flex; justify-content: space-between; gap: 18px; color: var(--text-3); }
.hud-tele .row b { color: var(--text); font-variant-numeric: tabular-nums; font-weight: 700; }
.hud-tele .loc { color: var(--gold-light); font-size: 0.74rem; padding-bottom: 8px; margin-bottom: 2px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 8px; }
.hud-tele .loc i { width: 7px; height: 7px; border-radius: 50%; background: #ff4d4d; animation: rec 1.4s infinite; }

.hud-bottom { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); width: min(560px, calc(100% - 32px)); padding: 12px 18px; display: flex; align-items: center; gap: 14px; }
.hud-bottom .count { font: 700 0.72rem/1 var(--font-ui); letter-spacing: 0.14em; color: var(--text-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.hud-bottom .count b { color: var(--gold-light); }
.hud-track { position: relative; flex: 1; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, 0.14); }
.hud-track .fill { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--gold-deep), var(--gold-light)); box-shadow: 0 0 12px rgba(201, 169, 110, 0.8); }
.hud-track .tick { position: absolute; top: 50%; width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; border-radius: 50%; background: #2a3446; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25); }
.hud-track .tick.on { background: var(--gold); }

/* chapter cards */
.chapters { position: absolute; inset: 0; z-index: 7; pointer-events: none; }
.ch { position: absolute; top: 50%; left: clamp(90px, 12vw, 200px); width: min(520px, calc(100% - 32px)); padding: clamp(24px, 2.6vw, 34px); opacity: 0; visibility: hidden; transform: translateY(-50%); will-change: transform, opacity; }
.ch.right { left: auto; right: clamp(20px, 5vw, 80px); }
.ch.is-live { pointer-events: auto; }
.ch .num { font: 500 0.95rem/1 var(--font-display); color: var(--gold); letter-spacing: 0.1em; display: flex; align-items: center; gap: 12px; }
.ch .num::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(201, 169, 110, 0.6), transparent); }
.ch h2 { font-size: clamp(2rem, 3.4vw, 3.1rem); margin: 14px 0 12px; }
.ch p { font-size: 0.98rem; }
.ch .mini-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; margin-top: 18px; }
.ch .mini-stats div { padding: 12px 14px; border-radius: 14px; background: rgba(255, 255, 255, 0.05); box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08) inset; }
.ch .mini-stats b { display: block; font: 500 1.7rem/1 var(--font-display); color: var(--gold-light); }
.ch .mini-stats span { font: 600 0.64rem/1.3 var(--font-ui); letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }
.ch .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.ch .tags span { padding: 7px 12px; border-radius: 999px; font: 700 0.66rem/1 var(--font-ui); letter-spacing: 0.12em; color: var(--gold-light); background: rgba(201, 169, 110, 0.10); box-shadow: 0 0 0 1px rgba(201, 169, 110, 0.3) inset; }
.ch .ticks { margin-top: 14px; }
.ch .ticks li { font-size: 0.9rem; }
.ch .acts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

/* end fade into page */
.story-end { position: absolute; left: 0; right: 0; bottom: 0; height: 30vh; z-index: 9; background: linear-gradient(180deg, transparent, var(--navy-850)); opacity: 0; pointer-events: none; }

@media (max-height: 640px) {
  .story-intro { align-content: center; padding-top: calc(var(--header-h) + 30px); padding-bottom: 70px; }
  .story-intro .kicker { margin-bottom: 12px; }
  .story-intro p { margin-top: 12px; }
}
@media (max-width: 900px) {
  .hud-rail { display: none; }
  /* compact flight-data pill under the header (location + altitude), like the desktop telemetry */
  .hud-tele { top: calc(var(--header-h) + 30px); right: auto; left: 14px; min-width: 0; display: flex; align-items: center; gap: 12px; padding: 8px 14px; border-radius: 999px; font-size: 0.6rem; }
  .hud-tele .loc { padding: 0; margin: 0; border: 0; font-size: 0.62rem; }
  .hud-tele .row { gap: 6px; }
  .hud-tele .row:nth-child(2), .hud-tele .row:nth-child(4), .hud-tele .row:nth-child(5), .hud-tele .row:nth-child(6) { display: none; }
  /* full-screen footage on phones: cinematic shade top + bottom so text stays readable */
  .story-shade { background: linear-gradient(180deg, rgba(5, 8, 12, 0.5) 0%, rgba(5, 8, 12, 0) 24%, rgba(5, 8, 12, 0) 48%, rgba(5, 8, 12, 0.78) 100%), radial-gradient(140% 100% at 50% 40%, transparent 55%, rgba(0, 0, 0, 0.45)); }
  .chapters { perspective: 900px; perspective-origin: 50% 100%; }
  .ch { transform-origin: 50% 100%; }
  /* phones/tablets: compact card docked above the progress bar, footage stays visible */
  .ch, .ch.right { left: 14px; right: 14px; width: auto; top: auto; bottom: 84px; transform: none; padding: 18px 18px 16px; max-height: calc(100svh - var(--header-h) - 130px); overflow: hidden; }
  .ch .num { font-size: 0.82rem; }
  .ch h2 { font-size: clamp(1.45rem, 6.4vw, 1.9rem); margin: 8px 0 8px; }
  .ch p { font-size: 0.86rem; line-height: 1.55; margin: 0; }
  .ch .mini-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 12px; }
  .ch .mini-stats div { padding: 8px 10px; }
  .ch .mini-stats b { font-size: 1.25rem; }
  .ch .mini-stats span { font-size: 0.56rem; letter-spacing: 0.08em; }
  .ch .tags { gap: 5px; margin-top: 10px; }
  .ch .tags span { padding: 5px 9px; font-size: 0.58rem; }
  .ch .acts { margin-top: 12px; }
  .ch .acts .btn { padding: 0.7em 1.1em; font-size: 0.7rem; }
  .ch .ticks { display: none; }
  .story-intro { padding-bottom: 200px; }
  .story-intro .inner { margin-left: 0; }
}
@media (max-width: 640px) {
  .hud-bottom { bottom: 22px; left: 16px; transform: none; width: calc(100% - 100px); padding: 10px 14px; }
  .hud-bottom .count { font-size: 0.64rem; }
  .story-intro { padding-bottom: 110px; }
}