/* Theme: Orange (#ff6d2e) & Black / Near-black */
:root {
  /* Core Palette (Burnt Orange + Deep Space + Cyan accent) */
  --orange:#d4601f; /* Darker burnt orange */
  --orange-alt:#ff7a32; /* Hover accent */
  --orange-deep:#8a3b10;
  --orange-gradient:linear-gradient(135deg,#ff7a32 0%,#d4601f 45%,#8a3b10 100%);
  --cyan:#35d8ff;
  --cyan-glow:#6fe4ff;
  --space-0:#030507;
  --space-1:#070b11;
  --space-2:#0e151d;
  --space-3:#15212c;
  --space-4:#223546;
  --bg:var(--space-1);
  --bg-alt:var(--space-2);
  --panel-glass:rgba(255,255,255,.04);
  --panel-glass-border:rgba(255,255,255,.12);
  --text:#f2f6f9;
  --muted:#8a96a3;
  --border:#24313d;
  --focus:#ffe6d4;
  --radius:16px;
  --radius-sm:6px;
  --shade:rgba(0,0,0,.55);
  --font-display:"Montserrat", system-ui, sans-serif;
  --font-body:"Inter", system-ui, sans-serif;
  --trans:170ms cubic-bezier(.4,0,.2,1);
  --max-w:1180px;
  --glow-orange:0 0 0 1px rgba(214,96,31,.5),0 0 14px -2px rgba(214,96,31,.8);
  --glow-cyan:0 0 0 1px rgba(53,216,255,.5),0 0 18px -2px rgba(53,216,255,.8);
  --grid-line:rgba(255,255,255,.04);
  --gradient-edge:linear-gradient(160deg,rgba(255,122,50,.4) 0%,rgba(53,216,255,.2) 55%,rgba(138,59,16,.45) 100%);
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; font-family:var(--font-body); background:radial-gradient(circle at 18% 12%,#16212c 0%,#070b11 50%,#030507 100%); color:var(--text); -webkit-font-smoothing:antialiased; }

body.theme-space { background:linear-gradient(180deg,#05070a,#070b11 50%,#05070a 100%); }

#starfield { position:fixed; inset:0; width:100%; height:100%; display:block; z-index:-2; background:#030507; }

img { max-width:100%; display:block; }
a { color:var(--orange); text-decoration:none; }
a:hover,a:focus { text-decoration:underline; }

.visually-hidden { position:absolute !important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }
.skip-link { position:absolute; left:-999px; top:0; background:#000; color:#fff; padding:8px 12px; z-index:999; } .skip-link:focus { left:10px; }

/* Header */
.site-header { position:sticky; top:0; z-index:60; overflow:hidden; backdrop-filter:blur(18px) saturate(160%); background:linear-gradient(115deg,rgba(10,15,21,.92) 0%,rgba(14,21,30,.85) 55%,rgba(20,30,40,.8) 100%); border-bottom:1px solid rgba(255,255,255,.09); box-shadow:0 4px 18px -8px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.04); }
.site-header::after { content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background:linear-gradient(90deg,transparent,rgba(214,96,31,.9),rgba(53,216,255,.7),transparent); opacity:.7; }
.site-header .inner { max-width:var(--max-w); margin:0 auto; display:flex; align-items:center; justify-content:space-between; padding:12px clamp(16px,3vw,32px); gap:18px; flex-wrap:wrap; }
.logo { font-family:var(--font-display); font-size:1.3rem; letter-spacing:.6px; margin:0; background:var(--orange-gradient); -webkit-background-clip:text; background-clip:text; color:transparent; filter:drop-shadow(0 0 6px rgba(214,96,31,.55)); position:relative; transition:filter var(--trans), transform var(--trans); --shimmer-pos:0%; }
.logo.shimmer { --progress:0%; position:relative; }
.logo.shimmer a { position:relative; display:inline-block; }
/* Replace shimmer bar with a reflective gradient sweep on the logo text */
/* Logo gradient text and reflection effect applied to the link */
.logo a {
  display:inline-block;
  background-image:
    var(--orange-gradient),
    linear-gradient(100deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.75) 12%, rgba(255,255,255,0) 24%);
  background-size:100% 100%, 220% 100%;
  background-position:0 0, -150% 0;
  background-repeat:no-repeat;
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  transition:background-position 0.4s;
}
.logo a:hover, .logo a:focus {
  animation:logo-reflect 2200ms ease-in-out 1;
  text-decoration:none;
}
/* Reflective sweep animation */
@keyframes logo-reflect {
  0%   { background-position:0 0, -150% 0; }
  50%  { background-position:0 0, 150% 0; }
  100% { background-position:0 0, -150% 0; }
}

/* Orbiting stars around the logo (smooth circular motion) */
.logo.star-active { position: relative; }
.logo.star-active::before,
.logo.star-active::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  pointer-events: none;
  mix-blend-mode: screen;
  filter: blur(.5px);
  transform-origin: center;
  opacity: .95;
}

/* Warm star */
.logo.star-active::before {
  --orbit-r: 1.7em;
  background: radial-gradient(circle, rgba(255,255,255,.98) 0%, rgba(255,215,0,.9) 40%, rgba(255,215,0,0) 70%);
  box-shadow: 0 0 18px rgba(255,215,0,.8), 0 0 34px rgba(214,96,31,.4);
  animation: orbit 10s linear infinite;
}

/* Cyan star */
.logo.star-active::after {
  --orbit-r: 2.2em;
  width: 10px; height: 10px;
  background: radial-gradient(circle, rgba(111,228,255,.98) 0%, rgba(53,216,255,.85) 40%, rgba(53,216,255,0) 70%);
  box-shadow: 0 0 16px rgba(111,228,255,.75), 0 0 30px rgba(53,216,255,.45);
  animation: orbit 10s linear infinite;
  animation-delay: -2.5s; /* phase offset for variety */
}

@keyframes orbit {
  0%   { transform: translate(-50%, -50%) rotate(0deg) translateX(var(--orbit-r)); }
  100% { transform: translate(-50%, -50%) rotate(360deg) translateX(var(--orbit-r)); }
}
.logo a { display:inline-block; padding:4px 6px; border-radius:8px; }
.logo a:focus-visible { outline:2px solid var(--orange-alt); outline-offset:4px; }
.logo:hover { filter:drop-shadow(0 0 10px rgba(214,96,31,.8)); transform:translateY(-2px); }
.logo a { color:inherit; text-decoration:none; }
.site-nav ul { list-style:none; display:flex; gap:4px; margin:0; padding:0; flex-wrap:wrap; }
.site-nav a { --underline-scale:0; display:inline-block; padding:8px 18px; border-radius:10px; font-weight:500; font-size:.9rem; color:var(--muted); position:relative; transition:color var(--trans), background var(--trans), transform var(--trans); background:linear-gradient(150deg,rgba(255,255,255,0.035),rgba(255,255,255,0.015)); border:1px solid rgba(255,255,255,.07); }
.site-nav a::after { content:""; position:absolute; left:14px; right:14px; bottom:5px; height:2px; background:var(--orange-gradient); border-radius:2px; transform:scaleX(var(--underline-scale)); transform-origin:left center; transition:transform .4s var(--trans); box-shadow:0 0 10px rgba(214,96,31,.65); }
/* Remove global white underline for header nav links and enable orange underline + subtle lift */
.site-nav a:hover,
.site-nav a:focus {
  text-decoration:none; /* override global a:hover rule */
  --underline-scale:1; /* show orange underline */
  color:var(--text);
  background:rgba(255,180,110,0.10);
  box-shadow:0 6px 18px -8px rgba(214,96,31,.18),0 2px 8px -2px rgba(0,0,0,.45);
  transform:translateY(-3px);
}
.site-nav a:focus-visible { outline:2px solid var(--cyan); outline-offset:3px; color:var(--text); }
.site-nav a.active { color:var(--text); --underline-scale:1; background:linear-gradient(155deg,rgba(255,255,255,0.15),rgba(255,255,255,0.07)); box-shadow:0 0 0 1px rgba(214,96,31,.5),0 0 18px -4px rgba(214,96,31,.7); }

/* Hero */
.hero { position:relative; padding:80px 0 110px; min-height:70vh; display:flex; align-items:center; }
.hero-bg { position:absolute; inset:0; background:
  radial-gradient(circle at 80% 30%,rgba(53,216,255,.25),transparent 60%),
  radial-gradient(circle at 20% 70%,rgba(214,96,31,.35),transparent 65%),
  linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.65)); pointer-events:none; }
.hero-content { max-width:var(--max-w); margin:0 auto; width:100%; padding:0 28px; }
.carousel { position:relative; }
.slides { display:grid; grid-auto-flow:column; grid-auto-columns:100%; overflow:hidden; scroll-snap-type:x mandatory; -webkit-overflow-scrolling:touch; }
.slide { display:grid; grid-template-columns: minmax(300px,420px) 1fr; gap:60px; align-items:center; width:100%; padding:10px 0; opacity:0; transform:translateX(40px) scale(.995); transition:opacity .7s var(--trans), transform .7s var(--trans); scroll-snap-align:start; }
.slide.is-active { opacity:1; transform:translateX(0) scale(1); }
.slide .media {
  position:relative;
  filter:drop-shadow(0 10px 30px rgba(0,0,0,.55));
  perspective:900px;
  --tilt-x:0deg;
  --tilt-y:8deg;
  --shine-x:65%;
  --shine-y:50%;
}
.slide .media::after {
  content:"";
  position:absolute;
  inset:0;
  border-radius:calc(var(--radius) - 4px);
  background:radial-gradient(circle at var(--shine-x,50%) var(--shine-y,50%), rgba(255,255,255,.35), rgba(255,255,255,0) 55%);
  opacity:0;
  mix-blend-mode:screen;
  transition:opacity 180ms var(--trans);
  pointer-events:none;
}
.slide .media img {
  border-radius:calc(var(--radius) - 4px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 20px 50px -20px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.06),0 0 0 4px rgba(138,59,16,.3);
  transform:rotateX(var(--tilt-x,0deg)) rotateY(var(--tilt-y,0deg)) translateZ(0);
  transform-style:preserve-3d;
  transition:transform 160ms var(--trans), box-shadow 220ms var(--trans);
  will-change:transform;
}
.slide .media.is-tilting::after { opacity:.55; }
.slide .media.is-tilting img {
  box-shadow:0 30px 60px -24px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.08),0 0 0 6px rgba(138,59,16,.35);
}
.slide .copy h2 { font-family:var(--font-display); font-size:clamp(2rem,4vw,3rem); margin:0 0 10px; letter-spacing:.5px; }
.slide .tagline { max-width:620px; font-size:1.05rem; margin:0 0 18px; line-height:1.5; }
.rating { display:flex; align-items:center; gap:8px; margin-bottom:22px; font-weight:600; }
.rating .stars { --star-size:22px; position:relative; display:inline-flex; gap:2px; }
.rating .star { display:inline-block; width:var(--star-size); height:var(--star-size); position:relative; }
.rating .star svg { width:100%; height:100%; fill:#ffd700; filter:drop-shadow(0 0 4px rgba(255,215,0,.4)); }
.rating .star.half svg { fill:url(#half-star-gradient); }
.rating .star.empty svg { fill:#3a4855; }
.rating-value { font-size:1.05rem; color:var(--cyan-glow); text-shadow:0 0 6px rgba(53,216,255,.6); }

.carousel-controls { position:absolute; left:0; right:0; bottom:-60px; display:flex; justify-content:space-between; pointer-events:none; }
.carousel-controls button { pointer-events:auto; background:#0c1116; border:1px solid var(--border); color:var(--text); width:52px; height:52px; border-radius:50%; font-size:1.4rem; cursor:pointer; display:grid; place-items:center; transition:background var(--trans), transform var(--trans); }
.carousel-controls button:hover { background:#141c23; transform:translateY(-3px); }
.carousel-controls button:focus-visible { outline:3px solid var(--focus); outline-offset:2px; }

.carousel-indicators { position:absolute; bottom:-18px; left:50%; transform:translateX(-50%); display:flex; gap:12px; }
.carousel-indicators button { width:16px; height:16px; background:linear-gradient(145deg,#1a252e,#0a1015); border:1px solid rgba(255,255,255,.15); border-radius:4px; cursor:pointer; padding:0; position:relative; box-shadow:inset 0 0 0 1px rgba(255,255,255,.05); }
.carousel-indicators button[aria-selected="true"] { background:var(--orange-gradient); border-color:rgba(255,255,255,.4); box-shadow:var(--glow-orange); }
.carousel-indicators button:focus-visible { outline:3px solid var(--focus); outline-offset:2px; }

/* Buttons */
.btn { --btn-bg:#141c20; --btn-border:rgba(255,255,255,.1); font-family:var(--font-body); font-weight:600; padding:12px 22px; border-radius:var(--radius-sm); display:inline-flex; gap:8px; align-items:center; justify-content:center; line-height:1.2; font-size:.95rem; letter-spacing:.3px; border:1px solid var(--btn-border); background:var(--btn-bg); color:var(--text); position:relative; overflow:hidden; cursor:pointer; transition:background var(--trans), transform var(--trans), color var(--trans); text-decoration:none; }
.btn.primary { background:var(--orange-gradient); border:none; color:#1d0f07; box-shadow:0 6px 22px -8px rgba(214,96,31,.75),0 0 0 1px rgba(214,96,31,.4); }
.btn.primary:hover { filter:brightness(1.07); }
.btn.ghost { background:linear-gradient(145deg,rgba(255,255,255,.05),rgba(255,255,255,.02)); border:1px solid rgba(255,255,255,.15); }
.btn.buy { background:linear-gradient(135deg, rgba(111,228,255,.96), rgba(53,216,255,.9)); border:none; color:#061219; box-shadow:0 6px 22px -8px rgba(53,216,255,.75),0 0 0 1px rgba(53,216,255,.4); }
.btn.buy:hover { filter:brightness(1.07); }
.btn:hover { transform:translateY(-2px); }
.btn:focus-visible { outline:3px solid var(--focus); outline-offset:2px; }

/* About */
.about { padding:90px 0 70px; background:linear-gradient(180deg,#080c11,#0b1016); position:relative; }
.about[data-panel="glass"] .inner { background:linear-gradient(155deg,rgba(255,255,255,.06),rgba(255,255,255,.02)); border:1px solid rgba(255,255,255,.12); backdrop-filter:blur(18px) saturate(130%); padding:60px clamp(1.2rem,3vw,3rem); border-radius:calc(var(--radius) + 6px); box-shadow:0 10px 50px -20px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.05); }
.about .inner { max-width:var(--max-w); margin:0 auto; padding:0 28px; display:grid; grid-template-columns: minmax(340px,580px) 380px; gap:70px; align-items:center; }
.about-copy h2 { font-family:var(--font-display); font-size:clamp(2rem,3vw,2.6rem); margin:0 0 14px; }
.about-copy p { margin:0 0 18px; font-size:1.05rem; color:#d4d9df; }
.newsletter { display:flex; gap:10px; flex-wrap:wrap; }
.newsletter input { flex:1 1 240px; padding:14px 16px; border-radius:var(--radius-sm); border:1px solid var(--border); background:#12181f; color:var(--text); font:inherit; }
.newsletter input:focus { outline:2px solid var(--orange); outline-offset:2px; }
.about-photo img {
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  object-position:center top;
  border-radius:var(--radius);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 6px 40px -10px rgba(0,0,0,.7);
}

/* Library */
.library { padding:90px 0 120px; }
.library .inner { max-width:var(--max-w); margin:0 auto; padding:0 28px; }
.library-head { margin-bottom:34px; }
.library-head h2 { font-family:var(--font-display); font-size:clamp(2rem,2.6vw,2.4rem); margin:0; }

.book-grid { --card-min:220px; display:grid; gap:34px; grid-template-columns:repeat(auto-fit,minmax(var(--card-min),1fr)); }
.book-card { background:linear-gradient(160deg,#0e151d,#0b1016); border:1px solid rgba(255,255,255,.08); border-radius:var(--radius); display:flex; flex-direction:column; position:relative; overflow:hidden; box-shadow:0 10px 30px -14px rgba(0,0,0,.75),0 0 0 1px rgba(255,255,255,.04); transition:transform var(--trans), border-color var(--trans), box-shadow var(--trans); }
.book-card::before { content:""; position:absolute; inset:0; background:linear-gradient(120deg,rgba(53,216,255,.08),rgba(214,96,31,.08) 40%,transparent 70%); opacity:0; transition:opacity .6s var(--trans); pointer-events:none; }
.book-card:focus-within, .book-card:hover { transform:translateY(-6px); border-color:rgba(214,96,31,.6); box-shadow:0 10px 40px -10px rgba(214,96,31,.35),0 0 0 1px rgba(214,96,31,.4); }
.book-card:hover::before, .book-card:focus-within::before { opacity:1; }
.card-media { position:relative; aspect-ratio:2/3; overflow:hidden; }
.card-media img { width:100%; height:100%; object-fit:cover; filter:saturate(1.05); }
.card-body { padding:16px 18px 60px; display:flex; flex-direction:column; }
.book-title-sm { font-family:var(--font-display); font-size:1.15rem; margin:0 0 6px; }
.meta { margin:0 0 10px; font-size:.8rem; letter-spacing:.5px; text-transform:uppercase; color:var(--muted); }
.blurb { font-size:.9rem; line-height:1.45; margin:0 0 14px; color:#c9d1d8; }
.text-link { font-weight:600; font-size:.85rem; letter-spacing:.5px; text-transform:uppercase; color:var(--orange-glow); }
.text-link:hover { text-decoration:underline; }

/* Footer */
.site-footer { background:#050608; border-top:1px solid #12181f; font-size:.8rem; letter-spacing:.4px; position:relative; }
.site-footer::before { content:""; position:absolute; left:0; right:0; top:0; height:2px; background:linear-gradient(90deg,transparent,rgba(214,96,31,.8),rgba(53,216,255,.7),transparent); }
.site-footer .inner { max-width:var(--max-w); margin:0 auto; padding:28px; color:#9aa4b1; }
.site-footer p { margin:0; }

/* Responsive */
@media (max-width:1200px) {
  .slide { gap:40px; }
  .about .inner { grid-template-columns: 1fr 320px; gap:50px; }
}
@media (max-width:900px) {
  .slide { grid-template-columns: minmax(260px,360px); }
  .slide .copy { margin-top:30px; }
  .carousel-controls { bottom:-40px; }
  .about .inner { grid-template-columns:1fr; }
  .about-photo { order:-1; max-width:440px; }
}
@media (max-width:680px) {
  .site-header .inner { padding:14px 18px; }
  .logo { font-size:1.1rem; }
  .site-nav a { padding:6px 10px; font-size:.85rem; }
  .hero { padding:60px 0 120px; }
  .carousel-indicators { bottom:-30px; }
}

/* Motion reduction */
@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after { animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition:none !important; scroll-behavior:auto !important; }
  .slide .media::after { display:none !important; }
  .slide .media img { transform:none !important; }
}