/* ════════════════════════════════════════════════════════════════
   Φωταγωγός — style.css
   ════════════════════════════════════════════════════════════════ */

:root {
  --ink:        #16233f;   /* το μπλε του λογοτύπου */
  --ink-soft:   #2c3d63;
  --wall:       #eef1f7;
  --light:      #ffb03a;   /* το πορτοκαλί των παραθύρων */
  --light-warm: #ffd489;
  --bg-color:   #0c0324;

  --sky-top:    #451170;
  --sky-mid:    #3a1161;
  --sky-low:    #522ed3;

  --paper:      #f3efe7;
  --text:       #e7ecf6;
  --text-dim:   #96a3bd;

  --serif: "Cascadia Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans:  "Cascadia Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-color);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; }

/* ════════════ NAVBAR ════════════ */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  transition: background .4s ease, backdrop-filter .4s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(6, 10, 20, .82);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(255, 255, 255, .08);
}

.nav__brand { display: flex; align-items: center; opacity: 0; transition: opacity .4s ease; pointer-events: none; }
.nav.is-stuck .nav__brand { opacity: 1; pointer-events: auto; }
.nav__brand img { height: 46px; width: auto; display: block; }

.nav__links { display: flex; gap: clamp(1rem, 2.6vw, 2.4rem); margin-left: auto; }
.nav__links a {
  position: relative;
  font-size: .84rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-dim);
  padding: .35rem 0;
  transition: color .25s ease;
}
.nav__links a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--light);
  transition: right .3s ease;
}
.nav__links a:hover, .nav__links a.is-current { color: #fff; }
.nav__links a:hover::after, .nav__links a.is-current::after { right: 0; }

.nav__burger { display: none; }

/* ════════════ HERO ════════════ */

.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background:
    radial-gradient(120% 78% at 50% 100%, rgba(255,150,40,.16) 0%, rgba(255,150,40,0) 62%),
    linear-gradient(to bottom, var(--sky-top) 0%, var(--sky-mid) 46%, var(--sky-low) 100%);
}

.hero__stars { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero__moon {
  position: absolute;
  top: 12%; right: 13%;
  width: 74px; height: 74px;
  border-radius: 50%;
  background: radial-gradient(circle at 36% 34%, #fffaf0 0%, #f4e7cd 58%, #ddcfb2 100%);
  box-shadow: 0 0 42px 14px rgba(255, 240, 205, .16),
              0 0 130px 50px rgba(255, 230, 180, .07);
  animation: moonBreathe 12s ease-in-out infinite;
}
@keyframes moonBreathe {
  0%, 100% { box-shadow: 0 0 42px 14px rgba(255,240,205,.16), 0 0 130px 50px rgba(255,230,180,.07); }
  50%      { box-shadow: 0 0 52px 18px rgba(255,240,205,.22), 0 0 150px 60px rgba(255,230,180,.10); }
}

.hero__clouds { position: absolute; inset: 0; pointer-events: none; }
.cloud {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 55%, rgba(160,180,220,.11), rgba(160,180,220,0) 70%);
  filter: blur(6px);
}
.cloud--1 { width: 460px; height: 130px; top: 16%; left: -18%; animation: drift 96s linear infinite; }
.cloud--2 { width: 620px; height: 160px; top: 30%; left: -30%; animation: drift 140s linear infinite -40s; }
.cloud--3 { width: 340px; height: 100px; top:  8%; left: -12%; animation: drift 118s linear infinite -80s; }
@keyframes drift { to { transform: translateX(145vw); } }

.hero__glow {
  position: absolute; left: 0; right: 0; bottom: 0; height: 46%;
  background: radial-gradient(70% 100% at 50% 100%, rgba(255,170,60,.20), rgba(255,170,60,0) 70%);
  pointer-events: none;
}

/* τα αιωρούμενα φωτάκια — πάνω απ' την πόλη, ώστε να «είναι στον αέρα» */
.hero__motes {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 8;
  pointer-events: none;
  mix-blend-mode: screen;
}

/* ---- λογότυπο + tagline ---- */

.hero__brand {
  position: absolute;
  left: 50%; top: 7.5%;
  transform: translateX(-50%);
  z-index: 5;
  text-align: center;
  width: min(92vw, 640px);
  pointer-events: none;
}
.hero__logo {
  width: min(70vw, 342px);
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 10px 40px rgba(0,0,0,.55));
  animation: riseIn 1.5s cubic-bezier(.16,.8,.3,1) both .15s;
}
.hero__tagline {
  margin: .4rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.02rem, 2.1vw, 1.42rem);
  font-style: italic;
  letter-spacing: .015em;
  color: #cdd8ec;
  text-shadow: 0 2px 18px rgba(0,0,0,.7);
  animation: riseIn 1.5s cubic-bezier(.16,.8,.3,1) both .55s;
}
@keyframes riseIn {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: none; }
}

/* ---- η πόλη ---- */

.city {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  display: block;
}

/* η πόλη βυθίζεται στο σκοτάδι στο κάτω μέρος */
.hero__floor {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 24%;
  z-index: 6;
  pointer-events: none;
  background: linear-gradient(to bottom,
    rgba(4,6,14,0) 0%, rgba(4,6,14,.30) 50%, rgba(4,6,14,.88) 100%);
}

.layer { will-change: transform; }

.wall  { fill: url(#wallGrad); }
.shade { fill: rgba(22, 35, 63, .22); }

.ink {
  fill: none;
  stroke: var(--ink);
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.outline      { stroke-width: 2.2; }
.outline.faint{ stroke-width: 1.1; opacity: .38; }
.frame        { stroke-width: 1.15; }
.dish         { fill: #eef1f7; stroke: var(--ink); stroke-width: 2; vector-effect: non-scaling-stroke; }
.leaf         { stroke-width: 1.6; }

/* βάθος: όσο πιο μακριά, τόσο πιο σβησμένο και μπλε */
.layer--back  { opacity: .62; }
.layer--back .wall     { fill: #55658a; }
.layer--back .ink      { stroke: #26365a; }
.layer--back .outline  { stroke-width: 1.4; }
.layer--back .frame    { stroke-width: .8; }
.layer--back .shade    { fill: rgba(10,17,34,.30); }

.layer--mid   { opacity: .93; }
.layer--mid .wall { fill: url(#wallGrad); }

.layer--front .outline { stroke-width: 2.6; }
.layer--front .wall    { fill: url(#wallGradFront); }
.layer--front .shade   { fill: rgba(14, 22, 42, .30); }

/* ---- παράθυρα ---- */

.win .glass      { fill: #2b3757; }
.win .halo       { fill: url(#haloGrad); opacity: 0; transition: opacity 1.4s ease; }
.win .lightpane  { fill: url(#glassGrad); opacity: 0; transition: opacity 1.4s ease; }

.win.is-lit .halo      { opacity: 1; }
.win.is-lit .lightpane { opacity: 1; animation: flicker var(--flick, 4s) ease-in-out infinite; }

@keyframes flicker {
  0%, 100% { opacity: 1; }
  46%      { opacity: .94; }
  52%      { opacity: 1; }
  78%      { opacity: .9; }
}

/* πριν το «άναμμα» κατά τη φόρτωση */
.city.is-dark .win .halo,
.city.is-dark .win .lightpane { opacity: 0 !important; }

/* ---- ανοιχτές μπαλκονόπορτες με εξώφυλλα ---- */

/* Το χρώμα του φωτός κάθε βιβλίου μπαίνει από το js:
   τα gradients (aura-*, spill-*) φτιάχνονται ξεχωριστά για κάθε παράθυρο. */

.door { cursor: pointer; outline: none; }
/* Το φωτοστέφανο/το φως-χύσιμο είναι πλατύτερα από το ίδιο το βιβλίο και,
   σε γειτονικά παράθυρα, τα ορθογώνιά τους αλληλεπικαλύπτονται. Χωρίς
   pointer-events εδώ, το hover «πιάνεται» μόνο πάνω στο πραγματικό
   εξώφυλλο/παράθυρο — όχι στη φωτεινή άλω γύρω του — οπότε δεν ενεργοποιείται
   πια το διπλανό βιβλίο κατά λάθος. */
.door .spill     { opacity: .55; transition: opacity .4s ease; pointer-events: none; }
.door .leafpane  { fill: rgba(206,217,236,.94); }

.door .aura {
  opacity: .42;
  transition: opacity .45s ease;
  animation: auraBreathe 9s ease-in-out infinite;
  pointer-events: none;
}
@keyframes auraBreathe { 0%,100% { opacity: .34 } 50% { opacity: .56 } }

.door .coverglow { opacity: .4; transition: opacity .4s ease; pointer-events: none; }

.door .cover {
  transition: transform .45s cubic-bezier(.2,.9,.3,1.2), filter .45s ease;
  filter: drop-shadow(0 3px 10px rgba(0,0,0,.55));
  will-change: transform, filter;
  transform: translateZ(0);
  backface-visibility: hidden;
}

.door:hover .cover,
.door:focus-visible .cover {
  transform: translateZ(0) scale(1.55) translateY(-6px);
  filter: drop-shadow(0 14px 26px rgba(0,0,0,.7))
          drop-shadow(0 0 24px var(--book-light, rgba(255,190,90,.55)));
}
.door:hover .coverglow,
.door:focus-visible .coverglow { opacity: .95; }
.door:hover .aura,
.door:focus-visible .aura { opacity: 1; animation-play-state: paused; }
.door:hover .spill,
.door:focus-visible .spill { opacity: 1; }

/* ---- ετικέτα τίτλου ---- */

.booktip {
  position: absolute;
  z-index: 20;
  transform: translate(-50%, -100%);
  padding: .5rem .85rem .55rem;
  border-radius: 4px;
  background: rgba(8, 13, 25, .92);
  border: 1px solid color-mix(in srgb, var(--book-light, #ffbe5a) 45%, transparent);
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  display: flex; flex-direction: column; align-items: center; gap: .12rem;
}
.booktip.is-on { opacity: 1; transform: translate(-50%, calc(-100% - 10px)); }
.booktip__title {
  font-family: var(--serif);
  font-size: 1.16rem;
  letter-spacing: .01em;
  color: #fff;
}
.booktip__cta {
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--book-light, var(--light));
}

/* ---- scroll hint ---- */

.hero__hint {
  position: absolute;
  left: 50%; bottom: 1.6rem;
  transform: translateX(-50%);
  z-index: 10;
  display: flex; flex-direction: column; align-items: center; gap: .3rem;
  text-decoration: none;
  color: rgba(255,255,255,.62);
  font-size: .74rem;
  letter-spacing: .1em;
  text-align: center;
  animation: hintIn 1.4s ease both 1.8s;
  padding: .5rem 1.1rem .6rem;
  border-radius: 100px;
  background: rgba(4, 7, 16, .55);
  backdrop-filter: blur(6px);
  text-shadow: 0 1px 8px rgba(0,0,0,.8);
}
.hero__hint svg { animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0) } 50% { transform: translateY(5px) } }
@keyframes hintIn { from { opacity: 0 } to { opacity: 1 } }
.hero__hint:hover { color: #fff; }

/* ════════════ ΕΙΣΑΓΩΓΗ ════════════ */

.intro {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(4rem, 10vw, 7.5rem) 1.5rem clamp(3rem, 7vw, 5rem);
  text-align: center;
}
.intro__lead {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.9vw, 1.7rem);
  line-height: 1.42;
  color: #f0f3fa;
  margin: 0 0 1.4rem;
}
.intro__body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-dim);
  margin: 0 0 2.4rem;
}

.btn {
  display: inline-block;
  padding: .82rem 1.9rem;
  border: 1px solid rgba(255, 176, 58, .55);
  border-radius: 2px;
  color: var(--light-warm);
  text-decoration: none;
  font-size: .8rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.btn:hover { background: var(--light); color: #14203a; border-color: var(--light); }

/* ---- ποιος γράφει ---- */
.author {
  text-align: left;
  margin: clamp(3rem, 7vw, 4.5rem) 0;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 6px;
  background: linear-gradient(160deg, rgba(255,176,58,.05), rgba(255,255,255,.02));
}
.author__head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.3rem;
}
.author__photo {
  flex: none;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 22%;
  opacity: .88;
  box-shadow: 0 6px 16px rgba(0,0,0,.4), 0 0 0 1px rgba(255,176,58,.22);
}
.author__id { min-width: 0; }
.author__eyebrow {
  margin: 0 0 .35rem;
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--light);
  opacity: .8;
}
.author__name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.8vw, 1.65rem);
  line-height: 1.2;
  margin: 0;
  color: #f4f7fd;
}
.author__handle {
  font-family: var(--sans);
  font-weight: 300;
  font-size: .68em;
  letter-spacing: .04em;
  color: var(--text-dim);
  opacity: .8;
}
.author__bio {
  margin: 0;
  font-size: .95rem;
  line-height: 1.9;
  color: var(--text-dim);
  text-align: justify;
}

/* ════════════ ΣΕΛΙΔΑ «ΚΕΙΜΕΝΑ» ════════════ */

.page-body {
  min-height: 100vh;
  background:
    radial-gradient(120% 60% at 50% 0%, rgba(255,150,40,.08) 0%, rgba(255,150,40,0) 60%),
    linear-gradient(to bottom, #070b16 0%, #0a1122 40%, #101a30 100%);
  background-attachment: fixed;
}
.page-motes {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}
/* Το περιεχόμενο πάνω από το canvas των φωτακιών — ΟΧΙ το nav:
   αν πιάσει και το .nav, του κλέβει το position:fixed / z-index:50
   και το mobile menu κλειδώνεται κάτω από το <main>. */
.page-body > main,
.page-body > footer { position: relative; z-index: 1; }

.library {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(6.5rem, 13vw, 9rem) clamp(1.2rem, 4vw, 2.5rem) 4rem;
}

.library__head { max-width: 620px; margin-bottom: clamp(2.6rem, 6vw, 4rem); }
.library__eyebrow {
  margin: 0 0 .6rem;
  font-size: .72rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--light);
  opacity: .8;
}
.library__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  line-height: 1.05;
  margin: 0 0 .8rem;
  color: #f4f7fd;
}
.library__lead {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.library__filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2rem; }
.chip {
  font-family: var(--sans);
  font-size: .76rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 100px;
  padding: .48rem 1rem;
  cursor: pointer;
  transition: color .25s ease, border-color .25s ease, background .25s ease;
}
.chip:hover { color: #fff; border-color: rgba(255,255,255,.3); }
.chip.is-on {
  color: #14203a;
  background: var(--light);
  border-color: var(--light);
}

.library__grid {
  display: grid;
  gap: clamp(1.8rem, 3.4vw, 3rem) clamp(1.4rem, 2.6vw, 2.4rem);
  grid-template-columns: repeat(auto-fill, minmax(212px, 1fr));
}
.library__empty { text-align: center; color: var(--text-dim); padding: 4rem 0; }

/* ---- κάρτα βιβλίου ---- */

.bookcard {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  animation: cardIn .7s cubic-bezier(.16,.8,.3,1) both;
  animation-delay: var(--delay, 0ms);
}
@keyframes cardIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

.bookcard__frame {
  position: relative;
  display: block;
  border-radius: 3px;
}
.bookcard__glow {
  position: absolute;
  inset: -14%;
  border-radius: 50%;
  background: radial-gradient(closest-side,
              color-mix(in srgb, var(--book-light) 55%, transparent),
              transparent 78%);
  opacity: .3;
  filter: blur(10px);
  transition: opacity .45s ease;
  z-index: 0;
}
.bookcard__cover {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 3px;
  box-shadow: 0 14px 34px rgba(0,0,0,.55);
  transition: transform .45s cubic-bezier(.2,.85,.3,1), box-shadow .45s ease;
}

.bookcard:hover .bookcard__cover,
.bookcard:focus-visible .bookcard__cover {
  transform: translateY(-10px);
  box-shadow: 0 26px 50px rgba(0,0,0,.62),
              0 0 30px color-mix(in srgb, var(--book-light) 40%, transparent);
}
.bookcard:hover .bookcard__glow,
.bookcard:focus-visible .bookcard__glow { opacity: .85; }

.bookcard__body { display: block; padding-top: 1.05rem; }
.bookcard__year {
  display: block;
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--text-dim);
  opacity: .75;
  margin-bottom: .3rem;
}
.bookcard__title {
  display: block;
  font-family: var(--serif);
  font-size: 1.32rem;
  line-height: 1.25;
  color: #f2f5fb;
  margin-bottom: .45rem;
  transition: color .3s ease;
}
.bookcard:hover .bookcard__title { color: var(--book-light); }
.bookcard__excerpt {
  display: block;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--text-dim);
  margin-bottom: .7rem;
}
.bookcard__cta {
  display: block;
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--book-light);
  opacity: .85;
}
.bookcard.is-soon .bookcard__cta { color: var(--text-dim); opacity: .6; }

/* όταν έρχεσαι από ένα παράθυρο της αρχικής */
.bookcard.is-pointed .bookcard__glow { opacity: 1; }
.bookcard.is-pointed .bookcard__cover {
  animation: pointed 2.4s ease-in-out;
}
@keyframes pointed {
  0%, 100% { transform: none; }
  18%, 62% { transform: translateY(-12px) scale(1.02); }
}

/* ════════════ FOOTER ════════════ */

.foot {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 2.2rem 1.5rem 2.6rem;
  text-align: center;
  color: var(--text-dim);
  font-size: .82rem;
  letter-spacing: .05em;
}
.foot p { margin: .3rem 0; }
.foot a { color: var(--text-dim); text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.18); }
.foot a:hover { color: var(--light); }

.foot .foot__social {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .6rem 1.6rem;
  margin-top: 1.1rem;
}
.foot .foot__social a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  border-bottom: 0;
}
.foot .foot__social svg { width: 16px; height: 16px; flex: none; opacity: .75; transition: opacity .25s ease; }
.foot .foot__social span { border-bottom: 1px solid rgba(255,255,255,.18); transition: border-color .25s ease; }
.foot .foot__social a:hover svg { opacity: 1; }
.foot .foot__social a:hover span { border-bottom-color: rgba(255,255,255,.45); }

.foot .foot__credit {
  margin-top: 1.8rem;
  font-size: .68rem;
  letter-spacing: .09em;
  color: rgba(255,255,255,.26);
}

@media (max-width: 640px) {
  .library { padding-top: 6rem; }
  .library__grid { grid-template-columns: repeat(2, 1fr); gap: 1.9rem 1.05rem; }
  .bookcard__title { font-size: 1.05rem; }
  .bookcard__excerpt { font-size: .78rem; line-height: 1.55; }
  .bookcard__body { padding-top: .8rem; }
  .chip { font-size: .7rem; padding: .42rem .8rem; }
}

/* ════════════ ΚΙΝΗΤΟ ════════════ */

@media (max-width: 760px) {
  .hero { height: 100svh; min-height: 520px; }
  .hero__brand { top: 7%; }
  .hero__logo { width: 66vw; }
  .hero__tagline { font-size: 1rem; }
  .hero__moon { width: 52px; height: 52px; top: 7%; right: 8%; }
  .hero__floor { height: 16%; }

  .nav__links {
    position: fixed;
    inset: 0;
    z-index: 55;
    height: 100vh;
    height: 100dvh;
    overflow-y: auto;
    flex-direction: column;
    align-items: center;
    gap: .2rem;
    padding: 5rem 0 2rem;
    background: rgba(6,10,20,.97);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    transform: translateY(-102%);
    transition: transform .38s cubic-bezier(.3,.9,.3,1);
    pointer-events: none;
  }
  .nav__links a { font-size: 1rem; padding: .85rem 1rem; }
  .nav.is-open .nav__links { transform: none; pointer-events: auto; }

  .nav__burger {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 42px; padding: 0 9px;
    background: none; border: 0; cursor: pointer; z-index: 60;
  }
  .nav__burger span {
    display: block; height: 1.5px; background: #fff; border-radius: 2px;
    transition: transform .3s ease, opacity .25s ease;
  }
  .nav.is-open .nav__burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  .nav__brand { opacity: 1; pointer-events: auto; }
  .nav__brand img { height: 38px; }

  .booktip { display: none; }

  .hero__hint { bottom: .8rem; font-size: .68rem; white-space: nowrap; padding: .4rem .9rem .5rem; }
  .nav__brand { opacity: 0; }
  .nav.is-stuck .nav__brand { opacity: 1; }
}

/* ════════════ ΠΡΟΣΒΑΣΙΜΟΤΗΤΑ ════════════ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .layer { transition: none; }
}

.sway {
  animation: sway 8s ease-in-out infinite;
}
@keyframes sway {
  0%, 100% { transform: rotate(-.7deg); }
  50%      { transform: rotate(.7deg); }
}
.sway--soft { animation-duration: 5.5s; }