/* css/rulebook-home.css - a főoldali "Szerverszabályzat" rész: lebegő, nyitott szabálykönyv
   Ugyanaz a stílus, mint a /rules oldal könyvénél: fekete borító, krémszínű lapok, kék címek, kék cetlik. */
.rb-stage {
    --primary: #0084ff;
    --rx: 0deg; --ry: 0deg;             /* az egér szerinti döntés (js/scene.js állítja) */
    position: relative;
    max-width: 860px;
    margin: 10px auto 0;
    padding: 20px 60px 70px 0;           /* jobbra hely a kilógó cetliknek */
    perspective: 1700px;
}
.rb-float { animation: rb-float 6.5s ease-in-out infinite; transform-style: preserve-3d; }
@keyframes rb-float {
    0%, 100% { transform: translateY(0) rotate(-.6deg); }
    50%      { transform: translateY(-20px) rotate(.6deg); }
}

.rulebook {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 420px;
    transform-style: preserve-3d;
    transform: rotateX(calc(14deg + var(--rx))) rotateY(var(--ry));
    transition: transform .5s cubic-bezier(.2,.8,.2,1);
}

/* a hátsó borító (mint a /rules könyv borítója: fekete, #333 kerettel) */
.rb-back {
    position: absolute;
    inset: -14px -18px -20px;
    border-radius: 8px 16px 16px 8px;
    transform: translateZ(-24px);
    background: linear-gradient(135deg, #111, #222);
    border: 4px solid #333;
    box-shadow: 0 30px 60px rgba(0,0,0,.6), 0 0 60px rgba(0,132,255,.18);
}
/* lapok vastagsága alul */
.rb-stack {
    position: absolute;
    bottom: -8px; height: 12px;
    background: repeating-linear-gradient(180deg, #fdf6e3 0 2px, #e2d6b8 2px 3px);
    box-shadow: 0 3px 4px rgba(0,0,0,.4);
}
.rb-stack-l { left: 6px;  right: 50%; border-radius: 0 0 0 6px; transform: translateZ(-6px) rotateY(12deg); transform-origin: right center; }
.rb-stack-r { right: 6px; left: 50%;  border-radius: 0 0 6px 0; transform: translateZ(-6px) rotateY(-12deg); transform-origin: left center; }

/* lapok */
.rb-page {
    position: relative;
    padding: 40px 42px 46px;
    color: #333;
    font-family: 'Montserrat', 'Poppins', sans-serif;
    background: #fdf6e3;
    transition: transform .6s cubic-bezier(.2,.8,.2,1);
    backface-visibility: hidden;
}
.rb-left {
    border-radius: 12px 3px 3px 12px;
    transform-origin: right center;
    transform: rotateY(12deg);
}
.rb-right {
    border-radius: 3px 12px 12px 3px;
    transform-origin: left center;
    transform: rotateY(-12deg);
    box-shadow: inset 24px 0 30px -18px rgba(0,0,0,.22), inset 0 0 30px rgba(0,0,0,.05);
    display: flex; flex-direction: column; justify-content: center;
}
.rulebook:hover .rb-left  { transform: rotateY(7deg); }
.rulebook:hover .rb-right { transform: rotateY(-7deg); }

/* bal oldal: a /rules könyv borítója (fekete, kék SZABÁLYZAT felirat, logó) */
.rb-coverpage {
    background: linear-gradient(135deg, #111, #222);
    border: 4px solid #333;
    color: #fff;
    display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
    box-shadow: inset -6px 0 14px rgba(0,0,0,.6);
}
.rb-cover-title {
    font-family: 'Oswald', sans-serif;
    font-size: 2.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    line-height: 1;
}
.rb-cover-logo {
    width: 128px; height: 128px; margin: 28px 0;
    border-radius: 50%;
    filter: drop-shadow(0 0 18px rgba(0,132,255,.45));
    animation: rb-logo 4s ease-in-out infinite;
}
@keyframes rb-logo { 0%,100% { filter: drop-shadow(0 0 12px rgba(0,132,255,.35)); } 50% { filter: drop-shadow(0 0 26px rgba(0,132,255,.75)); } }
.rb-cover-sub { font-family: 'Montserrat', sans-serif; font-size: 1.15rem; font-weight: 700; color: #aaa; }

.rb-spine {
    position: absolute; top: 0; bottom: 0; left: 50%; width: 30px; margin-left: -15px;
    background: linear-gradient(90deg, rgba(0,0,0,.35), rgba(0,0,0,.12) 50%, transparent);
    pointer-events: none;
}

/* jobb oldal: mint egy szabálylap */
.rb-pill {
    align-self: flex-start;
    font-size: .68rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--primary); background: rgba(0,132,255,.12);
    padding: 4px 12px; border-radius: 20px; margin-bottom: 10px;
}
.rb-h {
    font-family: 'Oswald', sans-serif;
    font-size: 1.65rem; font-weight: 700; line-height: 1.2;
    color: var(--primary);
    border-bottom: 2px solid rgba(0,132,255,.2);
    padding-bottom: 6px; margin-bottom: 16px;
}
.rb-right p { font-size: .9rem; line-height: 1.7; margin-bottom: 10px; text-align: left; }
.rb-right strong { color: #222; }
.rb-btn {
    align-self: center;
    margin-top: 10px;
    display: inline-flex; align-items: center; gap: 10px;
    padding: 13px 28px;
    border-radius: 30px;
    font: 700 .9rem/1 'Poppins', sans-serif;
    letter-spacing: 1px; text-transform: uppercase;
    color: #fff;
    background: linear-gradient(135deg, #0084ff, #00a2ff);
    box-shadow: 0 8px 18px rgba(0,132,255,.35);
    transition: transform .25s ease, box-shadow .25s ease;
}
.rb-btn:hover, .rb-btn:focus-visible { transform: translateY(-2px) scale(1.03); box-shadow: 0 12px 26px rgba(0,132,255,.55); }
.rb-pagenum { position: absolute; bottom: 14px; left: 0; right: 0; text-align: center; font-size: .72rem; color: #aaa; }

/* kék cetlik a lap szélén, mint a /rules könyvön */
.rb-tabs { position: absolute; top: 34px; left: 100%; display: flex; flex-direction: column; gap: 12px; }
.rb-tab {
    position: relative;
    margin-left: -26px;
    padding: 7px 14px 7px 36px;
    width: max-content;
    font: 700 .72rem/1.2 'Montserrat', sans-serif;
    color: #fff;
    background: linear-gradient(180deg, rgba(255,255,255,.22) 0%, rgba(255,255,255,0) 55%), var(--primary);
    border-top: 1px solid rgba(255,255,255,.35);
    border-bottom: 1px solid rgba(0,0,0,.25);
    border-radius: 0 8px 8px 0;
    box-shadow: inset 10px 0 10px -8px rgba(0,0,0,.45), 3px 3px 7px rgba(0,0,0,.35);
    transition: transform .2s ease;
}
.rb-tab::before { content: ''; position: absolute; top: 0; bottom: 0; left: 0; width: 26px; background: linear-gradient(90deg, rgba(0,0,0,.28), rgba(0,0,0,.05)); }
.rulebook:hover .rb-tab:nth-child(1) { transform: translateX(4px); }
.rulebook:hover .rb-tab:nth-child(3) { transform: translateX(3px); }

/* könyvjelző szalag */
.rb-ribbon {
    position: absolute; top: -8px; left: calc(50% + 26px);
    width: 18px; height: calc(100% + 64px);
    background: linear-gradient(90deg, #0062c4, #0084ff 50%, #0062c4);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 88%, 0 100%);
    transform-origin: top center;
    box-shadow: 0 4px 8px rgba(0,0,0,.4);
    animation: rb-ribbon 5s ease-in-out infinite;
    pointer-events: none;
}
@keyframes rb-ribbon { 0%,100% { transform: rotate(1.5deg); } 50% { transform: rotate(-2deg); } }

/* árnyék alul, a lebegéssel együtt lélegzik */
.rb-shadow {
    position: absolute; left: 18%; right: 24%; bottom: 8px; height: 34px;
    border-radius: 50%;
    background: radial-gradient(closest-side, rgba(0,90,200,.35), rgba(0,0,0,.45) 40%, transparent);
    filter: blur(6px);
    animation: rb-shadow 6.5s ease-in-out infinite;
}
@keyframes rb-shadow { 0%,100% { transform: scale(1); opacity: .9; } 50% { transform: scale(.82); opacity: .55; } }

#rules .section-title { font-size: clamp(1.7rem, 7vw, 3rem); }

/* mobil: egymás alatti lapok, döntés és cetlik nélkül */
@media (max-width: 760px) {
    .rb-stage { padding-right: 0; }
    .rulebook { grid-template-columns: 1fr; transform: none; min-height: 0; }
    .rb-left, .rb-right, .rulebook:hover .rb-left, .rulebook:hover .rb-right { transform: none; }
    .rb-left { border-radius: 12px 12px 3px 3px; padding: 28px 20px; }
    .rb-right { border-radius: 3px 3px 12px 12px; padding: 26px 20px 40px; box-shadow: inset 0 0 30px rgba(0,0,0,.05); }
    .rb-cover-title { font-size: 2rem; }
    .rb-cover-logo { width: 96px; height: 96px; margin: 18px 0; }
    .rb-spine, .rb-stack, .rb-ribbon, .rb-tabs { display: none; }
    .rb-back { inset: -8px; }
}
@media (prefers-reduced-motion: reduce) {
    .rb-float, .rb-shadow, .rb-ribbon, .rb-cover-logo { animation: none; }
}