html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

/* =====================
   SHARED FLOAT BUTTON
===================== */

.back-to-top,
.wa-float {
    width: 56px;
    height: 56px;
    right: 30px;
    border-radius: 50%;
    position: fixed;

    display: flex;
    align-items: center;
    justify-content: center;

    opacity: 0;
    transform: scale(.6);
    pointer-events: none;

    transition: .3s cubic-bezier(.2, .6, .3, 1);
    z-index: 9999;
}

/* SHOW STATE */
.float-show {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}


/* =====================
   BACK TO TOP
===================== */

.back-to-top {
    bottom: 30px;
    background: rgba(201, 106, 80, .92);
    backdrop-filter: blur(4px);

    box-shadow: 0 8px 20px rgba(0, 0, 0, .15),
    0 0 0 rgba(201, 106, 80, 0);
}

.back-to-top:hover {
    background: #B4573F;
}


/* SVG */
.arrow-svg { width:100%; height:100%; }

.progress-ring {
    fill:none;
    stroke:#fff;
    stroke-width:4;
    opacity:.35;
    stroke-dasharray:283;
    stroke-dashoffset:283;
}

.arrow-icon {
    fill:none;
    stroke:#fff;
    stroke-width:6;
    stroke-linecap:round;
    stroke-linejoin:round;
    animation:arrowPulse 1.4s infinite ease-in-out;
}

@keyframes arrowPulse {
    0%   { transform:translateY(3px);  opacity:.7; }
    50%  { transform:translateY(0);    opacity:1; }
    100% { transform:translateY(3px);  opacity:.7; }
}


/* =====================
   WHATSAPP FLOAT
===================== */

.wa-float {
    bottom:110px;
    background:#25D366;

    box-shadow:
            0 10px 30px rgba(0,0,0,.25),
            inset 0 0 0 2px rgba(255,255,255,.15);

    animation:waPulse 2.4s ease-in-out infinite;
}

.wa-icon {
    width:28px;
    height:28px;
    fill:#fff;
}

.wa-float:hover {
    background:#1EBE5D;
    transform:scale(1.06);
}

@keyframes waPulse {
    0% {
        box-shadow:
                0 0 0 0 rgba(37,211,102,.45),
                0 10px 30px rgba(0,0,0,.25);
    }
    70% {
        box-shadow:
                0 0 0 14px rgba(37,211,102,0),
                0 10px 30px rgba(0,0,0,.25);
    }
    100% {
        box-shadow:
                0 0 0 0 rgba(37,211,102,0),
                0 10px 30px rgba(0,0,0,.25);
    }
}


/* =====================
   MOBILE FLOAT BUTTON
===================== */

@media(max-width:768px){

    .back-to-top,
    .wa-float{
        width:48px;
        height:48px;
        right:20px;
    }

    .back-to-top{ bottom:20px; }
    .wa-float{ bottom:90px; }
}


/* =========================
   REMOVE FOCUS RING
========================= */

.back-to-top,
.back-to-top:focus,
.back-to-top:active{
    outline:none !important;
    box-shadow:inherit;
}

.back-to-top::-moz-focus-inner{
    border:0;
}

.back-to-top:focus-visible{
    outline:2px solid rgba(201,106,80,.6);
    outline-offset:3px;
}


/* =========================
   NUCLEAR FIX BACK TO TOP
========================= */

.back-to-top{
    border:none !important;
    outline:none !important;
    box-shadow:
            0 8px 20px rgba(0,0,0,.15),
            0 0 18px rgba(201,106,80,.45);
}

.back-to-top:focus,
.back-to-top:active,
.back-to-top:focus-visible{
    outline:none !important;
    box-shadow:
            0 8px 20px rgba(0,0,0,.15),
            0 0 18px rgba(201,106,80,.45) !important;
}

.back-to-top::-moz-focus-inner{
    border:0 !important;
}


/* =========================
   STICKY FOOTER LAYOUT
========================= */

html, body{
    height:100%;
}

body{
    min-height:100vh;
    display:flex;
    flex-direction:column;
}

.page-content{
    /*flex:1;*/
    padding-top:60px; /* match navbar height */
}



/* ========================
   MENU AREA (FINAL CLEAN)
======================== */

.menu-book{
    background:#0e0e0e;
    min-height:100vh;

    /* FINAL OFFSET => navbar + fixed tabs */
    padding-top:160px;
    padding-bottom:80px;
}


/* TABS (NO GAP / NO OVERRIDE) */
.menu-tabs{
    display:flex;
    justify-content:center;
    gap:38px;
    flex-wrap:wrap;

    margin:0;
    padding:0;
}

.menu-tabs button{
    background:none;
    border:none;
    color:rgba(255,255,255,.5);
    letter-spacing:4px;
    font-size:13px;
    padding-bottom:6px;
    cursor:pointer;
    border-bottom:2px solid transparent;
}

.menu-tabs button.active{
    color:#caa27a;
    border-color:#caa27a;
}


/* IMAGE STACK */
.menu-pages{
    max-width:1100px;
    margin:auto;
    display:none;
    padding:0 10px;
}

.menu-pages.active{
    display:block;
}

.menu-pages img{
    width:100%;
    display:block;
    margin-bottom:28px;
    border-radius:14px;
    box-shadow:0 20px 40px rgba(0,0,0,.5);
}