/* =========================================================================
   Bianca Passafini · O Melhor do Rio — styles.css
   CSS próprio, leve, mobile-first. Paleta: oceano, coral/âmbar, creme.
   ========================================================================= */
:root{
  --ocean:#2E6B8A; --ocean-d:#1E4A60; --coral:#E8896B; --amber:#F0B429;
  --cream:#FBF7F0; --cream-2:#F4ECE0; --ink:#26333F; --slate:#5b6b78;
  --wa:#25D366;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--ink);background:#fff;line-height:1.6;overflow-x:hidden}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.font-serif{font-family:'Playfair Display',Georgia,serif}

/* ---------- utilities mínimas usadas no HTML ---------- */
.fixed{position:fixed}.relative{position:relative}.absolute{position:absolute}
.inset-0{inset:0}.inset-x-0{left:0;right:0}.top-0{top:0}.bottom-6{bottom:1.5rem}
.z-10{z-index:10}.z-40{z-index:40}.z-50{z-index:50}
.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline-flex{display:inline-flex}
.flex-col{flex-direction:column}.items-center{align-items:center}.items-end{align-items:flex-end}
.justify-center{justify-content:center}.justify-between{justify-content:space-between}
.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.gap-7{gap:1.75rem}.gap-10{gap:2.5rem}
.flex-1{flex:1}
.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}
.text-center{text-align:center}
.min-h-screen{min-height:100vh;min-height:100svh}
.h-6{height:1.5rem}.h-16{height:4rem}
.w-full{width:100%}.max-w-md{max-width:28rem}.max-w-xl{max-width:36rem}.max-w-2xl{max-width:42rem}
.max-w-3xl{max-width:48rem}.max-w-5xl{max-width:64rem}.max-w-6xl{max-width:72rem}.mx-auto{margin-left:auto;margin-right:auto}
.px-5{padding-left:1.25rem;padding-right:1.25rem}.px-6{padding-left:1.5rem;padding-right:1.5rem}.px-4{padding-left:1rem;padding-right:1rem}
.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-10{padding-top:2.5rem;padding-bottom:2.5rem}
.py-16{padding-top:4rem;padding-bottom:4rem}.py-20{padding-top:5rem;padding-bottom:5rem}
.p-3{padding:.75rem}.p-5{padding:1.25rem}
.pt-24{padding-top:6rem}.pt-22{padding-top:5.5rem}.pb-16{padding-bottom:4rem}
.mt-1{margin-top:.25rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-9{margin-top:2.25rem}
.mt-16{margin-top:4rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}
.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.mb-10{margin-bottom:2.5rem}.mb-5{margin-bottom:1.25rem}
.leading-none{line-height:1}.leading-tight{line-height:1.2}.leading-snug{line-height:1.35}.leading-relaxed{line-height:1.7}
.tracking-wide{letter-spacing:.05em}
.uppercase{text-transform:uppercase}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.font-extrabold{font-weight:800}
.text-xs{font-size:.75rem}.text-sm{font-size:.875rem}.text-base{font-size:1rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}
.text-2xl{font-size:1.5rem}.text-3xl{font-size:1.875rem}.text-4xl{font-size:2.25rem}.text-5xl{font-size:3rem}.text-6xl{font-size:3.75rem}.text-7xl{font-size:4.5rem}.text-3xl{font-size:1.875rem}
.text-white{color:#fff}.text-ink{color:var(--ink)}.text-ocean{color:var(--ocean)}
.text-slate-400{color:#94a3b8}.text-slate-500{color:#64748b}.text-slate-600{color:#475569}
.text-amber-300{color:var(--amber)}.text-emerald-400{color:#34d399}
.rounded-2xl{border-radius:1rem}.rounded-full{border-radius:9999px}
.shadow-xl{box-shadow:0 20px 40px rgba(0,0,0,.15)}
.bg-cream{background:var(--cream)}.bg-ink{background:var(--ink)}
.order-1{order:1}.order-2{order:2}
.backdrop-blur{backdrop-filter:blur(10px)}
.transition{transition:all .2s ease}.transition-all{transition:all .3s ease}
.overflow-hidden{overflow:hidden}
em{font-style:normal}

@media(min-width:640px){
  .sm\:grid-cols-2{grid-template-columns:repeat(2,1fr)}
  .sm\:grid-cols-6{grid-template-columns:repeat(6,1fr)}
}
@media(min-width:768px){
  .md\:flex{display:flex}.md\:hidden{display:none}.md\:grid-cols-2{grid-template-columns:repeat(2,1fr)}.md\:grid-cols-3{grid-template-columns:repeat(3,1fr)}
  .md\:text-base{font-size:1rem}.md\:text-lg{font-size:1.125rem}.md\:text-6xl{font-size:3.75rem}.md\:text-7xl{font-size:4.5rem}.md\:text-4xl{font-size:2.25rem}.md\:text-xl{font-size:1.25rem}
  .md\:order-1{order:1}.md\:order-2{order:2}
}
@media(min-width:1024px){
  .lg\:grid-cols-3{grid-template-columns:repeat(3,1fr)}.lg\:grid-cols-4{grid-template-columns:repeat(4,1fr)}
}

/* ====================== SPLASH ====================== */
.splash{background:var(--ink)}
.splash-bg{position:absolute;inset:0;background:url('img/hero_rio.jpg') center/cover;
  animation:slowzoom 18s ease-in-out infinite alternate}
@keyframes slowzoom{from{transform:scale(1)}to{transform:scale(1.12)}}
.splash-overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(30,74,96,.78),rgba(38,51,63,.88))}
.lang-btn:active{transform:scale(.94)}
/* bandeiras imagem */
.flag-img{width:40px;height:30px;object-fit:cover;border-radius:4px;box-shadow:0 2px 6px rgba(0,0,0,.25)}
.flag-nav{padding:0;border:none;background:none;cursor:pointer;opacity:.55;transition:opacity .2s,transform .2s;line-height:0}
.flag-nav img{width:26px;height:19px;object-fit:cover;border-radius:3px;display:block;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.flag-nav:hover{opacity:1}
.flag-active{opacity:1;transform:scale(1.12)}
.flag-active img{outline:2px solid var(--amber);outline-offset:1px}

/* ====================== NAV ====================== */
.nav{background:linear-gradient(180deg,rgba(30,74,96,.55),transparent);transition:background .3s}
.nav.scrolled{background:rgba(30,74,96,.96);box-shadow:0 4px 20px rgba(0,0,0,.15)}

/* ====================== HERO ====================== */
.hero{overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('img/hero_rio.jpg') center/cover;background-attachment:scroll}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(30,74,96,.82) 0%,rgba(30,74,96,.45) 50%,rgba(38,51,63,.6) 100%)}
.btn-primary{background:var(--wa);color:#fff;font-weight:600;padding:.9rem 1.8rem;border-radius:9999px;
  font-size:1.05rem;box-shadow:0 10px 28px rgba(37,211,102,.4);transition:transform .15s,box-shadow .15s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(37,211,102,.5)}

/* ====================== SECTIONS ====================== */
.kicker{display:block;text-transform:uppercase;letter-spacing:.2em;font-size:.72rem;font-weight:700;color:var(--coral);margin-bottom:.4rem}
.section-title{font-family:'Playfair Display',serif;font-size:2rem;font-weight:800;color:var(--ocean-d);line-height:1.15}

/* ====================== TOUR CARDS ====================== */
.tour-card{background:#fff;border-radius:1rem;overflow:hidden;box-shadow:0 6px 22px rgba(38,51,63,.09);
  transition:transform .25s,box-shadow .25s}
.tour-card:hover{transform:translateY(-5px);box-shadow:0 16px 38px rgba(38,51,63,.16)}
.tour-img-wrap{position:relative;height:200px;overflow:hidden}
.tour-img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.tour-card:hover .tour-img{transform:scale(1.07)}
.tour-badge{position:absolute;top:.7rem;right:.7rem;background:var(--amber);color:#fff;font-size:.8rem;
  width:1.8rem;height:1.8rem;display:flex;align-items:center;justify-content:center;border-radius:9999px;box-shadow:0 3px 8px rgba(0,0,0,.2)}
.btn-book{background:var(--ocean);color:#fff;font-size:.82rem;font-weight:600;padding:.5rem 1rem;border-radius:9999px;border:none;cursor:pointer;transition:background .2s}
.btn-book:hover{background:var(--ocean-d)}
.price{display:flex;align-items:baseline;gap:.25rem;flex-wrap:wrap}

/* mini cards (todos os passeios) */
.tour-mini{background:#fff;border-radius:.8rem;overflow:hidden;box-shadow:0 4px 14px rgba(38,51,63,.08);cursor:pointer;transition:transform .2s,box-shadow .2s}
.tour-mini:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(38,51,63,.14)}
.tour-mini-img-wrap{position:relative;height:110px;overflow:hidden}
.tour-mini-img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.tour-mini:hover .tour-mini-img{transform:scale(1.08)}
.tour-badge-sm{position:absolute;top:.4rem;right:.4rem;background:var(--amber);color:#fff;font-size:.6rem;width:1.2rem;height:1.2rem;display:flex;align-items:center;justify-content:center;border-radius:9999px}

/* ====================== PRÉ-RESERVA ====================== */
.reserva-bg{background:url('img/hero_ipanema.jpg') center/cover fixed}
.reserva-overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(30,74,96,.9),rgba(38,51,63,.92))}
.booking-card{background:#fff;border-radius:1.2rem;padding:1.8rem;box-shadow:0 24px 50px rgba(0,0,0,.3)}
.field-label{display:block;font-size:.8rem;font-weight:600;color:var(--ink);margin-bottom:.35rem}
.field-label .opt{font-size:.72rem;color:#94a3b8;font-weight:500}
.field{width:100%;border:1.5px solid #e2e0db;border-radius:.7rem;padding:.7rem .9rem;font-size:1rem;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s}
.field:focus{outline:none;border-color:var(--ocean)}
select.field{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%232E6B8A' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .9rem center;padding-right:2.4rem}
input[type=date].field{cursor:pointer}
input[type=date].field::-webkit-calendar-picker-indicator{cursor:pointer}
input[type=date].date-empty{color:#aeb6bd;opacity:.7}
.nodate-btn{border:1.5px solid #e2e0db;border-radius:.7rem;padding:.7rem .9rem;font-size:.78rem;font-weight:500;color:var(--slate);background:#fff;cursor:pointer;white-space:nowrap;transition:all .2s;line-height:1.2}
.nodate-btn:hover{border-color:var(--ocean)}
.nodate-on{background:var(--ocean);color:#fff;border-color:var(--ocean)}
.stepper{display:inline-flex;align-items:center;gap:1.5rem;border:1.5px solid #e2e0db;border-radius:.7rem;padding:.4rem 1.2rem}
.stepper button{width:2rem;height:2rem;border:none;background:var(--cream-2);border-radius:9999px;font-size:1.3rem;color:var(--ocean);cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1}
.stepper button:hover{background:var(--ocean);color:#fff}
.stepper span{font-size:1.15rem;font-weight:700;min-width:1.5rem;text-align:center}
.btn-send{width:100%;background:var(--wa);color:#fff;font-weight:700;font-size:1.05rem;padding:.95rem;border-radius:.8rem;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.6rem;transition:transform .15s,opacity .2s;box-shadow:0 8px 22px rgba(37,211,102,.35)}
.btn-send:hover:not(:disabled){transform:translateY(-2px)}
.btn-send:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}

/* ====================== WHATSAPP FLUTUANTE ====================== */
.wa-float{position:fixed;bottom:1.3rem;right:1.3rem;z-index:45;width:3.7rem;height:3.7rem;background:var(--wa);color:#fff;border-radius:9999px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(37,211,102,.5);animation:wapulse 2.6s infinite}
.wa-float:hover{transform:scale(1.08)}
@keyframes wapulse{0%{box-shadow:0 8px 24px rgba(37,211,102,.5),0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 8px 24px rgba(37,211,102,.5),0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 8px 24px rgba(37,211,102,.5),0 0 0 0 rgba(37,211,102,0)}}

/* reduce motion */
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto}}