/* ============================================================
   FLOW BRAZILIAN JIU JITSU — style.css  (Revision 1)
   Navy theme · Inter · mobile-first · hamburger < 1024px
   ============================================================ */

:root{
  --bg:#0c1a2e; --bg-2:#0f2238; --surface:#13283f; --line:#1d3550;
  --text:#ffffff; --muted:#aebfd0;
  --accent:#5b9bd5; --accent-bright:#7fb4e6; --accent-ink:#0c1a2e;
  --footer-bg:#081120; --hero-overlay:rgba(8,16,30,0.62);
  --display:'Inter',sans-serif; --body:'Inter',sans-serif;
  --nav-h:64px; --wrap:1180px; --btn-radius:5px;
  /* FLW-matched type scale */
  --fs-heading:clamp(1.9rem,3.4vw,2.9rem); --fs-body:0.95rem; --fs-sm:0.85rem; --fs-xs:0.80rem;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{background:var(--bg);color:var(--text);font-family:var(--body);font-size:var(--fs-body);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;padding-bottom:72px;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,.display{font-family:var(--display);font-weight:800;text-transform:none;line-height:1.06;letter-spacing:-0.02em;}
h1{text-transform:uppercase;font-weight:600;letter-spacing:0;line-height:1.1;}
.accent{color:var(--accent);}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;width:100%;}
.eyebrow{font-family:var(--body);font-size:0.74rem;font-weight:700;letter-spacing:0.2em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--body);font-weight:700;font-size:0.84rem;letter-spacing:0.03em;text-transform:uppercase;text-align:center;min-height:48px;padding:13px 26px;border-radius:var(--btn-radius);cursor:pointer;border:2px solid var(--accent);transition:transform .15s,background .15s,color .15s,border-color .15s;}
.btn-primary{background:linear-gradient(180deg,rgba(255,255,255,0.16),rgba(0,0,0,0.06)),var(--accent);color:var(--accent-ink);}
.btn-primary:hover{background:linear-gradient(180deg,rgba(255,255,255,0.16),rgba(0,0,0,0.06)),var(--accent-bright);border-color:var(--accent-bright);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,0.5);}
.btn-ghost:hover{border-color:var(--text);background:rgba(255,255,255,0.06);}
.btn-block{width:100%;}

/* ---------- social icons ---------- */
.ico{width:20px;height:20px;fill:currentColor;display:block;}
.nav-socials .ico{width:26px;height:26px;}
.nav-socials{display:none;}
.nav-socials a,.foot-socials a{color:var(--muted);transition:color .15s;}
.nav-socials a:hover,.foot-socials a:hover{color:var(--accent);}
.foot-socials{display:flex;gap:14px;margin-top:10px;}

/* ---------- nav (mobile-first; hamburger until 1024) ---------- */
nav.site-nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);padding:0 18px;background:rgba(12,26,46,0.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav-logo{display:flex;align-items:center;gap:9px;font-family:var(--display);font-weight:800;font-size:1.05rem;letter-spacing:-0.01em;}
.nav-logo img{height:34px;width:auto;}
.nav-menu{display:none;}
.nav-cta-desktop{display:none;}
#nav-toggle{display:none;}
.hamburger{display:flex;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer;}
.hamburger span{display:block;width:24px;height:2px;background:var(--text);transition:transform .25s,opacity .25s;}
#nav-toggle:checked ~ .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
#nav-toggle:checked ~ .hamburger span:nth-child(2){opacity:0;}
#nav-toggle:checked ~ .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-menu{position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;z-index:99;background:var(--bg);padding:24px 22px;display:flex;flex-direction:column;gap:2px;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;}
#nav-toggle:checked ~ .mobile-menu{transform:translateX(0);}
.mobile-menu a{padding:14px 4px;font-family:var(--display);font-weight:700;font-size:1.25rem;border-bottom:1px solid var(--line);}
.mobile-menu a.mm-cta{margin-top:18px;border:none;}
.mobile-menu .mm-socials{display:flex;gap:18px;margin-top:18px;}
.mobile-menu .mm-socials a{border:none;padding:0;color:var(--accent);}

/* ---------- event bar (temporary seminar promo, below hero) ---------- */
.event-bar{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;background:var(--bg-2);border-top:1px solid var(--accent);border-bottom:1px solid var(--accent);padding:11px 18px;text-align:center;}
.event-bar .eb-tag{background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:0.64rem;letter-spacing:0.12em;text-transform:uppercase;padding:4px 9px;border-radius:4px;}
.event-bar .eb-text{font-size:0.9rem;color:var(--text);}
.event-bar a.eb-link{color:var(--accent);font-weight:700;font-size:0.82rem;text-transform:uppercase;letter-spacing:0.03em;white-space:nowrap;}
.event-bar a.eb-link:hover{color:var(--accent-bright);}

/* ---------- hero ---------- */
.hero{position:relative;min-height:72vh;min-height:72svh;display:flex;align-items:flex-end;padding:0 0 48px;background:linear-gradient(180deg,rgba(8,16,30,0.15),var(--hero-overlay) 72%),var(--bg) center 60%/cover no-repeat;}
.hero .wrap{position:relative;z-index:2;}
.hero h1{font-size:clamp(3rem,6vw,5rem);max-width:18ch;}
.hero .tagline{font-family:var(--display);font-weight:700;font-size:clamp(1rem,4vw,1.5rem);letter-spacing:0.02em;margin:12px 0 24px;}
.hero .hero-btns{display:flex;flex-direction:column;gap:12px;}
.hero .hero-btns .btn{width:100%;}

/* ---------- compact interior header (no big bg image) ---------- */
.page-head-light{background:var(--bg-2);border-bottom:1px solid var(--line);padding:54px 0 46px;}
.page-head-light h1{font-size:var(--fs-heading);}
.page-head-light .wrap{max-width:760px;}
.page-head-light .lede{color:var(--muted);max-width:60ch;margin-top:14px;font-size:1.05rem;}
/* tasteful low-opacity wave watermark in section corners */
.page-head-light,.cta-band{position:relative;overflow:hidden;}
.page-head-light::after,.cta-band::after{content:'';position:absolute;right:-24px;bottom:-44px;width:min(38%,280px);aspect-ratio:1;background:url('images/logo-wave-white.png') right bottom/contain no-repeat;opacity:0.05;pointer-events:none;}
.page-head-light .wrap,.cta-band .wrap{position:relative;z-index:1;}

/* ---------- sections ---------- */
section{padding:64px 0;}
.section-head{margin-bottom:34px;}
.section-head h2{font-size:var(--fs-heading);}
.section-head p{color:var(--muted);margin-top:12px;max-width:60ch;}
.bg-2{background:var(--bg-2);}
.band{display:flex;flex-direction:column;gap:24px;align-items:center;}
.band .band-media img{border-radius:12px;width:100%;object-fit:cover;}
.band .band-body h2{font-size:var(--fs-heading);margin-bottom:16px;}
.band .band-body p{color:var(--muted);margin-bottom:20px;}

/* ---------- cards / programs ---------- */
.cards{display:grid;grid-template-columns:1fr;gap:16px;}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .2s,border-color .2s;}
.card:hover{transform:translateY(-4px);border-color:var(--accent);}
.card img{width:100%;height:200px;object-fit:cover;}
.card .card-body{padding:22px 22px 26px;}
.card h3{font-size:1.4rem;margin-bottom:10px;}
.card p{color:var(--muted);font-size:0.85rem;margin-bottom:16px;}
.card .more{font-weight:700;font-size:0.8rem;letter-spacing:0.04em;text-transform:uppercase;color:var(--accent);}

/* ---------- instructors ---------- */
.inst-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.inst{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;text-align:center;}
.inst img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.inst .inst-body{padding:16px 12px 20px;}
.inst h3{font-size:1.1rem;}
.inst .belt{color:var(--accent);font-size:0.78rem;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;margin:6px 0 4px;}
.inst .role{color:var(--muted);font-size:0.84rem;}
.inst .ig{display:inline-block;margin-top:10px;font-size:0.78rem;color:var(--accent);font-weight:600;}

/* ---------- schedule: day list + week toggle ---------- */
.view-toggle{display:inline-flex;border:1px solid var(--line);border-radius:var(--btn-radius);overflow:hidden;margin-bottom:24px;}
.view-toggle button{background:transparent;color:var(--muted);border:none;padding:10px 20px;font-family:var(--body);font-weight:700;font-size:0.8rem;cursor:pointer;text-transform:uppercase;letter-spacing:0.03em;}
.view-toggle button.active{background:var(--accent);color:var(--accent-ink);}
.sched-day{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;}
.sched-day h3{background:var(--bg-2);padding:12px 18px;font-size:1.15rem;border-bottom:1px solid var(--line);}
.sched-row{display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-bottom:1px solid var(--line);}
.sched-row:last-child{border-bottom:none;}
.sched-row .time{font-weight:700;color:var(--accent);font-size:0.9rem;}
.sched-row .cls{font-size:0.98rem;}
.sched-row .coach{color:var(--muted);font-size:0.84rem;}
.sched-week{display:none;grid-template-columns:repeat(7,1fr);gap:10px;}
.wk-day{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px;}
.wk-day h4{font-size:0.8rem;color:var(--accent);text-transform:uppercase;letter-spacing:0.03em;margin-bottom:8px;border-bottom:1px solid var(--line);padding-bottom:6px;}
.wk-cls{font-size:0.74rem;margin-bottom:8px;color:var(--muted);}
.wk-cls .t{display:block;color:var(--accent);font-weight:600;}
.wk-cls .n{color:var(--text);}
/* responsive schedule: day list on mobile, week grid >=768 (no toggle) */
@media (min-width:768px){
  .sched-list{display:none;}
  .sched-week{display:grid;}
}

/* ---------- pricing tiles ---------- */
.price-grid{display:grid;grid-template-columns:1fr;gap:14px;}
.price{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px;}
.price h3{font-size:1.25rem;margin-bottom:8px;}
.price .amt{font-family:var(--display);font-weight:800;font-size:2rem;color:var(--accent);letter-spacing:-0.02em;}
.price .amt small{font-family:var(--body);font-size:0.85rem;color:var(--muted);font-weight:400;}
.price p{color:var(--muted);font-size:0.9rem;margin-top:8px;}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.gallery img{width:100%;height:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;}

/* ---------- reviews: auto side-scroll marquee ---------- */
.review-strip{overflow:hidden;position:relative;padding:8px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);}
.review-track{display:flex;gap:48px;width:max-content;animation:reviewscroll 70s linear infinite;}
.review-strip:hover .review-track{animation-play-state:paused;}
.rquote{white-space:nowrap;font-size:1.05rem;color:var(--text);display:flex;align-items:center;gap:10px;}
.rquote .stars{color:var(--accent);letter-spacing:0.08em;font-size:0.9rem;}
.rquote .who{color:var(--muted);font-weight:600;}
@keyframes reviewscroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ---------- seminar (full page) ---------- */
.seminar{background:linear-gradient(135deg,var(--bg-2),var(--surface));border:1px solid var(--accent);border-radius:14px;padding:28px 24px;text-align:center;}
.seminar .tag{color:var(--accent);font-weight:700;letter-spacing:0.16em;text-transform:uppercase;font-size:0.74rem;}
.seminar h2{font-size:var(--fs-heading);margin:8px 0 6px;}
.seminar .det{color:var(--muted);font-size:0.98rem;margin-bottom:6px;}
.seminar .price-line{font-weight:700;margin:10px 0 20px;}

/* ---------- donation ---------- */
.donate{text-align:center;}
.donate .heart{font-size:2rem;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--accent);color:var(--accent-ink);text-align:center;}
.cta-band h2{font-size:var(--fs-heading);margin-bottom:8px;}
.cta-band p{font-size:1.05rem;margin-bottom:24px;opacity:0.92;}
.cta-band .btn{background:var(--accent-ink);color:#fff;border-color:var(--accent-ink);}
.cta-band .btn:hover{background:#06101e;}

/* ---------- forms ---------- */
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:0.82rem;font-weight:600;letter-spacing:0.03em;text-transform:uppercase;color:var(--muted);margin-bottom:7px;}
.form-field input,.form-field textarea,.form-field select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:14px;font-family:var(--body);font-size:1rem;min-height:50px;}
.form-field textarea{min-height:130px;resize:vertical;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--accent);}
.checks{display:flex;flex-wrap:wrap;gap:10px 18px;}
.checks label{display:flex;align-items:center;gap:8px;font-size:0.92rem;color:var(--text);text-transform:none;letter-spacing:0;font-weight:400;}
.checks input{width:auto;min-height:0;}
.waiver-box{max-height:200px;overflow-y:auto;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:16px;font-size:0.85rem;color:var(--muted);line-height:1.6;margin-bottom:14px;}

/* ---------- newsletter ---------- */
.newsletter{background:var(--bg-2);border-top:1px solid var(--line);padding:46px 0;}
.newsletter h3{font-size:1.5rem;margin-bottom:8px;}
.newsletter p{color:var(--muted);margin-bottom:18px;}
.nl-form{display:flex;flex-direction:column;gap:10px;max-width:440px;}
.nl-form input{background:var(--bg);border:1px solid var(--line);border-radius:var(--btn-radius);color:var(--text);padding:14px 18px;font-size:1rem;min-height:50px;}
.nl-msg{font-size:0.9rem;color:var(--accent);margin-top:10px;min-height:1.2em;}

/* ---------- footer ---------- */
footer.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:46px 0 30px;}
.foot-grid{display:flex;flex-direction:column;gap:30px;}
.foot-logo{display:flex;align-items:center;gap:9px;font-family:var(--display);font-weight:800;font-size:1.2rem;margin-bottom:12px;}
.foot-logo img{height:30px;width:auto;}
.foot-col h4{font-size:0.78rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--accent);margin-bottom:12px;}
.foot-col a,.foot-col p{display:block;color:var(--muted);font-size:0.85rem;margin-bottom:8px;}
.foot-col a:hover{color:var(--accent);}
.foot-nav{display:grid;grid-template-columns:1fr 1fr;gap:0 30px;}
.foot-bottom{border-top:1px solid var(--line);margin-top:26px;padding-top:18px;color:var(--muted);font-size:0.76rem;text-align:center;}

/* ---------- partner logos ---------- */
.partners{display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:center;}
.partners img{height:54px;width:auto;opacity:0.85;}

/* ---------- sticky mobile CTA ---------- */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:90;display:flex;gap:10px;padding:10px 14px;background:rgba(12,26,46,0.92);backdrop-filter:blur(12px);border-top:1px solid var(--line);}
.mobile-cta .btn{flex:1;min-height:46px;padding:11px;font-size:0.78rem;}

/* ---------- scroll animations (anim.js hooks) ---------- */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:200;}
html.anim [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
html.anim [data-reveal].in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){html.anim [data-reveal]{opacity:1!important;transform:none!important;}.review-track{animation:none!important;}}

/* ============================================================
   TABLET ≥760: multi-column content (nav stays hamburger)
   ============================================================ */
@media (min-width:760px){
  section{padding:90px 0;}
  .page-head-light{padding:80px 0 64px;}
  .hero .hero-btns{flex-direction:row;}
  .hero .hero-btns .btn{width:auto;}
  .cards{grid-template-columns:repeat(3,1fr);}
  .cards-4{grid-template-columns:repeat(2,1fr);}
  .inst-grid{grid-template-columns:repeat(4,1fr);}
  .price-grid{grid-template-columns:repeat(3,1fr);}
  .gallery{grid-template-columns:repeat(4,1fr);}
  .band{flex-direction:row;}
  .band > *{flex:1;}
  .band.reverse{flex-direction:row-reverse;}
  .nl-form{flex-direction:row;}
  .nl-form input{flex:1;}
  .foot-grid{flex-direction:row;justify-content:center;gap:clamp(56px,12vw,150px);align-items:flex-start;}
  .sched-week{grid-template-columns:repeat(7,1fr);}
  .wk-cls{font-size:0.68rem;}
}

/* ============================================================
   DESKTOP ≥1024: full nav appears, hamburger + mobile bar hide
   ============================================================ */
@media (min-width:1024px){
  :root{--nav-h:72px;}
  body{padding-bottom:0;}
  .mobile-cta{display:none;}
  .hamburger,.mobile-menu{display:none;}
  .nav-menu{display:flex;gap:20px;font-size:0.76rem;font-weight:600;letter-spacing:0.03em;text-transform:uppercase;}
  .nav-menu a{color:var(--muted);transition:color .15s;}
  .nav-menu a:hover,.nav-menu a.active{color:var(--text);}
  .nav-socials{display:flex;gap:12px;align-items:center;}
  .nav-cta-desktop{display:inline-flex;min-height:40px;padding:9px 20px;font-size:0.76rem;}
  .nav-right{display:flex;align-items:center;gap:16px;}
  .hero h1{font-size:clamp(3.4rem,6vw,6rem);}
  .cards-4{grid-template-columns:repeat(4,1fr);}
}