/* ============================================================
   AVIRON — Design System
   ============================================================ */
:root{
  --navy:#1B2A4A;
  --navy-2:#243a63;
  --navy-deep:#12203b;
  --ink:#1c2230;
  --muted:#6b7488;
  --line:#e6e8ee;
  --bg:#ffffff;
  --bg-soft:#f4f5f8;
  --bg-soft-2:#eceef3;
  --white:#ffffff;
  --gold:#c8a04a;
  --gold-soft:#e7d3a1;
  /* medal ribbon accents */
  --r1:#e23b3b; --r2:#f0a125; --r3:#2fa36b; --r4:#2f6fd0; --r5:#7a3fd0;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(18,32,59,.06);
  --shadow:0 14px 40px rgba(18,32,59,.12);
  --shadow-lg:0 30px 80px rgba(18,32,59,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
  --font-head:'Poppins','Segoe UI',sans-serif;
  --font-body:'Inter','Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.15;color:var(--navy)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--font-head);font-weight:600;font-size:.78rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold);margin-bottom:14px;display:block
}
.section{padding:96px 0}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center}
.section-head h2{font-size:clamp(1.9rem,4vw,2.9rem);letter-spacing:-.02em}
.section-head p{color:var(--muted);margin-top:14px;font-size:1.06rem}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  font-family:var(--font-head);font-weight:600;font-size:.98rem;
  padding:15px 28px;border-radius:100px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--navy-2);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy);background:var(--bg-soft)}
.btn-light{background:#fff;color:var(--navy)}
.btn-wa{background:#25D366;color:#fff;box-shadow:0 10px 26px rgba(37,211,102,.32)}
.btn-wa:hover{background:#1eb958;box-shadow:0 16px 34px rgba(37,211,102,.4)}
.btn-block{width:100%}
.btn svg{width:20px;height:20px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;transition:padding .3s var(--ease),background .3s,box-shadow .3s;
}
.site-header.scrolled{padding:10px 0;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;color:var(--navy)}
.logo svg{height:34px;width:auto;display:block}
/* Inline SVG uses currentColor, so the logo follows the .logo color.
   White over the dark hero, navy once the header gains a light background. */
.site-header .logo{color:#fff;transition:color .3s}
.site-header.scrolled .logo{color:var(--navy)}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-family:var(--font-head);font-weight:500;font-size:.95rem;color:var(--ink);position:relative;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--gold);transition:width .3s var(--ease)}
.nav a:hover{color:var(--navy)}
.nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.lang-toggle{
  display:flex;border:1.5px solid var(--line);border-radius:100px;overflow:hidden;font-family:var(--font-head);font-weight:600;font-size:.8rem
}
.lang-toggle button{background:transparent;border:none;padding:7px 12px;cursor:pointer;color:var(--muted);transition:.2s}
.lang-toggle button.active{background:var(--navy);color:#fff}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.3s}

/* --- Adaptive header: light controls over the dark hero (top),
       switching to normal dark-on-light once the header is scrolled --- */
.site-header .nav a{color:#fff}
.site-header .nav a:hover{color:#fff}
.site-header.scrolled .nav a{color:var(--ink)}
.site-header.scrolled .nav a:hover{color:var(--navy)}

.site-header .lang-toggle{border-color:rgba(255,255,255,.4)}
.site-header .lang-toggle button{color:rgba(255,255,255,.8)}
.site-header .lang-toggle button.active{background:#fff;color:var(--navy)}
.site-header.scrolled .lang-toggle{border-color:var(--line)}
.site-header.scrolled .lang-toggle button{color:var(--muted)}
.site-header.scrolled .lang-toggle button.active{background:var(--navy);color:#fff}

.site-header .nav-order-desktop{background:#fff;color:var(--navy)}
.site-header .nav-order-desktop:hover{background:rgba(255,255,255,.88)}
.site-header.scrolled .nav-order-desktop{background:var(--navy);color:#fff}
.site-header.scrolled .nav-order-desktop:hover{background:var(--navy-2)}

.site-header .menu-toggle span{background:#fff}
.site-header.scrolled .menu-toggle span{background:var(--navy)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--navy-deep)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1200px 600px at 75% 15%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(135deg,#12203b 0%,#1B2A4A 45%,#243a63 100%);
}
.hero-ribbons{position:absolute;top:-6%;right:-4%;bottom:-6%;width:40%;display:flex;gap:14px;
  opacity:.5;z-index:0;transform:rotate(6deg);transform-origin:top right;filter:saturate(.85)}
.hero-ribbons span{flex:1;border-radius:0 0 40px 40px;transform:translateY(-6%);animation:sway 7s ease-in-out infinite}
.hero-ribbons span:nth-child(1){background:linear-gradient(180deg,var(--r1),#5c1717);animation-delay:0s}
.hero-ribbons span:nth-child(2){background:linear-gradient(180deg,var(--r2),#6b430c);animation-delay:.5s}
.hero-ribbons span:nth-child(3){background:linear-gradient(180deg,var(--r3),#0f4429);animation-delay:1s}
.hero-ribbons span:nth-child(4){background:linear-gradient(180deg,var(--r4),#12305e);animation-delay:1.5s}
.hero-ribbons span:nth-child(5){background:linear-gradient(180deg,var(--r5),#331861);animation-delay:2s}
.hero-ribbons::after{content:"";position:absolute;inset:-20%;
  background:linear-gradient(105deg,var(--navy-deep) 8%,rgba(18,32,59,.85) 34%,rgba(18,32,59,.25) 70%,transparent 100%)}
@keyframes sway{0%,100%{transform:translateY(-6%)}50%{transform:translateY(-2%)}}
.hero .container{position:relative;z-index:2;width:100%}
.hero-content{max-width:660px;color:#fff;padding:120px 0 60px}
.hero-content .eyebrow{color:var(--gold-soft)}
.hero-content h1{color:#fff;font-size:clamp(2.4rem,5.5vw,4.2rem);letter-spacing:-.03em;margin-bottom:22px}
.hero-content p{font-size:1.18rem;color:rgba(255,255,255,.82);max-width:540px;margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.scroll-cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.6);font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ---------- Products ---------- */
.filters{display:flex;justify-content:center;gap:12px;margin-bottom:44px;flex-wrap:wrap}
.filter-btn{
  font-family:var(--font-head);font-weight:600;font-size:.92rem;
  padding:10px 22px;border-radius:100px;border:1.5px solid var(--line);
  background:#fff;color:var(--muted);cursor:pointer;transition:.25s var(--ease)
}
.filter-btn:hover{border-color:var(--navy);color:var(--navy)}
.filter-btn.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  cursor:pointer;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card-media{position:relative;aspect-ratio:1/1;background:var(--bg-soft);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--navy);font-family:var(--font-head);
  font-weight:600;font-size:.72rem;letter-spacing:.04em;padding:6px 12px;border-radius:100px;
  display:inline-flex;align-items:center;gap:6px;box-shadow:var(--shadow-sm)
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--gold)}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.card-sub{font-size:.78rem;letter-spacing:.05em;text-transform:uppercase;color:var(--gold);font-weight:600;font-family:var(--font-head)}
.card-title{font-size:1.35rem;margin:4px 0 8px}
.card-desc{color:var(--muted);font-size:.92rem;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-price{margin-top:12px;font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:1.15rem}
.card-cta{margin-top:16px;font-family:var(--font-head);font-weight:600;color:var(--navy);font-size:.92rem;display:inline-flex;align-items:center;gap:8px;transition:gap .25s}
.card:hover .card-cta{gap:14px}

/* ---------- How it works ---------- */
.how{background:var(--bg-soft)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.step{background:#fff;border-radius:var(--radius);padding:38px 30px;text-align:center;border:1px solid var(--line);position:relative;transition:transform .3s var(--ease),box-shadow .3s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-num{
  width:56px;height:56px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-head);
  font-weight:700;font-size:1.3rem;margin:0 auto 20px
}
.step h3{font-size:1.25rem;margin-bottom:10px}
.step p{color:var(--muted);font-size:.96rem}

/* ---------- About ---------- */
.about{background:var(--navy-deep);color:#fff;position:relative;overflow:hidden}
.about::before{content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(200,160,74,.18),transparent 70%)}
.about-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;position:relative;z-index:1}
.about h2{color:#fff;font-size:clamp(1.9rem,4vw,2.8rem)}
.about-inner .eyebrow{color:var(--gold-soft)}
.about p{color:rgba(255,255,255,.82);font-size:1.08rem;margin-top:18px}
.stats{display:flex;flex-direction:column;gap:18px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:24px 28px;backdrop-filter:blur(6px)}
.stat b{font-family:var(--font-head);font-size:1.15rem;color:#fff;display:block}
.stat span{color:var(--gold-soft);font-size:.9rem}

/* ---------- Contact ---------- */
.contact{text-align:center}
.contact .container{max-width:680px}
.contact p{color:var(--muted);font-size:1.08rem;margin:14px 0 32px}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.7);padding:56px 0 30px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer .logo{color:#fff}
.site-footer .logo svg{height:30px}
.footer-inner p{max-width:320px;font-size:.95rem}
.footer-social{display:flex;gap:14px}
.footer-social a{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;transition:.25s}
.footer-social a:hover{background:#fff;color:var(--navy);border-color:#fff}
.footer-social svg{width:18px;height:18px}
.footer-bottom{padding-top:24px;font-size:.85rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer-bottom a{opacity:.5;transition:.2s}
.footer-bottom a:hover{opacity:1}

/* ---------- Product Detail (modal/overlay) ---------- */
.detail-overlay{
  position:fixed;inset:0;z-index:200;background:rgba(18,32,59,.55);backdrop-filter:blur(6px);
  display:flex;align-items:flex-start;justify-content:center;padding:40px 20px;overflow-y:auto;
  opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s
}
.detail-overlay.open{opacity:1;visibility:visible}
.detail{
  background:#fff;border-radius:var(--radius);max-width:1040px;width:100%;
  display:grid;grid-template-columns:1fr 1fr;overflow:hidden;box-shadow:var(--shadow-lg);
  transform:translateY(30px) scale(.98);transition:transform .4s var(--ease);margin:auto
}
.detail-overlay.open .detail{transform:translateY(0) scale(1)}
.detail-gallery{background:var(--bg-soft);padding:30px;display:flex;flex-direction:column;gap:16px}
.detail-main-img{border-radius:var(--radius-sm);overflow:hidden;background:#fff;aspect-ratio:1/1;box-shadow:var(--shadow-sm)}
.detail-main-img img{width:100%;height:100%;object-fit:cover}
.detail-thumbs{display:flex;gap:10px;flex-wrap:wrap}
.detail-thumbs button{width:64px;height:64px;border-radius:10px;overflow:hidden;border:2px solid transparent;cursor:pointer;background:#fff;padding:0;transition:border-color .2s}
.detail-thumbs button.active{border-color:var(--navy)}
.detail-thumbs img{width:100%;height:100%;object-fit:cover}
.detail-info{padding:40px;display:flex;flex-direction:column}
.detail-close{position:absolute;top:18px;right:18px;z-index:5;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.9);border:1px solid var(--line);cursor:pointer;font-size:1.2rem;color:var(--navy);display:flex;align-items:center;justify-content:center;transition:.2s;box-shadow:var(--shadow-sm)}
.detail-close:hover{background:var(--navy);color:#fff;transform:rotate(90deg)}
.detail-info .card-sub{font-size:.82rem}
.detail-info h2{font-size:2rem;margin:6px 0 14px}
.detail-info>p{color:var(--muted);margin-bottom:20px}
.detail-price{font-family:var(--font-head);font-weight:700;color:var(--navy);font-size:1.7rem;margin-bottom:22px}
.customizer{background:var(--bg-soft);border-radius:var(--radius-sm);padding:22px;margin-bottom:24px}
.customizer label{font-family:var(--font-head);font-weight:600;font-size:.92rem;color:var(--navy);display:block;margin-bottom:6px}
.customizer .hint{font-size:.82rem;color:var(--muted);margin-bottom:12px}
.customizer input{
  width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:10px;font-family:var(--font-body);
  font-size:1rem;background:#fff;transition:border-color .2s;color:var(--ink)
}
.customizer input:focus{outline:none;border-color:var(--navy)}
.preview-chip{margin-top:14px;font-size:.85rem;color:var(--muted)}
.preview-chip b{display:inline-block;margin-top:6px;background:var(--navy);color:#fff;padding:8px 16px;border-radius:8px;font-family:var(--font-head);letter-spacing:.08em;text-transform:uppercase;font-size:.95rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle}
.detail-order{margin-top:auto}
body.modal-open{overflow:hidden}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.visible{opacity:1;transform:none}

/* ---------- Mobile nav ---------- */
@media(max-width:900px){
  .nav{
    position:fixed;top:0;right:-100%;height:100vh;width:min(300px,80vw);
    background:#fff;flex-direction:column;justify-content:center;gap:26px;
    box-shadow:var(--shadow-lg);transition:right .4s var(--ease);z-index:120;padding:40px
  }
  .nav.open{right:0}
  /* Off-canvas panel is white, so links stay dark regardless of header state */
  .nav a{font-size:1.2rem}
  .site-header .nav a,
  .site-header.scrolled .nav a{color:var(--ink)}
  .site-header .nav a:hover,
  .site-header.scrolled .nav a:hover{color:var(--navy)}
  .menu-toggle{display:block;z-index:130}
  /* When the menu is open the panel sits behind the icon — keep bars dark */
  .site-header .menu-toggle.open span{background:var(--navy)}
  .menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle.open span:nth-child(2){opacity:0}
  .menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}
@media(max-width:1000px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .about-inner{grid-template-columns:1fr;gap:36px}
  .detail{grid-template-columns:1fr}
  .detail-info{padding:30px}
}
@media(max-width:640px){
  .section{padding:70px 0}
  .grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}
  .hero-content{padding-top:110px}
  .footer-inner{flex-direction:column;text-align:center;align-items:center}
  .nav-order-desktop{display:none}
}