/* === Base === */
:root{
  --bg:#ffffff;
  --text:#2b2b2b;
  --muted:#60646c;
  --accent: #6a5acd;           /* slate / lavender */
  --accent-2:#ff7eb3;          /* soft pink */
  --radius:20px;
  --shadow: 0 10px 30px rgba(0,0,0,.07);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background: var(--bg);
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,h2,h3{line-height:1.2;margin:0 0 .6rem}
h1{font-size:clamp(2rem, 4vw + .5rem, 3rem)}
h2{font-size:clamp(1.5rem, 2vw + .6rem, 2rem)}
h3{font-size:1.1rem}
p{margin:.5rem 0 1rem}
small{color:var(--muted)}
.thin{font-weight:600}
.subtitle{font-weight:300; text-transform:lowercase; letter-spacing:.08em}

.container{width:min(1100px, 92%); margin-inline:auto}

.btn{
  display:inline-block;
  padding:.9rem 1.2rem;
  border-radius:999px;
  text-decoration:none;
  box-shadow: var(--shadow);
  border:0;
  font-weight:600;
  transition:transform .15s ease, opacity .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn.cta{background: linear-gradient(135deg, var(--accent), var(--accent-2)); color:#fff}

/* === Header === */
.site-header{
  position:sticky; top:0; z-index:10;
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(8px);
  border-bottom:1px solid rgba(0,0,0,.05);
}
.site-header nav{
  display:flex; align-items:center; gap:1rem; padding:.6rem 0;
}
.brand{font-weight:600; text-decoration:none; color:var(--text)}
.nav{list-style:none; margin:0; padding:0; display:flex; gap:1rem}
.nav a{color:var(--text); text-decoration:none}
.nav-toggle{display:none; font-size:1.4rem; background:none; border:0}

/* === Hero === */
.gradient{
  background: linear-gradient(135deg, rgba(106,90,205,.12), rgba(255,126,179,.12));
}
.hero{padding:3rem 0}
.hero-grid{display:grid; grid-template-columns: 1.2fr .8fr; gap:2rem; align-items:center}
.hero-text .lead{max-width:50ch}
.hero-photo img{width:100%; height:auto; border-radius:var(--radius); box-shadow:var(--shadow)}

/* === Sections === */
.section{padding:3rem 0}
.section.soft{background:#faf7fb}
.two-col{display:grid; grid-template-columns: 1fr 1fr; gap:2rem; align-items:center}
.badges{display:flex; gap:.6rem; padding:0; margin:1rem 0 0; list-style:none; flex-wrap:wrap}
.badges li{background:#f1eef7; padding:.4rem .7rem; border-radius:999px; font-size:.9rem}

.cards{display:grid; grid-template-columns: repeat(3, 1fr); gap:1rem}
.card{
  background:#fff; border-radius:var(--radius);
  box-shadow:var(--shadow); padding:1rem;
}
.card img{width:100%; height:auto; border-radius:calc(var(--radius) - 6px)}

/* === Certificates === */
.cert-list{display:grid; grid-template-columns: 1fr; gap:.9rem; list-style:none; padding:0; margin:1rem 0 0}
.cert-list li{display:flex; gap:.9rem; align-items:center; background:#fff; border-radius:var(--radius); padding:.8rem 1rem; box-shadow:var(--shadow)}
.cert-list img{width:48px; height:48px}

/* === Gallery === */
.gallery{display:grid; grid-template-columns: repeat(4, 1fr); gap:.8rem}
.gallery img{width:100%; height:auto; border-radius:var(--radius); box-shadow:var(--shadow)}

/* === Video === */
.video-wrapper{overflow:hidden; aspect-ratio:16/9; padding:0}
.video-wrapper iframe{width:100%; height:100%; border:0; display:block; border-radius:calc(var(--radius) - 6px)}

/* === Contact & Social === */
.contact{display:grid; grid-template-columns: 1fr 1fr; gap:2rem; align-items:start}
.contact .social-block .social{
  display:inline-flex; align-items:center; gap:.5rem; text-decoration:none; color:var(--text);
  padding:.5rem .8rem; border-radius:999px; background:#fff; box-shadow:var(--shadow);
}
.social-block img{width:22px; height:22px}
.mini-grid{display:grid; grid-template-columns: repeat(4, 1fr); gap:.5rem; margin-top:1rem}
.mini-grid img{width:100%; border-radius:10px; box-shadow:var(--shadow)}

/* === Footer === */
.site-footer{padding:2rem 0; text-align:center; color:var(--muted)}

/* === Page split for B5 print === */
.page{display:block}
.page-front{}
.page-back{}
@media print{
  @page{ size: B5; margin: 10mm }
  body{ background:#fff }
  .site-header, .site-footer, .nav, .nav-toggle { display:none !important }
  .page{ page-break-after: always }
  .page:last-of-type{ page-break-after: auto }
  .btn{ box-shadow:none; background:#000; color:#fff }
  .gradient{ background: none }
  /* Tweak sizes for print density */
  .section{ padding: 12mm 0 }
}

/* === Responsive === */
@media (max-width: 900px){
  .hero-grid, .two-col, .contact{grid-template-columns: 1fr}
  .cards{grid-template-columns: 1fr 1fr}
  .gallery{grid-template-columns: 1fr 1fr}
}
@media (max-width: 640px){
  .cards{grid-template-columns: 1fr}
  .gallery{grid-template-columns: 1fr}
  .nav{display:none}
  .nav-toggle{display:block; margin-left:auto}
}