/* ═══════════════════════════════════════════════════════
   CALCULIA — Shared Stylesheet
   Edit colours/fonts here and it applies to ALL pages
═══════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,800;1,400&family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&display=swap');

/* ── VARIABLES ── */
:root {
  --navy:     #0a1628;
  --navy-mid: #112240;
  --navy-light:#1e3a5f;
  --gold:     #c9a84c;
  --gold-light:#e8c76d;
  --text:     #e8e4dc;
  --text-muted:#8a9ab5;
  --white:    #ffffff;
  --border:   rgba(201,168,76,0.2);
  --radius:   4px;
  --transition: 0.25s ease;
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:'DM Sans',sans-serif; background:var(--navy); color:var(--text); overflow-x:hidden; }
a { cursor:pointer; text-decoration:none; }
img { max-width:100%; display:block; }

/* ── CURSOR ── */
.cursor { position:fixed; width:10px; height:10px; background:var(--gold); border-radius:50%; pointer-events:none; z-index:9999; transform:translate(-50%,-50%); mix-blend-mode:difference; transition:width .15s,height .15s; }
.cursor-ring { position:fixed; width:36px; height:36px; border:1.5px solid var(--gold); border-radius:50%; pointer-events:none; z-index:9998; transform:translate(-50%,-50%); transition:all .2s ease; opacity:.5; }

/* ── NAV ── */
nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:1.1rem 4rem;
  display:flex; justify-content:space-between; align-items:center;
  background:rgba(10,22,40,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-logo { font-family:'Playfair Display',serif; font-size:1.1rem; color:var(--gold); }
.nav-links { display:flex; gap:1.8rem; list-style:none; align-items:center; }
.nav-links a { color:var(--text-muted); font-size:.78rem; font-weight:500; letter-spacing:.1em; text-transform:uppercase; transition:color var(--transition); padding:.25rem 0; border-bottom:1px solid transparent; }
.nav-links a:hover,
.nav-links a.active { color:var(--gold); border-bottom-color:var(--gold); }
.nav-cta { padding:.5rem 1.3rem; background:transparent; border:1px solid var(--gold); color:var(--gold) !important; font-size:.78rem; font-weight:500; letter-spacing:.1em; text-transform:uppercase; transition:all var(--transition); border-bottom:1px solid var(--gold) !important; }
.nav-cta:hover { background:var(--gold); color:var(--navy) !important; }
.hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; }
.hamburger span { display:block; width:24px; height:2px; background:var(--gold); transition:all .3s; }

/* ── PAGE HERO BANNER (inner pages) ── */
.page-banner {
  padding: 7rem 4rem 3.5rem;
  background: var(--navy-mid);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(201,168,76,.06) 0%, transparent 70%),
              radial-gradient(ellipse 40% 60% at 20% 20%, rgba(74,158,255,.05) 0%, transparent 60%);
}
.page-banner-grid {
  position:absolute; inset:0;
  background-image: linear-gradient(rgba(201,168,76,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(201,168,76,.03) 1px, transparent 1px);
  background-size:60px 60px;
}
.page-banner-inner { position:relative; z-index:1; max-width:700px; }
.page-banner .breadcrumb { display:flex; align-items:center; gap:.6rem; font-family:'DM Mono',monospace; font-size:.7rem; color:var(--text-muted); letter-spacing:.1em; text-transform:uppercase; margin-bottom:1.2rem; }
.page-banner .breadcrumb a { color:var(--gold); }
.page-banner .breadcrumb span { color:var(--text-muted); }
.page-banner h1 { font-family:'Playfair Display',serif; font-size:clamp(2rem,4vw,3.2rem); font-weight:800; color:var(--white); line-height:1.1; margin-bottom:.8rem; }
.page-banner p { font-size:1rem; color:var(--text-muted); line-height:1.75; max-width:560px; }

/* ── SECTIONS SHARED ── */
section { position:relative; padding:5rem 4rem; }
.section-label { display:inline-flex; align-items:center; gap:.8rem; font-family:'DM Mono',monospace; font-size:.7rem; color:var(--gold); letter-spacing:.18em; text-transform:uppercase; margin-bottom:.8rem; }
.section-label::before,.section-label::after { content:''; width:28px; height:1px; background:var(--gold); }
h2 { font-family:'Playfair Display',serif; font-size:clamp(1.8rem,3.5vw,2.6rem); font-weight:700; color:var(--white); margin-bottom:.5rem; }
.section-sub { color:var(--text-muted); font-size:.95rem; max-width:600px; line-height:1.75; margin-bottom:3rem; }

/* ── BUTTONS ── */
.btn-gold { display:inline-block; padding:.85rem 2rem; background:var(--gold); color:var(--navy); font-family:'DM Sans',sans-serif; font-size:.85rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; border:none; transition:all var(--transition); clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px)); }
.btn-gold:hover { background:var(--gold-light); transform:translateY(-2px); }
.btn-outline { display:inline-block; padding:.85rem 2rem; background:transparent; color:var(--text); font-family:'DM Sans',sans-serif; font-size:.85rem; font-weight:500; letter-spacing:.06em; text-transform:uppercase; border:1px solid rgba(255,255,255,.2); transition:all var(--transition); }
.btn-outline:hover { border-color:var(--gold); color:var(--gold); }

/* ── CARDS ── */
.card { background:var(--navy-mid); border:1px solid var(--border); }
.card:hover { border-color:rgba(201,168,76,.4); }

/* ── TAGS ── */
.tags { display:flex; flex-wrap:wrap; gap:.4rem; margin-top:.7rem; }
.tag { padding:.22rem .65rem; background:rgba(201,168,76,.08); border:1px solid var(--border); font-size:.68rem; color:var(--gold); font-family:'DM Mono',monospace; }

/* ── REVEAL ANIMATIONS ── */
.reveal { opacity:0; transform:translateY(28px); transition:opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity:1; transform:none; }
.rd1 { transition-delay:.1s; }
.rd2 { transition-delay:.2s; }
.rd3 { transition-delay:.3s; }

/* ── FOOTER ── */
footer { background:var(--navy-mid); border-top:1px solid var(--border); padding:4rem; }
.footer-grid { display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:4rem; margin-bottom:3rem; }
.footer-brand .logo { font-family:'Playfair Display',serif; font-size:1.3rem; color:var(--gold); margin-bottom:1rem; display:block; }
.footer-brand p { font-size:.85rem; color:var(--text-muted); line-height:1.75; max-width:280px; }
.footer-col h4 { font-family:'DM Mono',monospace; font-size:.72rem; color:var(--gold); letter-spacing:.15em; text-transform:uppercase; margin-bottom:1.2rem; }
.footer-col ul { list-style:none; display:flex; flex-direction:column; gap:.7rem; }
.footer-col ul a { font-size:.85rem; color:var(--text-muted); transition:color var(--transition); }
.footer-col ul a:hover { color:var(--gold); }
.social-links { display:flex; gap:1rem; margin-top:1.5rem; }
.social-link { width:38px; height:38px; border:1px solid var(--border); display:flex; align-items:center; justify-content:center; color:var(--text-muted); font-size:.9rem; transition:all var(--transition); }
.social-link:hover { border-color:var(--gold); color:var(--gold); }
.footer-bottom { padding-top:2rem; border-top:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; }
.footer-bottom p { font-size:.8rem; color:var(--text-muted); }
.footer-bottom span { font-size:.8rem; color:var(--gold); font-family:'DM Mono',monospace; }

/* ── SCROLL TO TOP ── */
#scrollTop { position:fixed; bottom:2rem; right:2rem; width:44px; height:44px; background:var(--gold); color:var(--navy); border:none; font-size:1.2rem; font-weight:700; cursor:pointer; opacity:0; transition:opacity .3s; z-index:200; clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px)); display:flex; align-items:center; justify-content:center; pointer-events:none; }

/* ── ABOUT PAGE ── */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:start; }
.about-photo-wrap { position:relative; }
.about-photo { width:100%; border-radius:var(--radius); border:2px solid rgba(201,168,76,.35); box-shadow:0 30px 80px rgba(0,0,0,.5); object-fit:cover; }
.about-photo-badge { position:absolute; bottom:-16px; left:50%; transform:translateX(-50%); background:var(--navy-mid); border:1px solid var(--border); padding:.6rem 1.4rem; white-space:nowrap; text-align:center; }
.about-photo-badge span { font-family:'DM Mono',monospace; font-size:.65rem; color:var(--gold); letter-spacing:.15em; text-transform:uppercase; }
.about-text p { color:var(--text-muted); line-height:1.85; font-size:.96rem; margin-bottom:1.2rem; }
.about-text p strong { color:var(--text); }
.about-text h3 { font-family:'Playfair Display',serif; font-size:1.3rem; color:var(--white); margin:2rem 0 1rem; }
.pillars { display:flex; flex-direction:column; gap:1rem; }
.pillar { padding:1.4rem; background:var(--navy-mid); border:1px solid var(--border); border-left:3px solid var(--gold); transition:background var(--transition); }
.pillar:hover { background:rgba(201,168,76,.05); }
.pillar-title { font-size:.9rem; font-weight:600; color:var(--white); margin-bottom:.35rem; }
.pillar-text { font-size:.82rem; color:var(--text-muted); line-height:1.6; }

/* ── ACHIEVEMENTS PAGE ── */
.ach-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.8rem; }
.ach-card { padding:2rem; background:var(--navy-mid); border:1px solid var(--border); position:relative; overflow:hidden; transition:transform .3s,border-color .3s; }
.ach-card:hover { transform:translateY(-4px); border-color:rgba(201,168,76,.5); }
.ach-card::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; background:linear-gradient(to right,var(--gold),transparent); }
.ach-icon { font-size:2.2rem; margin-bottom:1rem; }
.ach-title { font-size:.95rem; font-weight:600; color:var(--white); margin-bottom:.5rem; }
.ach-text { font-size:.83rem; color:var(--text-muted); line-height:1.65; }

/* ── CERTIFICATIONS PAGE ── */
.cert-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; }
.cert-card { padding:1.8rem; background:var(--navy); border:1px solid var(--border); display:flex; gap:1.2rem; align-items:flex-start; transition:border-color var(--transition),transform .3s; }
.cert-card:hover { border-color:rgba(201,168,76,.4); transform:translateY(-3px); }
.cert-icon { font-size:1.8rem; flex-shrink:0; }
.cert-name { font-size:.9rem; font-weight:600; color:var(--white); margin-bottom:.3rem; }
.cert-issuer { font-size:.78rem; color:var(--gold); font-family:'DM Mono',monospace; letter-spacing:.06em; margin-bottom:.3rem; }
.cert-year { font-size:.75rem; color:var(--text-muted); }

/* ── PROJECTS PAGE ── */
.projects-grid { display:grid; grid-template-columns:1fr 1fr; gap:2rem; }
.proj-card { background:var(--navy-mid); border:1px solid var(--border); padding:2.5rem; position:relative; overflow:hidden; transition:transform .3s,box-shadow .3s; }
.proj-card:hover { transform:translateY(-5px); box-shadow:0 25px 60px rgba(0,0,0,.4); }
.proj-card.featured { grid-column:span 2; display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:center; border-color:rgba(201,168,76,.4); background:linear-gradient(135deg,var(--navy-mid),var(--navy-light)); }
.proj-card::after { content:''; position:absolute; top:0; right:0; width:120px; height:120px; background:radial-gradient(circle at top right,rgba(201,168,76,.1),transparent 70%); }
.proj-label { font-family:'DM Mono',monospace; font-size:.68rem; color:var(--gold); letter-spacing:.15em; text-transform:uppercase; margin-bottom:.7rem; }
.proj-title { font-family:'Playfair Display',serif; font-size:1.5rem; font-weight:700; color:var(--white); margin-bottom:.8rem; }
.proj-desc { font-size:.88rem; color:var(--text-muted); line-height:1.75; margin-bottom:1.5rem; }
.proj-link { display:inline-flex; align-items:center; gap:.5rem; font-size:.82rem; color:var(--gold); font-weight:500; transition:gap var(--transition); }
.proj-link:hover { gap:1rem; }
.proj-visual { background:var(--navy); border:1px solid var(--border); border-radius:var(--radius); height:200px; display:flex; align-items:center; justify-content:center; font-size:5rem; position:relative; overflow:hidden; }
.proj-visual::after { content:''; position:absolute; inset:0; background:linear-gradient(135deg,rgba(74,158,255,.05),rgba(201,168,76,.07)); }

/* ── YOUTUBE PAGE ── */
.yt-playlist-grid { display:grid; grid-template-columns:1fr 1fr; gap:2rem; margin-bottom:3rem; }
.yt-playlist-card { background:var(--navy-mid); border:1px solid rgba(201,168,76,.35); overflow:hidden; transition:transform .3s,box-shadow .3s; cursor:pointer; }
.yt-playlist-card:hover { transform:translateY(-6px); box-shadow:0 25px 60px rgba(0,0,0,.5); }
.yt-thumb-wrap { position:relative; aspect-ratio:16/9; display:flex; align-items:center; justify-content:center; overflow:hidden; }
.yt-year-bg { font-family:'Playfair Display',serif; font-size:5rem; font-weight:800; color:rgba(201,168,76,.15); line-height:1; user-select:none; }
.yt-play-btn { position:absolute; width:60px; height:60px; background:rgba(255,0,0,.88); border-radius:50%; display:flex; align-items:center; justify-content:center; box-shadow:0 4px 20px rgba(255,0,0,.4); transition:transform var(--transition); }
.yt-playlist-card:hover .yt-play-btn { transform:scale(1.12); }
.yt-play-icon { width:0; height:0; border-style:solid; border-width:10px 0 10px 20px; border-color:transparent transparent transparent white; margin-left:5px; }
.yt-badge { position:absolute; font-family:'DM Mono',monospace; font-size:.62rem; letter-spacing:.12em; text-transform:uppercase; z-index:2; }
.yt-badge-subject { top:.8rem; left:.8rem; color:var(--gold); background:rgba(10,22,40,.85); padding:.2rem .6rem; }
.yt-badge-type { top:.8rem; right:.8rem; color:#fff; background:rgba(255,0,0,.8); padding:.2rem .6rem; }
.yt-card-body { padding:1.8rem; }
.yt-card-label { font-family:'DM Mono',monospace; font-size:.68rem; color:var(--gold); letter-spacing:.12em; text-transform:uppercase; margin-bottom:.6rem; }
.yt-card-title { font-family:'Playfair Display',serif; font-size:1.2rem; font-weight:700; color:var(--white); margin-bottom:.7rem; line-height:1.3; }
.yt-card-desc { font-size:.85rem; color:var(--text-muted); line-height:1.65; margin-bottom:1.4rem; }
.yt-watch-btn { display:inline-flex; align-items:center; gap:.5rem; font-size:.82rem; color:var(--gold); font-weight:500; border:1px solid var(--border); padding:.55rem 1.1rem; transition:all var(--transition); }
.yt-watch-btn:hover { border-color:var(--gold); background:rgba(201,168,76,.08); }
.yt-coming-soon { background:linear-gradient(135deg,var(--navy-mid),var(--navy-light)); border:1px solid rgba(201,168,76,.3); padding:2rem 2.5rem; display:flex; align-items:center; justify-content:space-between; gap:2rem; flex-wrap:wrap; }

/* ── BOOKING PAGE ── */
.booking-layout { display:grid; grid-template-columns:1fr 1.2fr; gap:5rem; align-items:start; }
.booking-info p { font-size:.95rem; color:var(--text-muted); line-height:1.8; margin-bottom:1.8rem; }
.booking-features { display:flex; flex-direction:column; gap:1rem; margin-bottom:2rem; }
.bf-item { display:flex; align-items:flex-start; gap:1rem; }
.bf-icon { width:36px; height:36px; background:rgba(201,168,76,.1); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; font-size:1rem; flex-shrink:0; }
.bf-text strong { display:block; font-size:.88rem; color:var(--white); margin-bottom:.2rem; }
.bf-text span { font-size:.8rem; color:var(--text-muted); }
.booking-form-wrap { background:var(--navy-mid); border:1px solid var(--border); padding:2.5rem; }
.booking-form-wrap h3 { font-family:'Playfair Display',serif; font-size:1.4rem; color:var(--white); margin-bottom:1.8rem; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-group { margin-bottom:1.2rem; }
.form-group label { display:block; font-size:.72rem; color:var(--gold); font-family:'DM Mono',monospace; letter-spacing:.1em; text-transform:uppercase; margin-bottom:.5rem; }
.form-group input,
.form-group select,
.form-group textarea { width:100%; padding:.75rem 1rem; background:var(--navy); border:1px solid var(--border); color:var(--text); font-family:'DM Sans',sans-serif; font-size:.9rem; transition:border-color var(--transition); outline:none; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color:var(--gold); }
.form-group select option { background:var(--navy-mid); }
.form-group textarea { resize:vertical; min-height:100px; }
.form-submit { width:100%; padding:1rem; background:var(--gold); color:var(--navy); font-family:'DM Sans',sans-serif; font-size:.9rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; border:none; cursor:pointer; transition:all var(--transition); clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px)); }
.form-submit:hover { background:var(--gold-light); }
#formSuccess { display:none; background:rgba(45,122,45,.15); border:1px solid rgba(45,122,45,.4); padding:1.5rem; margin-bottom:1.5rem; text-align:center; }

/* ── INDEX HOME PAGE ── */
#hero { min-height:100vh; display:grid; grid-template-columns:1.1fr .9fr; align-items:center; padding:8rem 4rem 4rem; position:relative; overflow:hidden; gap:4rem; }
.hero-bg { position:absolute; inset:0; background:radial-gradient(ellipse 70% 60% at 70% 40%,rgba(74,158,255,.07) 0%,transparent 70%),radial-gradient(ellipse 50% 80% at 20% 80%,rgba(201,168,76,.06) 0%,transparent 60%); }
.hero-grid-lines { position:absolute; inset:0; background-image:linear-gradient(rgba(201,168,76,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(201,168,76,.04) 1px,transparent 1px); background-size:60px 60px; }
.hero-left { position:relative; z-index:1; }
.hero-tag { display:inline-flex; align-items:center; gap:.6rem; padding:.4rem 1rem; border:1px solid var(--border); font-size:.72rem; font-family:'DM Mono',monospace; color:var(--gold); letter-spacing:.12em; text-transform:uppercase; margin-bottom:1.8rem; animation:fadeUp .7s .2s ease both; }
.hero-h1 { font-family:'Playfair Display',serif; font-size:clamp(2.5rem,5vw,4.2rem); font-weight:800; line-height:1.06; color:var(--white); margin-bottom:.3rem; animation:fadeUp .8s .35s ease both; }
.hero-h1 em { color:var(--gold); font-style:normal; display:block; }
.hero-sub { font-family:'Playfair Display',serif; font-size:1.1rem; font-style:italic; color:var(--text-muted); margin-bottom:1.8rem; animation:fadeUp .8s .5s ease both; }
.hero-desc { font-size:.97rem; line-height:1.8; color:var(--text-muted); max-width:500px; margin-bottom:2.5rem; animation:fadeUp .8s .65s ease both; }
.hero-desc strong { color:var(--text); }
.hero-actions { display:flex; gap:1rem; flex-wrap:wrap; animation:fadeUp .8s .8s ease both; }
.hero-right { position:relative; z-index:1; display:flex; justify-content:center; align-items:flex-start; animation:fadeIn 1s .6s ease both; }
.hero-photo-wrap { position:relative; }
.hero-photo { width:300px; height:370px; object-fit:cover; object-position:top; border-radius:var(--radius); border:2px solid rgba(201,168,76,.4); box-shadow:0 30px 80px rgba(0,0,0,.6); }
.hero-photo-label { position:absolute; bottom:-14px; left:50%; transform:translateX(-50%); background:var(--navy-mid); border:1px solid rgba(201,168,76,.4); padding:.55rem 1.3rem; white-space:nowrap; text-align:center; }
.hero-photo-label span { font-family:'DM Mono',monospace; font-size:.65rem; color:var(--gold); letter-spacing:.15em; text-transform:uppercase; }

/* Stats band */
#stats-band { padding:3rem 4rem; background:var(--navy-mid); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.stats-row { display:grid; grid-template-columns:repeat(4,1fr); gap:2rem; }
.stat-item { text-align:center; }
.stat-big { font-family:'Playfair Display',serif; font-size:2.8rem; font-weight:800; color:var(--gold); line-height:1; }
.stat-desc { font-size:.8rem; color:var(--text-muted); margin-top:.5rem; }

/* Nav cards grid on home */
.home-nav-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; padding:5rem 4rem; background:var(--navy); }
.home-nav-card { background:var(--navy-mid); border:1px solid var(--border); padding:2rem; display:flex; flex-direction:column; gap:1rem; position:relative; overflow:hidden; transition:transform .3s,border-color .3s,box-shadow .3s; }
.home-nav-card:hover { transform:translateY(-5px); border-color:rgba(201,168,76,.5); box-shadow:0 20px 50px rgba(0,0,0,.4); }
.home-nav-card::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; background:linear-gradient(to right,var(--gold),transparent); }
.home-nav-card::after { content:''; position:absolute; top:0; right:0; width:80px; height:80px; background:radial-gradient(circle at top right,rgba(201,168,76,.1),transparent 70%); }
.hnc-icon { font-size:2rem; }
.hnc-title { font-family:'Playfair Display',serif; font-size:1.2rem; font-weight:700; color:var(--white); }
.hnc-desc { font-size:.83rem; color:var(--text-muted); line-height:1.6; flex:1; }
.hnc-link { display:inline-flex; align-items:center; gap:.4rem; font-size:.8rem; color:var(--gold); font-weight:500; transition:gap var(--transition); margin-top:auto; }
.hnc-link:hover { gap:.9rem; }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn  { from { opacity:0; } to { opacity:1; } }

/* ══════════ RESPONSIVE ══════════ */
@media (max-width:1100px) {
  nav,section,#stats-band,footer,.page-banner,.home-nav-grid { padding-left:2.5rem; padding-right:2.5rem; }
  #hero { padding-left:2.5rem; padding-right:2.5rem; }
  .about-grid,.booking-layout { gap:3rem; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:900px) {
  .ach-grid,.cert-grid { grid-template-columns:1fr 1fr; }
  .home-nav-grid { grid-template-columns:1fr 1fr; }
  .proj-card.featured { grid-column:span 1; grid-template-columns:1fr; }
  .projects-grid { grid-template-columns:1fr; }
  .yt-playlist-grid { grid-template-columns:1fr; }
  .about-grid,.booking-layout { grid-template-columns:1fr; }
  .hero-right { display:none; }
  #hero { grid-template-columns:1fr; padding-top:7rem; }
  .stats-row { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .nav-links { display:none !important; }
  .hamburger { display:flex; }
  .ach-grid,.cert-grid,.home-nav-grid { grid-template-columns:1fr; }
  .form-row { grid-template-columns:1fr; }
  nav { padding:1rem 1.5rem; }
  .footer-grid { grid-template-columns:1fr; gap:2rem; }
  .footer-bottom { flex-direction:column; gap:.8rem; text-align:center; }
  section,.page-banner { padding-left:1.5rem; padding-right:1.5rem; }
  #stats-band { padding-left:1.5rem; padding-right:1.5rem; }
  footer { padding:2.5rem 1.5rem; }
  .home-nav-grid { padding:3rem 1.5rem; }
}
@media (max-width:480px) {
  #hero { padding:6rem 1.2rem 2rem; }
  .hero-actions { flex-direction:column; }
  .btn-gold,.btn-outline { width:100%; text-align:center; justify-content:center; display:flex; }
  .stat-big { font-size:2.2rem; }
  h2 { font-size:1.6rem; }
}