/* ═══════════════════════════════════════════════════════════════
   JH|AI — Ho Nhat Hoang · AI Creative Developer
   Theme: Black & Pink · Photographer × AI Artisan
   "Standing on the Wave"
   ═══════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500;1,700&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

:root {
  --black: #0a0a0a;
  --black-light: #121212;
  --black-card: #161616;
  --black-hover: #1e1e1e;
  --pink: #e8a0b4;
  --pink-vivid: #f2729e;
  --pink-soft: #f5c6d6;
  --pink-dim: #e8a0b412;
  --pink-glow: #f2729e25;
  --rose: #d4637a;
  --text-on-dark: #ede5df;
  --text-muted: #9a9090;
  --text-dim: #5a5252;
  --border: #222;
  --border-hover: #3a2e35;
  --t: 0.4s cubic-bezier(.25,.46,.45,.94);
  --t-fast: 0.2s ease;
  --r: 16px;
  --r-sm: 10px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--border) var(--black)}
body{font-family:'DM Sans',sans-serif;background:var(--black);color:var(--text-on-dark);overflow-x:hidden;line-height:1.75;-webkit-font-smoothing:antialiased}
::selection{background:var(--pink);color:var(--black)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:inherit}
ul{list-style:none}

/* grain */
body::after{content:'';position:fixed;inset:0;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='.02'/%3E%3C/svg%3E");pointer-events:none;z-index:9999}

/* cursor glow */
#cursorGlow{position:fixed;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(232,160,180,.05),transparent 70%);pointer-events:none;z-index:1;transform:translate(-50%,-50%);opacity:0;transition:opacity .4s}

/* ─── NAV ─── */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 48px;height:68px;display:flex;align-items:center;justify-content:space-between;background:rgba(10,10,10,.88);backdrop-filter:blur(24px) saturate(1.6);border-bottom:1px solid var(--border);transition:var(--t)}
.nav.scrolled{height:56px}

.nav-logo{display:flex;align-items:center;gap:0;text-decoration:none}
.nav-logo-svg{height:30px;width:auto}

.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{font-size:.82rem;font-weight:500;padding:8px 16px;border-radius:8px;color:var(--text-muted);transition:var(--t-fast);position:relative}
.nav-menu a:hover,.nav-menu a.active{color:var(--pink);background:var(--pink-dim)}
.nav-menu a.active::after{content:'';position:absolute;bottom:3px;left:50%;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--pink-vivid)}
.nav-cta{background:var(--pink)!important;color:var(--black)!important;font-weight:600!important;margin-left:6px}
.nav-cta:hover{background:var(--pink-vivid)!important;box-shadow:0 0 24px var(--pink-glow)}

.nav-mobile-btn{display:none;background:none;border:none;color:var(--text-on-dark);font-size:1.4rem;padding:8px}
@media(max-width:860px){
  .nav{padding:0 20px}
  .nav-mobile-btn{display:block}
  .nav-menu{display:none;position:fixed;top:68px;left:0;right:0;bottom:0;background:rgba(10,10,10,.97);backdrop-filter:blur(40px);flex-direction:column;padding:32px 20px;gap:2px}
  .nav-menu.open{display:flex}
  .nav-menu a{font-size:1.05rem;padding:14px 20px;width:100%}
}

.page{padding-top:68px}
.container{max-width:1160px;margin:0 auto;padding:0 40px}
@media(max-width:600px){.container{padding:0 20px}}
.sec-pad{padding:100px 0}

/* section headers */
.sec-label{font-family:'JetBrains Mono',monospace;font-size:.67rem;letter-spacing:3.5px;text-transform:uppercase;color:var(--pink);margin-bottom:14px;display:inline-flex;align-items:center;gap:12px}
.sec-label::before{content:'';width:28px;height:1px;background:linear-gradient(90deg,var(--pink-vivid),var(--pink))}
.sec-title{font-family:'Playfair Display',serif;font-size:clamp(2rem,4.5vw,3rem);font-weight:700;letter-spacing:-1px;line-height:1.15;margin-bottom:18px}
.sec-title em{font-style:italic;color:var(--pink)}
.sec-desc{font-size:1.02rem;color:var(--text-muted);max-width:560px;line-height:1.8}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-size:.84rem;font-weight:600;padding:13px 28px;border-radius:var(--r-sm);border:1px solid transparent;transition:var(--t);letter-spacing:.3px;cursor:pointer;text-decoration:none;font-family:'DM Sans',sans-serif}
.btn-pink{background:var(--pink);color:var(--black);border-color:var(--pink)}
.btn-pink:hover{background:var(--pink-vivid);border-color:var(--pink-vivid);transform:translateY(-2px);box-shadow:0 8px 40px rgba(232,160,180,.12)}
.btn-outline{background:transparent;color:var(--text-on-dark);border-color:var(--border)}
.btn-outline:hover{border-color:var(--pink);color:var(--pink);transform:translateY(-2px)}
.btn-sm{font-size:.78rem;padding:10px 20px}

/* cards */
.card{background:var(--black-card);border:1px solid var(--border);border-radius:var(--r);transition:var(--t);position:relative;overflow:hidden}
.card:hover{border-color:var(--border-hover);transform:translateY(-5px);box-shadow:0 12px 40px rgba(0,0,0,.3),0 0 50px var(--pink-dim)}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--pink),var(--pink-vivid),var(--rose));opacity:0;transition:var(--t)}
.card:hover::before{opacity:1}

.tag{font-family:'JetBrains Mono',monospace;font-size:.64rem;padding:5px 12px;border-radius:6px;background:var(--pink-dim);color:var(--pink);letter-spacing:.5px;display:inline-block}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(35px);transition:opacity .8s ease,transform .8s ease}
.reveal.vis{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:.1s}.reveal-d2{transition-delay:.2s}.reveal-d3{transition-delay:.3s}.reveal-d4{transition-delay:.4s}

/* footer */
.footer{border-top:1px solid var(--border);padding:44px 0}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.footer-copy{font-size:.78rem;color:var(--text-dim)}
.footer-copy .pink{color:var(--pink)}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:.78rem;color:var(--text-muted);transition:var(--t-fast)}
.footer-links a:hover{color:var(--pink)}
@media(max-width:600px){.footer-inner{flex-direction:column;text-align:center}}

/* back to top */
.back-top{position:fixed;bottom:28px;right:28px;width:42px;height:42px;border-radius:50%;background:var(--black-card);border:1px solid var(--border);color:var(--pink);display:flex;align-items:center;justify-content:center;font-size:1rem;z-index:999;opacity:0;pointer-events:none;transition:var(--t);text-decoration:none}
.back-top.show{opacity:1;pointer-events:all}
.back-top:hover{background:var(--pink);color:var(--black);border-color:var(--pink);transform:translateY(-3px)}

.text-pink{color:var(--pink)}.text-muted{color:var(--text-muted)}.mb-50{margin-bottom:50px}.mb-40{margin-bottom:40px}