/* =====================================================================
   I-See Music Studio — design system (custom tokens, no build step)
   Dark warm studio theme · bold orange accent · Space Grotesk + Inter
   ===================================================================== */
:root{
  --bg:#161310; --fg:#f7f3ec;
  --surface:#1f1a16; --surface-2:#28221d; --card:#1f1a16;
  --primary:#f17a30; --primary-glow:#ff9b4d; --primary-ink:#161310;
  --muted:#aa9c8d; --border:#38312b; --border-soft:#2b2521;
  --destructive:#d6463a; --success:#46b27d;
  --radius:14px; --radius-sm:10px; --radius-lg:22px;
  --maxw:1180px; --nav-h:68px;
  --shadow-glow:0 20px 60px -20px rgba(241,122,48,.45);
  --shadow-elegant:0 30px 80px -30px rgba(0,0,0,.7);
  --grad:linear-gradient(135deg,var(--primary),var(--primary-glow));
  --font-display:"Space Grotesk",system-ui,-apple-system,sans-serif;
  --font-sans:"Inter",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(ellipse 80% 50% at 50% -8%,rgba(241,122,48,.13),transparent 70%);
  background-attachment:fixed;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.02em;line-height:1.12;margin:0 0 .4em}
h1{font-size:clamp(2.2rem,6vw,4rem);font-weight:700}
h2{font-size:clamp(1.7rem,4vw,2.6rem);font-weight:700}
h3{font-size:clamp(1.2rem,2.5vw,1.5rem);font-weight:600}
p{margin:0 0 1rem}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:clamp(56px,8vw,104px) 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);
  font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--primary)}
.text-gradient{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
.center{text-align:center}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--font-display);font-weight:600;font-size:1rem;cursor:pointer;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;min-height:48px;
  transition:transform .15s ease,box-shadow .25s ease,opacity .2s,background .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);color:var(--primary-ink);box-shadow:var(--shadow-glow)}
.btn-primary:hover{opacity:.92;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--fg)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{width:100%}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);display:flex;align-items:center;
  background:rgba(22,19,16,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-soft)}
.nav .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:700;font-size:1.12rem}
.brand img{width:38px;height:38px;border-radius:9px;object-fit:cover}
.brand .eq{display:inline-flex;align-items:flex-end;gap:2px;height:18px}
.eq span{width:3px;background:var(--primary);border-radius:2px;animation:eq 1s ease-in-out infinite}
.eq span:nth-child(2){animation-delay:.2s}.eq span:nth-child(3){animation-delay:.4s}.eq span:nth-child(4){animation-delay:.1s}
@keyframes eq{0%,100%{height:5px}50%{height:18px}}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:.95rem;color:var(--muted);transition:color .2s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--fg)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-22px;height:2px;background:var(--grad)}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:0;color:var(--fg);cursor:pointer;padding:8px}
.burger svg{width:26px;height:26px}
@media(max-width:880px){
  .nav-links{position:fixed;inset:var(--nav-h) 0 auto 0;flex-direction:column;gap:0;
    background:var(--surface);border-bottom:1px solid var(--border);padding:8px 0;
    transform:translateY(-120%);transition:transform .3s ease;align-items:stretch}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:15px 24px}
  .nav-links a.active::after{display:none}
  .burger{display:block}
  .nav-cta .btn-ghost{display:none}
}

/* ---------- hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,19,16,.35),rgba(22,19,16,.85) 65%,var(--bg))}
.hero-inner{max-width:760px}
.hero h1{margin-bottom:.3em}
.hero .lead{font-size:clamp(1.05rem,2vw,1.3rem);margin-bottom:2rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);border-color:var(--primary)}
.card-pad{padding:24px}
.card img.cover{aspect-ratio:16/10;object-fit:cover;width:100%}
.tag{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  color:var(--primary);background:rgba(241,122,48,.12);padding:4px 10px;border-radius:999px}

/* feature/service tiles */
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.feature .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  background:rgba(241,122,48,.12);color:var(--primary);margin-bottom:16px}
.feature .ico svg{width:24px;height:24px}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery img{aspect-ratio:1;object-fit:cover;border-radius:var(--radius-sm);width:100%}
@media(max-width:700px){.gallery{grid-template-columns:repeat(2,1fr)}}

/* embeds */
.frame{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.frame h3{padding:16px 20px 0}
.frame iframe{width:100%;border:0;display:block}

/* announcements bar */
.annc{background:var(--grad);color:var(--primary-ink)}
.annc .container{display:flex;align-items:center;gap:14px;padding:11px 24px;font-weight:600;font-size:.95rem}
.annc a{text-decoration:underline}

/* ---------- forms ---------- */
.form{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(24px,4vw,40px)}
.field{margin-bottom:18px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px;color:var(--fg)}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--fg);font:inherit;font-size:1rem;padding:13px 15px;min-height:48px;transition:border-color .2s}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(241,122,48,.18)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.note{font-size:.85rem;color:var(--muted)}
.alert{padding:13px 16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:.95rem;display:none}
.alert.show{display:block}
.alert.ok{background:rgba(70,178,125,.15);color:#8fe3b8;border:1px solid rgba(70,178,125,.4)}
.alert.err{background:rgba(214,70,58,.15);color:#f3a59d;border:1px solid rgba(214,70,58,.4)}

/* ---------- blog article ---------- */
.article{max-width:760px;margin:0 auto}
.article .cover{width:100%;aspect-ratio:16/8;object-fit:cover;border-radius:var(--radius);margin:24px 0}
.article .body{white-space:pre-wrap;font-size:1.08rem;color:#e7e0d6;line-height:1.8}
.meta{display:flex;gap:14px;align-items:center;color:var(--muted);font-size:.9rem}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--border-soft);background:var(--surface);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.footer h4{font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.footer a{color:var(--muted);display:block;padding:5px 0;transition:color .2s}
.footer a:hover{color:var(--primary)}
.footer .copy{margin-top:36px;padding-top:20px;border-top:1px solid var(--border-soft);
  color:var(--muted);font-size:.85rem;text-align:center}

/* ---------- ads slider ---------- */
.slider{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.slides{display:flex;transition:transform .5s ease}
.slide{min-width:100%;position:relative}
.slide img{width:100%;aspect-ratio:21/8;object-fit:cover}
.slide .cap{position:absolute;left:0;right:0;bottom:0;padding:24px;
  background:linear-gradient(transparent,rgba(0,0,0,.75));font-family:var(--font-display);font-weight:600;font-size:1.2rem}
.dots{position:absolute;bottom:14px;right:18px;display:flex;gap:7px}
.dots button{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.4);cursor:pointer}
.dots button.active{background:var(--primary);width:22px;border-radius:5px}

/* animations */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.skeleton{background:linear-gradient(90deg,var(--surface),var(--surface-2),var(--surface));
  background-size:200% 100%;animation:sk 1.3s infinite;border-radius:var(--radius-sm);min-height:60px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}