/* ============ Sevenko Apps — styles ============ */
:root{
  --bg:#070b14;
  --bg-alt:#0b1120;
  --card:#0f172a;
  --border:rgba(255,255,255,.08);
  --text:#e2e8f0;
  --muted:#94a3b8;
  --cyan:#22d3ee;
  --green:#34d399;
  --grad:linear-gradient(90deg,#22d3ee,#34d399);
  --radius:16px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(7,11,20,.8);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.3s}
.nav.scrolled{background:rgba(7,11,20,.95);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--grad);color:#04121a;font-size:.8rem;font-weight:800}
.nav-links{display:flex;align-items:center;gap:28px;font-size:.95rem}
.nav-links a:not(.btn){color:var(--muted);transition:.2s}
.nav-links a:not(.btn):hover{color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:12px;font-weight:600;font-size:.95rem;cursor:pointer;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--grad);color:#04121a}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(34,211,238,.3)}
.btn-ghost{border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-block{width:100%}

/* Hero */
.hero{position:relative;padding:170px 0 90px;overflow:hidden}
.hero-glow{position:absolute;top:-120px;right:-120px;width:520px;height:520px;background:radial-gradient(circle,rgba(34,211,238,.18),transparent 65%);filter:blur(20px);pointer-events:none}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px}
.hero h1{font-family:'Space Grotesk',sans-serif;font-size:clamp(2.4rem,6vw,4rem);line-height:1.08;font-weight:700;margin-bottom:20px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.15rem;color:var(--muted);max-width:620px;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:70px}
.hero-stats{display:flex;gap:48px;flex-wrap:wrap}
.stat strong{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.9rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:.9rem}

/* Sections */
.section{padding:100px 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;margin-bottom:14px}
.section-sub{color:var(--muted);max-width:560px;margin-bottom:48px}

/* Cards / grid */
.grid{display:grid;gap:24px}
.cards{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:.3s}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4);box-shadow:var(--shadow)}
.card-icon{font-size:1.7rem;margin-bottom:16px}
.card h3{margin-bottom:10px;font-family:'Space Grotesk',sans-serif;font-size:1.2rem}
.card p{color:var(--muted);font-size:.95rem}

/* Portfolio */
.portfolio{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.work-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s}
.work-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4);box-shadow:var(--shadow)}
.work-thumb{height:150px;overflow:hidden;position:relative;background:#0d1b2a}
.work-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.work-placeholder{font-family:'Space Grotesk',sans-serif;font-size:2.6rem;font-weight:700;color:rgba(255,255,255,.85)}
.work-body{padding:24px}
.work-body h3{margin-bottom:8px;font-family:'Space Grotesk',sans-serif}
.work-body p{color:var(--muted);font-size:.92rem;margin-bottom:16px}
.tag{display:inline-block;font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:999px;background:rgba(34,211,238,.12);color:var(--cyan);margin-right:6px}

/* About */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:start}
.about-text p{color:var(--muted);margin-bottom:16px}
.about-values{display:flex;flex-direction:column;gap:20px}
.value{display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--border);padding:20px;border-radius:var(--radius)}
.v-num{font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--cyan);font-size:1.1rem}
.value strong{display:block;margin-bottom:4px}
.value p{color:var(--muted);font-size:.9rem}

/* Contact */
.contact-form{max-width:640px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:8px;color:var(--muted)}
.field input,.field textarea{width:100%;padding:14px 16px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--text);font:inherit;transition:.2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan)}
.form-note{margin-top:14px;font-size:.85rem;color:var(--muted);text-align:center}
.form-note.ok{color:var(--green)}
.form-success{margin-top:24px;padding:28px 24px;border-radius:16px;background:var(--card);border:1px solid rgba(52,211,153,.35);text-align:center}
.success-check{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;background:rgba(52,211,153,.15);color:var(--green);font-size:2rem;font-weight:700;display:grid;place-items:center}
.form-success h3{margin-bottom:6px;font-family:'Space Grotesk',sans-serif}
.form-success p{color:var(--muted);font-size:.92rem;margin-bottom:18px}
.form-success .btn{margin:0 auto}

/* Footer */
.footer{border-top:1px solid var(--border);padding:56px 0 24px;background:var(--bg-alt)}
.footer-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:40px}
.footer-sub{color:var(--muted);font-size:.9rem;margin-top:6px}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.footer-links a{color:var(--muted);font-size:.9rem;transition:.2s}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:20px;color:var(--muted);font-size:.82rem}

/* Responsive */
@media(max-width:760px){
  .nav-inner{height:60px}
  .nav-links{position:fixed;inset:0;top:0;flex-direction:column;justify-content:center;gap:26px;background:rgba(7,11,20,.98);transform:translateY(-100%);transition:.35s;z-index:99}
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:flex;z-index:101}
  .nav-cta{display:none}
  .nav-links .nav-cta{display:inline-block}
  .about-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero{padding:140px 0 70px}
  .section{padding:70px 0}
}