/* Michord — marka mavisi tabanlı landing tasarım sistemi */
:root {
  --bg: #0d1b2a;
  --bg-2: #12243a;
  --surface: #16294077;
  --card: #1a3153;
  --card-2: #1e3a63;
  --accent: #1e88e5;
  --accent-2: #29b6f6;
  --text: #eaf2fb;
  --muted: #8ca6c4;
  --border: #223a5c;
  --radius: 16px;
  --maxw: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Arka plan ışıması */
body::before {
  content: "";
  position: fixed;
  top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(41,182,246,0.14), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* NAV */
nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 24px;
  padding: 14px 24px;
  max-width: var(--maxw); margin: 0 auto;
  backdrop-filter: blur(12px);
}
nav::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(13,27,42,0.72); border-bottom: 1px solid var(--border);
  z-index: -1;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.nav-logo img { width: 30px; height: 30px; border-radius: 8px; }
.nav-logo .mi { color: var(--accent-2); }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; }
.nav-links a { color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-lang { font-size: 13px; font-weight: 700; color: var(--muted); border: 1px solid var(--border); border-radius: 8px; padding: 7px 11px; transition: color .2s, border-color .2s; }
.nav-lang:hover { color: var(--text); border-color: var(--accent); }
.nav-cta {
  padding: 9px 18px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 600; font-size: 14px;
  box-shadow: 0 6px 20px rgba(30,136,229,0.35);
  transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(30,136,229,0.45); }
.hamburger { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; }
.mobile-menu { display: none; flex-direction: column; gap: 14px; padding: 16px 24px 24px;
  background: var(--bg-2); border-bottom: 1px solid var(--border); }
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--muted); font-size: 16px; }

/* Layout */
.wrap { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { position: relative; z-index: 1; }

/* HERO */
.hero { max-width: var(--maxw); margin: 0 auto; padding: 72px 24px 56px; text-align: center; }
.hero-badge {
  display: inline-block; padding: 7px 16px; margin-bottom: 26px;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface); color: var(--accent-2);
  font-size: 13px; font-weight: 600; letter-spacing: .2px;
}
.hero h1 { font-size: clamp(34px, 5.5vw, 60px); line-height: 1.08; letter-spacing: -1px; font-weight: 800; }
.hero h1 span { background: linear-gradient(120deg, var(--accent-2), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-tagline { max-width: 620px; margin: 20px auto 0; font-size: clamp(17px, 2.2vw, 22px); font-weight: 600; color: var(--accent-2); }
.hero p { max-width: 620px; margin: 14px auto 0; font-size: clamp(16px, 2vw, 19px); color: var(--muted); }
.hero-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.btn-primary {
  padding: 14px 30px; border-radius: 12px; font-weight: 700; font-size: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  box-shadow: 0 10px 30px rgba(30,136,229,0.4); transition: transform .2s, box-shadow .2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(30,136,229,0.5); }
.btn-secondary { padding: 14px 30px; border-radius: 12px; font-weight: 600; font-size: 16px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); transition: border-color .2s; }
.btn-secondary:hover { border-color: var(--accent); }
.hero-trust { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 30px; font-size: 13px; color: var(--muted); }
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust span::before { content: "✓"; color: var(--accent-2); font-weight: 700; }

/* Demo / mockup şeridi */
.demo {
  max-width: 900px; margin: 8px auto 0; padding: 0 24px 80px;
}
.demo-card {
  border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  box-shadow: 0 30px 90px rgba(0,0,0,0.5);
  padding: 30px 24px;
}
.staff-line { display: flex; align-items: center; justify-content: center; gap: 4px; height: 120px;
  border-radius: 12px; background: #fbfdff; margin-bottom: 20px; position: relative; }
.staff-line svg { height: 100px; }
.chord-readout { text-align: center; }
.chord-readout .big { font-size: 44px; font-weight: 800; letter-spacing: -1px; }
.chord-readout .big b { color: var(--accent-2); }
.chord-readout .sub { color: var(--muted); font-size: 15px; margin-top: 4px; }
.keys { display: flex; justify-content: center; gap: 2px; margin-top: 22px; height: 74px; }
.key { width: 34px; border-radius: 0 0 5px 5px; background: var(--white-key, #f7fafd); border: 1px solid #cdd9e6; }
.key.on { background: var(--accent-2); border-color: var(--accent); }

/* App window (gerçek uygulama görüntüsü) */
.appwin { max-width: 940px; margin: 8px auto 0; }
.appwin-frame {
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  background: var(--bg-2); box-shadow: 0 40px 100px rgba(0,0,0,0.55);
}
.appwin-bar {
  display: flex; align-items: center; gap: 12px; padding: 11px 16px;
  background: #10233b; border-bottom: 1px solid var(--border);
}
.appwin-dots { display: flex; gap: 7px; }
.appwin-dots i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.appwin-title { font-weight: 700; font-size: 14px; color: var(--muted); }
.appwin-title .mi { color: var(--accent-2); }
.appwin-chips { margin-left: auto; display: flex; gap: 8px; }
.appwin-chips span { font-size: 11px; color: var(--muted); border: 1px solid var(--border); border-radius: 6px; padding: 4px 9px; background: #16294077; }
.appwin-body { display: grid; grid-template-columns: 1.05fr 1fr; gap: 0; }
.appwin-staff { background: #f7fafd; padding: 20px; display: flex; align-items: center; justify-content: center; }
.appwin-staff img { width: 190px; max-width: 60%; }
.appwin-chord { padding: 26px 24px; border-left: 1px solid var(--border); }
.appwin-chord .sym { font-size: 46px; font-weight: 800; letter-spacing: -1.5px; line-height: 1; }
.appwin-chord .sym b { color: var(--accent-2); font-weight: 800; }
.appwin-chord .meta { color: var(--muted); font-size: 14px; margin-top: 8px; }
.appwin-notes { display: flex; gap: 8px; margin-top: 18px; }
.appwin-notes b { width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center; color: #08131f; font-weight: 800; font-size: 15px; }
.appwin-fn { margin-top: 18px; font-size: 13px; color: var(--muted); }
.appwin-fn b { color: var(--text); }
.appwin-piano { padding: 12px 12px 14px; background: #0a1725; }
.appwin-piano img { width: 100%; height: 140px; display: block; }
.appwin-legend { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 12px; font-size: 12px; color: var(--muted); }
.appwin-legend span { display: inline-flex; align-items: center; gap: 6px; }
.appwin-legend i { width: 11px; height: 11px; border-radius: 3px; display: block; }
.appwin-cap { text-align: center; color: var(--muted); font-size: 13px; margin-top: 16px; }
@media (max-width: 680px) {
  .appwin-body { grid-template-columns: 1fr; }
  .appwin-chord { border-left: 0; border-top: 1px solid var(--border); }
  .appwin-chips { display: none; }
}

/* SECTION */
.section { padding: 70px 0; }
.section-label { text-align: center; color: var(--accent-2); font-weight: 700; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; }
.section h2 { text-align: center; font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.5px; margin-top: 12px; }
.section .lead { text-align: center; color: var(--muted); max-width: 620px; margin: 16px auto 0; font-size: 17px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 46px; }
.card {
  padding: 28px 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  transition: transform .25s, border-color .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card .ico { width: 46px; height: 46px; border-radius: 11px; display: grid; place-items: center; font-size: 22px;
  background: linear-gradient(135deg, rgba(30,136,229,.25), rgba(41,182,246,.25)); border: 1px solid var(--border); margin-bottom: 16px; }
.card h3 { font-size: 18px; font-weight: 700; }
.card p { color: var(--muted); font-size: 15px; margin-top: 8px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 46px; counter-reset: step; }
.step { padding: 26px 22px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); }
.step::before { counter-increment: step; content: counter(step); display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 10px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); margin-bottom: 14px; }
.step h3 { font-size: 17px; }
.step p { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* Download */
.download { text-align: center; }
.dl-cards { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }
.dl-card { width: 300px; padding: 32px 26px; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); }
.dl-card .os { font-size: 34px; }
.dl-card h3 { margin: 12px 0 4px; font-size: 20px; }
.dl-card .meta { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.dl-card .btn-primary { display: block; }
.dl-card.soon { opacity: .7; }
.badge-soon { display: inline-block; margin-top: 14px; padding: 8px 16px; border-radius: 10px; border: 1px dashed var(--border); color: var(--muted); font-size: 14px; }
.pricing { margin-top: 40px; text-align: center; }
.pricing-lead { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.price-pills { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.price-pill { padding: 12px 22px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); font-size: 16px; color: var(--text); }
.price-pill b { font-size: 20px; }
.price-pill em { color: var(--accent-2); font-style: normal; font-size: 13px; }
.price-pill.best { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.pricing-note { color: var(--muted); font-size: 13px; margin-top: 14px; }

/* Yasal sayfalar */
.legal { max-width: 780px; margin: 0 auto; padding: 40px 24px 90px; position: relative; z-index: 1; }
.legal h1 { font-size: clamp(28px, 4.5vw, 42px); font-weight: 800; letter-spacing: -0.5px; }
.legal .legal-meta { color: var(--muted); font-size: 14px; margin: 8px 0 20px; }
.legal .draft-note { border: 1px dashed var(--border); border-radius: 12px; padding: 14px 18px; background: var(--surface); color: var(--muted); font-size: 13px; margin-bottom: 30px; }
.legal h2 { font-size: 20px; font-weight: 700; color: var(--accent-2); margin: 34px 0 10px; }
.legal p, .legal li { color: #c7d5e6; font-size: 15px; line-height: 1.75; }
.legal ul { margin: 10px 0 10px 22px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--accent-2); }
.legal .legal-lang { margin-top: 40px; font-size: 14px; }

/* FAQ */
.faq { max-width: 760px; margin: 46px auto 0; }
.faq details { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); margin-bottom: 12px; padding: 4px 20px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--accent-2); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--muted); padding: 0 0 18px; font-size: 15px; }

/* CTA band */
.cta-band { margin: 20px auto 0; max-width: var(--maxw); }
.cta-inner { margin: 0 24px; padding: 56px 32px; border-radius: 24px; text-align: center;
  background: linear-gradient(135deg, rgba(30,136,229,.18), rgba(41,182,246,.10));
  border: 1px solid var(--border); }
.cta-inner h2 { font-size: clamp(26px, 3.5vw, 36px); font-weight: 800; }
.cta-inner p { color: var(--muted); margin: 12px auto 26px; max-width: 520px; }

/* Footer */
footer { border-top: 1px solid var(--border); margin-top: 80px; }
.foot { max-width: var(--maxw); margin: 0 auto; padding: 44px 24px; display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; }
.foot .brand { font-weight: 700; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.foot .brand img { width: 26px; height: 26px; border-radius: 7px; }
.foot .brand .mi { color: var(--accent-2); }
.foot-cols { display: flex; gap: 50px; flex-wrap: wrap; }
.foot-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted); margin-bottom: 12px; }
.foot-col a { display: block; color: var(--muted); font-size: 14px; margin-bottom: 8px; transition: color .2s; }
.foot-col a:hover { color: var(--text); }
.foot-bottom { border-top: 1px solid var(--border); padding: 20px 24px; text-align: center; color: var(--muted); font-size: 13px; max-width: var(--maxw); margin: 0 auto; }

@media (max-width: 760px) {
  .nav-links, .nav-cta.desktop-cta { display: none; }
  .hamburger { display: flex; margin-left: auto; }
}