@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #08080f; --bg2: #0f0f1a; --bg3: #141426; --surface: #1a1a2e;
  --border: rgba(255,255,255,0.08); --border-strong: rgba(255,255,255,0.15);
  --accent: #7c3aed; --accent2: #a855f7; --accent3: #c084fc;
  --pink: #ec4899; --cyan: #22d3ee; --green: #10b981; --yellow: #f59e0b;
  --text: #f8fafc; --text2: #94a3b8; --text3: #64748b;
  --radius: 12px; --radius-lg: 20px;
  --grad: linear-gradient(135deg, #7c3aed, #ec4899);
  --grad2: linear-gradient(135deg, #7c3aed, #22d3ee);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg); color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 64px;
  background: rgba(8,8,15,0.9); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -0.5px; flex-shrink: 0; }
.nav-logo-icon { width: 32px; height: 32px; border-radius: 8px; background: var(--grad); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-logo-checker {
  width: 18px; height: 18px;
  background-image: linear-gradient(45deg,rgba(255,255,255,0.9) 25%,transparent 25%), linear-gradient(-45deg,rgba(255,255,255,0.9) 25%,transparent 25%), linear-gradient(45deg,transparent 75%,rgba(255,255,255,0.9) 75%), linear-gradient(-45deg,transparent 75%,rgba(255,255,255,0.9) 75%);
  background-size: 6px 6px; background-position: 0 0, 0 3px, 3px -3px, -3px 0px; border-radius: 3px;
}
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--text2); transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* Hamburger button */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px; background: none; border: none; border-radius: 8px;
}
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile slide-down menu */
.nav-mobile {
  display: none; position: fixed; top: 56px; left: 0; right: 0;
  background: rgba(8,8,15,0.98); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 16px 20px; flex-direction: column; gap: 2px; z-index: 99;
}
.nav-mobile.open { display: flex; }
.nav-mobile a { padding: 11px 14px; border-radius: 10px; font-size: 15px; font-weight: 600; color: var(--text2); transition: all 0.15s; display: block; }
.nav-mobile a:hover, .nav-mobile a.active { background: var(--surface); color: var(--text); }
.nav-mobile-divider { height: 1px; background: var(--border); margin: 10px 0; }
.nav-mobile-actions { display: flex; flex-direction: column; gap: 8px; }
.nav-mobile-actions .btn { justify-content: center; width: 100%; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border-radius: var(--radius); font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s; white-space: nowrap; }
.btn-ghost { background: transparent; color: var(--text2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 0 30px rgba(124,58,237,0.3); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 40px rgba(124,58,237,0.5); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--border-strong); background: #1e1e38; }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.btn-outline:hover { background: var(--surface); }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 14px; }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 8px; }

/* BADGES */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; }
.badge-purple { background: rgba(124,58,237,0.15); color: var(--accent3); border: 1px solid rgba(124,58,237,0.3); }
.badge-green  { background: rgba(16,185,129,0.15);  color: #34d399;        border: 1px solid rgba(16,185,129,0.3); }
.badge-pink   { background: rgba(236,72,153,0.15);  color: #f472b6;        border: 1px solid rgba(236,72,153,0.3); }
.badge-yellow { background: rgba(245,158,11,0.15);  color: #fbbf24;        border: 1px solid rgba(245,158,11,0.3); }

/* CARDS */
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.card:hover { border-color: var(--border-strong); }

/* SECTIONS */
.section    { padding: 100px 40px; max-width: 1200px; margin: 0 auto; }
.section-sm { padding: 60px 40px;  max-width: 1200px; margin: 0 auto; }

/* HEADINGS */
.h1 { font-size: clamp(34px, 6vw, 72px); font-weight: 800; line-height: 1.1;  letter-spacing: -2px; }
.h2 { font-size: clamp(24px, 4vw, 48px);  font-weight: 800; line-height: 1.15; letter-spacing: -1.5px; }
.h3 { font-size: clamp(18px, 2.5vw,28px); font-weight: 700; line-height: 1.3;  letter-spacing: -0.5px; }

.text-grad  { background: var(--grad);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-grad2 { background: var(--grad2); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.checker-bg {
  background-image: linear-gradient(45deg,#1a1a2e 25%,transparent 25%),linear-gradient(-45deg,#1a1a2e 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#1a1a2e 75%),linear-gradient(-45deg,transparent 75%,#1a1a2e 75%);
  background-size: 20px 20px; background-position: 0 0,0 10px,10px -10px,-10px 0px; background-color: #141426;
}

.divider { border: none; border-top: 1px solid var(--border); margin: 0 40px; }

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 60px 40px 40px; max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-col-title { font-size: 12px; font-weight: 700; color: var(--text3); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { color: var(--text2); font-size: 14px; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--text); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text3); flex-wrap: wrap; gap: 8px; }

/* MISC */
.glow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); display: inline-block; }

.input { width: 100%; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; color: var(--text); font-family: inherit; font-size: 14px; transition: border-color 0.2s; outline: none; }
.input:focus { border-color: var(--accent); }
.input::placeholder { color: var(--text3); }
label { font-size: 13px; font-weight: 600; color: var(--text2); display: block; margin-bottom: 6px; }

.popular-ring { border: 2px solid var(--accent) !important; box-shadow: 0 0 40px rgba(124,58,237,0.2); }

/* ── Tablet ── */
@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .section    { padding: 80px 32px; }
  .section-sm { padding: 48px 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav { padding: 0 20px; height: 56px; }
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .nav-hamburger { display: flex; }
  .section    { padding: 64px 20px; }
  .section-sm { padding: 40px 20px; }
  footer { padding: 48px 20px 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .btn-lg { padding: 13px 22px; font-size: 15px; }
}

/* ── Small mobile ── */
@media (max-width: 480px) {
  .section    { padding: 56px 16px; }
  .section-sm { padding: 32px 16px; }
  .footer-grid { grid-template-columns: 1fr; }
}