/* Bitly-like visual theme — navy background + cream card */
:root{
  --navy: #042536;
  --cream: #fffdf8;
  --muted: #5a6b73;
  --fg: #07202a;
  --accent: #0b6af6;
  --cta: #ff7a00;
  --radius: 28px;
  --card-pad: 28px;
}


/* Panel show/hide: hide by default, show when .active */
.panel { display: none; }
.panel.active { display: block; }

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial; background:var(--navy); color:var(--fg);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}

/* soft decorative background shading */
.page-bg{ position:fixed; inset:0; background: radial-gradient(600px 240px at 10% 12%, rgba(255,255,255,0.03), transparent 30%), radial-gradient(480px 200px at 90% 30%, rgba(255,255,255,0.02), transparent 28%); z-index:-1; pointer-events:none; }

/* topbar */
.topbar{ padding:18px 24px; }
.topbar-inner{ max-width:1100px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.brand{ display:flex; gap:12px; align-items:center; }
.logo{ width:46px; height:46px; display:grid; place-items:center; background:linear-gradient(135deg,#ff8a00,#ff5e62); color:white; border-radius:12px; font-weight:800; }
.brand-text .brand-name{ font-weight:700; color:var(--cream); font-size:18px; }
.brand-text .brand-sub{ font-size:12px; color:var(--cream); opacity:0.9; margin-top:2px; }
.topnav{ display:flex; gap:12px; align-items:center; }
.topnav-link{ color:var(--cream); text-decoration:none; padding:8px 10px; border-radius:8px; font-weight:600; opacity:0.95; }
.topnav-link:hover{ background:rgba(255,255,255,0.04); }

/* centered section */
.center-section{ max-width:1100px; margin:30px auto; padding:0 20px; }
.tabs-row{ display:flex; justify-content:center; gap:18px; margin-bottom:18px; }
.mode-tab{ background:var(--cream); color:var(--navy); padding:12px 22px; border-radius:14px; border:none; font-weight:700; display:flex; gap:10px; align-items:center; box-shadow:0 8px 20px rgba(2,6,23,0.14); }
.mode-tab.active{ box-shadow:0 12px 30px rgba(2,6,23,0.18); transform:translateY(-4px); }

.hero-card{ background:var(--cream); border-radius:var(--radius); padding:var(--card-pad); box-shadow: 0 18px 60px rgba(2,6,23,0.22); border:1px solid rgba(255,255,255,0.06); }
.card-inner{ display:grid; grid-template-columns: 1fr 360px; gap:24px; align-items:start; }

.left{ padding-right:8px; }
.hero-title{ margin:0; font-size:28px; color:var(--navy); }
.sub{ color:var(--muted); margin-top:6px; margin-bottom:14px; }

.field-label{ display:block; font-weight:700; color:var(--navy); margin-bottom:8px; }
.input{ width:100%; padding:12px 14px; border-radius:10px; border:1px solid #eee5df; font-size:15px; background: #fff; color:var(--navy); }
.input.large{ padding:16px 18px; font-size:16px; }
.input.small{ padding:10px 8px; }

.alias-row{ display:flex; gap:14px; align-items:center; margin-top:12px; }
.alias-left{ flex:1; display:flex; flex-direction:column; gap:8px; }
.alias-input{ display:flex; gap:8px; align-items:center; background:transparent; padding:6px; border-radius:8px; }
.origin{ color:var(--muted); font-weight:700; padding:6px 8px; border-radius:8px; background:#fff; border:1px solid #f0ebe6; }
.alias-status{ color:var(--muted); font-weight:800; text-align:right; }

.cta-col{ display:flex; align-items:center; }
.cta{ background:linear-gradient(90deg,var(--accent),#6b5cff); color:white; border:none; padding:12px 18px; border-radius:12px; font-weight:800; cursor:pointer; box-shadow: 0 10px 30px rgba(11,106,246,0.18); }

.result{ margin-top:14px; padding:12px; border-radius:10px; background:#fbf9f7; display:flex; justify-content:space-between; align-items:center; gap:12px; border:1px solid #efeae5; }
.short-url{ color:var(--accent); font-weight:800; word-break:break-all; text-decoration:none; }
.action{ padding:8px 12px; border-radius:10px; border:1px solid #efeae5; background:white; cursor:pointer; font-weight:700; }

.right.decorative{ display:flex; justify-content:center; align-items:center; }
.illustration{ width:100%; height:100%; display:grid; place-items:center; border-radius:12px; }

.qr-result{ margin-top:12px; display:flex; gap:12px; align-items:center; }
.qrcode{ width:160px; height:160px; display:grid; place-items:center; background:#fff; border-radius:12px; border:1px solid #efeae5; }

.footer{ margin-top:30px; }
.footer-inner{ max-width:1100px; margin:12px auto; padding:10px 20px; display:flex; justify-content:space-between; color:var(--cream); opacity:0.9; }

@media (max-width:980px){
  .card-inner{ grid-template-columns: 1fr; }
  .right.decorative{ display:none; }
  .mode-tab{ padding:10px 14px; }
}