:root{
  --bg:#eef2f5;
  --card:#ffffff;
  --surface:#e6f2f7;
  --muted:#475569;
  --accent:#14b8a6;   /* teal */
  --accent-2:#60a5fa; /* light blue */
  --success:#16a34a;
  --danger:#dc2626;
  --warning:#f59e0b;
  --radius:16px;
  --shadow: 0 8px 24px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html,body{
  margin:0;padding:0;
  background:linear-gradient(145deg, #eef2f5 0%, #f7fafc 50%, #eef2f5 100%);
  color:#0f172a;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial;
}
a{color:#0f172a;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:20px}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter: blur(10px); border-bottom:1px solid rgba(2,6,23,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{display:flex;align-items:center;gap:10px}
.brand .logo{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;box-shadow:var(--shadow)}
.brand .logo svg{width:24px;height:24px;fill:white}
.brand .name{font-weight:800;letter-spacing:.2px;color:#0f172a}
.brand .tag{color:var(--muted);font-size:12px}
.menu{display:flex;gap:10px}
.menu a{padding:10px 12px;background:#ffffff;border:1px solid rgba(2,6,23,.08);border-radius:12px;transition:transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease;display:flex;align-items:center;gap:8px;color:#0f172a}
.menu a:hover{background:color-mix(in srgb, var(--accent-2) 18%, white);border-color:color-mix(in srgb, var(--accent) 25%, rgba(2,6,23,.12));transform:translateY(-1px)}
.burger{display:none;padding:10px;border:1px solid rgba(2,6,23,.12);border-radius:12px;background:#ffffff;color:#0f172a}
.drawer{display:none}
@media (max-width: 840px){
  .menu{display:none}
  .burger{display:block}
  .drawer{display:block;position:fixed;inset:0 0 auto auto;width:min(92vw,360px);height:100%;background:#f8fafc;
    border-left:1px solid rgba(2,6,23,.08);transform:translateX(100%);transition:transform .25s ease;z-index:60}
  .drawer.open{transform:translateX(0)}
  .drawer .dhead{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(2,6,23,.08)}
  .drawer .dmenu{display:grid;gap:10px;padding:16px}
  .drawer a{padding:12px 14px;background:#ffffff;border:1px solid rgba(2,6,23,.08);border-radius:12px;color:#0f172a}
}

.hero{padding:36px 0 12px; display:grid; gap:12px;}
h1{margin:0;font-size:34px;line-height:1.1;color:#0f172a}
.sub{color:#334155;max-width:70ch}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0 34px;}
@media (max-width: 920px){ .grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width: 620px){ .grid{grid-template-columns:1fr;}}

.card{background:linear-gradient(180deg, #ffffff, #f1f5f9);border:1px solid rgba(2,6,23,.08);border-radius:var(--radius); padding:16px; box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;min-height:86px;position:relative;overflow:hidden;color:#0f172a}
.card:hover{border-color:color-mix(in srgb, var(--accent) 25%, rgba(2,6,23,.12));}
.card .ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb, var(--accent) 18%, white);border:1px solid color-mix(in srgb, var(--accent) 35%, transparent)}
.card .ico svg{width:26px;height:26px; fill:white}
.card .meta{display:grid;gap:6px}
.card .title{font-weight:700;color:#0f172a}
.card .desc{color:#334155;font-size:13px}
.badge{position:absolute;right:10px;top:10px;font-size:11px;padding:4px 8px;border-radius:99px;background:color-mix(in srgb, var(--accent) 18%, white);border:1px solid color-mix(in srgb, var(--accent) 40%, transparent); color:#0f172a}

.footer{color:#334155;font-size:13px;border-top:1px solid rgba(2,6,23,.08);padding:18px;margin-top:28px}
.footer a{color:#0f172a;text-decoration:underline dotted}

.tool-wrap{max-width:900px;margin:0 auto;padding:20px}
.toolbar{display:flex;gap:8px;margin:8px 0 14px}
.toolbar button{padding:8px 12px;border-radius:10px;border:1px solid rgba(2,6,23,.12);background:#ffffff;color:#0f172a;cursor:pointer}
.toolbar button:hover{background:color-mix(in srgb, var(--accent-2) 14%, white)}

.tool{background:#ffffff;border:1px solid rgba(2,6,23,.08);border-radius:16px;padding:16px;box-shadow:var(--shadow);color:#0f172a}
.tool h2{margin:0 0 10px;color:#0f172a}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width: 680px){ .row{grid-template-columns:1fr} }
.input, select, button{width:100%;padding:12px;border-radius:12px;border:1px solid rgba(2,6,23,.12);background:#f8fafc;color:#0f172a}
button{cursor:pointer;transition:transform .15s ease, background .2s ease;border-color:color-mix(in srgb, var(--accent) 35%, rgba(2,6,23,.12))}
button:hover{transform:translateY(-1px);background:color-mix(in srgb, var(--accent) 16%, #f8fafc)}
small{color:#334155}
.table{width:100%;border-collapse:separate;border-spacing:0 8px}
.table td{background:#f8fafc;padding:10px;border:1px solid rgba(2,6,23,.08);color:#0f172a}
.table td:first-child{border-radius:12px 0 0 12px}
.table td:last-child{border-radius:0 12px 12px 0}
.notice{padding:10px;border-radius:12px;background:color-mix(in srgb, var(--warning) 10%, #fff);border:1px solid color-mix(in srgb, var(--warning) 35%, #fff);color:#92400e}