/* douro — Dark Engineering Design System */
:root{
  /* surfaces */
  --bg:#0a0e14; --bg2:#0d121a;
  --panel:#11161f; --panel2:#161d28; --panel3:#1b2531;
  --line:#232d3b; --line2:#2e3a4b;
  /* ink */
  --ink:#e6edf3; --ink2:#aebacb; --muted:#7385a0; --faint:#4a586e;
  /* brand */
  --accent:#3d8bfd; --accent-d:#2f6fd6; --accent-glow:rgba(61,139,253,.35);
  --cyan:#2dd4bf; --violet:#8b7cf6;
  --warn:#f0a93a; --danger:#f0555b; --ok:#34d39a;
  /* effects */
  --radius:10px; --radius-lg:14px;
  --shadow:0 8px 30px rgba(0,0,0,.45), 0 2px 6px rgba(0,0,0,.3);
  --shadow-sm:0 2px 8px rgba(0,0,0,.35);
  --ring:0 0 0 3px var(--accent-glow);
  --font:"Inter","Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic UI",Meiryo,system-ui,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font);color:var(--ink);font-size:14px;line-height:1.6;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(61,139,253,.08), transparent 60%),
    radial-gradient(900px 500px at -5% 110%, rgba(45,212,191,.06), transparent 55%),
    var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration:none}
::selection{background:var(--accent-glow)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--line2);border-radius:6px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:#3a4760;background-clip:padding-box}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:7px;border:0;cursor:pointer;font-family:inherit;
  font-size:13.5px;font-weight:600;letter-spacing:.2px;padding:9px 15px;border-radius:9px;
  color:#fff;background:linear-gradient(180deg,var(--accent),var(--accent-d));
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 6px 16px -6px var(--accent-glow);
  transition:transform .08s,filter .15s,box-shadow .15s}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn svg{width:16px;height:16px}
.btn.sec{background:linear-gradient(180deg,var(--panel3),var(--panel2));color:var(--ink);
  border:1px solid var(--line2);box-shadow:0 1px 0 rgba(255,255,255,.04) inset}
.btn.ghost{background:transparent;border:1px solid var(--line2);color:var(--ink2);box-shadow:none}
.btn.ghost:hover{background:var(--panel2);color:var(--ink)}
.btn.sm{padding:6px 11px;font-size:12.5px;border-radius:8px}
.btn.danger{background:linear-gradient(180deg,#f0555b,#cf3f45)}
.btn.ok{background:linear-gradient(180deg,#34d39a,#22a87b)}

/* form */
input,select,textarea{background:var(--bg2);color:var(--ink);border:1px solid var(--line2);
  border-radius:9px;padding:10px 12px;font-size:14px;font-family:inherit;width:100%;transition:.15s}
input::placeholder,textarea::placeholder{color:var(--faint)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:var(--ring)}
label{display:block;font-size:11.5px;font-weight:600;color:var(--muted);margin:12px 0 5px;
  text-transform:uppercase;letter-spacing:.6px}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237385a0' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}

/* cards / surfaces */
.card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm)}
.tag{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;
  font-size:11.5px;font-weight:700;letter-spacing:.3px;border:1px solid transparent}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.9}
.row{display:flex;gap:12px;flex-wrap:wrap}
.grid{display:grid;gap:14px}
.muted{color:var(--muted)}
code{font-family:var(--mono);font-size:12px;color:var(--cyan);background:rgba(45,212,191,.08);
  padding:2px 6px;border-radius:5px}

/* status pills (engineering palette) */
.st-受付{background:rgba(115,133,160,.12);color:#9fb1cc;border-color:rgba(115,133,160,.3)}
.st-作成中{background:rgba(240,169,58,.12);color:#f0bd6a;border-color:rgba(240,169,58,.3)}
.st-申請済{background:rgba(61,139,253,.12);color:#79acff;border-color:rgba(61,139,253,.3)}
.st-許可{background:rgba(52,211,154,.12);color:#5ee0b4;border-color:rgba(52,211,154,.32)}
.st-差戻{background:rgba(240,85,91,.12);color:#f58a8e;border-color:rgba(240,85,91,.3)}
.st-完了{background:rgba(139,124,246,.14);color:#a99cf8;border-color:rgba(139,124,246,.32)}
.st-却下{background:rgba(74,88,110,.18);color:#8090a8;border-color:rgba(74,88,110,.4)}

/* topbar */
.topbar{display:flex;align-items:center;gap:16px;padding:0 22px;height:60px;
  background:linear-gradient(180deg,#11161f,#0d121a);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:.3px}
.logo .mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--cyan));box-shadow:0 4px 14px -4px var(--accent-glow)}
.logo .mark svg{width:18px;height:18px;color:#fff}
.logo b{color:var(--ink)}
.logo small{display:block;font-size:10.5px;color:var(--muted);font-weight:500;letter-spacing:.2px;margin-top:1px}
.spacer{flex:1}
.nav a{color:var(--muted);padding:8px 13px;border-radius:8px;font-weight:600;font-size:13.5px}
.nav a.active,.nav a:hover{color:var(--ink);background:var(--panel2)}

/* tables */
table{width:100%;border-collapse:separate;border-spacing:0}
th,td{text-align:left;padding:12px 14px;font-size:13px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.6px;
  background:var(--panel2);position:sticky;top:0}
th:first-child{border-top-left-radius:10px}th:last-child{border-top-right-radius:10px}
tbody tr{transition:background .12s}
tbody tr:hover td{background:rgba(61,139,253,.06)}
tbody tr:last-child td{border-bottom:0}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(5,8,12,.78);display:none;align-items:center;
  justify-content:center;z-index:100;padding:20px}
.modal-bg.show{display:flex;animation:fade .15s}
.modal{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line2);
  border-radius:16px;padding:24px;width:100%;max-width:580px;max-height:90vh;overflow:auto;
  box-shadow:var(--shadow);animation:rise .2s cubic-bezier(.2,.8,.2,1)}
.modal h3{margin:0 0 16px;font-size:17px}
@keyframes fade{from{opacity:0}}
@keyframes rise{from{transform:translateY(14px) scale(.98);opacity:0}}

/* toast */
#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:200;display:flex;
  flex-direction:column;gap:8px;align-items:center}
.toast{display:flex;align-items:center;gap:9px;background:var(--panel3);border:1px solid var(--line2);
  padding:11px 18px;border-radius:11px;box-shadow:var(--shadow);font-weight:500;animation:pop .22s cubic-bezier(.2,.8,.2,1)}
.toast::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.toast.err{border-color:rgba(240,85,91,.5)}.toast.err::before{background:var(--danger)}
.toast.ok{border-color:rgba(52,211,154,.5)}.toast.ok::before{background:var(--ok)}
@keyframes pop{from{transform:translateY(10px);opacity:0}}

/* stat cards */
.stat{flex:1;min-width:160px;position:relative;overflow:hidden;padding:18px 18px 16px;
  background:linear-gradient(180deg,var(--panel2),var(--bg2));border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.stat::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--accent),transparent)}
.stat .n{font-size:30px;font-weight:800;letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.stat .l{color:var(--muted);font-size:12px;font-weight:500;margin-top:2px}
.stat .ic{position:absolute;top:16px;right:16px;color:var(--faint)}
.stat .ic svg{width:22px;height:22px}

.hide{display:none!important}
.icon{width:18px;height:18px;display:inline-block;vertical-align:middle}