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

/* ---------------------------------------------------------------
   Design tokens — light / white / orange theme
   --------------------------------------------------------------- */
:root{
  --font-sans: 'Inter', system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --ink-900:#1c1410;
  --ink-700:#4b3a2f;
  --ink-500:#8a7565;
  --ink-400:#ad9a8a;
  --ink-200:#f0e2d6;
  --ink-100:#f8efe6;
  --ink-50:#fffaf5;

  /* Orange primary palette */
  --primary-700:#c2410c;
  --primary-600:#ea580c;
  --primary-500:#f97316;
  --primary-400:#fb923c;
  --primary-300:#fdba74;
  --primary-50:#fff3e8;

  --danger-600:#dc2626;
  --danger-700:#b91c1c;
  --danger-50:#fef2f2;

  --success-600:#16a34a;
  --success-700:#15803d;
  --success-50:#f0fdf4;

  --warning-600:#d97706;
  --warning-50:#fffbeb;

  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;

  --shadow-sm:0 1px 2px rgba(120,53,15,.06);
  --shadow-md:0 6px 20px rgba(120,53,15,.08);
  --shadow-lg:0 20px 45px rgba(120,53,15,.16);

  color-scheme: light;
}

/* ---------------------------------------------------------------
   Reset & base
   --------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  background:#fffdfb;
  color:var(--ink-900);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  position:relative;
  min-height:100vh;
}

/* Subtle animated background: soft drifting orange/white blobs behind everything */
body::before{
  content:"";
  position:fixed;
  inset:-10%;
  z-index:-1;
  pointer-events:none;
  background-image:
    radial-gradient(38% 32% at 12% 18%, rgba(249,115,22,.14), transparent 70%),
    radial-gradient(34% 30% at 88% 12%, rgba(251,146,60,.12), transparent 70%),
    radial-gradient(40% 34% at 20% 88%, rgba(253,186,116,.14), transparent 70%),
    radial-gradient(36% 30% at 90% 85%, rgba(234,88,12,.10), transparent 70%);
  background-repeat:no-repeat;
  animation:drift 26s ease-in-out infinite;
  will-change:transform;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0) scale(1);}
  33%{transform:translate3d(1.5%,-2%,0) scale(1.04);}
  66%{transform:translate3d(-1.5%,1.5%,0) scale(1.02);}
  100%{transform:translate3d(0,0,0) scale(1);}
}
@media (prefers-reduced-motion: reduce){
  body::before{animation:none}
}

h1,h2,h3{font-weight:800;letter-spacing:-.01em;color:var(--ink-900);margin:0 0 4px}
h1{font-size:26px}
h2{font-size:17px;margin-bottom:14px}
p{margin:0 0 10px}
a{color:var(--primary-600)}
::selection{background:var(--primary-50)}
::-webkit-scrollbar{height:10px;width:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--ink-200);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--ink-400)}
:focus-visible{outline:2px solid var(--primary-400);outline-offset:2px;border-radius:4px}

/* ---------------------------------------------------------------
   Top navigation
   --------------------------------------------------------------- */
.top{
  height:64px;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  color:var(--ink-900);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 28px;
  position:sticky;
  top:0;
  z-index:40;
  border-bottom:1px solid var(--ink-200);
  box-shadow:0 1px 0 rgba(255,255,255,.6), 0 8px 24px rgba(120,53,15,.06);
}
.brand{
  font-weight:800;
  font-size:17px;
  color:var(--ink-900);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:10px;
  letter-spacing:-.01em;
}
.brand::before{
  content:"";
  width:11px;height:11px;border-radius:4px;
  background:linear-gradient(135deg,var(--primary-500),var(--primary-400));
  box-shadow:0 0 0 4px rgba(249,115,22,.18);
}
.top nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.top nav a{
  color:var(--ink-500);
  text-decoration:none;
  font-size:14px;
  font-weight:600;
  padding:8px 14px;
  border-radius:99px;
  transition:background .15s ease, color .15s ease;
  white-space:nowrap;
}
.top nav a:hover{background:var(--primary-50);color:var(--primary-700)}
.top nav a.active{background:var(--primary-500);color:#fff}
.top nav a[href*="logout"]{color:var(--danger-600)}
.top nav a[href*="logout"]:hover{background:var(--danger-50);color:var(--danger-700)}

/* ---------------------------------------------------------------
   Layout
   --------------------------------------------------------------- */
.container{max-width:1180px;margin:32px auto 64px;padding:0 20px}
.container>h1{margin-bottom:22px}
.container>.actions[style*="space-between"]{margin-bottom:22px;align-items:center}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.card{
  background:#fff;
  border:1px solid var(--ink-200);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .15s ease, transform .15s ease;
}
.card:hover{box-shadow:var(--shadow-md)}
.grid .card{position:relative;overflow:hidden}
.grid .card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--primary-500),var(--primary-400));
}
.stat{font-size:32px;font-weight:800;letter-spacing:-.02em;margin-top:2px;color:var(--primary-700)}
.muted{color:var(--ink-500)}

/* ---------------------------------------------------------------
   Buttons
   --------------------------------------------------------------- */
.actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:10px 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--ink-200);
  background:#fff;
  color:var(--ink-700);
  font:inherit;
  font-weight:600;
  font-size:14px;
  text-decoration:none;
  cursor:pointer;
  line-height:1.3;
  transition:transform .1s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{background:var(--ink-50);border-color:var(--primary-300);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}

.btn.primary{background:linear-gradient(180deg,var(--primary-500),var(--primary-600));border-color:var(--primary-600);color:#fff;box-shadow:0 4px 14px rgba(234,88,12,.28)}
.btn.primary:hover{background:linear-gradient(180deg,var(--primary-400),var(--primary-500));box-shadow:0 6px 18px rgba(234,88,12,.38)}

.btn.danger{background:linear-gradient(180deg,#ef4444,var(--danger-600));border-color:var(--danger-700);color:#fff;box-shadow:0 4px 14px rgba(220,38,38,.22)}
.btn.danger:hover{background:linear-gradient(180deg,#f87171,var(--danger-600));box-shadow:0 6px 18px rgba(220,38,38,.3)}

.btn.success{background:linear-gradient(180deg,#22c55e,var(--success-600));border-color:var(--success-700);color:#fff;box-shadow:0 4px 14px rgba(22,163,74,.22)}
.btn.success:hover{background:linear-gradient(180deg,#4ade80,var(--success-600));box-shadow:0 6px 18px rgba(22,163,74,.3)}

.inline{display:inline}

/* ---------------------------------------------------------------
   Tables
   --------------------------------------------------------------- */
.table-wrap{
  overflow:auto;
  background:#fff;
  border:1px solid var(--ink-200);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
}
.table{width:100%;border-collapse:collapse;font-size:14.5px}
.table th,.table td{padding:14px 16px;border-bottom:1px solid var(--ink-100);text-align:left;vertical-align:top}
.table th{
  background:var(--ink-50);
  color:var(--ink-500);
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.05em;
  position:sticky;
  top:0;
  z-index:1;
  border-bottom:1px solid var(--ink-200);
}
.table tr:last-child td{border-bottom:none}
.table tbody tr{transition:background .12s ease}
.table tbody tr:hover{background:var(--primary-50)}
.table td .actions{flex-wrap:nowrap}

/* ---------------------------------------------------------------
   Forms
   --------------------------------------------------------------- */
.form{background:#fff;border:1px solid var(--ink-200);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:17px}
.field label{display:block;font-weight:700;font-size:13px;color:var(--ink-700);margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;
  padding:11px 13px;
  border:1.5px solid var(--ink-200);
  border-radius:var(--radius-sm);
  font:inherit;
  font-size:14.5px;
  background:#fff;
  color:var(--ink-900);
  transition:border-color .15s ease, box-shadow .15s ease;
}
.field input:hover,.field textarea:hover,.field select:hover{border-color:var(--primary-300)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;
  border-color:var(--primary-400);
  box-shadow:0 0 0 4px var(--primary-50);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-400)}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238a7565' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.field textarea{min-height:100px;resize:vertical}
.field small{display:block;margin-top:6px;color:var(--ink-500);font-size:12.5px}
.row{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form .actions{margin-top:6px}

/* ---------------------------------------------------------------
   Flash messages
   --------------------------------------------------------------- */
.flash{
  padding:13px 16px 13px 44px;
  border-radius:var(--radius-sm);
  margin-bottom:18px;
  font-weight:600;
  font-size:14px;
  position:relative;
  border:1px solid transparent;
}
.flash::before{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  font-weight:800;font-size:13px;width:18px;height:18px;line-height:18px;
  text-align:center;border-radius:50%;
}
.flash.success{background:var(--success-50);color:var(--success-700);border-color:#bbf7d0}
.flash.success::before{content:"\2713";background:var(--success-600);color:#fff}
.flash.error{background:var(--danger-50);color:var(--danger-700);border-color:#fecaca}
.flash.error::before{content:"!";background:var(--danger-600);color:#fff}
.flash ul{margin:6px 0 0;padding-left:18px}

/* ---------------------------------------------------------------
   Badges
   --------------------------------------------------------------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;
  border-radius:999px;
  background:var(--ink-100);
  color:var(--ink-700);
  font-size:12px;
  font-weight:700;
  text-transform:capitalize;
  letter-spacing:.02em;
}
.badge::before{content:"";width:6px;height:6px;margin-right:1px;border-radius:50%;background:currentColor;opacity:.85;flex-shrink:0}
.badge.active{background:var(--success-50);color:var(--success-700)}
.badge.scheduled{background:var(--primary-50);color:var(--primary-700)}
.badge.closed{background:var(--ink-100);color:var(--ink-500)}
.badge.draft{background:#f5efe9;color:var(--ink-500)}

/* ---------------------------------------------------------------
   Questions list
   --------------------------------------------------------------- */
.question{border:1px solid var(--ink-200);border-radius:var(--radius-md);padding:18px;margin-bottom:14px;background:#fff;box-shadow:var(--shadow-sm)}
.question strong{font-size:15px}
.question .meta{color:var(--ink-500);font-size:13px;margin:6px 0 10px}
.option{display:flex;gap:10px;align-items:center;margin:8px 0;font-size:14px}
.option span:first-child{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:6px;background:var(--ink-100);
  color:var(--ink-500);font-weight:700;font-size:12px;flex-shrink:0;
}

/* ---------------------------------------------------------------
   Login
   --------------------------------------------------------------- */
/* Fallback centering (works everywhere, no :has() needed) */
.login{
  max-width:400px;
  width:calc(100% - 32px);
  margin:70px auto;
  background:#fff;
  border-radius:var(--radius-lg);
  padding:36px 32px;
  box-shadow:var(--shadow-lg);
  border:1px solid var(--ink-200);
}
/* Progressive enhancement: full-viewport light gradient + perfect centering on modern browsers */
body:has(> .login){
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(700px circle at 15% 10%, rgba(249,115,22,.16), transparent 55%),
    radial-gradient(700px circle at 85% 90%, rgba(251,146,60,.14), transparent 55%),
    linear-gradient(180deg,#fffaf5,#fff);
  padding:24px;
}
body:has(> .login) .login{margin:0}
.login::before{
  content:"";display:block;width:40px;height:40px;border-radius:11px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--primary-500),var(--primary-400));
  box-shadow:0 8px 20px rgba(249,115,22,.35);
}
.login h1{text-align:center;font-size:22px}
.login>p.muted{text-align:center;margin-bottom:22px}
.login .btn.primary{width:100%;padding:12px 16px;font-size:15px;margin-top:4px}

/* ---------------------------------------------------------------
   Misc utilities
   --------------------------------------------------------------- */
.small{font-size:13px}
.code{
  font-family:var(--font-mono);
  background:var(--ink-100);
  color:var(--ink-700);
  padding:2px 7px;
  border-radius:6px;
  font-size:12.5px;
}
.danger-text{color:var(--danger-700)}

/* ---------------------------------------------------------------
   Responsive
   --------------------------------------------------------------- */
@media(max-width:720px){
  .top{height:auto;padding:14px 16px;gap:10px;align-items:flex-start;flex-direction:column}
  .top nav{width:100%;gap:2px}
  .top nav a{padding:8px 10px;font-size:13.5px}
  .container{margin:20px auto 40px;padding:0 14px}
  .row,.two{grid-template-columns:1fr}
  .card,.form{padding:18px}
  .table th,.table td{padding:11px 12px}
}

/* Score table */
.score-table th,.score-table td{white-space:nowrap}
.score-table td:first-child{white-space:normal;min-width:170px}
.score-table td:nth-child(2){font-variant-numeric:tabular-nums}
.code{font-family:var(--font-mono);font-size:.85em}
.small{font-size:12px}