/* ============================================================
   FIFA WORLD CUP 2026 — PREDICTION PLATFORM
   Design System (Mobile-first, Premium, Light)
   ============================================================ */

:root {
  /* Brand */
  --green-600:  #fbbf24;
  --green-500:  #fbbf24;
  --green-50:   #fef9e7;
  --emerald:    #fbbf24;
  --emerald-50: #fef9e7;
  --gold:       #fbbf24;
  --gold-soft:  #fef3c7;

  /* Neutrals */
  --white:      #FFFFFF;
  --bg:         #F5F7FA;
  --bg-soft:    #FAFBFC;
  --border:     #E5E7EB;
  --border-2:   #EEF1F5;
  --text:       #111827;
  --text-2:     #374151;
  --text-3:     #6B7280;
  --text-4:     #9CA3AF;

  /* Accents */
  --blue:       #2563EB;
  --blue-50:    #EFF6FF;
  --red:        #EF4444;
  --red-50:     #FEF2F2;
  --purple:     #8B5CF6;

  /* Effects */
  --shadow-xs: 0 1px 2px rgba(17,24,39,.04);
  --shadow-sm: 0 2px 6px rgba(17,24,39,.05), 0 1px 2px rgba(17,24,39,.04);
  --shadow-md: 0 8px 24px -8px rgba(17,24,39,.10), 0 2px 6px rgba(17,24,39,.05);
  --shadow-lg: 0 20px 40px -16px rgba(17,24,39,.18);
  --shadow-glow: 0 10px 30px -8px rgba(251,191,36,.35);

  /* Radii */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 20px;
  --r-xl: 24px;
  --r-2xl: 32px;
  --r-full: 999px;

  /* Spacing scale */
  --s-1: 4px;   --s-2: 8px;   --s-3: 12px;
  --s-4: 16px;  --s-5: 20px;  --s-6: 24px;
  --s-8: 32px;  --s-10: 40px; --s-12: 48px;

  /* Type */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout */
  --nav-h: 76px;
  --header-h: 64px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  font-feature-settings:"cv11","ss01";
  letter-spacing:-0.01em;
}
img{max-width:100%;display:block}
button{font:inherit;border:none;background:none;cursor:pointer;color:inherit}
input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}

/* ---------- Typography ---------- */
.h-display{font-size:34px;line-height:1.1;font-weight:800;letter-spacing:-0.03em}
.h1{font-size:28px;line-height:1.15;font-weight:800;letter-spacing:-0.02em}
.h2{font-size:22px;line-height:1.2;font-weight:700;letter-spacing:-0.02em}
.h3{font-size:18px;line-height:1.3;font-weight:700}
.h4{font-size:16px;line-height:1.35;font-weight:600}
.body{font-size:15px;line-height:1.5;color:var(--text-2)}
.caption{font-size:13px;color:var(--text-3)}
.micro{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px; padding:0 20px;
  border-radius: var(--r-full);
  font-weight:600; font-size:15px;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.97)}
.btn-primary{
  background: linear-gradient(90deg, #fbbf24 0%, #c2af32 100%);
  color:#fff; box-shadow: var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.04)}
.btn-secondary{background:var(--white);color:var(--text);border:1px solid var(--border)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-dark{background:var(--text);color:#fff}
.btn-gold{background:linear-gradient(135deg,#F4B400,#E59C00);color:#1a1300;box-shadow:0 10px 24px -10px rgba(244,180,0,.55)}
.btn-icon{width:44px;height:44px;padding:0;border-radius:var(--r-full)}
.btn-block{width:100%}
.btn-sm{height:36px;padding:0 14px;font-size:13px}

/* ---------- Cards ---------- */
.card{
  background: var(--white);
  border: 1px solid var(--border-2);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--s-5);
}
.card-glass{
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border:1px solid rgba(255,255,255,.6);
  border-radius: var(--r-xl);
  box-shadow: 0 8px 30px -10px rgba(17,24,39,.12);
}
.card-flat{background:var(--white);border-radius:var(--r-lg);padding:var(--s-4)}
.card-stat{padding:var(--s-4);border-radius:var(--r-lg);background:var(--white);border:1px solid var(--border-2)}

/* ---------- Inputs ---------- */
.input{
  width:100%; height:52px;
  padding: 0 16px;
  border:1px solid var(--border);
  background: var(--white);
  border-radius: var(--r-md);
  font-size:15px; color:var(--text);
  transition:border-color .15s, box-shadow .15s;
}
.input:focus{outline:none;border-color:var(--green-600);box-shadow:0 0 0 4px var(--green-50)}
.input-group{position:relative}
.input-group .input{padding-left:46px}
.input-group .icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-4)}
.label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}

/* ---------- Badges & Pills ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-full);font-size:12px;font-weight:600}
.badge-green{background:var(--green-50);color:var(--green-600)}
.badge-gold {background:#FFF7DC;color:#A77800}
.badge-blue {background:var(--blue-50);color:var(--blue)}
.badge-red  {background:var(--red-50);color:var(--red)}
.badge-gray {background:var(--bg);color:var(--text-3)}
.badge-live {background:#FEE2E2;color:#B91C1C;position:relative;padding-left:18px}
.badge-live::before{content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:#DC2626;animation:pulse 1.4s infinite}

@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(220,38,38,.5)}70%{box-shadow:0 0 0 8px rgba(220,38,38,0)}100%{box-shadow:0 0 0 0 rgba(220,38,38,0)}}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:var(--r-full);overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  padding:8px 16px;border-radius:var(--r-full);
  font-size:13px;font-weight:600;color:var(--text-3);
  white-space:nowrap;transition:.2s;
}
.tab.active{background:var(--white);color:var(--text);box-shadow:var(--shadow-xs)}

.tabs-underline{display:flex;gap:24px;border-bottom:1px solid var(--border-2);overflow-x:auto;scrollbar-width:none}
.tab-u{
  padding:14px 0;font-size:14px;font-weight:600;color:var(--text-3);
  border-bottom:2px solid transparent;white-space:nowrap;transition:.2s;
}
.tab-u.active{color:var(--green-600);border-color:var(--green-600)}

/* ---------- Avatar ---------- */
.avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,#E5E7EB,#F3F4F6);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);font-weight:700;overflow:hidden;flex-shrink:0;
}
.avatar-lg{width:64px;height:64px;font-size:22px}
.avatar-xl{width:96px;height:96px;font-size:32px}
.avatar.ring{box-shadow:0 0 0 3px var(--white), 0 0 0 5px var(--green-500)}

/* ---------- Borderly.dev SVG Flags ---------- */
.flag-box{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  border-radius:5px;overflow:hidden;
  box-shadow:0 1px 4px rgba(0,0,0,.18), 0 0 0 1px rgba(0,0,0,.07);
  line-height:0;
}
.flag-box-sm{
  border-radius:2px;
  box-shadow:0 1px 2px rgba(0,0,0,.14), 0 0 0 1px rgba(0,0,0,.06);
}
.flag{
  display:block;object-fit:cover;width:100%;height:100%;
}
.flag-box   .flag-sm { width:22px;  height:16px; }
.flag-box   .flag-md { width:32px;  height:24px; }
.flag-box   .flag-lg { width:48px;  height:36px; }
.flag-box   .flag-xl { width:64px;  height:48px; }

/* ---------- Bottom navigation ---------- */
.bottom-nav{
  position:absolute; left:0; right:0; bottom:0;
  height: var(--nav-h);
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-top:1px solid var(--border-2);
  display:grid;grid-template-columns:repeat(5,1fr);
  padding: 8px 0px calc(8px + env(safe-area-inset-bottom));
  z-index: 20;
}
.bn-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;color:var(--text-3);font-size:11px;font-weight:600;border-radius:14px;
  transition:.2s;
}
.bn-item .ic{font-size:22px}
.bn-item.active{color:var(--green-600)}
.bn-item.active .ic{transform:translateY(-1px)}

/* ---------- Top header ---------- */
.app-header{
  position:sticky; top:0; z-index:15;
  height: var(--header-h);
  display:flex;align-items:center;justify-content:space-between;
  padding: 0 var(--s-5);
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom:1px solid var(--border-2);
}
.app-header .title{font-size:17px;font-weight:700}

/* ---------- Floating Action Button ---------- */
.fab{
  position:absolute; right:20px; bottom: calc(var(--nav-h) + 20px);
  width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,var(--green-600),var(--emerald));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow: var(--shadow-glow);z-index:18;
  transition: transform .15s ease;
}
.fab:active{transform:scale(.92)}

/* ---------- Skeleton ---------- */
.skeleton{
  background: linear-gradient(90deg,#EEF1F5 0%,#F7F9FC 50%,#EEF1F5 100%);
  background-size:200% 100%;
  animation: shimmer 1.4s linear infinite;
  border-radius:8px;
}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- Gradients & Hero backgrounds ---------- */
.bg-stadium{
  background:
    radial-gradient(120% 80% at 20% 0%, rgba(251,191,36,.18), transparent 60%),
    radial-gradient(120% 80% at 100% 10%, rgba(244,180,0,.18), transparent 60%),
    linear-gradient(180deg,#FFFFFF, #F5F7FA);
}

/* ---------- Utility ---------- */
.row{display:flex;align-items:center}
.row.between{justify-content:space-between}
.row.center{justify-content:center}
.col{display:flex;flex-direction:column}
.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-5{gap:20px}.gap-6{gap:24px}
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-5{margin-top:20px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-5{margin-bottom:20px}.mb-6{margin-bottom:24px}
.p-4{padding:16px}.p-5{padding:20px}.p-6{padding:24px}
.text-center{text-align:center}
.text-green{color:var(--green-600)}.text-gold{color:#A77800}.text-red{color:var(--red)}.text-blue{color:var(--blue)}.text-muted{color:var(--text-3)}
.full{width:100%}
.grid{display:grid;gap:12px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.divider{height:1px;background:var(--border-2);margin:16px 0}
.hidden{display:none!important}
.scroll-x{overflow-x:auto;scrollbar-width:none}
.scroll-x::-webkit-scrollbar{display:none}