/* ═══════════════════════════════════════════════════════════
   GLOBAL.CSS — Shared across all pages
   Tokens · Reset · Nav · User Pill · Auth Modal · Toast · CAPTCHA
   ═══════════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root{
  --bg:#060B1F; --bg2:#0A1030; --bg3:#0D1540;
  --card:rgba(255,255,255,.04); --brd:rgba(255,255,255,.08); --brd2:rgba(255,255,255,.14);
  --txt:#EDF0FF; --sub:rgba(237,240,255,.5);
  --acc1:#FF6B35; --acc2:#FFB347;
  --gr1:#00E676; --gr2:#1DB954; --gr3:#0A4F20;
  --loi:#A855F7; --tho:#F59E0B; --thuy:#22D3EE; --hoa:#F43F5E; --phong:#10B981;
  --r:14px; --rr:20px; --pill:100px;
}

/* ── RESET ───────────────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--txt);font-family:'Inter',sans-serif;overflow-x:hidden;min-height:100vh;}

/* ── NAV ─────────────────────────────────────────────────── */
#nav{
  position:fixed;inset:0 0 auto;z-index:500;
  height:68px;display:flex;align-items:center;justify-content:space-between;
  padding:0 56px;
  background:rgba(6,11,31,.85);
  backdrop-filter:blur(28px) saturate(160%);
  border-bottom:1px solid var(--brd);
}
.n-logo{display:flex;align-items:center;gap:11px;text-decoration:none;}
.n-logo-img{height:42px;width:auto;mix-blend-mode:screen;flex-shrink:0;}
.n-logo-t{line-height:1.2;}
.n-logo-t b{display:block;font-size:.95rem;font-weight:900;color:var(--txt);}
.n-logo-t small{display:block;font-size:.6rem;font-weight:500;color:var(--sub);}
.n-auth-btns{display:flex;align-items:center;gap:8px;}
.n-auth-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 16px;border-radius:40px;
  border:1px solid rgba(255,255,255,.18);color:var(--txt);
  font-size:.82rem;font-weight:600;cursor:pointer;
  background:transparent;transition:.2s;text-decoration:none;white-space:nowrap;
}
.n-auth-btn:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);}
.n-auth-btn-reg{background:rgba(0,230,118,.12);border-color:rgba(0,230,118,.3);color:var(--gr1);}
.n-auth-btn-reg:hover{background:rgba(0,230,118,.22);border-color:rgba(0,230,118,.5);}

/* ── USER PILL ───────────────────────────────────────────── */
.n-user-pill{
  display:none;align-items:center;gap:8px;
  padding:5px 10px 5px 5px;border-radius:40px;
  background:rgba(0,230,118,.08);border:1px solid rgba(0,230,118,.28);
  cursor:pointer;transition:.2s;position:relative;user-select:none;
}
.n-user-pill:hover{background:rgba(0,230,118,.14);}
.n-user-pill.open{background:rgba(0,230,118,.16);border-color:rgba(0,230,118,.5);}
.n-av{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#00e676,#00b54a);display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:900;color:#000;flex-shrink:0;}
.n-uname{font-size:.8rem;font-weight:700;color:#00e676;}
.n-role-tag{font-size:.63rem;color:var(--sub);}
.n-chevron{color:var(--sub);transition:transform .2s;flex-shrink:0;}
.n-user-pill.open .n-chevron{transform:rotate(180deg);}

/* ── DROPDOWN ────────────────────────────────────────────── */
.user-dd{
  position:absolute;top:calc(100% + 10px);right:0;min-width:210px;
  background:#1a1d27;border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:6px;
  box-shadow:0 20px 60px rgba(0,0,0,.6);
  opacity:0;pointer-events:none;transform:translateY(-6px) scale(.97);
  transition:.18s;z-index:600;
}
.n-user-pill.open .user-dd{opacity:1;pointer-events:all;transform:none;}
.dd-hd{display:flex;align-items:center;gap:10px;padding:10px 10px 12px;}
.dd-av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#00e676,#00b54a);display:flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:900;color:#000;flex-shrink:0;}
.dd-name{font-size:.88rem;font-weight:700;color:var(--txt);}
.dd-sub{font-size:.67rem;color:var(--sub);margin-top:2px;}
.dd-sep{height:1px;background:rgba(255,255,255,.07);margin:3px 0;}
.dd-item{display:flex;align-items:center;gap:9px;width:100%;padding:9px 10px;border-radius:8px;background:none;border:none;color:var(--sub);font-size:.83rem;font-weight:500;cursor:pointer;transition:.15s;text-decoration:none;font-family:inherit;text-align:left;}
.dd-item:hover{background:rgba(255,255,255,.07);color:var(--txt);}
.dd-item.danger{color:#f87171;}
.dd-item.danger:hover{background:rgba(239,68,68,.1);color:#f87171;}

/* ── AUTH OVERLAY ────────────────────────────────────────── */
.auth-ov{position:fixed;inset:0;background:rgba(0,0,0,.75);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:.22s;}
.auth-ov.open{opacity:1;pointer-events:all;}
.auth-box{background:#1a1d27;border:1px solid rgba(255,255,255,.1);border-radius:22px;padding:36px 32px 28px;width:min(420px,92vw);position:relative;transform:translateY(18px) scale(.97);transition:.22s;box-shadow:0 32px 80px rgba(0,0,0,.6);}
.auth-ov.open .auth-box{transform:none;}
.auth-close-btn{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--sub);font-size:1.15rem;cursor:pointer;padding:5px 9px;border-radius:7px;line-height:1;}
.auth-close-btn:hover{background:rgba(255,255,255,.08);color:var(--txt);}
.auth-icon{text-align:center;font-size:2.8rem;margin-bottom:4px;}
.auth-logo-wrap{text-align:center;margin-bottom:16px;}
.auth-logo-img{height:54px;width:auto;mix-blend-mode:screen;}
.auth-logo-name{font-size:1.15rem;font-weight:900;margin-top:6px;letter-spacing:-.2px;}
.auth-head{text-align:center;font-size:1.25rem;font-weight:900;margin-bottom:22px;}
/* tabs */
.auth-tabs{display:flex;background:#0f1117;border-radius:10px;padding:3px;margin-bottom:22px;gap:3px;}
.auth-tab-btn{flex:1;padding:8px;border:none;background:none;color:var(--sub);font-size:.88rem;font-weight:700;border-radius:8px;cursor:pointer;transition:.18s;}
.auth-tab-btn.on{background:#252836;color:var(--txt);box-shadow:0 2px 8px rgba(0,0,0,.4);}
/* form */
.auth-form{display:flex;flex-direction:column;gap:12px;}
.auth-inp{width:100%;padding:12px 14px;background:#0f1117;border:1.5px solid rgba(255,255,255,.1);border-radius:10px;color:var(--txt);font-size:.92rem;outline:none;transition:.2s;font-family:inherit;}
.auth-inp:focus{border-color:#00e676;box-shadow:0 0 0 3px rgba(0,230,118,.1);}
.auth-inp::placeholder{color:var(--sub);}
.auth-sub-btn{padding:13px;background:linear-gradient(135deg,#00e676,#00b54a);color:#000;font-weight:900;font-size:.95rem;border:none;border-radius:10px;cursor:pointer;transition:.2s;margin-top:2px;}
.auth-sub-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,230,118,.35);}
.auth-sub-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.auth-msg{padding:10px 14px;border-radius:8px;font-size:.83rem;text-align:center;display:none;}
.auth-msg.err{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.28);color:#f87171;}
.auth-msg.ok{background:rgba(0,230,118,.1);border:1px solid rgba(0,230,118,.25);color:#4ade80;}
/* terms */
.auth-terms{display:flex;align-items:flex-start;gap:9px;font-size:.82rem;color:var(--sub);cursor:pointer;line-height:1.5;padding:2px 0;}
.auth-terms input[type=checkbox]{width:16px;height:16px;flex-shrink:0;accent-color:var(--gr1);cursor:pointer;margin-top:2px;}
.auth-terms a{color:var(--gr1);text-decoration:none;font-weight:600;}
.auth-terms a:hover{text-decoration:underline;}
/* toast */
.auth-toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(12px);background:#1a1d27;border:1px solid rgba(255,255,255,.12);color:var(--txt);padding:11px 24px;border-radius:40px;font-size:.85rem;z-index:99999;pointer-events:none;white-space:nowrap;box-shadow:0 8px 32px rgba(0,0,0,.5);opacity:0;transition:.3s;}
.auth-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ── CAPTCHA ─────────────────────────────────────────────── */
.captcha-row{display:flex;align-items:center;gap:10px;background:rgba(0,230,118,.05);border:1px solid rgba(0,230,118,.18);border-radius:10px;padding:10px 14px;}
.captcha-q{font-size:.9rem;font-weight:700;color:var(--txt);white-space:nowrap;flex-shrink:0;}
.captcha-ans{flex:1;min-width:0;max-width:90px;padding:8px 10px;background:#0f1117;border:1.5px solid rgba(255,255,255,.12);border-radius:8px;color:var(--txt);font-size:.9rem;outline:none;transition:.2s;font-family:inherit;text-align:center;}
.captcha-ans:focus{border-color:#00e676;}
.captcha-refresh{background:none;border:none;color:var(--sub);cursor:pointer;font-size:1.1rem;padding:4px 6px;transition:.2s;flex-shrink:0;line-height:1;}
.captcha-refresh:hover{color:var(--gr1);transform:rotate(20deg);}

/* ── NAV RESPONSIVE ──────────────────────────────────────── */
@media(max-width:1100px){#nav{padding:0 24px;}}
@media(max-width:600px){#nav{padding:0 20px;}}