/* =========================================================================
   2D to 3D — Unified Backend UI styles (English interface)
   Mirrors the player-facing front-end: dark purple gradient, coral + sunny
   yellow accents, brand "2D to 3D". Designed for the admin.2dto3d.com.cn
   operations console (login / register / forgot / dashboard).
   ========================================================================= */

:root {
  --bg-0: #1a1040;
  --bg-1: #2b1a6b;
  --bg-2: #3a1d8a;
  --accent: #ff7a45;     /* coral */
  --accent-2: #ffd23f;  /* sunny yellow */
  --teal: #2ec4b6;
  --pink: #ff5d8f;
  --ink: #ffffff;
  --ink-dim: rgba(255, 255, 255, 0.72);
  --panel: rgba(20, 12, 52, 0.55);
  --panel-solid: #221646;
  --line: rgba(255, 255, 255, 0.14);
  --radius: 22px;
  --radius-sm: 14px;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.38);
  --font: "Trebuchet MS", "Segoe UI", "Segoe UI Rounded", "Helvetica Neue",
    Roboto, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1100px 520px at 50% -12%, rgba(58, 29, 138, 0.9), transparent 60%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1) 55%, var(--bg-2));
  background-attachment: fixed;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 30px;
}
.brand { font-size: 26px; font-weight: 800; letter-spacing: 0.5px; }
.brand span { color: var(--accent); font-size: 0.6em; margin: 0 0.12em; }

/* ---------- Auth card ---------- */
.auth-wrap {
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.card {
  width: min(92vw, 440px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 34px 30px;
  backdrop-filter: blur(6px);
}
.card h1 { font-size: clamp(24px, 4vw, 32px); margin: 6px 0 4px; font-weight: 800; }
.card .sub { color: var(--ink-dim); margin: 0 0 22px; line-height: 1.5; }

label { display: block; margin: 14px 0 6px; font-size: 14px; color: var(--ink-dim); }
input {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }
input::placeholder { color: rgba(255, 255, 255, 0.4); }

.btn {
  margin-top: 22px;
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 800;
  font-size: 17px;
  color: #2a0e00;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  box-shadow: 0 14px 30px rgba(255, 122, 69, 0.5);
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.18s ease;
}
.btn:hover { filter: brightness(1.05); transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn.ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid var(--line);
  box-shadow: none;
}

.msg { margin-top: 16px; font-size: 14px; line-height: 1.5; padding: 10px 14px; border-radius: var(--radius-sm); }
.msg.err { color: #ff9a9a; background: rgba(255, 90, 90, 0.12); border: 1px solid rgba(255, 90, 90, 0.3); }
.msg.ok { color: #8fffb0; background: rgba(46, 196, 130, 0.12); border: 1px solid rgba(46, 196, 130, 0.3); }

.switch { margin-top: 18px; text-align: center; color: var(--ink-dim); font-size: 14px; }

/* ---------- Dashboard ---------- */
.dash { max-width: 960px; margin: 0 auto; padding: 0 22px 60px; }
.dash-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.dash-head h1 { margin: 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 24px 0; }
.stat {
  background: var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 20px;
  box-shadow: var(--shadow);
}
.stat b { display: block; font-size: 30px; color: var(--accent-2); font-weight: 800; }
.stat span { color: var(--ink-dim); font-size: 13px; }

.panel {
  background: var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  margin-top: 18px;
}
.panel h2 { margin: 0 0 14px; font-size: 20px; color: var(--accent-2); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-dim); font-weight: 700; }
td .role-tag { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: rgba(46,196,182,.18); color: var(--teal); }
td .role-tag.admin { background: rgba(255,210,61,.18); color: var(--accent-2); }
.empty { color: var(--ink-dim); padding: 14px 0; }

@media (max-width: 560px) {
  .topbar { padding: 14px 18px; }
  .card { padding: 26px 22px; }
}