*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #07090e;
  --panel: rgba(16, 20, 28, 0.72);
  --line: rgba(120, 160, 200, 0.14);
  --text: #eaf0f6;
  --text-2: #8ea0b4;
  --text-3: #5d6b7d;
  --teal: #38e0b0;
  --blue: #4c9aff;
  --danger: #ff6b7a;
}

html,
body { margin: 0; padding: 0; height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

.grid {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(rgba(90, 140, 190, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 140, 190, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 42%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 42%, #000 30%, transparent 75%);
}

.orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55; }
.orb-a { width: 480px; height: 480px; left: -120px; top: -80px; background: radial-gradient(circle, rgba(56, 224, 176, 0.5), transparent 65%); }
.orb-b { width: 520px; height: 520px; right: -140px; bottom: -120px; background: radial-gradient(circle, rgba(76, 154, 255, 0.5), transparent 65%); }

.beam {
  position: absolute; left: 50%; top: -30%; width: 1px; height: 70%;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(120, 200, 255, 0.28), transparent);
  filter: blur(0.5px);
}

.vignette { position: absolute; inset: 0; background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.55)); }

.stage {
  position: relative; z-index: 1;
  min-height: 100%;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}

.panel {
  width: 100%;
  max-width: 400px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px 32px 26px;
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.brand { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.logo {
  width: 52px; height: 52px; flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(56, 224, 176, 0.08);
  border: 1px solid rgba(56, 224, 176, 0.18);
}
.brand-text h1 { margin: 0; font-size: 18px; font-weight: 600; letter-spacing: 0.5px; }
.brand-text p { margin: 3px 0 0; font-size: 12px; color: var(--text-3); letter-spacing: 0.3px; }

.field { display: block; margin-bottom: 15px; }
.label { display: block; font-size: 12px; color: var(--text-2); margin-bottom: 7px; letter-spacing: 0.5px; }

.control {
  display: flex; align-items: center; gap: 10px;
  height: 46px; padding: 0 13px;
  background: rgba(10, 13, 19, 0.6);
  border: 1px solid var(--line);
  border-radius: 11px;
  color: var(--text-3);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.control:focus-within {
  border-color: rgba(56, 224, 176, 0.55);
  color: var(--teal);
  box-shadow: 0 0 0 3px rgba(56, 224, 176, 0.12);
}

.control svg { flex: 0 0 auto; }

.control input {
  flex: 1; min-width: 0;
  height: 100%;
  background: transparent; border: none; outline: none;
  color: var(--text); font-size: 14.5px; font-family: inherit;
  caret-color: var(--teal);
}

.control input::placeholder { color: var(--text-3); }

.reveal {
  flex: 0 0 auto;
  display: grid; place-items: center;
  width: 26px; height: 26px;
  background: transparent; border: none; border-radius: 6px;
  color: var(--text-3); cursor: pointer; padding: 0;
}
.reveal:hover { color: var(--text-2); }

.err {
  display: flex; align-items: flex-start; gap: 8px;
  margin: 0 0 14px;
  padding: 10px 12px;
  background: rgba(255, 107, 122, 0.08);
  border: 1px solid rgba(255, 107, 122, 0.28);
  border-radius: 10px;
  color: var(--danger);
  font-size: 12.5px; line-height: 1.5;
}
.err svg { flex: 0 0 auto; margin-top: 1px; }

.submit {
  width: 100%; height: 46px; margin-top: 4px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(90deg, #16b98a, #3b8ff0);
  border: none; border-radius: 11px;
  color: #04120d; font-size: 14.5px; font-weight: 600; letter-spacing: 1px;
  cursor: pointer; font-family: inherit;
  box-shadow: 0 12px 28px -10px rgba(56, 224, 176, 0.5);
  transition: transform 0.12s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.submit:hover { filter: brightness(1.05); box-shadow: 0 16px 34px -10px rgba(56, 224, 176, 0.65); }
.submit:active { transform: translateY(1px); }

.meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  font-size: 11px; color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  letter-spacing: 0.3px;
}

.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 8px var(--teal); }

@media (max-width: 480px) {
  .panel { padding: 28px 22px 22px; }
  .meta { gap: 6px; }
}