/* ===== Neumorphism base (login) ===== */

/* Темы через prefers-color-scheme (без JS) */
:root {
  --bg: #0f1317;
  --panel: #1b242c;
  --panel-grad1: #1a232b;
  --panel-grad2: #202a33;
  --text: #e9eef3;
  --muted: #95a1ad;
  --accent: #2e6bff;
  --warn: #ff4d4d;

  --shadow-1: 12px 12px 28px rgba(0, 0, 0, 0.55);
  --shadow-2: -10px -10px 24px rgba(255, 255, 255, 0.03);
  --inset-1: inset 10px 10px 20px rgba(0, 0, 0, 0.4);
  --inset-2: inset -10px -10px 20px rgba(255, 255, 255, 0.02);

  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #e9edf3;
    --panel: #f5f7fa;
    --panel-grad1: #ffffff;
    --panel-grad2: #eef2f7;
    --text: #1b2430;
    --muted: #5c6673;
    --accent: #0b61ff;
    --warn: #d53c2e;

    --shadow-1: 12px 12px 28px rgba(163, 177, 198, 0.55);
    --shadow-2: -10px -10px 24px rgba(255, 255, 255, 0.8);
    --inset-1: inset 8px 8px 18px rgba(163, 177, 198, 0.45);
    --inset-2: inset -8px -8px 18px rgba(255, 255, 255, 0.8);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  min-height: 100vh;

  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(46, 107, 255, 0.12), transparent 60%),
    radial-gradient(800px 400px at -10% 110%, rgba(46, 107, 255, 0.08), transparent 60%),
    var(--bg);

  display: grid;
  place-items: center;
  padding: 24px;
}

.wrap {
  width: min(420px, 92vw);
  padding: 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--panel-grad1), var(--panel-grad2));
  box-shadow: var(--shadow-1), var(--shadow-2);
}

h1 {
  margin: 0 0 16px;
  font-size: 22px;
  letter-spacing: 0.2px;
  font-weight: 700;
}

label {
  display: block;
  margin: 12px 0 6px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.2px;
}

input {
  width: 100%;
  padding: 12px 14px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--inset-1), var(--inset-2);
  outline: none;
}

input::placeholder { color: color-mix(in oklab, var(--muted), transparent 25%); }

input:focus-visible {
  outline: 3px solid color-mix(in oklab, var(--accent), white 15%);
  outline-offset: 2px;
}

button {
  margin-top: 16px;
  width: 100%;
  padding: 12px 16px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(46, 107, 255, 0.45);
  transition: transform .15s ease, box-shadow .2s ease, opacity .2s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(46, 107, 255, 0.55);
}

button:active {
  transform: translateY(0);
  opacity: .95;
}

button:focus-visible {
  outline: 3px solid color-mix(in oklab, var(--accent), white 15%);
  outline-offset: 2px;
}

.err {
  margin-top: 10px;
  min-height: 18px;
  font-size: 13px;
  color: var(--warn);
}