:root {
  color-scheme: dark;
  --bg: #04080b;
  --line: rgba(220, 241, 246, 0.12);
  --line-strong: rgba(220, 241, 246, 0.22);
  --text: #f5f8f8;
  --muted: #a5b5ba;
  --accent: #43dbe7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(160deg, #020c14 0%, #03080b 50%, #051510 100%);
  color: var(--text);
}

/* ── Bubbles ── */

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

.bubble {
  position: absolute;
  bottom: -24px;
  border-radius: 50%;
  border: 1px solid rgba(67, 219, 231, 0.45);
  background: rgba(67, 219, 231, 0.07);
  animation: bubble-rise var(--b-duration, 16s) var(--b-delay, 0s) infinite linear;
}

@keyframes bubble-rise {
  0%   { transform: translateY(0) translateX(0); opacity: var(--b-opacity, 0.08); }
  80%  { opacity: var(--b-opacity, 0.08); }
  100% { transform: translateY(-110vh) translateX(var(--b-drift, 20px)); opacity: 0; }
}

/* ── Card ── */

.login-card {
  position: relative;
  z-index: 1;
  width: calc(100% - 48px);
  max-width: 420px;
  background: rgba(10, 16, 21, 0.78);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 44px 40px 40px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.52), 0 0 0 1px rgba(67, 219, 231, 0.04);
}

/* ── Logo ── */

.login-logo-link {
  display: block;
  text-align: center;
  margin-bottom: 32px;
  line-height: 0;
}

.login-logo {
  height: 72px;
  width: auto;
  display: inline-block;
  transition: opacity 200ms;
}

.login-logo-link:hover .login-logo {
  opacity: 0.82;
}

/* ── Heading ── */

h1 {
  margin: 0 0 26px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Form ── */

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
}

input {
  min-height: 40px;
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 0 12px;
  font: inherit;
  font-size: 0.9rem;
  background: rgba(4, 8, 11, 0.55);
  color: var(--text);
  outline: none;
  transition: border-color 150ms;
}

input:focus {
  border-color: var(--accent);
}

button[type="submit"] {
  margin-top: 4px;
  min-height: 42px;
  width: 100%;
  border-radius: 8px;
  border: none;
  padding: 0 20px;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  background: var(--accent);
  color: #06100f;
  cursor: pointer;
  transition: filter 150ms;
}

button[type="submit"]:hover {
  filter: brightness(1.08);
}

.form-status {
  min-height: 1.2em;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}

.form-status.status-error {
  color: #f87171;
}