:root {
  --ink: #050b1f;
  --ink-2: #071044;
  --panel: #0c1838;
  --line: rgba(59, 91, 255, 0.22);
  --text: #e8eef5;
  --muted: #8fa0b3;
  --accent: #255bfa;
  --accent-strong: #1d48da;
  --accent-glow: #3b5bff;
  --danger: #d92d20;
  --ok: #12b76a;
  --radius: 18px;
  --font: "Sora", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(37, 91, 250, 0.22), transparent 55%),
    radial-gradient(900px 600px at 90% 110%, rgba(7, 43, 148, 0.28), transparent 50%),
    linear-gradient(160deg, #030712 0%, var(--ink) 45%, #071044 100%);
  overflow-x: hidden;
}

.noise,
.grid {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.noise {
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  z-index: 0;
}

.grid {
  z-index: 0;
  background-image:
    linear-gradient(rgba(59, 91, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 91, 255, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}

.shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 1120px;
  margin: 0 auto;
}

.brand {
  animation: rise 700ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.logo {
  margin: 0;
  display: block;
  width: min(100%, 340px);
  height: auto;
}

.tagline {
  margin: 1.25rem 0 0;
  max-width: 28ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
  animation: rise 700ms cubic-bezier(0.22, 1, 0.36, 1) 80ms both;
}

.panel {
  background: linear-gradient(180deg, rgba(12, 24, 56, 0.94), rgba(7, 16, 68, 0.96));
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: clamp(1.4rem, 3vw, 2rem);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.45),
    0 0 60px rgba(37, 91, 250, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  animation: rise 700ms cubic-bezier(0.22, 1, 0.36, 1) 120ms both;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.panel-head p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.error {
  margin-top: 1.1rem;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(217, 45, 32, 0.4);
  background: rgba(217, 45, 32, 0.12);
  color: #ffc4bf;
  font-size: 0.88rem;
}

form {
  margin-top: 1.35rem;
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field span {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.field input {
  width: 100%;
  border: 1px solid rgba(143, 160, 179, 0.28);
  background: rgba(3, 7, 18, 0.72);
  color: var(--text);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  font: inherit;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.field input:hover {
  border-color: rgba(37, 91, 250, 0.45);
}

.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 91, 250, 0.22);
}

.submit {
  margin-top: 0.35rem;
  position: relative;
  border: 0;
  border-radius: 12px;
  padding: 0.95rem 1.1rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 160ms ease, filter 160ms ease, box-shadow 160ms ease;
  box-shadow: 0 10px 28px rgba(37, 91, 250, 0.32);
}

.submit:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.submit:active {
  transform: translateY(0);
}

.submit:disabled {
  cursor: wait;
  filter: saturate(0.7);
}

.submit-spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  animation: spin 0.7s linear infinite;
  margin: 0 auto;
}

.submit.is-loading .submit-label {
  display: none;
}

.submit.is-loading .submit-spinner {
  display: block;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    align-content: center;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }

  .brand {
    text-align: left;
  }

  .logo {
    width: min(100%, 260px);
  }

  .tagline {
    max-width: 36ch;
  }
}