:root {
  --bg-deep: #0b1218;
  --bg-panel: rgba(14, 22, 30, 0.72);
  --line: rgba(166, 196, 214, 0.16);
  --text: #e7f0f6;
  --muted: #8fa3b2;
  --accent: #f0a35a;
  --accent-strong: #ffb36b;
  --danger: #ff6b6b;
  --ok-line: rgba(240, 163, 90, 0.45);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-display: "Oxanium", sans-serif;
  --font-body: "Manrope", sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg-deep);
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(1200px 700px at 15% 10%, rgba(54, 92, 122, 0.35), transparent 60%),
    radial-gradient(900px 600px at 85% 80%, rgba(180, 96, 40, 0.22), transparent 55%),
    linear-gradient(160deg, #0a1016 0%, #121c26 45%, #0b1218 100%);
}

.grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(140, 170, 190, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 170, 190, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 35%, transparent 80%);
  opacity: 0.55;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.glow-a {
  width: 420px;
  height: 420px;
  top: -80px;
  right: -40px;
  background: rgba(240, 163, 90, 0.18);
  animation: drift 12s ease-in-out infinite alternate;
}

.glow-b {
  width: 380px;
  height: 380px;
  bottom: -100px;
  left: -60px;
  background: rgba(72, 130, 170, 0.2);
  animation: drift 14s ease-in-out infinite alternate-reverse;
}

.scan {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(255, 255, 255, 0.015) 50%,
    transparent 100%
  );
  background-size: 100% 220%;
  animation: scan 8s linear infinite;
  pointer-events: none;
}

.stage {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.portal {
  width: min(100%, 440px);
  padding: 36px 32px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    var(--bg-panel);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  animation: rise 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.brand {
  margin: 0;
  display: grid;
  gap: 4px;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 8vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
  background: linear-gradient(120deg, #fff 20%, #f0a35a 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-sub {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}

.lede {
  margin: 16px 0 28px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.auth {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #c2d0da;
}

.field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(6, 12, 18, 0.65);
  color: var(--text);
  font: inherit;
  font-size: 0.98rem;
  padding: 13px 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.field input::placeholder {
  color: #617484;
}

.field input:focus {
  border-color: var(--ok-line);
  box-shadow: 0 0 0 3px rgba(240, 163, 90, 0.12);
  background: rgba(8, 16, 24, 0.85);
}

.submit {
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 14px 16px;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #1a120b;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  cursor: pointer;
  transition: transform 0.18s ease, filter 0.18s ease, box-shadow 0.18s ease;
  box-shadow: 0 10px 28px rgba(240, 163, 90, 0.22);
}

.submit svg {
  width: 18px;
  height: 18px;
  transition: transform 0.18s ease;
}

.submit:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(240, 163, 90, 0.3);
}

.submit:hover svg {
  transform: translateX(3px);
}

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

.submit:disabled {
  opacity: 0.7;
  cursor: wait;
  transform: none;
}

.error {
  margin: 2px 0 0;
  min-height: 1.25rem;
  text-align: center;
  color: var(--danger);
  font-size: 0.9rem;
  font-weight: 600;
}

.error[hidden] {
  display: none;
}

.portal.is-error {
  animation: shake 0.42s ease;
  border-color: rgba(255, 107, 107, 0.35);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-8px);
  }
  40% {
    transform: translateX(7px);
  }
  60% {
    transform: translateX(-5px);
  }
  80% {
    transform: translateX(3px);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(24px, 18px, 0);
  }
}

@keyframes scan {
  from {
    background-position: 0 -40%;
  }
  to {
    background-position: 0 140%;
  }
}

@media (max-width: 480px) {
  .portal {
    padding: 28px 20px 24px;
  }

  .brand-sub {
    letter-spacing: 0.18em;
  }
}