:root {
  --palette-100: #003755;
  --palette-65: #597d90;
  --palette-35: #a6b9c4;
  --palette-15: #d9e1e6;
  --palette-5: #f2f5f6;
  --accent: #4cc5d9;
  --active-control: #0ea5c6;
  --info-teal: #00d6a3;
  --grid-background: #002238;
  --tile-black: #002d46;
  --palette-100-rgb: 0, 55, 85;
  --palette-65-rgb: 89, 125, 144;
  --palette-35-rgb: 166, 185, 196;
  --palette-15-rgb: 217, 225, 230;
  --palette-5-rgb: 242, 245, 246;
  --accent-rgb: 76, 197, 217;
  --active-control-rgb: 14, 165, 198;
  --info-teal-rgb: 0, 214, 163;
  --grid-background-rgb: 0, 34, 56;
  --tile-black-rgb: 0, 45, 70;
  --font-primary: "Proxima Nova", "Avenir Next", Inter, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

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

.login-page {
  min-height: 100vh;
  overflow: hidden;
  color: var(--palette-5);
  background:
    radial-gradient(circle at 50% 18%, rgba(var(--accent-rgb), .14), transparent 34%),
    radial-gradient(circle at 18% 78%, rgba(var(--active-control-rgb), .12), transparent 30%),
    linear-gradient(180deg, var(--palette-100), var(--grid-background));
  font-family: var(--font-primary);
}

.login-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}

.ocean-scene {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.ocean-scene::before,
.ocean-scene::after {
  content: "";
  position: absolute;
  inset: 0;
}

.ocean-scene::before {
  background: url("/assets/login-background.jpg") center / cover no-repeat;
  opacity: .7;
  filter: saturate(.78) contrast(.9);
}

.ocean-scene::after {
  background:
    radial-gradient(circle at 50% 18%, rgba(var(--accent-rgb), .18), transparent 34%),
    radial-gradient(circle at 18% 78%, rgba(var(--active-control-rgb), .18), transparent 30%),
    linear-gradient(180deg, rgba(var(--palette-100-rgb), .7), rgba(var(--grid-background-rgb), .84));
}

.login-card {
  position: relative;
  z-index: 2;
  width: min(100%, 390px);
  padding: 28px;
  border: 1px solid rgba(var(--accent-rgb), .28);
  border-radius: 18px;
  background: rgba(var(--tile-black-rgb), .76);
  box-shadow:
    0 28px 80px rgba(var(--palette-100-rgb), .48),
    0 0 0 1px rgba(var(--palette-5-rgb), .04) inset,
    0 0 42px rgba(var(--accent-rgb), .11);
  backdrop-filter: blur(18px);
  animation: login-card-in .72s cubic-bezier(.2, .8, .22, 1) both;
}

.login-card h1 {
  margin: 0;
  color: var(--palette-5);
  font-size: 30px;
  line-height: 1.05;
  letter-spacing: 0;
}

.login-card p {
  margin: 8px 0 0;
  color: var(--palette-35);
  font-size: 14px;
}

.login-error {
  padding: 9px 10px;
  border: 1px solid rgba(var(--accent-rgb), .24);
  border-radius: 8px;
  background: rgba(var(--palette-65-rgb), .18);
  color: var(--palette-15) !important;
}

.login-form {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.login-form label {
  color: var(--palette-15);
  font-size: 12px;
  font-weight: 700;
}

.login-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(var(--accent-rgb), .28);
  border-radius: 9px;
  outline: none;
  background: rgba(var(--palette-100-rgb), .58);
  color: var(--palette-5);
  font: inherit;
  padding: 0 12px;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.login-form input:focus {
  border-color: rgba(var(--accent-rgb), .72);
  background: rgba(var(--palette-100-rgb), .72);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .16);
}

.login-form button {
  min-height: 44px;
  margin-top: 8px;
  border: 1px solid rgba(var(--accent-rgb), .48);
  border-radius: 9px;
  background: linear-gradient(180deg, var(--accent), var(--active-control));
  color: var(--palette-100);
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}

.login-form button:hover,
.login-form button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(var(--active-control-rgb), .26);
}

@keyframes login-card-in {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 640px) {
  .login-shell {
    padding: 18px;
  }

  .login-card {
    padding: 23px;
  }

  .ocean-scene::before {
    background-position: center top;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }

}