:root {
  --bg: #07111f;
  --panel: rgba(10, 23, 40, 0.9);
  --panel-2: rgba(15, 34, 57, 0.78);
  --ink: #ecf6ff;
  --muted: #8ea5c4;
  --line: rgba(129, 171, 220, 0.24);
  --accent: #12e8c2;
  --accent-2: #f8c945;
  --danger: #fb7185;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(960px 560px at 18% 0%, rgba(18, 232, 194, 0.18), transparent 58%),
    radial-gradient(860px 480px at 94% 8%, rgba(248, 201, 69, 0.18), transparent 54%),
    linear-gradient(140deg, #dcecff 0%, #f7fbff 46%, #cde6ff 100%);
  overflow: hidden;
}

.auth-shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.app-preview {
  position: fixed;
  inset: 26px;
  z-index: 0;
  display: grid;
  grid-template-columns: 240px 1fr;
  border: 1px solid rgba(94, 126, 172, 0.3);
  border-radius: 10px;
  overflow: hidden;
  filter: blur(4px);
  opacity: 0.86;
  transform: scale(1.03);
  pointer-events: none;
  box-shadow: 0 24px 80px rgba(35, 74, 118, 0.26);
}

.app-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.28)),
    radial-gradient(620px 420px at 58% 36%, rgba(18, 232, 194, 0.18), transparent 68%);
}

.preview-sidebar {
  padding: 22px 16px;
  background: linear-gradient(180deg, rgba(239, 247, 255, 0.98), rgba(224, 237, 252, 0.98));
  border-right: 1px solid rgba(88, 119, 164, 0.26);
}

.preview-toggle,
.preview-title,
.preview-nav,
.preview-account,
.preview-heading,
.preview-subheading,
.preview-button,
.preview-kpis div,
.preview-cards div,
.preview-table span {
  border-radius: 8px;
  background: rgba(43, 74, 118, 0.18);
}

.preview-toggle {
  height: 50px;
  margin-bottom: 22px;
  border-radius: 999px;
}

.preview-title {
  width: 68%;
  height: 18px;
  margin-bottom: 18px;
}

.preview-nav {
  height: 38px;
  margin-bottom: 10px;
}

.preview-nav.active {
  background: rgba(18, 232, 194, 0.36);
}

.preview-account {
  height: 70px;
  margin-top: 28px;
}

.preview-content {
  padding: 24px;
  background:
    radial-gradient(700px 360px at 35% 0%, rgba(18, 232, 194, 0.18), transparent 62%),
    linear-gradient(180deg, rgba(250, 253, 255, 0.98), rgba(230, 240, 252, 0.98));
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.preview-heading {
  width: 260px;
  height: 30px;
  margin-bottom: 10px;
  background: rgba(18, 35, 63, 0.5);
}

.preview-subheading {
  width: 390px;
  height: 18px;
}

.preview-button {
  width: 180px;
  height: 44px;
  background: rgba(0, 103, 150, 0.48);
}

.preview-kpis,
.preview-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.preview-kpis div {
  height: 88px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(94, 126, 172, 0.24);
}

.preview-cards div {
  height: 116px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(211, 246, 241, 0.46));
  border: 1px solid rgba(94, 126, 172, 0.24);
}

.preview-table {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(94, 126, 172, 0.28);
  border-radius: 8px;
}

.preview-table span {
  height: 58px;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.68);
}

.auth-panel {
  width: min(440px, 100%);
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(10, 23, 40, 0.96) 0%, rgba(8, 18, 32, 0.97) 100%),
    var(--panel-2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  position: relative;
  z-index: 3;
}

.brand {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-bottom: 30px;
}

.brand-mark {
  width: 112px;
  height: 112px;
  border-radius: 22px;
  object-fit: cover;
  border: 1px solid rgba(18, 232, 194, 0.55);
  box-shadow: 0 0 42px rgba(18, 232, 194, 0.2);
  flex: 0 0 auto;
}

.brand p {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand h1 {
  margin: 0;
  font-size: 1.72rem;
  line-height: 1.1;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.tab,
.primary {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.tab {
  color: var(--muted);
  background: rgba(9, 21, 36, 0.78);
}

.tab.active {
  color: var(--ink);
  border-color: rgba(18, 232, 194, 0.55);
  background: rgba(18, 232, 194, 0.12);
}

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

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: rgba(4, 11, 20, 0.72);
  font: inherit;
  outline: none;
}

input:focus {
  border-color: rgba(18, 232, 194, 0.65);
  box-shadow: 0 0 0 3px rgba(18, 232, 194, 0.12);
}

.primary {
  margin-top: 4px;
  color: #04101b;
  border-color: rgba(18, 232, 194, 0.75);
  background: linear-gradient(135deg, var(--accent), #67f7dd);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.message {
  min-height: 20px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.message.error {
  color: var(--danger);
}

.hidden {
  display: none;
}

@media (max-width: 780px) {
  body {
    overflow: auto;
  }

  .app-preview {
    inset: 12px;
    grid-template-columns: 76px 1fr;
    filter: blur(7px);
  }

  .preview-sidebar {
    padding: 14px 10px;
  }

  .preview-title,
  .preview-account {
    display: none;
  }

  .preview-content {
    padding: 16px;
  }

  .preview-header {
    align-items: flex-start;
  }

  .preview-heading {
    width: 170px;
  }

  .preview-subheading {
    width: 210px;
  }

  .preview-button {
    width: 78px;
  }

  .brand-mark {
    width: 82px;
    height: 82px;
    border-radius: 18px;
  }

  .brand h1 {
    font-size: 1.42rem;
  }

  .preview-kpis,
  .preview-cards {
    grid-template-columns: 1fr;
  }

  .preview-kpis div {
    height: 54px;
  }

  .preview-cards div {
    height: 70px;
  }
}