:root {
  --ink: #17130f;
  --ink-raised: #211a15;
  --cream: #fff7f0;
  --sand: #bca899;
  --orange: #ff7a1a;
  --line: rgba(255, 122, 26, 0.25);
  --grid: rgba(255, 122, 26, 0.055);
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--orange); color: var(--ink); }

.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(440px, 0.88fr);
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    radial-gradient(circle at 74% 44%, rgba(255, 122, 26, 0.13), transparent 30rem),
    var(--ink);
  background-size: 72px 72px, 72px 72px, auto, auto;
}

.intro {
  position: relative;
  min-height: 100vh;
  padding: clamp(48px, 7vw, 112px) clamp(36px, 6vw, 104px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  position: absolute;
  top: clamp(42px, 7vh, 74px);
  left: clamp(36px, 6vw, 104px);
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--sand);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.eyebrow span { width: 28px; height: 2px; background: var(--orange); }

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(58px, 7vw, 108px);
  line-height: 0.88;
  letter-spacing: -0.078em;
}

h1 em { color: var(--orange); font-style: normal; }

.intro-copy {
  max-width: 570px;
  margin: 38px 0 0;
  color: #c7b9ae;
  font-size: 15px;
  line-height: 1.75;
}

.signal {
  position: absolute;
  left: clamp(36px, 6vw, 104px);
  right: clamp(36px, 6vw, 104px);
  bottom: clamp(34px, 5vh, 62px);
  height: 116px;
  overflow: hidden;
  border: 1px solid var(--line);
  opacity: 0.78;
}

.signal-label {
  position: absolute;
  top: 16px;
  left: 18px;
  color: #8c796b;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.signal::before, .signal::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.signal::before { left: 30%; }
.signal::after { left: 72%; }

.signal-line {
  position: absolute;
  height: 1px;
  width: 85%;
  left: 7%;
  top: 61%;
  transform-origin: left center;
}

.signal-line-a { background: var(--orange); transform: rotate(-5deg); }
.signal-line-b { background: rgba(255, 247, 240, 0.3); transform: rotate(7deg); }

.signal-dot {
  position: absolute;
  width: 7px;
  height: 7px;
  top: 50%;
  left: 70%;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 7px rgba(255, 122, 26, 0.12);
}

.login-side {
  min-height: 100vh;
  padding: clamp(28px, 5vw, 74px) clamp(28px, 6vw, 104px) clamp(28px, 5vw, 74px) 24px;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(100%, 470px);
  min-height: min(84vh, 700px);
  padding: clamp(34px, 4vw, 52px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(33, 26, 21, 0.96);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(18px);
}

.logo {
  display: block;
  width: min(100%, 250px);
  height: auto;
  margin: 0 auto 26px;
}

.portal-meta {
  min-height: 40px;
  padding: 0 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid var(--line);
  color: var(--sand);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.portal-meta span:last-child { color: var(--orange); letter-spacing: 0.04em; text-transform: lowercase; }

.card-heading { margin: 34px 0 26px; }
.kicker { margin: 0 0 12px; color: var(--orange); font-size: 9px; font-weight: 800; letter-spacing: 0.18em; }
h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); line-height: 1; letter-spacing: -0.055em; }
.card-heading > p:last-child { margin: 14px 0 0; color: #a79384; font-size: 12px; line-height: 1.55; }

.field + .field { margin-top: 17px; }

label {
  display: block;
  margin-bottom: 7px;
  color: #d4c5ba;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

input, button { width: 100%; min-height: 52px; border-radius: 0; font: inherit; }

input {
  padding: 0 16px;
  border: 1px solid rgba(188, 168, 153, 0.32);
  outline: none;
  background: rgba(23, 19, 15, 0.72);
  color: var(--cream);
  opacity: 1;
}

input::placeholder { color: #78685c; opacity: 1; }

button {
  margin-top: 22px;
  border: 1px solid #8b491d;
  background: #6f3b1a;
  color: #d8c2b2;
  font-weight: 800;
  cursor: not-allowed;
  opacity: 1;
}

.preview-state {
  margin: 22px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: #887568;
  font-size: 10px;
  letter-spacing: 0.06em;
}

.preview-state span { width: 6px; height: 6px; border-radius: 50%; background: #8b491d; }

@media (max-width: 900px) {
  body { overflow: auto; }
  .auth-page { grid-template-columns: 1fr; }
  .intro { min-height: auto; padding-top: 120px; padding-bottom: 64px; }
  .signal { display: none; }
  .login-side { min-height: auto; padding: 20px 24px 60px; }
  .login-card { min-height: 0; }
}

@media (max-width: 520px) {
  .intro { padding: 100px 18px 42px; }
  .eyebrow { top: 34px; left: 18px; }
  h1 { font-size: 52px; }
  .intro-copy { margin-top: 26px; }
  .login-side { padding: 12px 18px 42px; }
  .login-card { padding: 30px 24px; }
  .portal-meta { align-items: flex-start; flex-direction: column; gap: 5px; padding-block: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}