:root {
  color-scheme: dark;
  --bg: #050505;
  --panel: #111;
  --panel-strong: #181818;
  --text: #fff;
  --muted: #b8b8b8;
  --line: #2a2a2a;
  --accent: #c9ff2e;
  --accent-ink: #111900;
  --danger: #ff6b6b;
  --success: #9ff57a;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 50% -10%, rgba(201, 255, 46, 0.14), transparent 38rem),
    linear-gradient(180deg, #090909 0%, #050505 100%);
  color: var(--text);
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: min(100%, 1020px);
  min-height: 100vh;
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
  display: grid;
  gap: 18px;
  align-content: center;
}

.brand-panel,
.form-panel {
  border: 1px solid var(--line);
  background: rgba(17, 17, 17, 0.94);
  box-shadow: var(--shadow);
}

.brand-panel {
  min-height: 230px;
  padding: 26px 22px;
  display: grid;
  align-content: end;
  gap: 22px;
  position: relative;
  overflow: hidden;
}

.brand-panel::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 5px;
  background: var(--accent);
}

.logo {
  width: min(190px, 62vw);
  height: auto;
  display: block;
}

.brand-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 11ch;
  margin: 0;
  font-size: clamp(2.45rem, 14vw, 4.6rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.intro {
  max-width: 30rem;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}

.form-panel {
  padding: 20px;
}

form {
  display: grid;
  gap: 16px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
}

label {
  font-size: 0.92rem;
  font-weight: 750;
  color: var(--text);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--text);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

input {
  min-height: 52px;
  padding: 0 14px;
}

textarea {
  resize: vertical;
  min-height: 92px;
  padding: 13px 14px;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(201, 255, 46, 0.13);
  background: #151515;
}

input::placeholder,
textarea::placeholder {
  color: #777;
}

.duration-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
}

.duration-row span {
  min-height: 52px;
  padding: 0 14px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d0d0d;
  color: var(--muted);
  font-weight: 700;
}

.hint,
.error,
.status {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.4;
}

.hint {
  color: #858585;
}

.error {
  min-height: 1.2em;
  color: var(--danger);
}

.submit-button {
  min-height: 56px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 900;
  cursor: pointer;
  transition: transform 150ms ease, filter 150ms ease;
}

.submit-button:active {
  transform: translateY(1px);
}

.submit-button:disabled {
  cursor: progress;
  filter: grayscale(0.3) brightness(0.78);
}

.status {
  min-height: 1.3em;
  color: var(--muted);
}

.status.success {
  color: var(--success);
}

.status.failure {
  color: var(--danger);
}

@media (min-width: 760px) {
  .shell {
    grid-template-columns: 0.92fr 1.08fr;
    padding: 36px;
  }

  .brand-panel,
  .form-panel {
    min-height: 680px;
  }

  .brand-panel {
    padding: 40px;
  }

  .form-panel {
    padding: 34px;
    display: grid;
    align-content: center;
  }

  .grid {
    grid-template-columns: 1fr 1fr;
  }
}