:root {
  --clr-bg: #f7f6f3;
  --clr-surface: #ffffff;
  --clr-text: #1a1a1a;
  --clr-text-muted: #6b6b6b;
  --clr-accent: #2c2c2c;
  --clr-border: #e0ddd7;
  --clr-error: #8b2e2e;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius: 8px;
  --transition: .22s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body.arq-auth {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--clr-text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(44, 44, 44, .06), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(181, 101, 77, .08), transparent 55%),
    var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.arq-auth__shell {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(32px, 6vw, 72px) clamp(16px, 4vw, 32px);
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.arq-auth__brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
}

.arq-auth__kicker {
  margin-top: 28px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.arq-auth__title {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 600;
  line-height: 1.15;
}

.arq-auth__copy {
  margin-top: 18px;
  display: grid;
  gap: 12px;
  color: var(--clr-text-muted);
  font-size: .95rem;
  line-height: 1.55;
  max-width: 36rem;
}

.arq-auth__panel {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 28px 24px 32px;
}

.arq-auth__panel-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
}

.arq-auth__panel-note {
  margin-top: 8px;
  margin-bottom: 20px;
  font-size: .8125rem;
  color: var(--clr-text-muted);
  line-height: 1.45;
}

.arq-auth__error {
  margin-bottom: 14px;
  padding: 10px 12px;
  border: 1px solid rgba(139, 46, 46, .25);
  background: rgba(139, 46, 46, .06);
  color: var(--clr-error);
  font-size: .875rem;
  border-radius: 6px;
}

.arq-auth__label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 6px;
}

.arq-auth__input {
  width: 100%;
  margin-bottom: 14px;
  padding: 12px 14px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  background: #fff;
  font: inherit;
  font-size: .9375rem;
}

.arq-auth__input:focus {
  outline: none;
  border-color: var(--clr-accent);
}

.arq-auth__submit {
  width: 100%;
  margin-top: 8px;
  padding: 12px 16px;
  border: none;
  border-radius: 100px;
  background: var(--clr-accent);
  color: #fff;
  font: inherit;
  font-size: .9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity var(--transition);
}

.arq-auth__submit:hover { opacity: .9; }

.arq-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}

.arq-modal[aria-hidden="false"],
.arq-modal[data-open="1"] {
  opacity: 1;
  visibility: visible;
}

.arq-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .45);
}

.arq-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(420px, calc(100vw - 32px));
  background: var(--clr-surface);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--clr-border);
}

.arq-modal__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.arq-modal__text {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  margin-bottom: 22px;
}

.arq-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.arq-modal__btn {
  font: inherit;
  font-size: .875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 100px;
  cursor: pointer;
  border: 1px solid var(--clr-accent);
  background: transparent;
}

.arq-modal__btn--solid {
  background: var(--clr-accent);
  color: #fff;
}

.arq-modal__btn--ghost:hover {
  background: var(--clr-bg);
}

/* Profile */
.arq-profile {
  max-width: 840px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 56px) clamp(16px, 4vw, 28px) 80px;
}

.arq-profile__brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.arq-profile__title {
  margin-top: 28px;
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 600;
}

.arq-profile__note {
  margin-top: 8px;
  color: var(--clr-text-muted);
  font-size: .9rem;
}

.arq-profile__form {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.arq-profile__section {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 18px 0 4px;
}

.arq-profile__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 16px;
}

.arq-profile__field { display: flex; flex-direction: column; gap: 6px; }
.arq-profile__field--full { grid-column: 1 / -1; }

.arq-profile__label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.arq-profile__input,
.arq-profile__select {
  padding: 11px 12px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font: inherit;
  background: #fff;
}

.arq-profile__submit {
  margin-top: 12px;
  justify-self: start;
  padding: 11px 22px;
  border: none;
  border-radius: 100px;
  background: var(--clr-accent);
  color: #fff;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
}

.arq-profile__error {
  margin-top: 16px;
  color: var(--clr-error);
  font-size: .875rem;
}

@media (max-width: 800px) {
  .arq-auth__shell {
    grid-template-columns: 1fr;
  }
  .arq-profile__grid {
    grid-template-columns: 1fr;
  }
}