* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: var(--neutral-950);
  color: var(--fg1);
}

body,
button,
input,
textarea,
select,
summary {
  font-family: var(--font-sans);
}

body {
  -webkit-font-smoothing: antialiased;
}

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

button {
  cursor: pointer;
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(340px, 520px) minmax(0, 1fr);
  min-height: 100vh;
  min-height: 100dvh;
  padding: 22px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px) 0 0 / 28px 28px,
    radial-gradient(circle at 76% 16%, rgba(216, 155, 0, 0.23), transparent 34%),
    linear-gradient(135deg, #0b0b0f 0%, #141416 54%, #2d2107 100%);
}

.auth-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: min(100%, 520px);
  min-height: calc(100dvh - 44px);
  padding: 24px;
  color: #f7f7f8;
  background: rgba(11, 11, 15, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 26px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(18px);
}

.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  font-size: 22px;
  font-weight: 800;
}

.auth-brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 10px 22px rgba(216, 155, 0, 0.36));
}

.auth-copy {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.auth-kicker {
  color: var(--gold-300);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.auth-copy h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
}

.auth-copy p {
  max-width: 34rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 16px;
  line-height: 1.7;
}

.auth-role-tabs,
.auth-method-tabs,
.signup-account-type {
  display: grid;
  gap: 8px;
}

.auth-role-tabs,
.signup-account-type {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
}

.auth-method-tabs {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.auth-role-tabs button,
.auth-method-tabs button,
.auth-primary,
.auth-secondary {
  min-height: 46px;
  border: 0;
  border-radius: 14px;
  font-weight: 800;
}

.auth-role-tabs button {
  color: rgba(255, 255, 255, 0.66);
  background: transparent;
}

.auth-role-tabs button.is-active {
  color: var(--fg-on-accent);
  background: var(--accent);
  box-shadow: var(--shadow-accent);
}

.signup-account-type button {
  display: grid;
  gap: 4px;
  min-height: 68px;
  padding: 10px;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  border: 0;
  border-radius: 14px;
  text-align: start;
}

.signup-account-type button strong {
  color: inherit;
  font-size: 15px;
}

.signup-account-type button span {
  color: rgba(255, 255, 255, 0.46);
  font-size: 12px;
  line-height: 1.35;
}

.signup-account-type button.is-active {
  color: var(--fg-on-accent);
  background: var(--accent);
  box-shadow: var(--shadow-accent);
}

.signup-account-type button.is-active span {
  color: rgba(19, 19, 22, 0.68);
}

.auth-method-tabs button {
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.auth-method-tabs button.is-active {
  color: #fff;
  background: rgba(216, 155, 0, 0.2);
  border-color: rgba(216, 155, 0, 0.48);
}

.auth-form {
  display: none;
  gap: 12px;
}

.auth-form.is-active {
  display: grid;
}

.auth-form label {
  display: grid;
  gap: 8px;
}

.auth-form label span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  font-weight: 800;
}

.auth-form input {
  width: 100%;
  min-height: 50px;
  padding: 0 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  outline: 0;
}

.auth-form input::placeholder {
  color: rgba(255, 255, 255, 0.34);
}

.auth-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(216, 155, 0, 0.18);
}

.auth-form input.is-invalid,
.auth-form textarea.is-invalid,
.auth-form select.is-invalid,
.auth-check input.is-invalid {
  border-color: rgba(229, 72, 77, 0.76);
  box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.16);
}

.auth-primary {
  color: var(--fg-on-accent);
  background: var(--accent);
  box-shadow: var(--shadow-accent);
}

.auth-secondary {
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-primary:disabled {
  cursor: wait;
  opacity: 0.72;
}

.auth-status {
  min-height: 44px;
  margin: 0;
  padding: 12px 14px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  line-height: 1.55;
}

.auth-status[data-tone="success"] {
  color: #a7f3d0;
  background: rgba(31, 157, 85, 0.16);
  border-color: rgba(31, 157, 85, 0.28);
}

.auth-status[data-tone="error"] {
  color: #fecaca;
  background: rgba(229, 72, 77, 0.15);
  border-color: rgba(229, 72, 77, 0.28);
}

.auth-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.auth-route-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 14px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(216, 155, 0, 0.12);
  border: 1px solid rgba(216, 155, 0, 0.28);
  border-radius: 16px;
}

.auth-route-card div {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.auth-route-card strong {
  font-size: 15px;
}

.auth-route-card span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.55;
}

.auth-links a,
.auth-route-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 13px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  font-weight: 800;
}

.auth-route-card a {
  color: var(--fg-on-accent);
  background: var(--accent);
  border-color: rgba(216, 155, 0, 0.72);
  white-space: nowrap;
}

.auth-progress {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.auth-progress span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 10px;
  color: rgba(255, 255, 255, 0.56);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 800;
}

.auth-progress span.is-active {
  color: var(--gold-200);
  border-color: rgba(216, 155, 0, 0.42);
  background: rgba(216, 155, 0, 0.14);
}

.signup-plan-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.signup-plan-tabs button {
  min-height: 44px;
  color: rgba(255, 255, 255, 0.74);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  font-weight: 800;
}

.signup-plan-tabs button.is-active {
  color: var(--fg-on-accent);
  background: var(--accent);
  border-color: rgba(216, 155, 0, 0.72);
}

.auth-form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.auth-form.auth-form-grid {
  display: none;
}

.auth-form.auth-form-grid.is-active {
  display: grid;
}

.auth-form-grid label.is-wide,
.auth-form-grid .is-wide {
  grid-column: 1 / -1;
}

.auth-form textarea,
.auth-form select {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  outline: 0;
}

.auth-form textarea {
  min-height: 90px;
  resize: vertical;
}

.signup-extra {
  min-width: 0;
  padding: 0;
}

.signup-extra summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  padding: 0 14px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  list-style: none;
}

.signup-extra summary::-webkit-details-marker {
  display: none;
}

.signup-extra summary::after {
  content: "+";
  color: var(--gold-300);
  font-family: var(--font-mono);
}

.signup-extra[open] summary::after {
  content: "-";
}

.signup-extra-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding-top: 12px;
}

.auth-form select {
  appearance: none;
}

.auth-check {
  display: flex !important;
  grid-template-columns: none !important;
  align-items: flex-start;
  gap: 10px !important;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.55;
}

.auth-check input {
  width: 18px;
  min-width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
}

.auth-check span {
  font-weight: 700 !important;
}

.auth-visual {
  display: grid;
  place-content: center;
  gap: 24px;
  min-width: 0;
  padding: 34px;
  color: #fff;
  text-align: center;
}

.auth-visual img {
  width: min(42vw, 330px);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 34px 80px rgba(216, 155, 0, 0.32));
}

.auth-visual div {
  display: grid;
  gap: 10px;
  max-width: 520px;
}

.auth-visual span {
  color: var(--gold-300);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.auth-visual strong {
  font-size: clamp(28px, 4.2vw, 56px);
  line-height: 1.12;
}

@media (max-width: 920px) {
  .auth-shell {
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .auth-panel {
    min-height: auto;
  }

  .auth-copy {
    margin-top: 28px;
  }

  .auth-visual {
    order: -1;
    padding: 22px 10px 4px;
  }

  .signup-page .auth-visual {
    order: 0;
  }

  .auth-visual img {
    width: min(52vw, 170px);
  }

  .auth-visual strong {
    font-size: 24px;
  }
}

@media (max-width: 560px) {
  .auth-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .auth-links {
    display: grid;
  }

  .auth-route-card,
  .auth-form-grid,
  .signup-account-type,
  .signup-extra-grid {
    grid-template-columns: 1fr;
  }
}