/* Auth pages: visual companion to the homepage observatory theme */

body.auth-page {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(145deg, #eaf2ff 0%, #f8fbff 44%, #e6f0ff 100%);
}

.dark-mode body.auth-page {
  background: linear-gradient(145deg, #020c1b 0%, #030e22 50%, #020a17 100%);
}

body.auth-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
}

.dark-mode body.auth-page::before {
  background-image:
    linear-gradient(rgba(96, 165, 250, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 165, 250, 0.045) 1px, transparent 1px);
}

.auth-page main {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-height) + 0.65rem);
  padding-bottom: 2.5rem;
}

.auth-container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, 0.82fr);
  gap: clamp(1.2rem, 3vw, 2.4rem);
  align-items: flex-start;
  min-height: auto;
  padding-top: clamp(0.5rem, 1.8vh, 1.25rem);
}

.auth-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 680px;
  animation: authFadeUp 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
  position: relative;
}

.auth-visual::before {
  content: "";
  position: absolute;
  top: -2.5rem;
  left: 0;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

.auth-card {
  position: relative;
  width: 100%;
  max-width: 520px;
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(147, 197, 253, 0.28);
  border-radius: 8px;
  padding: clamp(1.25rem, 2.4vw, 1.9rem);
  background: rgba(255, 255, 255, 0.94);
  box-shadow:
    0 24px 70px rgba(15, 23, 42, 0.14),
    0 8px 24px rgba(59, 130, 246, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: authFadeUp 0.65s 0.12s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.dark-mode .auth-card {
  border-color: rgba(96, 165, 250, 0.2);
  background: rgba(8, 20, 42, 0.78);
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.auth-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, #1d4ed8, #06b6d4, #10b981);
}

.auth-badge,
.auth-domain-pill,
.auth-check {
  display: inline-flex;
  align-items: center;
}

.auth-badge {
  align-self: flex-start;
  gap: 0.45rem;
  min-height: 2rem;
  padding: 0.28rem 0.78rem;
  border: 1px solid rgba(37, 99, 235, 0.32);
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dark-mode .auth-badge {
  border-color: rgba(96, 165, 250, 0.22);
  background: rgba(96, 165, 250, 0.1);
  color: #93c5fd;
}

.auth-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #3b82f6;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.68);
}

.auth-visual h1 {
  max-width: 12ch;
  margin: 0;
  color: var(--text-color);
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: 0;
}

.auth-gradient-text {
  display: block;
  background: linear-gradient(125deg, #1d4ed8 0%, #3b82f6 45%, #06b6d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.auth-visual p {
  max-width: 54ch;
  margin: 0;
  color: #475569;
  font-size: 1rem;
  line-height: 1.7;
}

.dark-mode .auth-visual p {
  color: #cbd5e1;
}

.auth-domain-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.auth-domain-pill {
  gap: 0.45rem;
  min-height: 2.25rem;
  padding: 0.38rem 0.72rem;
  border: 1px solid rgba(59, 130, 246, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  color: #1e3a8a;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.auth-domain-pill:nth-child(2) {
  border-color: rgba(8, 145, 178, 0.3);
  color: #0e7490;
}

.auth-domain-pill:nth-child(3) {
  border-color: rgba(5, 150, 105, 0.3);
  color: #047857;
}

.auth-domain-pill:nth-child(4) {
  border-color: rgba(101, 163, 13, 0.3);
  color: #3f6212;
}

.dark-mode .auth-domain-pill {
  background: rgba(8, 20, 42, 0.64);
  color: #93c5fd;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.dark-mode .auth-domain-pill:nth-child(2) {
  color: #67e8f9;
}

.dark-mode .auth-domain-pill:nth-child(3) {
  color: #6ee7b7;
}

.dark-mode .auth-domain-pill:nth-child(4) {
  color: #bef264;
}

.auth-visual-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  max-width: 620px;
  margin-top: 0.45rem;
  padding: 1rem;
  border: 1px solid rgba(147, 197, 253, 0.26);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 18px 42px rgba(59, 130, 246, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.dark-mode .auth-visual-card {
  border-color: rgba(96, 165, 250, 0.18);
  background: rgba(8, 20, 42, 0.62);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

.auth-constellation {
  width: min(240px, 28vw);
  min-width: 190px;
  height: auto;
}

.auth-check-list {
  display: grid;
  gap: 0.75rem;
}

.auth-check {
  gap: 0.62rem;
  min-width: 0;
  color: var(--text-color);
  font-size: 0.92rem;
  font-weight: 600;
}

.auth-check-mark {
  display: grid;
  flex: 0 0 auto;
  width: 1.6rem;
  height: 1.6rem;
  place-items: center;
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
}

.dark-mode .auth-check-mark {
  background: rgba(52, 211, 153, 0.12);
  color: #6ee7b7;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  margin-bottom: 1.35rem;
  padding: 0.25rem;
  border: 1px solid rgba(147, 197, 253, 0.26);
  border-radius: 8px;
  background: rgba(241, 245, 249, 0.78);
}

.dark-mode .auth-tabs {
  border-color: rgba(96, 165, 250, 0.18);
  background: rgba(15, 23, 42, 0.56);
}

.auth-tab {
  min-height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--secondary-text-color);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.auth-tab:hover,
.auth-tab.active {
  color: #1d4ed8;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.dark-mode .auth-tab:hover,
.dark-mode .auth-tab.active {
  color: #bfdbfe;
  background: rgba(37, 99, 235, 0.16);
  box-shadow: none;
}

.auth-header {
  margin-bottom: 1.25rem;
  text-align: left;
}

.auth-header h1 {
  margin: 0 0 0.38rem;
  color: var(--text-color);
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0;
}

.auth-header p {
  margin: 0;
  color: var(--secondary-text-color);
  font-size: 0.94rem;
  line-height: 1.55;
}

.auth-card .form-group {
  margin-bottom: 1rem;
}

.auth-card .form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.auth-card .form-row .form-group {
  margin-bottom: 0;
}

.auth-card label {
  display: block;
  margin-bottom: 0.42rem;
  color: var(--text-color);
  font-size: 0.86rem;
  font-weight: 700;
}

.auth-card input,
.auth-card select {
  width: 100%;
  min-height: 3rem;
  border: 1px solid rgba(148, 163, 184, 0.52);
  border-radius: 8px;
  padding: 0.78rem 0.9rem;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text-color);
  font: inherit;
  font-size: 0.94rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.dark-mode .auth-card input,
.dark-mode .auth-card select {
  border-color: rgba(71, 85, 105, 0.95);
  background: rgba(15, 23, 42, 0.76);
}

.auth-card input:focus,
.auth-card select:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.8);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

.auth-card input::placeholder {
  color: #94a3b8;
}

.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper input {
  padding-right: 2.85rem;
}

.auth-card .password-toggle-btn {
  position: absolute;
  right: 0.58rem;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--secondary-text-color);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.auth-card .password-toggle-btn:hover {
  background: rgba(59, 130, 246, 0.08);
  color: var(--primary-color);
  transform: none;
}

.auth-card button {
  font-family: inherit;
}

.auth-card .auth-submit-btn,
.auth-card #loginBtn,
.auth-card #signupBtn {
  width: 100%;
  min-height: 3rem;
  margin: 0;
  border: 0;
  border-radius: 8px;
  padding: 0.78rem 1rem;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #0ea5e9 100%);
  color: #ffffff;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  box-shadow:
    0 12px 26px rgba(37, 99, 235, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.auth-card .auth-submit-btn:hover:not(:disabled),
.auth-card #loginBtn:hover:not(:disabled),
.auth-card #signupBtn:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow:
    0 16px 30px rgba(37, 99, 235, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.auth-card .auth-submit-btn:disabled,
.auth-card #loginBtn:disabled,
.auth-card #signupBtn:disabled,
.auth-card .google-auth-btn:disabled {
  opacity: 0.64;
  cursor: not-allowed;
  transform: none;
}

.auth-card .google-auth-btn {
  display: inline-flex;
  width: 100%;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  margin: 0;
  border: 1px solid rgba(148, 163, 184, 0.54);
  border-radius: 8px;
  padding: 0.74rem 1rem;
  background: rgba(255, 255, 255, 0.94);
  color: #1f2937;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.07);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.dark-mode .auth-card .google-auth-btn {
  border-color: rgba(96, 165, 250, 0.22);
  background: rgba(15, 23, 42, 0.78);
  color: #f8fafc;
  box-shadow: none;
}

.auth-card .google-auth-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(59, 130, 246, 0.42);
  box-shadow: 0 12px 24px rgba(59, 130, 246, 0.12);
}

.divider {
  position: relative;
  margin: 1.2rem 0;
  text-align: center;
  color: var(--secondary-text-color);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.divider::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(148, 163, 184, 0.36);
}

.divider span {
  position: relative;
  padding: 0 0.75rem;
  background: rgba(255, 255, 255, 0.94);
}

.dark-mode .divider span {
  background: rgba(8, 20, 42, 0.96);
}

.auth-inline-action {
  margin-top: 0.85rem;
  text-align: center;
}

.auth-card a {
  color: var(--primary-color);
  font-weight: 700;
  text-decoration: none;
}

.auth-card a:hover {
  text-decoration: none;
}

.signup-link,
.login-link,
.auth-footnote {
  color: var(--secondary-text-color);
  text-align: center;
  font-size: 0.95rem;
}

.auth-footnote {
  margin: 0.95rem 0 0;
  font-size: 0.86rem;
  line-height: 1.55;
}

.password-hint {
  margin-top: 0.38rem;
  color: var(--secondary-text-color);
  font-size: 0.78rem;
}

.error,
.success,
.redirect-info,
.loading {
  margin-bottom: 1rem;
  border-radius: 8px;
  padding: 0.72rem 0.9rem;
  font-size: 0.86rem;
  line-height: 1.5;
}

.error {
  display: none;
  border: 1px solid rgba(239, 68, 68, 0.32);
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.dark-mode .error {
  color: #fca5a5;
}

.success {
  display: none;
  border: 1px solid rgba(34, 197, 94, 0.3);
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
}

.dark-mode .success {
  color: #86efac;
}

.redirect-info {
  display: none;
  border: 1px solid rgba(59, 130, 246, 0.22);
  border-left: 4px solid var(--primary-color);
  background: rgba(59, 130, 246, 0.1);
  color: var(--secondary-text-color);
}

.loading {
  display: none;
  color: var(--primary-color);
  text-align: center;
  font-weight: 700;
}

.error.show,
.success.show,
.redirect-info.show,
.loading.show {
  display: block;
}

@keyframes authFadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-visual,
  .auth-card {
    animation: none;
  }

  .auth-card .auth-submit-btn,
  .auth-card #loginBtn,
  .auth-card #signupBtn,
  .auth-card .google-auth-btn {
    transition: none;
  }
}

@media (max-width: 980px) {
  .auth-container {
    grid-template-columns: 1fr;
    align-items: start;
    min-height: auto;
    gap: 1.15rem;
    padding-top: 0;
  }

  .auth-visual,
  .auth-card {
    max-width: 680px;
    justify-self: center;
    width: 100%;
  }

  .auth-card {
    order: 1;
  }

  .auth-visual {
    order: 2;
    gap: 0.8rem;
  }

  .auth-visual h1 {
    max-width: 16ch;
  }
}

@media (max-width: 700px) {
  .auth-page main {
    padding-top: calc(var(--header-height) + 0.75rem);
    padding-bottom: 1.5rem;
  }

  .auth-container {
    gap: 1.15rem;
    padding-top: 0;
  }

  .auth-visual {
    order: 2;
  }

  .auth-card {
    order: 1;
  }

  .auth-visual h1 {
    font-size: clamp(1.35rem, 7.2vw, 2rem);
  }

  .auth-visual-card {
    grid-template-columns: 1fr;
    padding: 0.9rem;
  }

  .auth-constellation {
    width: min(100%, 260px);
    justify-self: center;
  }

  .auth-card {
    padding: 1.1rem;
  }

  .auth-card .form-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .auth-domain-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .auth-domain-pill {
    justify-content: center;
    font-size: 0.78rem;
  }

  .auth-tabs {
    margin-bottom: 1rem;
  }
}