/*
  auth.css
  Shared auth styles for:
  - /login/
  - /signup/
  - /forgot-password/
  - /update-password/

  Shared base styles are defined first.
  Page-specific differences are controlled by body[data-auth-page="..."].
*/

:root {
  --primary: #000;
  --link-blue: #0052ff;
  --error: #ff4d4d;
  --success: #00c853;
  --bg: #fffdfa;
  --input-bg: #fff;
  --text-main: #1a1a1a;
  --text-muted: rgba(0, 0, 0, 0.5);
  --border: rgba(125, 125, 125, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e11;
    --primary: #fff;
    --input-bg: #1a1a1f;
    --text-main: #fff;
  }
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 16px 0;
  overflow-x: hidden;
  overflow-x: clip;
}

.form-card {
  background: var(--bg);
  border-radius: 24px;
  padding: 3rem 2rem;
  width: 92%;
  max-width: 540px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border);
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}

p {
  font-size: 0.95rem;
  margin-bottom: 2rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.field {
  margin-bottom: 1.2rem;
}

label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 6px;
  text-transform: uppercase;
  opacity: 0.8;
  user-select: none;
}

input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 16px;
  background: var(--input-bg);
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: var(--primary);
}

button {
  padding: 16px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 14px;
  background: var(--primary);
  color: var(--bg);
  cursor: pointer;
  transition: all 0.2s;
}

button:disabled {
  opacity: 0.2;
  cursor: not-allowed;
}

.google-btn {
  width: 100%;
  background: #fff;
  color: #000;
  border: 1px solid var(--border);
  padding: 14px;
  border-radius: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  margin-bottom: 1.5rem;
  transition: background 0.2s;
}

.google-btn:hover {
  background: #f9f9f9;
}

.google-btn img {
  width: 18px;
}

.divider {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.divider:not(:empty)::before {
  margin-right: 1em;
}

.divider:not(:empty)::after {
  margin-left: 1em;
}

.footer-link {
  margin-top: 1.5rem;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-link a {
  color: var(--link-blue);
  text-decoration: none;
  font-weight: 600;
}

.error-text {
  color: var(--error);
  font-size: 12px;
  margin-top: 6px;
  display: none;
  font-weight: 500;
}

/* login, forgot, update */
body[data-auth-page="login"] .form-card,
body[data-auth-page="forgot"] .form-card,
body[data-auth-page="update"] .form-card {
  max-width: 420px;
  text-align: center;
}

body[data-auth-page="login"] .field,
body[data-auth-page="forgot"] .field,
body[data-auth-page="update"] .field {
  text-align: left;
}

body[data-auth-page="login"] button,
body[data-auth-page="forgot"] button,
body[data-auth-page="update"] button {
  width: 100%;
  margin-top: 10px;
}

body[data-auth-page="login"] .divider {
  margin: 1.5rem 0;
}

body[data-auth-page="login"] .error-text,
body[data-auth-page="forgot"] .error-text,
body[data-auth-page="update"] .error-text {
  text-align: left;
}

/* signup */
body[data-auth-page="signup"] .form-card {
  max-width: 500px;
}

body[data-auth-page="signup"] h1,
body[data-auth-page="signup"] p {
  text-align: center;
}

.progress-track {
  width: 100%;
  height: 4px;
  background: rgba(0, 0, 0, 0.05);
  position: absolute;
  top: 0;
  left: 0;
}

.progress-fill {
  height: 100%;
  width: 33.33%;
  background: var(--primary);
  transition: width 0.4s ease;
}

.role-select {
  display: flex;
  gap: 10px;
  margin-bottom: 1.5rem;
}

.role-btn {
  flex: 1;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text-main);
  font-size: 14px;
  padding: 12px;
}

.role-btn.active {
  background: var(--primary);
  color: var(--bg);
  border-color: var(--primary);
}

.agreement {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  margin: 1.5rem 0;
  cursor: pointer;
  line-height: 1.4;
}

.agreement input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  flex-shrink: 0;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 1rem;
}

body[data-auth-page="signup"] button {
  flex: 1;
}

button.alt {
  background: none;
  color: var(--text-main);
  border: 1px solid var(--border);
}

.step {
  display: none;
}

.step.active {
  display: block;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

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

@media (max-width: 540px) {
  body {
    align-items: flex-start;
    padding: 10px 0;
  }

  .form-card {
    width: calc(100% - 20px);
    padding: 1.6rem 1rem;
    border-radius: 18px;
  }

  .actions {
    flex-direction: column;
  }
}