/* 
 * FIBA Quiz App - Authentication Pages Styles
 * Styles specific to login, register, and reset password pages
 * Inherits from common.css for base styles
 */

/* ==========================================================================
   1. AUTHENTICATION LAYOUT STYLES
   ========================================================================== */

/* Body layout for auth pages without header */
body:not(:has(.top-header)) {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

/* Fallback for older browsers that don't support :has() */
body.no-header {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

/* Authentication Container */
.container {
  max-width: 450px;
  width: 100%;
  background: var(--card-bg);
  margin: 0 auto;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(255, 102, 0, 0.15), 0 4px 8px var(--shadow-light);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-primary-hover), var(--brand-primary));
  background-size: 200% 100%;
  animation: gradient 3s ease infinite;
}

@keyframes gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ==========================================================================
   2. FORM ELEMENTS
   ========================================================================== */

/* Form Header */
.form-header {
  margin-bottom: 35px;
}

.form-header h1 {
  color: var(--brand-primary);
  margin-bottom: 8px;
  font-size: 28px;
  font-weight: 700;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 16px;
  margin: 0;
  font-weight: 400;
}

/* Auth Form */
.auth-form {
  margin-bottom: 25px;
}

.input-group {
  margin-bottom: 25px;
  text-align: left;
}

.input-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

/* Checkbox Group Styles */
.checkbox-group {
  margin-bottom: 20px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: 0 !important;
  min-height: 24px;
}

.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  width: 0;
  height: 0;
}

.checkmark {
  position: relative;
  display: inline-block;
  width: 20px;
  height: 20px;
  background-color: var(--input-bg);
  border: 2px solid var(--input-border);
  border-radius: 4px;
  transition: border-color 0.3s, background-color 0.3s;
  flex-shrink: 0;
  margin: 0;
  vertical-align: middle;
}

.checkbox-label:hover .checkmark {
  border-color: var(--brand-primary);
}

.checkbox-label input[type="checkbox"]:checked ~ .checkmark {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  border-radius: 1px;
  transform: rotate(45deg);
}

.checkbox-label input[type="checkbox"]:checked ~ .checkmark:after {
  display: block;
}

/* Input Fields */
input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 16px 18px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 16px;
  background-color: var(--input-bg);
  color: var(--text-primary);
  transition: all 0.3s ease;
  box-sizing: border-box;
  font-family: "nunito", sans-serif;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--brand-primary);
  background-color: var(--input-bg);
  box-shadow: 0 0 0 3px rgba(255, 102, 0, 0.1);
  transform: translateY(-1px);
}

input[type="email"]:hover,
input[type="password"]:hover,
input[type="text"]:hover {
  border-color: var(--brand-secondary);
  background-color: var(--input-bg);
}

input::placeholder {
  color: var(--text-muted);
  font-size: 15px;
}

/* Username field validation */
#register-username:valid {
  border-color: var(--color-success);
}

#register-username:invalid:not(:placeholder-shown) {
  border-color: var(--color-danger);
}

/* Input Help Text */
.input-help {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 5px;
  font-style: italic;
}

/* Password Input Container */
.password-input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-container input {
  padding-right: 50px; /* Make space for the toggle button */
}

.password-toggle {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  width: 28px;
  height: 28px;
}

.password-toggle:hover {
  color: var(--text-primary);
  background-color: var(--hover-bg);
}

.password-toggle:focus {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   3. OAUTH SECTION
   ========================================================================== */

.oauth-section {
  margin: 25px 0;
}

.oauth-divider {
  position: relative;
  text-align: center;
  margin: 20px 0;
}

.oauth-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-light);
  z-index: 1;
}

.oauth-divider span {
  background: var(--card-bg);
  padding: 0 15px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  position: relative;
  z-index: 2;
}

.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   4. AUTH LINKS & NAVIGATION
   ========================================================================== */

.auth-links {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  transition: border-color 0.3s ease;
}

.auth-links p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.3s ease;
}

.link-primary {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.link-primary:hover {
  color: var(--brand-primary-hover);
  text-decoration: underline;
}

/* ==========================================================================
   5. LEGACY SUPPORT & FALLBACKS
   ========================================================================== */

/* Legacy Form Support */
form:not(.auth-form) input[type="email"],
form:not(.auth-form) input[type="password"],
form:not(.auth-form) input[type="text"] {
  margin: 8px 0 20px;
}

form:not(.auth-form) button {
  width: 100%;
  padding: 16px 24px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-hover));
  color: white;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
  margin-top: 10px;
}

form:not(.auth-form) button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 102, 0, 0.4);
  background: linear-gradient(135deg, var(--brand-primary-hover), var(--brand-primary-dark));
}

/* Legacy heading support */
.container h1:not(.form-header h1) {
  color: var(--brand-primary);
  margin-bottom: 30px;
  font-size: 28px;
  font-weight: 700;
}

/* Legacy paragraph links */
.container p:not(.auth-links p) {
  margin: 15px 0 5px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.container p:not(.auth-links p) a {
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.container p:not(.auth-links p) a:hover {
  color: var(--brand-primary-hover);
  text-decoration: underline;
}

/* Legacy button support */
.btn-orange,
button:not(.btn-primary):not(.btn-secondary):not(.btn-success):not(.btn-danger):not(.btn-warning):not(.btn-info):not(.oauth-btn) {
  background-color: var(--brand-primary);
  border: none;
  color: white;
  padding: 12px 22px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.25s ease;
}

.btn-orange:hover,
button:not(.btn-primary):not(.btn-secondary):not(.btn-success):not(.btn-danger):not(.btn-warning):not(.btn-info):not(.oauth-btn):hover {
  background-color: var(--brand-primary-hover);
}

/* ==========================================================================
   6. RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 768px) {
  .container {
    padding: 30px 25px;
    margin: 10px;
    border-radius: 12px;
  }
  
  .form-header h1 {
    font-size: 24px;
  }
  
  .oauth-btn {
    padding: 12px 16px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  body:not(:has(.top-header)),
  body.no-header {
    padding: 15px;
  }
  
  .container {
    padding: 25px 20px;
    border-radius: 8px;
  }
  
  .form-header h1 {
    font-size: 22px;
  }
  
  .subtitle {
    font-size: 14px;
  }
  
  input[type="email"],
  input[type="password"],
  input[type="text"] {
    padding: 14px 16px;
    font-size: 16px; /* Prevent zoom on iOS */
  }
}