/* Air Pollution Monitoring App - Two-Column Layout */

:root {
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow-color: rgba(0, 0, 0, 0.1);
  
  /* Brand Colors */
  --neon-pink: #ff3b82;
  --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Dark theme colors */
  --dark-bg: #1a1a2e;
  --dark-card: #16213e;
  --dark-text: #ffffff;
  
  /* Spacing */
  --border-radius: 12px;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

/* Dark Mode Colors */
[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f172a;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #475569;
  --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: all 0.3s ease;
  overflow-x: hidden; /* Only hide horizontal scroll */
  min-height: 100vh;
}

/* Main Login Container */
.login-container {
  display: flex !important;
  min-height: 100vh !important;
  width: 100% !important;
  position: relative;
}

/* Left Side - Purple with Neon Circle */
/* Neon border for left column */
.login-left {
  flex: 1 1 50%;
  background: var(--gradient-purple);
  box-shadow: 0 0 0 4px var(--neon-pink), 0 0 40px 0 var(--neon-pink);
  border-radius: 18px 0 0 18px;
  position: relative;
  overflow: hidden;
  width: 50%;
  min-width: 0;
  min-height: 100vh;
  height: 100vh;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

[data-theme="dark"] .login-left {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.login-left::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

/* Ensure .login-left and its content fill the column */
.login-left {
  position: relative;
  display: flex;
  align-items: stretch;
}

/* Air Quality Image - Ensure GIF fills left column completely */
.air-quality-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.air-quality-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
}

/* Left Side Content */
.left-content {
  text-align: center;
  color: white;
  position: relative;
  z-index: 2;
}

.left-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.left-subtitle {
  font-size: 1.125rem;
  opacity: 0.9;
  font-weight: 400;
}

/* Right Side - Form */
.login-right {
  flex: 1 1 50%;
  width: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  position: relative;
  overflow-y: auto; /* Allow vertical scroll if needed */
  min-height: 100vh;
  border-radius: 0 18px 18px 0;
}

[data-theme="dark"] .login-right {
  background: var(--dark-card);
}

.form-container {
  width: 100%;
  max-width: 400px;
  position: relative;
  margin: auto;
  padding: 0.5rem 0; /* Giảm padding để tiết kiệm không gian */
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center; /* Center content vertically */
}

/* Form Header */
.form-header {
  text-align: left;
  margin-bottom: 1.2rem;
}

.brand-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem; /* Giảm margin */
  gap: 0.5rem;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--neon-pink);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: white;
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.brand-text p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.welcome-text h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.welcome-text p {
  font-size: 1rem;
  color: var(--text-muted);
}

/* Auth form heading/label color overrides (override inline white) */
.auth-form-wrapper h3.card-title,
.auth-form-wrapper .card-title {
  color: var(--text-primary) !important; /* respects [data-theme] */
  font-weight: 700 !important;
}

.auth-form-wrapper .card-category,
.auth-form-wrapper .text-muted {
  color: var(--text-secondary) !important;
}

/* Override any .text-white used inside auth forms (templates sometimes add this inline) */
.auth-form-wrapper .text-white,
.auth-form-wrapper label.text-white {
  color: var(--text-primary) !important;
}

/* Ensure regular labels and checkbox labels inside auth forms use theme-aware colors */
.auth-form-wrapper label,
.auth-form-wrapper .form-label,
.auth-form-wrapper .form-check-label {
  color: var(--text-primary) !important;
}

/* Theme Toggle */
.theme-toggle {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: transparent;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 1000;
}

.theme-toggle:hover {
  border-color: var(--neon-pink);
  background: rgba(255, 59, 130, 0.1);
}

.theme-toggle i {
  font-size: 1.125rem;
  color: var(--neon-pink) !important;
}

/* Đảm bảo SVG cũng có màu hồng */
.theme-toggle svg {
  font-size: 1.125rem;
  color: var(--neon-pink) !important;
  fill: var(--neon-pink) !important;
}

.theme-toggle i,
.theme-toggle svg {
  transition: all 0.3s ease;
}

/* Icon visibility: ensure only one icon shows. Use !important to override any inline style toggles. */
.theme-toggle .fa-moon { display: none !important; }
.theme-toggle .fa-sun { display: inline-block !important; }
.theme-toggle.active .fa-moon { display: inline-block !important; }
.theme-toggle.active .fa-sun { display: none !important; }

/* Form Styles */
.form-group {
  margin-bottom: 1rem; /* Giảm margin để tiết kiệm không gian */
  position: relative;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem !important;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
  outline: none;
}

/* Special padding for password fields to avoid overlap with toggle button */
.form-group .form-control[type="password"],
.form-group .form-control[type="text"] {
  padding-right: 3.5rem !important;
}

.form-control:focus {
  border-color: var(--neon-pink) !important;
  background: var(--bg-card) !important;
  box-shadow: 0 0 0 3px rgba(255, 59, 130, 0.1) !important;
  color: var(--text-primary) !important;
}

.form-control::placeholder {
  color: var(--text-muted) !important;
}

/* Specific fix for light mode text visibility */
[data-theme="light"] .form-control {
  color: #1e293b !important;
}

[data-theme="light"] .form-control:focus {
  color: #1e293b !important;
}

/* Light-theme: make input-inline wrappers have a visible outer border and subtle shadow */
[data-theme="light"] .input-inline {
  background: #ffffff !important;
  border: 1px solid var(--border-color) !important;
  box-shadow: 0 6px 18px rgba(16,24,40,0.06) !important;
  color: var(--text-primary) !important;
}

[data-theme="light"] .input-inline .form-control {
  background: transparent !important;
  color: var(--text-primary) !important;
}

[data-theme="light"] .input-inline .input-left,
[data-theme="light"] .input-inline .input-icon {
  color: var(--neon-pink) !important;
}

[data-theme="light"] .input-inline:focus-within {
  border-color: var(--neon-pink) !important;
  box-shadow: 0 10px 30px rgba(255,59,130,0.12) !important;
}

/* Input Icons */
.input-icon {
  position: absolute;
  left: 1rem;
  top: 2.5rem;
  color: var(--text-muted);
  transition: all 0.3s ease;
}

.form-control:focus + .input-icon {
  color: var(--neon-pink);
}

/* Password Toggle */
.password-toggle {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease;
  z-index: 10;
  /* remove margin-top which caused vertical shift */
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  padding: 0;
}

/* Keep the button visually stable on hover (no translate/scale that moves layout) */
.password-toggle:hover {
  color: var(--neon-pink);
  background: rgba(255, 59, 130, 0.06);
}

.password-toggle:focus {
  outline: none;
  color: var(--neon-pink);
}

.password-toggle:active {
  background: rgba(255, 59, 130, 0.12);
}

/* Ensure the eye icon itself does not intercept pointer events and stays centered */
.password-toggle i,
.password-toggle svg {
  pointer-events: none;
  font-size: 1.05rem;
  color: inherit;
}
/* High-specificity fix: ensure password toggle stays vertically centered and ignore competing .btn styles */
.auth-form-wrapper .input-inline .password-toggle,
.auth-form-wrapper .password-toggle,
.input-inline .password-toggle {
  /* reset margin from other button rules */
  margin: 0 !important;
  padding: 0 !important;
  top: 50% !important;
  right: 0.5rem !important;
  transform: translateY(-50%) !important;
  line-height: 1 !important;
  vertical-align: middle !important;
  width: 40px !important;
  height: 40px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* Also force hover state to not change layout: only color/background allowed */
.auth-form-wrapper .password-toggle:hover,
.input-inline .password-toggle:hover {
  transform: translateY(-50%) !important;
  margin: 0 !important;
}

/* If any global .btn rules apply large padding, ensure the inline icon button doesn't inherit them */
.auth-form-wrapper .password-toggle.btn,
.auth-form-wrapper .password-toggle.btn-link,
.auth-form-wrapper .password-toggle.btn:focus {
  padding: 0 !important;
  border: none !important;
  box-shadow: none !important;
}

/* Ensure the eye icon remains visible in light theme even if inherited color rules exist */
[data-theme="light"] .auth-form-wrapper .password-toggle i,
[data-theme="light"] .input-inline .password-toggle i {
  color: #1e293b !important;
}

/* Light-theme: ensure eye icon is visible (dark color) */
[data-theme="light"] .password-toggle {
  color: #1e293b !important;
}

[data-theme="light"] .password-toggle:hover {
  color: var(--neon-pink) !important;
}

.password-toggle i,
.password-toggle svg {
  font-size: 1rem;
  pointer-events: none;
  transition: all 0.2s ease;
}

/* Checkbox and Links */
.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-check-input {
  width: 18px !important;
  height: 18px !important;
  border: 2px solid var(--border-color) !important;
  border-radius: 4px !important;
  background: transparent !important;
  cursor: pointer !important;
  position: relative !important;
  transition: all 0.3s ease !important;
  margin: 0 !important;
  flex-shrink: 0 !important;
  appearance: none !important;
  -webkit-appearance: none !important;
}

.form-check-input:checked {
  background: var(--neon-pink) !important;
  border-color: var(--neon-pink) !important;
}

.form-check-input:checked::after {
  content: '✓' !important;
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  color: white !important;
  font-size: 0.75rem !important;
  font-weight: bold !important;
}

.form-check-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.forgot-link {
  color: var(--neon-pink);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.forgot-link:hover {
  text-decoration: underline;
}

/* Submit Button */
.btn-submit {
  display: block;
  margin: 0 auto 1.5rem auto; /* center and provide bottom spacing */
  padding: 0.95rem 1.25rem;
  background: var(--neon-pink);
  color: #fff;
  border: none;
  border-radius: calc(var(--border-radius) - 2px);
  font-size: 1.025rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
  max-width: 520px;
  width: 60%;
  min-width: 220px;
  box-shadow: 0 8px 20px rgba(255,59,130,0.18);
}

.btn-submit:hover {
  background: #e91e63;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 59, 130, 0.36);
}

.btn-submit:active {
  transform: translateY(0);
}

/* Footer Link */
.form-footer {
  text-align: center;
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.form-footer p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin: 0;
}

/* Compatibility: older templates used .auth-footer-links */
.auth-form-wrapper .auth-footer-links, .auth-form-footer, .auth-footer-links {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.auth-form-wrapper .auth-footer-links a, .auth-form-footer a, .auth-footer-links a {
  color: var(--neon-pink);
  font-weight: 600;
}

/* Optimizations for container and form */
.form-container .auth-form {
  display: flex;
  flex-direction: column;
}

.signup-link {
  color: var(--neon-pink);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.signup-link:hover {
  text-decoration: underline;
}

/* Alert Styles */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  border: 1px solid;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Password rules list styling (used on reset/register pages) */
.password-rules {
  width: 100%;
  max-width: 420px;
  margin: 0.75rem auto 1.25rem auto; /* center and add breathing room */
  padding: 0.5rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem; /* vertical spacing between rules */
  align-items: flex-start;
}

.password-rules .rule {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.8rem; /* space between icon and text */
  color: var(--text-secondary);
  font-size: 1.05rem; /* slightly larger for readability */
  line-height: 1.25;
}

.password-rules .rule i {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  color: var(--text-muted);
}

.password-rules .rule.rule-valid {
  color: #bff3e0; /* soft green text in dark mode */
}

.password-rules .rule.rule-valid i {
  color: #00d4aa; /* neon green accent for check */
}

.password-rules .rule.rule-invalid {
  color: var(--text-secondary);
}

.password-rules .rule.rule-invalid i {
  color: #fda4af; /* soft pink for invalid */
}

/* Ensure rules contrast in light theme */
[data-theme="light"] .password-rules .rule {
  color: #334155; /* darker text for light bg */
}

[data-theme="light"] .password-rules .rule i {
  color: #9aa6b2;
}

[data-theme="light"] .password-rules .rule.rule-valid i {
  color: #059669; /* green for valid in light theme */
}

[data-theme="light"] .password-rules .rule.rule-invalid i {
  color: #ef4444; /* red for invalid in light theme */
}


.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.2);
  color: #dc2626;
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
  color: #2563eb;
}

[data-theme="dark"] .alert-info {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

/* Responsive Design */
@media (max-width: 768px) {
  .login-container {
    flex-direction: column;
  }
  
  .login-left {
    min-height: 40vh;
    padding: 2rem;
  }
  
  .air-quality-image-wrapper {
    width: 100%;
    height: 100%;
  }
  
  .left-title {
    font-size: 2rem;
  }
  
  .login-right {
    min-height: 60vh;
    padding: 1.5rem;
    overflow-y: auto;
  }
  
  .form-container {
    padding: 0.5rem 0;
  }
  
  .form-group {
    margin-bottom: 1.25rem;
  }
  
  .theme-toggle {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .login-left {
    padding: 1.5rem;
  }
  
  .login-right {
    padding: 1rem;
    overflow-y: auto;
    min-height: 100vh;
  }
  
  .form-container {
    padding: 0.5rem 0;
    max-width: 100%;
  }
  
  .form-group {
    margin-bottom: 0.8rem;
  }
  
  .form-header {
    margin-bottom: 1rem;
  }
  
  .air-quality-image-wrapper {
    width: 100%;
    height: 100%;
  }
  
  .left-title {
    font-size: 1.75rem;
  }
}

/* Page-specific fixes: remove vertical scrollbar for auth forms where full-screen layout is used */
#rightColumn .auth-form-wrapper {
  /* Keep content centered but hide the browser vertical scrollbar on the right column */
  overflow-y: hidden !important;
}

/* Ensure password toggle is perfectly centered vertically inside input wrappers across pages */
.auth-form-wrapper .password-toggle,
.auth-form-wrapper .input-inline .password-toggle {
  top: 70% !important;
  transform: translateY(-50%) !important;
}

/* Desktop-only: visually remove the page scrollbar for register page while keeping internal scrolling if needed */
@media (min-width: 992px) {
  .full-page.register-page {
    height: 100vh;
    overflow: hidden; /* remove outer scrollbar */
  }

  /* Allow the right column to scroll internally but hide the scrollbar visually */
  #rightColumn .auth-form-wrapper {
    overflow-y: auto !important;
    height: 100vh;
    -ms-overflow-style: none; /* IE and Edge */
    scrollbar-width: none; /* Firefox */
  }

  #rightColumn .auth-form-wrapper::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
    width: 0px;
    height: 0px;
  }
}

/* Optimizations for register page with more fields */
@media (max-height: 800px) {
  .form-container {
    padding: 0.25rem 0;
    max-height: 100vh;
  }
  
  .form-group {
    margin-bottom: 0.7rem;
  }
  
  .form-header {
    margin-bottom: 0.8rem;
  }
  
  .brand-header {
    margin-bottom: 0.8rem;
  }
  
  .welcome-text h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
  }
  
  .welcome-text p {
    font-size: 0.85rem;
  }
}

/* Multi-step form styles */
.form-step {
  transition: all 0.3s ease;
}

.form-step .form-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.form-step.fade-in {
  animation: fadeIn 0.3s ease;
}

.form-step.fade-out {
  animation: fadeOut 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* OTP input styling */
input[type="text"]#otp {
  text-align: center;
  font-size: 1.2rem;
  letter-spacing: 0.2rem;
  font-weight: 600;
}

/* OTP Timer styling */
.otp-timer {
  text-align: center;
  margin: 1rem 0;
  padding: 0.75rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--border-radius);
  color: #2563eb;
  font-size: 0.9rem;
  font-weight: 500;
}

[data-theme="dark"] .otp-timer {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.otp-timer i {
  margin-right: 0.5rem;
}

/* Resend OTP section */
.resend-otp {
  text-align: center;
  margin-top: 1rem;
}

.resend-otp p {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.btn-link {
  background: none;
  border: none;
  color: var(--neon-pink);
  text-decoration: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.btn-link:hover {
  background: rgba(255, 59, 130, 0.1);
  text-decoration: none;
}

.btn-link:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Timer warning state */
.otp-timer.warning {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.2);
  color: #dc2626;
}

[data-theme="dark"] .otp-timer.warning {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* Button loading state */
.btn-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-submit .fa-spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Pulse animation for urgent timer warnings */
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Ensure GIF always fills left column completely */