/* ===== ADMIN LOGIN TERMINAL DESIGN ===== */
/* Terminal/Console-inspired split-screen login design */
/* Uses centralized color palette, spacing system, and typography rules */

/* ===== TERMINAL LOGIN CONTAINER ===== */
.admin-login-body {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
  margin: 0;
  overflow: hidden;
  position: relative;
  font-family: 'Montserrat', sans-serif;
}

.admin-login-container {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: stretch;
}

/* ===== TERMINAL SPLIT LAYOUT ===== */
.admin-login-card {
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
  backdrop-filter: none;
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: stretch;
}

/* ===== LEFT TERMINAL SIDE - BRANDING ===== */
.admin-login-header {
  width: 40%;
  background: linear-gradient(135deg, var(--color-blue-darkest), var(--color-blue-darker));
  border-right: 2px solid var(--color-green-medium);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

.admin-login-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    color-mix(in srgb, var(--green-1) 3%, transparent) 2px,
    color-mix(in srgb, var(--green-1) 3%, transparent) 4px
  );
  pointer-events: none;
  animation: terminal-scan-lines 2s linear infinite;
}

@keyframes terminal-scan-lines {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

.terminal-prompt {
  font-family: 'Domine', serif;
  font-size: 0.9rem;
  color: var(--color-green-light);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
}

.terminal-prompt::before {
  content: 'admin@yunfx:~$ ';
  color: var(--color-yellow-light);
  margin-right: var(--space-xs);
}

.terminal-prompt::after {
  content: '█';
  color: var(--color-green-light);
  animation: terminal-cursor-blink 1s infinite;
  margin-left: var(--space-xs);
}

@keyframes terminal-cursor-blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.admin-logo-container {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: var(--space-md);
}

.admin-logo {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-green-medium);
  box-shadow: 0 0 20px color-mix(in srgb, var(--green-1) 30%, transparent);
  transition: all var(--transition-normal);
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  padding: var(--space-xs);
  margin-right: var(--space-md);
}

.admin-logo:hover {
  box-shadow: 0 0 30px color-mix(in srgb, var(--green-1) 50%, transparent);
  border-color: var(--color-green-light);
}

.admin-logo-scanner {
  display: none; /* Removed for cleaner terminal look */
}

.admin-login-title {
  font-family: 'Ubuntu', sans-serif;
  font-weight: 400;
  font-style: oblique;
  font-size: 2.5rem;
  color: var(--text-primary);
  margin: 0;
  text-shadow: 0 0 10px color-mix(in srgb, var(--yellow-1) 30%, transparent);
  line-height: 1.2;
}

.admin-login-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  color: var(--color-green-light);
  margin: var(--space-xs) 0 var(--space-lg) 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.terminal-output {
  font-family: 'Domine', serif;
  font-size: 0.8rem;
  color: var(--color-blue-light);
  line-height: 1.4;
  margin-top: var(--space-lg);
  opacity: 0.7;
}

.terminal-output .line {
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
}

.terminal-output .line::before {
  content: '> ';
  color: var(--color-green-medium);
  margin-right: var(--space-xs);
}

.terminal-status {
  color: var(--color-yellow-light);
  font-weight: 400;
}

/* ===== RIGHT FORM SIDE ===== */
.admin-login-body {
  width: 60%;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  padding: var(--space-lg) var(--space-lg) calc(var(--space-lg) + 80px) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 100vh;
  box-sizing: border-box;
}

.admin-login-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    color-mix(in srgb, var(--green-2) 5%, transparent) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.terminal-form-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.terminal-form-title {
  font-family: 'Ubuntu', sans-serif;
  font-weight: 400;
  font-style: oblique;
  font-size: 1.8rem;
  color: var(--text-primary);
  margin: 0 0 var(--space-xs) 0;
}

.terminal-form-subtitle {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.admin-login-form {
  width: 100%;
  max-width: 400px;
  margin: 0;
}

.admin-form-group {
  margin-bottom: var(--space-md);
  position: relative;
}

.admin-form-group:last-child {
  margin-bottom: 0;
}

.admin-form-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  font-size: 0.9rem;
}

.admin-form-label::before {
  content: '$ ';
  color: var(--color-green-medium);
  margin-right: var(--space-xs);
  font-family: 'Domine', serif;
}

.admin-form-control {
  background: linear-gradient(135deg, var(--bg-primary), var(--color-blue-darkest));
  border: 1px solid var(--color-blue-medium);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  padding: var(--space-md) var(--space-lg);
  font-family: 'Domine', serif;
  font-weight: 400;
  width: 100%;
  font-size: 1rem;
  transition: all var(--transition-normal);
  box-shadow: inset 0 2px 4px color-mix(in srgb, var(--blue-5) 20%, transparent);
  letter-spacing: 1px;
}

.admin-form-control:focus {
  outline: none;
  border-color: var(--color-green-light);
  background: linear-gradient(135deg, var(--color-blue-darkest), var(--bg-primary));
  box-shadow: 
    0 0 0 2px color-mix(in srgb, var(--green-1) 30%, transparent),
    inset 0 2px 4px color-mix(in srgb, var(--blue-5) 20%, transparent),
    0 0 20px color-mix(in srgb, var(--green-1) 10%, transparent);
  transform: translateY(-1px);
}

.admin-form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
  font-style: italic;
}

/* ===== TERMINAL PASSWORD CONTAINER ===== */
.admin-password-container {
  position: relative;
  display: flex;
  align-items: center;
}

.admin-password-toggle {
  position: absolute;
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-blue-light);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
}

.admin-password-toggle:hover {
  color: var(--color-green-light);
  background: color-mix(in srgb, var(--green-1) 10%, transparent);
  transform: scale(1.1);
}

.admin-password-toggle:focus {
  outline: 1px solid var(--color-green-medium);
  outline-offset: 2px;
}

/* ===== TERMINAL SUBMIT BUTTON ===== */
.admin-login-submit {
  width: 100%;
  position: relative;
  overflow: hidden;
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  font-size: 1rem;
  font-weight: 400;
  background: linear-gradient(135deg, var(--color-green-dark), var(--color-green-medium));
  border: 1px solid var(--color-green-light);
  color: var(--text-primary);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.admin-login-submit::before {
  content: '> ';
  color: var(--color-yellow-light);
  margin-right: var(--space-xs);
  font-family: 'Domine', serif;
}

.admin-login-submit:hover {
  background: linear-gradient(135deg, var(--color-green-medium), var(--color-green-light));
  border-color: var(--color-yellow-light);
  box-shadow: 0 0 20px color-mix(in srgb, var(--green-1) 40%, transparent);
  transform: translateY(-2px);
}

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

.admin-login-submit .btn-loading {
  display: none;
}

.admin-login-submit.loading .btn-text {
  display: none;
}

.admin-login-submit.loading .btn-loading {
  display: inline-flex;
  align-items: center;
}

.admin-login-submit.loading .btn-loading i {
  animation: terminal-spin 1s linear infinite;
  margin-right: var(--space-xs);
}

@keyframes terminal-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ===== TERMINAL ALERTS ===== */
.admin-alert {
  padding: var(--space-md);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-md);
  border: 1px solid;
  font-family: 'Domine', serif;
  font-weight: 400;
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  position: relative;
}

.admin-alert::before {
  content: '[SYSTEM] ';
  color: var(--color-yellow-light);
  margin-right: var(--space-xs);
  font-weight: 400;
}

.admin-alert-success {
  background: linear-gradient(135deg, var(--color-green-darkest), var(--color-blue-darkest));
  border-color: var(--color-green-medium);
  color: var(--color-green-light);
}

.admin-alert-danger {
  background: linear-gradient(135deg, var(--color-red-darkest), var(--color-blue-darkest));
  border-color: var(--color-red-medium);
  color: var(--color-red-light);
}

.admin-alert-warning {
  background: linear-gradient(135deg, var(--color-yellow-darkest), var(--color-blue-darkest));
  border-color: var(--color-yellow-medium);
  color: var(--color-yellow-light);
}

.admin-alert-info {
  background: linear-gradient(135deg, var(--color-blue-darkest), var(--color-green-darkest));
  border-color: var(--color-blue-medium);
  color: var(--color-blue-light);
}

/* ===== TURNSTILE CAPTCHA ===== */
.cf-turnstile {
  display: flex;
  justify-content: center;
  margin: var(--space-md) 0;
}

.turnstile-error {
  display: none;
}

/* ===== TERMINAL FOOTER ===== */
.admin-login-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  padding: var(--space-md);
  background: linear-gradient(135deg, var(--color-blue-darkest), var(--bg-primary));
  border-top: 1px solid var(--color-green-dark);
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
}

.admin-login-copyright {
  font-family: 'Domine', serif;
  font-weight: 400;
  color: var(--color-blue-light);
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.4;
  opacity: 0.8;
}

.admin-login-copyright::before {
  content: '© ';
  color: var(--color-green-medium);
}

.admin-login-copyright small {
  font-size: 0.7rem;
  opacity: 0.6;
  display: block;
  margin-top: var(--space-xs);
}

/* ===== BACKGROUND MATRIX EFFECT ===== */
.admin-login-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.1;
}

.admin-bg-grid {
  display: none; /* Replaced with scan lines */
}

.admin-bg-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--color-green-light);
  border-radius: 50%;
  opacity: 0.4;
}

.particle:nth-child(1) {
  top: 15%;
  left: 5%;
  animation: terminal-particle-drift 8s ease-in-out infinite;
}

.particle:nth-child(2) {
  top: 70%;
  left: 85%;
  animation: terminal-particle-drift 12s ease-in-out infinite reverse;
}

.particle:nth-child(3) {
  top: 40%;
  left: 75%;
  animation: terminal-particle-drift 10s ease-in-out infinite;
}

.particle:nth-child(4) {
  top: 85%;
  left: 15%;
  animation: terminal-particle-drift 14s ease-in-out infinite reverse;
}

.particle:nth-child(5) {
  top: 25%;
  left: 45%;
  animation: terminal-particle-drift 6s ease-in-out infinite;
}

@keyframes terminal-particle-drift {
  0%, 100% { transform: translateY(0) translateX(0) scale(1); }
  25% { transform: translateY(-30px) translateX(20px) scale(1.2); }
  50% { transform: translateY(0) translateX(40px) scale(0.8); }
  75% { transform: translateY(30px) translateX(20px) scale(1.1); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
  .admin-login-card {
    flex-direction: column;
  }
  
  .admin-login-header {
    width: 100%;
    height: 40vh;
    border-right: none;
    border-bottom: 2px solid var(--color-green-medium);
    padding: var(--space-md);
  }
  
  .admin-login-body {
    width: 100%;
    height: calc(60vh - 60px);
    padding: var(--space-md) var(--space-md) calc(var(--space-md) + 60px) var(--space-md);
    min-height: calc(60vh - 60px);
  }
  
  .admin-login-title {
    font-size: 2rem;
  }
  
  .terminal-form-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 576px) {
  .admin-login-header {
    padding: var(--space-sm);
    height: 35vh;
  }
  
  .admin-login-body {
    height: calc(65vh - 60px);
    padding: var(--space-sm) var(--space-sm) calc(var(--space-sm) + 60px) var(--space-sm);
    min-height: calc(65vh - 60px);
  }
  
  .admin-login-title {
    font-size: 1.5rem;
  }
  
  .admin-logo {
    width: 40px;
    height: 40px;
    margin-right: var(--space-sm);
  }
  
  .admin-form-control {
    padding: var(--space-sm) var(--space-md);
  }
  
  .admin-login-submit {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
  }
  
  .terminal-output {
    display: none; /* Hide on mobile for space */
  }
  
  .admin-login-footer {
    height: 50px;
    padding: var(--space-sm);
  }
}

@media (max-width: 400px) {
  .admin-form-control {
    padding: var(--space-xs) var(--space-sm);
  }
  
  .admin-login-submit {
    padding: var(--space-xs) var(--space-sm);
  }
  
  .admin-login-title {
    font-size: 1.2rem;
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  .terminal-scan-lines,
  .terminal-cursor-blink,
  .terminal-particle-drift,
  .terminal-spin {
    animation: none;
  }
  
  .admin-logo,
  .admin-form-control,
  .admin-password-toggle,
  .admin-login-submit {
    transition: none;
  }
  
  .terminal-prompt::after {
    opacity: 1;
  }
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
  .admin-login-header {
    border-right-width: 4px;
  }
  
  .admin-form-control {
    border-width: 2px;
  }
  
  .admin-form-control:focus {
    box-shadow: 0 0 0 3px var(--color-green-light);
  }
  
  .admin-login-submit {
    border-width: 2px;
  }
}

/* ===== FOCUS STATES FOR KEYBOARD NAVIGATION ===== */
.admin-form-control:focus-visible,
.admin-password-toggle:focus-visible,
.admin-login-submit:focus-visible {
  outline: 2px solid var(--color-green-light);
  outline-offset: 2px;
}

/* ===== FORM VALIDATION STATES ===== */
.admin-form-group.has-error .admin-form-control {
  border-color: var(--color-red-medium);
  background: linear-gradient(135deg, var(--color-red-darkest), var(--bg-primary));
}

.admin-form-group.has-error .admin-form-control:focus {
  border-color: var(--color-red-light);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--red-1) 30%, transparent);
}

.admin-form-group.has-success .admin-form-control {
  border-color: var(--color-green-medium);
  background: linear-gradient(135deg, var(--color-green-darkest), var(--bg-primary));
}

.admin-form-group.has-success .admin-form-control:focus {
  border-color: var(--color-green-light);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--green-1) 30%, transparent);
}

.field-error {
  font-family: 'Domine', serif;
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--color-red-light);
  margin-top: var(--space-xs);
  display: flex;
  align-items: center;
}

.field-error::before {
  content: '[ERROR] ';
  color: var(--color-red-medium);
  margin-right: var(--space-xs);
}

/* ===== SCREEN READER ONLY CONTENT ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== PRINT STYLES ===== */
@media print {
  .admin-login-bg,
  .admin-login-header::before,
  .terminal-output {
    display: none;
  }
  
  .admin-login-card {
    box-shadow: none;
    border: 1px solid var(--color-blue-darkest);
    flex-direction: column;
  }
  
  .admin-login-header,
  .admin-login-body {
    width: 100%;
  }
  
  .admin-login-footer {
    position: relative;
    height: auto;
    margin-top: var(--space-lg);
    backdrop-filter: none;
  }
}