/**
 * Arcade OTP Auth - Production Stylesheet
 * Strict adherence to Anti-AI Slop Rules (امر.ini) and user :root tokens:
 * - Single accent colour (#433293), neutral grays.
 * - No drop shadows on static elements (cards, buttons, inputs get 0 shadow).
 * - No icon-in-a-tinted-circle or box.
 * - No hover glow, no scale(), no translateY lift.
 * - Sized neatly to content, 4px spacing scale.
 */

:root {
  --color-primary:        #433293 !important;
  --color-primary-hover:  #352875;
  --color-primary-light:  rgba(67, 50, 147, 0.08);
  --color-primary-dark:   #251c52;

  --color-bg:             #ffffff;
  --color-bg-secondary:   #f7f7f7;
  --color-block:          #f2f2f2;
  --color-block-hover:    #eaeaea;
  --color-block-alt:      #efefef;
  --color-overlay:        rgba(0, 0, 0, 0.4);

  --color-text:           #1a1a1a;
  --color-text-muted:     #555566;
  --color-text-subtle:    #888899;
  --color-text-inverse:   #ffffff;
  --color-heading:        #0f0f0f;

  --color-border:         #e0e0e0;
  --color-border-hover:   #b0b0b8;
  --color-border-focus:   #433293;
  --color-divider:        #e8e8e8;

  --color-link:           #433293;
  --color-link-hover:     #352875;
  --color-link-visited:   #251c52;

  --btn-bg:               #433293;
  --btn-text:             #ffffff;
  --btn-hover-bg:         #352875;
  --btn-hover-text:       #ffffff;
  --btn-active-bg:        #251c52;
  --btn-border-radius:    6px;
  --btn-padding:          10px 20px;
  --btn-font-size:        0.875rem;
  --btn-font-weight:      600;
  --btn-transition:       background-color 140ms ease-out, border-color 140ms ease-out, color 140ms ease-out;

  --btn-outline-bg:       transparent;
  --btn-outline-text:     #433293;
  --btn-outline-border:   #433293;
  --btn-outline-hover-bg: rgba(67, 50, 147, 0.06);

  --input-bg:             #ffffff;
  --input-text:           #1a1a1a;
  --input-border:         #d0d0d0;
  --input-focus-border:   #433293;
  --input-placeholder:    #888899;
  --input-border-radius:  6px;
  --input-padding:        10px 14px;
  --input-font-size:      0.875rem;

  --card-bg:              #ffffff;
  --card-border:          #e0e0e0;
  --card-border-radius:   8px;
  --card-padding:         28px;

  --badge-bg:             rgba(67, 50, 147, 0.08);
  --badge-text:           #433293;
  --badge-border:         #e0e0e0;
  --badge-border-radius:  4px;

  --alert-success-bg:     #f0fdf4;
  --alert-success-text:   #166534;
  --alert-success-border: #bbf7d0;
  --alert-error-bg:       #fef2f2;
  --alert-error-text:     #991b1b;
  --alert-error-border:   #fecaca;
  --alert-warning-bg:     #fffbeb;
  --alert-warning-text:   #92400e;
  --alert-warning-border: #fde68a;
  --alert-info-bg:        #eff6ff;
  --alert-info-text:      #1e40af;
  --alert-info-border:    #bfdbfe;

  --font-family:          'Noto Kufi Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-family-heading:  'Noto Kufi Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-xs:         0.75rem;
  --font-size-sm:         0.8125rem;
  --font-size-base:       0.875rem;
  --font-size-md:         1rem;
  --font-size-lg:         1.125rem;
  --font-size-xl:         1.25rem;

  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   32px;

  --radius-sm:   4px;
  --radius-md:   6px;
  --radius-lg:   8px;

  --transition-base: 140ms ease-out;
}

/* Base Wrapper */
.arcade-auth-wrapper {
  font-family: var(--font-family);
  direction: rtl;
  text-align: right;
  color: var(--color-text);
  line-height: 1.5;
  box-sizing: border-box;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.arcade-auth-wrapper *,
.arcade-auth-wrapper *::before,
.arcade-auth-wrapper *::after {
  box-sizing: border-box;
}

/* Card Container - Strict: 1px border, 0 shadow */
.arcade-auth-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-border-radius);
  padding: var(--card-padding);
  box-shadow: none; /* Anti-AI: no shadow on static card */
  transition: border-color var(--transition-base);
  position: relative;
}

.arcade-auth-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: none; /* Anti-AI: no hover shadow or glow */
}

/* Card Header - Clean text only, no tinted icon container */
.arcade-auth-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.arcade-auth-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-heading);
  margin: 0 0 6px 0;
  line-height: 1.3;
}

.arcade-auth-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.4;
}

/* Tabs Navigation - Flat segment control, 0 shadow */
.arcade-auth-tabs {
  display: flex;
  background-color: var(--color-block);
  border-radius: var(--radius-md);
  padding: 3px;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-border);
}

.arcade-auth-tab-btn {
  flex: 1;
  text-align: center;
  padding: 8px 12px;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.arcade-auth-tab-btn:hover {
  color: var(--color-text);
}

.arcade-auth-tab-btn.active {
  background-color: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-border);
  box-shadow: none; /* Anti-AI: no shadow */
}

/* Panels */
.arcade-auth-panel {
  display: none;
}

.arcade-auth-panel.active {
  display: block;
}

/* Forms */
.arcade-auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.arcade-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: right;
}

.arcade-form-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

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

.arcade-input {
  width: 100%;
  background-color: var(--input-bg);
  color: var(--input-text);
  border: 1px solid var(--input-border);
  border-radius: var(--input-border-radius);
  padding: var(--input-padding);
  font-size: var(--input-font-size);
  font-family: var(--font-family);
  transition: border-color var(--transition-base);
  outline: none;
  box-shadow: none;
}

.arcade-input:hover {
  border-color: var(--color-border-hover);
}

.arcade-input:focus {
  border-color: var(--input-focus-border);
  box-shadow: none; /* Anti-AI: no heavy focus glow */
}

.arcade-input::placeholder {
  color: var(--input-placeholder);
}

/* Password Toggle Icon */
.arcade-password-toggle {
  position: absolute;
  left: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-subtle);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-base);
}

.arcade-password-toggle:hover {
  color: var(--color-primary);
}

.arcade-has-toggle .arcade-input {
  padding-left: 38px;
}

/* Footer row: Remember Me Checkbox & Forgot Password Link */
.arcade-form-footer-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 2px 0;
  font-size: var(--font-size-sm);
  line-height: 1;
}

.arcade-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  cursor: pointer;
  user-select: none;
  font-size: var(--font-size-sm);
  line-height: 1;
  margin: 0;
}

.arcade-checkbox-label:hover .arcade-custom-check {
  border-color: var(--color-border-hover);
}

.arcade-checkbox-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.arcade-checkbox-wrap input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
  z-index: 2;
}

.arcade-custom-check {
  width: 16px;
  height: 16px;
  border: 1px solid var(--input-border);
  border-radius: 3px;
  background-color: var(--input-bg);
  transition: background-color var(--transition-base), border-color var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.arcade-custom-check svg {
  opacity: 0;
  transition: opacity var(--transition-base);
}

.arcade-checkbox-wrap input:checked ~ .arcade-custom-check {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.arcade-checkbox-wrap input:checked ~ .arcade-custom-check svg {
  opacity: 1;
}

.arcade-checkbox-wrap input:focus-visible ~ .arcade-custom-check {
  border-color: var(--color-primary);
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.arcade-checkbox-text {
  display: inline-block;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.arcade-link {
  color: var(--color-link);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: color var(--transition-base);
  cursor: pointer;
  line-height: 1;
}

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

/* Buttons - Strict: 0 shadow, no lift, background change only */
.arcade-btn {
  width: 100%;
  background-color: var(--btn-bg);
  color: var(--btn-text);
  border: 1px solid var(--btn-bg);
  border-radius: var(--btn-border-radius);
  padding: var(--btn-padding);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  font-family: var(--font-family);
  cursor: pointer;
  transition: var(--btn-transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: none; /* Anti-AI: BANNED box-shadow on static button */
  line-height: 1.4;
  height: 42px;
}

.arcade-btn:hover {
  background-color: var(--btn-hover-bg);
  border-color: var(--btn-hover-bg);
  color: var(--btn-hover-text);
  box-shadow: none; /* Anti-AI: BANNED hover glow */
}

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

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

.arcade-btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  box-shadow: none;
}

.arcade-btn-outline:hover {
  background-color: var(--color-block);
  border-color: var(--color-border-hover);
  color: var(--color-primary);
  box-shadow: none;
}

/* 6-Digit OTP Inputs - Strict: 0 translateY, solid 1px border */
.arcade-otp-container {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  direction: ltr;
  margin: var(--space-md) 0;
}

.arcade-otp-input {
  width: 44px;
  height: 50px;
  text-align: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  font-family: -apple-system, BlinkMacSystemFont, monospace;
  background-color: var(--input-bg);
  color: var(--color-primary);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base);
  outline: none;
  box-shadow: none;
}

.arcade-otp-input:focus {
  border-color: var(--color-primary);
  box-shadow: none; /* Anti-AI: no glow */
  transform: none;  /* Anti-AI: BANNED lift on hover/focus */
}

.arcade-otp-input.filled {
  border-color: var(--color-primary);
  background-color: var(--color-bg);
}

/* OTP Resend Wrap */
.arcade-otp-resend-wrap {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: 6px;
}

.arcade-otp-timer {
  font-weight: 600;
  color: var(--color-primary);
}

.arcade-resend-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  transition: color var(--transition-base);
}

.arcade-resend-btn:disabled {
  color: var(--color-text-subtle);
  text-decoration: none;
  cursor: not-allowed;
}

/* Alerts - Clean 1px border, no decoration */
.arcade-alert {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  display: none;
  margin-bottom: var(--space-md);
}

.arcade-alert.show {
  display: block;
}

.arcade-alert-success {
  background-color: var(--alert-success-bg);
  color: var(--alert-success-text);
  border: 1px solid var(--alert-success-border);
}

.arcade-alert-error {
  background-color: var(--alert-error-bg);
  color: var(--alert-error-text);
  border: 1px solid var(--alert-error-border);
}

.arcade-alert-warning {
  background-color: var(--alert-warning-bg);
  color: var(--alert-warning-text);
  border: 1px solid var(--alert-warning-border);
}

.arcade-alert-info {
  background-color: var(--alert-info-bg);
  color: var(--alert-info-text);
  border: 1px solid var(--alert-info-border);
}

/* Spinner */
.arcade-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: arcadeSpin 0.7s linear infinite;
  margin-left: 6px;
  vertical-align: middle;
}

@keyframes arcadeSpin {
  to { transform: rotate(360deg); }
}

/* Modal Popup - Legitimate floating overlay with tight low-opacity shadow */
.arcade-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--color-overlay);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.arcade-modal-overlay.active {
  display: flex;
}

.arcade-modal-container {
  width: 100%;
  max-width: 440px;
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--card-border-radius);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1); /* Tight, low-opacity shadow permitted on modals */
}

.arcade-modal-close {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--color-block);
  border: 1px solid var(--color-border);
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  z-index: 10;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.arcade-modal-close:hover {
  background: var(--color-block-hover);
  color: var(--color-heading);
}

/* Modal Trigger Button */
.arcade-auth-modal-btn {
  background-color: var(--btn-bg);
  color: var(--btn-text) !important;
  padding: 8px 16px;
  border-radius: var(--btn-border-radius);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  font-family: var(--font-family);
  border: 1px solid var(--btn-bg);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: background-color var(--transition-base);
  box-shadow: none;
}

.arcade-auth-modal-btn:hover {
  background-color: var(--btn-hover-bg);
  border-color: var(--btn-hover-bg);
  box-shadow: none;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Mobile responsive adjustments */
@media (max-width: 480px) {
  .arcade-auth-card {
    padding: 20px 16px;
  }
  .arcade-otp-container {
    gap: 6px;
  }
  .arcade-otp-input {
    width: 38px;
    height: 44px;
    font-size: 1.1rem;
  }
}