/* ===================================================================
   SIGN-IN PAGE — Professional split-panel auth layout
   =================================================================== */

/* Inherit design tokens from login-core.css :root */

/* --------------- Layout --------------- */
.signin-page {
  min-height: 100vh;
  display: flex;
  flex-direction: row;
  background: var(--bg-primary);
  font-family: var(--font-body);
  color: var(--text-primary);
}

/* --------------- Brand Panel (Left) --------------- */
.signin-brand {
  flex: 0 0 45%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-3xl) var(--space-2xl);
  background: linear-gradient(135deg, #1C1917 0%, #292524 50%, #3D3632 100%);
  color: #F5F0EB;
  position: relative;
  overflow: hidden;
}

.signin-brand::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(212, 101, 74, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.signin-brand-content {
  position: relative;
  z-index: 1;
  max-width: 400px;
  text-align: center;
}

.signin-brand-logo {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.signin-brand-tagline {
  font-size: var(--text-body-lg);
  color: #C4BAA8;
  margin-bottom: var(--space-2xl);
  line-height: var(--leading-relaxed);
}

.signin-brand-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-2xl) 0;
  text-align: left;
}

.signin-brand-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--text-body);
  color: #C4BAA8;
}

.signin-brand-features li i {
  color: var(--accent-primary);
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.signin-brand-apply {
  margin-top: var(--space-lg);
}

.signin-brand-apply a {
  color: var(--accent-primary);
  text-decoration: none;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  transition: color var(--duration-normal) var(--ease-smooth);
}

.signin-brand-apply a:hover {
  color: var(--accent-secondary);
  text-decoration: underline;
}

/* --------------- Auth Panel (Right) --------------- */
.signin-auth {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-2xl);
  overflow-y: auto;
}

.signin-auth-inner {
  width: 100%;
  max-width: 440px;
}

/* --------------- Theme Toggle --------------- */
.signin-theme-toggle {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--duration-normal) var(--ease-smooth), background var(--duration-normal) var(--ease-smooth);
}

.signin-theme-toggle:hover {
  color: var(--accent-primary);
  background: var(--bg-inset);
}

/* --------------- Section Visibility --------------- */
.signin-section {
  display: none;
}

.signin-section.active {
  display: block;
}

/* --------------- Heading --------------- */
.signin-heading {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: var(--weight-bold);
  margin: 0 0 var(--space-xs) 0;
  letter-spacing: -0.02em;
}

.signin-subheading {
  color: var(--text-secondary);
  font-size: var(--text-body);
  margin: 0 0 var(--space-xl) 0;
  line-height: var(--leading-normal);
}

/* --------------- Form Elements --------------- */
.signin-form-group {
  margin-bottom: var(--space-md);
}

.signin-label {
  display: block;
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.signin-input {
  width: 100%;
  padding: 12px var(--space-md);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--text-body);
  font-family: var(--font-body);
  transition: border-color var(--duration-normal) var(--ease-smooth), box-shadow var(--duration-normal) var(--ease-smooth);
  box-sizing: border-box;
}

.signin-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.15);
}

.signin-input::placeholder {
  color: var(--text-tertiary);
}

/* Password field wrapper */
.signin-password-field {
  position: relative;
}

.signin-password-field .signin-input {
  padding-right: 44px;
}

.signin-password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  font-size: 1rem;
}

.signin-password-toggle:hover {
  color: var(--text-secondary);
}

/* --------------- Buttons --------------- */
.signin-btn {
  width: 100%;
  padding: 14px var(--space-lg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  font-family: var(--font-body);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: background var(--duration-normal) var(--ease-smooth), transform var(--duration-fast) var(--ease-smooth), box-shadow var(--duration-normal) var(--ease-smooth);
  margin-top: var(--space-sm);
}

.signin-btn:active {
  transform: scale(0.98);
}

.signin-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.signin-btn-primary {
  background: var(--accent-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(var(--accent-primary-rgb), 0.3);
}

.signin-btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(var(--accent-primary-rgb), 0.4);
}

/* --------------- Links --------------- */
.signin-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  padding: 0;
}

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

.signin-form-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.signin-footer {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: var(--text-small);
  color: var(--text-secondary);
}

.signin-footer a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: var(--weight-semibold);
  margin-left: 4px;
}

.signin-footer a:hover {
  text-decoration: underline;
}

/* --------------- Back Link --------------- */
.signin-back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  padding: 0;
  margin-bottom: var(--space-lg);
  transition: color var(--duration-normal) var(--ease-smooth);
}

.signin-back-link:hover {
  color: var(--accent-primary);
}

/* --------------- Error / Success Messages --------------- */
.signin-error {
  display: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  font-size: var(--text-small);
  margin-bottom: var(--space-md);
}

html.dark .signin-error,
body.dark .signin-error {
  background: rgba(220, 38, 38, 0.1);
  border-color: rgba(220, 38, 38, 0.3);
  color: #fca5a5;
}

/* --------------- OTP Input --------------- */
.signin-otp-input {
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 0.3em;
  font-weight: var(--weight-bold);
}

/* --------------- Forgot Password Steps --------------- */
.signin-forgot-step {
  display: none;
}

.signin-forgot-step.active {
  display: block;
}

/* --------------- Loading Spinner --------------- */
.signin-btn .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: signin-spin 0.6s linear infinite;
}

.signin-btn.loading .spinner {
  display: inline-block;
}

.signin-btn.loading .btn-text {
  display: none;
}

@keyframes signin-spin {
  to { transform: rotate(360deg); }
}

/* ===================================================================
   RESPONSIVE — Mobile first collapse
   =================================================================== */

@media (max-width: 768px) {
  .signin-page {
    flex-direction: column;
  }

  .signin-brand {
    flex: none;
    padding: var(--space-xl) var(--space-md);
  }

  .signin-brand-features {
    display: none;
  }

  .signin-brand-tagline {
    font-size: var(--text-small);
    margin-bottom: var(--space-md);
  }

  .signin-brand-logo {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
  }

  .signin-brand-apply {
    display: none;
  }

  .signin-auth {
    padding: var(--space-lg) var(--space-md);
  }
}

@media (max-width: 480px) {
  .signin-brand {
    padding: var(--space-md);
  }

  .signin-auth {
    padding: var(--space-md);
  }

  .signin-auth-inner {
    max-width: 100%;
  }
}