/* ==========================================================================
   CoClean Admin Portal - Executive Login Stylesheet
   Stitch "Obsidian Orbit" Design System: Unified Space Grotesk,
   High-contrast Light & Dark Theme Support, Glassmorphism, Fluid Responsiveness.
   ========================================================================== */

/* Page Background & Layout Shell */
.login-body {
  margin: 0;
  padding: 0;
  height: 100vh;
  max-height: 100vh;
  width: 100vw;
  box-sizing: border-box;
  font-family: var(--font-family, 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif);
  background-color: var(--dash-bg, #f8fafc);
  color: var(--text-main, #0f172a);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Ambient Radial Mesh Background Glows */
.login-ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb-1 {
  position: absolute;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 450px;
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.16) 0%, rgba(37, 99, 235, 0.05) 50%, transparent 75%);
  border-radius: 50%;
  filter: blur(60px);
}

.glow-orb-2 {
  position: absolute;
  bottom: -10%;
  right: 10%;
  width: 450px;
  height: 350px;
  background: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
}

body.theme-dark .glow-orb-1 {
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.22) 0%, rgba(37, 99, 235, 0.08) 50%, transparent 75%);
}

body.theme-dark .glow-orb-2 {
  background: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
}

/* Top Floating Bar (Theme Selector) */
.login-topbar {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0;
  box-sizing: border-box;
}

.login-top-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Central Main Authentication Wrapper */
.login-main-container {
  position: relative;
  z-index: 10;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem 0.25rem;
  box-sizing: border-box;
  min-height: 0;
}

/* Executive Auth Card */
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--card-border, #e2e8f0);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 16px 36px -6px rgba(15, 23, 42, 0.12), 0 4px 12px -2px rgba(15, 23, 42, 0.05);
  padding: 1.5rem 1.85rem 1.25rem;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

body.theme-dark .login-card {
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

/* Logo & Header Section */
.login-card-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 1.15rem;
}

.login-card-header .brand-wrapper {
  margin-bottom: 0.65rem;
}

.login-title {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main, #0f172a);
  line-height: 1.2;
}

.login-subtitle {
  margin: 0;
  font-size: 0.74rem;
  color: var(--text-sub, #64748b);
  line-height: 1.35;
  max-width: 320px;
}

/* Alert Banner (Error / Warning / Lockout) */
.login-alert-banner {
  display: none;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-md, 8px);
  font-size: 0.76rem;
  line-height: 1.4;
  margin-bottom: 1.25rem;
  animation: bannerFadeIn 0.2s ease-out;
}

.login-alert-banner.error {
  display: flex;
  background: rgba(239, 68, 68, 0.09);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-red, #ef4444);
}

.login-alert-banner.success {
  display: flex;
  background: rgba(16, 185, 129, 0.09);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green, #10b981);
}

.login-alert-banner i {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

@keyframes bannerFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Card Shake Animation on Validation Error */
.card-shake {
  animation: shakeEffect 0.45s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes shakeEffect {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-3px, 0, 0); }
  40%, 60% { transform: translate3d(3px, 0, 0); }
}

/* Form Groups & Inputs */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.login-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  position: relative;
}

.login-field-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-main, #0f172a);
}

.login-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon-left {
  position: absolute;
  left: 0.75rem;
  width: 15px;
  height: 15px;
  color: var(--text-sub, #64748b);
  pointer-events: none;
  transition: color 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-input {
  width: 100%;
  height: 38px;
  padding: 0 2.4rem 0 2.4rem;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--search-border, #e2e8f0);
  background: var(--search-bg, #f1f5f9);
  color: var(--text-main, #0f172a);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  box-sizing: border-box;
  outline: none;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-input::placeholder {
  color: var(--text-sub, #94a3b8);
  font-size: 0.78rem;
}

.login-input:hover {
  border-color: #cbd5e1;
}

body.theme-dark .login-input:hover {
  border-color: #334155;
}

.login-input:focus {
  border-color: var(--primary-blue, #3b82f6);
  background: var(--card-bg, #ffffff);
  box-shadow: 0 0 0 3px var(--primary-glow, rgba(59, 130, 246, 0.25));
}

.login-input:focus + .input-icon-left,
.login-input-wrap:focus-within .input-icon-left {
  color: var(--primary-blue, #3b82f6);
}

/* Password Toggle Button */
.password-toggle-btn {
  position: absolute;
  right: 0.65rem;
  background: transparent;
  border: none;
  padding: 0.35rem;
  color: var(--text-sub, #64748b);
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}

.password-toggle-btn:hover {
  color: var(--text-main, #0f172a);
}

.password-toggle-btn i {
  width: 16px;
  height: 16px;
}

/* Field Validation Error Feedback */
.field-error-msg {
  display: none;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-red, #ef4444);
  line-height: 1.25;
  margin-top: 2px;
}

.login-field-group.has-error .login-input {
  border-color: var(--accent-red, #ef4444) !important;
  background: rgba(239, 68, 68, 0.04);
}

.login-field-group.has-error .field-error-msg {
  display: block;
}

.login-field-group.is-valid .login-input {
  border-color: rgba(16, 185, 129, 0.5);
}

/* Options Row: Remember Me & Forgot Password */
.login-options-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -0.25rem;
  font-size: 0.74rem;
}

.remember-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  user-select: none;
  color: var(--text-sub, #64748b);
  font-weight: 500;
}

.forgot-password-link {
  color: var(--primary-blue, #3b82f6);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
  cursor: pointer;
}

.forgot-password-link:hover {
  text-decoration: underline;
  color: var(--primary-hover, #2563eb);
}

/* Submit Action Button */
.login-submit-btn {
  height: 40px;
  width: 100%;
  margin-top: 0.15rem;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md, 8px);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.38);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  user-select: none;
}

.login-submit-btn:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

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

.login-submit-btn i {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.login-submit-btn:hover i {
  transform: translateX(3px);
}

/* Submitting / Loading State */
.login-submit-btn.is-loading {
  pointer-events: none;
  opacity: 0.85;
}

.login-submit-btn.is-loading .btn-text,
.login-submit-btn.is-loading i {
  display: none;
}

.btn-spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2.2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spinnerRotate 0.65s linear infinite;
}

.login-submit-btn.is-loading .btn-spinner {
  display: inline-block;
}

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

/* Card Bottom Micro-Badge */
.card-security-note {
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-size: 0.64rem;
  font-weight: 600;
  color: var(--text-sub, #94a3b8);
  text-align: center;
}

.card-security-note i {
  width: 12px;
  height: 12px;
  color: var(--accent-green, #10b981);
}

/* Bottom Page Footer Sustainability Badge & Copyright */
.login-page-footer {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.25rem 1rem 0.75rem;
  box-sizing: border-box;
  text-align: center;
  flex-shrink: 0;
}

.login-sustainability-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.65rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-pill, 9999px);
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--accent-green, #10b981);
  letter-spacing: 0.02em;
}

.login-sustainability-chip i {
  width: 12px;
  height: 12px;
}

.login-copyright {
  font-size: 0.66rem;
  color: var(--text-sub, #94a3b8);
  line-height: 1.2;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 640px) {
  .login-topbar {
    padding: 1rem 1.25rem;
  }

  .login-main-container {
    padding: 0.5rem 1rem 2rem;
  }

  .login-card {
    padding: 1.65rem 1.35rem 1.5rem;
    border-radius: 10px;
  }

  .login-title {
    font-size: 1.2rem;
  }

  .login-subtitle {
    font-size: 0.74rem;
  }

  .login-page-footer {
    flex-direction: column;
    gap: 0.4rem;
    text-align: center;
  }
}