/* Modern Login Page Styles for Tapas Yoga HK */

/* ===== LAYOUT & CONTAINER ===== */
.login-container {
  min-height: 100vh;
  min-height: 100dvh;
  /* Dynamic viewport height for mobile */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: linear-gradient(135deg,
      var(--yoga-bg) 0%,
      var(--yoga-secondary-soft) 25%,
      var(--yoga-primary-soft) 50%,
      var(--yoga-accent-soft) 100%);
  position: relative;
  overflow: hidden;
}

/* Modern 2025 background patterns */
.login-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 30%, var(--yoga-secondary) 0%, transparent 25%),
    radial-gradient(circle at 80% 70%, var(--yoga-accent) 0%, transparent 30%);
  opacity: 0.06;
  pointer-events: none;
}

/* Static background pattern for better performance */
.login-container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(45deg, transparent 40%, var(--yoga-tech-soft) 50%, transparent 60%);
  opacity: 0.08;
  pointer-events: none;
}

.login-card {
  width: 100%;
  max-width: var(--form-max-width);
  background: var(--yoga-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-warm);
  overflow: hidden;
  position: relative;
  border: 2px solid var(--yoga-border-warm);
  transition: all var(--transition-slow);
}

.login-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: var(--yoga-primary-light);
}

/* ===== HEADER SECTION ===== */
.login-header {
  padding: var(--space-8) var(--space-6) var(--space-6);
  text-align: center;
  background: linear-gradient(135deg,
      var(--yoga-primary-soft) 0%,
      var(--yoga-secondary-soft) 50%,
      var(--yoga-accent-soft) 100%);
  position: relative;
}

.login-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 20%, var(--yoga-secondary) 0%, transparent 40%),
    radial-gradient(circle at 70% 80%, var(--yoga-primary) 0%, transparent 40%);
  opacity: 0.1;
  pointer-events: none;
}

.brand-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  position: relative;
  z-index: 1;
}

.brand-logo {
  width: 118px;
  height: 118px;
  border-radius: var(--radius-2xl);
  object-fit: cover;
  box-shadow: var(--shadow-warm);
  border: 3px solid var(--yoga-primary-light);
  transition: all var(--transition-normal);
  position: relative;
}

.brand-logo::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  background: linear-gradient(45deg, var(--yoga-primary), var(--yoga-secondary), var(--yoga-accent));
  border-radius: var(--radius-2xl);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.brand-logo:hover::before {
  opacity: 0.6;
}

.brand-title {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  color: var(--yoga-text-medium);
  margin: 0;
  letter-spacing: -0.025em;
  text-shadow: 0 1px 2px rgba(44, 24, 16, 0.1);
  position: relative;
  padding: 8px 28px;
}

/* Add warm glow effect instead of gradient text for better readability */
.brand-title::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--yoga-primary), var(--yoga-accent));
  opacity: 0.1;
  border-radius: var(--radius-sm);
  z-index: -1;
}

.brand-subtitle {
  font-size: var(--font-size-sm);
  color: #000000;
  margin: 0;
  font-style: italic;
  opacity: 0.8;
}

/* ===== FORM SECTION ===== */
.login-form-section {
  padding: var(--space-6);
}

.login-heading {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--yoga-text-medium);
  margin: 0 0 var(--space-2) 0;
  text-align: center;
}

.login-description {
  font-size: var(--font-size-sm);
  color: #000000;
  opacity: 0.8;
  text-align: center;
  font-style: italic;
  margin: 0 0 var(--space-6) 0;
  line-height: var(--line-height-relaxed);
}

/* ===== FORM ELEMENTS ===== */
.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--yoga-text-medium);
  margin: 0;
}

/* Input Groups */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--yoga-primary-dark);
  font-size: var(--font-size-sm);
  z-index: 1;
  pointer-events: none;
  opacity: 0.7;
}

.form-input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
  border: 2px solid var(--yoga-border-warm);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  color: white;
  font-weight: var(--font-weight-medium);
  background: linear-gradient(135deg, var(--yoga-earth) 0%, var(--yoga-tech-dark) 100%);
  transition: all var(--transition-normal);
  font-family: inherit;
  position: relative;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-input::-webkit-input-placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-input::-moz-placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-input:-ms-input-placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-input:focus {
  outline: none;
  border-color: var(--yoga-primary);
  box-shadow: 0 0 0 3px rgba(255, 138, 80, 0.2), var(--shadow-warm);
  background: linear-gradient(135deg, var(--yoga-earth-dark) 0%, var(--yoga-tech-dark) 100%);
  transform: translateY(-2px);
}

.form-input:focus::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-input:invalid:not(:focus):not(:placeholder-shown) {
  border-color: var(--yoga-error);
  box-shadow: 0 0 0 3px rgba(239, 83, 80, 0.1);
}

.form-input:valid:not(:focus):not(:placeholder-shown) {
  border-color: var(--yoga-success);
  box-shadow: 0 0 0 3px rgba(102, 187, 106, 0.1);
}

/* Password Toggle Button */
.password-toggle {
  position: absolute;
  right: var(--space-4);
  background: none;
  border: none;
  color: var(--yoga-primary-dark);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
  z-index: 1;
  opacity: 0.7;
}

.password-toggle:hover {
  color: var(--yoga-text-medium);
  opacity: 1;
}

.password-toggle:focus {
  outline: 2px solid var(--yoga-primary);
  outline-offset: 2px;
}

/* Checkbox Styling */
.checkbox-group {
  flex-direction: row;
  align-items: center;
  gap: var(--space-3);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--yoga-text-medium);
  font-weight: var(--font-weight-medium);
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--yoga-border);
  border-radius: var(--radius-sm);
  background-color: var(--yoga-bg);
  position: relative;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.checkbox-custom::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 6px;
  width: 6px;
  height: 10px;
  border: solid var(--yoga-bg-card);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform var(--transition-fast);
}

.checkbox-input:checked+.checkbox-custom {
  background-color: var(--yoga-accent);
  border-color: var(--yoga-accent);
}

.checkbox-input:checked+.checkbox-custom::after {
  transform: rotate(45deg) scale(1);
}

.checkbox-input:focus+.checkbox-custom {
  outline: 2px solid var(--yoga-accent);
  outline-offset: 2px;
}

.checkbox-text {
  flex: 1;
}

/* Select Styling */
.select-wrapper {
  position: relative;
}

.form-select {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--yoga-border-warm);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  color: white;
  font-weight: var(--font-weight-medium);
  background: linear-gradient(135deg, var(--yoga-earth) 0%, var(--yoga-tech-dark) 100%);
  appearance: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: inherit;
}

.form-select:focus {
  outline: none;
  border-color: var(--yoga-primary);
  box-shadow: 0 0 0 3px rgba(255, 138, 80, 0.2);
  background: linear-gradient(135deg, var(--yoga-earth-dark) 0%, var(--yoga-tech-dark) 100%);
}

.select-icon {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: white;
  pointer-events: none;
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

.form-help {
  font-size: var(--font-size-xs);
  color: var(--yoga-text-medium);
  margin: 0;
}

/* Form Errors */
.form-error {
  font-size: var(--font-size-xs);
  color: var(--yoga-error);
  margin: 0;
  min-height: 1.2em;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-error:not(:empty)::before {
  content: '⚠';
  font-size: var(--font-size-sm);
}

/* Submit Button */
.login-button {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  background: linear-gradient(135deg, #ff5400 0%, #fc5e2c 50%, var(--yoga-secondary-dark) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 52px;
  font-family: inherit;
  box-shadow: var(--shadow-warm);
}

.login-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.3) 50%,
      transparent 100%);
  transition: left var(--transition-slow);
}

.login-button:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
  background: linear-gradient(135deg,
      var(--yoga-primary-light) 0%,
      var(--yoga-accent-light) 50%,
      var(--yoga-secondary) 100%);
}

.login-button:hover:not(:disabled)::before {
  left: 100%;
}

.login-button:active:not(:disabled) {
  transform: translateY(-1px);
}

.login-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.login-button:focus {
  outline: 3px solid rgba(255, 138, 80, 0.4);
  outline-offset: 2px;
}

.button-text {
  transition: opacity var(--transition-fast);
}

.button-spinner {
  font-size: var(--font-size-sm);
}

.login-button.loading .button-text {
  opacity: 0;
}

.login-button.loading .button-spinner {
  display: inline-block !important;
}

/* Form Status */
.form-status {
  font-size: var(--font-size-sm);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-align: center;
  min-height: 1.2em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.form-status.success {
  background-color: rgba(107, 142, 107, 0.1);
  color: var(--yoga-success);
  border: 1px solid rgba(107, 142, 107, 0.2);
}

.form-status.error {
  background-color: rgba(214, 122, 91, 0.1);
  color: var(--yoga-error);
  border: 1px solid rgba(214, 122, 91, 0.2);
  font-weight: bold;
}

/* ===== FOOTER SECTION ===== */
.login-footer {
  padding: var(--space-6);
  text-align: center;
  border-top: 1px solid var(--yoga-border-light);
  background-color: var(--yoga-bg-alt);
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--yoga-primary-dark);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--yoga-accent-dark);
  text-decoration: underline;
}

.footer-divider {
  color: var(--yoga-text-muted);
  font-size: var(--font-size-xs);
}

.footer-text {
  font-size: var(--font-size-xs);
  color: var(--yoga-text-light);
  margin: 0;
}

.signup-link {
  font-weight: var(--font-weight-semibold);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: var(--yoga-text-muted);
  margin: var(--space-3) 0 0 0;
  text-align: center;
  border-top: 1px solid var(--yoga-border-warm);
  padding-top: var(--space-3);
  opacity: 0.8;
}

/* ===== LOADING OVERLAY ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg,
      rgba(255, 138, 80, 0.95) 0%,
      rgba(255, 112, 67, 0.95) 50%,
      rgba(255, 213, 79, 0.95) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  font-size: 2.5rem;
  color: white;
  animation: warm-pulse 2s ease-in-out infinite;
  text-shadow: 0 2px 8px rgba(255, 138, 80, 0.5);
}

.loading-text {
  color: white;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  text-shadow: 0 2px 4px rgba(255, 138, 80, 0.3);
}

@keyframes warm-pulse {

  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.9;
    text-shadow: 0 2px 8px rgba(255, 138, 80, 0.5);
  }

  50% {
    transform: scale(1.15) rotate(180deg);
    opacity: 1;
    text-shadow: 0 4px 16px rgba(255, 213, 79, 0.8);
  }
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet and small desktop */
@media (min-width: 768px) {
  .login-container {
    padding: var(--space-8);
  }

  .login-card {
    max-width: 480px;
  }

  .login-header {
    padding: var(--space-10) var(--space-8) var(--space-8);
  }

  .login-form-section {
    padding: var(--space-8);
  }

  .brand-logo {
    width: 128px;
    height: 128px;
  }

  .brand-title {
    font-size: 23px;
  }

  .login-heading {
    font-size: var(--font-size-2xl);
  }
}

/* Large screens */
@media (min-width: 1024px) {
  .login-container {
    background: linear-gradient(135deg,
        var(--yoga-bg) 0%,
        var(--yoga-secondary-light) 50%,
        var(--yoga-accent-light) 100%);
  }

  .login-card {
    transform: scale(1);
    transition: transform var(--transition-slow);
  }

  .login-card:hover {
    transform: scale(1.02);
  }
}

/* Small screens and mobile */
@media (max-width: 480px) {
  .login-container {
    padding: var(--space-2);
  }

  .login-card {
    border-radius: var(--radius-xl);
    min-height: calc(100vh - var(--space-4));
    display: flex;
    flex-direction: column;
  }

  .login-form-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .form-input,
  .form-select,
  .login-button {
    min-height: 56px;
    /* Larger touch targets on mobile */
    font-size: var(--font-size-lg);
  }

  .input-icon {
    font-size: var(--font-size-base);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-2);
  }

  .footer-divider {
    display: none;
  }
}

/* Extra small screens */
@media (max-width: 320px) {
  .login-container {
    padding: var(--space-1);
  }

  .brand-title {
    font-size: var(--font-size-xl);
  }

  .login-heading {
    font-size: var(--font-size-lg);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {

  .form-input,
  .form-select {
    border-width: 3px;
  }

  .login-button {
    border: 2px solid var(--yoga-text);
  }

  .checkbox-custom {
    border-width: 3px;
  }
}

/* Print styles */
@media print {
  .loading-overlay {
    display: none;
  }

  .login-footer {
    page-break-inside: avoid;
  }
}