/**
 * Form State Animations Demo Styles
 * Completely isolated from main site
 */

/* Scoped variables - using .demo-page wrapper instead of :root */
.demo-page--form-state-animations {
  --fs-color-bg: #0c0a0d;
  --fs-color-bg-card: rgba(18, 15, 20, 0.9);
  --fs-color-bg-input: rgba(255, 255, 255, 0.03);
  --fs-color-border: rgba(255, 255, 255, 0.08);
  --fs-color-border-focus: rgba(255, 255, 255, 0.15);
  --fs-color-text: #ffffff;
  --fs-color-text-muted: #9a959f;
  --fs-color-text-dim: #6a656f;

  /* Warm rose/coral palette */
  --fs-color-primary: #f472b6;
  --fs-color-primary-dim: rgba(244, 114, 182, 0.15);
  --fs-color-success: #34d399;
  --fs-color-success-dim: rgba(52, 211, 153, 0.15);
  --fs-color-error: #fb7185;
  --fs-color-error-dim: rgba(251, 113, 133, 0.1);
  --fs-color-warning: #fbbf24;

  --fs-font-main: 'Inter', system-ui, sans-serif;

  --fs-radius-sm: 6px;
  --fs-radius-md: 10px;
  --fs-radius-lg: 14px;
  --fs-radius-xl: 20px;

  --fs-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --fs-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Apply base styles to wrapper */
  min-height: 100vh;
  font-family: var(--fs-font-main);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(244, 114, 182, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
    var(--fs-color-bg);
  color: var(--fs-color-text);
  margin: 0;
  padding: 0;
}

/* Reset scoped to demo */
.demo-page--form-state-animations *,
.demo-page--form-state-animations *::before,
.demo-page--form-state-animations *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Back Link */
.demo-page--form-state-animations .back-link {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--fs-color-bg-card);
  border: 1px solid var(--fs-color-border);
  border-radius: 100px;
  color: var(--fs-color-text-muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.demo-page--form-state-animations .back-link:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--fs-color-border-focus);
  color: var(--fs-color-text);
}

.demo-page--form-state-animations .back-link svg {
  transition: transform 0.25s ease;
}

.demo-page--form-state-animations .back-link:hover svg {
  transform: translateX(-3px);
}

/* Reset Button */
.demo-page--form-state-animations .reset-btn {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--fs-color-bg-card);
  border: 1px solid var(--fs-color-border);
  border-radius: 50%;
  color: var(--fs-color-text-muted);
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.demo-page--form-state-animations .reset-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--fs-color-primary);
  color: var(--fs-color-primary);
  transform: rotate(-30deg);
}

/* Form Demo Layout */
.demo-page--form-state-animations .form-demo {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 60px;
}

.demo-page--form-state-animations .form-demo__container {
  width: 100%;
  max-width: 420px;
}

.demo-page--form-state-animations .form-demo__header {
  text-align: center;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(20px);
  animation: fs-fadeUp 0.6s var(--fs-ease-out) forwards;
}

.demo-page--form-state-animations .form-demo__title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.demo-page--form-state-animations .form-demo__subtitle {
  color: var(--fs-color-text-muted);
  font-size: 15px;
  line-height: 1.5;
}

@keyframes fs-fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Form */
.demo-page--form-state-animations .form {
  background: var(--fs-color-bg-card);
  border: 1px solid var(--fs-color-border);
  border-radius: var(--fs-radius-xl);
  padding: 32px;
  opacity: 0;
  transform: translateY(20px);
  animation: fs-fadeUp 0.6s var(--fs-ease-out) 0.1s forwards;
}

.demo-page--form-state-animations .form.hidden {
  display: none;
}

/* Form Field */
.demo-page--form-state-animations .form-field {
  margin-bottom: 24px;
}

.demo-page--form-state-animations .form-field__input-wrap {
  position: relative;
}

.demo-page--form-state-animations .form-field__input {
  width: 100%;
  padding: 18px 16px 8px;
  background: var(--fs-color-bg-input);
  border: 1px solid var(--fs-color-border);
  border-radius: var(--fs-radius-md);
  font-family: inherit;
  font-size: 15px;
  color: var(--fs-color-text);
  outline: none;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.demo-page--form-state-animations .form-field__input:hover {
  border-color: var(--fs-color-border-focus);
}

.demo-page--form-state-animations .form-field__input:focus {
  border-color: var(--fs-color-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Floating Label */
.demo-page--form-state-animations .form-field__label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 15px;
  color: var(--fs-color-text-dim);
  pointer-events: none;
  transition: all 0.25s var(--fs-ease-out);
  transform-origin: left center;
}

.demo-page--form-state-animations .form-field__input:focus ~ .form-field__label,
.demo-page--form-state-animations .form-field__input:not(:placeholder-shown) ~ .form-field__label {
  top: 12px;
  transform: translateY(0) scale(0.75);
  color: var(--fs-color-text-muted);
}

.demo-page--form-state-animations .form-field__input:focus ~ .form-field__label {
  color: var(--fs-color-primary);
}

/* Focus Ring Animation */
.demo-page--form-state-animations .form-field__focus-ring {
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--fs-radius-md) + 2px);
  border: 2px solid var(--fs-color-primary);
  opacity: 0;
  transform: scale(1.02);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s var(--fs-ease-spring);
}

.demo-page--form-state-animations .form-field__input:focus ~ .form-field__focus-ring {
  opacity: 0.5;
  transform: scale(1);
}

/* Password Toggle */
.demo-page--form-state-animations .form-field__toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--fs-color-text-dim);
  cursor: pointer;
  border-radius: var(--fs-radius-sm);
  transition: color 0.2s ease, background 0.2s ease;
}

.demo-page--form-state-animations .form-field__toggle-password:hover {
  color: var(--fs-color-text-muted);
  background: rgba(255, 255, 255, 0.05);
}

.demo-page--form-state-animations .form-field__toggle-password svg {
  width: 20px;
  height: 20px;
}

.demo-page--form-state-animations .form-field__toggle-password .icon-hide {
  display: none;
}

.demo-page--form-state-animations .form-field__toggle-password.is-visible .icon-show {
  display: none;
}

.demo-page--form-state-animations .form-field__toggle-password.is-visible .icon-hide {
  display: block;
}

.demo-page--form-state-animations [data-field="password"] .form-field__input {
  padding-right: 50px;
}

/* Password Strength */
.demo-page--form-state-animations .password-strength {
  margin-top: 10px;
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity 0.3s ease, transform 0.3s var(--fs-ease-out);
}

.demo-page--form-state-animations .password-strength.visible {
  opacity: 1;
  transform: translateY(0);
}

.demo-page--form-state-animations .password-strength__bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 6px;
}

.demo-page--form-state-animations .password-strength__fill {
  height: 100%;
  width: 0;
  border-radius: 100px;
  transition: width 0.4s var(--fs-ease-spring), background 0.3s ease;
}

.demo-page--form-state-animations .password-strength__fill[data-strength="weak"] {
  width: 33%;
  background: var(--fs-color-error);
}

.demo-page--form-state-animations .password-strength__fill[data-strength="medium"] {
  width: 66%;
  background: var(--fs-color-warning);
}

.demo-page--form-state-animations .password-strength__fill[data-strength="strong"] {
  width: 100%;
  background: var(--fs-color-success);
}

.demo-page--form-state-animations .password-strength__label {
  font-size: 12px;
  color: var(--fs-color-text-dim);
  transition: color 0.3s ease;
}

.demo-page--form-state-animations .password-strength__label[data-strength="weak"] {
  color: var(--fs-color-error);
}

.demo-page--form-state-animations .password-strength__label[data-strength="medium"] {
  color: var(--fs-color-warning);
}

.demo-page--form-state-animations .password-strength__label[data-strength="strong"] {
  color: var(--fs-color-success);
}

/* Feedback Messages */
.demo-page--form-state-animations .form-field__feedback {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 24px;
  margin-top: 6px;
  padding-left: 2px;
}

.demo-page--form-state-animations .form-field__error {
  font-size: 13px;
  color: var(--fs-color-error);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.25s ease, transform 0.25s var(--fs-ease-out);
}

.demo-page--form-state-animations .form-field__success {
  width: 18px;
  height: 18px;
  color: var(--fs-color-success);
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.25s ease, transform 0.35s var(--fs-ease-spring);
}

.demo-page--form-state-animations .form-field__success svg {
  width: 100%;
  height: 100%;
}

/* Field States */
.demo-page--form-state-animations .form-field.has-error .form-field__input {
  border-color: var(--fs-color-error);
  animation: fs-shake 0.5s var(--fs-ease-out);
}

.demo-page--form-state-animations .form-field.has-error .form-field__error {
  opacity: 1;
  transform: translateX(0);
}

.demo-page--form-state-animations .form-field.is-valid .form-field__input {
  border-color: var(--fs-color-success);
}

.demo-page--form-state-animations .form-field.is-valid .form-field__success {
  opacity: 1;
  transform: scale(1);
}

@keyframes fs-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

/* Submit Button */
.demo-page--form-state-animations .submit-btn {
  position: relative;
  width: 100%;
  height: 52px;
  margin-top: 8px;
  background: var(--fs-color-primary);
  border: none;
  border-radius: var(--fs-radius-md);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  color: #1a1a1a;
  cursor: pointer;
  overflow: hidden;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

.demo-page--form-state-animations .submit-btn:hover:not(:disabled) {
  background: #f687b7;
  box-shadow: 0 8px 24px rgba(244, 114, 182, 0.3);
  transform: translateY(-1px);
}

.demo-page--form-state-animations .submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.demo-page--form-state-animations .submit-btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

.demo-page--form-state-animations .submit-btn__text,
.demo-page--form-state-animations .submit-btn__loading,
.demo-page--form-state-animations .submit-btn__success {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease, transform 0.3s var(--fs-ease-out);
}

.demo-page--form-state-animations .submit-btn__loading,
.demo-page--form-state-animations .submit-btn__success {
  opacity: 0;
  transform: scale(0.8);
}

.demo-page--form-state-animations .submit-btn__loading svg {
  width: 24px;
  height: 24px;
}

.demo-page--form-state-animations .submit-btn__success svg {
  width: 28px;
  height: 28px;
}

.demo-page--form-state-animations .spinner {
  animation: fs-spin 1s linear infinite;
}

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

/* Button States */
.demo-page--form-state-animations .submit-btn.is-loading .submit-btn__text {
  opacity: 0;
  transform: scale(0.8);
}

.demo-page--form-state-animations .submit-btn.is-loading .submit-btn__loading {
  opacity: 1;
  transform: scale(1);
}

.demo-page--form-state-animations .submit-btn.is-success {
  background: var(--fs-color-success);
}

.demo-page--form-state-animations .submit-btn.is-success .submit-btn__text,
.demo-page--form-state-animations .submit-btn.is-success .submit-btn__loading {
  opacity: 0;
  transform: scale(0.8);
}

.demo-page--form-state-animations .submit-btn.is-success .submit-btn__success {
  opacity: 1;
  transform: scale(1);
}

/* Success Message */
.demo-page--form-state-animations .success-message {
  display: none;
  text-align: center;
  background: var(--fs-color-bg-card);
  border: 1px solid var(--fs-color-border);
  border-radius: var(--fs-radius-xl);
  padding: 48px 32px;
}

.demo-page--form-state-animations .success-message.visible {
  display: block;
  animation: fs-successPop 0.5s var(--fs-ease-spring);
}

@keyframes fs-successPop {
  0% {
    opacity: 0;
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.demo-page--form-state-animations .success-message__icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  color: var(--fs-color-success);
}

.demo-page--form-state-animations .success-message__icon svg {
  width: 100%;
  height: 100%;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: fs-drawCheck 0.6s var(--fs-ease-out) 0.2s forwards;
}

@keyframes fs-drawCheck {
  to {
    stroke-dashoffset: 0;
  }
}

.demo-page--form-state-animations .success-message__title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.demo-page--form-state-animations .success-message__text {
  color: var(--fs-color-text-muted);
  font-size: 15px;
  margin-bottom: 24px;
}

.demo-page--form-state-animations .success-message__btn {
  padding: 12px 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--fs-color-border);
  border-radius: var(--fs-radius-md);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--fs-color-text);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.demo-page--form-state-animations .success-message__btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--fs-color-border-focus);
}

/* Hint */
.demo-page--form-state-animations .form-demo__hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 13px;
  color: var(--fs-color-text-dim);
  text-align: center;
  opacity: 0;
  animation: fs-fadeUp 0.6s var(--fs-ease-out) 0.3s forwards;
}

.demo-page--form-state-animations .form-demo__hint svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 600px) {
  .demo-page--form-state-animations .back-link {
    top: 16px;
    left: 16px;
    padding: 8px 12px;
    font-size: 12px;
  }

  .demo-page--form-state-animations .reset-btn {
    top: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
  }

  .demo-page--form-state-animations .form-demo {
    padding: 80px 16px 40px;
  }

  .demo-page--form-state-animations .form-demo__title {
    font-size: 26px;
  }

  .demo-page--form-state-animations .form {
    padding: 24px;
  }
}