@import 'variables.css';

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Layout */
.container {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-4);
}

.form-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: center;
  padding-top: 80px;
}

/* Header with theme toggle */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-content {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

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

.theme-toggle-icon {
  width: 20px;
  height: 20px;
}

/* Progress bar - now more visible */
.progress-container {
  background: var(--color-bg);
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-normal);
}

.progress-wrapper {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.progress-track {
  flex: 1;
  height: 6px;
  background: var(--color-progress-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-accent);
  width: 0%;
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.progress-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-progress-text);
  min-width: 60px;
  text-align: right;
}

/* Step indicators */
.step-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.step-number {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
}

.step-total {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Form steps */
.form-step {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.form-step.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Questions */
.question-label {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-tight);
}

.question-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

/* Inputs */
.input-wrapper {
  margin-bottom: var(--space-6);
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--font-size-lg);
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Checkbox */
.checkbox-wrapper {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  padding: var(--space-4);
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.checkbox-wrapper:hover {
  border-color: var(--color-accent);
}

.checkbox-wrapper:has(input:checked) {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
}

.checkbox-wrapper input[type="checkbox"] {
  width: 24px;
  height: 24px;
  margin-top: 2px;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-label {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
}

/* File upload */
.file-upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.file-upload-area:hover,
.file-upload-area.dragover {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
}

.file-upload-icon {
  font-size: 48px;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.file-upload-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.file-upload-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.file-upload-input {
  display: none;
}

/* File previews */
.file-previews {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.file-preview {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.file-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-preview-remove {
  position: absolute;
  top: var(--space-1);
  right: var(--space-1);
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: background-color var(--transition-fast);
}

.file-preview-remove:hover {
  background: var(--color-error);
}

.file-preview-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-bg);
}

.file-preview-progress-bar {
  height: 100%;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-sans);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
}

.btn-text {
  background: transparent;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-4);
}

.btn-text:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-hover);
}

/* Navigation */
.form-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-8);
}

.nav-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.nav-hint kbd {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* Error messages */
.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-2);
  display: none;
}

.error-message.visible {
  display: block;
}

.input-error {
  border-color: var(--color-error) !important;
}

/* Success screen */
.success-screen {
  display: none;
  text-align: center;
  padding: var(--space-16) var(--space-4);
}

.success-screen.active {
  display: block;
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: var(--color-success);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.success-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.success-message {
  color: var(--color-text-secondary);
  max-width: 400px;
  margin: 0 auto;
}

/* Loading spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 640px) {
  .question-label {
    font-size: var(--font-size-xl);
  }

  .file-previews {
    grid-template-columns: repeat(3, 1fr);
  }

  .nav-hint {
    display: none;
  }

  .header-title {
    display: none;
  }
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* Selection */
::selection {
  background: var(--color-accent-muted);
  color: var(--color-text-primary);
}