/* ============================================================
   SKIN SIGHT - Styles
   Mobile-first, white-label ready tattoo intake quiz
   ============================================================ */

/* ============================================================
   CSS CUSTOM PROPERTIES (Design System)
   ============================================================ */

:root {
  /* Backgrounds */
  --bg-primary: #FAF7F2;
  --bg-surface: #FFFFFF;
  --bg-surface-hover: #F5F1EB;

  /* Primary palette */
  --color-primary: #C9885C;
  --color-primary-hover: #B5764D;
  --color-secondary: #8FA878;
  --color-secondary-hover: #7D9568;

  /* Text */
  --text-primary: #2D2A26;
  --text-secondary: #7D756A;
  --text-muted: #A9A096;

  /* Accents */
  --color-highlight: #F2E0D4;
  --color-success: #7CAF7A;
  --color-warning: #D4A855;
  --color-error: #C97065;

  /* Borders */
  --border-color: #E8E4DE;
  --border-focus: #C9885C;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(45, 42, 38, 0.05);
  --shadow-md: 0 4px 6px rgba(45, 42, 38, 0.07);
  --shadow-lg: 0 10px 15px rgba(45, 42, 38, 0.1);

  /* Typography */
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ============================================================
   RESET & BASE STYLES
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 1.75rem;
  font-weight: 600;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

.text-small {
  font-size: 0.875rem;
}

.text-tiny {
  font-size: 0.75rem;
}

.text-muted {
  color: var(--text-muted);
}

.text-secondary {
  color: var(--text-secondary);
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: white;
  z-index: 100;
  text-decoration: none;
  font-weight: 500;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  top: 0;
}

/* Focus styles */
:focus {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: 100%;
  padding: var(--space-lg);
  margin: 0 auto;
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */

.progress-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--border-color);
  z-index: 50;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width var(--transition-base);
}

/* ============================================================
   SCREENS
   ============================================================ */

.screen {
  display: none;
  min-height: 100vh;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xxl);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.screen.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   LANDING SCREEN
   ============================================================ */

#landing .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--space-xl) - var(--space-xxl));
  text-align: center;
}

.logo-area {
  margin-bottom: var(--space-xxl);
}

.logo {
  max-width: 200px;
  height: auto;
}

.logo-text {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.intro {
  margin-bottom: var(--space-xxl);
}

.intro h2 {
  margin-bottom: var(--space-sm);
}

.intro p {
  font-size: 1rem;
}

.powered-by {
  margin-top: var(--space-xxl);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  min-height: 48px;
  padding: var(--space-md) var(--space-xl);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

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

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

.btn-primary:active:not(:disabled) {
  transform: scale(0.98);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-surface-hover);
}

.btn-large {
  width: 100%;
  max-width: 320px;
  padding: var(--space-md) var(--space-xl);
  font-size: 1.125rem;
}

/* ============================================================
   QUIZ SECTIONS
   ============================================================ */

.quiz-section .container {
  max-width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-number {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  font-size: 1rem;
}

.questions-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.section-footer {
  display: flex;
  justify-content: center;
}

/* ============================================================
   QUESTION CARDS (Bubble Selectors)
   ============================================================ */

.question-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

.question-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  text-align: center;
}

/* Bubble Group */
.bubble-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.bubble-option {
  display: flex;
  align-items: center;
  padding: var(--space-md);
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 48px;
}

.bubble-option:hover {
  border-color: var(--color-primary);
  background: var(--bg-surface-hover);
}

.bubble-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.bubble-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-highlight);
}

.bubble-option input[type="radio"]:checked + .bubble-text {
  color: var(--color-primary);
  font-weight: 500;
}

.bubble-option input[type="radio"]:focus-visible + .bubble-text {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.bubble-text {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.4;
  text-align: center;
  width: 100%;
}

/* ============================================================
   ARCHETYPE REVEAL
   ============================================================ */

#reveal .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: var(--space-xxl);
}

.reveal-animation {
  opacity: 0;
  transform: translateY(20px);
  animation: revealFade 800ms ease forwards;
  animation-delay: 300ms;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

@keyframes revealFade {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal-archetype {
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin: var(--space-md) 0;
  line-height: 1.3;
}

.reveal-sparkle {
  font-size: 2rem;
  display: inline-block;
  animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

.reveal-oneliner {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: revealFade 800ms ease forwards;
  animation-delay: 600ms;
}

.reveal-copy {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  text-align: center;
  opacity: 0;
  animation: revealFade 800ms ease forwards;
  animation-delay: 900ms;
}

.divider {
  width: 60px;
  height: 2px;
  background: var(--color-primary);
  margin: var(--space-xl) auto;
  opacity: 0;
  animation: revealFade 800ms ease forwards;
  animation-delay: 1100ms;
}

/* Ink Profile */
.ink-profile {
  opacity: 0;
  animation: revealFade 800ms ease forwards;
  animation-delay: 1300ms;
  margin-bottom: var(--space-xl);
}

.ink-profile h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.ink-profile-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.ink-profile-tagline {
  font-style: italic;
  margin-bottom: var(--space-md);
}

.ink-profile-copy {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.style-matches {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.style-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-highlight);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

#continue-to-details {
  opacity: 0;
  animation: revealFade 800ms ease forwards;
  animation-delay: 1500ms;
}

/* ============================================================
   DETAILS FORM
   ============================================================ */

#details .container {
  max-width: 100%;
}

#details h2 {
  text-align: center;
  margin-bottom: var(--space-xs);
}

#details > .container > p {
  text-align: center;
  margin-bottom: var(--space-xl);
}

/* Form Errors */
.form-errors {
  margin-bottom: var(--space-lg);
}

.form-errors:empty {
  display: none;
}

.form-errors .error {
  background: rgba(201, 112, 101, 0.1);
  border-left: 3px solid var(--color-error);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-error);
  font-size: 0.875rem;
}

/* Form Groups */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group > label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.required {
  color: var(--color-error);
}

/* Select */
select {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237D756A' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  cursor: pointer;
  min-height: 48px;
}

select:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(201, 136, 92, 0.2);
}

/* Text Inputs */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"] {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  min-height: 48px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(201, 136, 92, 0.2);
}

input::placeholder {
  color: var(--text-muted);
}

/* Textarea */
textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  resize: vertical;
  min-height: 100px;
}

textarea:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(201, 136, 92, 0.2);
}

textarea::placeholder {
  color: var(--text-muted);
}

.char-count {
  display: block;
  text-align: right;
  margin-top: var(--space-xs);
}

/* Radio Group */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.radio-option {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  min-height: 48px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.radio-option:hover {
  border-color: var(--color-primary);
  background-color: var(--bg-surface-hover);
}

.radio-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-custom {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  position: relative;
}

.radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.radio-option input[type="radio"]:checked + .radio-custom {
  border-color: var(--color-primary);
}

.radio-option input[type="radio"]:checked + .radio-custom::after {
  transform: translate(-50%, -50%) scale(1);
}

.radio-option input[type="radio"]:focus-visible + .radio-custom {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.radio-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.radio-label {
  font-weight: 500;
  color: var(--text-primary);
}

.radio-desc {
  line-height: 1.3;
}

/* Conditional Fields */
.conditional-field {
  margin-top: var(--space-sm);
  padding-left: calc(20px + var(--space-md));
}

/* File Upload */
.file-upload {
  margin-top: var(--space-md);
}

.file-upload input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.file-upload-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.file-upload-label:hover {
  border-color: var(--color-primary);
  background-color: var(--bg-surface-hover);
}

.file-upload input[type="file"]:focus + .file-upload-label {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.file-upload-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-highlight);
  border-radius: 50%;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.file-list {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-surface-hover);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.file-remove {
  background: none;
  border: none;
  color: var(--color-error);
  cursor: pointer;
  padding: var(--space-xs);
  font-size: 1rem;
  line-height: 1;
}

/* Form Divider */
.form-divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--space-xl) 0;
}

.form-section-title {
  margin-bottom: var(--space-lg);
}

/* Submit Button */
#details-form .btn-large {
  margin-top: var(--space-lg);
}

/* ============================================================
   CONFIRMATION SCREEN
   ============================================================ */

#confirmation .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--space-xl) - var(--space-xxl));
  text-align: center;
}

.confirmation-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--color-success);
  border-radius: 50%;
  font-size: 2rem;
  color: white;
  margin-bottom: var(--space-xl);
}

#confirmation h2 {
  margin-bottom: var(--space-sm);
}

#confirmation p {
  margin-bottom: var(--space-xl);
}

#confirmation .btn-primary {
  margin-bottom: var(--space-md);
}

/* ============================================================
   LOADING OVERLAY
   ============================================================ */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(250, 247, 242, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-md);
}

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

.loading-overlay p {
  color: var(--text-secondary);
}

/* ============================================================
   RESPONSIVE STYLES
   ============================================================ */

/* Tablet and up */
@media (min-width: 768px) {
  .container {
    max-width: 600px;
  }

  h1 {
    font-size: 3rem;
  }

  .reveal-archetype {
    font-size: 2.5rem;
    letter-spacing: 4px;
  }

  .question-card {
    padding: var(--space-xl);
  }

  .question-label {
    font-size: 1.25rem;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .container {
    max-width: 700px;
  }

  .bubble-option {
    padding: var(--space-md) var(--space-lg);
  }

  .bubble-text {
    font-size: 1.0625rem;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}