/* image-to-pdf.css */
:root {
  --bg-page: #F8FAFC;
  --bg-hero-start: #F0FDFA;
  --bg-hero-end: #F1F5F9;
  --bg-card: #FFFFFF;
  --primary-accent: #0D9488;
  --primary-accent-light: #CCFBF1;
  --text-dark: #1E293B;
  --text-medium: #475569;
  --text-light: #94A3B8;
  --border-color: #E2E8F0;
  --error-bg: #FEF2F2;
  --error-text: #DC2626;
  --warning-bg: #FFFBEB;
  --warning-text: #B45309;
  --success-bg: #ECFDF5;
  --success-text: #065F46;
  --upload-bg: #F8FAFC;
  --upload-border: #E2E8F0;
  --upload-active: #CCFBF1;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-page);
  color: var(--text-medium);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--text-dark);
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

h2.section-title {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  margin-bottom: 1.25rem;
}

h3.subsection-title {
  font-size: clamp(1rem, 3vw, 1.1rem);
  margin-bottom: 0.75rem;
}

/* Navigation */
.navbar {
  background-color: var(--bg-card);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem clamp(0.75rem, 3vw, 1rem);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  height: 32px;
  width: auto;
}

.brand-name {
  font-weight: 700;
  color: var(--text-dark);
  font-size: 1.1rem;
}

/* Navigation Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 0.25rem;
  z-index: 1002;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-dark);
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Navigation Slider */
.nav-slider {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background-color: var(--bg-card);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  transition: right 0.3s ease-in-out;
  z-index: 1001;
  overflow-y: auto;
}

.nav-slider.active {
  right: 0;
}

.slider-content {
  padding: 1.5rem;
  height: 100%;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.slider-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-dark);
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1002;
}

.slider-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slider-link {
  display: block;
  padding: 1rem;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all 0.2s;
}

.slider-link:hover, .slider-link.active {
  background-color: var(--primary-accent-light);
  color: var(--primary-accent);
}

/* Overlay when slider is open */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Layout */
main {
  padding: 0.75rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.card {
  background-color: var(--bg-card);
  border-radius: 0.75rem;
  padding: clamp(0.75rem, 3vw, 1.25rem);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
  width: 100%;
}

.main-card {
  border-top: 4px solid var(--primary-accent);
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 768px) {
  main {
    padding: 1rem;
  }
  .main-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* Form Styles */
.form-section {
  width: 100%;
}

.input-group {
  margin-bottom: 1.5rem;
}

.form-section label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: clamp(0.8rem, 2.5vw, 0.875rem);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-section input, .form-section select {
  width: 100%;
  padding: clamp(0.5rem, 2vw, 0.75rem);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: clamp(0.875rem, 2.5vw, 1rem);
  background-color: var(--bg-page);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-section input:focus, .form-section select:focus {
  outline: none;
  background-color: white;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px var(--primary-accent-light);
}

.calculate-button {
  width: 100%;
  background-color: var(--primary-accent);
  color: white;
  border: none;
  padding: 1rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 1rem;
}

.calculate-button:hover {
  background-color: #0b8378;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.2);
}

/* Upload Area */
.upload-area {
  border: 2px dashed var(--upload-border);
  border-radius: 0.75rem;
  padding: 2rem;
  text-align: center;
  background-color: var(--upload-bg);
  transition: all 0.3s ease;
  cursor: pointer;
  margin-bottom: 1.5rem;
}

.upload-area:hover, .upload-area.active {
  border-color: var(--primary-accent);
  background-color: var(--upload-active);
}

.upload-content i {
  font-size: 3rem;
  color: var(--primary-accent);
  margin-bottom: 1rem;
}

.upload-content h3 {
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.upload-content p {
  color: var(--text-medium);
  margin-bottom: 0.5rem;
}

.file-types {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* Results Section */
.results-section {
  width: 100%;
}

.results-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
}

.result-box {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--bg-page);
  border-radius: 0.75rem;
  border: 1px solid var(--border-color);
  width: 100%;
}

.result-box.primary {
  background-color: var(--primary-accent-light);
  border-color: var(--primary-accent);
}

.result-label {
  font-size: 0.875rem;
  color: var(--text-medium);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.result-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.result-box small {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Preview Section */
.preview-section {
  width: 100%;
}

.preview-container {
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  overflow: hidden;
  background-color: var(--bg-page);
}

.pdf-preview {
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  color: var(--text-light);
}

/* File List */
.file-list {
  margin-bottom: 1.5rem;
}

.file-list-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background-color: var(--bg-page);
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
}

.file-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-accent-light);
  border-radius: 0.25rem;
  color: var(--primary-accent);
}

.file-info {
  flex: 1;
}

.file-name {
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.file-size {
  font-size: 0.75rem;
  color: var(--text-light);
}

.file-remove {
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: all 0.2s;
}

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

/* Message Boxes */
.message-box {
  padding: clamp(0.5rem, 2vw, 0.75rem);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: clamp(0.75rem, 2vw, 0.875rem);
  width: 100%;
  animation: slideIn 0.3s ease-out;
}

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

.error-box {
  background-color: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-text);
}

/* Hero Section */
.hero-section {
  padding: clamp(1.5rem, 5vw, 2.5rem) clamp(0.75rem, 3vw, 1rem) clamp(2rem, 5vw, 3.5rem);
  background-image: linear-gradient(120deg, var(--bg-hero-start), var(--bg-hero-end));
  text-align: center;
  width: 100%;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 0 clamp(0.75rem, 3vw, 1rem);
}

.hero-text p {
  font-size: clamp(0.875rem, 3vw, 1.1rem);
  margin-top: 0.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background-color: var(--primary-accent);
  color: white;
  padding: clamp(0.625rem, 2.5vw, 0.75rem) clamp(1.25rem, 4vw, 1.75rem);
  border-radius: 0.5rem;
  font-size: clamp(0.875rem, 2.5vw, 1rem);
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  margin-top: 0.5rem;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(13, 148, 136, 0.1);
}

/* Footer */
.footer {
  text-align: center;
  padding: clamp(1.5rem, 4vw, 2rem) clamp(1rem, 3vw, 1.5rem);
  margin-top: 2rem;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  width: 100%;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 1rem 0;
}

.footer-links a {
  color: var(--text-medium);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--primary-accent);
}

.disclaimer {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 1rem;
}

/* Content Section */
.content-section {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(0.75rem, 3vw, 1rem);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (min-width: 1024px) {
  .content-grid {
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
  }
}

.content-main .card {
  margin-bottom: 1.5rem;
}

/* Info Items */
.info-item {
  margin-bottom: 1.5rem;
}

.info-item h3 {
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.info-item p {
  color: var(--text-medium);
}

/* FAQ Items */
.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.faq-item h3 {
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.faq-item div {
  color: var(--text-medium);
}

/* Tip Items */
.tip-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.tip-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.tip-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-accent-light);
  border-radius: 0.5rem;
  color: var(--primary-accent);
  flex-shrink: 0;
}

.tip-content h3 {
  margin-bottom: 0.25rem;
  color: var(--text-dark);
}

.tip-content p {
  font-size: 0.875rem;
  color: var(--text-medium);
}

/* Action Buttons */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

@media (min-width: 480px) {
  .action-buttons {
    flex-direction: row;
  }
}

.action-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  flex: 1;
}

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

.print-button:hover {
  background-color: #0b8378;
  transform: translateY(-2px);
}

.save-button {
  background-color: var(--bg-page);
  color: var(--text-dark);
  border: 1px solid var(--border-color);
}

.save-button:hover {
  background-color: var(--primary-accent-light);
  border-color: var(--primary-accent);
  transform: translateY(-2px);
}

/* Privacy Notice & Disclaimer */
.privacy-notice, .disclaimer-box {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

.privacy-notice {
  background-color: var(--success-bg);
  border: 1px solid var(--success-text);
}

.disclaimer-box {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-text);
}

.privacy-title, .disclaimer-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.privacy-title {
  color: var(--success-text);
}

.disclaimer-title {
  color: var(--warning-text);
}

.privacy-text, .disclaimer-text {
  font-size: 0.75rem;
  color: var(--text-medium);
}

/* Animations */
.animate-on-load {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards;
}

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

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

/* Focus styles for accessibility */
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--primary-accent);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --bg-page: #FFFFFF;
    --bg-card: #FFFFFF;
    --primary-accent: #000000;
    --text-dark: #000000;
    --text-medium: #333333;
    --border-color: #000000;
  }
}