/* The Quote Cure - Main Stylesheet */

/* CSS Variables */
:root {
  --color-primary: #1565C0;
  --color-secondary: #00BCD4;
  --color-cyan: #1DBDC5;
  --color-gradient-start: #1DBDC5;
  --color-gradient-end: #1565C0;
  --color-sky: #E0F7FA;
  --color-gray: #546E7A;
  --color-white: #FFFFFF;
  --color-black: #263238;
  --color-accent: #FF6B35;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.25);
  --radius: 0.75rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-primary: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(29, 189, 197, 0.9) 0%, rgba(21, 101, 192, 0.9) 100%);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.9rem + 0.3vw, 1.125rem);
  line-height: 1.6;
  color: var(--color-gray);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 1.25rem + 1.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.5rem, 1.125rem + 1vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 1rem + 0.5vw, 1.5rem);
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover, a:focus {
  color: #0f2847;
  text-decoration: underline;
}

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

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

/* Utility Classes */
.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;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 800px;
}

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 1rem 0;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(29, 189, 197, 0.1);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 1rem + 0.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  opacity: 0.8;
}

.nav {
  display: flex;
  gap: clamp(1rem, 0.75rem + 0.5vw, 1.5rem);
  list-style: none;
  flex-wrap: wrap;
}

.nav a {
  font-weight: 500;
  text-decoration: none;
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav a:hover, .nav a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Hero Section */
.hero {
  padding: clamp(3rem, 2rem + 3vw, 6rem) 0;
  background: var(--gradient-primary);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.hero-content h1 {
  margin-bottom: 1.5rem;
  color: var(--color-white);
}

.hero-tagline {
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.5rem);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  min-width: 44px;
  min-height: 44px;
  font-size: 1rem;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  font-weight: 700;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover, .btn-primary:focus {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
  font-weight: 600;
}

.btn-secondary:hover, .btn-secondary:focus {
  background: var(--color-white);
  color: var(--color-primary);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Cards */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

/* Section */
.section {
  padding: clamp(3rem, 2rem + 3vw, 5rem) 0;
}

.section-alt {
  background: linear-gradient(180deg, #E0F7FA 0%, #B2EBF2 100%);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

/* Pull Quote */
.pull-quote {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: clamp(2rem, 1.5rem + 2vw, 4rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pull-quote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.pull-quote blockquote {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 1rem + 1vw, 2rem);
  font-style: italic;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* Author Bio */
.author-bio {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .author-bio {
    grid-template-columns: auto 1fr;
  }
}

.author-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto;
}

/* Rating */
.rating {
  display: flex;
  gap: 0.25rem;
  font-size: 1.5rem;
  color: #fbbf24;
  justify-content: center;
}

.rating-text {
  margin-left: 0.5rem;
  font-weight: 600;
  color: var(--color-gray);
}

/* Reviews */
.review-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.review-name {
  font-weight: 600;
  color: var(--color-primary);
}

.review-rating {
  color: #fbbf24;
}

.review-text {
  margin-bottom: 0.5rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Filter Buttons */
.filter-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  background: var(--color-white);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 2rem;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  min-width: 44px;
  min-height: 44px;
}

.filter-btn:hover, .filter-btn:focus {
  background: var(--color-primary);
  color: var(--color-white);
}

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

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #d1d5db;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: none;
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

/* Accordion */
.accordion {
  border-radius: var(--radius);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid #e5e7eb;
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-button {
  width: 100%;
  padding: 1.5rem;
  background: var(--color-white);
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  min-height: 44px;
}

.accordion-button:hover, .accordion-button:focus {
  background: var(--color-sky);
}

.accordion-button::after {
  content: '+';
  font-size: 1.5rem;
  transition: var(--transition);
}

.accordion-button.active::after {
  content: '−';
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-content-inner {
  padding: 1.5rem;
  background: #f9fafb;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--color-gray);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover, .modal-close:focus {
  color: var(--color-primary);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 1500;
  display: none;
}

.cookie-banner.active {
  display: block;
}

.cookie-banner-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-banner-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #10b981;
  color: var(--color-white);
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  animation: slideIn 0.3s ease;
  display: none;
}

.toast.active {
  display: block;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
}

.footer a {
  color: var(--color-white);
}

.footer a:hover, .footer a:focus {
  color: var(--color-sky);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.875rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}

.social-links a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

/* Contents Grid */
.contents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Book Preview Grid */
.book-preview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .book-preview-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
  }
}

.book-preview-card {
  text-align: center;
}

.contents-item {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
  font-weight: 600;
  color: var(--color-primary);
}

.contents-item:hover, .contents-item:focus {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-md);
}

.step-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

/* Testimonial Rotator */
.testimonial-rotator {
  background: linear-gradient(135deg, #E0F7FA 0%, #B2EBF2 100%);
  padding: 2rem;
  border-radius: var(--radius);
  margin-bottom: 3rem;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.testimonial-slide {
  display: none;
  text-align: center;
}

.testimonial-slide.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.testimonial-quote {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-gray);
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  margin-top: 2rem;
}

.legal-content ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

/* 404 Page */
.error-page {
  text-align: center;
  padding: 4rem 0;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 1rem;
}

/* Responsive Images */
.responsive-img {
  width: 100%;
  height: auto;
}

/* Copy Link Tooltip */
.copy-tooltip {
  position: relative;
  display: inline-block;
}

.copy-tooltip .tooltiptext {
  visibility: hidden;
  background-color: var(--color-black);
  color: var(--color-white);
  text-align: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
}

.copy-tooltip .tooltiptext.show {
  visibility: visible;
  opacity: 1;
}