@import './variables.css';

/* CSS Reset & Box Sizing */
*, *::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-sans);
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(circle at 15% -5%, rgba(0, 196, 204, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 5%, rgba(125, 42, 232, 0.10) 0%, transparent 50%),
    radial-gradient(circle at 50% 60%, rgba(0, 196, 204, 0.05) 0%, transparent 60%);
  background-repeat: no-repeat;
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.25rem);
  letter-spacing: -0.035em;
  font-weight: var(--font-weight-extrabold);
}

h2 {
  font-size: clamp(1.65rem, 3.5vw, 2.25rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: var(--font-size-lg);
  letter-spacing: -0.02em;
  font-weight: var(--font-weight-semibold);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

/* Vibrant Gradient Text */
.gradient-text {
  background: var(--gradient-canva);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-canva-cyan);
  outline-offset: 2px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.brand-badge-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--gradient-canva);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(0, 196, 204, 0.3);
}

.brand-logo-img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 196, 204, 0.28);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.brand-link:hover .brand-logo-img {
  transform: scale(1.08) rotate(3deg);
  box-shadow: 0 6px 16px rgba(125, 42, 232, 0.35);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-canva-purple);
}

@media (max-width: 768px) {
  .site-nav {
    overflow-x: auto;
    gap: var(--space-4);
    scrollbar-width: none;
    -ms-overflow-style: none;
    white-space: nowrap;
    margin-left: var(--space-4);
  }
  .site-nav::-webkit-scrollbar {
    display: none;
  }
}

/* Hero Section */
.hero-section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
  position: relative;
}

@media (min-width: 768px) {
  .hero-section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-20);
  }
}

.hero-content {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.hero-subtitle {
  margin-top: var(--space-4);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Typographic Metadata Bar */
.hero-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.meta-divider {
  color: var(--color-border);
  user-select: none;
}

/* Hero Visual Banner Frame */
.hero-image-wrapper {
  margin-top: var(--space-10);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-image);
  border: 1px solid rgba(255, 255, 255, 0.8);
  position: relative;
  background-color: var(--color-surface);
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  aspect-ratio: 1376 / 768;
  display: block;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.015);
}

/* Section Common Styling */
main {
  flex: 1;
}

.section-block {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section-divider {
  border: 0;
  height: 1px;
  background-color: var(--color-border);
}

.section-header {
  margin-bottom: var(--space-10);
}

.section-header.text-center {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  margin-top: var(--space-2);
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}

/* Features Unlocked Grid */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.feature-box:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 196, 204, 0.4);
  box-shadow: 0 10px 24px -4px rgba(0, 196, 204, 0.08);
}

.feature-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.feature-icon-badge.cyan { background: linear-gradient(135deg, #00c4cc, #0284c7); }
.feature-icon-badge.purple { background: linear-gradient(135deg, #7d2ae8, #a855f7); }
.feature-icon-badge.pink { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.feature-icon-badge.amber { background: linear-gradient(135deg, #f59e0b, #d97706); }
.feature-icon-badge.emerald { background: linear-gradient(135deg, #10b981, #059669); }
.feature-icon-badge.indigo { background: linear-gradient(135deg, #6366f1, #4f46e5); }

.feature-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.feature-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* Template Showcase Gallery Section */
.templates-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 992px) {
  .templates-layout {
    grid-template-columns: 1fr 1.15fr;
  }
}

.templates-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.template-category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.category-text-tag {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-canva-purple);
  padding: 4px 10px;
  background-color: rgba(125, 42, 232, 0.08);
  border-radius: var(--radius-full);
}

.templates-image-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-image);
  border: 1px solid var(--color-border);
}

.templates-image-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 1376 / 768;
  display: block;
}

/* Device Compatibility Section */
.devices-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-top: var(--space-6);
}

.device-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
}

.device-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* Reviews / Community Feedback Section */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.review-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.review-stars {
  color: #f59e0b;
  display: flex;
  gap: 2px;
}

.review-quote {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-canva);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
}

.author-name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.author-role {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* How It Works Section */
.steps-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  list-style: none;
}

@media (min-width: 768px) {
  .steps-list {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

.step-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 2px solid var(--color-canva-cyan);
}

.step-number {
  font-size: var(--font-size-xs);
  font-family: var(--font-mono);
  font-weight: var(--font-weight-bold);
  color: var(--color-canva-purple);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.step-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* FAQ Section */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
}

.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  transition: color 0.15s ease;
}

.faq-summary:hover {
  color: var(--color-canva-purple);
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-content {
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Confetti Canvas Container */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
}

/* Site Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-disclaimer {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  max-width: 620px;
  line-height: var(--line-height-relaxed);
}

.footer-links {
  display: flex;
  gap: var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-links a:hover {
  color: var(--color-canva-purple);
}