/* ============================================
   Hero Section
   ============================================ */

.hero {
  padding: calc(var(--section-padding) + 80px) 0 var(--section-padding);
  position: relative;
  overflow: hidden;
}

/* Primary glow — top right, blue */
.hero::before {
  content: '';
  position: absolute;
  top: -300px;
  right: -200px;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.7;
  animation: fadeIn 1.5s ease both;
}

/* Secondary glow — bottom left, purple */
.hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -300px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-secondary-glow, rgba(139, 92, 246, 0.15)) 0%, transparent 65%);
  pointer-events: none;
  opacity: 0.5;
  animation: fadeIn 2s ease 0.3s both;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero__content {
  max-width: 560px;
}

.hero__badge {
  margin-bottom: var(--space-6);
}

.hero__title {
  margin-bottom: var(--space-6);
}

.hero__title span {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary, #8b5cf6) 50%, var(--color-accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

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

.hero__meta span {
  margin: 0 var(--space-2);
}

/* Hero code comparison */
.hero__code {
  position: relative;
}

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

.hero__code-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.hero__code-label--before {
  color: var(--color-error);
}

.hero__code-label--better {
  color: var(--color-warning);
}

.hero__code-label--after {
  color: var(--color-success);
}

@media (max-width: 1023px) {
  .hero {
    padding: calc(var(--section-padding) + 40px) 0 var(--section-padding);
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .hero__content {
    max-width: 100%;
    text-align: center;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__meta {
    text-align: center;
  }
}

@media (max-width: 639px) {
  .hero {
    padding: calc(var(--section-padding) + 20px) 0 var(--space-12);
  }

  .hero__title {
    font-size: var(--text-2xl);
  }

  .hero__subtitle {
    font-size: var(--text-base);
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero__code-label {
    font-size: 0.6rem;
  }

  .hero__code-comparison .code-block pre {
    font-size: 0.7rem;
  }
}

/* ============================================
   Problem Section
   ============================================ */

.problems {
  background: var(--color-bg-alt);
  transition: background-color var(--transition-theme);
}

.problems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

@media (max-width: 767px) {
  .problems__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Features Section
   ============================================ */

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

@media (max-width: 1023px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .features__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Workflow Section
   ============================================ */

.workflow {
  background: var(--color-bg-alt);
  transition: background-color var(--transition-theme);
}

.workflow__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

/* Connector line between steps */
.workflow__steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(16.666% + 24px);
  right: calc(16.666% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-glow), var(--color-border-strong), var(--color-accent-glow));
}

.workflow__step {
  text-align: center;
  display: flex;
  flex-direction: column;
}


.workflow__step .code-block {
  text-align: left;
}

.workflow__step .code-block pre {
  font-size: var(--text-xs);
  min-height: 270px;
}

.workflow__step-number {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary, #8b5cf6));
  color: #fff;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  border-radius: 50%;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--color-bg-alt), 0 0 30px var(--color-accent-glow);
}

.workflow__step-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.workflow__step-desc {
  flex: 1;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--leading-relaxed);
}


@media (max-width: 1023px) {
  .workflow__steps {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .workflow__steps::before {
    display: none;
  }

  .workflow__step-number {
    box-shadow: none;
  }

  .workflow__step .code-block pre {
    min-height: auto;
  }

  .workflow__step-desc {
    max-width: 100%;
  }
}

@media (max-width: 639px) {
  .workflow__step-number {
    width: 48px;
    height: 48px;
    font-size: var(--text-lg);
  }

  .workflow__step-title {
    font-size: var(--text-lg);
  }
}

/* ============================================
   Installation Section
   ============================================ */

.install__methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  align-items: stretch;
}

.install__methods .install__method {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.install__methods .code-block {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.install__methods .code-block pre {
  flex: 1;
  font-size: var(--text-xs);
  word-break: break-all;
  white-space: pre-wrap;
}

.install__method {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.install__method:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.install__method--recommended {
  border-color: var(--color-accent);
  position: relative;
  box-shadow: 0 4px 24px var(--color-accent-glow), 0 0 0 1px var(--color-accent-glow);
}

.install__method--recommended:hover {
  box-shadow: 0 8px 32px var(--color-accent-glow), 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.install__method--recommended::after {
  content: 'Recommended';
  position: absolute;
  top: -10px;
  left: var(--space-6);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-accent);
  background: var(--color-bg);
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
}

.install__method-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.install__method-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.install__steps {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  list-style: decimal;
  padding: var(--space-5) var(--space-6) var(--space-5) calc(var(--space-6) + var(--space-5));
  margin: 0;
  background: var(--color-bg-code);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  flex: 1;
}

.install__steps li {
  padding-left: var(--space-1);
  font-size: var(--text-xs);
}

.install__requirements {
  text-align: center;
  margin-top: var(--space-10);
  padding: var(--space-5) var(--space-6);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.install__requirements strong {
  color: var(--color-text);
}

@media (max-width: 1023px) {
  .install__methods {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 639px) {
  .install__method {
    padding: var(--space-6);
  }

  .install__requirements {
    font-size: var(--text-xs);
    padding: var(--space-4);
  }
}

/* ============================================
   Open Source Banner
   ============================================ */

.oss-banner {
  background: var(--color-bg-alt);
  transition: background-color var(--transition-theme);
}

.oss-banner__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.oss-banner__item-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.oss-banner__item-icon svg {
  width: 24px;
  height: 24px;
}

.oss-banner__item-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.oss-banner__item-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 639px) {
  .oss-banner__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}