/* ==========================================================================
   ThreeStepTech Growth — Site-Specific Styles
   Shared styles are in css/variables.css and css/base.css (synced from shared/)
   ========================================================================== */

/* --------------------------------------------------------------------------
   All sections — ensure they sit above the fixed tubes canvas
   -------------------------------------------------------------------------- */
.section {
  position: relative;
  z-index: 10;
}

/* --------------------------------------------------------------------------
   Growth Hero
   -------------------------------------------------------------------------- */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  position: relative;
  z-index: 10;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-glow--green {
  top: -10%;
  right: -5%;
  background: var(--color-primary);
}

.hero-glow--purple {
  bottom: -10%;
  left: -5%;
  background: var(--color-complementary);
}

.hero {
  text-align: center;
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: var(--font-size-body);
  color: var(--color-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Stats Strip (icon + label style)
   -------------------------------------------------------------------------- */
.stats-section {
  position: relative;
  z-index: 20;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.stats-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  max-width: 200px;
}

.stat-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--font-size-small);
  color: var(--color-muted);
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--glass-border);
}

/* --------------------------------------------------------------------------
   Utility: text-complementary
   -------------------------------------------------------------------------- */
.text-complementary {
  color: var(--color-complementary);
}

/* --------------------------------------------------------------------------
   Features Grid
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--glass-bg-light);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--spacing-xl);
  transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
}

.feature-card:nth-child(even):hover {
  border-color: var(--color-complementary);
  box-shadow: var(--glow-complementary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sharp);
  margin-bottom: var(--spacing-lg);
}

.feature-card:nth-child(even) .feature-icon {
  background: rgba(var(--color-complementary-rgb), 0.1);
  color: var(--color-complementary);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-card h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.feature-card p {
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Timeline — The First 14 Days
   -------------------------------------------------------------------------- */
.timeline-section {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--glass-border);
}

ul.timeline {
  position: relative;
  width: 660px;
  margin: 0 auto;
  padding: 1em 0;
  list-style-type: none;
}

ul.timeline:before {
  position: absolute;
  left: 50%;
  top: 0;
  content: '';
  display: block;
  width: 3px;
  height: 100%;
  margin-left: -1.5px;
  background: linear-gradient(
    to bottom,
    rgba(var(--color-primary-rgb), 0) 0%,
    rgba(var(--color-primary-rgb), 0.5) 8%,
    rgba(var(--color-complementary-rgb), 0.5) 50%,
    rgba(var(--color-primary-rgb), 0.5) 92%,
    rgba(var(--color-primary-rgb), 0) 100%
  );
  z-index: 5;
}

.timeline li {
  padding: 1em 0;
}

.timeline li:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}

.direction-l {
  position: relative;
  width: 300px;
  float: left;
  text-align: right;
}

.direction-r {
  position: relative;
  width: 300px;
  float: right;
}

.flag-wrapper {
  position: relative;
  display: inline-block;
  text-align: center;
}

.flag {
  position: relative;
  display: inline;
  background: var(--glass-bg-light);
  border: 1px solid var(--glass-border);
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  color: var(--color-text);
}

.direction-l .flag {
  box-shadow: 0 0 15px rgba(var(--color-complementary-rgb), 0.1);
}

.direction-r .flag {
  box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.1);
}

/* Timeline node dots */
.direction-l .flag:before,
.direction-r .flag:before {
  position: absolute;
  top: 50%;
  right: -40px;
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  margin-top: -10px;
  background: var(--color-background);
  border-radius: 10px;
  border: 3px solid var(--color-primary);
  z-index: 10;
}

.direction-r .flag:before {
  left: -40px;
  right: auto;
  border-color: var(--color-primary);
}

.direction-l .flag:before {
  border-color: var(--color-complementary);
}

/* Arrow connectors */
.direction-l .flag:after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-left-color: var(--glass-border);
  border-width: 8px;
  pointer-events: none;
}

.direction-r .flag:after {
  content: "";
  position: absolute;
  right: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-right-color: var(--glass-border);
  border-width: 8px;
  pointer-events: none;
}

/* Time badges */
.time-wrapper {
  display: inline;
  line-height: 1em;
  font-size: 0.7em;
  vertical-align: middle;
}

.direction-l .time-wrapper {
  float: left;
}

.direction-r .time-wrapper {
  float: right;
}

.time {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.direction-l .time {
  background: rgba(var(--color-complementary-rgb), 0.1);
  color: var(--color-complementary);
}

/* Timeline descriptions */
.desc {
  margin: 1em 0.75em 0 0;
  font-size: 0.85em;
  line-height: 1.6;
  color: var(--color-muted);
}

.direction-r .desc {
  margin: 1em 0 0 0.75em;
}

/* Timeline footnote */
.timeline-footnote {
  text-align: center;
  color: var(--color-muted);
  font-size: var(--font-size-small);
  margin-top: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Growth Engine (Process Section)
   -------------------------------------------------------------------------- */
.engine-section {
  position: relative;
  z-index: 10;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.process-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.process-number {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 700;
  color: rgba(var(--color-primary-rgb), 0.1);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.process-card:nth-child(2) .process-number {
  color: rgba(var(--color-complementary-rgb), 0.1);
}

.process-icon {
  width: 64px;
  height: 64px;
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin: 0 auto var(--spacing-md);
}

.process-card:nth-child(2) .process-icon {
  background: rgba(var(--color-complementary-rgb), 0.1);
  color: var(--color-complementary);
}

.process-card:nth-child(3) .process-icon {
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
}

.process-icon svg {
  width: 32px;
  height: 32px;
}

.process-card h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.process-card p {
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.6;
  max-width: 300px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Callout Section
   -------------------------------------------------------------------------- */
.callout-section {
  position: relative;
  z-index: 10;
}

.callout-card {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.callout-card h2 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.callout-card p {
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

/* --------------------------------------------------------------------------
   FAQ Section
   -------------------------------------------------------------------------- */
.faq-section {
  position: relative;
  z-index: 10;
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.faq-item {
  background: var(--glass-bg-light);
  backdrop-filter: var(--glass-blur-light);
  -webkit-backdrop-filter: var(--glass-blur-light);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.faq-item[data-color="purple"].active {
  border-color: rgba(var(--color-complementary-rgb), 0.4);
  box-shadow: 0 0 20px rgba(var(--color-complementary-rgb), 0.15);
}

.faq-item[data-color="green"].active {
  border-color: rgba(var(--color-primary-rgb), 0.4);
  box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.15);
}

.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  gap: var(--spacing-md);
}

.faq-header h3 {
  font-size: 1rem;
  font-weight: 500;
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-muted);
  min-width: 24px;
  text-align: center;
  transition: color var(--transition-fast);
}

.faq-item[data-color="purple"] .faq-toggle {
  color: var(--color-complementary);
}

.faq-item[data-color="green"] .faq-toggle {
  color: var(--color-primary);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium), padding var(--transition-medium);
}

.faq-item.active .faq-content {
  max-height: 300px;
  padding: 0 var(--spacing-lg) var(--spacing-md);
}

.faq-content p {
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
  background-color: var(--color-background);
  position: relative;
  z-index: 100;
}

.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-form-container {
  text-align: left;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }

  .process-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .stats-container {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }

  .stat-divider {
    display: none;
  }

  .stat-item {
    width: 45%;
  }
}

/* Timeline responsive — left-aligned vertical line */
@media screen and (max-width: 660px) {
  ul.timeline {
    width: 100%;
    padding: 1em 0 1em 1.5em;
  }

  ul.timeline:before {
    left: 0;
    margin-left: 0;
  }

  .direction-l,
  .direction-r {
    float: none;
    width: 100%;
    text-align: left;
  }

  .direction-l .flag:before,
  .direction-r .flag:before {
    left: -34px;
    right: auto;
  }

  .direction-l .flag:after {
    left: auto;
    right: 100%;
    border-left-color: transparent;
    border-right-color: var(--glass-border);
  }

  .direction-l .time-wrapper {
    float: none;
  }

  .timeline .desc,
  .direction-r .desc {
    margin: 0.75em 0 0 0;
  }
}