/* ============================================
   PAGES.CSS — Inner pages layout & components
   Requires: base.css loaded first

   Usage pattern:
     <link rel="stylesheet" href="/css/base.css">
     <link rel="stylesheet" href="/css/pages.css">

   Every inner page gets: page-hero, page-layout
   (sidebar + page-content). Add content blocks
   from the component library below as needed.
   ============================================ */

/* ============================================
   PAGE HERO (inner page banner)
   ============================================ */
.page-hero {
  padding-block-start: calc(var(--sp-32) + var(--sp-6));
  padding-block-end: var(--sp-16);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}
.page-hero__ambient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 80% at 5% 60%, rgba(0, 212, 255, 0.06) 0%, transparent 65%);
  pointer-events: none;
}
/* Bottom accent line */
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-blue), transparent);
  opacity: 0.3;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--sp-6);
  position: relative;
  z-index: 1;
}
.page-hero__breadcrumb-sep  { opacity: 0.4; }
.page-hero__breadcrumb-link { transition: color var(--ease-fast); }
.page-hero__breadcrumb-link:hover { color: var(--color-blue); }
.page-hero__breadcrumb-current { color: var(--color-blue); }

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.page-hero__title {
  font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
  font-weight: var(--fw-bold);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--sp-4);
}
.page-hero__subtitle {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: var(--leading-relaxed);
}
.page-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}
.page-hero__meta-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ============================================
   PAGE LAYOUT (sidebar + content)
   ============================================ */
.page-layout {
  padding-block: var(--section-pad);
  display: grid;
  grid-template-columns: 268px 1fr;
  gap: var(--sp-12);
  align-items: start;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  position: sticky;
  top: calc(var(--sp-16) + var(--sp-4));
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

/* Section nav */
.sidebar-nav {
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--color-bg-card);
}
.sidebar-nav__heading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--sp-3) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
}
.sidebar-nav__item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--ease-fast), color var(--ease-fast);
  cursor: pointer;
}
.sidebar-nav__item:last-child { border-bottom: none; }
.sidebar-nav__item:hover,
.sidebar-nav__item.is-active {
  color: var(--color-blue);
  background: var(--color-blue-dim);
}
/* Sidebar nav link variant (used on service pages) */
.sidebar-nav__link {
  display: block;
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--ease-fast), color var(--ease-fast);
}
.sidebar-nav__link:last-child { border-bottom: none; }
.sidebar-nav__link:hover,
.sidebar-nav__link.is-active {
  color: var(--color-blue);
  background: var(--color-blue-dim);
}

.sidebar-nav__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-border-bright);
  flex-shrink: 0;
  transition: background var(--ease-fast), box-shadow var(--ease-fast);
}
.sidebar-nav__item:hover .sidebar-nav__dot,
.sidebar-nav__item.is-active .sidebar-nav__dot {
  background: var(--color-blue);
  box-shadow: 0 0 6px var(--color-blue);
}

/* Sidebar CTA widget */
.sidebar-cta {
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  background: var(--color-bg-card);
}
.sidebar-cta__title {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-2);
}
.sidebar-cta__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--sp-4);
}

/* ============================================
   PAGE CONTENT AREA
   ============================================ */
.page-content { min-width: 0; }

/* Content section block */
.content-block {
  margin-bottom: var(--sp-16);
  scroll-margin-top: calc(var(--sp-16) + var(--sp-4));
}
.content-block__title {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl));
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
  position: relative;
}
.content-block__title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 40px;
  height: 2px;
  background: var(--color-blue);
}
.content-block__body {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}
.content-block__body p + p { margin-top: var(--sp-4); }

/* ============================================
   FEATURE LIST
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}
.feature-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-4);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  background: var(--color-bg-card);
  transition: border-color var(--ease-fast);
}
.feature-item:hover { border-color: var(--color-blue-border); }
.feature-item__check {
  width: 20px; height: 20px;
  border-radius: var(--r-sm);
  background: var(--color-blue-dim);
  border: 1px solid var(--color-blue-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  font-size: 10px;
  flex-shrink: 0;
  margin-top: 1px;
}
.feature-item__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   INFO CARDS GRID
   ============================================ */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}
.info-card {
  padding: var(--sp-6);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  background: var(--color-bg-card);
  transition: all var(--ease-cubic);
}
.info-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-blue-border);
  box-shadow: 0 8px 28px rgba(0,212,255,0.10);
}
.info-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: var(--sp-4);
  color: var(--color-blue);
}
.info-card__title {
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-2);
}
.info-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================
   PRICING TABLE
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}
.pricing-card {
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  background: var(--color-bg-card);
  transition: all var(--ease-cubic);
  position: relative;
}
.pricing-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-blue-border);
  box-shadow: var(--glow-blue);
}
/* Featured variant */
.pricing-card--featured {
  --border-angle: 0deg;
  border: 1px solid transparent;
  background:
    linear-gradient(160deg, var(--color-blue-dim) 0%, var(--color-bg-card) 100%) padding-box,
    conic-gradient(
      from var(--border-angle),
      rgba(0, 212, 255, 0.1) 0%,
      rgba(0, 212, 255, 0.65) 25%,
      rgba(124, 92, 255, 0.55) 50%,
      rgba(57, 255, 20, 0.45) 75%,
      rgba(0, 212, 255, 0.1) 100%
    ) border-box;
  animation: border-rotate 5s linear infinite;
}
.pricing-card--featured:hover { border-color: transparent; }
.pricing-card--featured .pricing-card__popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  background: var(--color-blue);
  color: var(--color-bg-primary);
  padding: 2px var(--sp-3);
  border-radius: var(--r-sm);
  white-space: nowrap;
}

.pricing-card__tier {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-3);
}
.pricing-card__price {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  line-height: 1;
}
.pricing-card__period {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--sp-5);
  margin-top: var(--sp-1);
}
.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}
.pricing-card__feat {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}
.pricing-card__feat-icon { color: var(--color-green); flex-shrink: 0; font-size: 11px; }

/* ============================================
   FAQ / ACCORDION
   ============================================ */
.faq { margin-top: var(--sp-6); }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--color-bg-card);
  transition: border-color var(--ease-fast);
  margin-bottom: var(--sp-2);
}
.faq-item.is-open { border-color: var(--color-blue-border); }

.faq-item__q {
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  cursor: pointer;
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  user-select: none;
}
.faq-item__icon {
  width: 22px; height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  transition: transform var(--ease-base), color var(--ease-base);
  flex-shrink: 0;
  line-height: 1;
}
.faq-item.is-open .faq-item__icon {
  transform: rotate(45deg);
  color: var(--color-blue);
}

.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--ease-base);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}
.faq-item.is-open .faq-item__a { max-height: 320px; }
.faq-item__a-inner { padding: 0 var(--sp-5) var(--sp-5); }

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form {
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  background: var(--color-bg-card);
  margin-top: var(--sp-6);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-muted); }
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.10);
  outline: none;
}

.form-input--error,
.form-textarea--error {
  border-color: #ff4d4d;
  box-shadow: 0 0 0 3px rgba(255, 77, 77, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23555570' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-4) center;
  padding-right: var(--sp-10);
  cursor: pointer;
}

/* ============================================
   PROCESS / TIMELINE
   ============================================ */
.timeline { margin-top: var(--sp-6); }
.timeline-item {
  display: flex;
  gap: var(--sp-5);
  position: relative;
  padding-bottom: var(--sp-8);
}
.timeline-item:last-child { padding-bottom: 0; }

/* Vertical connector line */
.timeline-item::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 18px;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
}
.timeline-item:last-child::before { display: none; }

.timeline-item__num {
  width: 36px; height: 36px;
  border-radius: var(--r-md);
  border: 1px solid var(--color-blue-border);
  background: var(--color-blue-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-blue);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.timeline-item__title {
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-1);
}
.timeline-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================
   CALLOUT / ALERT BANNERS
   ============================================ */
.callout {
  padding: var(--sp-5) var(--sp-6);
  border-radius: var(--r-md);
  border: 1px solid;
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
  margin-block: var(--sp-6);
}
.callout--blue  { border-color: var(--color-blue-border);  background: var(--color-blue-dim); }
.callout--green { border-color: var(--color-green-border); background: var(--color-green-dim);}

.callout__icon { flex-shrink: 0; margin-top: 1px; }
.callout--blue  .callout__icon { color: var(--color-blue); }
.callout--green .callout__icon { color: var(--color-green); }
.callout__title {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-1);
}
.callout--blue  .callout__title { color: var(--color-blue); }
.callout--green .callout__title { color: var(--color-green);}
.callout__body { font-size: var(--text-sm); color: var(--color-text-secondary); }

/* ============================================
   TECH TAG LIST
   ============================================ */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.tech-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--sp-1) var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--r-sm);
  color: var(--color-text-muted);
  background: var(--color-bg-tertiary);
  transition: all var(--ease-fast);
}
.tech-tag:hover { color: var(--color-blue); border-color: var(--color-blue-border); }

/* ============================================
   RESPONSIVE — pages-specific
   ============================================ */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none; /* nav handled by page anchor links; CTA duplicated by the callout at the bottom of the content */
  }

  .feature-grid  { grid-template-columns: 1fr; }
  .info-cards    { grid-template-columns: 1fr 1fr; }
  .pricing-grid  { grid-template-columns: 1fr; max-width: 400px; }
}

@media (max-width: 768px) {
  .page-hero { padding-block-start: calc(var(--sp-24) + var(--sp-4)); }
  .form-grid { grid-template-columns: 1fr; }
  .form-group--full { grid-column: 1; }
  .contact-form { padding: var(--sp-6); }
}

@media (max-width: 480px) {
  .info-cards { grid-template-columns: 1fr; }
}

/* ============================================
   CONTACT CARDS
   ============================================ */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

.contact-link { color: var(--color-blue); }
.contact-link:hover { color: var(--color-text-primary); }

@media (max-width: 600px) {
  .contact-cards { grid-template-columns: 1fr; }
}

/* ============================================
   ABOUT STATS GRID
   ============================================ */
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--color-bg-card);
  margin-bottom: var(--sp-10);
}
.about-stat {
  padding: var(--sp-8) var(--sp-6);
  text-align: center;
  border-right: 1px solid var(--color-border);
  transition: background var(--ease-fast);
}
.about-stat:last-child { border-right: none; }
.about-stat:hover { background: var(--color-bg-card-hover); }
.about-stat__value {
  display: block;
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--color-blue);
  text-shadow: 0 0 24px rgba(0, 212, 255, 0.45);
  line-height: 1;
  margin-bottom: var(--sp-2);
}
.about-stat__label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

@media (max-width: 640px) {
  .about-stats {
    grid-template-columns: 1fr 1fr;
  }
  .about-stat:nth-child(2) { border-right: none; }
  .about-stat:nth-child(1),
  .about-stat:nth-child(2) { border-bottom: 1px solid var(--color-border); }
}

/* ============================================
   UTILITY MODIFIERS (no inline styles needed)
   ============================================ */
.btn--block   { width: 100%; justify-content: center; }
.btn--callout { margin-top: var(--sp-4); }