/* ═══════════════════════════════════════════════════════════
   STACKR SECTIONS — Front-end styles
   Theme-agnostic. Uses CSS custom properties that themes
   can override. DRPG theme variables take precedence.
   ═══════════════════════════════════════════════════════════ */

/* ── Default design tokens (overridable by theme) ─────────── */
:root {
  --vb-primary:       var(--amber,      #E8A838);
  --vb-primary-dark:  var(--amber-dark, #C98E2A);
  --vb-primary-faint: var(--amber-faint,#FDF6E8);
  --vb-dark:          var(--navy,       #0D1B2A);
  --vb-dark-deep:     var(--navy-dark,  #080F17);
  --vb-white:         #ffffff;
  --vb-off-white:     var(--off-white,  #F7F5F0);
  --vb-gray-light:    #e8edf3;
  --vb-gray:          #6b7a8d;
  --vb-text:          #1a2535;
  --vb-font-heading:  var(--font-heading, 'Poppins', sans-serif);
  --vb-font-body:     var(--font-body,    'Inter', sans-serif);
  --vb-radius:        var(--radius,      12px);
  --vb-container:     var(--container,   1200px);
  --vb-section-v:     var(--section-v,   88px);
  --vb-shadow:        0 4px 24px rgba(28,51,86,0.10);
  --vb-transition:    0.22s ease;
}

/* ── Base section ─────────────────────────────────────────── */
.stackr-section {
  width: 100%;
  padding: var(--vb-section-v) 24px;
  box-sizing: border-box;
  font-family: var(--vb-font-body);
  color: var(--vb-text);
}

/* ── Container ────────────────────────────────────────────── */
.stackr-container {
  max-width: var(--vb-container);
  margin: 0 auto;
  width: 100%;
}
.stackr-container--narrow { max-width: 760px; }

/* ── Background variants ──────────────────────────────────── */
.stackr-bg-white  { background: var(--vb-white); }
.stackr-bg-light  { background: var(--vb-off-white); }
.stackr-bg-faint  { background: var(--vb-primary-faint); }
.stackr-bg-dark   { background: var(--vb-dark); }
.stackr-bg-teal   { background: var(--vb-primary); }

/* ── Section header ───────────────────────────────────────── */
.stackr-section-header {
  text-align: center;
  margin-bottom: 48px;
}
.stackr-section-header h2 {
  font-family: var(--vb-font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  color: var(--vb-dark);
  margin: 0 0 12px;
  line-height: 1.25;
}
.stackr-section-header p {
  font-size: 1.05rem;
  color: var(--vb-gray);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Grid ─────────────────────────────────────────────────── */
.stackr-grid {
  display: grid;
  gap: 24px;
}
.stackr-cols-1 { grid-template-columns: 1fr; }
.stackr-cols-2 { grid-template-columns: repeat(2, 1fr); }
.stackr-cols-3 { grid-template-columns: repeat(3, 1fr); }
.stackr-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ── Alignment ────────────────────────────────────────────── */
.stackr-align-center { text-align: center; }
.stackr-align-left   { text-align: left; }

/* ── Buttons ──────────────────────────────────────────────── */
.stackr-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-family: var(--vb-font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--vb-transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.stackr-btn-primary { background: var(--vb-primary); color: white; border-color: var(--vb-primary); }
.stackr-btn-primary:hover { background: var(--vb-primary-dark); border-color: var(--vb-primary-dark); transform: translateY(-1px); }
.stackr-btn-white   { background: white; color: var(--vb-dark); border-color: white; }
.stackr-btn-white:hover { background: var(--vb-off-white); transform: translateY(-1px); }
.stackr-btn-outline { background: transparent; color: white; border-color: rgba(255,255,255,0.6); }
.stackr-btn-outline:hover { border-color: white; background: rgba(255,255,255,0.1); }
.stackr-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.stackr-align-center .stackr-btns { justify-content: center; }

/* ── Rich text content ────────────────────────────────────── */
.stackr-rich { line-height: 1.75; color: var(--vb-gray); font-size: 1rem; }
.stackr-rich p  { margin: 0 0 1em; }
.stackr-rich ul { padding-left: 20px; margin: 0 0 1em; }
.stackr-rich li { margin-bottom: 4px; }
.stackr-rich strong { color: var(--vb-text); font-weight: 600; }
.stackr-rich a  { color: var(--vb-primary); text-decoration: underline; }

/* ═══════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════ */
.stackr-hero {
  position: relative;
  padding: calc(var(--vb-section-v) * 1.5) 24px;
  min-height: 420px;
  display: flex;
  align-items: center;
}
.stackr-hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,30,53,0.55);
}
.stackr-hero__inner {
  position: relative;
  z-index: 2;
}
.stackr-align-center .stackr-hero__inner { text-align: center; }

.stackr-hero__heading {
  font-family: var(--vb-font-heading);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.stackr-hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.6;
  max-width: 600px;
  opacity: 0.85;
  margin: 0 0 4px;
}
.stackr-align-center .stackr-hero__sub { margin-left: auto; margin-right: auto; }
.stackr-hero__btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.stackr-align-center .stackr-hero__btns { justify-content: center; }

/* ═══════════════════════════════════════════════════════════
   CONTENT + IMAGE
   ═══════════════════════════════════════════════════════════ */
.stackr-content-image__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.stackr-img-right .stackr-content-image__text { order: 1; }
.stackr-img-right .stackr-content-image__media { order: 2; }
.stackr-img-left  .stackr-content-image__text  { order: 2; }
.stackr-img-left  .stackr-content-image__media { order: 1; }

.stackr-content-image__text h2 {
  font-family: var(--vb-font-heading);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--vb-dark);
  margin: 0 0 16px;
  line-height: 1.25;
}
.stackr-bg-dark .stackr-content-image__text h2 { color: white; }

.stackr-content-image__media img {
  width: 100%;
  border-radius: var(--vb-radius);
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.stackr-img-placeholder {
  aspect-ratio: 4/3;
  background: var(--vb-gray-light);
  border-radius: var(--vb-radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--vb-gray);
  font-size: 0.85rem;
}

/* ═══════════════════════════════════════════════════════════
   FEATURE GRID
   ═══════════════════════════════════════════════════════════ */
.stackr-feature-card {
  background: white;
  border: 1px solid var(--vb-gray-light);
  border-radius: var(--vb-radius);
  padding: 28px 24px;
  transition: box-shadow var(--vb-transition), transform var(--vb-transition);
}
.stackr-feature-card:hover {
  box-shadow: var(--vb-shadow);
  transform: translateY(-3px);
}
.stackr-bg-light .stackr-feature-card,
.stackr-bg-faint .stackr-feature-card { background: white; }
.stackr-feature-card.stackr-card-dark {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
}
.stackr-feature-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}
.stackr-feature-card h3 {
  font-family: var(--vb-font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--vb-dark);
  margin: 0 0 8px;
}
.stackr-feature-card.stackr-card-dark h3 { color: white; }
.stackr-feature-card p {
  font-size: 0.9rem;
  color: var(--vb-gray);
  line-height: 1.65;
  margin: 0;
}
.stackr-feature-card.stackr-card-dark p { color: rgba(255,255,255,0.65); }

/* ═══════════════════════════════════════════════════════════
   TESTIMONIALS
   ═══════════════════════════════════════════════════════════ */
.stackr-testimonial-card {
  background: white;
  border: 1px solid var(--vb-gray-light);
  border-radius: var(--vb-radius);
  padding: 28px;
}
.stackr-testimonial-card.stackr-card-dark {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.1);
}
.stackr-testimonial-card__quote {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--vb-text);
  margin-bottom: 20px;
  font-style: italic;
  position: relative;
  padding-left: 20px;
}
.stackr-testimonial-card.stackr-card-dark .stackr-testimonial-card__quote { color: rgba(255,255,255,0.85); }
.stackr-testimonial-card__quote::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -4px;
  font-size: 2rem;
  color: var(--vb-primary);
  font-style: normal;
  line-height: 1;
}
.stackr-testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.stackr-testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--vb-primary);
  color: white;
  font-family: var(--vb-font-heading);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stackr-testimonial-card__author strong {
  display: block;
  font-size: 0.88rem;
  color: var(--vb-dark);
  font-family: var(--vb-font-heading);
}
.stackr-testimonial-card.stackr-card-dark .stackr-testimonial-card__author strong { color: white; }
.stackr-testimonial-card__author span {
  font-size: 0.8rem;
  color: var(--vb-gray);
}

/* ═══════════════════════════════════════════════════════════
   STATS BAR
   ═══════════════════════════════════════════════════════════ */
.stackr-stats-bar { padding: calc(var(--vb-section-v) * 0.7) 24px; }
.stackr-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
}
.stackr-stat {
  padding: 24px;
  text-align: center;
  border-left: 1px solid rgba(255,255,255,0.08);
}
.stackr-stat:first-child { border-left: none; }
.stackr-bg-light .stackr-stat { border-left-color: var(--vb-gray-light); }

.stackr-stat__number {
  font-family: var(--vb-font-heading);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--vb-primary);
  line-height: 1;
  margin-bottom: 8px;
}
.stackr-bg-light .stackr-stat__number { color: var(--vb-dark); }
.stackr-stat__label {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.stackr-bg-light .stackr-stat__label { color: var(--vb-gray); }

/* ═══════════════════════════════════════════════════════════
   CTA BAND
   ═══════════════════════════════════════════════════════════ */
.stackr-cta-band { padding: calc(var(--vb-section-v) * 0.9) 24px; }
.stackr-cta-band__inner { text-align: center; }
.stackr-cta-band h2 {
  font-family: var(--vb-font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2.4rem);
  font-weight: 800;
  color: white;
  margin: 0 0 12px;
  line-height: 1.2;
}
.stackr-cta-band p {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.65;
}
.stackr-cta-band .stackr-btns { justify-content: center; }

/* ═══════════════════════════════════════════════════════════
   TEXT BLOCK
   ═══════════════════════════════════════════════════════════ */
.stackr-text-block h2 {
  font-family: var(--vb-font-heading);
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  font-weight: 700;
  color: var(--vb-dark);
  margin: 0 0 20px;
}
.stackr-align-center .stackr-text-block h2 { text-align: center; }

/* ═══════════════════════════════════════════════════════════
   SPACER
   ═══════════════════════════════════════════════════════════ */
.stackr-spacer {
  position: relative;
  display: flex;
  align-items: center;
}
.stackr-spacer__line {
  width: 100%;
  max-width: var(--vb-container);
  margin: 0 auto;
  height: 1px;
  background: var(--vb-gray-light);
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .stackr-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .stackr-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .stackr-content-image__inner { grid-template-columns: 1fr; gap: 32px; }
  .stackr-img-left .stackr-content-image__text  { order: 1; }
  .stackr-img-left .stackr-content-image__media { order: 2; }
}

@media (max-width: 600px) {
  .stackr-section { padding: 56px 20px; }
  .stackr-cols-2,
  .stackr-cols-3,
  .stackr-cols-4 { grid-template-columns: 1fr; }
  .stackr-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stackr-stat:nth-child(odd) { border-left: none; }
  .stackr-hero { min-height: 320px; }
  .stackr-hero__heading { font-size: 1.8rem; }
  .stackr-btn { padding: 11px 20px; font-size: 0.85rem; }
  .stackr-btns,
  .stackr-hero__btns { flex-direction: column; align-items: flex-start; }
  .stackr-align-center .stackr-btns,
  .stackr-align-center .stackr-hero__btns { align-items: center; }
  .stackr-section-header { margin-bottom: 32px; }
}