/* ============================================================
   Progress Platform — Components v1.0
   Requires design-system.css
   ============================================================ */

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--pg-r);
  transition: background var(--pg-t-fast), color var(--pg-t-fast),
              box-shadow var(--pg-t-fast), transform var(--pg-t-fast);
  cursor: pointer;
  text-decoration: none;
  border: 1.5px solid transparent;
}
.btn:active { transform: scale(.98); }
.btn:focus-visible {
  outline: 2px solid var(--pg-blue);
  outline-offset: 3px;
}

/* Sizes */
.btn-sm  { padding: 9px 18px;  font-size: 0.8125rem; }
.btn-md  { padding: 12px 24px; font-size: 0.9375rem; }
.btn-lg  { padding: 15px 32px; font-size: 1rem;      }

/* Primary */
.btn-primary {
  background: var(--pg-blue);
  color: #fff;
  border-color: var(--pg-blue);
}
.btn-primary:hover {
  background: var(--pg-blue-dk);
  border-color: var(--pg-blue-dk);
  box-shadow: 0 4px 12px rgba(37,99,235,.32);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--pg-text);
  border-color: var(--pg-border);
}
.btn-ghost:hover {
  background: var(--pg-gray-100);
  border-color: var(--pg-gray-300);
}

/* Ghost on dark background */
.btn-ghost-white {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-color: rgba(255,255,255,.2);
}
.btn-ghost-white:hover {
  background: rgba(255,255,255,.14);
  border-color: rgba(255,255,255,.35);
}

/* LINE CTA */
.btn-line {
  background: var(--pg-line);
  color: #fff;
  border-color: var(--pg-line);
}
.btn-line:hover {
  background: var(--pg-line-dk);
  border-color: var(--pg-line-dk);
  box-shadow: 0 4px 12px rgba(6,199,85,.28);
}

/* ── Navigation ─────────────────────────────────────────────── */
#pg-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--pg-nav-h);
  z-index: var(--pg-z-nav);
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--pg-t), box-shadow var(--pg-t);
}
#pg-nav.scrolled {
  border-bottom-color: var(--pg-border);
  box-shadow: var(--pg-sh-sm);
}

.pg-nav-inner {
  display: flex;
  align-items: center;
  max-width: var(--pg-container);
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--pg-px);
  gap: 32px;
}

.pg-nav-logo {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--pg-black);
  flex-shrink: 0;
}
.pg-nav-logo .logo-dot { color: var(--pg-blue); }

.pg-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.pg-nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--pg-text-2);
  padding: 6px 10px;
  border-radius: var(--pg-r);
  transition: color var(--pg-t-fast), background var(--pg-t-fast);
}
.pg-nav-links a:hover {
  color: var(--pg-text);
  background: var(--pg-gray-100);
}
.pg-nav-links a.active {
  color: var(--pg-blue);
  background: var(--pg-blue-soft);
}

.pg-nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Burger */
#pg-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px; height: 40px;
  gap: 5px;
  border-radius: var(--pg-r);
  transition: background var(--pg-t-fast);
}
#pg-burger:hover { background: var(--pg-gray-100); }
#pg-burger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--pg-text);
  border-radius: 1px;
  transition: transform .25s var(--pg-ease), opacity .15s ease;
}
#pg-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#pg-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
#pg-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Nav ─────────────────────────────────────────────── */
#pg-mob-nav {
  position: fixed;
  top: var(--pg-nav-h);
  left: 0; right: 0;
  z-index: calc(var(--pg-z-nav) - 1);
  background: var(--pg-bg);
  border-bottom: 1px solid var(--pg-border);
  padding: 16px var(--pg-px) 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform .3s var(--pg-ease), opacity .25s ease;
  box-shadow: var(--pg-sh-md);
}
#pg-mob-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
#pg-mob-nav a {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--pg-text-2);
  padding: 10px 12px;
  border-radius: var(--pg-r);
  transition: color var(--pg-t-fast), background var(--pg-t-fast);
}
#pg-mob-nav a:hover {
  color: var(--pg-text);
  background: var(--pg-gray-100);
}
.pg-mob-divider {
  height: 1px;
  background: var(--pg-border);
  margin-block: 8px;
}
.pg-mob-cta {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.pg-mob-cta .btn { flex: 1; justify-content: center; }

/* ── Footer ─────────────────────────────────────────────────── */
#pg-footer {
  background: var(--pg-bg-dark);
  color: rgba(255,255,255,.55);
  padding-block: clamp(56px, 7vw, 96px) clamp(32px, 4vw, 48px);
}

.pg-footer-grid {
  display: grid;
  grid-template-columns: 240px repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3rem);
}
@media (max-width: 1023px) {
  .pg-footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .pg-footer-grid { grid-template-columns: 1fr; }
}

.pg-footer-brand .pg-nav-logo {
  color: #fff;
  font-size: 1.25rem;
  display: inline-block;
  margin-bottom: 12px;
}
.pg-footer-brand p {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(255,255,255,.4);
}

.pg-footer-col h5 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  margin-bottom: 12px;
}
.pg-footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.pg-footer-col a {
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
  transition: color var(--pg-t-fast);
}
.pg-footer-col a:hover { color: rgba(255,255,255,.9); }

.pg-footer-bottom {
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.pg-footer-bottom p { font-size: 0.8125rem; color: rgba(255,255,255,.28); }
.pg-footer-bottom a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.32);
  transition: color var(--pg-t-fast);
}
.pg-footer-bottom a:hover { color: rgba(255,255,255,.7); }
.pg-footer-bottom-links { display: flex; gap: 20px; }

/* ── Cards ─────────────────────────────────────────────────── */
.pg-card {
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-lg);
  padding: clamp(20px, 3vw, 28px);
  transition: box-shadow var(--pg-t), transform var(--pg-t);
}
.pg-card:hover {
  box-shadow: var(--pg-sh-md);
  transform: translateY(-2px);
}

.pg-feat-card {
  background: var(--pg-bg-soft);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-lg);
  padding: clamp(24px, 3vw, 32px);
}
.pg-feat-card .feat-icon {
  width: 44px; height: 44px;
  background: var(--pg-blue-soft);
  border-radius: var(--pg-r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}
.pg-feat-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.pg-feat-card p  { font-size: 0.875rem; color: var(--pg-text-2); line-height: 1.65; }

/* ── Badge ─────────────────────────────────────────────────── */
.pg-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--pg-r-full);
}
.pg-badge-blue   { background: var(--pg-blue-soft);       color: var(--pg-blue); }
.pg-badge-green  { background: rgba(22,163,74,.1);         color: var(--pg-green); }
.pg-badge-gray   { background: var(--pg-gray-100);         color: var(--pg-text-2); }
.pg-badge-yellow { background: rgba(245,158,11,.1);        color: #D97706; }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.pg-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  color: var(--pg-text-3);
  margin-bottom: 32px;
}
.pg-breadcrumb a { color: var(--pg-text-3); transition: color var(--pg-t-fast); }
.pg-breadcrumb a:hover { color: var(--pg-blue); }
.pg-breadcrumb-sep { color: var(--pg-gray-300); }
.pg-breadcrumb span { color: var(--pg-text-2); font-weight: 500; }

/* ── Hero wrapper (page hero, not LP) ───────────────────────── */
.pg-page-hero {
  padding-top: calc(var(--pg-nav-h) + clamp(48px, 7vw, 96px));
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ── Body offset for fixed nav ──────────────────────────────── */
body { padding-top: var(--pg-nav-h); }

/* ── Responsive Nav ─────────────────────────────────────────── */
@media (max-width: 1023px) {
  .pg-nav-links { display: none; }
  #pg-burger    { display: flex; }
}

/* ============================================================
   Phase 2 Components
   ============================================================ */

/* ── Feature Hub Card ───────────────────────────────────────── */
.pg-feat-hub-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.5vw, 28px);
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-lg);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--pg-t), border-color var(--pg-t), transform var(--pg-t);
}
.pg-feat-hub-card:hover {
  box-shadow: var(--pg-sh-md);
  border-color: var(--pg-gray-300);
  transform: translateY(-2px);
}
.pg-feat-hub-card .fhc-icon {
  width: 40px; height: 40px;
  border-radius: var(--pg-r);
  background: var(--pg-blue-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
}
.pg-feat-hub-card .fhc-status {
  display: inline-flex; align-items: center;
  font-size: .6875rem; font-weight: 600;
  color: var(--pg-blue);
  letter-spacing: .04em;
}
.pg-feat-hub-card h4 { font-size: .9375rem; font-weight: 700; }
.pg-feat-hub-card p  { font-size: .8125rem; color: var(--pg-text-2); line-height: 1.65; flex: 1; }
.pg-feat-hub-card .fhc-link {
  font-size: .8125rem; font-weight: 600;
  color: var(--pg-blue);
  display: flex; align-items: center; gap: 4px;
  margin-top: auto;
}
.pg-feat-hub-card.coming {
  background: var(--pg-bg-soft);
  pointer-events: none;
}
.pg-feat-hub-card.coming .fhc-icon { background: var(--pg-gray-100); }
.pg-feat-hub-card.coming h4 { color: var(--pg-text-2); }

/* ── Pricing Card ───────────────────────────────────────────── */
.pg-pricing-card {
  border: 1.5px solid var(--pg-border);
  border-radius: var(--pg-r-xl);
  padding: clamp(28px, 3.5vw, 40px);
  display: flex; flex-direction: column; gap: 24px;
  background: var(--pg-bg);
  transition: box-shadow var(--pg-t);
}
.pg-pricing-card.featured {
  border-color: var(--pg-blue);
  box-shadow: 0 0 0 4px var(--pg-blue-soft);
}
.pg-pricing-card .pc-label {
  font-size: .75rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--pg-text-3);
}
.pg-pricing-card.featured .pc-label { color: var(--pg-blue); }
.pg-pricing-card .pc-name {
  font-size: 1.25rem; font-weight: 700; margin-top: 4px;
}
.pg-pricing-card .pc-price {
  display: flex; align-items: baseline; gap: 4px;
  margin-top: 8px;
}
.pg-pricing-card .pc-price-num {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800; letter-spacing: -0.03em;
}
.pg-pricing-card .pc-price-unit { font-size: .875rem; color: var(--pg-text-2); }
.pg-pricing-card .pc-desc {
  font-size: .875rem; color: var(--pg-text-2); line-height: 1.65;
}
.pg-pricing-card .pc-features {
  display: flex; flex-direction: column; gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--pg-border);
}
.pg-pricing-card .pc-feature {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .875rem; line-height: 1.55;
}
.pg-pricing-card .pc-feature::before {
  content: '✓';
  color: var(--pg-green);
  font-weight: 700;
  flex-shrink: 0;
}
.pg-pricing-card .pc-cta { margin-top: auto; }

/* ── Case Study Card ─────────────────────────────────────────── */
.pg-case-card {
  display: flex; flex-direction: column; gap: 16px;
  padding: clamp(24px, 3vw, 32px);
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-lg);
  text-decoration: none; color: inherit;
  transition: box-shadow var(--pg-t), transform var(--pg-t);
}
.pg-case-card:hover {
  box-shadow: var(--pg-sh-md);
  transform: translateY(-2px);
}
.pg-case-card .cc-logo {
  width: 44px; height: 44px;
  border-radius: var(--pg-r);
  display: flex; align-items: center; justify-content: center;
  font-size: .8125rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.pg-case-card .cc-header {
  display: flex; align-items: center; gap: 12px;
}
.pg-case-card .cc-meta { font-size: .8125rem; color: var(--pg-text-3); }
.pg-case-card .cc-name { font-size: 1rem; font-weight: 700; }
.pg-case-card .cc-desc {
  font-size: .875rem; color: var(--pg-text-2);
  line-height: 1.65;
}
.pg-case-card .cc-metrics {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding-top: 12px; border-top: 1px solid var(--pg-border);
}
.pg-case-card .cc-metric {
  display: flex; flex-direction: column; gap: 2px;
  padding: 8px 12px;
  background: var(--pg-bg-soft);
  border-radius: var(--pg-r);
}
.pg-case-card .cc-metric-val {
  font-size: 1rem; font-weight: 700; color: var(--pg-text);
}
.pg-case-card .cc-metric-lbl {
  font-size: .6875rem; color: var(--pg-text-3);
}
.pg-case-card .cc-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.pg-case-card .cc-tag {
  font-size: .6875rem; font-weight: 600;
  padding: 3px 8px;
  background: var(--pg-gray-100);
  color: var(--pg-text-2);
  border-radius: var(--pg-r-full);
}
.pg-case-card .cc-link {
  font-size: .8125rem; font-weight: 600;
  color: var(--pg-blue);
  display: flex; align-items: center; gap: 4px;
  margin-top: auto;
}

/* ── Related Content Strip ──────────────────────────────────── */
.pg-related {
  background: var(--pg-bg-soft);
  border-radius: var(--pg-r-xl);
  padding: clamp(28px, 4vw, 48px);
}
.pg-related h3 {
  font-size: 1rem; font-weight: 700;
  color: var(--pg-text-2);
  margin-bottom: 20px;
  letter-spacing: .04em;
}
.pg-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 767px) { .pg-related-grid { grid-template-columns: 1fr; } }
@media (min-width: 540px) and (max-width: 1023px) {
  .pg-related-grid { grid-template-columns: repeat(2, 1fr); }
}
.pg-related-link {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-md);
  font-size: .875rem; font-weight: 600;
  color: var(--pg-text);
  text-decoration: none;
  transition: box-shadow var(--pg-t-fast), border-color var(--pg-t-fast);
}
.pg-related-link:hover {
  box-shadow: var(--pg-sh-sm);
  border-color: var(--pg-gray-300);
}
.pg-related-link .rl-icon {
  width: 32px; height: 32px;
  background: var(--pg-blue-soft);
  border-radius: var(--pg-r);
  display: flex; align-items: center; justify-content: center;
  font-size: .875rem;
  flex-shrink: 0;
}
.pg-related-link .rl-name { flex: 1; }
.pg-related-link .rl-arrow { color: var(--pg-text-3); font-size: .75rem; }

/* ── Stat Block ─────────────────────────────────────────────── */
.pg-stat-block {
  text-align: center;
  padding: clamp(20px, 2.5vw, 28px);
}
.pg-stat-block .sb-num {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--pg-text);
  line-height: 1;
  margin-bottom: 8px;
  display: block;
}
.pg-stat-block .sb-num.blue { color: var(--pg-blue); }
.pg-stat-block .sb-num.green { color: var(--pg-green); }
.pg-stat-block .sb-label {
  font-size: .875rem; color: var(--pg-text-2);
  font-weight: 500;
  display: block;
}

/* ── How-it-works Step ──────────────────────────────────────── */
.pg-how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 32px);
  position: relative;
}
@media (max-width: 767px) { .pg-how-grid { grid-template-columns: 1fr; } }
.pg-how-step {
  display: flex; flex-direction: column; gap: 12px;
  position: relative;
}
.pg-how-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 2px solid var(--pg-border);
  display: flex; align-items: center; justify-content: center;
  font-size: .875rem; font-weight: 700; color: var(--pg-blue);
  background: var(--pg-bg);
  flex-shrink: 0;
  position: relative; z-index: 1;
}
.pg-how-step h4 { font-size: 1rem; font-weight: 700; }
.pg-how-step p  { font-size: .875rem; color: var(--pg-text-2); line-height: 1.7; }

/* ── Pillar (platform overview) ─────────────────────────────── */
.pg-pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--pg-border);
  border: 1px solid var(--pg-border);
  border-radius: var(--pg-r-xl);
  overflow: hidden;
}
@media (max-width: 767px) { .pg-pillar-grid { grid-template-columns: 1fr; } }
.pg-pillar {
  padding: clamp(28px, 4vw, 48px);
  background: var(--pg-bg);
  display: flex; flex-direction: column; gap: 16px;
}
.pg-pillar-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 4px;
}
.pg-pillar h3 { font-size: 1.0625rem; }
.pg-pillar p  { font-size: .875rem; color: var(--pg-text-2); line-height: 1.7; }

/* ── Cat Section Header ─────────────────────────────────────── */
.pg-cat-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px;
}
.pg-cat-header h3 {
  font-size: 1rem; font-weight: 700;
  color: var(--pg-text);
}
.pg-cat-line {
  flex: 1;
  height: 1px;
  background: var(--pg-border);
}
.pg-cat-count {
  font-size: .75rem; font-weight: 600;
  color: var(--pg-text-3);
}