/**
 * Theme T&B — layout and grid system.
 *
 * @package Theme_TB
 * @since 1.0.0
 */

.tb-container {
  width: min(100% - (var(--tb-gutter) * 2), var(--tb-container-max));
  margin-inline: auto;
}

.tb-container--wide {
  width: min(100% - (var(--tb-gutter) * 2), var(--tb-container-wide));
}

.tb-grid {
  display: grid;
  grid-template-columns: repeat(var(--tb-grid-columns), 1fr);
  gap: var(--tb-space-lg);
}

.tb-grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.tb-flex {
  display: flex;
  gap: var(--tb-space-md);
}

.tb-flex--between {
  justify-content: space-between;
  align-items: center;
}

.tb-flex--center {
  align-items: center;
  justify-content: center;
}

.tb-stack {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-md);
}

.tb-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(var(--tb-glass-blur));
  background: var(--tb-glass-bg);
  border-bottom: 1px solid var(--tb-color-border);
}

.tb-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tb-space-md);
  min-height: var(--tb-header-height);
  padding-block: var(--tb-space-sm);
}

.tb-site-nav {
  display: none;
  align-items: center;
  gap: var(--tb-space-lg);
}

.tb-site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tb-space-sm) var(--tb-space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.tb-site-nav__link {
  color: var(--tb-color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--tb-text-base);
  transition: color var(--tb-transition), background var(--tb-transition), box-shadow var(--tb-transition), transform var(--tb-transition);
}

.tb-nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.7rem 1.45rem;
  border-radius: var(--tb-radius-pill);
  border: 1px solid var(--tb-color-border);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.95));
  box-shadow: var(--tb-shadow-low);
  white-space: nowrap;
}

.tb-nav-pill:hover,
.tb-nav-pill:focus {
  color: var(--tb-color-primary);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.18);
  transform: translateY(-1px);
}

.tb-nav-pill.is-active {
  color: var(--tb-color-text-inverse);
  border-color: transparent;
  background: linear-gradient(135deg, var(--tb-color-primary), var(--tb-color-accent));
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
}

.tb-site-nav__list > li {
  position: relative;
}

.tb-site-nav__submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  margin: 0;
  padding: var(--tb-space-sm) 0;
  list-style: none;
  background: var(--tb-color-card);
  border: 1px solid var(--tb-color-border);
  border-radius: var(--tb-radius-md);
  box-shadow: var(--tb-shadow-md);
  z-index: 100;
}

.tb-site-nav__list > li:hover > .tb-site-nav__submenu,
.tb-site-nav__list > li:focus-within > .tb-site-nav__submenu {
  display: block;
}

.tb-site-nav__submenu .tb-site-nav__link {
  display: block;
  width: 100%;
  justify-content: flex-start;
  border-radius: var(--tb-radius-md);
  margin: 0.15rem var(--tb-space-sm);
  padding: var(--tb-space-sm) var(--tb-space-md);
}

.tb-site-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-xs);
}

.tb-site-footer__copyright {
  margin: 0;
  font-size: var(--tb-text-sm);
  color: var(--tb-color-text);
}

.tb-site-footer__attribution {
  margin: 0;
  font-size: var(--tb-text-xs);
  color: var(--tb-color-text-muted);
}

.tb-site-footer__attribution a {
  color: var(--tb-color-text-muted);
  text-decoration: none;
}

.tb-site-footer__attribution a:hover {
  color: var(--tb-color-primary);
  text-decoration: underline;
}

.tb-header-actions {
  display: flex;
  align-items: center;
  gap: var(--tb-space-sm);
}

.tb-mobile-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--tb-touch-min);
  height: var(--tb-touch-min);
  border: 1px solid var(--tb-color-border);
  border-radius: var(--tb-radius-md);
  background: var(--tb-color-bg);
  cursor: pointer;
}

.tb-mobile-nav {
  display: none;
  position: absolute;
  inset-inline: 0;
  top: 100%;
  background: var(--tb-color-card);
  border-bottom: 1px solid var(--tb-color-border);
  box-shadow: var(--tb-shadow-md);
  padding: var(--tb-space-md);
}

.tb-mobile-nav.is-open {
  display: block;
}

.tb-mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tb-space-sm);
}

.tb-mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  color: var(--tb-color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--tb-text-base);
  min-height: 3rem;
}

.tb-mobile-nav__link.tb-nav-pill {
  width: 100%;
}

/* Elementor canvas — no sidebar/widgets, content only */
body.tb-elementor-canvas #secondary,
body.tb-elementor-canvas .tb-sidebar,
.tb-page--elementor + #secondary {
  display: none !important;
}

.tb-page--elementor {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

body.tb-elementor-canvas .tb-page--elementor .tb-entry-header {
  display: none;
}

.tb-site-footer {
  background: var(--tb-color-surface);
  border-top: 1px solid var(--tb-color-border);
  margin-top: auto;
}

.tb-site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--tb-space-xl);
  padding-block: var(--tb-space-2xl);
}

.tb-site-footer__bottom {
  padding-block: var(--tb-space-lg);
  border-top: 1px solid var(--tb-color-border);
  text-align: center;
  color: var(--tb-color-text-muted);
  font-size: var(--tb-text-sm);
}

.tb-archive-hero {
  padding: var(--tb-space-2xl) 0 var(--tb-space-xl);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(6, 182, 212, 0.06));
  margin-bottom: var(--tb-space-xl);
  border-bottom: 1px solid var(--tb-color-border);
}

.tb-content-with-sidebar {
  display: grid;
  gap: var(--tb-space-xl);
}

.tb-announcement-bar {
  padding: var(--tb-space-sm) var(--tb-space-md);
  text-align: center;
  font-size: var(--tb-text-sm);
  background: var(--tb-color-primary);
  color: #fff;
}

.tb-announcement-bar a {
  color: inherit;
  text-decoration: underline;
}

.tb-header--sticky {
  position: sticky;
  top: 0;
  z-index: var(--tb-z-header, 100);
}

.tb-header--transparent {
  background: transparent;
}

.tb-header-cta {
  display: none;
}

.tb-footer-newsletter {
  padding: var(--tb-space-lg) 0;
  text-align: center;
}

.tb-footer-social__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tb-space-md);
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.tb-footer-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--tb-space-md);
  justify-content: center;
  list-style: none;
  margin: 0 0 var(--tb-space-md);
  padding: 0;
}

/* Layout shells */
.tb-layout-shell {
  width: 100%;
  padding-block: var(--tb-space-lg);
}

.tb-layout-narrow {
  max-width: 760px;
  margin-inline: auto;
}

.tb-layout-full-canvas {
  padding-inline: 0;
}

.tb-layout-full-canvas__inner {
  width: 100%;
  max-width: none;
  padding-inline: var(--tb-space-md);
}

.tb-layout-full-elementor {
  padding: 0;
}

.tb-layout-full-elementor__inner {
  width: 100%;
  max-width: none;
  padding: 0;
}

.tb-layout-shell--with-sidebar .tb-content-with-sidebar {
  display: grid;
  gap: var(--tb-space-xl);
}

/* SaaS archive hero */
.tb-saas-hero {
  display: grid;
  gap: var(--tb-space-lg);
  align-items: center;
  margin-bottom: var(--tb-space-2xl);
  padding: var(--tb-space-2xl);
  border-radius: var(--tb-radius-lg);
  border: 1px solid var(--tb-color-border);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.05));
  box-shadow: var(--tb-shadow-md);
}

.tb-saas-hero--ebooks {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(37, 99, 235, 0.06));
}

.tb-saas-hero--tools {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.07));
}

.tb-saas-hero__eyebrow {
  margin: 0 0 var(--tb-space-sm);
  font-size: var(--tb-text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tb-color-primary);
}

.tb-saas-hero__title {
  margin: 0 0 var(--tb-space-sm);
  font-family: var(--tb-font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
}

.tb-saas-hero__desc {
  margin: 0;
  max-width: 58ch;
  color: var(--tb-color-text-muted);
  line-height: var(--tb-leading-relaxed);
}

.tb-saas-hero__stats {
  display: flex;
  gap: var(--tb-space-md);
}

.tb-saas-hero__stat {
  min-width: 120px;
  padding: var(--tb-space-md) var(--tb-space-lg);
  border-radius: var(--tb-radius-md);
  background: var(--tb-color-bg);
  border: 1px solid var(--tb-color-border);
  text-align: center;
}

.tb-saas-hero__stat strong {
  display: block;
  font-size: 1.75rem;
  color: var(--tb-color-primary);
}

.tb-saas-hero__stat span {
  font-size: var(--tb-text-sm);
  color: var(--tb-color-text-muted);
}

/* SaaS cards */
.tb-saas-grid {
  gap: var(--tb-space-xl);
}

.tb-saas-card {
  position: relative;
  border: 1px solid transparent;
  background: linear-gradient(var(--tb-color-bg), var(--tb-color-bg)) padding-box,
    linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(139, 92, 246, 0.2)) border-box;
  box-shadow: var(--tb-shadow-sm);
}

.tb-saas-card.is-featured {
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.15);
}

.tb-saas-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.45));
  opacity: 0;
  transition: opacity var(--tb-transition);
}

.tb-saas-card:hover .tb-saas-card__overlay {
  opacity: 1;
}

.tb-saas-card__cta {
  width: 100%;
  margin-top: var(--tb-space-sm);
}

.tb-saas-card__icon {
  margin-right: 0.25rem;
}

@media (min-width: 768px) {
  .tb-saas-hero {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 992px) {
  .tb-site-nav { display: flex; }
  .tb-mobile-nav-toggle { display: none; }
  .tb-header-cta { display: inline-flex; }
  .tb-content-with-sidebar,
  .tb-layout-shell--with-sidebar .tb-content-with-sidebar {
    grid-template-columns: 1fr 300px;
  }
}