/* ==========================================================================
   BibleShield — Shared components: header/nav, footer, buttons, cards,
   badges, accordion, theme toggle.
   ========================================================================== */

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--divider);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text);
  font-weight: 650;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand:hover {
  color: var(--text);
}

.brand__logo {
  width: 34px;
  height: 34px;
  flex: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__link {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav__link:hover {
  color: var(--text);
  background: var(--primary-soft);
}

.nav__link[aria-current="page"] {
  color: var(--primary);
  background: var(--primary-soft);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--divider);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
}

/* Theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--divider);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.theme-toggle:hover {
  color: var(--primary);
  border-color: var(--ring);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* Mobile nav */
@media (max-width: 880px) {
  .nav__toggle { display: inline-flex; }

  .nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    padding: var(--space-4) var(--space-5) var(--space-5);
    background: var(--bg);
    border-bottom: 1px solid var(--divider);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease),
      visibility var(--dur) var(--ease);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    padding: var(--space-3) var(--space-4);
    font-size: 16px;
  }

  .nav__cta {
    margin-top: var(--space-3);
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--primary);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: var(--primary-strong);
  color: var(--text-on-primary);
  box-shadow: var(--shadow-lg);
}

.btn--accent {
  background: var(--accent);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-md);
}

.btn--accent:hover {
  filter: brightness(1.05);
  color: var(--text-on-accent);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border-color: var(--divider);
}

.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn--lg {
  padding: 15px 28px;
  font-size: 16px;
}

.btn--sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

/* Button shine sweep */
.btn--primary,
.btn--accent {
  position: relative;
  overflow: hidden;
}

.btn--primary::after,
.btn--accent::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 50%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s var(--ease);
}

.btn--primary:hover::after,
.btn--accent:hover::after {
  left: 130%;
}

/* Play Store badge */
.play-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  background: var(--text);
  color: var(--bg);
  transition: transform var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease);
}

.play-badge:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  color: var(--bg);
}

.play-badge__icon {
  width: 26px;
  height: 26px;
  flex: none;
}

.play-badge__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.play-badge__small {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.75;
}

.play-badge__large {
  font-size: 17px;
  font-weight: 650;
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.card--hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--ring);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: var(--space-4);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.card__body {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ---------- Feature rows ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-xl);
  padding: var(--space-7);
  box-shadow: var(--shadow-sm);
}

.feature-row + .feature-row {
  margin-top: var(--space-6);
}

.feature-row__media {
  position: relative;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-raised);
  border: 1px solid var(--divider);
  box-shadow: var(--shadow-md);
  aspect-ratio: 9 / 16;
  max-width: 360px;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Staggered reveal: card fades up, its media slides in a beat later */
.feature-row.reveal .feature-row__media {
  opacity: 0;
  transform: translateX(48px);
  transition: opacity var(--dur-slow) var(--ease) 140ms,
    transform var(--dur-slow) var(--ease) 140ms;
}

.feature-row:nth-child(even).reveal .feature-row__media {
  transform: translateX(-48px);
}

.feature-row.is-visible .feature-row__media {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .feature-row.reveal .feature-row__media {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (min-width: 881px) {
  .feature-row:nth-child(even) .feature-row__body { order: 2; }
  .feature-row:nth-child(even) .feature-row__media { order: 1; }
}

.feature-row__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-row__media--placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.feature-row__media--placeholder .file {
  display: inline-block;
  padding: 4px 10px;
  border: 1px dashed var(--divider);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  letter-spacing: 0;
}

.feature-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.feature-list__item {
  display: flex;
  gap: var(--space-3);
}

.feature-list__check {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.feature-list__check svg {
  width: 14px;
  height: 14px;
}

.feature-list__text {
  font-size: 15px;
  color: var(--text-secondary);
}

.feature-list__text strong {
  color: var(--text);
}

/* ---------- Badges / chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary);
}

/* ---------- FAQ accordion ---------- */
.faq {
  display: grid;
  gap: var(--space-3);
}

.faq__item {
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.faq__item[open] {
  border-color: var(--ring);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.faq__question:hover {
  color: var(--primary);
}

.faq__icon {
  flex: none;
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--dur) var(--ease);
}

.faq__item[open] .faq__icon {
  transform: rotate(45deg);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.65;
}

.faq__answer p + p {
  margin-top: var(--space-3);
}

/* ---------- Testimonials ---------- */
.testimonial {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  height: 100%;
}

.testimonial__quote {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--text-secondary);
  flex: 1;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 650;
  font-size: 15px;
}

.testimonial__name {
  font-weight: 600;
  font-size: 15px;
}

.testimonial__role {
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(3, 1fr);
}

.step {
  position: relative;
  overflow: hidden;
}

.step__index {
  display: block;
  font-family: var(--font-display);
  font-size: 3.25rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--brand-gold);
}

.step__label {
  display: block;
  margin-top: var(--space-4);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.step__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: var(--space-2);
  margin-bottom: var(--space-2);
}

.step__body {
  font-size: 15px;
  color: var(--text-secondary);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--divider);
  background: var(--bg-elevated);
  padding-block: var(--space-8) var(--space-6);
  margin-top: var(--space-9);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--divider);
}

.site-footer__brand {
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.6;
}

.site-footer__brand .brand {
  margin-bottom: var(--space-3);
}

.site-footer__heading {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: grid;
  gap: var(--space-2);
}

.site-footer__links a {
  color: var(--text-secondary);
  font-size: 14.5px;
}

.site-footer__links a:hover {
  color: var(--primary);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  font-size: 13.5px;
  color: var(--text-muted);
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  padding-block: var(--space-8) var(--space-7);
  background:
    radial-gradient(60% 80% at 80% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--divider);
}

.page-hero .display {
  font-size: clamp(2rem, 4.5vw, 3rem);
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .section { padding-block: var(--space-8); }
  .feature-row { grid-template-columns: 1fr; gap: var(--space-6); }
  .steps { grid-template-columns: 1fr; gap: var(--space-6); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}

@media (max-width: 560px) {
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}