/* ==========================================================================
   COMPONENTS — Reusable UI Elements
   ==========================================================================
   Navigation, Buttons, Cards, Badges, Accordion, Store Badges, Blog cards.
   CRITICAL: Cards are borderless, using tonal contrast for distinction.
   ========================================================================== */

/* -----------------------------------------------------------------------
   NAVIGATION BAR (.nav)
   ----------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background-color: rgba(247, 249, 252, 0.72);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  z-index: var(--fa-z-nav);
  transition: background-color var(--fa-motion-normal) ease,
              box-shadow var(--fa-motion-normal) ease,
              border-color var(--fa-motion-normal) ease;
  border-bottom: 1px solid transparent;
}

[data-theme='dark'] .nav {
  background-color: rgba(6, 6, 11, 0.72);
}

.nav--scrolled {
  background-color: var(--fa-color-surface-1);
  box-shadow: var(--fa-shadow-nav);
  border-bottom-color: var(--fa-color-surface-3);
}

.nav__inner {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--fa-space-24);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--fa-space-12);
  font-family: var(--fa-font-display);
  font-size: var(--fa-size-h5);
  font-weight: 800;
  color: var(--fa-color-text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav__logo-svg {
  width: 32px;
  height: 32px;
  transition: transform var(--fa-motion-moderate) var(--fa-ease-spring);
}
.nav__logo:hover .nav__logo-svg { transform: rotate(-8deg) scale(1.08); }

.nav__links {
  display: none;
  list-style: none;
  gap: var(--fa-space-32);
}

.nav__links a {
  position: relative;
  font-family: var(--fa-font-body);
  font-size: var(--fa-size-body-md);
  font-weight: 500;
  color: var(--fa-color-text-secondary);
  transition: color var(--fa-motion-fast) var(--fa-ease-out);
  padding: 4px 0;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--fa-color-primary);
  border-radius: 2px;
  transition: width var(--fa-motion-moderate) var(--fa-ease-emphasized);
}

.nav__links a:hover,
.nav__links a.nav__link--active {
  color: var(--fa-color-primary);
}

.nav__links a:hover::after,
.nav__links a.nav__link--active::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--fa-space-16);
}

.nav__lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--fa-radius-full);
  background-color: var(--fa-color-surface-2);
  font-size: var(--fa-size-body-sm);
  font-weight: 700;
  color: var(--fa-color-text-secondary);
  border: 1px solid transparent;
  transition: background-color var(--fa-motion-fast) ease,
              color var(--fa-motion-fast) ease,
              border-color var(--fa-motion-fast) ease,
              transform var(--fa-motion-fast) var(--fa-ease-spring);
}
.nav__lang:hover {
  background-color: var(--fa-color-surface-3);
  color: var(--fa-color-text-primary);
  border-color: var(--fa-color-surface-3);
  transform: translateY(-1px);
}
.nav__lang:active { transform: scale(0.96); }

.nav__lang-flag { font-size: 14px; line-height: 1; }
.nav__lang-code { font-variant-numeric: tabular-nums; letter-spacing: 0.5px; }

.nav__mobile-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--fa-radius-sm);
  position: relative;
  z-index: var(--fa-z-max);
  gap: 5px;
  padding: 0;
}
.nav__mobile-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fa-color-text-primary);
  border-radius: 2px;
  transition: transform var(--fa-motion-moderate) var(--fa-ease-emphasized),
              opacity var(--fa-motion-fast) ease;
  transform-origin: center;
}
.nav__mobile-btn[aria-expanded='true'] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__mobile-btn[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.nav__mobile-btn[aria-expanded='true'] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(85%, 400px);
  height: 100vh;
  background-color: var(--fa-color-surface-1);
  box-shadow: var(--fa-shadow-xl);
  padding: 100px var(--fa-space-32) var(--fa-space-32);
  display: flex;
  flex-direction: column;
  gap: var(--fa-space-24);
  z-index: var(--fa-z-overlay);
  transform: translateX(100%);
  transition: transform var(--fa-motion-moderate) var(--fa-ease-emphasized);
  visibility: hidden;
}
.nav__mobile-menu--open {
  transform: translateX(0);
  visibility: visible;
}

.nav__mobile-menu a {
  font-family: var(--fa-font-display);
  font-size: var(--fa-size-h4);
  font-weight: 700;
  color: var(--fa-color-text-primary);
  padding: 8px 0;
  border-bottom: 1px solid var(--fa-color-surface-3);
}
.nav__mobile-menu a:last-child { border-bottom: none; }

@media (min-width: 768px) {
  .nav__links { display: flex; }
  .nav__mobile-btn { display: none; }
  .nav__mobile-menu { display: none; }
}

/* -----------------------------------------------------------------------
   BUTTONS (.btn)
   ----------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--fa-space-8);
  padding: var(--fa-space-16) var(--fa-space-32);
  border-radius: var(--fa-radius-full);
  font-family: var(--fa-font-body);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--fa-motion-normal) var(--fa-ease-spring),
              background-color var(--fa-motion-normal) ease,
              color var(--fa-motion-normal) ease,
              box-shadow var(--fa-motion-normal) ease,
              border-color var(--fa-motion-normal) ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline-offset: 4px; }

.btn--primary {
  background-color: var(--fa-color-primary);
  color: var(--fa-color-text-inverse);
  box-shadow: var(--fa-shadow-button);
}
.btn--primary:hover {
  background-color: var(--fa-color-primary-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(0, 74, 198, 0.32);
  color: var(--fa-color-text-inverse);
}
.btn--primary:active { transform: translateY(0) scale(0.97); }

.btn--outlined {
  border: 2px solid var(--fa-color-primary);
  background-color: transparent;
  color: var(--fa-color-primary);
}
.btn--outlined:hover {
  background-color: var(--fa-color-primary-light);
  transform: translateY(-2px) scale(1.02);
  color: var(--fa-color-primary-hover);
}

.btn--ghost {
  background-color: transparent;
  color: var(--fa-color-primary);
}
.btn--ghost:hover { background-color: var(--fa-color-primary-light); }

.btn--white-bg {
  background-color: var(--fa-color-text-inverse);
  color: var(--fa-color-brand-navy);
}
.btn--white-bg:hover {
  background-color: var(--fa-color-surface-2);
  transform: translateY(-2px) scale(1.02);
  color: var(--fa-color-brand-navy);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.20);
}

.btn--white-outlined {
  border: 2px solid rgba(255, 255, 255, 0.50);
  background-color: transparent;
  color: var(--fa-color-text-inverse);
}
.btn--white-outlined:hover {
  background-color: rgba(255, 255, 255, 0.10);
  border-color: var(--fa-color-text-inverse);
  transform: translateY(-2px) scale(1.02);
  color: var(--fa-color-text-inverse);
}

.btn--large { padding: 18px 36px; font-size: 17px; }
.btn--small { padding: 10px 20px; font-size: 13px; }

/* -----------------------------------------------------------------------
   CARDS (.card)
   No borders — tonal contrast only.
   ----------------------------------------------------------------------- */
.card {
  background-color: var(--fa-color-surface-1);
  border-radius: var(--fa-radius-xl);
  padding: var(--fa-space-32);
  box-shadow: var(--fa-shadow-card);
  transition: transform var(--fa-motion-moderate) var(--fa-ease-emphasized),
              box-shadow var(--fa-motion-moderate) ease;
  position: relative;
  overflow: hidden;
  will-change: transform;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--fa-shadow-card-hover);
}

.card--pricing {
  padding: var(--fa-space-40) var(--fa-space-32);
  display: flex;
  flex-direction: column;
  text-align: left;
}
.card--featured {
  transform: scale(1.04);
  box-shadow: var(--fa-shadow-lg);
  border: 1px solid var(--fa-color-primary-light);
}
[data-theme='dark'] .card--featured {
  border-color: rgba(0, 74, 198, 0.30);
}
.card--featured:hover {
  transform: translateY(-6px) scale(1.04);
  box-shadow: var(--fa-shadow-xl);
}
.card--featured::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--fa-color-primary);
}

/* -----------------------------------------------------------------------
   BADGES & TAGS
   ----------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  border-radius: var(--fa-radius-full);
  font-family: var(--fa-font-body);
  font-size: var(--fa-size-body-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--fa-ls-label);
}
.badge--primary { background-color: var(--fa-color-primary-light); color: var(--fa-color-primary); }
.badge--success { background-color: var(--fa-color-success-light); color: var(--fa-color-success); }

.tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: var(--fa-radius-sm);
  font-size: 11px;
  font-weight: 700;
  background-color: var(--fa-color-surface-2);
  color: var(--fa-color-text-secondary);
  letter-spacing: 0.3px;
}

/* -----------------------------------------------------------------------
   ACCORDION (.accordion) — WCAG-ACCESSIBLE
   ----------------------------------------------------------------------- */
.accordion { width: 100%; }
.accordion__item {
  border-bottom: 1px solid var(--fa-color-surface-3);
  padding: var(--fa-space-16) 0;
}
.accordion__item:first-child { border-top: 1px solid var(--fa-color-surface-3); }

.accordion__trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--fa-space-12) 0;
  gap: var(--fa-space-16);
  border-radius: var(--fa-radius-sm);
  transition: color var(--fa-motion-fast) ease;
}
.accordion__trigger:hover .accordion__title { color: var(--fa-color-primary); }

.accordion__title {
  font-family: var(--fa-font-display);
  font-size: var(--fa-size-h5);
  font-weight: 700;
  color: var(--fa-color-text-primary);
  transition: color var(--fa-motion-fast) ease;
}

.accordion__icon {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--fa-color-text-secondary);
  stroke-width: 2.5;
  flex-shrink: 0;
  transition: transform var(--fa-motion-moderate) var(--fa-ease-emphasized),
              stroke var(--fa-motion-fast) ease;
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--fa-motion-moderate) var(--fa-ease-emphasized);
}
.accordion__content-inner {
  padding: var(--fa-space-8) 0 var(--fa-space-20);
  font-size: var(--fa-size-body-lg);
  color: var(--fa-color-text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

/* Open state (controlled by JS) */
.accordion__item--open .accordion__content { max-height: 600px; }
.accordion__item--open .accordion__icon { transform: rotate(180deg); stroke: var(--fa-color-primary); }

/* -----------------------------------------------------------------------
   STORE BADGES / WAITLIST BUTTONS
   ----------------------------------------------------------------------- */
.store-badge {
  display: inline-block;
  height: 52px;
  transition: transform var(--fa-motion-normal) var(--fa-ease-spring),
              filter var(--fa-motion-normal) ease;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}
.store-badge:hover {
  transform: scale(1.05) translateY(-2px);
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.25));
}

@media (max-width: 767px) { .store-badge { height: 44px; } }

/* -----------------------------------------------------------------------
   BLOG CARDS (with premium tilt-on-hover)
   ----------------------------------------------------------------------- */
.blog-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 240px;
  background-size: cover;
  background-position: center;
  position: relative;
  z-index: 1;
  transform-style: preserve-3d;
  will-change: transform;
  overflow: hidden;
}
.blog-card::after {
  /* Subtle shine sweep on hover */
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 100%);
  transform: skewX(-20deg);
  transition: left var(--fa-motion-slow) var(--fa-ease-emphasized);
  pointer-events: none;
  z-index: 1;
}
.blog-card:hover::after { left: 125%; }

.blog-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 20, 55, 0.10) 0%, rgba(11, 20, 55, 0.95) 100%);
  z-index: -1;
  border-radius: var(--fa-radius-xl);
  transition: opacity var(--fa-motion-moderate) ease;
}
.blog-card:hover .blog-card__overlay { opacity: 0.85; }

.blog-card--large {
  grid-row: span 2;
  min-height: 504px;
}

.blog-card__top, .blog-card__bottom { position: relative; z-index: 2; }
.blog-card__top    { padding: var(--fa-space-24); }
.blog-card__bottom { padding: var(--fa-space-16) var(--fa-space-32) var(--fa-space-32); }

.blog-card__title {
  color: var(--fa-color-text-inverse);
  font-size: var(--fa-size-h4);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--fa-space-12);
}
.blog-card__title a { color: inherit; }
.blog-card--large .blog-card__title { font-size: var(--fa-size-h3); }

.blog-card__excerpt {
  color: rgba(255, 255, 255, 0.78);
  font-size: var(--fa-size-body-md);
  margin-bottom: var(--fa-space-20);
  display: none;
  max-width: 60ch;
}
.blog-card--large .blog-card__excerpt { display: block; }

.blog-card__meta {
  color: rgba(255, 255, 255, 0.55);
  font-size: var(--fa-size-body-sm);
  font-weight: 500;
}

/* -----------------------------------------------------------------------
   FORM — Waitlist
   ----------------------------------------------------------------------- */
.waitlist-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fa-space-8);
  max-width: 480px;
  margin: 0 auto;
  background: var(--fa-color-surface-1);
  border-radius: var(--fa-radius-full);
  padding: 6px;
  box-shadow: var(--fa-shadow-card);
}
.waitlist-form__input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 14px 20px;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--fa-color-text-primary);
  border-radius: var(--fa-radius-full);
  outline: none;
}
.waitlist-form__input::placeholder { color: var(--fa-color-text-tertiary); }
.waitlist-form__input:focus-visible { outline: 2px solid var(--fa-color-primary); outline-offset: -2px; }
.waitlist-form__submit {
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
}
.waitlist-form__status {
  flex: 0 0 100%;
  text-align: center;
  font-size: 13px;
  margin-top: 4px;
  min-height: 1.4em;
}
.waitlist-form__status--success { color: var(--fa-color-success); }
.waitlist-form__status--error   { color: var(--fa-color-error); }

/* -----------------------------------------------------------------------
   ACCESSIBILITY UTILITIES
   ----------------------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.waitlist-status {
  text-align: center;
  font-size: 14px;
  color: var(--fa-color-text-secondary);
  min-height: 1.4em;
  margin-top: 8px;
}