/* ===================================================================
   Buttons
=================================================================== */
.btn {
  --btn-h: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: var(--btn-h);
  min-width: 44px;
  padding: 0 1.5rem;
  font-family: inherit;
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    background var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out);
  text-align: center;
  white-space: nowrap;
}

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

.btn .icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Primary — solid gradient */
.btn--primary {
  background: var(--gradient-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-brand);
  position: relative;
  isolation: isolate;
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--brand-blue-medium) 0%, var(--brand-blue-deep) 100%);
  opacity: 0;
  z-index: -1;
  transition: opacity var(--duration-base) var(--ease-out);
}

.btn--primary:hover {
  box-shadow: var(--shadow-brand-strong);
}

.btn--primary:hover::after {
  opacity: 1;
}

/* Secondary — outlined */
.btn--secondary {
  background: var(--color-white);
  color: var(--color-text-strong);
  border-color: var(--color-border);
  box-shadow: var(--shadow-xs);
}

.btn--secondary:hover {
  border-color: var(--brand-blue-medium);
  color: var(--brand-blue-medium);
  box-shadow: var(--shadow-sm);
}

/* Ghost — minimal */
.btn--ghost {
  background: transparent;
  color: var(--color-text-strong);
}

.btn--ghost:hover {
  color: var(--brand-blue-medium);
  background: var(--color-bg-tint);
}

/* On dark backgrounds */
.btn--on-dark {
  background: var(--color-white);
  color: var(--brand-blue-dark);
}

.btn--on-dark:hover {
  background: var(--color-bg-tint);
  color: var(--brand-blue-deep);
}

.btn--outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.32);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

/* Sizes */
.btn--sm {
  --btn-h: 40px;
  padding: 0 1.125rem;
  font-size: var(--fs-small);
}

.btn--lg {
  --btn-h: 56px;
  padding: 0 2rem;
  font-size: var(--fs-body);
}

/* Store buttons (App Store / Google Play) */
.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-black);
  color: var(--color-white);
  border: 1px solid var(--color-black);
  min-height: 52px;
  min-width: 168px;
  transition: transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.btn-store:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-store .store-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.btn-store__label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.05;
  text-align: left;
}

.btn-store__label .small {
  font-size: 0.6875rem;
  font-weight: var(--fw-regular);
  opacity: 0.78;
}

.btn-store__label .big {
  font-size: 0.95rem;
  font-weight: var(--fw-semibold);
}

/* ===================================================================
   Cards
=================================================================== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  transition:
    transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 100, 230, 0.18);
}

/* ===================================================================
   Badge
=================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  background: var(--color-bg-tint);
  color: var(--brand-blue-dark);
  border: 1px solid rgba(0, 100, 230, 0.16);
}

.badge--brand {
  background: var(--gradient-brand);
  color: var(--color-white);
  border-color: transparent;
}

.badge--success {
  background: rgba(22, 163, 74, 0.10);
  color: var(--color-success);
  border-color: rgba(22, 163, 74, 0.22);
}

.badge--dot {
  position: relative;
  padding-left: 1.5rem;
}

.badge--dot::before {
  content: '';
  position: absolute;
  left: 0.625rem;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  transform: translateY(-50%);
}

/* ===================================================================
   Decorative pill icon (used in feature lists)
=================================================================== */
.icon-pill {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand-soft);
  color: var(--brand-blue-medium);
  flex-shrink: 0;
}

.icon-pill svg {
  width: 22px;
  height: 22px;
}

.icon-pill--solid {
  background: var(--gradient-brand);
  color: var(--color-white);
}

/* ===================================================================
   Floating WhatsApp button — solo icono
=================================================================== */
.fab-whatsapp {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: #25D366;
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: 0 16px 40px rgba(37, 211, 102, 0.36), 0 4px 12px rgba(15, 23, 42, 0.10);
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.fab-whatsapp:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 24px 50px rgba(37, 211, 102, 0.48), 0 8px 16px rgba(15, 23, 42, 0.12);
}

.fab-whatsapp:focus-visible {
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.32), 0 16px 40px rgba(37, 211, 102, 0.36);
}

.fab-whatsapp svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .fab-whatsapp {
    bottom: 1rem;
    right: 1rem;
    width: 52px;
    height: 52px;
  }
}

/* ===================================================================
   Reveal animation utility
=================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-delay="100"] { transition-delay: 100ms; }
.reveal[data-delay="200"] { transition-delay: 200ms; }
.reveal[data-delay="300"] { transition-delay: 300ms; }
.reveal[data-delay="400"] { transition-delay: 400ms; }
.reveal[data-delay="500"] { transition-delay: 500ms; }

/* ===================================================================
   UNIFIED INTERACTION PRIMITIVES
   Reused across every interactive surface so cards, tabs, chips and
   selectable items share identical hover / select effects.
=================================================================== */

/* Universal interactive surface — wraps card-like blocks */
.surface {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition:
    transform var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    background var(--duration-base) var(--ease-out);
}

.surface:hover {
  transform: translateY(var(--hover-lift));
  box-shadow: var(--hover-shadow);
  border-color: var(--hover-border);
}

/* Glass surface — for use on top of imagery / brand backgrounds */
.surface--glass {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--on-dark-text);
  box-shadow: var(--glass-shadow);
}

.surface--glass:hover {
  background: var(--glass-bg-strong);
  border-color: rgba(255, 255, 255, 0.42);
  box-shadow: 0 24px 56px rgba(0, 24, 60, 0.34);
}

/* Selectable item — same shape used for tabs, chips, toggle buttons */
.selectable {
  position: relative;
  transition:
    color var(--duration-fast) var(--ease-out),
    background var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.selectable:hover {
  color: var(--brand-blue-medium);
}

.selectable[aria-selected="true"],
.selectable[aria-pressed="true"],
.selectable.is-active {
  background: var(--color-white);
  color: var(--brand-blue-medium);
  box-shadow: var(--shadow-sm);
}

/* Cover effect — animated overlay used on cards and CTAs */
.has-cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.has-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--gradient-brand-soft);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  z-index: 0;
  pointer-events: none;
}

.has-cover > * {
  position: relative;
  z-index: 1;
}

.has-cover:hover::before {
  opacity: 1;
}

/* Universal chevron / arrow shift on hover */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: var(--fw-semibold);
  color: var(--brand-blue-medium);
  transition: gap var(--duration-base) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.arrow-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-base) var(--ease-out);
}

.arrow-link:hover {
  gap: 0.7rem;
}

.arrow-link:hover svg {
  transform: translateX(3px);
}

/* Logos bar — used for trust + community */
.logos-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2.5rem 3rem;
  padding: 1.25rem 0;
  opacity: 0.75;
}

.logos-bar__item {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
  color: var(--color-text-soft);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: opacity var(--duration-base) var(--ease-out), filter var(--duration-base) var(--ease-out);
}

.logos-bar__item:hover {
  opacity: 1;
  filter: grayscale(0%);
}

.logos-bar__item svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}