/* ==========================================================================
   BASE / RESET / TYPOGRAPHY / LAYOUT PRIMITIVES
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text-primary);
  background: var(--color-surface);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: var(--lh-heading);
  margin: 0;
  color: var(--color-text-primary);
  font-weight: var(--fw-semibold);
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
}

.eyebrow--on-dark { color: var(--color-brand-accent); }

.text-display {
  font-size: var(--fs-display);
  font-weight: var(--fw-semibold);
}
.text-h1 { font-size: var(--fs-h1); }
.text-h2 { font-size: var(--fs-h2); font-weight: var(--fw-semibold); }
.text-h3 {
  font-size: var(--fs-h3);
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
}
.text-body { font-size: var(--fs-body); }
.text-small { font-size: var(--fs-small); font-weight: var(--fw-medium); }

.text-muted { color: var(--color-text-muted); }
.text-on-dark { color: var(--color-text-on-dark); }
.text-on-dark-muted { color: var(--color-text-on-dark-muted); }

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-4);
  background: var(--color-brand-deep);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--duration-base) var(--ease-standard);
}
.skip-link:focus { top: var(--space-4); }

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- Layout primitives ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-mobile);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--container-pad-tablet); }
}
@media (min-width: 1024px) {
  .container { padding-inline: var(--container-pad-desktop); }
}
@media (min-width: 1536px) {
  .container { padding-inline: var(--container-pad-wide); }
}

.section {
  padding-block: var(--section-space-mobile);
  position: relative;
}
.section--lg { padding-block: var(--section-space-mobile-lg); }
@media (min-width: 1024px) {
  .section { padding-block: var(--section-space-desktop); }
  .section--lg { padding-block: var(--section-space-desktop-lg); }
}

.section--white { background: var(--color-surface); }
.section--ivory { background: var(--color-surface-alt); }
.section--deep {
  background: linear-gradient(160deg, var(--color-brand-deep) 0%, #023B4F 100%);
}
.section--charcoal { background: var(--color-surface-charcoal); }

.grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}
.grid--2-mobile {
  grid-template-columns: repeat(2, 1fr);
}

.section-heading {
  max-width: 640px;
  margin-bottom: var(--space-10);
}
.section-heading .eyebrow { display: block; margin-bottom: var(--space-3); }
.section-heading h2 { margin-top: var(--space-2); }
.section-heading p { margin-top: var(--space-4); color: var(--color-text-muted); font-size: var(--fs-body); }
.section-heading--center { margin-inline: auto; text-align: center; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-button);
  font-weight: var(--fw-semibold);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: background var(--duration-base) var(--ease-standard),
              color var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
  white-space: nowrap;
  min-height: 48px;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-brand-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-brand-primary);
}
.btn--primary:hover { background: var(--color-brand-primary-hover); border-color: var(--color-brand-primary-hover); }

.btn--secondary {
  background: transparent;
  color: var(--color-brand-deep);
  border-color: var(--color-brand-deep);
}
.btn--secondary:hover { background: var(--color-brand-deep); color: var(--color-text-inverse); }

.btn--on-dark {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255,255,255,0.55);
}
.btn--on-dark:hover { background: rgba(255,255,255,0.12); border-color: #fff; }

.btn--whatsapp {
  background: #1FA855;
  color: #fff;
  border-color: #1FA855;
}
.btn--whatsapp:hover { background: #178C46; border-color: #178C46; }

.btn--text {
  padding: 4px 0;
  min-height: 0;
  background: none;
  border: none;
  color: var(--color-brand-deep);
  gap: var(--space-1);
}
.btn--text .arrow { transition: transform var(--duration-base) var(--ease-standard); }
.btn--text:hover .arrow { transform: translateX(3px); }

.btn--block { width: 100%; }

.btn--sm { padding: 10px 18px; min-height: 40px; font-size: var(--fs-small); }

/* ---- Small spacing utilities (used sparingly, for one-off top margins) ---- */
.u-mt-3 { margin-top: var(--space-3); }
.u-mt-6 { margin-top: var(--space-6); }
.u-fw-regular { font-weight: var(--fw-regular); }

/* ---- Badge ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(0, 155, 184, 0.10);
  color: var(--color-brand-deep);
}

/* ---- Placeholder notice ---- */
.placeholder-notice {
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  background: var(--color-surface-alt);
}

/* ---- Icon sizing ---- */
.icon {
  display: inline-block;
  flex-shrink: 0;
}

/* Reveal-on-scroll utility.
   IMPORTANT: content is visible by default with no JS dependency. The
   hidden/animated state is only ever armed by main.js itself (via the
   js-reveal-active class), and that same script is responsible for
   removing the hidden state — so if main.js never runs, never finishes
   loading, or throws, content simply stays visible. See main.js
   initScrollReveal() for the full safety net (try/catch + timeout). */
.reveal {
  opacity: 1;
  transform: none;
}
html.js-reveal-active .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--ease-standard), transform 600ms var(--ease-standard);
}
html.js-reveal-active .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  html.js-reveal-active .reveal { opacity: 1; transform: none; transition: none; }
}