/* ============================================
   ProIA Landing Page — Base & Reset
   ============================================ */

/* ── Modern Reset ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--navbar-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-text);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

ul,
ol {
  list-style: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ── Skip Link (a11y) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--gold);
  color: var(--navy-deep);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--dark-text);
}

h1 {
  font-size: 56px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 24px;
  font-weight: 600;
}

p {
  color: var(--mid-gray);
  line-height: 1.7;
}

.text-gold {
  color: var(--gold);
}

.text-white {
  color: var(--white);
}

.text-pale {
  color: var(--pale-blue);
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ── Section Spacing ── */
.section {
  padding: var(--space-5xl) 0;
}

.section--sm {
  padding: var(--space-3xl) 0;
}

/* ── Section Headings ── */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: 18px;
}

/* ── Scroll Reveal Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── Focus Visible (a11y) ── */
:focus-visible {
  outline: 3px solid var(--bright-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

.btn:focus-visible {
  outline-offset: 4px;
}

.faq-item__question:focus-visible {
  outline-offset: -2px;
}

.screenshots__tab:focus-visible {
  outline-offset: -2px;
}