/* =========================================================================
   DigiFlux — Base: Reset, Typography, Body, Reveal animations
   ========================================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--df-gray-700);
  background-color: var(--df-white);
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

@media (min-width: 1024px) {
  body { font-size: var(--fs-body-lg); }
}

/* ---------- Headings ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--df-navy);
  margin: 0 0 0.75em;
}

h1 { font-size: clamp(2.125rem, 5.2vw, 3.5rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.625rem, 3.6vw, 2.375rem); font-weight: 800; }
h3 { font-size: clamp(1.25rem, 2.4vw, 1.5rem); font-weight: 700; }
h4 { font-size: 1.125rem; font-weight: 700; }

p { margin: 0 0 1rem; }

/* ---------- Links ---------- */
a {
  color: var(--df-blue-bright);
  text-decoration: none;
  transition: color var(--t-fast);
}
a:hover,
a:focus-visible { color: var(--df-blue-deep); }

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

ul, ol { margin: 0; padding: 0; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

/* ---------- Accessibility helpers ---------- */
:focus-visible {
  outline: 2px solid var(--df-blue-bright);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 0;
  top: -100px;
  z-index: var(--z-modal);
  padding: 0.75rem 1rem;
  background: var(--df-navy);
  color: var(--df-white);
  font-weight: 600;
  border-radius: 0 0 var(--radius-md) 0;
  transition: top var(--t-med);
}
.skip-link:focus-visible {
  top: 0;
  color: var(--df-white);
  outline-color: var(--df-amber);
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---------- Section helpers ---------- */
.section {
  padding-block: 3rem;
  position: relative;
}

@media (min-width: 1024px) {
  .section { padding-block: 5.5rem; }
}

.section-tagline {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--df-orange);
  margin-bottom: 0.75rem;
  position: relative;
  padding-left: 28px;
}

.section-tagline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--df-orange), transparent);
  transform: translateY(-50%);
}

.section-tagline-amber {
  color: var(--df-amber);
}
.section-tagline-amber::before {
  background: linear-gradient(90deg, var(--df-amber), transparent);
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

.section-head .section-tagline {
  padding-left: 0;
}
.section-head .section-tagline::before {
  display: none;
}

.section-head p {
  color: var(--df-gray-500);
  font-size: 1.0625rem;
  max-width: 720px;
  margin-inline: auto;
}

/* ---------- Gradient text utilities ---------- */
.gradient-text {
  background: linear-gradient(135deg, var(--df-amber) 0%, var(--df-orange) 50%, #FF6B5C 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
}

.text-gradient-warm {
  background: linear-gradient(135deg, var(--df-blue-deep) 0%, var(--df-orange) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.no-wrap { white-space: nowrap; }

/* ==========================================================================
   Scroll reveal — used by IntersectionObserver in main.js
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
  will-change: opacity, transform;
}

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

/* ==========================================================================
   Keyframes
   ========================================================================== */
@keyframes pulse-ring {
  0%   { transform: translate(-50%, -50%) scale(0.85); opacity: 0.55; }
  80%  { opacity: 0; }
  100% { transform: translate(-50%, -50%) scale(1.6);  opacity: 0; }
}

@keyframes float-up {
  0%, 100% { transform: translateY(0) scale(1);    opacity: 0.6; }
  50%      { transform: translateY(-14px) scale(1.2); opacity: 1; }
}

@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

@keyframes badge-pop {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50%      { transform: translate(-50%, -50%) scale(1.05); }
}

@keyframes shimmer-sweep {
  0%   { transform: translateX(-120%) skewX(-20deg); }
  100% { transform: translateX(220%)  skewX(-20deg); }
}

@keyframes blob-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(20px, -30px) scale(1.06); }
}

@keyframes icon-bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

/* ==========================================================================
   prefers-reduced-motion — disable all motion
   ========================================================================== */
@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;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}