/* ============================================================
   OPHICA CONSULTING — GLOBAL STYLES & RESET
   WCAG 2.2 AA Accessibility & Core Layout Foundation
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  background-color: var(--color-paper);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--type-body-size);
  font-weight: var(--type-body-weight);
  line-height: var(--type-body-line);
  letter-spacing: normal;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  z-index: 99999;
  background-color: var(--color-orange);
  color: var(--color-white);
  padding: 12px 20px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 20px;
  outline: 3px solid var(--color-white);
  outline-offset: 2px;
}

/* Base Headings & Typography */
h1 {
  font-size: var(--type-h1-size);
  font-weight: var(--type-h1-weight);
  line-height: var(--type-h1-line);
  letter-spacing: var(--type-h1-tracking);
  color: var(--color-text);
}

h2 {
  font-size: var(--type-h2-size);
  font-weight: var(--type-h2-weight);
  line-height: var(--type-h2-line);
  letter-spacing: var(--type-h2-tracking);
  color: var(--color-text);
}

h3 {
  font-size: var(--type-h3-size);
  font-weight: var(--type-h3-weight);
  line-height: var(--type-h3-line);
  letter-spacing: var(--type-h3-tracking);
  color: var(--color-text);
}

h4 {
  font-size: var(--type-h4-size);
  font-weight: var(--type-h4-weight);
  line-height: var(--type-h4-line);
  letter-spacing: var(--type-h4-tracking);
  color: var(--color-text);
}

p {
  font-size: var(--type-body-size);
  font-weight: var(--type-body-weight);
  line-height: var(--type-body-line);
  color: var(--color-muted);
}

.lead, .hero-lead {
  font-size: var(--type-lead-size);
  font-weight: var(--type-lead-weight);
  line-height: var(--type-lead-line);
  color: #454545;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* Global Focus Rings for Keyboard Accessibility */
:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
}

/* Anchor Scroll Offsets */
section[id], div[id], main[id] {
  scroll-margin-top: calc(var(--header-height-desktop) + 16px);
}

@media (max-width: 768px) {
  section[id], div[id], main[id] {
    scroll-margin-top: calc(var(--header-height-mobile) + 12px);
  }
}

/* Global Container System */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding-desktop);
  padding-right: var(--container-padding-desktop);
}

@media (max-width: 1024px) {
  .container {
    padding-left: var(--container-padding-tablet);
    padding-right: var(--container-padding-tablet);
  }
}

@media (max-width: 600px) {
  .container {
    padding-left: var(--container-padding-mobile);
    padding-right: var(--container-padding-mobile);
  }
}

@media (max-width: 360px) {
  .container {
    padding-left: var(--container-padding-small);
    padding-right: var(--container-padding-small);
  }
}

/* Global Section Rhythm */
.section {
  padding-top: var(--section-padding-desktop);
  padding-bottom: var(--section-padding-desktop);
}

@media (max-width: 1024px) {
  .section {
    padding-top: var(--section-padding-tablet);
    padding-bottom: var(--section-padding-tablet);
  }
}

@media (max-width: 768px) {
  .section {
    padding-top: var(--section-padding-mobile);
    padding-bottom: var(--section-padding-mobile);
  }
}

@media (max-width: 390px) {
  .section {
    padding-top: var(--section-padding-small);
    padding-bottom: var(--section-padding-small);
  }
}

/* Section Background Themes */
.section-paper {
  background-color: var(--color-paper);
}

.section-white {
  background-color: var(--color-white);
}

.section-dark {
  background-color: var(--color-black);
  color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-dark p {
  color: var(--color-muted-secondary);
}

.section-dark-alt {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.section-dark-alt h1,
.section-dark-alt h2,
.section-dark-alt h3,
.section-dark-alt h4 {
  color: var(--color-white);
}

.section-dark-alt p {
  color: var(--color-muted-secondary);
}

/* Instant Hero Visibility (No loading lag) */
.hero-section .reveal {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* Fast, Crisp Scroll Reveal (Instant on entry) */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.28s ease-out,
              transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.visible,
.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------------------------------------------------
   GLOBAL KEYFRAME ANIMATIONS & IMAGE EFFECTS
   ------------------------------------------------------------ */
@keyframes imageSweep {
  0% { left: -100%; opacity: 0; }
  20% { opacity: 1; }
  100% { left: 160%; opacity: 0; }
}

@keyframes gentleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes orangePulse {
  0%, 100% { box-shadow: 0 0 0 rgba(239, 91, 63, 0); }
  50% { box-shadow: 0 0 20px rgba(239, 91, 63, 0.2); }
}

/* Shimmer Sweep Pseudo-Elements on Media Frames */
.hero-image-wrap,
.challenge-image,
.service-slide-image,
.service-group-image,
.story-image,
.vision-image,
.difference-image,
.who-card-image {
  position: relative;
  overflow: hidden;
}

.hero-image-wrap::after,
.challenge-image::after,
.service-slide-image::after,
.service-group-image::after,
.story-image::after,
.vision-image::after,
.difference-image::after,
.who-card-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 55%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transform: skewX(-20deg);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-image-wrap:hover::after,
.challenge-image:hover::after,
.service-slide:hover .service-slide-image::after,
.service-group-row:hover .service-group-image::after,
.story-image:hover::after,
.vision-image:hover::after,
.difference-image:hover::after,
.who-card:hover .who-card-image::after {
  opacity: 1;
  animation: imageSweep 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Touch-Hold Image State */
.image-hold {
  transform: scale(1.02) !important;
  box-shadow: 0 24px 50px rgba(239, 91, 63, 0.18) !important;
}

.image-hold img {
  transform: scale(1.05) !important;
  filter: saturate(1.08) contrast(1.02) !important;
}

.image-hold::after {
  opacity: 1 !important;
  animation: imageSweep 1.1s ease forwards !important;
}

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

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .hero-image-wrap::after,
  .challenge-image::after,
  .service-slide-image::after,
  .service-group-image::after,
  .story-image::after,
  .vision-image::after,
  .difference-image::after,
  .who-card-image::after {
    display: none !important;
  }
}