/* style.css — Kodiak Industries Design Tokens & Components */

/* ============================================================
   FONTS
   ============================================================ */

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Arial Black', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* LIGHT MODE (Kodiak: navy + orange) */
:root, [data-theme="light"] {
  --color-bg:             #f5f5f0;
  --color-surface:        #ffffff;
  --color-surface-2:      #fafaf7;
  --color-surface-offset: #eceae5;
  --color-divider:        #d6d3cc;
  --color-border:         #ccc9c2;

  --color-text:           #1a2332;
  --color-text-muted:     #5a6577;
  --color-text-faint:     #9aa3b0;
  --color-text-inverse:   #ffffff;

  /* Primary = Kodiak Navy */
  --color-primary:        #1b3a5c;
  --color-primary-hover:  #142d48;
  --color-primary-active: #0e2035;
  --color-primary-light:  #e8edf3;

  /* Accent = Kodiak Orange */
  --color-accent:         #e87a1e;
  --color-accent-hover:   #d06a14;
  --color-accent-active:  #b85a0e;
  --color-accent-light:   #fef3e8;

  --color-success:        #437a22;
  --color-error:          #a13544;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 250 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 250 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 250 / 0.12);
}

/* DARK MODE — lighter navy, not pure black */
[data-theme="dark"] {
  --color-bg:             #162233;
  --color-surface:        #1c2b40;
  --color-surface-2:      #21324a;
  --color-surface-offset: #192638;
  --color-divider:        #2c3e55;
  --color-border:         #36495f;

  --color-text:           #dce3ec;
  --color-text-muted:     #94a5b8;
  --color-text-faint:     #5a6f85;
  --color-text-inverse:   #162233;

  --color-primary:        #6a9fd0;
  --color-primary-hover:  #5a8fc0;
  --color-primary-active: #4a7fb0;
  --color-primary-light:  #1f3350;

  --color-accent:         #f09440;
  --color-accent-hover:   #e8841e;
  --color-accent-active:  #d87414;
  --color-accent-light:   #2e2316;

  --color-success:        #6daa45;
  --color-error:          #dd6974;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.15);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.22);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #162233;
    --color-surface:        #1c2b40;
    --color-surface-2:      #21324a;
    --color-surface-offset: #192638;
    --color-divider:        #2c3e55;
    --color-border:         #36495f;
    --color-text:           #dce3ec;
    --color-text-muted:     #94a5b8;
    --color-text-faint:     #5a6f85;
    --color-text-inverse:   #162233;
    --color-primary:        #6a9fd0;
    --color-primary-hover:  #5a8fc0;
    --color-primary-active: #4a7fb0;
    --color-primary-light:  #1f3350;
    --color-accent:         #f09440;
    --color-accent-hover:   #e8841e;
    --color-accent-active:  #d87414;
    --color-accent-light:   #2e2316;
    --color-success:        #6daa45;
    --color-error:          #dd6974;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.15);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.22);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.3);
  }
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition: box-shadow 0.3s var(--ease-out);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo img {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.header__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.header__logo-text span {
  color: var(--color-accent);
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .header__nav { display: flex; }
}

.header__nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color var(--transition-interactive);
}

.header__nav a:hover {
  color: var(--color-accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: oklch(from var(--color-text) l c h / 0.06);
}

.mobile-menu-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
}

@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: var(--space-20) var(--space-6) var(--space-6);
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) 0;
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition: color var(--transition-interactive);
}

.mobile-nav a:hover {
  color: var(--color-accent);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    oklch(0.1 0.02 250 / 0.95) 0%,
    oklch(0.1 0.02 250 / 0.7) 40%,
    oklch(0.1 0.02 250 / 0.3) 70%,
    oklch(0.1 0.02 250 / 0.1) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-bottom: clamp(var(--space-12), 8vw, var(--space-24));
  padding-top: var(--space-32);
}

/* Hero brand mark */
.hero__brand-mark {
  margin-bottom: var(--space-5);
}

.hero__brand-mark img {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-xl);
  object-fit: contain;
  filter: drop-shadow(0 4px 12px oklch(0 0 0 / 0.3));
  background: rgba(255,255,255,0.95);
  padding: 4px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: oklch(from var(--color-accent) l c h / 0.15);
  color: var(--color-accent);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  border: 1px solid oklch(from var(--color-accent) l c h / 0.25);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  max-width: 18ch;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  max-width: 52ch;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

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

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px oklch(from var(--color-accent) l c h / 0.3);
}

.btn--secondary {
  background: oklch(from #ffffff l c h / 0.12);
  color: #ffffff;
  border: 1px solid oklch(from #ffffff l c h / 0.2);
}

.btn--secondary:hover {
  background: oklch(from #ffffff l c h / 0.2);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============================================================
   SECTION PATTERNS
   ============================================================ */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.section--dark {
  background: var(--color-primary);
  color: #ffffff;
}

.section--dark .section__label { color: var(--color-accent); }
.section--dark .section__title { color: #ffffff; }
.section--dark .section__desc { color: rgba(255,255,255,0.7); }

.section--alt {
  background: var(--color-surface-offset);
}

.section__header {
  margin-bottom: clamp(var(--space-8), 5vw, var(--space-16));
}

.section__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
  line-height: 1.7;
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats {
  background: #1b3a5c;
  padding-block: var(--space-8);
}

.stats__brand {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.stats__logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  opacity: 0.4;
  background: rgba(255,255,255,0.9);
  padding: 3px;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  text-align: center;
}

@media (min-width: 768px) {
  .stats__grid { grid-template-columns: repeat(4, 1fr); }
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services__grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
  background: var(--color-surface);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

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

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.service-card__icon svg {
  width: 32px;
  height: 32px;
  stroke-width: 1.5;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   FEATURE SPLIT (Image + Text)
   ============================================================ */
.feature-split {
  display: grid;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center;
}

@media (min-width: 768px) {
  .feature-split { grid-template-columns: 1fr 1fr; }
  .feature-split--reverse .feature-split__image { order: 2; }
  .feature-split--reverse .feature-split__content { order: 1; }
}

.feature-split__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
}

.feature-split__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-split__content .section__title {
  font-size: var(--text-xl);
}

.feature-list {
  list-style: none;
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.feature-list li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  margin-top: 2px;
}

/* Section brand mark (used in track record, etc.) */
.section__brand-mark {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.section__brand-mark img {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  opacity: 0.15;
  background: rgba(255,255,255,0.9);
  padding: 3px;
}

/* ============================================================
   TRACK RECORD
   ============================================================ */
.track-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .track-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .track-grid { grid-template-columns: repeat(4, 1fr); }
}

.track-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.track-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: var(--radius-lg);
}

.track-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.track-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Credentials */
.credentials {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-top: clamp(var(--space-8), 4vw, var(--space-12));
  padding-top: clamp(var(--space-6), 3vw, var(--space-8));
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
}

.credential {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  border: 1px solid oklch(from var(--color-text) l c h / 0.1);
  border-radius: var(--radius-full);
}

.credential svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ============================================================
   COLD WEATHER CALLOUT (compact banner)
   ============================================================ */
.cold-callout {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-10), 6vw, var(--space-16));
}

.cold-callout__bg {
  position: absolute;
  inset: 0;
}

.cold-callout__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cold-callout__overlay {
  position: absolute;
  inset: 0;
  background: oklch(0.12 0.03 250 / 0.82);
}

.cold-callout__content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
}

.cold-callout__text {
  max-width: 640px;
}

.cold-callout__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-3);
}

.cold-callout__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
}

/* ============================================================
   PROCESS / TIMELINE
   ============================================================ */
.process__steps {
  display: grid;
  gap: var(--space-6);
  counter-reset: step;
}

@media (min-width: 768px) {
  .process__steps { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .process__steps { grid-template-columns: repeat(4, 1fr); }
}

.process-step {
  position: relative;
  counter-increment: step;
}

.process-step__number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: oklch(from var(--color-accent) l c h / 0.15);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.process-step__number::before {
  content: counter(step, decimal-leading-zero);
}

.process-step__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.process-step__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: #1b3a5c;
  text-align: center;
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.cta__logo {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.cta__logo img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  object-fit: contain;
  opacity: 0.3;
  background: rgba(255,255,255,0.95);
  padding: 5px;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.cta-section__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.7);
  max-width: 48ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
  padding-block: var(--space-12) var(--space-8);
}

.footer__top {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .footer__top { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer__logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.footer__logo-img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  background: rgba(255,255,255,0.95);
  padding: 3px;
}

.footer__brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  max-width: 32ch;
  line-height: 1.65;
}

.footer__col h4 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer__col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__col a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  padding-top: var(--space-6);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.06);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* Fallback with IntersectionObserver */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   UTILITY
   ============================================================ */
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }