/* SK Farm Systems – Corporate Blue/Gold Theme */

/* -------------------- DESIGN TOKENS -------------------- */

:root,
[data-theme="light"] {
  /* 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);

  /* 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;

  /* Corporate palette – light mode */
  --color-bg:              #eef1f5;
  --color-surface:         #f8fbff;
  --color-surface-2:       #ffffff;
  --color-surface-offset:  #e4eaf3;
  --color-surface-offset-2:#d8e1ee;
  --color-divider:         #c9d4e3;
  --color-border:          #b7c6da;

  --color-text:            #1b3353;
  --color-text-muted:      #5a6f8f;
  --color-text-faint:      #8ca0bc;
  --color-text-inverse:    #f8fbff;

  /* Deep blue primary */
  --color-primary:         #0a4a8a;
  --color-primary-hover:   #083a6d;
  --color-primary-active:  #062b52;
  --color-primary-highlight: #d7e4f4;

  /* Gold accent */
  --color-accent:          #cfa33a;
  --color-accent-hover:    #b68624;
  --color-accent-highlight:#f4e6c1;

  --color-success:         #2f7d54;
  --color-error:           #b14a42;

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

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.09);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);

  --content-narrow:  640px;
  --content-default: 980px;
  --content-wide:    1200px;

  --font-body:    "Plus Jakarta Sans", "Helvetica Neue", sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
}

/* Dark mode */

[data-theme="dark"] {
  --color-bg:              #081a2f;
  --color-surface:         #0d233f;
  --color-surface-2:       #102a49;
  --color-surface-offset:  #112d4e;
  --color-surface-offset-2:#173558;
  --color-divider:         #183a63;
  --color-border:          #2d4f78;

  --color-text:            #eaf1fb;
  --color-text-muted:      #b3c6de;
  --color-text-faint:      #6f89a8;
  --color-text-inverse:    #0a1d33;

  --color-primary:         #5fa2f2;
  --color-primary-hover:   #4a90e2;
  --color-primary-active:  #3378c8;
  --color-primary-highlight: #12395f;

  --color-accent:          #e0b553;
  --color-accent-hover:    #c89b34;
  --color-accent-highlight:#3c3420;

  --color-success:         #66b68b;
  --color-error:           #e27a70;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
}

/* Respect system dark mode when no manual toggle is set */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #081a2f;
    --color-surface:         #0d233f;
    --color-surface-2:       #102a49;
    --color-surface-offset:  #112d4e;
    --color-surface-offset-2:#173558;
    --color-divider:         #183a63;
    --color-border:          #2d4f78;

    --color-text:            #eaf1fb;
    --color-text-muted:      #b3c6de;
    --color-text-faint:      #6f89a8;
    --color-text-inverse:    #0a1d33;

    --color-primary:         #5fa2f2;
    --color-primary-hover:   #4a90e2;
    --color-primary-active:  #3378c8;
    --color-primary-highlight: #12395f;

    --color-accent:          #e0b553;
    --color-accent-hover:    #c89b34;
    --color-accent-highlight:#3c3420;

    --color-success:         #66b68b;
    --color-error:           #e27a70;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.45);
  }
}

/* -------------------- RESET & BASE -------------------- */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

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

ul[role="list"] {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
}

p, li {
  text-wrap: pretty;
}

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

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

a,
button,
[role="button"] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    opacity var(--transition-interactive);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: color-mix(in oklab, var(--color-primary), transparent 75%);
}

/* -------------------- LAYOUT -------------------- */

.container {
  width: min(var(--content-default), 100% - var(--space-8) * 2);
  margin-inline: auto;
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

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

.section-header {
  max-width: var(--content-narrow);
  margin-block-end: var(--space-12);
}

.section-header p {
  color: var(--color-text-muted);
  margin-block-start: var(--space-3);
  font-size: var(--text-base);
}

.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-block-end: var(--space-3);
}

/* -------------------- HEADER & NAV -------------------- */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background:
    color-mix(in oklab, var(--color-bg), transparent 10%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition:
    box-shadow 0.3s ease,
    transform 0.3s cubic-bezier(0.16,1,0.3,1),
    border-color 0.3s ease;
}

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

.header--hidden {
  transform: translateY(-100%);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-text {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-inline-start: auto;
}

.nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}

.nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.nav-cta {
  background: var(--color-primary) !important;
  color: var(--color-text-inverse) !important;
  padding: var(--space-2) var(--space-5) !important;
  border-radius: var(--radius-full) !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-primary-hover) !important;
}

.theme-toggle {
  padding: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

.menu-toggle {
  display: none;
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-6) var(--space-4);
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
}

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

.mobile-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}

.mobile-nav a:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

@media (max-width: 720px) {
  .nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-inline-start: auto;
  }
}

/* -------------------- BUTTONS -------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-outline {
  border: 2px solid var(--color-border);
  color: var(--color-text);
}

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

/* -------------------- HERO -------------------- */

.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-24));
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-8);
  min-height: 85vh;
  background:
    radial-gradient(circle at top right,
      color-mix(in oklab, var(--color-accent), transparent 82%), transparent 35%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.hero-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-hover);
  background: var(--color-accent-highlight);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  width: fit-content;
}

.hero-heading {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  line-height: 1.08;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.hero-heading em {
  font-style: italic;
  color: var(--color-primary);
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  line-height: 1.6;
}

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

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block-start: var(--space-4);
  border-top: 1px solid var(--color-divider);
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-divider);
  flex-shrink: 0;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-diagram {
  position: relative;
  width: 340px;
  height: 340px;
  flex-shrink: 0;
}

.diagram-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-lg);
  z-index: 2;
}

.diagram-center span {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
}

.diagram-spoke {
  position: absolute;
  background: var(--color-surface-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
  width: 96px;
  text-align: center;
}

.spoke-1 { top: 8px; left: 50%; transform: translateX(-50%); }
.spoke-2 { top: 50%; right: 0; transform: translateY(-50%); }
.spoke-3 { bottom: 8px; left: 50%; transform: translateX(-50%); }
.spoke-4 { top: 50%; left: 0; transform: translateY(-50%); }

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    text-align: center;
  }

  .hero-sub {
    margin-inline: auto;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .section-header {
    max-width: 100%;
    text-align: center;
  }
}

/* -------------------- PROBLEM -------------------- */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.problem-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.problem-icon {
  width: 52px;
  height: 52px;
  background: color-mix(in oklab, var(--color-error), transparent 88%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-error);
}

.problem-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
}

.problem-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* -------------------- PRODUCT -------------------- */

.product-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-block-end: var(--space-12);
}

.product-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.product-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-block-end: var(--space-5);
}

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

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.feature-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.workflow-strip {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: var(--space-4);
  align-items: start;
  background: var(--color-surface-offset);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

.workflow-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.workflow-num {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}

.workflow-step h4 {
  font-size: var(--text-base);
  font-weight: 700;
}

.workflow-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.workflow-arrow {
  font-size: var(--text-lg);
  color: var(--color-text-faint);
  align-self: center;
  padding-block-start: var(--space-8);
}

@media (max-width: 768px) {
  .product-split {
    grid-template-columns: 1fr;
  }

  .workflow-strip {
    grid-template-columns: 1fr;
  }

  .workflow-arrow {
    display: none;
  }
}

/* -------------------- INNOVATION -------------------- */

.innovation-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.innovation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.innovation-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.innovation-kicker {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.innovation-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.innovation-card p {
  color: var(--color-text-muted);
}

@media (max-width: 900px) {
  .innovation-grid {
    grid-template-columns: 1fr;
  }
}

/* -------------------- TEAM -------------------- */

.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-block-end: var(--space-10);
}

.team-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.team-avatar {
  flex-shrink: 0;
}

.team-info h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-block-end: var(--space-1);
}

.team-title {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  display: block;
  margin-block-end: var(--space-3);
}

.team-info p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-block-end: var(--space-4);
}

.team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.team-tags span {
  font-size: var(--text-xs);
  font-weight: 500;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  color: var(--color-text-muted);
}

/* Company details strip */

.company-details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-8);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.detail-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.detail-val {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .team-grid {
    grid-template-columns: 1fr;
  }

  .team-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* -------------------- TRACTION / PROGRESS -------------------- */

.traction-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-block-end: var(--space-10);
}

.traction-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.traction-item h4 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-block-end: var(--space-1);
}

.traction-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.traction-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.traction-item.done .traction-icon {
  background: color-mix(in oklab, var(--color-success), transparent 85%);
  color: var(--color-success);
}

.traction-item.upcoming .traction-icon {
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .traction-grid {
    grid-template-columns: 1fr;
  }
}

/* -------------------- CONTACT -------------------- */

.contact-inner {
  text-align: center;
}

.contact-inner .section-header {
  margin-inline: auto;
  text-align: center;
}

.contact-grid {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  align-items: stretch;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  min-width: 220px;
}

.contact-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-card h4 {
  font-size: var(--text-base);
  font-weight: 700;
}

.contact-card a,
.contact-card span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.contact-card a:hover {
  color: var(--color-primary);
}

/* -------------------- FOOTER -------------------- */

.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-10);
  background: var(--color-surface-2);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* -------------------- SCROLL REVEAL -------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.5s cubic-bezier(0.16,1,0.3,1),
    transform 0.5s cubic-bezier(0.16,1,0.3,1);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* stagger example (you can adjust if needed) */
.problem-grid .reveal:nth-child(2),
.innovation-grid .reveal:nth-child(2),
.team-grid .reveal:nth-child(2),
.traction-grid .reveal:nth-child(2),
.workflow-strip .reveal:nth-child(2) {
  transition-delay: 80ms;
}

.problem-grid .reveal:nth-child(3),
.innovation-grid .reveal:nth-child(3),
.team-grid .reveal:nth-child(3),
.traction-grid .reveal:nth-child(3) {
  transition-delay: 160ms;
}