/* Color Tokens */
:root {
  --p-color: #4CAF50;
  --r-color: #F4B400;
  --i-color: #3B82F6;
  --s-color: #A855F7;
  --m-color: #EF4444;
}

/* --- Section A: Hero --- */
.approach-hero {
  height: 70vh;
  /* Dark overlay + standard professional background image style */
  background: linear-gradient(rgba(5, 5, 5, 0.85), rgba(5, 5, 5, 0.7)), 
              url('https://firebasestorage.googleapis.com/v0/b/instantcorp-2390d.firebasestorage.app/o/hero_approach.webp?alt=media&token=7a8942d3-d993-4e05-8bf9-18887011152e') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.approach-hero .hero-content {
  max-width: 800px;
  padding: 0 2rem;
}

.approach-hero .hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 5vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.approach-hero .hero-subtitle {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--gray-text);
  line-height: 1.6;
}

/* --- Section B: Pillars Grid --- */
.pillars-section {
  background-color: var(--black);
  padding: 120px 0;
}

.pillar-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
  margin-bottom: 140px;
}

.pillar-row:last-child {
  margin-bottom: 0;
}

/* Alternating Layout Logic */
.pillar-row:nth-child(even) .pillar-text {
  order: 2;
}
.pillar-row:nth-child(even) .pillar-tile-wrapper {
  order: 1;
}

.pillar-text {
  display: flex;
  flex-direction: column;
}

.pillar-accent {
  width: 40px;
  height: 3px;
  background-color: var(--green);
  margin-bottom: 2rem;
}

.pillar-title {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--white);
  letter-spacing: -1px;
}

.pillar-subtitle {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
}

.pillar-body {
  font-family: var(--font-body);
  color: var(--gray-text);
  line-height: 1.8;
  font-size: 1.05rem;
  font-weight: 300;
}

/* Tile Styling */
.pillar-tile-wrapper {
  display: flex;
  justify-content: center;
}

.pillar-tile {
  width: 350px;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #080808;
  border: 1px solid transparent;
  position: relative;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), 
                box-shadow 0.4s ease, 
                border-color 0.4s ease;
    cursor: pointer;
    overflow: hidden;
}

.pillar-p:hover .pillar-tile { 
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(76, 175, 80, 0.2); 
    border-color: #66bb6a;
}

.pillar-r:hover .pillar-tile { 
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(244, 180, 0, 0.2); 
    border-color: #ffca28;
}

.pillar-i:hover .pillar-tile { 
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.2); 
    border-color: #60a5fa;
}

.pillar-s:hover .pillar-tile { 
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(168, 85, 247, 0.2); 
    border-color: #c084fc;
}

.pillar-m:hover .pillar-tile { 
    transform: scale(1.02);
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.2); 
    border-color: #f87171;
}

.pillar-row:hover .pillar-letter {
    animation: letterPulse 2s infinite ease-in-out;
}

.pillar-letter {
  font-family: var(--font-heading);
  font-size: 9rem;
  font-weight: 800;
}

/* Pillar Specific Colors & Glows */
.pillar-p .pillar-tile { border-color: var(--p-color); box-shadow: 0 0 20px rgba(76, 175, 80, 0.05); }
.pillar-p .pillar-letter { color: var(--p-color); }

.pillar-r .pillar-tile { border-color: var(--r-color); box-shadow: 0 0 20px rgba(244, 180, 0, 0.05); }
.pillar-r .pillar-letter { color: var(--r-color); }

.pillar-i .pillar-tile { border-color: var(--i-color); box-shadow: 0 0 20px rgba(59, 130, 246, 0.05); }
.pillar-i .pillar-letter { color: var(--i-color); }

.pillar-s .pillar-tile { border-color: var(--s-color); box-shadow: 0 0 20px rgba(168, 85, 247, 0.05); }
.pillar-s .pillar-letter { color: var(--s-color); }

.pillar-m .pillar-tile { border-color: var(--m-color); box-shadow: 0 0 20px rgba(239, 68, 68, 0.05); }
.pillar-m .pillar-letter { color: var(--m-color); }

/* --- Section C: Framework Section --- */
.framework-section {
  background-color: var(--white);
  color: var(--black);
  padding: 140px 0;
  text-align: center;
}

.framework-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 3.5rem;
  letter-spacing: -1px;
}

.framework-text-wrapper {
  max-width: 850px;
  margin: 0 auto;
}

.framework-p {
  font-family: var(--font-body);
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.framework-p:last-child {
  margin-bottom: 0;
  font-weight: 600;
  color: var(--black);
}

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
  .pillar-row { gap: 60px; }
  .pillar-tile { width: 300px; }
  .pillar-letter { font-size: 7rem; }
}

@media (max-width: 768px) {
  .pillar-row { grid-template-columns: 1fr; gap: 50px; text-align: center; }
  .pillar-accent { margin: 0 auto 2rem; }
  .pillar-row:nth-child(even) .pillar-text { order: 1; }
  .pillar-row:nth-child(even) .pillar-tile-wrapper { order: 2; }
  .pillar-title { font-size: 2.5rem; }
  .framework-title { font-size: 2.5rem; }
}

@keyframes letterPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}