/* ---------------------------------------------
   DiPStrategy -- Our Approach
   style/our-approach.css
   --------------------------------------------- */

.oa-page {
  background: #04172e;
  min-height: 100vh;
  position: relative;
}

/* --- OPENER --- */
.oa-opener {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.oa-opener-pattern {
  position: absolute;
  inset: 0;
  background-image: url('../assets/pattern-01.png');
  background-repeat: repeat;
  background-size: auto;
  opacity: 0.55;
  z-index: 0;
}

.oa-opener-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.82) 0%,
    rgba(0,0,0,0.55) 40%,
    rgba(0,0,0,0.15) 75%,
    rgba(0,0,0,0) 100%
  );
  z-index: 1;
}

.oa-opener-inner {
  position: relative;
  z-index: 2;
  padding: 180px 56px 100px;
  max-width: 1000px;
  margin: 0 auto;
}

.oa-eyebrow {
  font-family: var(--font-body);
  font-weight: 500; font-size: 11px;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  display: block; margin-bottom: 40px;
}

.oa-opener-label {
  font-family: var(--font-body);
  font-weight: 500; font-size: 11px;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--lime);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 24px;
}

.oa-opener-label::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--lime);
  display: inline-block;
}

.oa-opener-headline {
  font-family: var(--font-headline);
  font-weight: 200;
  font-size: clamp(28px, 4vw, 64px);
  color: var(--white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
  max-width: 820px;
}

.oa-opener-headline strong { font-weight: 900; }

.oa-opener-translation {
  font-family: var(--font-body);
  font-weight: 300; font-size: 15px;
  line-height: 1.75;
  color: rgba(255,255,255,0.35);
  max-width: 640px;
  font-style: italic;
}

.oa-opener-cta {
  margin-top: 40px;
}

.oa-divider {
  width: 100%; height: 1px;
  background: rgba(255,255,255,0.06);
  margin: 80px 0;
  position: relative; z-index: 1;
}

/* --- CONTEXT SECTION --- */
.oa-context-section {
  position: relative; z-index: 1;
  background: var(--cream);
  width: 100%;
  padding: 100px 56px;
  text-align: center;
}

.oa-context-body {
  font-family: var(--font-headline);
  font-weight: 200;
  font-size: clamp(20px, 2.2vw, 30px);
  line-height: 1.45;
  color: #04172e;
  letter-spacing: -0.01em;
  max-width: 760px;
  margin: 0 auto;
}

/* --- FRAMEWORK SECTION --- */
.oa-framework-section {
  position: relative; z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  padding: 70px 56px 0;
}

.oa-framework-header {
  margin-bottom: 56px;
}

.oa-framework-label {
  font-family: var(--font-body);
  font-weight: 500; font-size: 11px;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--lime);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 20px;
}

.oa-framework-label::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--lime);
  display: inline-block;
}

.oa-framework-intro {
  font-family: var(--font-headline);
  font-weight: 200;
  font-size: clamp(22px, 2.5vw, 36px);
  color: rgba(255,255,255,0.5);
  letter-spacing: -0.02em;
  line-height: 1.3;
  max-width: 640px;
}

.oa-framework-intro strong { font-weight: 900; color: var(--white); }

/* Framework image */
.oa-framework-image-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 80px;
}

.oa-framework-image {
  width: 100%;
  max-width: 420px;
  height: auto;
  display: block;
}

/* Steps list -- mirrors sej-milestone-list pattern */
.oa-steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-bottom: 140px;
}

.oa-step-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 48px;
  padding: 56px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  align-items: start;
  position: relative;
}

.oa-step-item:first-child { padding-top: 56px; }
.oa-step-item:last-child { border-bottom: none; }

.oa-step-number {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(36px, 4vw, 64px);
  color: rgba(255,255,255,0.06);
  letter-spacing: -0.04em;
  line-height: 1;
  padding-top: 4px;
}

.oa-step-content {
  max-width: 680px;
}

.oa-step-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.oa-step-name {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 28px);
  color: var(--white);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.oa-step-stagelabel {
  font-family: var(--font-body);
  font-weight: 400; font-size: 13px;
  font-style: italic;
  color: rgba(255,255,255,0.35);
}

.oa-step-narrative {
  font-family: var(--font-body);
  font-weight: 300; font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  margin-bottom: 18px;
}

.oa-step-proof {
  font-family: var(--font-body);
  font-weight: 500; font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.oa-step-proof-arrow {
  color: var(--lime);
  flex-shrink: 0;
}

/* --- BRIDGE SECTION --- */
.oa-bridge-section {
  position: relative; z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 56px 100px;
}

.oa-bridge-headline {
  font-family: var(--font-headline);
  font-weight: 200;
  font-size: clamp(22px, 2.5vw, 36px);
  color: rgba(255,255,255,0.5);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 32px;
}

.oa-bridge-headline strong { font-weight: 900; color: var(--white); }

.oa-bridge-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.oa-bridge-body p {
  font-family: var(--font-body);
  font-weight: 300; font-size: 16px;
  line-height: 1.85;
  color: rgba(255,255,255,0.55);
}

/* --- CTA SECTION --- */
.oa-cta-section {
  position: relative; z-index: 1;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 56px 160px;
  text-align: center;
}

.oa-cta-headline {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 38px);
  color: var(--white);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 20px;
}

.oa-cta-subline {
  font-family: var(--font-body);
  font-weight: 300; font-size: 16px;
  line-height: 1.75;
  color: rgba(255,255,255,0.5);
  margin-bottom: 40px;
}

.oa-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 500; font-size: 15px;
  letter-spacing: 0.02em;
  color: #04172e;
  background: var(--lime);
  padding: 16px 36px;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.oa-cta-button:hover { opacity: 0.85; }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .oa-opener-inner       { padding: 140px 24px 60px; }
  .oa-opener-cta         { flex-direction: column; align-items: stretch; }
  .oa-opener-cta .btn    { justify-content: center; }
  .oa-context-section    { padding: 60px 24px; }
  .oa-framework-section  { padding: 70px 24px 0; }
  .oa-bridge-section      { padding: 0 24px 80px; }
  .oa-cta-section         { padding: 0 24px 100px; }

  .oa-step-item         { grid-template-columns: 1fr; gap: 16px; }
  .oa-step-number       { font-size: 32px; }

  .oa-step-heading      { flex-direction: column; gap: 6px; }
}