/* ==========================================================================
   TBS Co. About Page Style Sheet (Vanilla CSS3)
   ========================================================================== */

/* 1. Reuse existing design system tokens and common layouts */
@import url('style.css');

/* Active Navigation Highlight */
.desktop-nav a[href="about.html"] {
  color: var(--color-teal);
  border-bottom: 2px solid var(--color-teal);
  padding-bottom: 0.25rem;
}

.mobile-nav-link[href="about.html"] {
  color: var(--color-teal);
}

/* 2. dot mesh background utility */
.dot-mesh-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--color-slate-200) 1px, transparent 1px);
  background-size: 16px 16px;
  opacity: 0.4;
  z-index: 0;
  pointer-events: none;
}

/* 3. The Executive Stage Hero Section */
.about-hero {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 6rem;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-slate-100);
  overflow: hidden;
}

@media (min-width: 768px) {
  .about-hero {
    padding-top: 10rem;
    padding-bottom: 8rem;
  }
}

.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .about-hero-grid {
    grid-template-columns: 7fr 5fr;
  }
}

.about-hero-left {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.about-hero-tag {
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
}

@media (min-width: 768px) {
  .about-hero-tag {
    font-size: 0.875rem;
  }
}

.about-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.875rem;
  line-height: 1.1;
  color: var(--color-navy);
  letter-spacing: -0.025em;
}

@media (min-width: 640px) {
  .about-hero-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .about-hero-title {
    font-size: 3rem;
  }
}

.about-hero-narrative {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--color-slate-600);
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.625;
}

@media (min-width: 768px) {
  .about-hero-narrative {
    font-size: 1rem;
  }
}

.about-hero-narrative strong {
  color: var(--color-navy);
  font-weight: 600;
}

.about-bilingual-block {
  border-top: 1px solid var(--color-slate-100);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

.about-ceo-quote-ar {
  font-family: var(--font-arabic);
  font-weight: 700;
  font-size: 0.875rem;
  line-height: 1.625;
  text-align: right;
  direction: rtl;
  color: var(--color-teal);
}

@media (min-width: 768px) {
  .about-ceo-quote-ar {
    font-size: 1rem;
  }
}

.about-ceo-signature-ar {
  text-align: right;
  direction: rtl;
  font-family: monospace;
  font-size: 10px;
  color: var(--color-slate-400);
  margin-top: 0.5rem;
}

/* Statistics row */
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  border-top: 1px solid var(--color-slate-100);
  padding-top: 1.5rem;
}

.about-stat-card-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--color-navy);
  line-height: 1;
}

.about-stat-card-num.color-teal {
  color: var(--color-teal);
}

.about-stat-card-num.color-orange {
  color: var(--color-orange);
}

@media (min-width: 768px) {
  .about-stat-card-num {
    font-size: 2rem;
  }
}

.about-stat-card-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-400);
  margin-top: 0.25rem;
  line-height: 1.2;
}

/* Right Column blueprint schematic graphics */
.about-blueprint-panel {
  position: relative;
  background-color: var(--color-navy);
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--color-slate-800);
  box-shadow: var(--shadow-2xl);
  display: flex;
  flex-direction: column;
  min-height: 380px;
  overflow: hidden;
}

.about-blueprint-grid {
  position: absolute;
  inset: 0;
  background-color: #0F172A;
  background-image: 
    linear-gradient(rgba(0, 122, 134, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 122, 134, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}

.about-blueprint-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  flex-grow: 1;
}

.blueprint-header-bar {
  display: flex;
  align-items: center;
  justify-content: justify;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0, 122, 134, 0.3);
  padding-bottom: 0.75rem;
}

.blueprint-status-indicator {
  font-family: monospace;
  font-size: 9px;
  font-weight: 700;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.blueprint-pulse-dot {
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--color-teal);
  border-radius: 50%;
  position: relative;
  display: inline-block;
}

.blueprint-pulse-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--color-teal);
  animation: ping-custom 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.blueprint-signoff-label {
  font-family: monospace;
  font-size: 8px;
  color: var(--color-slate-500);
}

.blueprint-vector-wrapper {
  position: relative;
  height: 12rem;
  border: 1px solid rgba(0, 122, 134, 0.2);
  background-color: rgba(2, 6, 23, 0.8);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 1.5rem 0;
}

.blueprint-dot-matrix {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0, 122, 134, 0.15) 1.5px, transparent 1.5px);
  background-size: 12px 12px;
  opacity: 0.4;
  pointer-events: none;
}

.blueprint-svg {
  width: 80%;
  height: 80%;
  color: rgba(0, 122, 134, 0.4);
}

.blueprint-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-slate-800);
  padding-top: 0.75rem;
  font-family: monospace;
  font-size: 9px;
  color: var(--color-slate-500);
}

.blueprint-cr-code {
  color: var(--color-orange);
  font-weight: 700;
}


/* 4. Pillars & Operational Blueprint Cards */
.about-pillars-section {
  padding: 6rem 0;
  background-color: var(--color-slate-50);
}

.section-header-centered {
  text-align: center;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 4rem;
}

.section-header-tag {
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

.section-header-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.875rem;
  color: var(--color-navy);
}

@media (min-width: 640px) {
  .section-header-title {
    font-size: 2.25rem;
  }
}

.section-header-divider {
  width: 3rem;
  height: 0.25rem;
  background-color: var(--color-orange);
  margin: 1rem auto 0 auto;
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: stretch;
}

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

.pillar-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-100);
  padding: 2rem;
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-bottom-width var(--transition-fast), border-color var(--transition-normal);
}

.pillar-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: var(--shadow-2xl);
  border-bottom: 4px solid var(--color-teal);
}

.pillar-card-icon-box {
  width: 3rem;
  height: 3rem;
  border-radius: 0.5rem;
  background-color: var(--color-teal-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal);
  margin-bottom: 1.5rem;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.pillar-card:hover .pillar-card-icon-box {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.pillar-card-pretag {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-slate-400);
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  display: block;
}

.pillar-card-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.pillar-card-subtitle {
  font-family: monospace;
  font-size: 9px;
  font-weight: 700;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  display: block;
}

.pillar-card-desc {
  color: var(--color-slate-500);
  font-size: 0.75rem;
  font-weight: 300;
  line-height: 1.625;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .pillar-card-desc {
    font-size: 0.875rem;
  }
}

.pillar-card-commandments-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.pillar-commandment-item {
  display: flex;
  align-items: start;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-slate-500);
  line-height: 1.5;
}

.pillar-commandment-bullet {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background-color: var(--color-teal);
  margin-top: 0.375rem;
  flex-shrink: 0;
}

.pillar-commandment-item strong {
  color: var(--color-navy);
  font-weight: 600;
}

.pillar-card-footer {
  border-top: 1px solid var(--color-slate-100);
  padding-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-slate-400);
}

.pillar-card-footer span.footer-highlight {
  color: var(--color-teal);
  font-weight: 700;
}


/* 5. Stepper Pipeline & Safety record banner */
.about-pipeline-section {
  padding: 6rem 0;
  background-color: var(--color-white);
  scroll-margin-top: 100px;
}

.pipeline-stepper-container {
  position: relative;
  margin-bottom: 6rem;
}

.pipeline-connector-line {
  display: none;
  position: absolute;
  top: 50%;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background-color: var(--color-slate-200);
  transform: translateY(-50%);
  z-index: 0;
}

@media (min-width: 1024px) {
  .pipeline-connector-line {
    display: block;
  }
}

.pipeline-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .pipeline-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.pipeline-step-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: 0.75rem;
  padding: 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: all var(--transition-normal);
}

.pipeline-step-card:hover {
  box-shadow: 0 15px 30px -10px rgba(0, 122, 134, 0.15);
  border-color: var(--color-teal);
}

.pipeline-step-circle {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: var(--color-teal-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal);
  font-weight: 700;
  margin: 0 auto 1rem auto;
  border: 1px solid rgba(0, 122, 134, 0.3);
}

.pipeline-step-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--color-navy);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.pipeline-step-desc {
  color: var(--color-slate-500);
  font-size: 0.75rem;
  font-weight: 300;
  line-height: 1.625;
}

.pipeline-step-footer {
  font-family: monospace;
  font-size: 9px;
  color: var(--color-slate-400);
  margin-top: 1rem;
  border-top: 1px solid var(--color-slate-100);
  padding-top: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
}


/* 6. HSE Safety Banner (High Contrast) */
.safety-banner {
  position: relative;
  background-color: var(--color-navy);
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--color-slate-800);
  box-shadow: var(--shadow-2xl);
  padding: 2rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .safety-banner {
    padding: 3rem;
  }
}

.safety-stripe-accent {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0.75rem;
  background-color: var(--color-orange);
}

.safety-gradient-fade {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 6rem;
  background-image: linear-gradient(to left, var(--color-orange-glow), transparent);
  pointer-events: none;
}

.safety-banner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .safety-banner-grid {
    grid-template-columns: 8fr 4fr;
  }
}

.safety-banner-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.safety-banner-tag {
  color: var(--color-orange);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  background-color: var(--color-orange-light);
  border: 1px solid var(--color-orange-glow);
  padding: 0.25rem 0.75rem;
  border-radius: 0.25rem;
  display: inline-block;
}

.safety-banner-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--color-white);
  line-height: 1.25;
}

@media (min-width: 640px) {
  .safety-banner-title {
    font-size: 1.875rem;
  }
}

.safety-banner-title span {
  color: var(--color-orange);
}

.safety-banner-desc {
  color: var(--color-slate-300);
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.625;
}

.safety-banner-right {
  display: flex;
  justify-content: center;
}

@media (min-width: 1024px) {
  .safety-banner-right {
    justify-content: flex-end;
  }
}

.safety-record-box {
  border: 2px solid var(--color-orange-glow);
  background-color: var(--color-orange-light);
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
  max-width: 200px;
  width: 100%;
  box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
}

.safety-record-label {
  color: var(--color-slate-400);
  font-size: 10px;
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.25rem;
}

.safety-record-value {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.875rem;
  color: var(--color-white);
}

.safety-record-metric {
  font-size: 9px;
  font-weight: 700;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-top: 0.25rem;
}

.safety-record-sub {
  font-size: 8px;
  color: var(--color-slate-500);
  display: block;
  margin-top: 0.25rem;
}


/* 7. Legal Compliance Sub-Bar */
.legal-bar {
  background-color: var(--color-slate-100);
  border: 1px solid var(--color-slate-200);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 768px) {
  .legal-bar {
    flex-direction: row;
  }
}

.legal-title-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.legal-icon-box {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: var(--color-teal-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-teal);
  flex-shrink: 0;
}

.legal-bar-title {
  font-family: monospace;
  font-size: 10px;
  font-weight: 700;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (min-width: 640px) {
  .legal-bar-title {
    font-size: 12px;
  }
}

.legal-info-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  font-family: monospace;
  font-size: 10px;
  color: var(--color-slate-500);
}

@media (min-width: 768px) {
  .legal-info-items {
    justify-content: flex-end;
    gap: 2rem;
    font-size: 12px;
    flex-wrap: nowrap;
  }
}

.legal-info-items span strong {
  color: var(--color-navy);
  font-weight: 700;
}

.legal-info-divider {
  display: none;
  color: var(--color-slate-300);
}

@media (min-width: 768px) {
  .legal-info-divider {
    display: inline;
  }
}


/* 8. B2B Closing Procurement Funnel */
.closing-rfq-section {
  position: relative;
  background-color: var(--color-navy);
  padding: 6rem 0;
  overflow: hidden;
  text-align: center;
  scroll-margin-top: 100px;
}

.closing-rfq-blueprint {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  pointer-events: none;
}

.closing-rfq-container {
  position: relative;
  z-index: 10;
  max-width: 64rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.closing-rfq-tag {
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 1rem;
}

.closing-rfq-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.875rem;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .closing-rfq-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .closing-rfq-title {
    font-size: 3rem;
  }
}

.closing-rfq-desc {
  color: var(--color-slate-300);
  font-weight: 300;
  font-size: 1rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2.5rem;
  line-height: 1.625;
}

@media (min-width: 768px) {
  .closing-rfq-desc {
    font-size: 1.125rem;
  }
}

.closing-rfq-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

@media (min-width: 640px) {
  .closing-rfq-buttons {
    flex-direction: row;
  }
}

.closing-rfq-buttons .btn-primary {
  width: 100%;
}

.closing-rfq-buttons .btn-outline-white {
  width: 100%;
}

@media (min-width: 640px) {
  .closing-rfq-buttons .btn-primary {
    width: auto;
  }
  .closing-rfq-buttons .btn-outline-white {
    width: auto;
  }
}

.closing-rfq-assurance {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
  color: var(--color-slate-400);
  font-size: 0.75rem;
}

.closing-rfq-assurance svg {
  color: var(--color-teal);
  flex-shrink: 0;
}