/* ============================================= */
/*  ABOUT PLATFORM PAGE — Axiom Matrix          */
/*  Premium content layout with tab navigation   */
/* ============================================= */

/* ========== Page Container ========== */
.about-page {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  padding-bottom: 60px;
}

/* ========== Hero Section ========== */
.about-hero {
  position: relative;
  padding: 60px 40px 48px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--primary-bg) 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-bg);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  border: 1px solid var(--border-primary);
}

.hero-badge i {
  font-size: 14px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 24px;
  line-height: 1.5;
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 500;
}

.meta-item i {
  color: var(--primary);
  font-size: 14px;
}

/* ========== Tab Navigation ========== */
.about-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 0 24px 24px;
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg-primary);
  padding-top: 16px;
  border-bottom: 1px solid var(--border-secondary);
}

.about-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border: 1px solid var(--border-primary);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}

[dir="rtl"] .about-tab {
  font-family: var(--font-ar);
}

.about-tab i {
  font-size: 14px;
}

.about-tab:hover {
  background: var(--primary-bg);
  color: var(--primary);
  border-color: var(--primary);
}

.about-tab.active {
  background: var(--gradient-btn);
  color: var(--btn-text);
  border-color: transparent;
}

.about-tab.active i {
  color: inherit;
}

/* ========== Sections ========== */
.about-section {
  display: none;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 32px;
  animation: fadeInUp 0.4s var(--ease-out);
}

.about-section.active {
  display: block;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== Section Intro ========== */
.section-intro {
  margin-bottom: 40px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  margin-bottom: 24px;
}

[dir="rtl"] .section-divider {
  margin-left: auto;
  margin-right: 0;
}

.section-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.section-text.muted {
  font-size: 13px;
  font-style: italic;
  color: var(--text-tertiary);
}

.section-text.highlight-text {
  color: var(--primary);
  font-weight: 500;
  border-left: 3px solid var(--primary);
  padding-left: 16px;
  margin-top: 8px;
}

[dir="rtl"] .section-text.highlight-text {
  border-left: none;
  border-right: 3px solid var(--primary);
  padding-left: 0;
  padding-right: 16px;
}

.section-closing {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-secondary);
}

/* ========== Subsection Title ========== */
.subsection-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  margin-top: 8px;
}

/* ========== Feature Cards Grid ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.feature-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all 0.3s var(--ease-out);
  opacity: 0;
  transform: translateY(12px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  border-color: var(--primary);
  background: var(--primary-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.feature-icon i {
  font-size: 18px;
  color: var(--primary);
}

.feature-card h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* ========== Technology Blocks ========== */
.tech-block {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.3s var(--ease-out);
}

.tech-block.visible {
  opacity: 1;
  transform: translateY(0);
}

.tech-block-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.tech-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tech-icon i {
  font-size: 18px;
  color: #fff;
}

.tech-block h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Tech Sub-Cards */
.tech-sub-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 16px 0;
}

.tech-sub-cards.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.tech-sub-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-md);
  padding: 18px 16px;
}

.tech-sub-card h4 {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.tech-sub-card p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* Capabilities List */
.capabilities-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 12px 0;
}

.capabilities-list.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.capability-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.capability-item i {
  color: var(--success, #10b981);
  font-size: 14px;
  flex-shrink: 0;
}

/* ========== Use Cases Grid ========== */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}

.usecase-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all 0.3s var(--ease-out);
  opacity: 0;
  transform: translateY(12px);
  display: flex;
  flex-direction: column;
}

.usecase-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.usecase-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.usecase-card.featured {
  grid-column: span 3;
  background: var(--primary-bg);
  border-color: var(--primary);
}

.usecase-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.usecase-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.usecase-icon i {
  font-size: 16px;
  color: var(--primary);
}

.usecase-card h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.usecase-card > p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.65;
  margin-bottom: 14px;
  flex: 1;
}

/* Stats inside featured card */
.usecase-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 16px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-label {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Tags */
.usecase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-tertiary);
}

.usecase-card.featured .tag {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.1);
}

/* ========== Footer ========== */
.about-footer {
  margin-top: 60px;
  padding: 32px;
  text-align: center;
  border-top: 1px solid var(--border-secondary);
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-text {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}

.footer-text span {
  font-weight: 600;
  color: var(--text-secondary);
}

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .features-grid,
  .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .usecase-card.featured {
    grid-column: span 2;
  }
  .tech-sub-cards.three-col {
    grid-template-columns: repeat(2, 1fr);
  }
  .capabilities-list.two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .about-hero {
    padding: 40px 20px 32px;
  }
  .hero-title {
    font-size: 1.75rem;
  }
  .hero-meta {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .about-tabs {
    gap: 6px;
    padding: 12px 16px 16px;
  }
  .about-tab {
    padding: 8px 14px;
    font-size: 12px;
  }
  .about-tab span {
    display: none;
  }
  .about-tab i {
    font-size: 16px;
  }
  .about-section {
    padding: 0 16px;
  }
  .features-grid,
  .usecases-grid {
    grid-template-columns: 1fr;
  }
  .usecase-card.featured {
    grid-column: span 1;
  }
  .tech-sub-cards,
  .tech-sub-cards.three-col {
    grid-template-columns: 1fr;
  }
  .usecase-stats {
    gap: 20px;
  }
}