/* ===========================================================
   ABOUT AIO — STANDARD SECTION (PRO EDITION)
   Elegant | Subtle | Professional | Responsive
   =========================================================== */

/* SECTION WRAPPER */
.about-aio-standard {
    position: relative;
    padding: clamp(4rem, 6vw, 7rem) 0;
    background:
      radial-gradient(circle at top left,
        rgba(37, 99, 235, 0.04),
        transparent 40%),
      radial-gradient(circle at bottom right,
        rgba(16, 185, 129, 0.04),
        transparent 45%);
    overflow: hidden;
  }
  
  .about-aio-standard__inner {
    position: relative;
    z-index: 2;
  }
  
  /* HEADER */
  .about-aio-standard__header {
    text-align: center;
    margin-bottom: clamp(2rem, 3vw, 3.5rem);
  }
  
  .about-aio-standard__title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--clr-text);
    line-height: 1.2;
  }
  
  /* GRID */
  .about-aio-standard__grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  /* RESPONSIVE LAYOUT */
  @media (min-width: 680px) {
    .about-aio-standard__grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }
  
  @media (min-width: 1100px) {
    .about-aio-standard__grid {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }
  }
  
  /* CARD */
  .about-aio-standard__card {
    position: relative;
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.3rem 1.6rem;
    box-shadow: var(--shadow-sm);
    transition:
      transform 0.35s ease,
      box-shadow 0.35s ease,
      border-color 0.35s ease;
    opacity: 0;
    transform: translateY(20px);
    will-change: transform;
  }
  
  /* subtle accent */
  .about-aio-standard__card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(
      90deg,
      var(--clr-primary),
      var(--clr-secondary)
    );
    opacity: 0.85;
    border-top-left-radius: inherit;
    border-top-right-radius: inherit;
  }
  
  /* hover */
  .about-aio-standard__card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.35);
  }
  
  /* heading */
  .about-aio-standard__card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.65rem;
    color: var(--clr-text);
    line-height: 1.3;
  }
  
  /* copy */
  .about-aio-standard__card p {
    font-size: 0.98rem;
    color: color-mix(in srgb, var(--clr-text) 88%, #000 12%);
    line-height: 1.65;
  }
  
  /* emphasis */
  .about-aio-standard__card strong {
    color: var(--clr-primary);
    font-weight: 600;
  }
  
  /* ACTIVE REVEAL */
  .about-aio-standard__card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* STAGGER */
  .about-aio-standard__card:nth-child(1) { transition-delay: .05s; }
  .about-aio-standard__card:nth-child(2) { transition-delay: .12s; }
  .about-aio-standard__card:nth-child(3) { transition-delay: .19s; }
  .about-aio-standard__card:nth-child(4) { transition-delay: .26s; }
  
  /* ===========================================================
     DARK MODE
     =========================================================== */
  
  :root[data-theme="dark"] .about-aio-standard {
    background:
      radial-gradient(circle at top left,
        rgba(37, 99, 235, 0.12),
        transparent 42%),
      radial-gradient(circle at bottom right,
        rgba(16, 185, 129, 0.1),
        transparent 48%);
  }
  
  :root[data-theme="dark"] .about-aio-standard__card {
    background: rgba(15, 23, 42, 0.85);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 24px rgba(0,0,0,.25);
  }
  
  :root[data-theme="dark"] .about-aio-standard__card p {
    color: rgba(226, 232, 240, 0.88);
  }
  
  /* ===========================================================
     ACCESSIBILITY + PERFORMANCE
     =========================================================== */
  
  @media (prefers-reduced-motion: reduce) {
    .about-aio-standard__card {
      transition: none;
      transform: none;
      opacity: 1;
    }
  }