/* ──────────────────────────────────────────────────────────
   ASTRO — تجميع الكمبيوتر
   ──────────────────────────────────────────────────────────
   نافذة اختيار نوع التجميع، وصفحة التجميع خطوة بخطوة، وملخص التجميعة.
────────────────────────────────────────────────────────── */

    /* ══ Build Modal ══ */
    .build-modal-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(5,5,15,0.92);
      backdrop-filter: blur(12px);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .build-modal-overlay.open { display: flex; }
    .build-modal-box {
      background: rgba(14,14,30,0.97);
      border: 1px solid rgba(138,77,255,0.3);
      border-radius: 12px;
      padding: 36px;
      width: 100%;
      max-width: 480px;
      text-align: center;
    }
    .build-modal-title {
      font-family: 'Orbitron', sans-serif;
      font-size: 1rem;
      font-weight: 900;
      letter-spacing: 2px;
      background: linear-gradient(135deg, #fff, #C084FC);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 10px;
    }
    .build-modal-sub {
      font-size: 0.85rem;
      color: rgba(242,242,247,0.5);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .build-modal-options {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }
    .build-modal-opt {
      background: rgba(20,10,40,0.7);
      border: 2px solid rgba(138,77,255,0.2);
      border-radius: 10px;
      padding: 28px 16px;
      cursor: pointer;
      transition: border-color 0.25s, transform 0.2s, box-shadow 0.2s;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
    }
    .build-modal-opt:hover {
      border-color: rgba(138,77,255,0.6);
      transform: translateY(-3px);
      box-shadow: 0 12px 30px rgba(80,20,160,0.3);
    }
    .build-modal-opt-icon { font-size: 2.5rem; }
    .build-modal-opt-label {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--pl);
    }
    .build-modal-opt-desc {
      font-size: 0.75rem;
      color: rgba(242,242,247,0.5);
      line-height: 1.5;
      text-align: center;
    }
    .build-modal-close {
      background: none;
      border: none;
      color: rgba(242,242,247,0.4);
      font-size: 0.8rem;
      cursor: pointer;
      font-family: 'Orbitron', sans-serif;
      letter-spacing: 1px;
    }

    /* ══ PC Builder Page ══ */
    .builder-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: var(--d1);
      z-index: 1001;
      flex-direction: column;
      overflow-y: auto;
    }
    .builder-overlay.open { display: flex; }

    .builder-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 24px;
      background: rgba(14,14,30,0.95);
      border-bottom: 1px solid rgba(138,77,255,0.2);
      position: sticky;
      top: 0;
      z-index: 10;
      flex-shrink: 0;
    }
    .builder-title {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.9rem;
      font-weight: 700;
      letter-spacing: 2px;
      background: linear-gradient(135deg, #fff, #C084FC);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .builder-back {
      background: rgba(138,77,255,0.12);
      border: 1px solid rgba(138,77,255,0.25);
      border-radius: 6px;
      color: var(--pl);
      font-family: 'Orbitron', sans-serif;
      font-size: 0.65rem;
      letter-spacing: 1px;
      padding: 7px 14px;
      cursor: pointer;
    }

    .builder-content {
      max-width: 900px;
      width: 100%;
      margin: 0 auto;
      padding: 32px 24px;
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 32px;
      align-items: flex-start;
    }

    /* خطوات التجميع */
    .builder-steps { display: flex; flex-direction: column; gap: 20px; }

    .builder-step {
      background: rgba(20,10,40,0.6);
      border: 1px solid rgba(138,77,255,0.15);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .builder-step.active { border-color: rgba(138,77,255,0.5); }
    .builder-step.completed { border-color: rgba(107,255,184,0.3); }

    .builder-step-header {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 16px 20px;
      cursor: pointer;
    }
    .builder-step-num {
      width: 32px; height: 32px;
      border-radius: 50%;
      background: rgba(138,77,255,0.15);
      border: 1px solid rgba(138,77,255,0.3);
      display: flex; align-items: center; justify-content: center;
      font-family: 'Orbitron', sans-serif;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--pl);
      flex-shrink: 0;
    }
    .builder-step.completed .builder-step-num {
      background: rgba(107,255,184,0.15);
      border-color: rgba(107,255,184,0.4);
      color: #6bffb8;
    }
    .builder-step-info { flex: 1; }
    .builder-step-name {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.78rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 3px;
    }
    .builder-step-selected {
      font-size: 0.75rem;
      color: rgba(242,242,247,0.5);
    }
    .builder-step.completed .builder-step-selected { color: #6bffb8; }
    .builder-step-change {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.6rem;
      letter-spacing: 1px;
      color: var(--pl);
      background: none;
      border: none;
      cursor: pointer;
      flex-shrink: 0;
    }

    .builder-step-products {
      display: none;
      padding: 0 16px 16px;
      display: grid;
      grid-template-columns: 1fr;
      gap: 8px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }
    .builder-step.active .builder-step-products {
      max-height: 400px;
      overflow-y: auto;
    }

    .builder-product-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px;
      background: rgba(10,5,25,0.6);
      border: 1px solid rgba(138,77,255,0.1);
      border-radius: 8px;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
    }
    .builder-product-item:hover { border-color: rgba(138,77,255,0.4); background: rgba(138,77,255,0.08); }
    .builder-product-item.selected { border-color: var(--pm); background: rgba(138,77,255,0.12); }

    .builder-product-img {
      width: 48px; height: 48px;
      object-fit: cover;
      border-radius: 6px;
      flex-shrink: 0;
      background: rgba(138,77,255,0.1);
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem;
    }
    .builder-product-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; }
    .builder-product-info { flex: 1; }
    .builder-product-name { font-size: 0.82rem; color: #fff; margin-bottom: 3px; }
    .builder-product-price { font-family: 'Orbitron', sans-serif; font-size: 0.75rem; color: var(--pl); font-weight: 700; }
    .builder-select-check { color: #6bffb8; font-size: 1.1rem; flex-shrink: 0; }

    /* ملخص التجميعة */
    .builder-summary {
      background: rgba(14,14,30,0.9);
      border: 1px solid rgba(138,77,255,0.2);
      border-radius: 12px;
      padding: 24px;
      position: sticky;
      top: 80px;
    }
    .builder-summary-title {
      font-family: 'Orbitron', sans-serif;
      font-size: 0.72rem;
      letter-spacing: 3px;
      color: var(--pm);
      margin-bottom: 18px;
    }
    .builder-summary-item {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 8px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(138,77,255,0.08);
    }
    .builder-summary-label { font-size: 0.72rem; color: rgba(242,242,247,0.45); flex-shrink: 0; }
    .builder-summary-val { font-size: 0.75rem; color: #fff; text-align: left; flex: 1; }
    .builder-summary-empty { font-size: 0.72rem; color: rgba(242,242,247,0.25); font-style: italic; }
    .builder-total {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid rgba(138,77,255,0.2);
    }
    .builder-total-label { font-family: 'Orbitron', sans-serif; font-size: 0.68rem; letter-spacing: 2px; color: rgba(242,242,247,0.6); }
    .builder-total-price { font-family: 'Orbitron', sans-serif; font-size: 1.1rem; font-weight: 700; color: var(--pl); filter: drop-shadow(0 0 8px rgba(192,132,252,0.4)); }
    .builder-order-btn {
      width: 100%;
      margin-top: 16px;
      padding: 14px;
      background: linear-gradient(135deg, var(--pd), var(--pm));
      border: none;
      border-radius: 8px;
      color: #fff;
      font-family: 'Orbitron', sans-serif;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 2px;
      cursor: pointer;
      box-shadow: 0 0 20px rgba(138,77,255,0.4);
      transition: box-shadow 0.2s, transform 0.2s;
    }
    .builder-order-btn:hover { box-shadow: 0 0 35px rgba(138,77,255,0.7); transform: translateY(-2px); }
    .builder-order-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

    @media(max-width: 768px) {
      .builder-content { grid-template-columns: 1fr; }
      .builder-summary { position: static; margin-top: 20px; }
    }