/* --- SPA PAGE CONTAINER LÀM GIAO DIỆN MƯỢT MÀ --- */
/* Cấu hình khung chứa cho TẤT CẢ các thẻ nội dung được đổ vào */
.app-page { display: block; animation: fadeIn 0.4s ease; width: 100%; height: 100%;}
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* TRANG TRỐNG / ĐANG CẬP NHẬT */
.placeholder-content { text-align: center; padding: 60px 20px; background: rgba(255,255,255,0.02); border-radius: 24px; border: 1px dashed rgba(255,255,255,0.1); box-shadow: 0 0 30px rgba(0,0,0,0.3); }
.placeholder-content h2 { color: var(--accent-blue); font-size: 28px; margin-bottom: 15px; text-transform: uppercase; letter-spacing: 1px;}
.placeholder-content p { color: var(--text-secondary); font-size: 16px; line-height: 1.6; max-width: 500px; margin: 0 auto;}

/* CÁC COMPONENTS SỬ DỤNG LẠI (TABS, LƯỚI GRID, CARDS...) */
.tabs { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 10px; margin-bottom: 30px; scrollbar-width: none; justify-content: center; }
.tabs::-webkit-scrollbar { display: none; }
@media (max-width: 768px) { .tabs { justify-content: flex-start; padding-left: 24px; padding-right: 24px; } }
.tab-btn { padding: 10px 20px; border-radius: 20px; border: 1px solid rgba(255,255,255,0.1); background: rgba(255, 255, 255, 0.05); color: var(--text-secondary); font-size: 14px; font-weight: 600; white-space: nowrap; cursor: pointer; backdrop-filter: blur(10px); transition: all 0.3s; }
.tab-btn.active { background: #fff; color: #000; border-color: #fff; box-shadow: 0 4px 15px rgba(255,255,255,0.2); }

.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; max-width: 1200px; margin: 0 auto;}
.service-card { background: rgba(40, 40, 45, 0.4); border: 1px solid rgba(255, 255, 255, 0.05); border-radius: 24px; padding: 24px; display: flex; flex-direction: column; transition: transform 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; backdrop-filter: blur(10px); }
.service-card:hover { transform: translateY(-5px); border-color: rgba(255, 255, 255, 0.2); box-shadow: 0 15px 30px rgba(0,0,0,0.6); background: rgba(50, 50, 55, 0.6); }
.service-icon { font-size: 32px; margin-bottom: 16px; }
.service-name { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: #fff; line-height: 1.4; }
.service-price { font-size: 20px; font-weight: 800; background: linear-gradient(90deg, #fff, var(--accent-blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 24px; }
.order-btn { margin-top: auto; padding: 12px; border-radius: 12px; border: none; background: rgba(255, 255, 255, 0.1); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; display: flex; justify-content: center; align-items: center; gap: 8px; }
.service-card:hover .order-btn { background: var(--accent-blue); box-shadow: 0 0 20px rgba(10, 132, 255, 0.4); }
.no-results { grid-column: 1 / -1; text-align: center; padding: 40px; color: var(--text-secondary); font-size: 16px; }
/* iOS TOAST NOTIFICATION */
.ios-toast {
    position: fixed; top: -100px; left: 50%; transform: translateX(-50%);
    width: 90%; max-width: 350px; background: rgba(30, 30, 35, 0.9);
    backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.15);
    border-radius: 20px; padding: 15px 20px; display: flex; align-items: center; gap: 15px;
    z-index: 11000; transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.ios-toast.active { top: 30px; }
.toast-icon { font-size: 24px; }
.toast-title { font-weight: 800; color: #fff; font-size: 15px; }
.toast-msg { color: var(--text-secondary); font-size: 13px; margin-top: 2px; }