/* ===== WRAPPER (QUAN TRỌNG NHẤT) ===== */
.tao-wrapper{
    display:flex;
    align-items:flex-start;
    gap:24px;
    max-width:1400px;
    margin:0 auto;
}

/* ===== CONTROLS (BÊN TRÁI) ===== */
.tao-controls{
    width:360px;
    flex-shrink:0;
    background:#fff;
    border-radius:18px;
    padding:20px 18px;
    display:flex;
    flex-direction:column;
    gap:14px;
    /* Đổi shadow sang ánh xanh dương dịu */
    box-shadow:0 12px 30px rgba(59,130,246,0.1);
}

/* LABEL */
.tao-controls label{
    display:flex;
    flex-direction:column;
    gap:6px;
    font-size:13px;
    font-weight:600;
    /* Chữ xanh dương đậm trầm */
    color:#1e40af;
}

/* INPUT + SELECT */
.tao-controls select,
.tao-controls input[type="text"]{
    padding:10px 12px;
    font-size:14px;
    border-radius:12px;
    /* Viền xanh phấn nhạt */
    border:1px solid #bae6fd;
    outline:none;
    transition:.2s;
    color: #1e3a8a;
}

.tao-controls select:focus,
.tao-controls input[type="text"]:focus{
    border-color:#60a5fa;
    /* Glow xanh khi click */
    box-shadow:0 0 0 3px rgba(96,165,250,0.2);
}

/* ===== SWITCH LINE ===== */
.switch-line{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:10px 12px;
    border-radius:14px;
    /* Nền xanh pastel cực nhạt */
    background:#f0f9ff;
    color:#1d4ed8;
    font-size:14px;
}

/* ===== SWITCH ===== */
.switch{
    position:relative;
    width:46px;
    height:24px;
}

.switch input{
    opacity:0;
    width:0;
    height:0;
}

.slider{
    position:absolute;
    inset:0;
    cursor:pointer;
    /* Màu nền nút khi tắt - xanh lơ nhạt */
    background:#bae6fd;
    border-radius:999px;
    transition:.3s;
}

.slider::before{
    content:"";
    position:absolute;
    width:18px;
    height:18px;
    left:3px;
    top:3px;
    background:#fff;
    border-radius:50%;
    transition:.3s;
    box-shadow:0 2px 6px rgba(30,58,138,0.2);
}

/* Khi bật Switch: chuyển sang xanh dương sáng */
.switch input:checked + .slider{
    background:linear-gradient(135deg,#60a5fa,#3b82f6);
}

.switch input:checked + .slider::before{
    transform:translateX(22px);
}

/* Hiệu ứng phát sáng xanh rực rỡ hơn */
.switch.glow input:checked + .slider{
    box-shadow:
        0 0 6px rgba(96,165,250,0.8),
        0 0 14px rgba(186,230,253,0.9);
}

/* ===== BUTTON ===== */
#createBtn,
#saveBtn{
    margin-top:10px;
    padding:12px;
    border:none;
    border-radius:14px;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:.25s;
}

#createBtn{
    /* Nút chính: Gradient Xanh Dương */
    background:linear-gradient(135deg,#60a5fa,#3b82f6);
    color:#fff;
    box-shadow:0 8px 20px rgba(59,130,246,0.3);
}

#createBtn:hover{
    transform:translateY(-1px);
    box-shadow:0 12px 25px rgba(59,130,246,0.45);
}

#saveBtn{
    display:none;
    /* Nút lưu: Xanh nhạt chữ dương đậm */
    background:#e0f2fe;
    color:#1d4ed8;
}

#saveBtn:hover{
    background:#bae6fd;
}

/* ===== PREVIEW (BÊN PHẢI) ===== */
.tao-preview{
    position:relative;
    flex:1;
    min-width:0;
    display:flex;
    justify-content:center;
    align-items:center;
    background:#fff;
    border-radius:20px;
    padding:20px;
    box-shadow:0 12px 30px rgba(59,130,246,0.1);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
}

.tao-preview.show{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
}

/* ===== CANVAS / IMAGE ===== */
#preview,
#previewImage{
    max-width:100%;
    border-radius:16px;
    /* Nền canvas xanh phấn cực nhạt */
    background:#f0f9ff;
    box-shadow:
        inset 0 0 0 1px rgba(59,130,246,0.1),
        0 0 12px rgba(96,165,250,0.3);
}

/* ===== LOADING ===== */
.loading-overlay{
    position:absolute;
    inset:0;
    /* Nền loading mờ xanh đen navy */
    background:rgba(30,58,138,0.8);
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:20px;
    z-index:10;
}

.spinner{
    width:64px;
    height:64px;
    border:6px solid rgba(255,255,255,.2);
    /* Màu xoay: xanh phấn sáng */
    border-top-color:#bae6fd;
    border-radius:50%;
    animation:spin 1s linear infinite;
}

@keyframes spin{
    to{ transform:rotate(360deg); }
}

/* ===== MOBILE ===== */
@media (max-width:1024px){
    .tao-wrapper{
        flex-direction:column;
    }

    .tao-controls{
        width:100%;
    }
}