/* --- RESET & LAYOUT --- */
#viva-tlb-wrapper {
    max-width: 900px;
    margin: 20px auto;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    overflow: hidden;
    border: 1px solid #e0e0e0;
}

/* --- PHẦN ĐIỀU KHIỂN --- */
#viva-tlb-wrapper .viva-tlb-header {
    background: #2c3e50;
    color: #fff;
    padding: 20px;
    text-align: center;
}

#viva-tlb-wrapper .viva-tlb-header h3 {
    margin: 0 0 15px 0;
    font-size: 18px;
    color: #fff;
    text-transform: uppercase;
}

#viva-tlb-wrapper .viva-input-wrapper {
    position: relative;
    max-width: 200px;
    margin: 0 auto;
}

#viva-tlb-wrapper .viva-tlb-input {
    width: 100%;
    padding: 10px;
    font-size: 24px;
    font-weight: 800;
    text-align: center;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    outline: none;
}

/* --- CANVAS THƯỚC --- */
#viva-tlb-wrapper .viva-tlb-ruler-area {
    position: relative;
    height: 120px;
    background-color: #fff8e1; /* Màu giấy cũ */
    border-bottom: 1px solid #ddd;
    cursor: grab;
    overflow: hidden;
    touch-action: none;
}
#viva-tlb-wrapper .viva-tlb-ruler-area:active { cursor: grabbing; }

#viva-tlb-wrapper canvas { display: block; width: 100%; height: 100%; }

#viva-tlb-wrapper .viva-cursor-line {
    position: absolute;
    left: 50%; top: 0; bottom: 0;
    width: 2px; background-color: #d32f2f;
    z-index: 10; transform: translateX(-50%); pointer-events: none;
}

/* --- KẾT QUẢ (RESULTS) - QUAN TRỌNG --- */
#viva-tlb-wrapper .viva-tlb-results {
    padding: 20px;
    background: #f4f6f8;
}

#viva-tlb-wrapper .viva-result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

/* CARD */
#viva-tlb-wrapper .viva-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    border: 1px solid #ddd;
    transition: all 0.2s;
}

/* Header màu sắc */
#viva-tlb-wrapper .card-header { padding: 10px; text-align: center; color: #fff; }
#viva-tlb-wrapper .card-header h3 { margin: 0; font-size: 14px; font-weight: 700; color: white !important; }
#viva-tlb-wrapper .card-header small { display: block; font-size: 11px; opacity: 0.9; margin-top: 2px; font-weight: normal; color: white !important;}

#viva-tlb-wrapper .viva-card.ruler-522 .card-header { background: #d32f2f; } /* Đỏ */
#viva-tlb-wrapper .viva-card.ruler-429 .card-header { background: #e65100; } /* Cam */
#viva-tlb-wrapper .viva-card.ruler-388 .card-header { background: #4a148c; } /* Tím */

/* Body Card */
#viva-tlb-wrapper .card-body {
    padding: 20px 10px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* --- CẤU HÌNH MÀU SẮC ĐỘNG (QUAN TRỌNG NHẤT) --- */

/* 1. TRƯỜNG HỢP TỐT (GOOD) */
#viva-tlb-wrapper .viva-card.is-good {
    background-color: #fff5f5 !important; /* Nền hồng nhạt */
    border-bottom: 4px solid #d32f2f !important;
}

/* Chữ Cung Lớn TỐT (Đỏ) */
#viva-tlb-wrapper .viva-card.is-good .big-segment-name {
    color: #d32f2f !important; 
    font-size: 26px;
    font-weight: 900;
    text-transform: uppercase;
    margin: 5px 0;
    display: block;
}

/* Chữ Cung Nhỏ TỐT (Đỏ) */
#viva-tlb-wrapper .viva-card.is-good .sub-segment-name {
    color: #d32f2f !important;
    font-size: 16px;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

/* Badge TỐT (Nền Đỏ) */
#viva-tlb-wrapper .viva-card.is-good .status-badge {
    background: #d32f2f !important;
    color: #fff !important;
    padding: 4px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    display: inline-block;
}

/* 2. TRƯỜNG HỢP XẤU (BAD) */
#viva-tlb-wrapper .viva-card.is-bad {
    background-color: #f0f0f0 !important; /* Nền xám */
    border-bottom: 4px solid #333 !important;
}

/* Chữ Cung Lớn XẤU (Đen) */
#viva-tlb-wrapper .viva-card.is-bad .big-segment-name {
    color: #000 !important; 
    font-size: 26px;
    font-weight: 900;
    text-transform: uppercase;
    margin: 5px 0;
    display: block;
}

/* Chữ Cung Nhỏ XẤU (Đen) */
#viva-tlb-wrapper .viva-card.is-bad .sub-segment-name {
    color: #333 !important;
    font-size: 16px;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

/* Badge XẤU (Nền Đen) */
#viva-tlb-wrapper .viva-card.is-bad .status-badge {
    background: #333 !important;
    color: #fff !important;
    padding: 4px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    display: inline-block;
}

/* Footer Card */
#viva-tlb-wrapper .card-footer {
    padding: 10px;
    background: #fff;
    border-top: 1px dashed #ddd;
    font-size: 13px;
    color: #666;
    font-style: italic;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* Mobile */
@media (max-width: 768px) {
    #viva-tlb-wrapper .viva-result-grid { grid-template-columns: 1fr; }
    #viva-tlb-wrapper .viva-card { flex-direction: row; flex-wrap: wrap; align-items: center; }
    #viva-tlb-wrapper .card-header { width: 100%; }
    #viva-tlb-wrapper .card-body { width: 65%; text-align: left; align-items: flex-start; padding-left: 15px; }
    #viva-tlb-wrapper .status-badge { position: absolute; right: 15px; top: 50%; transform: translateY(10px); }
    #viva-tlb-wrapper .viva-card { position: relative; }
    #viva-tlb-wrapper .card-footer { width: 100%; text-align: left; padding: 10px 15px; justify-content: flex-start; min-height: auto;}
}