@import url('https://fonts.googleapis.com/css2?family=Bungee&display=swap');

:root {
  /* Bảng màu Retro 20 màu */
  --color-1: #E27D60;  --color-2: #85DCBA;  --color-3: #E8A87C;  --color-4: #C38D9E;  --color-5: #41B3A3;
  --color-6: #E9C46A;  --color-7: #F4A261;  --color-8: #E76F51;  --color-9: #D4A373;  --color-10: #FAEDCB;
  --color-11: #A8DADC; --color-12: #457B9D; --color-13: #1D3557; --color-14: #2A9D8F; --color-15: #264653;
  --color-16: #C9E4DE; --color-17: #A3B18A; --color-18: #588157; --color-19: #A5A58D; --color-20: #F4F1DE;
}

.hidden { display: none !important; }

/* WRAPPER NỀN TRẮNG TÍNH THẨM MỸ CAO */
.eqr-neo-wrapper {
    font-family: system-ui, -apple-system, sans-serif;
    max-width: 850px; margin: 30px auto; background: #fff;
    border: 3px solid #000; border-radius: 16px; box-shadow: 10px 10px 0px #000;
    padding: 25px; box-sizing: border-box; color: #000;
}
.eqr-neo-wrapper * { box-sizing: border-box; }

.eqr-header {
    background: var(--color-16); padding: 20px; border-radius: 12px;
    border: 3px solid #000; box-shadow: 4px 4px 0px #000; margin-bottom: 25px; text-align: center;
}
.eqr-header h2 { margin: 0 0 10px 0; font-size: 1.8rem; font-weight: 900; text-transform: uppercase; color: #111;}
.eqr-header p { margin: 0; font-weight: 700; font-size: 1rem; color: #333; }

/* BỐ CỤC CARD & MÀU RETRO */
.eqr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.eqr-card { border: 3px solid #000; padding: 20px; border-radius: 12px; box-shadow: 4px 4px 0px #000;}
.card-title { margin: 0 0 20px 0; font-size: 1.25rem; font-weight: 900; text-transform: uppercase; border-bottom: 2px dashed #000; padding-bottom: 10px;}

.bg-powder { background: var(--color-11); }
.bg-mustard { background: var(--color-6); }
.bg-eggshell { background: var(--color-20); }

/* MASTER RULE: NHÃN ĐEN, ĐẬM, IN HOA */
.eqr-neo-wrapper label { display: block; color: #000 !important; font-weight: 900; font-size: 1.05rem; margin-bottom: 8px; text-transform: uppercase;}

/* INPUT STYLES */
.eqr-group { margin-bottom: 15px; }
.eqr-group:last-child { margin-bottom: 0; }
.eqr-input-wrap { position: relative; }

.eqr-input {
    width: 100%; padding: 15px 70px 15px 15px; font-size: 1.3rem; font-weight: 900; font-family: 'Courier New', monospace;
    border: 3px dashed #000; border-radius: 8px; outline: none; background: #fff; transition: 0.1s;
}
.eqr-input:focus { border-style: solid; border-color: var(--color-15); box-shadow: 4px 4px 0px var(--color-15); transform: translateY(-2px); }

.eqr-suffix {
    position: absolute; right: 15px; top: 50%; transform: translateY(-50%);
    font-weight: 900; font-size: 1.1rem; color: #555; pointer-events: none;
}

.eqr-live-text { color: var(--color-13); font-weight: 800; font-size: 0.95rem; margin-top: 6px; min-height: 18px; font-style: italic;}
.hint-text { font-weight: 700; font-size: 0.85rem; color: #444; margin-top: 10px; display: block;}

/* NÚT BẤM CHÍNH & LỖI */
.eqr-btn-calc {
    width: 100%; padding: 18px; font-size: 1.4rem; font-weight: 900; text-transform: uppercase; margin-top: 25px;
    background: var(--color-15); color: #fff; border: 3px solid #000; border-radius: 12px;
    box-shadow: 6px 6px 0px #000; cursor: pointer; transition: 0.1s; letter-spacing: 1px;
}
.eqr-btn-calc:active { transform: translate(4px, 4px); box-shadow: 2px 2px 0px #000; }

.eqr-error-box {
    margin-top: 20px; background: var(--color-8); color: #fff; border: 3px solid #000;
    padding: 15px; border-radius: 8px; font-weight: 900; font-size: 1.1rem;
    box-shadow: 4px 4px 0px #000; text-align: center; animation: shake 0.4s ease-in-out;
}
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }

/* KẾT QUẢ */
.eqr-result-section { margin-top: 30px; border-top: 4px dashed #000; padding-top: 30px; animation: fadeUp 0.4s ease-out forwards;}

.res-grid-2 { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; margin-bottom: 25px;}

.res-eqr-box, .res-debt-box { text-align: center; border: 4px solid #000; border-radius: 12px; padding: 25px 20px; box-shadow: 6px 6px 0px #000; transition: 0.3s; display: flex; flex-direction: column; justify-content: center;}
.res-label { font-size: 1.2rem; font-weight: 900; text-transform: uppercase; margin-bottom: 10px;}
.res-value { word-break: break-word; margin-bottom: 10px;}
.res-value span:first-child { font-family: 'Bungee', cursive; font-size: 4rem; line-height: 1; text-shadow: 3px 3px 0px rgba(0,0,0,0.15);}
.res-unit { font-size: 1.8rem; font-weight: 900; margin-left: 5px;}
.res-desc { margin: 0; font-size: 1rem; font-weight: 700; color: #fff;}

.text-brick { color: var(--color-8) !important; }
.text-dark { color: #333 !important; }

.res-message-box { padding: 25px; border: 3px solid #000; border-radius: 12px; box-shadow: 4px 4px 0px #000; transition: 0.3s;}
.res-message-box h4 { margin: 0 0 10px 0; font-size: 1.3rem; font-weight: 900; text-transform: uppercase;}
.res-message-box p { margin: 0; font-size: 1.1rem; font-weight: 700; line-height: 1.6; color: #222;}

/* Classes Trạng Thái Kết Quả (Dùng bảng màu Retro) */
.status-danger { background-color: var(--color-8); color: #fff !important; }
.status-danger .res-label, .status-danger .res-value span { color: #fff !important; }
.status-danger p, .status-danger h4 { color: #fff !important; }

.status-warning { background-color: var(--color-18); color: #fff !important; }
.status-warning .res-label, .status-warning .res-value span { color: #fff !important; }
.status-warning p, .status-warning h4 { color: #fff !important; }

.status-info { background-color: var(--color-12); color: #fff !important; }
.status-info .res-label, .status-info .res-value span { color: #fff !important; }
.status-info p, .status-info h4 { color: #fff !important; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 768px) {
    .eqr-grid { grid-template-columns: 1fr; }
    .res-grid-2 { grid-template-columns: 1fr; }
    .res-value span:first-child { font-size: 3.5rem; }
}