/* Biến nội bộ */
.age-neo-wrapper {
    --bg-white: #ffffff;
    --border-ink: 3px solid #111111;
    --shadow-solid: 6px 6px 0px #111111;
    
    /* Bảng màu Neon */
    --clr-main: #f15bb5;     /* Hồng Neon */
    --clr-accent: #9b5de5;   /* Tím */
    --clr-stats: #00bbf9;    /* Xanh dương */
    --clr-fun: #fee440;      /* Vàng */
    --clr-bg: #f8f9fa;

    max-width: 800px;
    margin: 0 auto;
    font-family: system-ui, -apple-system, sans-serif;
    color: #111111;
    background: var(--clr-bg);
    padding: 25px;
    border: var(--border-ink);
    border-radius: 16px;
    box-shadow: 10px 10px 0px #111;
}

.age-neo-wrapper * { box-sizing: border-box; }

.age-neo-header { background: var(--clr-main); color: #fff; border: var(--border-ink); box-shadow: var(--shadow-solid); padding: 20px; border-radius: 12px; text-align: center; margin-bottom: 25px; }
.age-neo-header h2 { margin: 0 0 10px 0; font-size: 1.8rem; font-weight: 900; text-transform: uppercase; text-shadow: 2px 2px 0px #111;}
.age-neo-header p { margin: 0; font-weight: 800; font-size: 0.95rem; }

.age-neo-form { display: flex; flex-direction: column; gap: 20px; }
.age-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 25px; }
.age-group { display: flex; flex-direction: column; gap: 8px; }
.age-group label { font-weight: 900; font-size: 1.05rem; color: #111; text-transform: uppercase;}

/* Input Date */
.neo-input-date { width: 100%; padding: 15px 20px; font-size: 1.3rem; font-weight: 900; font-family: monospace, system-ui; color: #111; border: var(--border-ink); border-radius: 12px; background: #fff; box-shadow: 4px 4px 0px #111; outline: none; cursor: pointer; transition: all 0.1s;}
.neo-input-date:focus { background: #e0fbfc; transform: translate(-2px, -2px); box-shadow: 6px 6px 0px #111;}

/* Nút Submit */
.age-neo-btn { padding: 18px; font-size: 1.2rem; font-weight: 900; background: #111; color: #fff; border: var(--border-ink); border-radius: 12px; box-shadow: 5px 5px 0px var(--clr-accent); cursor: pointer; text-transform: uppercase; transition: all 0.1s; margin-top: 5px; letter-spacing: 1px;}
.age-neo-btn:active { box-shadow: 2px 2px 0px var(--clr-accent); transform: translate(3px, 3px); }

/* KẾT QUẢ */
.age-neo-result { margin-top: 30px; padding-top: 25px; border-top: 4px dashed #111; display: flex; flex-direction: column; gap: 20px;}
.age-neo-result.active { display: flex !important; animation: popResult 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards; }

/* Box Tuổi Chính */
.age-main-box { background: var(--clr-accent); color: #fff; border: var(--border-ink); border-radius: 12px; padding: 25px 15px; text-align: center; box-shadow: var(--shadow-solid);}
.age-main-box h4 { margin: 0 0 10px 0; font-size: 1.2rem; font-weight: 900; text-transform: uppercase;}
.age-main-box .val-text { font-size: 4.5rem; font-weight: 900; line-height: 1; margin-bottom: 10px; text-shadow: 3px 3px 0px #111;}
.age-main-box .val-text small { font-size: 1.5rem; margin-left: 5px;}
.exact-age { margin: 0; font-weight: 800; font-size: 1.2rem; background: #fff; color: #111; display: inline-block; padding: 8px 20px; border-radius: 20px; border: 2px solid #111; box-shadow: 2px 2px 0px #111;}

/* Lưới chi tiết */
.age-result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.age-card { border: var(--border-ink); box-shadow: 4px 4px 0px #111; border-radius: 12px; padding: 20px; display: flex; flex-direction: column; justify-content: center;}

/* Thống kê */
.card-stats { background: var(--clr-stats); color: #111; }
.card-stats h4 { margin: 0 0 15px 0; font-size: 1.1rem; font-weight: 900; text-transform: uppercase; border-bottom: 2px dashed #111; padding-bottom: 10px;}
.stats-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px;}
.stats-list li { background: #fff; padding: 10px 15px; border: 2px solid #111; border-radius: 8px; font-weight: 800; display: flex; justify-content: space-between; font-size: 1.05rem;}
.stats-list strong { font-family: monospace, system-ui; font-size: 1.2rem; color: var(--clr-main);}

/* Fun facts (Hoàng đạo & Sinh nhật) */
.card-fun { background: var(--clr-fun); color: #111; display: flex; flex-direction: column; gap: 15px; }
.fun-box { background: #fff; border: 2px solid #111; border-radius: 8px; padding: 15px; text-align: center;}
.fun-box h4 { margin: 0 0 10px 0; font-weight: 900; font-size: 0.95rem; text-transform: uppercase; color: #555;}
.zodiac-val { font-size: 1.6rem; font-weight: 900; color: var(--clr-accent);}
.bday-val { font-size: 1.5rem; font-weight: 900; color: var(--clr-main);}
.bday-box small { display: block; margin-top: 5px; font-weight: 800; font-size: 0.95rem;}

@keyframes popResult { 0% { opacity: 0; transform: translateY(20px); } 100% { opacity: 1; transform: translateY(0); } }

@media (max-width: 650px) {
    .age-form-grid { grid-template-columns: 1fr; gap: 15px; }
    .age-result-grid { grid-template-columns: 1fr; }
    .age-main-box .val-text { font-size: 3.5rem; }
}