:root {
    --amber: #ffb54d;
    --amber-2: #c98a2f;
    --nav-bg: rgba(0,0,0,.6);
}

html, body {
    height: 80%;
    
}

    body.bg-game {
/*        background-size: 100% auto;*/
        background: url('/Image/detail.png') no-repeat top center;
        background-size: cover; /* co giãn ảnh che toàn màn hình */
        background-attachment: fixed; /* ảnh cố định khi scroll */
    }

.bg-wrapper {
    background: #0b0b0b url('/Image/bg.jpg') no-repeat top center;
    background-size: 100% auto; 
    min-height: 100vh;
}
bg-overlay{
    position: absolute; 
    inset: 0;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(ellipse at center, rgba(0,0,0,.25), rgba(0,0,0,.65) 55%, rgba(0,0,0,.85) 100%);
}

.nav-wrap {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(6px);
}

.navbar .navbar-brand {
    letter-spacing: .12em;
}

.navbar .nav-link {
    font-weight: 600;
    letter-spacing: .05em;
    padding: .75rem 1rem;
    color: #eaeaea;
}

    .navbar .nav-link.active, .navbar .nav-link:hover {
        color: var(--amber);
    }

.main-menu .nav-link {
    text-transform: uppercase;
}

.btn-auth {
    padding: .6rem 1.2rem;
    border-radius: .5rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: .04em;
}

.btn-amber {
    color: #1a1a1a;
    background: linear-gradient(180deg, var(--amber), var(--amber-2));
    border: 1px solid rgba(255,255,255,.15);
    box-shadow: inset 0 0 10px rgba(255,255,255,.15), 0 0 30px rgba(255,181,77,.15);
}

    .btn-amber:hover {
        filter: brightness(1.05);
    }

.btn-outline-amber {
    color: var(--amber);
    border: 1px solid var(--amber-2);
    background: rgba(255,181,77,.08);
}

    .btn-outline-amber:hover {
        background: rgba(255,181,77,.18);
        color: #ffd79c;
    }

.content-shell {
    position: relative;
    z-index: 1;
    padding-top: 17rem;
    padding-bottom: 3rem;
}

.card {
    border-radius: 1rem;
    background: rgba(0,0,0,.45);
    border: 1px solid rgba(255,255,255,.08);
    color: #eaeaea;
}

    .card .btn {
        border-radius: .6rem;
    }

.form-control, .form-select {
    background: rgba(255,255,255,.06);
    color: #eaeaea;
    border-color: rgba(255,255,255,.15);
}

    .form-control:focus, .form-select:focus {
        box-shadow: 0 0 0 .2rem rgba(255,181,77,.15);
        border-color: var(--amber);
    }

.img-fluid, .card-img-top {
    border-radius: .75rem;
}
.footer {
    border-top: 1px solid rgba(255,255,255,.1);
    font-size: 0.9rem;
}

.footer img {
        filter: drop-shadow(0 0 3px rgba(0,0,0,.6));
}

/* Panels on home */
.home-top .panel {
    min-height: 50px;
}
.panel {
    background: rgba(0,0,0,.55);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 1rem;
    padding: 0.2rem 0.5rem;
    color: #eee;
}

.panel__title {
    font-weight: 800;
    letter-spacing: .06em;
    color: #ffb54d;
    text-transform: uppercase;
}

.panel__sub {
    color: #d9d9d9;
    opacity: .85;
}

.panel--status .progress {
    background: rgba(255,255,255,.12);
}

.panel--status .progress-bar {
    background: linear-gradient(180deg,#ffb54d,#c98a2f);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
}

    .status-dot.online {
        background: #2ecc71;
        box-shadow: 0 0 8px #2ecc71;
    }

    .status-dot.offline {
        background: #e74c3c;
        box-shadow: 0 0 8px #e74c3c;
    }

.feature-card {
    border-radius: 1rem;
    overflow: hidden;
    background: rgba(0,0,0,.45);
    border: 1px solid rgba(255,255,255,.08);
}

.carousel-caption {
    background: linear-gradient(180deg,rgba(0,0,0,.35), rgba(0,0,0,.75));
    border-radius: .75rem;
    padding: 1rem 1.25rem;
}

.panel--announce .announce-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: .75rem;
    align-items: center;
    padding: .6rem .25rem;
    border-bottom: 1px dashed rgba(255,255,255,.1);
}

    .panel--announce .announce-row:last-child {
        border-bottom: 0;
    }

.panel--announce .tag {
    color: #ffb54d;
    font-weight: 700;
}

.panel--announce .title {
    color: #eaeaea;
    text-decoration: none;
}

    .panel--announce .title:hover {
        color: #ffd79c;
    }

.panel--announce .date {
    color: #bfbfbf;
}

/* Buttons (re-use header styles) */
.btn-amber {
    color: #1a1a1a;
    background: linear-gradient(180deg, #ffb54d, #c98a2f);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: .6rem;
    font-weight: 800;
    text-transform: uppercase;
}

.rank-card {
  border-radius: 1rem;
  background-size: cover;
  background-position: center;
  padding: 1rem;
  color: #fff;
  position: relative;
  overflow: hidden;
  min-height: 700px;
}

    .rank-card::before {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(0,0,0,.45);
    }

    .rank-card > * {
        position: relative;
        z-index: 1;
    }

.rank-title {
    color: #ffb54d;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: .5rem;
    text-shadow: 0 0 6px #000;
}

.rank-card table {
    background: transparent;
    border-radius: .5rem;
}

.rank-card th {
    font-size: .8rem;
    text-transform: uppercase;
    color: #ffb54d;
    background: transparent;
}

.rank-card td {
    font-size: .85rem;
    background: transparent;
}


.text-amber {
    color: var(--amber);
}

.auth-modal .modal-backdrop {
    opacity: .85;
}

.modal-backdrop.show {
    opacity: .85;
}

.auth-panel {
    background: #ffffff url('/Image/pattern.png') repeat; /* tuỳ chọn: bỏ nếu không có pattern */
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 1rem;
    box-shadow: 0 10px 50px rgba(0,0,0,.6), inset 0 -6px 0 rgba(255,181,77,.08);
    color: #eaeaea;
    position: relative;
    overflow: hidden;
    max-width: 500px;
    margin: 1.5rem auto;
}

.auth-close {
    position: absolute;
    top: .75rem;
    right: .75rem;
    filter: drop-shadow(0 0 4px rgba(0,0,0,.6));
}

.auth-header {
    padding-top: 1.5rem;
}

.auth-body {
    padding: 1.25rem 2rem 2rem;
}

.auth-input {
    background: rgba(0,0,0,.35);
    border: 1px solid rgba(255,255,255,.12);
    color: #eee;
    box-shadow: 0 0 0 .2rem transparent;
}

    .auth-input:focus {
        border-color: var(--amber);
        box-shadow: 0 0 0 .2rem rgba(255,181,77,.18);
    }
/* ============ Post Detail ============ */
.post-detail {
    padding: 2rem 0 3rem;
    margin-top: -250px; /*  */
    position: relative;
    z-index: 2;
}
.post-body.md-content {
    background: rgba(0,0,0,.55);

}
.post-frame {
    max-width: 980px;
    position: relative;
}

    /* Hai cột viền vàng hai bên như demo */
    .post-frame::before,
    .post-frame::after {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        width: 6px;
        background: linear-gradient(180deg, rgba(255,181,77,.8), rgba(255,181,77,.15));
        border-radius: 6px;
        filter: drop-shadow(0 0 6px rgba(255,181,77,.35));
    }

    .post-frame::before {
        left: -24px;
    }

    .post-frame::after {
        right: -24px;
    }

/* Header */
.post-kicker {
    font-weight: 800;
    letter-spacing: .06em;
    color: #f0f0f0;
    margin-bottom: .25rem;
    text-transform: uppercase;
}

.post-title {
    font-weight: 900;
    letter-spacing: .02em;
    margin: 0;
    color: #ffd79c;
    text-transform: uppercase;
    text-shadow: 0 2px 0 rgba(0,0,0,.6);
    font-size: clamp(1.5rem, 2.8vw, 2rem);
}

.post-meta {
    color: #cfcfcf;
    opacity: .85;
    margin-top: .3rem;
    font-size: .95rem;
}

.post-rule {
    height: 2px;
    border: 0;
    margin: 1rem auto 1.25rem;
    max-width: 640px;
    background: linear-gradient(90deg, transparent, rgba(255,181,77,.7), transparent);
}

/* Nội dung Markdown */
.md-content {
    background: rgba(0,0,0,.35);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: .75rem;
    padding: 1.25rem 1.2rem;
    color: #eaeaea;
    line-height: 1.7;
}

    .md-content h1, .md-content h2, .md-content h3, .md-content h4 {
        color: #ffcc80;
        font-weight: 800;
        margin-top: 1.2rem;
        text-transform: none;
        letter-spacing: .01em;
    }

    .md-content p {
        margin: .5rem  1rem;
    }

    .md-content a {
        color: #ffb54d;
        text-decoration: underline;
    }

        .md-content a:hover {
            color: #ffd79c;
        }

    .md-content ul {
        padding-left: 1.2rem;
        margin-bottom: 1rem;
    }

    .md-content li {
        margin: .25rem 0;
    }

    /* Ảnh trong bài */
    .md-content img {
        display: block;
        max-width: 100%;
        height: auto;
        border-radius: .5rem;
        margin: .75rem auto 1rem;
        box-shadow: 0 8px 30px rgba(0,0,0,.35);
    }

    /* Bảng/blockquote nếu có */
    .md-content table {
        width: 100%;
        border-collapse: collapse;
        margin: .75rem 0 1rem;
    }

    .md-content th, .md-content td {
        border: 1px solid rgba(255,255,255,.12);
        padding: .5rem .6rem;
        vertical-align: top;
    }

    .md-content blockquote {
        border-left: 4px solid rgba(255,181,77,.6);
        padding: .4rem .9rem;
        margin: .75rem 0;
        color: #f3f3f3;
        background: rgba(255,181,77,.06);
    }

/* Mobile: nới padding cho dễ đọc */
@media (max-width: 576px) {
    .post-frame::before, .post-frame::after {
        display: none;
    }

    .md-content {
        padding: 1rem;
    }
}
/* ----- Post Detail (giữ các rule trước đó nếu bạn đã thêm) ----- */

/* Khối bài viết dùng nền khung */
.post-body.frame-bg {
    position: relative;
    margin: 0 auto 2rem;
    width: 100%;
    max-width: 980px;
    aspect-ratio: 1049 / 768; /* giữ tỉ lệ khung */
    background: url('/Image/post-frame.png') center / no-repeat;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,.35));
}

    /* Vùng thật đặt nội dung markdown bên trong khung */
    .post-body.frame-bg .frame-inner {
        position: absolute;
        /* canh lề khớp với phần giấy vàng bên trong khung */
        left: 1%;
        right: 1%;
        top: 1%;
        bottom: 14%;
        overflow: auto; /* nếu bài dài sẽ có scrollbar trong khung */
    }

    /* Bỏ nền/viền cũ của md-content khi nằm trong khung */
    .post-body.frame-bg .md-content {
        background: transparent;
        border: 0;
        padding: 0;
        color: #f4d58a; /* chữ đậm hơn trên nền giấy */
        line-height: 1.7;
    }

        /* Tinh chỉnh heading/liên kết/ảnh trong nội dung */
        .post-body.frame-bg .md-content h1,
        .post-body.frame-bg .md-content h2,
        .post-body.frame-bg .md-content h3 {
            color: #7a3b00; /* tông nâu vàng */
            margin: .5rem 0 .25rem;
            text-transform: none;
        }

        .post-body.frame-bg .md-content a {
            color: #b25a00;
            text-decoration: underline;
        }

        .post-body.frame-bg .md-content img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: .5rem auto;
            border-radius: .25rem;
            box-shadow: 0 6px 20px rgba(0,0,0,.15);
        }

/* Mobile: nới lề bên trong cho dễ đọc, bỏ aspect-ratio nếu cần */
@media (max-width: 576px) {
    .post-body.frame-bg {
        aspect-ratio: auto;
        background-size: cover;
        padding-top: 36vw; /* tạo phần trên của khung */
        padding-bottom: 36vw; /* phần dưới của khung */
    }

        .post-body.frame-bg .frame-inner {
            position: static;
            margin: 0 10%;
            max-height: none;
            overflow: visible;
        }
}