/* প্রজেক্ট কালার ভেরিয়েবল ও গ্লোবাল সেটিংস */
:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #161e2e;
    --bg-tertiary: #1e293b;
    --accent-color: #facc15; /* মেলবেট গোল্ডেন/ইয়েলো */
    --accent-hover: #eab308;
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --danger-color: #f43f5e;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    overflow-x: hidden;
}

/* --- হেডার সেকশন --- */
header {
    background-color: var(--bg-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 35px;
    border-bottom: 2px solid var(--accent-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 26px;
    font-weight: 800;
    color: var(--accent-color);
    letter-spacing: 1.5px;
    text-shadow: 0 0 10px rgba(250, 204, 21, 0.3);
}

.logo span {
    color: var(--text-main);
}

.auth-buttons button {
    padding: 9px 22px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--text-muted) !important;
    margin-right: 10px;
}

.btn-login:hover {
    border-color: var(--accent-color) !important;
    color: var(--accent-color);
}

.btn-reg {
    background-color: var(--accent-color);
    color: var(--bg-primary);
    border: none;
    box-shadow: 0 0 15px rgba(250, 204, 21, 0.4);
}

.btn-reg:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* --- নেভিগেশন বার --- */
nav {
    background-color: var(--bg-tertiary);
    display: flex;
    gap: 25px;
    padding: 12px 35px;
    overflow-x: auto;
    scrollbar-width: none; /* ফায়ারফক্সে স্ক্রলবার হাইড করতে */
}

nav::-webkit-scrollbar {
    display: none; /* ক্রোম/সাফারিতে স্ক্রলবার হাইড করতে */
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    padding: 5px 10px;
    border-radius: 4px;
}

nav a.active, nav a:hover {
    color: var(--accent-color);
    background-color: rgba(250, 204, 21, 0.08);
}

/* --- মেইন কন্টেন্ট লেআউট (Grid) --- */
.main-container {
    display: grid;
    grid-template-columns: 260px 1fr 310px;
    gap: 20px;
    padding: 25px;
    max-width: 1500px;
    margin: 0 auto;
    min-height: 80vh;
}

/* --- সাইডবার (বাম পাশ) --- */
.sidebar {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 18px;
    border: 1px solid var(--border-color);
    height: fit-content;
}

.sidebar h3 {
    font-size: 15px;
    margin-bottom: 12px;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sports-list {
    list-style: none;
}

.sports-list li {
    padding: 11px 12px;
    font-size: 13.5px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 6px;
    transition: var(--transition);
    margin-bottom: 4px;
}

.sports-list li:hover {
    color: var(--text-main);
    background-color: var(--bg-tertiary);
    transform: translateX(4px);
}

/* --- সেন্টার ফিড ও ম্যাচ কার্ড --- */
.center-feed {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 16px;
    color: var(--accent-color);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.match-card {
    background-color: var(--bg-primary);
    border-radius: 8px;
    padding: 15px 18px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.match-card:hover {
    border-color: rgba(250, 204, 21, 0.4);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.match-info {
    font-size: 13px;
}

.match-teams {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
    font-size: 14.5px;
}

.match-time {
    color: var(--danger-color);
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* --- অডস বাটন স্টাইল --- */
.odds-group {
    display: flex;
    gap: 10px;
}

.odd-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    min-width: 75px;
}

.odd-btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
    transform: scale(1.03);
}

.odd-btn.selected {
    background-color: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(250, 204, 21, 0.5);
}

/* --- ডান পাশের বেট স্লিপ (Right Sidebar) --- */
.right-sidebar {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 18px;
    border: 1px solid var(--border-color);
    height: fit-content;
    position: sticky;
    top: 90px;
}

.right-sidebar h3 {
    font-size: 15px;
    color: var(--accent-color);
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.betslip-box {
    text-align: center;
    color: var(--text-muted);
    padding: 30px 15px;
    font-size: 13.5px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    background-color: rgba(30, 41, 59, 0.3);
}

/* একটিভ বেট স্লিপের ডিজাইন */
.active-slip {
    background-color: var(--bg-primary);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 15px;
    text-align: left;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
}

.slip-match {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.slip-detail {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    background: var(--bg-tertiary);
    padding: 6px 10px;
    border-radius: 4px;
}

.slip-input-group {
    margin-bottom: 12px;
}

.slip-input-group label {
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
}

.slip-input-group input {
    width: 100%;
    padding: 9px 12px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.slip-input-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(250, 204, 21, 0.25);
}

.payout-info {
    font-size: 13.5px;
    color: var(--accent-color);
    font-weight: 700;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* --- এডভ্যান্সড রেসপন্সিভ ডিজাইন (Media Queries) --- */

/* ট্যাবলেট ভিউ (Max-width: 1024px) */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 220px 1fr;
    }
    .right-sidebar {
        grid-column: 1 / -1;
        position: static;
    }
}

/* মোবাইল ভিউ (Max-width: 768px) */
@media (max-width: 768px) {
    header {
        padding: 12px 20px;
    }
    .logo {
        font-size: 22px;
    }
    .auth-buttons button {
        padding: 7px 14px;
        font-size: 12.5px;
    }
    nav {
        padding: 10px 20px;
    }
    .main-container {
        grid-template-columns: 1fr;
        padding: 15px;
        gap: 15px;
    }
    .match-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .odds-group {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }
    .odd-btn {
        width: 100%;
        padding: 10px 5px;
    }
}