@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* --- NEW SMART THEME (Deep Navy Blue) --- */
    --bg-dark: #0f172a;       /* Main Background (Deep Navy) */
    --bg-card: #1e293b;       /* Card Background (Lighter Navy) */
    --bg-hover: #334155;      /* Hover State */
    
    --primary: #3b82f6;       /* Bright Blue Brand Color */
    --primary-hover: #2563eb;
    
    --text-white: #f8fafc;    /* Bright White Text */
    --text-gray: #cbd5e1;     /* Soft Silver Text */
    
    /* Royal Blue to Bright Cyan */
--accent-gradient: linear-gradient(135deg, #004ff8 0%, #1e9cb3 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
}

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

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Button Styles */
.btn {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: inline-block;
    border: none;
    transition: 0.3s;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary);
    color: white;
}


/* --- LOGO STYLING --- */
.logo {
    display: flex;
    align-items: center;
    gap: 12px; /* লোগো ও লেখার মাঝের গ্যাপ */
    font-size: 1.5rem; /* ফন্ট সাইজ */
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    line-height: 1;
}

.logo span {
    color: var(--primary); /* ডট বা স্পেশাল কালার */
}

/* লোগো ইমেজের সাইজ কন্ট্রোল */
.nav-logo-img {
    height: 40px; /* হাইট ফিক্সড, উইডথ অটো */
    width: auto;
    object-fit: contain;
}

/* মোবাইলে লোগো একটু ছোট হলে ভালো লাগে */
@media (max-width: 768px) {
    .nav-logo-img {
        height: 32px;
    }
    .logo {
        font-size: 1.3rem;
    }
}