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

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Hind Siliguri', sans-serif;
    background-color: #f8f9fa;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* কাস্টম কালার ক্লাস */
.text-custom-blue { color: #0f4c81 !important; }
.bg-custom-blue { background-color: #0f4c81 !important; }
.text-custom-orange { color: #ff7f27 !important; }
.bg-custom-orange { background-color: #ff7f27 !important; }

/* Navbar */
.brand-logo {
    height: 38px;
    width: auto;
    object-fit: contain;
}

.navbar-nav .nav-link {
    color: #333 !important;
    font-weight: 600;
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link:hover {
    color: #ff7f27 !important;
}

/* --- বাটন ফিক্স (ক্লিক/হোভার করলেও সাদা হবে না) --- */
.btn-custom-orange {
    background-color: #ff7f27 !important;
    border-color: #ff7f27 !important;
    color: #ffffff !important;
    font-weight: 600;
    transition: all 0.2s ease-in-out;
}
.btn-custom-orange:hover,
.btn-custom-orange:focus,
.btn-custom-orange:active,
.btn-custom-orange.active {
    background-color: #e56b18 !important;
    border-color: #e56b18 !important;
    color: #ffffff !important;
    box-shadow: 0 0 0 0.25rem rgba(255, 127, 39, 0.25) !important;
}

.btn-custom-blue {
    background-color: #0f4c81 !important;
    border-color: #0f4c81 !important;
    color: #ffffff !important;
    font-weight: 600;
    transition: all 0.2s ease-in-out;
}
.btn-custom-blue:hover,
.btn-custom-blue:focus,
.btn-custom-blue:active,
.btn-custom-blue.active {
    background-color: #0b3860 !important;
    border-color: #0b3860 !important;
    color: #ffffff !important;
    box-shadow: 0 0 0 0.25rem rgba(15, 76, 129, 0.25) !important;
}

.btn-outline-custom-light {
    background-color: transparent !important;
    border: 2px solid #ffffff !important;
    color: #ffffff !important;
    font-weight: 600;
}
.btn-outline-custom-light:hover,
.btn-outline-custom-light:focus,
.btn-outline-custom-light:active {
    background-color: #ffffff !important;
    color: #0f4c81 !important;
}

/* হিরো সেকশন */
.hero-section {
    background: linear-gradient(135deg, #0f4c81 0%, #072e52 100%);
    color: white;
    padding: 70px 0;
    position: relative;
    overflow: hidden;
}

.hero-rocket-icon {
    font-size: 110px;
    color: #ff7f27;
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.3));
    display: inline-block;
}

/* পেজ ব্যানার */
.page-header-banner {
    background: linear-gradient(135deg, #0f4c81 0%, #072e52 100%);
    color: white;
    padding: 45px 0;
}

/* সার্ভিস কার্ড */
.service-card {
    background: #fff;
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    height: 100%;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(15, 76, 129, 0.12);
}

.icon-box {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

/* আমাদের সম্পর্কে ইমেজ সাইজ কন্ট্রোল */
.about-img {
    max-height: 180px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

/* কনটাক্ট সেকশন */
.contact-section {
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    padding: 35px 25px;
}

/* রেসপনসিভ মিডিয়া কোয়েরি */
@media (max-width: 991.98px) {
    .hero-section {
        padding: 45px 0;
        text-align: center;
    }
    .hero-rocket-icon {
        font-size: 70px;
        margin-top: 25px;
    }
    .navbar-collapse {
        background: #ffffff;
        padding: 15px;
        border-radius: 8px;
        margin-top: 10px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }
}

@media (max-width: 575.98px) {
    .display-4 {
        font-size: 1.85rem !important;
    }
    .hero-rocket-icon {
        font-size: 60px;
    }
    .contact-section {
        padding: 20px 15px;
    }
}