/* =====================================================
   GLOBAL STYLES – VIKSIT BHARAT FOUNDATION
===================================================== */
body {
    font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
    line-height: 1.7;
    background: linear-gradient(180deg, #f8f9fa 0%, #eef4f8 100%);
    color: #212529;
}

a {
    text-decoration: none;
}

.text-justify {
    text-align: justify;
}

/* =====================================================
   UNIVERSITY HEADER LOGO
===================================================== */
.university-header-logo {
    max-width: 100%;
    width: 900px;
    height: auto;
}

/* =====================================================
   NAVIGATION – STABILITY & TRUST
===================================================== */
.navbar {
    border-bottom: 1px solid #e5e7eb;
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 0.4px;
}

.nav-link {
    font-weight: 500;
    margin-left: 6px;
}

.nav-link:hover {
    color: #0c5a9e;
}

/* =====================================================
   CAMPUS IMAGE SLIDER – INSTITUTIONAL IDENTITY
===================================================== */
.campus-slider {
    margin-top: 0;
}

.campus-slider img {
    height: 520px;
    object-fit: cover;
}

/* Carousel captions */
.carousel-caption {
    background: rgba(0, 0, 0, 0.55);
    padding: 15px 22px;
    border-radius: 6px;
}

.carousel-caption h5 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #ffb703; /* saffron-gold */
}

.carousel-caption p {
    font-size: 1rem;
    color: #e6f2ff;
}

/* Carousel indicators */
.carousel-indicators button {
    background-color: #ffffff;
    opacity: 0.6;
}

.carousel-indicators .active {
    background-color: #ff9933;
    opacity: 1;
}

/* =====================================================
   BANNER – VIKSIT BHARAT 2047 VISION
   (Nation + Knowledge + Technology + Sustainability)
===================================================== */
.banner {
    position: relative;
    background:
        linear-gradient(
            135deg,
            rgba(6, 28, 48, 0.94),   /* deep India blue */
            rgba(12, 58, 94, 0.94),  /* technology blue */
            rgba(22, 97, 76, 0.94)   /* sustainability green */
        ),
        url('../images/banner.jpg') center/cover no-repeat;
    color: #ffffff;
}

.banner .overlay {
    background: rgba(0, 0, 0, 0.25);
}

/* =====================================================
   CONFERENCE TITLE BLOCK – ASPIRATIONAL INDIA
===================================================== */
.conference-title-block {
    text-align: center;
    letter-spacing: 0.4px;
}

/* Line 1 – National Importance */
.conference-title-block .line-1 {
    font-size: 3rem;
    font-weight: 700;
    color: #ffb703; /* Bharat saffron-gold */
}

/* Line 2 – Connector */
.conference-title-block .line-2 {
    font-size: 1.6rem;
    font-weight: 400;
    margin: 6px 0;
    color: #ffffff;
}

/* Line 3 – Knowledge + Policy + AI */
.conference-title-block .line-3 {
    font-size: 1.65rem;
    font-weight: 500;
    line-height: 1.45;
    color: #e3f2fd; /* enlightened knowledge blue */
}

/* Line 4 – Future Marker */
.conference-title-block .line-4 {
    font-size: 1.35rem;
    font-weight: 700;
    font-style: italic;
    letter-spacing: 1.2px;
    color: #2ecc71; /* growth green – Viksit Bharat */
}

/* =====================================================
   TRICOLOUR DIVIDER – NATIONAL IDENTITY
===================================================== */
.tricolour-divider {
    width: 240px;
    height: 4px;
    margin: 18px auto;
    border-radius: 3px;
    background: linear-gradient(
        to right,
        #ff9933 0%,
        #ff9933 33%,
        #ffffff 33%,
        #ffffff 66%,
        #138808 66%,
        #138808 100%
    );
}

/* =====================================================
   COUNTDOWN TIMER – FUTURE ORIENTATION
===================================================== */
#countdown h2 {
    font-weight: 700;
    transition: all 0.3s ease;
}

#countdown .border,
.countdown-box {
    background: linear-gradient(180deg, #ffffff, #f2f6f9);
    border-left: 4px solid #0c5a9e; /* policy-tech accent */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#countdown .border:hover,
.countdown-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

/* =====================================================
   BUTTONS – ACTION FOR VIKSIT BHARAT
===================================================== */
.btn-warning {
    background: linear-gradient(
        90deg,
        #ffb703,
        #ff9933,
        #2ecc71
    );
    border: none;
    color: #000;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.28);
}

.btn-warning:hover {
    background: linear-gradient(
        90deg,
        #2ecc71,
        #ff9933,
        #ffb703
    );
    color: #000;
}

/* =====================================================
   SECTION HEADINGS – ACADEMIC STRUCTURE
===================================================== */
section h2,
section h3 {
    font-weight: 600;
    color: #0c3a5e;
}

/* =====================================================
   FOOTER – INSTITUTIONAL STRENGTH
===================================================== */
footer {
    background: linear-gradient(
        90deg,
        #061c30,
        #0c3a5e,
        #164e78
    );
    color: #ffffff;
}

footer p {
    margin-bottom: 6px;
}

/* =====================================================
   MOBILE OPTIMISATION – ACCESSIBLE INDIA
===================================================== */
@media (max-width: 768px) {

    .conference-title-block .line-1 {
        font-size: 2.1rem;
    }

    .conference-title-block .line-2 {
        font-size: 1.2rem;
    }

    .conference-title-block .line-3 {
        font-size: 1.1rem;
    }

    .conference-title-block .line-4 {
        font-size: 1rem;
    }

    .tricolour-divider {
        width: 160px;
    }

    .campus-slider img {
        height: 300px;
    }

    .carousel-caption h5 {
        font-size: 1.2rem;
    }

    .carousel-caption p {
        font-size: 0.9rem;
    }
}