/* Base & Theme Styles */
:root {
    --primary: #0b5d3b;
    --secondary: #198754;
    --accent: #f4b400;
    --dark: #092b20;
    --light: #f4f9f6;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    color: #333;
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* Header & Navigation */
.navbar {
    background: #ffffff;
    box-shadow: 0 3px 15px rgba(0,0,0,.08);
}

.navbar-brand {
    font-weight: 800;
    color: var(--primary) !important;
}

.nav-link {
    font-weight: 600;
    color: #333 !important;
    margin-left: 12px;
}

.nav-link:hover {
    color: var(--secondary) !important;
}

.rajshree-logo {
    width: 120px;
    height: 80px;
    object-fit: contain;
    display: block;
}

/* Sections */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    color: var(--primary);
    font-size: 34px;
}

.section-title p {
    color: #777;
}

/* Hero Section */
.hero {
    min-height: 720px;
    background: linear-gradient(rgba(5,48,33,.82), rgba(5,48,33,.88)),
                url('https://images.unsplash.com/photo-1473448912268-2022ce9509d8?auto=format&fit=crop&w=2000&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
}

.hero-content {
    max-width: 1050px;
    margin: auto;
}

.hero .conference-label {
    display: inline-block;
    background: var(--accent);
    color: #222;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 700;
    margin-bottom: 25px;
}

.hero h1 {
    font-size: 48px;
    line-height: 1.2;
    text-transform: uppercase;
}

.hero h2 {
    font-size: 26px;
    font-weight: 500;
    margin-top: 25px;
}

.hero-date {
    font-size: 20px;
    margin: 25px 0;
}

.btn-main {
    background: var(--accent);
    color: #222;
    border: none;
    padding: 13px 30px;
    border-radius: 30px;
    font-weight: 700;
    margin: 6px;
    text-decoration: none;
    display: inline-block;
}

.btn-main:hover {
    background: #fff;
    color: var(--primary);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin: 30px 0;
}

.count-box {
    min-width: 90px;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.3);
    padding: 15px;
    border-radius: 10px;
}

.count-box span {
    display: block;
    font-size: 30px;
    font-weight: 800;
}

.count-box small {
    font-size: 12px;
    text-transform: uppercase;
}

/* About */
.about {
    background: var(--light);
}

.about-box {
    background: white;
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0,0,0,.06);
    margin-bottom: 30px;
}

.about-box h3 {
    text-align: center;
    margin-bottom: 20px;
}

.about-box p {
    text-align: justify;
    line-height: 1.8;
    margin-bottom: 15px;
}

/* Highlights / Info Cards */
.info-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: 15px;
    background: white;
    box-shadow: 0 8px 25px rgba(0,0,0,.08);
    height: 100%;
    transition: .3s;
}

.info-card:hover {
    transform: translateY(-8px);
}

.info-card i {
    font-size: 45px;
    color: var(--secondary);
    margin-bottom: 15px;
}

/* Track Cards */
.track-card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 7px 25px rgba(0,0,0,.08);
    height: 100%;
    overflow: hidden;
}

.track-card .card-header {
    background: var(--primary);
    color: white;
    font-weight: 700;
    padding: 18px;
}

.track-card ul {
    padding: 25px 40px;
}

.track-card li {
    margin-bottom: 8px;
}

/* Dates */
.dates {
    background: var(--light);
}

.date-box {
    background: white;
    padding: 25px;
    border-left: 5px solid var(--secondary);
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 5px 18px rgba(0,0,0,.06);
}

.date-box strong {
    color: var(--primary);
}

/* Committee */
.committee-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 7px 20px rgba(0,0,0,.07);
    margin-bottom: 20px;
}

/* Registration */
.registration {
    background: linear-gradient(135deg, #0b5d3b, #198754);
    color: white;
}

.registration .section-title h2,
.registration .section-title p {
    color: white;
}

.fee-table {
    background: white;
    color: #333;
    border-radius: 15px;
    overflow: hidden;
}

/* Contact */
.contact {
    background: #f8f8f8;
}

.contact-box {
    background: white;
    padding: 30px;
    border-radius: 15px;
    height: 100%;
    box-shadow: 0 5px 20px rgba(0,0,0,.06);
}

.contact-box i {
    font-size: 30px;
    color: var(--secondary);
}

/* Footer */
footer {
    background: #06251a;
    color: white;
    padding: 30px 0;
    text-align: center;
}

@media(max-width: 768px) {
    .hero { min-height: 680px; }
    .hero h1 { font-size: 32px; }
    .hero h2 { font-size: 19px; }
    .section { padding: 60px 0; }
}