/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 12px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #0f4c75 0%, #1e3a5f 100%);
    color: white;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

.banner-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    opacity: 0.1;
}

.header-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.logos {
    display: flex;
    gap: 1rem;
}

.logo {
    height: 80px;
    width: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.header-text h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.header-text p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Navigation */
.nav {
    background: #fff;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* .nav-list {
    display: flex;
    list-style: none;
    justify-content: center;
    padding: 1rem 0;
} */

.nav-list {
    display: flex;
    flex-wrap: wrap;  
    justify-content: center;
    align-items: center;
    gap: 2px;                  
    list-style: none;
    padding: 0.75rem 0;
    margin: 0;
}

/* .nav-link {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    margin: 0 0.25rem;
} */

.nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 42px;
    text-decoration: none;
    color: #666;
    font-weight: 500;
    padding: 0 1.25rem;
    border-radius: 25px;
    white-space: nowrap;
    transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}


/* .nav-link:hover, .nav-link.active {
    background: linear-gradient(135deg, #0f4c75, #1e3a5f);
    color: white;
    transform: translateY(-2px);
} */

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, #0f4c75, #1e3a5f);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* mobile */
@media (max-width: 768px) {
    .nav-link {
        height: auto;
        padding: 10px 16px;
        font-size: 14px;
    }
}


/* Sections */
.section {
    padding: 4rem 0;
}

.bg-light {
    background: #f8fafc;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: #1e293b;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #0f4c75, #1e3a5f);
    border-radius: 2px;
}

/* Grid & Cards */
.grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}
.gridequ {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* equal width columns */
  gap: 30px;
  align-items: stretch; /* equal height cards */
}

.content-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.2);
}

.content-card-equ {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.content-card h2, .content-card h3 {
    color: #1e293b;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.content-card p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #64748b;
}

.image-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sponsor-img {
    max-width: 450px;   /* controls visible size */
    width: auto;        /* prevents stretching */
    height: auto;       /* keeps aspect ratio */
    object-fit: contain;
    margin: 0 auto;     /* center horizontally */
}

.section-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #0f4c75, #1e3a5f);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(15,76,117,0.4);
}

.btn-secondary {
    background: transparent;
    color: #0f4c75;
    border-color: #0f4c75;
}

.btn-secondary:hover {
    background: #0f4c75;
    color: white;
    transform: translateY(-3px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.action-buttons, .quick-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* Themes */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.theme-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border-left: 4px solid #0f4c75;
    transition: transform 0.3s ease;
}

.theme-card:hover {
    transform: translateY(-5px);
}

.theme-card h3 {
    color: #0f4c75;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.theme-card ul {
    list-style: none;
}

.theme-card li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.theme-card li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #0f4c75;
    font-weight: bold;
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, #e0f2fe, #f0f9ff);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #0ea5e9;
    margin: 2rem 0;
}

.info-box h4 {
    color: #0369a1;
    margin-bottom: 1rem;
}

/* Key Dates */
.key-dates {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.date-item {
    text-align: center;
}

.date-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #0f4c75;
    background: #f1f5f9;
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 0.5rem;
}

/* Leadership & Committees */
.leadership-grid, .rp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.leader-card, .rp-card {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.leader-card:hover, .rp-card:hover {
    transform: translateY(-5px);
}

.leader-img, .rp-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 4px solid #f1f5f9;
}

/* .sponsor-img {
    height: 100px;
    width: auto;
    margin-bottom: 1rem;
} */

/* Venue & Gallery */
.venue-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
    align-items: center;
}

.map-container {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.gallery-img {
    height: 150px;
    width: 100%;
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.gallery-img:hover {
    transform: scale(1.05);
}

/* Lists */
.category-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.5rem;
    list-style: none;
    margin: 1.5rem 0;
}
.category-list-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 pills per row */
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.pill-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin: 15px 0 20px;
}

.category-pill {
  padding: 10px 14px;
  font-size: 14px;
  text-align: center;
  background: #f3f6f9;
  border-radius: 18px;
  line-height: 1.3;
}


.category-list li {
    background: #f1f5f9;
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    text-align: center;
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-text h1 {
        font-size: 2rem;
    }
    
    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .venue-content {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid, .rp-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .dates-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: 2rem 0;
    }
    
    .content-card {
        padding: 1.5rem;
    }
}

/* Footer */
.footer {
    background: #1e293b;
    color: #94a3b8;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}

.caption {
    font-size: 0.85rem;
    color: #64748b;
    font-style: italic;
    text-align: center;
    margin-top: 0.5rem;
}

/* color */

.fee {
    font-weight: 700;        /* bold */
    font-size: 1.25rem;      /* larger amount */
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* INR styling */
.fee.inr {
    color: #16a34a;          /* green */
}

/* USD styling */
.fee.usd {
    color: #2563eb;          /* blue */
}

/* Currency icon styling */
.fee::before {
    font-size: 1.1rem;
    font-weight: 600;
    opacity: 0.9;
}

/* Optional: different icons (auto handled by symbol) */
.fee.inr::before {
    content: "₹";
    margin-right: 2px;
    display: none; /* hide if already in text */
}

.fee.usd::before {
    content: "$";
    margin-right: 2px;
    display: none; /* hide if already in text */
}

/* commitee card */

.committee-section {
  margin-top: 50px;
}

.committee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.committee-pill {
  background: #f1f5f9;
  padding: 16px 18px;
  border-radius: 18px;
  text-align: center;
}

.committee-pill strong {
  display: block;
  font-size: 1rem;
  color: #0f172a;
  margin-bottom: 4px;
}

.committee-pill span {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.4;
}