/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
    line-height: 1.6;
    color: #374151;
}

/* Utility classes */
.min-h-screen {
    min-height: 100vh;
}

.bg-gray-50 {
    background-color: #6b7280;
}

/* Header Section */
.header-section {
    background-color: rgb(226, 229, 233);
}

/* Header Container: adjust padding and margin here to control space around the entire header area. */
.header-container {
    max-width: 100%;
    margin: 0 40px 0 30px;
    padding: 0rem 1.5rem 0rem;
    /* text-align: center; ADD THIS LINE TO CENTER THE MAIN TITLE */
}

.main-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 300;
    color: #031d65;
    /* margin-bottom: 1rem; */
    /* Will adjust this based on the underline's position */
    letter-spacing: -0.025em;
    line-height: 1;
    text-align: center;
    /* This centers the text within the h3 */
    position: relative;
    /* THIS IS CRUCIAL: Allows us to position the inner span absolutely */
    margin-bottom: 2rem;
    /* Adjust this value for space below the underline and before description */

}

.main-title-underline {
    display: block;
    /* Make the span behave like a block for full control */
    position: absolute;
    /* Position it relative to its parent (.main-title) */
    bottom: -10px;
    /* Adjust this value to move the underline up/down relative to the text baseline */
    left: 50%;
    /* Start from the horizontal center of .main-title */
    transform: translateX(-50%);
    /* Move back by half its own width to truly center it */

    width: 90px;
    /* THIS IS WHERE YOU SET YOUR CUSTOM SHORT WIDTH (e.g., 90px or adjust as needed) */
    height: 4px;
    background-color: #e2b347;
    /* Your gold accent color */
    border-radius: 2px;
}


.main-description {
    font-size: 1.1rem;
    color: #6b7280;
    max-width: 100%;
    margin-bottom: 0rem;
    text-align: center;
}

/* Sticky Header */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: white;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.sticky-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.5rem 0.5rem;
}

.sticky-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 1024px) {
    .sticky-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .header-container {
        padding: 1.5rem 1rem 2rem;
    }

    .sticky-container {
        padding: 0.5rem 0.9rem;
    }
}

/* Category Navigation */
.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

@media (min-width: 1024px) {
    .category-nav {
        gap: 1rem;
    }
}

.nav-btn {
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    background-color: #f3f4f6;
    color: #374151;
}

.nav-btn:hover {
    background-color: #e5e7eb;
}

.nav-btn.active {
    background-color: #1e3a8a;
    color: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Search Bar */
.search-container {
    position: relative;
    flex: 1;
    max-width: 28rem;
}

@media (min-width: 1024px) {
    .search-container {
        margin-left: auto;
    }
}

.search-input {
    width: 100%;
    padding: 0.75rem 3rem 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 9999px 9999px 9999px 9999px;
    font-size: 1rem;
    color: #111827;
    background-color: white;
    outline: none;
    transition: all 0.2s ease;
}

.search-input::placeholder {
    color: #6b7280;
}

.search-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    padding: 0 1rem;
    background-color: #1e3a8a;
    color: white;
    border: none;
    border-radius: 0 9999px 9999px 0;
    cursor: pointer;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background-color: #1e40af;
}

.search-icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* Alumni Section */
.alumni-section {
    max-width: 85%;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

@media (min-width: 1024px) {
    .alumni-section {
        padding: 3rem 2rem;
    }
}

.alumni-container {
    background-color: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

@media (min-width: 1024px) {
    .alumni-container {
        padding: 3rem;
    }
}

/* Alumni Grid */
.alumni-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .alumni-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .alumni-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .alumni-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Alumni Card */
.alumni-card {
    background-color: white;
    border-radius: 0.75rem;
    border: 1px solid #d2dcf0;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

/* Initially hide all cards except those belonging to the active category or 'all' */
/* This can be handled by JavaScript setting display: block/none */

.alumni-image {
    width: 10rem;
    height: 10rem;
    margin: 0 auto 1rem;
    object-fit: cover;
    border-radius: 0.5rem;
}

.alumni-name {
    font-size: 1.125rem;
    font-weight: 300;
    color: #1e3a8a;
    margin-bottom: 0.5rem;
    line-height: 1.4;
    display: flex;
    align-items: center;
    justify-content: center;
    word-wrap: break-word;
}

.alumni-name-a {
    text-decoration: none;
    color: #1e3a8a;
}

.alumni-batch {
    color: #6b7280;
    font-size: 0.875rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem;
}

.no-results-text {
    color: #9ca3af;
    font-size: 1.125rem;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .main-title {
        font-size: 2.5rem;
    }

    .main-description {
        font-size: 1.125rem;
    }

    .header-container {
        padding: 2.5rem 1rem 2rem;
    }

    .sticky-container {
        padding: 1rem;
    }

    .alumni-section {
        padding: 2rem 1rem;
    }

    .alumni-container {
        padding: 1.5rem;
    }

    .category-nav {
        justify-content: center;
    }

    .nav-btn {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
}