:root {
    --primary-blue: #0066cc;
    --dark-blue: #003d7a;
    --light-blue: #e6f2ff;
    --sky-blue: #1f90ff;
    --navy: #001a4d;
    --text-dark: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --accent: #ff6b35;
    --success: #28a745;
    --page-padding-x: 4%;
    --section-padding-block: clamp(3rem, 6%, 5rem);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: min(100%, calc(100% - 2 * var(--page-padding-x)));
    max-width: none;
    margin: 0 auto;
    padding-inline: 0;
}

.navbar {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

.navbar-container {
    width: min(100%, calc(100% - 2 * var(--page-padding-x)));
    max-width: none;
    margin: 0 auto;
    padding-inline: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    position: relative;
}

/* ================================
   BRAND / LOGO
================================ */

.brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    color: var(--white);
    text-decoration: none;
    flex-shrink: 0;
}

.iiser-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    background-color: var(--white);
    border-radius: 3px;
    padding: 0px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 42px;
    height: 34px;
    background: transparent;
    border: 0;
    padding: 0;
    cursor: pointer;
    z-index: 1100;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    border-radius: 2px;
    background: var(--white);
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

body.menu-open {
    overflow: hidden;
}

.nav-menu {
    display: flex;
    gap: 1rem 1.2rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.25s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hero {
    color: var(--white);
    padding: clamp(4.5rem, 10vw, 7.5rem) var(--page-padding-x);
    text-align: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background-image:
        linear-gradient(135deg, rgba(0, 29, 77, 0.82) 0%, rgba(0, 102, 204, 0.72) 45%, rgba(31, 144, 255, 0.68) 100%),
        url('assets/hero-bg.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 29, 77, 0.3) 0%, rgba(0, 102, 204, 0.2) 100%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(1.8rem, 4.5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero h2 {
    font-size: clamp(1.3rem, 3vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent);
}

.hero p {
    font-size: clamp(0.95rem, 2vw, 1.3rem);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #ff5722;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255,107,53,0.4);
}

.btn-secondary {
    background-color: var(--primary-blue);
    color: var(--white);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,102,204,0.25);
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

.about,
.key-info,
.topics,
.schedule,
.speakers,
.call-for-papers,
.registration,
.location,
.contact {
    padding: var(--section-padding-block) var(--page-padding-x);
}

.about {
    background-color: var(--gray-light);
}

.about h2,
.topics h2,
.schedule h2,
.speakers h2,
.call-for-papers h2,
.registration h2,
.location h2,
.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 2.5rem;
}

.about-content,
.registration-content,
.location-content,
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text p,
.registration-info p,
.venue-info p,
.contact-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.about-highlights,
.registration-details,
.benefits-list,
.venue-info,
.contact-info,
.contact-form {
    display: grid;
    gap: 1rem;
}

.highlight-box,
.registration-info,
.venue-details,
.contact-info,
.contact-form {
    background: var(--white);
    padding: 1.8rem;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.highlight-box {
    background: linear-gradient(135deg, var(--primary-blue), var(--sky-blue));
    color: var(--white);
}

.highlight-box h3,
.registration-item h4,
.venue-details h3,
.venue-details h4,
.contact-info h3,
.contact-form h3 {
    color: var(--dark-blue);
    margin-bottom: 0.6rem;
}

.highlight-box h3 {
    color: var(--white);
}

.key-info {
    background: linear-gradient(135deg, var(--primary-blue), var(--sky-blue));
    color: var(--white);
}

.info-grid,
.topics-grid,
.cfp-details,
.schedule-list,
.speakers-grid {
    display: grid;
    gap: 2rem;
}

.info-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.info-card,
.topic-box,
.cfp-item,
.speaker-card,
.registration-item {
    background: rgba(255,255,255,0.95);
    color: var(--text-dark);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.info-card {
    background: rgba(255,255,255,0.12);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.2);
}

.topic-box {
    background: var(--light-blue);
    border-left: 5px solid var(--primary-blue);
}

.topic-box h3,
.cfp-item h3,
.registration-item h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.registration-fees {
    list-style: none;
    padding: 0;
    margin: 0.6rem 0 0;
    display: grid;
    gap: 0.5rem;
}

.registration-fees li {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.6;
}

.schedule {
    background-color: var(--gray-light);
}

.schedule-info {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.schedule-list {
    list-style: none;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.schedule-list li {
    padding-left: 1.5rem;
    position: relative;
}

.schedule-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.call-for-papers {
    background: linear-gradient(135deg, var(--light-blue), rgba(230,242,255,0.5));
}

.cfp-content {
    text-align: center;
}

.cfp-content p {
    color: var(--text-light);
    margin-bottom: 1.8rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cfp-details {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-bottom: 2rem;
}

.abstract-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.abstract-actions .btn {
    min-width: 220px;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0, 102, 204, 0.18);
}

.abstract-note {
    margin-top: 1.2rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 600;
}

.registration {
    background: linear-gradient(135deg, #f2f8ff 0%, #edf5ff 45%, #f8fbff 100%);
    min-height: auto;
    display: flex;
    align-items: center;
    padding-block: clamp(3rem, 6vh, 4.5rem);
    position: relative;
    overflow: hidden;
}

.registration::before {
    content: '';
    position: absolute;
    inset: auto -10% -20% auto;
    width: 20rem;
    height: 20rem;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.16) 0%, rgba(0, 102, 204, 0.02) 60%, transparent 100%);
    border-radius: 50%;
    pointer-events: none;
}

.registration .container {
    width: 100%;
    position: relative;
    z-index: 1;
}

.registration-content {
    display: block;
}

.registration-info {
    border-left: 6px solid var(--primary-blue);
    width: 100%;
    max-width: 100%;
    background: linear-gradient(145deg, #ffffff 0%, #f8fbff 100%);
    padding: clamp(1.1rem, 2.5vw, 1.8rem);
    border-radius: 22px;
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    overflow: hidden;
}

.registration-info h3 {
    color: var(--dark-blue);
    margin-bottom: 0.2rem;
    font-size: 1.5rem;
    line-height: 1.3;
}

.registration-intro {
    color: var(--text-light);
    margin-bottom: 0;
    width: 100%;
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.7;
}

.registration-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
    gap: 1rem;
    margin-top: 0.2rem;
    align-items: stretch;
}

.registration-item {
    background: linear-gradient(135deg, var(--light-blue), rgba(230, 242, 255, 0.85));
    border-left: 4px solid var(--sky-blue);
    border-radius: 16px;
    padding: 1rem 1.1rem;
    box-shadow: 0 10px 24px rgba(0, 102, 204, 0.08);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-width: 0;
    overflow-wrap: anywhere;
}

.registration-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 102, 204, 0.14);
}

.registration-item h4 {
    font-size: 1.05rem;
    margin-bottom: 0.45rem;
    line-height: 1.4;
}

.registration-item > p {
    margin-bottom: 0.35rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.registration-fees {
    margin-top: 0.35rem;
    display: grid;
    gap: 0.45rem;
    list-style: none;
}

.registration-fees li {
    padding-bottom: 0.35rem;
    border-bottom: 1px solid rgba(0, 102, 204, 0.12);
    font-size: 0.92rem;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.registration-fees li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.registration-actions {
    margin-top: 0.3rem;
    display: block;
}

.registration-simple-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 0.5rem;
}

.registration-action-step {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: clamp(1rem, 2.5vw, 1.4rem);
    background: var(--white);
    border: 1px solid rgba(0, 102, 204, 0.14);
    border-radius: 16px;
    box-shadow: 0 10px 28px rgba(0, 61, 122, 0.07);
}

.registration-action-step h3 {
    margin: 0 0 0.35rem;
    font-size: 1.2rem;
}

.registration-action-step p {
    margin: 0 0 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.registration-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    flex: 0 0 2rem;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 700;
}

.registration-form-placeholder {
    cursor: not-allowed;
    opacity: 0.65;
    pointer-events: none;
}

.registration-actions .btn-primary {
    box-shadow: 0 12px 24px rgba(255, 107, 53, 0.24);
}

@media (max-width: 768px) {
    .registration {
        padding-block: 2.75rem 3.25rem;
    }

    .registration-info {
        padding: 1rem;
        border-left-width: 4px;
    }

    .registration-details {
        grid-template-columns: 1fr;
    }

    .registration-actions {
        justify-content: center;
    }

    .registration-simple-actions {
        grid-template-columns: 1fr;
    }
}

/* ================================
   LOCATION SECTION
================================ */

.location {
    background-color: var(--white);
}

.location-content {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
    align-items: stretch;
}


/* ================================
   VENUE DETAILS
================================ */

.venue-details,
.location-map {
    background: var(--white);
    padding: 1.8rem;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    height: 100%;
}

.venue-details {
    display: flex;
    flex-direction: column;
}

.venue-details h3,
.location-map h3 {
    color: var(--dark-blue);
    margin-bottom: 1rem;
}


/* ================================
   VENUE INFORMATION
================================ */

.venue-info {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.venue-info p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

.directions {
    margin-top: 0.5rem;
}

.directions h4 {
    color: var(--dark-blue);
    margin-bottom: 0.6rem;
}

.directions-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-light);
}

.directions-list li {
    margin-bottom: 0.6rem;
    line-height: 1.6;
}


/* ================================
   MAP
================================ */

.location-map {
    display: flex;
    flex-direction: column;
}

.map-wrapper {
    flex: 1;
    min-height: 320px;
    overflow: hidden;
    border-radius: 12px;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    min-height: 320px;
    border: 0;
    display: block;
}

@media (max-width: 768px) {

    .location-content {
        grid-template-columns: 1fr;
    }

    .venue-details,
    .location-map {
        height: auto;
    }

    .map-wrapper,
    .map-wrapper iframe {
        min-height: 300px;
    }

}

.contact {
    background-color: var(--white);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 1px solid var(--gray-medium);
    border-radius: 6px;
    margin-bottom: 0.9rem;
    font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid rgba(0,102,204,0.25);
    border-color: var(--primary-blue);
}

.footer {
    background: var(--navy);
    color: rgba(255,255,255,0.9);
    padding: 2.5rem var(--page-padding-x);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.footer h3,
.footer h4 {
    color: var(--white);
    margin-bottom: 0.8rem;
}

.footer p,
.footer a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
}

.footer a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.12);
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    :root {
        --page-padding-x: 5%;
        --section-padding-block: clamp(2.2rem, 7%, 3.5rem);
    }

    .navbar {
        padding: 0.8rem 0;
    }

    .navbar-container {
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: min(80vw, 280px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        background: linear-gradient(180deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
        padding: 5rem 1.25rem 2rem;
        gap: 0.25rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 0 10px 35px rgba(0,0,0,0.25);
        z-index: 1100;
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu a {
        width: 100%;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.15);
        font-size: 1rem;
    }

    .nav-menu a::after {
        display: none;
    }

    .hero-buttons,
    .abstract-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .abstract-actions .btn {
        width: 100%;
        min-width: unset;
    }

    .about-content,
    .contact-content,
    .registration-content,
    .location-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.3rem;
    }

    .menu-toggle {
        width: 38px;
        height: 32px;
    }

    .nav-menu {
        width: min(84vw, 260px);
        padding: 4.5rem 1rem 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {

    .iiser-logo {
        width: 45px;
        height: 45px;
    }

    .logo {
        font-size: 1.2rem;
    }

    .brand {
        gap: 0.6rem;
    }

}

/* ==========================================================================
   Featured Speakers Section
   ========================================================================== */
/* ==========================================================================
   Featured Speakers Section (With Images)
   ========================================================================== */
/* ==========================================================================
   FEATURED SPEAKERS SECTION
   ========================================================================== */

.speakers {
    background-color: var(--gray-light);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-top: -2rem;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

.speakers-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 1rem;
}


/* ================================
   SPEAKER CARD
================================ */

.speaker-card {
    background: var(--white);
    color: var(--text-dark);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
    border-top: 5px solid var(--primary-blue);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-height: 430px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.speaker-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(0, 102, 204, 0.15);
}


/* ================================
   SPEAKER IMAGE
================================ */

.speaker-image-container {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 4px solid var(--gray-medium);
    background-color: var(--gray-light);
    display: flex;
    justify-content: center;
    align-items: center;
}

.speaker-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}


/* ================================
   SPEAKER INFORMATION
================================ */

.speaker-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    flex-grow: 1;
}

.speaker-info h3 {
    color: var(--dark-blue);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.speaker-designation {
    color: var(--primary-blue);
    font-size: 1rem;
    font-weight: 400;
    margin-bottom: 1rem;
    line-height: 1.5;
    letter-spacing: 0.3px;
}

.speaker-institute {
    color: var(--text-light);
    font-size: 0.95rem;
    font-style: italic;
    margin-bottom: 1.25rem;
    line-height: 1.5;
    min-height: 2.8rem;
}


/* Speaker Domain Tags */

.speaker-tag {
    margin-top: auto;
    background-color: var(--light-blue);
    color: var(--dark-blue);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 7px 16px;
    border-radius: 20px;
    border: 1px solid rgba(0, 102, 204, 0.1);
    letter-spacing: 0.3px;
    line-height: 1.3;
}

/* ================================
   CONFERENCE ORGANISING TEAM
================================ */

.teams-section {
    padding: var(--section-padding-block) var(--page-padding-x);
    background-color: var(--gray-light);
}

.teams-section .container {
    width: 100%;
    max-width: none;
    margin: 0 auto;
}


/* ================================
   SECTION HEADER
================================ */

.teams-section .section-heading {
    text-align: center;
    margin: 0 auto 2.5rem;
}

.teams-section .section-label {
    display: inline-block;
    margin-bottom: 0.75rem;
    color: var(--primary-blue);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.teams-section .section-heading h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.teams-section .section-heading p {
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 0 auto;
}


/* ================================
   TEAM CATEGORY
================================ */

.team-group {
    margin-bottom: 4rem;
}

.team-group:last-child {
    margin-bottom: 0;
}

.team-group-title {
    text-align: center;
    color: var(--dark-blue);
    font-size: 1.7rem;
    margin-bottom: 2rem;
}


/* ================================
   TEAM MEMBER GRID
================================ */

.team-members-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem;
}


/* ================================
   MEMBER CARD
================================ */

.member-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    text-align: center;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--primary-blue);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.member-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 102, 204, 0.12);
}
.member-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.member-card-link .member-card {
    height: 100%;
}

.member-card-link:focus-visible {
    outline: 3px solid var(--sky-blue);
    outline-offset: 4px;
    border-radius: 12px;
}

/* ================================
   MEMBER PHOTO
================================ */

.member-photo {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background-color: var(--gray-light);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    transition: transform 0.4s ease;
}

.member-card:hover .member-photo img {
    transform: scale(1.04);
}


/* ================================
   MEMBER DETAILS
================================ */

.member-info {
    padding: 0.9rem 0.75rem 1.1rem;
}

.member-info h4 {
    margin: 0 0 0.35rem;
    color: var(--dark-blue);
    font-size: 1rem;
    line-height: 1.3;
}

.member-role {
    margin: 0;
    color: var(--text-light);
    font-size: 0.82rem;
    line-height: 1.4;
}
.member-position {
    margin-top: 0.75rem;
    color: var(--primary-blue);
    font-weight: 600;
}

/* ==========================================================================
   SPONSORSHIP SECTION
   ========================================================================== */

.sponsorship {
    padding: var(--section-padding-block) var(--page-padding-x);
    background: var(--gray-light);
}
.sponsorship .section-heading {
    text-align: center;
    margin: 0 auto 2.5rem;
}
.sponsorship .section-heading h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

/* ================================
   Sponsors Grid
================================ */

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}


/* ================================
   Sponsor Card
================================ */

.sponsor-card {
    display: flex;
    justify-content: center;
    align-items: center;

    background: var(--white);
    border-radius: 12px;
    padding: 2rem;

    min-height: 160px;

    border-top: 4px solid var(--primary-blue);

    box-shadow: 0 8px 24px rgba(0,0,0,0.06);

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;

    text-decoration: none;
}

.sponsor-card:hover {

    transform: translateY(-5px);

    box-shadow: 0 16px 36px rgba(0,102,204,0.14);

}

.sponsor-card img {

    max-width: 100%;
    max-height: 120px;

    object-fit: contain;

    transition: transform 0.3s ease;

}

.sponsor-card:hover img {

    transform: scale(1.05);

}


/* ================================
   Sponsorship Contact Card
================================ */

.sponsorship-contact {

    margin-top: 3rem;

    background: var(--white);

    border-radius: 12px;

    padding: 2rem;

    text-align: center;

    border-top: 4px solid var(--primary-blue);

    box-shadow: 0 8px 24px rgba(0,0,0,0.06);

}

.sponsorship-contact h3 {

    color: var(--dark-blue);

    margin-bottom: 1rem;

}

.sponsorship-contact p {

    color: var(--text-light);

    line-height: 1.7;

    max-width: 850px;

    margin: 0 auto 1rem;

}

.sponsorship-contact p:last-child {

    margin-bottom: 0;

}

.sponsorship-contact a {

    color: var(--primary-blue);

    font-weight: 600;

    text-decoration: none;

}

.sponsorship-contact a:hover {

    text-decoration: underline;

}


/* ================================
   Responsive
================================ */

@media (max-width: 1024px) {

    .sponsors-grid {

        grid-template-columns: repeat(3, minmax(0,1fr));

        gap: 1.5rem;

    }

}

@media (max-width: 768px) {

    .sponsors-grid {

        grid-template-columns: repeat(2, minmax(0,1fr));

    }

    .sponsor-card {

        min-height: 140px;

        padding: 1.5rem;

    }

    .sponsor-card img {

        max-height: 70px;

    }

    .sponsorship-contact {

        margin-top: 2rem;

        padding: 1.5rem;

    }

}

@media (max-width: 576px) {

    .sponsors-grid {

        grid-template-columns: 1fr;

        gap: 1.25rem;

    }

    .sponsor-card {

        min-height: 120px;

        padding: 1.25rem;

    }

    .sponsor-card img {

        max-height: 60px;

    }

    .sponsorship-contact {

        padding: 1.25rem;

    }

}


/* ================================
   RESPONSIVE DESIGN
================================ */

@media (max-width: 1100px) {

    .team-members-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

}

@media (max-width: 900px) {

    .speakers-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

}

@media (max-width: 650px) {

    .team-members-grid,
    .speakers-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1rem;
    }

    .speaker-card {
        padding: 1.5rem;
        min-height: 390px;
    }

    .speaker-image-container {
        width: 145px;
        height: 145px;
    }

}

@media (max-width: 420px) {

    .team-members-grid,
    .speakers-grid {
        grid-template-columns: 1fr;
    }

}