/* =========================
   1. RESET
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* =========================
   2. VARIABLES
========================= */
:root {
    --primary: #2E5C8A;
    --secondary: #E07856;
    --accent-green: #7FB539;
    --accent-purple: #B83B6F;
    --light-blue: #4A9FD8;
    --dark: #1a1a1a;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --text: #333333;
    --white: #ffffff;
}

/* =========================
   3. BASE
========================= */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
                 "Ubuntu", "Cantarell", sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--white);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
}

ul {
    padding-left: 1.2rem;
}

/* =========================
   4. LAYOUT
========================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 4rem 2rem;
}

section h2 {
    font-size: 2.4rem;
    color: var(--primary);
    text-align: center;
    margin-bottom: 1rem;
}

.section-intro {
    max-width: 850px;
    margin: 0 auto 2.5rem;
    text-align: center;
    color: #666;
}

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

/* =========================
   5. NAVIGATION
========================= */
nav {
    background: var(--white);
    padding: 0.9rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrap {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-logo {
    height: 3rem;
    width: auto;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-menu li {
    list-style: none;
}

.nav-menu a {
    color: var(--text);
    font-weight: 500;
    white-space: nowrap;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--primary);
    line-height: 1;
}

/* =========================
   6. PAGE HERO
========================= */
.page-hero {
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--primary) 100%);
    color: var(--white);
    text-align: center;
    padding: 4.5rem 2rem;
}

.page-hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.page-hero p {
    max-width: 820px;
    margin: 0 auto;
    font-size: 1.08rem;
    opacity: 0.98;
}

/* =========================
   7. HOME HERO
========================= */
.hero {
    position: relative;
    overflow: hidden;
    min-height: 72vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--primary) 100%);
}

#particles-js {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.hero-title-logo {
    width: 84px;
    height: 84px;
    object-fit: contain;
}

.hero-title {
    color: var(--secondary);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
    font-size: 3rem;
    line-height: 1.2;
    margin: 0;
}

.hero p {
    font-size: 1.15rem;
    margin-bottom: 0.9rem;
}

.hero-date {
    font-size: 1rem;
    opacity: 0.95;
}

/* =========================
   8. BUTTONS
========================= */
.btn {
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
}

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

.btn-secondary:hover {
    background: transparent;
    color: var(--white);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* =========================
   9. CARDS / GENERIC
========================= */
.info-box {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.highlight-box {
    background: var(--secondary);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    text-align: center;
}

.highlight-box a {
    color: var(--white);
    text-decoration: underline;
    font-weight: bold;
}

.cfp-guidelines {
    list-style-position: inside;
}

.cfp-guidelines li {
    margin-bottom: 0.75rem;
}

/* =========================
   10. HOME PAGE
========================= */
.about {
    background: var(--light-gray);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.06rem;
    line-height: 1.8;
    text-align: justify;
}

.about-content p {
    margin-bottom: 1.3rem;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.highlight-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
    border-top: 4px solid var(--secondary);
    text-align: center;
}

.highlight-card h3 {
    color: var(--primary);
    margin-bottom: 0.7rem;
    font-size: 1.15rem;
}

.highlight-card p {
    color: #666;
    font-size: 0.96rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.5rem;
}

.preview-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--secondary);
    transition: all 0.3s ease;
}

.preview-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.preview-card h3 {
    color: var(--primary);
    margin-bottom: 0.8rem;
    font-size: 1.25rem;
}

.preview-card p {
    color: #666;
    margin-bottom: 1rem;
    text-align: justify;
}

.partners {
    background: var(--light-gray);
    text-align: center;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    align-items: center;
    margin-top: 2rem;
}

.partner-item {
    display: flex;
    justify-content: center;
    align-items: center;
}

.partner-item img {
    max-width: 140px;
    transition: transform 0.3s ease;
}

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

.contact-preview {
    background: linear-gradient(180deg, #f8fafc 0%, var(--light-gray) 100%);
}

.contact-box {
    max-width: 850px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
    text-align: center;
    border-top: 5px solid var(--primary);
}

.contact-box p {
    margin-bottom: 0.7rem;
    color: #555;
}

.contact-box a {
    color: var(--primary);
}

.contact-box a:hover {
    text-decoration: underline;
}

/* =========================
   11. CALL FOR PAPERS
========================= */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.track-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--secondary);
    transition: all 0.3s ease;
}

.track-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.track-card h4 {
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.track-focus {
    color: #555;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.track-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.track-tags span {
    background: rgba(46, 92, 138, 0.08);
    color: var(--primary);
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    font-size: 0.9rem;
    line-height: 1.3;
    font-weight: 500;
}

.dates-modern {
    position: relative;
    max-width: 900px;
    margin: 1.5rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    padding-left: 1.2rem;
}

.dates-modern::before {
    content: "";
    position: absolute;
    left: 1.9rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background: var(--medium-gray);
    opacity: 0.8;
}

.date-row {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--white);
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    z-index: 1;
}

.date-row:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
}

.date-left {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    min-width: 0;
}

.date-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(46, 92, 138, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

.date-label {
    font-weight: 600;
    color: var(--primary);
    line-height: 1.4;
}

.date-value {
    font-weight: 600;
    color: #444;
    text-align: right;
    white-space: nowrap;
}

.featured-date {
    border-left: none;
    border-top: 4px solid var(--secondary);
    background: rgba(224, 120, 86, 0.08);
}

.featured-icon {
    background: rgba(224, 120, 86, 0.16);
}

.deadline-note {
    max-width: 900px;
    margin: 1.5rem auto 0.5rem;
    padding: 1.2rem 1.4rem;
    background: linear-gradient(
        90deg,
        rgba(224, 120, 86, 0.12),
        rgba(224, 120, 86, 0.05)
    );
    border-left: 6px solid var(--secondary);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}

.note-header {
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.3rem;
}

.note-item {
    line-height: 1.5;
    color: #444;
    font-size: 0.95rem;
}

.note-item strong {
    color: var(--primary);
}

/* =========================
   12. ACTIVITIES
========================= */
.activities-page {
    background: var(--light-gray);
}

.activities-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 920px;
    margin: 0 auto;
}

.activity-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.masterclass-card {
    border-top: 5px solid var(--secondary);
}

.masterclass-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.masterclass-header h3 {
    color: var(--primary);
    font-size: 1.4rem;
    margin: 0;
}

.masterclass-badge {
    background: rgba(224, 120, 86, 0.12);
    color: var(--secondary);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
}

.masterclass-description {
    color: #666;
    margin-bottom: 1.2rem;
    line-height: 1.6;
    max-width: 780px;
}

.masterclass-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.2rem;
}

.mc-item {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    background: #fafafa;
    border: 1px solid #eee;
    border-radius: 12px;
    padding: 1rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.mc-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08);
}

.mc-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(46, 92, 138, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.05rem;
}

.online-icon {
    background: rgba(184, 59, 111, 0.12);
}

.mc-body {
    min-width: 0;
}

.mc-date {
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.2rem;
}

.mc-venue {
    color: #555;
    font-size: 0.95rem;
    margin: 0;
}

.mc-venue.online {
    color: var(--accent-purple);
    font-weight: 700;
}

.featured-activity-card {
    border-left: 5px solid var(--primary);
}

.featured-activity-card h3 {
    color: var(--primary);
    margin-bottom: 0.9rem;
    font-size: 1.3rem;
}

.featured-activity-card p {
    color: #666;
    margin-bottom: 1rem;
    text-align: justify;
}

.activity-dates {
    display: inline-block;
    background: var(--light-gray);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    color: var(--secondary);
    font-weight: bold;
}

.cta-box {
    max-width: 980px;
    margin: 2rem auto 0;
    background: linear-gradient(
        90deg,
        rgba(224, 120, 86, 0.12),
        rgba(224, 120, 86, 0.05)
    );
    border-left: 6px solid var(--secondary);
    border-radius: 12px;
    padding: 1.6rem;
    text-align: center;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}

.cta-box h3 {
    color: var(--secondary);
    margin-bottom: 0.8rem;
    font-size: 1.35rem;
}

.cta-box p {
    color: #555;
    margin-bottom: 0.8rem;
}

.cta-box a {
    color: var(--primary);
}

.cta-box a:hover {
    text-decoration: underline;
}

.cta-actions {
    margin-top: 1rem;
}

/* =========================
   13. INDUSTRY
========================= */
.overview {
    background: var(--light-gray);
}

.overview-content {
    max-width: 920px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.8;
}

.overview-content p {
    margin-bottom: 1.2rem;
    text-align: justify;
}

.source-note {
    max-width: 920px;
    margin: 1rem auto 0;
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.industry-card {
    background: var(--white);
    padding: 1.75rem;
    border-radius: 12px;
    border-left: 4px solid var(--secondary);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.industry-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.industry-card h3 {
    color: var(--primary);
    margin-bottom: 0.9rem;
    font-size: 1.2rem;
}

.industry-card ul {
    list-style-position: inside;
    color: #555;
}

.industry-card li {
    margin-bottom: 0.45rem;
}

.tag-box {
    max-width: 980px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
    border-top: 5px solid var(--primary);
}

.tag-box h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1rem;
}

.tag-grid span {
    background: rgba(46, 92, 138, 0.08);
    color: var(--primary);
    padding: 0.5rem 0.8rem;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 600;
}

/* =========================
   14. COMMITTEE
========================= */
.committee-page {
    background: var(--light-gray);
}

.committee-group {
    max-width: 1050px;
    margin: 0 auto 2.5rem;
}

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

.committee-group-title {
    color: var(--primary);
    font-size: 1.45rem;
    margin-bottom: 1rem;
    text-align: left;
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
}

.committee-card {
    background: var(--white);
    padding: 1.25rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.25s ease;
}

.committee-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
}

.member-name {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.35rem;
    line-height: 1.4;
}

.member-role {
    font-size: 0.95rem;
    color: var(--secondary);
    line-height: 1.45;
}

/* =========================
   15. CONTACT PAGE
========================= */
.contact-page {
    background: linear-gradient(180deg, #f8fafc 0%, var(--light-gray) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    align-items: stretch;
}

.contact-info,
.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.contact-info {
    border-left: 5px solid var(--primary);
}

.contact-form-wrap {
    display: flex;
    flex-direction: column;
}

.contact-form {
    border-top: 5px solid var(--secondary);
}

.contact-info h3,
.contact-form h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    font-size: 1.35rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid #eee;
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-label {
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.contact-info a {
    color: var(--primary);
}

.contact-info a:hover {
    text-decoration: underline;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

label {
    font-weight: bold;
    color: var(--text);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

input,
textarea,
select {
    padding: 0.75rem;
    border: 2px solid var(--medium-gray);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
    background: var(--white);
    width: 100%;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    margin-top: 0.5rem;
}

#form-success {
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    border-radius: 8px;
    background: var(--secondary);
    color: var(--white);
    text-align: center;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(224, 120, 86, 0.25);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    visibility: hidden;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
}

#form-success.show {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    max-height: 100px;
}

/* =========================
   16. FOOTER
========================= */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

footer p {
    margin-bottom: 0.5rem;
}

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

.footer-links a {
    color: var(--secondary);
    transition: color 0.3s;
}

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

/* =========================
   17. RESPONSIVE
========================= */
@media (max-width: 768px) {
    nav {
        padding: 0.8rem 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        background: var(--white);
        padding: 0.75rem 0;
        border-radius: 10px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        width: 100%;
        padding: 0.9rem 1.25rem;
        font-size: 1rem;
    }

    .nav-menu a:hover {
        background: var(--light-gray);
    }

    .page-hero {
        padding: 3.2rem 1rem;
    }

    .page-hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 3rem 1rem;
        min-height: 66vh;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-title-wrap {
        flex-direction: column;
        gap: 0.75rem;
    }

    .hero-title-logo {
        width: 64px;
        height: 64px;
    }

    section {
        padding: 3rem 1rem;
    }

    section h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .masterclass-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        border-left: none;
        border-top: 5px solid var(--primary);
    }

    .dates-modern {
        padding-left: 0;
    }

    .dates-modern::before {
        display: none;
    }

    .date-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .date-value {
        white-space: normal;
        text-align: left;
        padding-left: 2.7rem;
    }

    .committee-group-title {
        font-size: 1.25rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .page-hero h1,
    .hero-title {
        font-size: 1.7rem;
    }

    section h2 {
        font-size: 1.65rem;
    }

    .track-card,
    .info-box,
    .activity-card,
    .industry-card,
    .tag-box,
    .committee-card,
    .contact-info,
    .contact-form,
    .cta-box,
    .contact-box,
    .preview-card,
    .highlight-card {
        padding: 1.25rem;
    }

    .nav-logo {
        height: 2.5rem;
    }
}

    .call-page section {
        padding: 2.75rem 2rem;
    }

    .call-page .section-intro {
        margin: 0 auto 1.4rem;
    }

    .call-page .tracks-grid {
        gap: 1.2rem;
        margin-top: 1.2rem;
    }

    .call-page .track-card {
        padding: 1.5rem;
    }

    .call-page .info-box {
        padding: 1.5rem;
        margin-bottom: 1.25rem;
    }

    .call-page h2 {
        margin-bottom: 0.8rem;
    }

    /* =========================
    HERO COUNTDOWN
    ========================= */
    .hero-countdown {
        margin: 1.4rem auto 0.8rem;
        max-width: 560px;
    }

    .hero-countdown .countdown-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 0.8rem;
    }

    .hero-countdown .countdown-card {
        background: rgba(255, 255, 255, 0.12);
        backdrop-filter: blur(6px);
        border-radius: 10px;
        padding: 0.85rem 0.6rem;
        border-top: 3px solid var(--secondary);
        box-shadow: none;
    }

    .hero-countdown .countdown-value {
        display: block;
        color: white;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1.1;
        margin-bottom: 0.35rem;
    }

    .hero-countdown .countdown-label {
        display: block;
        color: rgba(255,255,255,0.8);
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.04em;
    }

    .hero-countdown .countdown-note {
        margin-top: 0.8rem;
        color: rgba(255,255,255,0.85);
        font-size: 0.95rem;
    }

    /* =========================
    GENERAL COUNTDOWN
    ========================= */
    .countdown-section {
        background: var(--light-gray);
    }

    .countdown-wrap {
        max-width: 950px;
        margin: 0 auto;
        text-align: center;
    }

    .countdown-title {
        color: var(--primary);
        font-size: 1.6rem;
        margin-bottom: 0.6rem;
    }

    .countdown-subtitle {
        color: #666;
        margin-bottom: 1.5rem;
    }

    .countdown-grid {
        display: grid;
        grid-template-columns: repeat(4, minmax(120px, 1fr));
        gap: 1rem;
        max-width: 700px;
        margin: 0 auto;
    }

    .countdown-card {
        background: var(--white);
        border-radius: 12px;
        padding: 0.85rem 0.6rem;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
        border-top: 3px solid var(--secondary);
    }

    .countdown-value {
        display: block;
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.1;
        margin-bottom: 0.35rem;
    }

    .countdown-label {
        display: block;
        font-size: 0.75rem;
        color: #666;
        text-transform: uppercase;
        letter-spacing: 0.04em;
    }

    .countdown-note {
        margin-top: 1rem;
        color: #555;
        font-size: 0.95rem;
    }

    /* =========================
    PAPER COUNTDOWN URGENCY
    ========================= */
    #papers-countdown.urgent .countdown-card {
        border-top-color: #d64545;
        background: rgba(214, 69, 69, 0.06);
    }

    #papers-countdown.urgent .countdown-value {
        color: #b03030;
    }

    #papers-countdown.urgent .countdown-subtitle,
    #papers-countdown.urgent .countdown-note {
        color: #8f2a2a;
    }

    #papers-countdown.urgent .countdown-title {
        color: #b03030;
    }

    #papers-countdown.urgent {
        animation: pulseDeadline 1.8s ease-in-out infinite;
    }

    @keyframes pulseDeadline {
        0% { box-shadow: 0 0 0 rgba(214, 69, 69, 0); }
        50% { box-shadow: 0 0 24px rgba(214, 69, 69, 0.12); }
        100% { box-shadow: 0 0 0 rgba(214, 69, 69, 0); }
    }

    /* =========================
    COUNTDOWN RESPONSIVE
    ========================= */
    .hero-countdown .countdown-grid,
    .countdown-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 0.6rem;
    }

    .hero-countdown .countdown-card,
    .countdown-card {
        padding: 0.7rem 0.45rem;
    }

    .hero-countdown .countdown-value,
    .countdown-value {
        font-size: 1.2rem;
    }

    .hero-countdown .countdown-label,
    .countdown-label {
        font-size: 0.68rem;
    }

    @media (max-width: 480px) {
        .countdown-value,
        .hero-countdown .countdown-value {
            font-size: 1.35rem;
        }

        .countdown-card,
        .hero-countdown .countdown-card {
            padding: 0.8rem 0.55rem;
        }
    }

        .read-more-container {
            max-width: 900px;
            margin: 0 auto;   /* aligns with paragraph container */
        }

        .industry-intro {
            max-width: 900px;
            margin: 0 auto 0.6rem;
        }

        .read-more-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .read-more-btn {
            display: inline-block;
            margin-top: 0.4rem;
            color: var(--secondary);
            font-weight: 600;
            cursor: pointer;
            font-size: 0.95rem;
        }

        .read-more-btn:hover {
            text-decoration: underline;
        }
        .industry-intro,
        .read-more-content p {
            text-align: justify;
        }

       .industry-card ul {
            list-style: none;
            padding-left: 0;
            margin: 0;
        }

        .industry-card li {
            margin-bottom: 0.6rem;
            padding: 0.6rem 0.8rem;
            border-radius: 8px;
            background: rgba(46, 92, 138, 0.04);
            color: var(--text);
            font-weight: 500;
            transition: all 0.25s ease;
        }

        .industry-card li a {
            color: inherit;
            display: block;
        }

        .industry-card li.link-item:hover {
            color: var(--secondary);
            background: rgba(224, 120, 86, 0.12);
            transform: translateX(3px);
        }

        .site-credit {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #bbb;
        }

        .site-credit a {
            color: var(--secondary);
            font-weight: 500;
            transition: color 0.25s ease;
        }

        .site-credit a:hover {
            color: white;
            text-decoration: underline;
        }

        .member-photo {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            object-position: top;
            border-radius: 10px;
            margin-bottom: 1rem;
            background: var(--light-gray);
        }

        .committee-card {
            text-align: center;
        }

        .member-name {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.35rem;
            line-height: 1.4;
        }

        .member-role {
            font-size: 0.95rem;
            color: var(--secondary);
            line-height: 1.45;
        }
        .social-links {
            margin-top: 1rem;
            display: flex;
            justify-content: center;
            gap: 1rem;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.1rem;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            background: var(--secondary);
            color: white;
            transform: translateY(-3px);
        }
                .promo-video {
            background: var(--light-gray);
            padding: 4rem 2rem;
        }

        .video-wrapper {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
            background: black;
        }

        .video-wrapper video {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }

        .video-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0.7rem;
            background: rgba(0, 0, 0, 0.35);
            color: white;
            cursor: pointer;
            z-index: 2;
            opacity: 1;
            transition: opacity 0.3s ease;
        }

        .video-overlay.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .video-play-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            line-height: 1;
            backdrop-filter: blur(4px);
        }

        .video-overlay-text {
            font-size: 1.05rem;
            font-weight: 600;
            text-align: center;
            padding: 0 1rem;
        }

        @media (max-width: 480px) {
            .video-play-icon {
                width: 58px;
                height: 58px;
                font-size: 1.6rem;
            }

            .video-overlay-text {
                font-size: 0.95rem;
            }
        }