/* ============================================================
   ICIST 2026 – Conference Template
   Inspired by EventUp (uideck.com)
   ============================================================ */

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

:root {
    /* EventUp-inspired palette */
    --primary:       #ff4a67;   /* coral / pink-red — EventUp signature */
    --primary-dark:  #e83a55;
    --primary-light: #ff6b82;
    --accent:        #ff4a67;   /* same coral; EventUp uses single accent */
    --accent-dark:   #e83a55;
    --dark:          #161E26;   /* EventUp footer / deep slate */
    --dark-2:        #212121;   /* EventUp body text dark */
    --gray-50:       #f8fafa;   /* EventUp section alt */
    --gray-100:      #f3f4f3;
    --gray-200:      #E2E8ED;   /* EventUp border color */
    --gray-400:      #bababa;
    --gray-600:      #777777;
    --gray-800:      #2f323c;
    --white:         #FFFFFF;
    --text:          #212121;
    --shadow-sm:     0 2px 8px rgba(0,0,0,0.06);
    --shadow:        0 8px 24px rgba(255,74,103,0.18);
    --shadow-lg:     0 20px 60px rgba(0,0,0,0.12);
    --radius:        6px;
    --radius-lg:     10px;
    --transition:    all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--white);
    overflow-x: hidden;
}

/* ─── Layout ─── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 100px 0;
}

/* ─── Typography helpers ─── */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,74,103,0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--dark);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--gray-600);
    line-height: 1.75;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-subtitle {
    max-width: 580px;
    margin: 0 auto;
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: white;
}
.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,74,103,0.35);
}

.btn-outline {
    background: transparent;
    border-color: rgba(255,255,255,0.5);
    color: white;
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
}

.btn-primary-v {
    background: var(--primary);
    color: white;
}
.btn-primary-v:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,74,103,0.35);
}

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

/* ════════════════════════════════════════════
   NAVBAR
════════════════════════════════════════════ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: white;
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo-text {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.5px;
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
}

/* Brand colors: ICIST blue + 2026 red (matches localhost) */
.brand-icist {
    color: #4A6BE6;
}

.brand-year {
    color: #FF6B6B;
}

.navbar.scrolled .brand-icist {
    color: #0A227E;
}

.navbar.scrolled .brand-year {
    color: #A7261C;
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-links > li > a {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 6px;
    transition: var(--transition);
}

.navbar.scrolled .nav-links > li > a {
    color: var(--gray-600);
}

.nav-links > li > a:hover {
    color: white;
    background: rgba(255,255,255,0.12);
}

.navbar.scrolled .nav-links > li > a:hover {
    color: var(--primary);
    background: rgba(255,74,103,0.08);
}

/* Dropdown */
.nav-item {
    position: relative;
}

.has-dropdown > a::after {
    content: '▾';
    font-size: 10px;
    opacity: 0.7;
}

.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100%);
    left: 0;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 200px;
    list-style: none;
    border: 1px solid var(--gray-100);
}

.nav-item:hover .nav-dropdown {
    display: block;
}

.nav-dropdown li a {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600) !important;
    padding: 9px 14px;
    border-radius: 6px;
    transition: var(--transition);
    text-decoration: none;
    background: transparent !important;
}

.nav-dropdown li a:hover {
    color: var(--primary) !important;
    background: rgba(255,74,103,0.06) !important;
}

/* Dropdown divider */
.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 6px 8px;
    padding: 0 !important;
    list-style: none;
}

.dropdown-divider:hover {
    background: var(--gray-200) !important;
}

/* Submenu (nested dropdown under Committee) */
.nav-subitem.has-subdropdown {
    position: relative;
}

.subdropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    padding: 9px 14px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.subdropdown-toggle:hover {
    color: var(--primary);
    background: rgba(255,74,103,0.06);
}

.subdropdown-toggle .sub-caret {
    font-size: 10px;
    opacity: 0.6;
    transition: transform 0.2s ease;
}

.nav-subdropdown {
    display: none;
    position: absolute;
    top: -8px;
    left: calc(100%);
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 240px;
    list-style: none;
    border: 1px solid var(--gray-100);
}

.nav-subitem.has-subdropdown:hover .nav-subdropdown,
.nav-subitem.has-subdropdown.is-open .nav-subdropdown {
    display: block;
}

.nav-subitem.has-subdropdown:hover .sub-caret {
    transform: translateX(2px);
}

.nav-subdropdown li a {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    padding: 9px 14px;
    border-radius: 6px;
    transition: var(--transition);
    text-decoration: none;
}

.nav-subdropdown li a:hover {
    color: var(--primary);
    background: rgba(255,74,103,0.06);
}

/* sup tag in dropdown */
.nav-dropdown sup {
    font-size: 9px;
    opacity: 0.65;
    font-weight: 400;
}

/* CTA button in nav */
.nav-cta {
    background: var(--accent) !important;
    color: white !important;
    padding: 9px 20px !important;
    border-radius: 8px !important;
}
.nav-cta:hover {
    background: var(--accent-dark) !important;
    color: white !important;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: var(--transition);
}

.navbar.scrolled .hamburger span {
    background: var(--dark);
}

/* Mobile overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--dark);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.mobile-menu-overlay.open {
    display: flex;
}

.mobile-menu-overlay {
    overflow-y: auto;
    padding: 60px 20px 40px;
    justify-content: flex-start;
}

.mobile-menu-overlay a {
    font-size: 16px;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    padding: 9px 24px;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-overlay a:hover {
    color: white;
    background: rgba(255,255,255,0.08);
}

.mobile-menu-group {
    font-size: 11px;
    font-weight: 800;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 18px 24px 4px;
}

.mobile-menu-group:first-of-type {
    padding-top: 0;
}

.mobile-cta {
    margin-top: 24px;
    background: var(--accent);
    color: white !important;
    font-weight: 700 !important;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 14px !important;
}

.mobile-cta:hover {
    background: var(--accent-dark) !important;
}

.mobile-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
}

/* ════════════════════════════════════════════
   HERO
════════════════════════════════════════════ */
.hero {
    min-height: 100vh;
  background-image: 
    linear-gradient(rgba(40, 40, 40, 0.65), rgba(40, 40, 40, 0.65)),
    url("/assets/bg.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    padding: 140px 0 100px;
    overflow: hidden;
}

.hero-blob-1 {
    position: absolute;
    top: -200px;
    right: -150px;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,74,103,0.25) 0%, transparent 65%);
    pointer-events: none;
}

.hero-blob-2 {
    position: absolute;
    bottom: -200px;
    left: -100px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,74,103,0.15) 0%, transparent 65%);
    pointer-events: none;
}

.hero-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    color: rgba(255,255,255,0.9);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 100px;
    margin-bottom: 28px;
    letter-spacing: 0.04em;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: #4ADE80;
    border-radius: 50%;
    flex-shrink: 0;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
    font-size: clamp(56px, 9vw, 72px);
    font-weight: 900;
    color: white;
    line-height: 1;
    letter-spacing: -3px;
    margin-bottom: 20px;
}

.hero h1 .accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
    line-height: 1.55;
}

.hero-theme {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    font-style: italic;
    margin-bottom: 40px;
    padding-left: 14px;
    border-left: 3px solid var(--accent);
    line-height: 1.6;
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 40px;
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.75);
    font-size: 15px;
}

.hero-meta-item svg {
    flex-shrink: 0;
    opacity: 0.65;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* Countdown / right side */
.hero-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.countdown-label {
    font-size: 16px;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-weight: 600;
    text-align: center;
}

.countdown {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    width: 100%;
}

.countdown-item {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 20px 10px;
    text-align: center;
}

.countdown-item .number {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 900;
    color: white;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.countdown-item .label {
    font-size: 10px;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-top: 6px;
    font-weight: 600;
}

/* Conference card on right */
.hero-info-card {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 28px;
    width: 100%;
}

.hero-info-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.hero-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: 13px;
}

.hero-info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.hero-info-row .key {
    color: rgba(255,255,255,0.45);
    font-weight: 500;
}

.hero-info-row .val {
    color: white;
    font-weight: 600;
    text-align: right;
}

/* ════════════════════════════════════════════
   ABOUT
════════════════════════════════════════════ */
.about {
    background: white;
    overflow: visible;
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    position: relative;
    padding: 20px 40px 20px 0;
}

.about-main-card {
    width: 100%;
    height: 420px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--dark-2) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    color: white;
    text-align: center;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.about-main-card::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
}

.about-main-card::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255,255,255,0.04);
}

.about-main-icon {
    font-size: 56px;
    position: relative;
    z-index: 1;
}

.about-main-card h3 {
    font-size: 26px;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.about-main-card p {
    font-size: 14px;
    opacity: 0.7;
    position: relative;
    z-index: 1;
}

.about-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    z-index: 1;
    margin-top: 4px;
}

.about-tags span {
    background: rgba(255,255,255,0.12);
    padding: 5px 14px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

.about-floating-card {
    position: absolute;
    background: white;
    border-radius: var(--radius);
    padding: 16px 22px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.14);
    border: 1px solid var(--gray-100);
}

.about-floating-card.fc-1 {
    bottom: 48px;
    left: -20px;
}

.about-floating-card.fc-2 {
    top: 48px;
    right: 0;
}

.fc-value {
    font-size: 30px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.fc-label {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 3px;
    font-weight: 500;
}

/* About content */
.about-features {
    list-style: none;
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.about-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

.check-icon {
    width: 22px;
    height: 22px;
    background: rgba(255,74,103,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--primary);
    margin-top: 2px;
}

.about-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 32px;
}

.info-tile {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: 10px;
    border: 1px solid var(--gray-100);
}

.info-tile-icon {
    width: 38px;
    height: 38px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
}

.info-tile strong {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}

.info-tile span {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.4;
}

/* ════════════════════════════════════════════
   STATS BANNER
════════════════════════════════════════════ */
.stats-banner {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
    padding: 70px 0;
    position: relative;
    overflow: hidden;
}

.stats-banner::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,74,103,0.2) 0%, transparent 70%);
}

.stats-banner .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

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

.stat-number {
    font-size: clamp(38px, 5vw, 62px);
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-number em {
    color: var(--accent);
    font-style: normal;
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* ════════════════════════════════════════════
   WHY JOIN
════════════════════════════════════════════ */
.why-join {
    background: var(--gray-50);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.why-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.why-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.why-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
    border-color: transparent;
}

.why-card:hover::after {
    transform: scaleX(1);
}

.why-num {
    font-size: 52px;
    font-weight: 900;
    color: rgba(255,74,103,0.07);
    line-height: 1;
    margin-bottom: 12px;
}

.why-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(255,74,103,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.why-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.why-card p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ════════════════════════════════════════════
   TOPICS / CALL FOR PAPERS
════════════════════════════════════════════ */
.topics {
    background: white;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.topic-card {
    padding: 30px;
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    cursor: default;
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.topic-icon {
    font-size: 34px;
    display: block;
    margin-bottom: 14px;
}

.topic-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.topic-card p {
    font-size: 13px;
    opacity: 0.75;
    line-height: 1.65;
}

.topic-card.c-purple { background: linear-gradient(135deg, #EDE9FE, #DDD6FE); color: #5B21B6; }
.topic-card.c-blue   { background: linear-gradient(135deg, #DBEAFE, #BFDBFE); color: #1D4ED8; }
.topic-card.c-green  { background: linear-gradient(135deg, #DCFCE7, #BBF7D0); color: #166534; }
.topic-card.c-orange { background: linear-gradient(135deg, #FEF3C7, #FDE68A); color: #92400E; }
.topic-card.c-red    { background: linear-gradient(135deg, #FFE4E6, #FECDD3); color: #9F1239; }
.topic-card.c-teal   { background: linear-gradient(135deg, #CCFBF1, #99F6E4); color: #134E4A; }

.topics-cta {
    text-align: center;
    margin-top: 48px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ════════════════════════════════════════════
   SPEAKERS
════════════════════════════════════════════ */
.speakers {
    background: var(--gray-50);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 0 auto;
}

.speaker-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.speaker-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.speaker-photo {
    height: 230px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.speaker-initials {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    font-weight: 900;
    color: white;
    letter-spacing: -1px;
    border: 3px solid rgba(255,255,255,0.25);
}

.keynote-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent);
    color: white;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.speaker-body {
    padding: 24px;
}

.speaker-name {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
}

.speaker-role {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 3px;
}

.speaker-affil {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 18px;
}

.speaker-socials {
    display: flex;
    gap: 8px;
}

.speaker-socials a {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}

.speaker-socials a:hover {
    background: var(--primary);
    color: white;
}

/* ════════════════════════════════════════════
   IMPORTANT DATES
════════════════════════════════════════════ */
.dates {
    background: white;
}

.dates .container > .section-header {
    margin-bottom: 56px;
}

.dates-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: var(--gray-200);
}

.tl-item {
    display: flex;
    gap: 20px;
    margin-bottom: 28px;
    position: relative;
}

.tl-item:last-child {
    margin-bottom: 0;
}

.tl-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.tl-item.is-final .tl-dot {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.tl-body {
    flex: 1;
    padding-top: 6px;
}

.tl-date {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 3px;
}

.tl-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 3px;
}

.tl-desc {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.55;
}

/* Day program */
.program-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.program-head {
    background: var(--primary);
    padding: 22px 28px;
    color: white;
}

.program-head h3 {
    font-size: 18px;
    font-weight: 700;
}

.program-head p {
    font-size: 13px;
    opacity: 0.65;
    margin-top: 4px;
}

.program-list {
    padding: 12px;
}

.program-row {
    display: flex;
    gap: 16px;
    background: white;
    padding: 14px 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    align-items: flex-start;
    border: 1px solid var(--gray-100);
}

.program-row:last-child {
    margin-bottom: 0;
}

.p-time {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    min-width: 110px;
    padding-top: 2px;
    flex-shrink: 0;
}

.p-body h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}

.p-body p {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.5;
}

.edas-notice {
    margin-top: 20px;
    padding: 18px 20px;
    background: rgba(255,74,103,0.06);
    border-radius: 10px;
    border-left: 4px solid var(--primary);
}

.edas-notice strong {
    display: block;
    font-size: 14px;
    color: var(--dark);
    margin-bottom: 3px;
}

.edas-notice p {
    font-size: 13px;
    color: var(--gray-600);
}

.edas-notice a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.edas-notice a:hover {
    text-decoration: underline;
}

/* ════════════════════════════════════════════
   PUBLICATIONS
════════════════════════════════════════════ */
.publications {
    background: var(--gray-50);
}

.pub-tabs-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 36px;
    border-bottom: 2px solid var(--gray-200);
}

.pub-tab {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
}

.pub-tab:hover {
    color: var(--primary);
}

.pub-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.pub-panel {
    display: none;
}

.pub-panel.active {
    display: block;
}

.pub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.pub-card {
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pub-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
    border-color: var(--primary);
}

/* Cover image — extends to card edges via negative margins */
.pub-cover {
    margin: -24px -24px 18px;
    aspect-ratio: 16 / 9;
    background: var(--gray-50);
    overflow: hidden;
}

.pub-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.pub-card:hover .pub-cover img {
    transform: scale(1.04);
}

/* Badge group */
.pub-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 4px;
}

.pub-badge {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.pub-badge.scopus { background: #DBEAFE; color: #1D4ED8; }
.pub-badge.sinta  { background: #DCFCE7; color: #166534; }
.pub-badge.doi    { background: #FEF3C7; color: #92400E; }

.pub-name {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 6px;
    margin-top: 12px;
}

.pub-longname {
    font-size: 12px;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.55;
    min-height: 36px;
}

.pub-fee {
    font-size: 22px;
    font-weight: 900;
    color: var(--primary);
}

.pub-fee small {
    font-size: 13px;
    font-weight: 400;
    color: var(--gray-400);
}

/* Action row — sticks to bottom of card so cards align in the grid */
.pub-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: 18px;
}

.pub-btn {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    flex: 1 1 auto;
    justify-content: center;
    min-width: 0;
}

.pub-btn svg {
    flex-shrink: 0;
}

.pub-cta {
    text-align: center;
    margin-top: 48px;
}

.pub-cta p {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 20px;
}

.pub-cta p strong {
    color: var(--dark);
}

/* ════════════════════════════════════════════
   VENUE
════════════════════════════════════════════ */
.venue {
    background: white;
}

.venue .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.venue-visual {
    height: 440px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 48px;
    color: white;
    position: relative;
    overflow: hidden;
}

.venue-visual::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(255,74,103,0.25);
}

.venue-icon {
    font-size: 64px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.venue-visual h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.venue-visual address {
    font-size: 14px;
    font-style: normal;
    opacity: 0.65;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.venue-map-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    padding: 10px 20px;
    border: 1px solid rgba(255,74,103,0.5);
    border-radius: 8px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.venue-map-btn:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.venue-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 28px;
}

.venue-row {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.venue-row-icon {
    width: 42px;
    height: 42px;
    background: rgba(255,74,103,0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.venue-row strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 3px;
}

.venue-row span {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ════════════════════════════════════════════
   COMMITTEE
════════════════════════════════════════════ */
.committee {
    background: var(--gray-50);
}

.committee-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.committee-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--gray-200);
}

.committee-role {
    font-size: 11px;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.committee-role::before {
    content: '';
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
}

.committee-members {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.committee-member {
    display: flex;
    align-items: center;
    gap: 12px;
}

.committee-member-info {
    flex: 1;
    min-width: 0;
}

.committee-member strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 2px;
}

.committee-member span {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.4;
}

.committee-avatar {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    color: white;
    letter-spacing: 0.5px;
    border: 2px solid var(--gray-200);
}

.committee-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ════════════════════════════════════════════
   SPONSORS
════════════════════════════════════════════ */
.sponsors {
    background: white;
    padding: 80px 0;
}

.sponsors-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
    margin-top: 0;
}

.sponsor-chip {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 18px 32px;
    font-size: 15px;
    font-weight: 700;
    color: var(--gray-600);
    transition: var(--transition);
    min-width: 150px;
    text-align: center;
}

.sponsor-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ════════════════════════════════════════════
   CONTACT
════════════════════════════════════════════ */
.contact {
    background: var(--gray-50);
}

.contact .container {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
    align-items: start;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 14px;
}

.contact-info > p {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 36px;
    line-height: 1.7;
}

.contact-row {
    display: flex;
    gap: 16px;
    margin-bottom: 22px;
    align-items: flex-start;
}

.contact-row-icon {
    width: 46px;
    height: 46px;
    background: rgba(255,74,103,0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    flex-shrink: 0;
}

.contact-row strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 3px;
}

.contact-row span,
.contact-row a {
    font-size: 14px;
    color: var(--gray-600);
    text-decoration: none;
}

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

/* Form */
.contact-form {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 7px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: white;
    transition: var(--transition);
    outline: none;
    appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,74,103,0.1);
}

.form-group textarea {
    height: 110px;
    resize: vertical;
    line-height: 1.6;
}

.form-submit {
    width: 100%;
    justify-content: center;
    padding: 14px;
    font-size: 15px;
}

/* ════════════════════════════════════════════
   FOOTER (compact — matches localhost)
════════════════════════════════════════════ */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 50px 0 0;
}

.footer-shell {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    padding-bottom: 40px;
    flex-wrap: wrap;
}

.footer-brand-block {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-brand-name {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.5px;
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
}

.footer-brand-name .brand-icist {
    color: #6F8CF0;
}

.footer-brand-name .brand-year {
    color: #FF8585;
}

.footer-brand-tagline {
    font-size: 14px;
    color: white;
    margin: 0;
    line-height: 1.55;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 22px;
    align-items: center;
}

.footer-nav a {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.07);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    margin: 0;
}

.footer-bottom a {
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-bottom a:hover {
    color: white;
}

/* ════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-right {
        display: none;
    }

    .about .container,
    .venue .container,
    .contact .container {
        grid-template-columns: 1fr;
        gap: 52px;
    }

    .footer-shell {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .stats-banner .container {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .committee-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    section { padding: 72px 0; }

    .nav-links { display: none; }
    .hamburger { display: flex; }

    .hero { padding: 120px 0 80px; }
    .hero h1 { letter-spacing: -2px; }

    .why-grid,
    .topics-grid,
    .pub-grid,
    .committee-grid {
        grid-template-columns: 1fr;
    }

    .speakers-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .dates-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .about-floating-card {
        display: none;
    }
}

@media (max-width: 480px) {
    .countdown {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .countdown-item {
        padding: 14px 6px;
    }

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

    .btn {
        width: 100%;
        justify-content: center;
    }

    .stats-banner .container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ════════════════════════════════════════════
   INNER PAGE HERO + CONTENT (Laravel views)
════════════════════════════════════════════ */
.page-hero {
    background: linear-gradient(135deg, #161E26 0%, #1f2933 45%, #252D37 75%, #161E26 100%);
    position: relative;
    padding: 160px 0 80px;
    overflow: hidden;
}

.page-hero .container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
}

.page-hero .hero-badge {
    margin-bottom: 20px;
}

.page-hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 900;
    color: white;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.page-hero-summary {
    font-size: clamp(15px, 2vw, 18px);
    color: rgba(255,255,255,0.7);
    line-height: 1.65;
    max-width: 620px;
    margin: 0 auto;
}

.page-content {
    padding: 80px 0 100px;
    background: white;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 56px;
    align-items: start;
}

.content-grid-single {
    grid-template-columns: 1fr;
    max-width: 820px;
    margin: 0 auto;
}

.content-body h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    margin: 0 0 14px;
    line-height: 1.25;
}

.content-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin: 32px 0 14px;
}

.content-body p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.75;
    margin-bottom: 14px;
}

.content-body a {
    color: var(--primary);
    text-decoration: none;
}

.content-body a:hover {
    text-decoration: underline;
}

.content-prose p { margin-bottom: 14px; color: var(--gray-600); line-height: 1.75; }
.content-prose strong { color: var(--dark); }
.content-prose ul, .content-prose ol { padding-left: 24px; margin-bottom: 16px; color: var(--gray-600); }
.content-prose li { margin-bottom: 6px; line-height: 1.65; }

.content-quote {
    margin: 24px 0;
    padding: 20px 24px;
    background: rgba(255,74,103,0.06);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    font-style: italic;
    color: var(--dark);
    font-size: 16px;
    line-height: 1.6;
}

.content-quote cite {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--gray-600);
    font-style: normal;
}

.content-features {
    list-style: none;
    margin: 16px 0 24px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.content-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

.content-cta-row {
    margin-top: 36px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.content-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 24px;
}

.sidebar-card h4 {
    font-size: 12px;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.sidebar-list {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 8px 12px;
    margin: 0;
    font-size: 13px;
}

.sidebar-list dt {
    color: var(--gray-600);
    font-weight: 500;
}

.sidebar-list dd {
    color: var(--dark);
    font-weight: 600;
    margin: 0;
}

.sidebar-list dd a {
    color: var(--primary);
    text-decoration: none;
}

.sidebar-cta {
    background: linear-gradient(135deg, rgba(255,74,103,0.06), rgba(255,74,103,0.02));
    border-color: rgba(255,74,103,0.18);
}

.sidebar-cta p {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 14px;
    line-height: 1.65;
}

.sidebar-prose {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.7;
}

.sidebar-prose p { margin-bottom: 10px; }

.empty-state {
    text-align: center;
    padding: 60px 20px;
    font-size: 15px;
    color: var(--gray-600);
}

/* ════════════════════════════════════════════
   PAMPHLET PAGE
════════════════════════════════════════════ */
.pamphlet-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.pamphlet-viewer {
    width: 100%;
    /* A4 portrait ratio: 1 : √2 ≈ 1 : 1.4142 */
    aspect-ratio: 1 / 1.4142;
    max-width: 860px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    background: var(--gray-50);
}

.pamphlet-viewer iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.pamphlet-image-viewer {
    max-width: 860px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    background: var(--gray-50);
}

.pamphlet-image-viewer img {
    width: 100%;
    height: auto;
    display: block;
}

.empty-state-box {
    text-align: center;
    padding: 80px 20px;
}

.empty-state-icon {
    font-size: 56px;
    margin-bottom: 16px;
    line-height: 1;
}

.speakers-grid-full {
    max-width: none;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.pub-grid-full {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.speaker-detail-header {
    display: flex;
    gap: 28px;
    align-items: center;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.speaker-detail-photo {
    width: 140px;
    height: 140px;
    border-radius: 14px;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-detail-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.speaker-detail-photo .speaker-initials {
    width: 90px;
    height: 90px;
    font-size: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: 3px solid rgba(255,255,255,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 900;
    letter-spacing: -1px;
}

.tl-item.is-past .tl-dot {
    background: #10B981;
    border-color: #10B981;
    color: white;
}

.check-icon {
    width: 22px;
    height: 22px;
    background: rgba(255,74,103,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--primary);
    margin-top: 2px;
    font-weight: 700;
}

@media (max-width: 900px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .content-sidebar {
        position: static;
    }
    .page-hero { padding: 130px 0 60px; }
}

#background-credit{
    margin-top: 10px;
    margin-bottom: -15px;
    margin-right: -5px; 
    text-align: right; 
    color: rgba(225,225,225,0.5); 
    padding: 5px; 
    font-size: 8px;
    letter-spacing: 1px;
}
#background-credit a{
    color: #ddd;
    text-decoration: underline;
}
#background-credit a:hover{
    color: #fff;
    text-decoration: underline;
}