/* ===================================
   CSS Variables
   =================================== */
:root {
    /* Colors - Gradient Theme */
    --color-primary: #E91E8C;        /* Magenta */
    --color-primary-dark: #9D4EDD;   /* Purple */
    --color-primary-light: #4CC9F0;  /* Cyan */
    --color-accent: #E91E8C;         /* Magenta */
    --color-accent-light: #FFE6F0;

    --color-white: #FFFFFF;
    --color-light-gray: #F8F9FA;
    --color-medium-gray: #6C757D;
    --color-dark-gray: #2D3748;
    --color-black: #1A202C;

    /* Typography */
    --font-primary: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;

    --font-size-h1: 56px;
    --font-size-h2: 42px;
    --font-size-h3: 28px;
    --font-size-body: 17px;
    --font-size-small: 15px;

    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 800;

    /* Spacing */
    --section-margin: 120px;
    --container-max-width: 1280px;
    --container-padding: 24px;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    --shadow-colored: 0 8px 32px rgba(233, 30, 140, 0.2);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-default: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-body);
    line-height: 1.7;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
    padding-top: 20px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--color-black);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-default);
}

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

ul {
    list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--section-margin) 0;
    scroll-margin-top: 100px;
}

.section__title {
    font-size: var(--font-size-h2);
    font-family: var(--font-display);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
    font-weight: var(--font-weight-black);
    letter-spacing: -0.02em;
}

.section__subtitle {
    text-align: center;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-2xl);
    font-size: 19px;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.01em;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-default);
    border: none;
    font-size: var(--font-size-body);
    position: relative;
    overflow: hidden;
    font-family: var(--font-display);
    letter-spacing: 0.02em;
    background: none;
    text-decoration: none;
}

button.btn {
    -webkit-appearance: none;
    appearance: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transition: opacity var(--transition-default);
}

.btn:hover::before {
    opacity: 1;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-primary-light) 100%);
    background-size: 200% 200%;
    color: var(--color-white);
    box-shadow: var(--shadow-colored);
}

.btn--primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(233, 30, 140, 0.5);
    background-position: right center;
}

.btn--primary:active {
    transform: translateY(-1px) scale(1.01);
}

.btn--large {
    padding: 20px 56px;
    font-size: 19px;
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 23px;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-default);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav__logo {
    font-family: var(--font-secondary);
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-semibold);
    position: relative;
    padding: 8px 0;
    transition: color var(--transition-default);
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-primary-light) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-default);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__link.active {
    color: var(--color-primary);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-dark-gray);
    border-radius: 2px;
    transition: var(--transition-default);
}

/* ===================================
   Hero Section - Premium
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/venue/bg.png') center center / cover no-repeat;
    color: var(--color-white);
    position: relative;
    overflow: hidden;
    padding-top: 70px;
    padding-bottom: 80px;
    margin-bottom: -80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.08) 0%, rgba(157, 78, 221, 0.08) 50%, rgba(76, 201, 240, 0.08) 100%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

.hero__container {
    position: relative;
    z-index: 1;
}

.hero__content {
    text-align: center;
}

.hero__logo {
    margin-bottom: 3rem;
}

.hero__logo-image {
    max-width: 800px;
    width: 100%;
    height: auto;
    margin: 0 auto;
    display: block;
    filter: drop-shadow(0 10px 40px rgba(255, 255, 255, 0.3));
    animation: floatLogo 6s ease-in-out infinite;
}

@keyframes floatLogo {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero__info {
    margin-bottom: 2.5rem;
}

.hero__content .btn {
    margin-bottom: 20px;
}

.hero__date,
.hero__venue {
    font-size: 24px;
    margin: 0.5rem 0;
    font-weight: var(--font-weight-semibold);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* ===================================
   Photo Marquee Section
   =================================== */
.photo-marquee {
    overflow: hidden;
    background: var(--color-light-gray);
    padding: var(--spacing-lg) 0;
}

.marquee-row {
    overflow: hidden;
    width: 100%;
}

.marquee-row--top {
    margin-bottom: var(--spacing-sm);
}

.marquee-track {
    display: flex;
    gap: var(--spacing-sm);
    animation: marquee-scroll 40s linear infinite;
    width: max-content;
}

.marquee-track--reverse {
    animation: marquee-scroll-reverse 45s linear infinite;
}

.marquee-item {
    flex-shrink: 0;
    width: 280px;
    height: 180px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.marquee-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@keyframes marquee-scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes marquee-scroll-reverse {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

/* ===================================
   About Section - Clean Design
   =================================== */
.about {
    background-color: var(--color-white);
    position: relative;
    z-index: 1;
}

.about__header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
}

.section__lead {
    font-size: 20px;
    line-height: 1.7;
    color: var(--color-medium-gray);
    margin-top: var(--spacing-md);
    font-weight: var(--font-weight-regular);
}

.about__compact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 900px;
    margin: 0 auto;
    align-items: center;
}

.about__image-compact {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about__venue-photo {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.about__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about__detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.about__label {
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
}

.about__value {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
}

.about__value--free {
    color: var(--color-primary);
}

.about__primary {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.event-detail {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-default);
    box-shadow: var(--shadow-sm);
}

.event-detail:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(233, 30, 140, 0.15);
    transform: translateX(4px);
}

.event-detail__icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.1) 0%, rgba(157, 78, 221, 0.1) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.event-detail__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.event-detail__label {
    font-size: 13px;
    font-weight: var(--font-weight-bold);
    color: var(--color-medium-gray);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.event-detail__value {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.event-detail__value > span:first-child,
.event-detail__value > time {
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
    line-height: 1.4;
}

.event-detail__sub {
    font-size: 15px;
    color: var(--color-medium-gray);
}

.event-detail__free {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about__secondary {
    background-color: var(--color-light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-item__label {
    font-size: 13px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-medium-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-item__value {
    font-size: 16px;
    color: var(--color-dark-gray);
    line-height: 1.6;
}

/* ===================================
   Features Section - Clean Design
   =================================== */
.features {
    background-color: var(--color-light-gray);
}

.features__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.features__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
}

.feature-item {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-default);
    border-left: 4px solid transparent;
}

.feature-item:hover {
    border-left-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.feature-item__number {
    font-size: 48px;
    font-weight: var(--font-weight-black);
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 100px;
}

.feature-item__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-item__title {
    font-size: 22px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
}

.feature-item__text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-medium-gray);
}

.features__cta {
    max-width: 900px;
    margin: 0 auto;
}

.cta-box {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-light-gray);
    transition: all var(--transition-default);
}

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

.cta-box__title {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.cta-box__text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-medium-gray);
}

/* ===================================
   Venue Section - Clean Design
   =================================== */
.venue {
    background-color: var(--color-white);
}

.venue__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1100px;
    margin: 0 auto;
}

.venue__info h3 {
    font-size: 26px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.venue__address-full {
    font-size: 15px;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-sm);
}

.venue__address {
    margin-bottom: var(--spacing-xl);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-medium-gray);
}

.venue__address strong {
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-semibold);
}

.venue__access {
    margin-bottom: var(--spacing-xl);
}

.venue__access h4 {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.venue__access-list {
    list-style: none;
}

.venue__access-list li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.venue__access-list strong {
    color: var(--color-dark-gray);
}

.venue__line {
    font-size: 14px;
    color: var(--color-medium-gray);
}

.venue__facilities h4 {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.venue__facilities ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.venue__facilities li {
    padding-left: var(--spacing-md);
    color: var(--color-medium-gray);
    position: relative;
    line-height: 1.6;
}

.venue__facilities li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.venue__map {
    background-color: var(--color-light-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-md);
}

.venue__map iframe {
    display: block;
    width: 100%;
    height: 400px;
    border: none;
    border-radius: var(--radius-lg);
}

.venue__map-link {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    text-align: center;
    border-top: 1px solid var(--color-light-gray);
}

.venue__map-link a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    transition: color var(--transition-default);
}

.venue__map-link a:hover {
    color: var(--color-primary-dark);
}

.venue__map-link svg {
    flex-shrink: 0;
}

.map-placeholder {
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-light-gray);
    color: var(--color-medium-gray);
    font-size: 16px;
    font-weight: var(--font-weight-medium);
}

/* ===================================
   Results Section - Clean Design
   =================================== */
.results {
    background-color: var(--color-light-gray);
}

.results__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-default);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(233, 30, 140, 0.1);
}

.stat-card__number {
    font-size: 56px;
    font-weight: var(--font-weight-black);
    color: var(--color-black);
    font-family: var(--font-display);
    line-height: 1;
}

.stat-card__label {
    color: var(--color-medium-gray);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card__bar {
    width: 100%;
    height: 6px;
    background-color: var(--color-light-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.stat-card__progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
}

.stat-card.visible .stat-card__progress {
    width: var(--progress-width);
}

.results__companies {
    background-color: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    max-width: 1000px;
    margin: 0 auto;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.results__companies-title {
    text-align: center;
    font-size: 22px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xl);
    color: var(--color-black);
}

.companies-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.companies-column h4 {
    font-size: 14px;
    margin-bottom: var(--spacing-md);
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.companies-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.companies-column li {
    color: var(--color-medium-gray);
    font-size: 15px;
    line-height: 1.5;
}

/* ===================================
   Media Info Section
   =================================== */
.media-info {
    background-color: var(--color-white);
}

.media-info__description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-dark-gray);
}

.media-info__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.media-stat {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-primary-light) 100%);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    color: var(--color-white);
}

.media-stat__number {
    font-size: 42px;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
    font-family: var(--font-secondary);
}

.media-stat__label {
    font-size: 16px;
}

/* ===================================
   Sponsors Section
   =================================== */
.sponsors {
    background-color: var(--color-light-gray);
}

.sponsors__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.sponsor-logo {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 140px;
    transition: all var(--transition-default);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.sponsor-logo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.05) 0%, rgba(157, 78, 221, 0.05) 50%, rgba(76, 201, 240, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-default);
}

.sponsor-logo:hover::before {
    opacity: 1;
}

.sponsor-logo:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: rgba(233, 30, 140, 0.1);
}

.sponsor-placeholder {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--color-medium-gray);
    text-align: center;
}

/* ===================================
   CTA Section - Premium
   =================================== */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-primary-light) 100%);
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta__content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.cta__badge {
    display: inline-block;
    padding: 8px 20px;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta__title {
    font-size: 48px;
    font-weight: var(--font-weight-black);
    margin: 0;
    letter-spacing: -0.02em;
}

.cta__text {
    font-size: 19px;
    line-height: 1.7;
    opacity: 0.95;
    margin: 0;
}

.cta__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.cta__note {
    font-size: 14px;
    opacity: 0.8;
    margin: 0;
}

.cta__features {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-md);
}

.cta__feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 15px;
    opacity: 0.9;
}

.cta__feature svg {
    flex-shrink: 0;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: #000000;
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__title {
    font-size: 16px;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__info p,
.footer__contact p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links ul li {
    margin-bottom: 0;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-default);
}

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

.footer__bottom {
    text-align: center;
    padding-top: 0;
}

.footer__bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-small);
}

/* ===================================
   Premium Animation Classes
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for grid items */
.info-card, .feature-card, .stat-card {
    animation: fadeInScale 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Pulse animation for important elements */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Gradient animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Shimmer effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ===================================
   Speakers Section
   =================================== */
.speakers {
    background-color: var(--color-white);
}

.speakers__coming-soon {
    text-align: center;
    padding: 80px var(--spacing-xl);
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.05) 0%, rgba(157, 78, 221, 0.05) 100%);
    border-radius: var(--radius-xl);
    max-width: 600px;
    margin: 0 auto;
}

.coming-soon__text {
    font-size: 48px;
    font-weight: var(--font-weight-black);
    font-family: var(--font-display);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.coming-soon__description {
    font-size: 18px;
    color: var(--color-medium-gray);
}

.speakers__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.speaker-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-default);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: var(--shadow-sm);
}

.speaker-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(233, 30, 140, 0.15);
}

.speaker-card:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

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

.speaker-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-default);
}

.speaker-card:hover .speaker-card__image img {
    transform: scale(1.05);
}

.speaker-card__info {
    padding: var(--spacing-md);
    text-align: center;
}

.speaker-card__name {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.speaker-card__company {
    font-size: 13px;
    color: var(--color-medium-gray);
    margin-bottom: 4px;
    line-height: 1.4;
}

.speaker-card__title {
    font-size: 12px;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

/* ===================================
   Speaker Modal
   =================================== */
.speaker-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
}

.speaker-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

.speaker-modal__content {
    position: relative;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.speaker-modal__close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    border: none;
    background-color: var(--color-light-gray);
    border-radius: 50%;
    font-size: 24px;
    color: var(--color-dark-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-default);
    z-index: 10;
}

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

.speaker-modal__close:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

.speaker-modal__body {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
}

.speaker-modal__image {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--color-light-gray);
}

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

.speaker-modal__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.speaker-modal__name {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin: 0;
}

.speaker-modal__company {
    font-size: 16px;
    color: var(--color-medium-gray);
    margin: 0;
}

.speaker-modal__title {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--spacing-md) 0;
}

.speaker-modal__profile {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-dark-gray);
    margin: 0;
}

/* ===================================
   Countdown Timer
   =================================== */
.hero__countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.countdown__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 90px;
}

.countdown__number {
    font-size: 42px;
    font-weight: var(--font-weight-black);
    font-family: var(--font-display);
    line-height: 1;
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.countdown__label {
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.8);
    margin-top: var(--spacing-xs);
}

.countdown__separator {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: rgba(255, 255, 255, 0.6);
    margin: 0 -8px;
}

/* ===================================
   Program Section
   =================================== */
.program {
    background-color: var(--color-light-gray);
}

.program__categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.program__category {
    padding: 10px 24px;
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-medium-gray);
    cursor: pointer;
    transition: all var(--transition-default);
    border: 2px solid transparent;
}

.program__category:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.program__category--active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.program__category--active:hover {
    color: var(--color-white);
    border-color: transparent;
}

.program__timeline {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.timeline__item {
    display: flex;
    gap: var(--spacing-lg);
    opacity: 1;
    transition: opacity var(--transition-default);
}

.timeline__item.hidden {
    display: none;
}

.timeline__time {
    flex-shrink: 0;
    width: 100px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding-top: var(--spacing-md);
}

.timeline__hour {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    font-family: var(--font-display);
    color: var(--color-black);
}

.timeline__duration {
    font-size: 13px;
    color: var(--color-medium-gray);
    font-weight: var(--font-weight-medium);
}

.timeline__content {
    flex: 1;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-light-gray);
    transition: all var(--transition-default);
    position: relative;
}

.timeline__content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.timeline__content--highlight {
    border-left-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.03) 0%, rgba(157, 78, 221, 0.03) 100%);
}

.timeline__content--party {
    border-left-color: var(--color-primary-light);
    background: linear-gradient(135deg, rgba(76, 201, 240, 0.05) 0%, rgba(157, 78, 221, 0.05) 100%);
}

.timeline__badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.timeline__badge--keynote {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.timeline__badge--session {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}

.timeline__badge--networking {
    background-color: var(--color-light-gray);
    color: var(--color-dark-gray);
}

.timeline__hall {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    color: var(--color-medium-gray);
    background-color: var(--color-light-gray);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

.timeline__title {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    padding-right: 80px;
}

.timeline__description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-medium-gray);
    margin-bottom: var(--spacing-md);
}

.timeline__speakers {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline__speaker {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    background-color: var(--color-accent-light);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.program__note {
    text-align: center;
    font-size: 14px;
    color: var(--color-medium-gray);
    margin-top: var(--spacing-2xl);
}

/* ===================================
   Program Section
   =================================== */
.program {
    background-color: var(--color-light-gray);
}

.program__timetable {
    max-width: 1100px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.program__header {
    display: grid;
    grid-template-columns: 120px 1fr 1fr 1fr;
    background: linear-gradient(135deg, #1a365d 0%, #2c5282 100%);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    font-size: 14px;
}

.program__time-header,
.program__hall-header {
    padding: var(--spacing-md);
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.program__hall-header:last-child {
    border-right: none;
}

.program__row {
    display: grid;
    grid-template-columns: 120px 1fr 1fr 1fr;
    border-bottom: 1px solid var(--color-light-gray);
}

.program__row:last-child {
    border-bottom: none;
}

.program__time {
    padding: var(--spacing-md);
    font-size: 13px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-dark-gray);
    background: #f7fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-right: 1px solid var(--color-light-gray);
}

.program__session {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-right: 1px solid var(--color-light-gray);
    min-height: 70px;
}

.program__session:last-child {
    border-right: none;
}

.program__label {
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.program__title {
    font-size: 14px;
    color: var(--color-dark-gray);
    font-weight: var(--font-weight-medium);
}

.program__session--keynote {
    background: linear-gradient(135deg, #718096 0%, #a0aec0 100%);
}

.program__session--keynote .program__label {
    color: rgba(255, 255, 255, 0.8);
}

.program__session--keynote .program__title {
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    font-size: 16px;
}

.program__session--sponsor {
    background: rgba(233, 30, 140, 0.05);
}

.program__session--sponsor .program__label {
    color: var(--color-primary);
}

.program__session--break {
    background: #c6f6d5;
}

.program__session--break .program__title {
    color: #276749;
    font-weight: var(--font-weight-semibold);
}

.program__session--party {
    background: linear-gradient(135deg, #c6f6d5 0%, #9ae6b4 100%);
}

.program__session--party .program__label {
    color: #276749;
    font-size: 14px;
    font-weight: var(--font-weight-bold);
}

.program__session--empty {
    background: #f7fafc;
}

.program__session--empty .program__title {
    color: var(--color-medium-gray);
    font-size: 12px;
}

.program__note {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: 14px;
    color: var(--color-medium-gray);
}

/* ===================================
   Tickets Section
   =================================== */
.tickets {
    background-color: var(--color-white);
}

.tickets__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.tickets__grid--two {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
}

.ticket-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    border: 2px solid var(--color-light-gray);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-default);
    position: relative;
}

.ticket-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.ticket-card--featured {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-colored);
}

.ticket-card--featured:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
}

.ticket-card__badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 6px 20px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.ticket-card__header {
    padding: var(--spacing-xl);
    text-align: center;
    background-color: var(--color-light-gray);
}

.ticket-card--featured .ticket-card__header {
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.1) 0%, rgba(157, 78, 221, 0.1) 100%);
    padding-top: calc(var(--spacing-xl) + 20px);
}

.ticket-card__name {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.ticket-card__price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.ticket-card__amount {
    font-size: 36px;
    font-weight: var(--font-weight-black);
    font-family: var(--font-display);
    color: var(--color-black);
}

.ticket-card--featured .ticket-card__amount {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ticket-card__note {
    font-size: 13px;
    color: var(--color-medium-gray);
}

.ticket-card__body {
    padding: var(--spacing-xl);
    flex: 1;
}

.ticket-card__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.ticket-card__feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: 14px;
    line-height: 1.5;
}

.ticket-card__feature svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.ticket-card__feature--included {
    color: var(--color-dark-gray);
}

.ticket-card__feature--included svg {
    color: var(--color-primary);
}

.ticket-card__feature--excluded {
    color: var(--color-medium-gray);
    opacity: 0.6;
}

.ticket-card__feature--excluded svg {
    color: var(--color-medium-gray);
}

.ticket-card__note-text {
    font-size: 13px;
    color: var(--color-medium-gray);
    line-height: 1.6;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-light-gray);
}

.ticket-card__footer {
    padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
}

.ticket-card__footer .btn {
    width: 100%;
}

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

.btn--outline:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-color: transparent;
}

/* ===================================
   Sponsors Section - Tiered
   =================================== */
.sponsors__tier {
    margin-bottom: var(--spacing-2xl);
}

.sponsors__tier:last-of-type {
    margin-bottom: var(--spacing-xl);
}

.sponsors__tier-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.sponsors__tier-badge {
    display: inline-block;
    padding: 8px 24px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.sponsors__tier-badge--platinum {
    background: linear-gradient(135deg, #E5E4E2 0%, #BFC1C2 50%, #E5E4E2 100%);
    color: #2D3748;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.sponsors__tier-badge--gold {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 50%, #FFD700 100%);
    color: #1A202C;
    box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
}

.sponsors__tier-badge--silver {
    background: linear-gradient(135deg, #C0C0C0 0%, #A8A8A8 50%, #C0C0C0 100%);
    color: #2D3748;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.sponsors__grid--platinum {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 700px;
    margin: 0 auto;
}

.sponsors__grid--gold {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.sponsors__grid--silver {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.sponsor-logo--platinum {
    min-height: 160px;
    padding: var(--spacing-2xl);
}

.sponsor-logo--platinum .sponsor-placeholder {
    font-size: 24px;
}

.sponsor-logo--gold {
    min-height: 130px;
    padding: var(--spacing-xl);
}

.sponsor-logo--gold .sponsor-placeholder {
    font-size: 20px;
}

.sponsor-logo--silver {
    min-height: 100px;
    padding: var(--spacing-lg);
}

.sponsor-logo--silver .sponsor-placeholder {
    font-size: 16px;
}

.sponsors__tier {
    margin-bottom: var(--spacing-xl);
}

.sponsors__tier-title {
    text-align: center;
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-medium-gray);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-lg);
}

.sponsors__logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.sponsors__logos--platinum .sponsor__logo {
    max-width: 420px;
}

.sponsors__logos--platinum .sponsor__logo img {
    max-height: 168px;
}

.sponsors__logos--silver .sponsor__logo {
    max-width: 220px;
}

.sponsors__logos--silver .sponsor__logo img {
    max-height: 70px;
}

.sponsors__logos--logo .sponsor__logo {
    max-width: none;
}

.sponsors__logos--logo .sponsor__logo img {
    max-height: none;
}

.sponsor__logo {
    display: block;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.sponsor__logo img {
    max-width: 100%;
    height: auto;
    max-height: 168px;
    object-fit: contain;
}

.sponsor__logo:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

.sponsors__more {
    text-align: center;
    font-size: var(--font-size-body);
    color: var(--color-medium-gray);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.sponsors__cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
}

.sponsors__cta p {
    color: var(--color-medium-gray);
    font-size: 15px;
}

.sponsors__cta a {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    text-decoration: underline;
}

.sponsors__cta a:hover {
    color: var(--color-primary-dark);
}