/* CORE EVENT Landing Page Styles */

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

:root {
    --kore-red: #c41230;
    --kore-red-dark: #9e0f28;
    --kore-red-darker: #7a0c1f;
    --black: #1a1a1a;
    --dark-gray: #2d2d2d;
    --medium-gray: #4a4a4a;
    --light-gray: #e5e5e5;
    --white: #ffffff;
    --gold-accent: #d4af37;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.75;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
    background: var(--kore-red);
    padding: 24px 0;
    text-align: center;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.kore-logo {
    max-width: 280px;
    max-height: 100px;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* Show vertical logo by default, hide horizontal */
.kore-logo-horizontal {
    display: none;
}

.kore-logo-vertical {
    display: block;
}

/* Hero Section */
.hero {
    background: var(--kore-red-dark);
    padding: 50px 20px 70px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.core-title {
    margin-bottom: 10px;
}

.core-text {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: clamp(3.5rem, 12vw, 6rem);
    font-weight: 900;
    letter-spacing: 10px;
    text-transform: uppercase;
    color: var(--white);
    display: block;
    text-shadow: 2px 4px 8px rgba(0, 0, 0, 0.5);
}

.conference-subtitle {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    font-weight: 700;
    letter-spacing: 6px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 30px;
    text-shadow: 1px 2px 4px rgba(0, 0, 0, 0.4);
}

.divider {
    width: 80%;
    max-width: 600px;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
    margin: 0 auto 35px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.date-title {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: clamp(1.8rem, 5vw, 2.8rem);
    font-weight: 900;
    letter-spacing: 4px;
    margin-bottom: 12px;
    text-shadow: 1px 3px 6px rgba(0, 0, 0, 0.4);
}

.location {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 700;
    letter-spacing: 5px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    text-shadow: 1px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-register-btn {
    display: inline-block;
    margin-top: 15px;
    padding: 18px 36px;
    font-family: 'Roboto', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--kore-red-dark);
    background: var(--white);
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.hero-register-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

/* Main Content */
.main-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Welcome Section */
.welcome-section {
    background: var(--dark-gray);
    padding: 60px 40px;
    text-align: center;
    border-left: 4px solid var(--kore-red);
    border-right: 4px solid var(--kore-red);
}

.greeting {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 32px;
    color: rgba(229, 229, 229, 0.9);
    font-style: italic;
    letter-spacing: 0.5px;
}

.intro {
    font-size: 1.15rem;
    line-height: 2;
    margin-bottom: 32px;
    color: var(--white);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.3px;
}

.focus {
    font-size: 1.125rem;
    margin-bottom: 28px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    letter-spacing: 0.3px;
}

.highlights {
    list-style: none;
    margin-bottom: 24px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.highlights li {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gold-accent);
    margin-bottom: 14px;
    letter-spacing: 0.5px;
    padding: 8px 0;
}

.highlights li::before {
    content: "▸ ";
    color: var(--kore-red);
    font-size: 1.3rem;
    margin-right: 8px;
}

/* Details Section */
.details-section {
    background: var(--dark-gray);
    padding: 50px 35px;
    border-left: 4px solid var(--kore-red);
    border-right: 4px solid var(--kore-red);
}

.section-title {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 5px;
    text-align: center;
    padding: 24px;
    background: var(--medium-gray);
    margin-bottom: 45px;
    text-shadow: 1px 2px 3px rgba(0, 0, 0, 0.3);
    border-left: 3px solid var(--kore-red);
    border-right: 3px solid var(--kore-red);
}

.details-grid {
    display: grid;
    gap: 35px;
}

.detail-item {
    text-align: center;
    padding: 25px 20px;
    background: rgba(42, 42, 42, 0.4);
    border-radius: 8px;
    border: 1px solid rgba(196, 18, 48, 0.15);
}

.detail-item h4 {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--kore-red);
    margin-bottom: 16px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.detail-item p {
    font-size: 1.08rem;
    color: rgba(229, 229, 229, 0.95);
    line-height: 1.85;
    letter-spacing: 0.3px;
}

.detail-item em {
    color: var(--gold-accent);
    font-style: normal;
    font-weight: 600;
}

.add-to-calendar-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    padding: 13px 22px;
    font-family: 'Roboto', sans-serif;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--white);
    background: var(--kore-red);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.add-to-calendar-btn:hover {
    background: var(--kore-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.add-to-calendar-btn svg {
    flex-shrink: 0;
}

/* Hero section calendar button - white styling */
.hero .add-to-calendar-btn {
    background: var(--white);
    color: var(--kore-red);
    margin-top: 15px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.hero .add-to-calendar-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--kore-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.hero .add-to-calendar-btn svg {
    stroke: var(--kore-red);
}

.reserve-room-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    padding: 13px 22px;
    font-family: 'Roboto', sans-serif;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--white);
    background: var(--kore-red);
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.reserve-room-btn:hover {
    background: var(--kore-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.reserve-room-btn svg {
    flex-shrink: 0;
}

.venue-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.venue-logo {
    max-width: 180px;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.venue-logo:hover {
    opacity: 1;
}

.venue-logo-link {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.venue-logo-link:hover {
    transform: translateY(-2px);
}

.venue-logo-hilton {
    background: var(--white);
    padding: 10px 15px;
    border-radius: 6px;
}

.map-container {
    margin-top: 20px;
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.map-container iframe {
    width: 100%;
    height: 350px;
    display: block;
}

/* Location Section */
.location-section {
    background: var(--black);
    padding: 60px 40px;
    text-align: center;
    border-top: 2px solid var(--kore-red);
    border-bottom: 2px solid var(--kore-red);
}

.overview-title {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 38px;
    color: var(--white);
    text-transform: uppercase;
    text-shadow: 1px 2px 4px rgba(0, 0, 0, 0.4);
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(196, 18, 48, 0.4);
    display: inline-block;
}

.location-details {
    margin-bottom: 32px;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.location-details p {
    font-size: 1.08rem;
    color: rgba(229, 229, 229, 0.95);
    margin-bottom: 16px;
    line-height: 1.85;
    letter-spacing: 0.3px;
}

.location-details strong {
    color: var(--white);
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.location-note {
    font-size: 1.08rem;
    color: rgba(229, 229, 229, 0.95);
    margin-bottom: 32px;
    line-height: 1.9;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.3px;
}

.additional-info {
    font-size: 1.08rem;
    color: rgba(229, 229, 229, 0.95);
    margin-bottom: 28px;
    line-height: 1.9;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.3px;
}

.closing {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 32px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.signature {
    font-size: 1.08rem;
    color: rgba(229, 229, 229, 0.9);
    font-style: italic;
    letter-spacing: 0.3px;
    padding-top: 16px;
    border-top: 1px solid rgba(196, 18, 48, 0.3);
    display: inline-block;
}

/* Registration Form Section */
.registration-section {
    background: var(--kore-red-dark);
    padding: 60px 40px;
    margin-top: 40px;
    border-top: 3px solid var(--kore-red-darker);
}

.form-title {
    font-family: 'Roboto Condensed', 'Roboto', sans-serif;
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: 4px;
    text-align: center;
    margin-bottom: 14px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

.form-subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    font-size: 1.15rem;
    letter-spacing: 0.5px;
    font-weight: 400;
}

.registration-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 500px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

.form-group label {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--white);
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.form-group input {
    width: 100%;
    padding: 16px 18px;
    font-size: 1.05rem;
    font-family: inherit;
    border: 2px solid transparent;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--black);
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--gold-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.3);
}

.form-group input::placeholder {
    color: #999;
}

.submit-btn {
    width: 100%;
    padding: 20px 32px;
    font-family: 'Roboto', sans-serif;
    font-size: 1.18rem;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--white);
    background: var(--black);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.submit-btn:hover:not(:disabled) {
    background: #333;
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
    letter-spacing: 3px;
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-message {
    text-align: center;
    padding: 15px;
    border-radius: 6px;
    margin-top: 20px;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(39, 174, 96, 0.2);
    border: 1px solid #27ae60;
    color: #2ecc71;
}

.form-message.error {
    display: block;
    background: rgba(231, 76, 60, 0.2);
    border: 1px solid #e74c3c;
    color: #ff6b6b;
}

/* Footer */
.footer {
    background:#bf1e24;
    padding: 40px 20px;
    border-top: 3px solid var(--kore-red);
}

.brand-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 25px 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.brand-logo {
    max-width: 100px;
    max-height: 50px;
    width: auto;
    height: auto;
    object-fit: contain;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.brand-logo:hover {
    opacity: 1;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .header {
        padding: 15px 0;
        background: var(--white);
    }
    
    /* Switch to horizontal logo on mobile */
    .kore-logo-vertical {
        display: none;
    }
    
    .kore-logo-horizontal {
        display: block;
    }
    
    .kore-logo {
        max-width: 240px;
        max-height: 70px;
    }
    
    .hero {
        padding: 30px 15px 50px;
    }
    
    .hero-register-btn {
        font-size: 0.9rem;
        padding: 14px 24px;
    }
    
    .welcome-section,
    .location-section {
        padding: 40px 25px;
    }
    
    .details-section {
        padding: 35px 25px;
    }
    
    .registration-section {
        padding: 45px 25px;
    }
    
    .intro,
    .location-note,
    .additional-info {
        font-size: 1.05rem;
    }
    
    .detail-item {
        padding: 20px 15px;
    }
    
    .brand-logos {
        gap: 15px 25px;
    }
    
    .brand-logo {
        max-width: 70px;
        max-height: 35px;
    }
}

@media (max-width: 480px) {
    .conference-subtitle {
        letter-spacing: 3px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.3rem;
        letter-spacing: 3px;
        padding: 18px;
    }
    
    .detail-item h4 {
        font-size: 1.3rem;
        letter-spacing: 1px;
    }
    
    .detail-item p {
        font-size: 1.05rem;
    }
    
    .overview-title {
        font-size: 1.5rem;
        letter-spacing: 3px;
    }
    
    .intro,
    .location-note,
    .additional-info {
        font-size: 1.02rem;
        line-height: 1.8;
    }
    
    .map-container iframe {
        height: 300px;
    }
}