:root {
--primary-color: #0054a6;
--secondary-color: #e30613;
--accent-color: #ffc600;
--dark-color: #1a1a1a;
--light-color: #f8f9fa;
--gray-color: #6c757d;
}

* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Roboto', Arial, sans-serif;
}

body {
color: var(--dark-color);
line-height: 1.6;
background-color: #fff;
}

.container {
max-width:1100px;
margin: 0 auto;
padding: 0 15px;
}

/* Header styles */
header {
background-color: var(--primary-color);
color: white;
padding: 20px 0 0;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
display: flex;
justify-content: space-between;
align-items: center;
padding-bottom: 20px;
}

.logo {
display: flex;
align-items: center;
}

.logo img {
height: 60px;
margin-right: 15px;
}

.logo-text h1 {
font-size: 24px;
font-weight: 700;
margin-bottom: 5px;
}

.logo-text p {
font-size: 14px;
opacity: 0.8;
}

.header-contacts {
text-align: right;
}

.header-contacts a {
color: white;
text-decoration: none;
display: block;
margin-bottom: 5px;
}

/* Navigation menu */
.main-nav {
background-color: rgba(0, 0, 0, 0.1);
}

.nav-container {
display: flex;
justify-content: center;
}

.nav-list {
display: flex;
list-style: none;
}

.nav-item {
position: relative;
}

.nav-item:after {
content: '';
position: absolute;
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 0;
height: 2px;
background-color: var(--accent-color);
transition: width 0.3s ease;
}

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

.nav-link {
display: block;
color: white;
text-decoration: none;
padding: 15px 25px;
font-weight: 500;
transition: all 0.3s ease;
}

.nav-link:hover {
color: var(--accent-color);
}

/* Hero section */
.hero {
background: linear-gradient(rgba(0, 84, 166, 0.8), rgba(0, 84, 166, 0.8)), url('https://images.unsplash.com/photo-1620712943543-bcc4688e7485?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1200&q=80');
background-size: cover;
background-position: center;
color: white;
padding: 80px 0;
text-align: center;
}

.hero h2 {
font-size: 36px;
margin-bottom: 20px;
font-weight: 700;
}

.hero p {
font-size: 18px;
max-width: 800px;
margin: 0 auto 30px;
}

.btn {
display: inline-block;
background-color: var(--accent-color);
color: var(--dark-color);
padding: 12px 30px;
border-radius: 4px;
text-decoration: none;
font-weight: 700;
transition: all 0.3s ease;
border: none;
cursor: pointer;
}

.btn:hover {
background-color: #e6b800;
transform: translateY(-2px);
}

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

.btn-primary:hover {
background-color: #c00511;
}

/* Section styles */
section {
padding: 60px 0;
}

.section-title {
text-align: center;
margin-bottom: 40px;
}

.section-title h2 {
font-size: 32px;
color: var(--primary-color);
position: relative;
display: inline-block;
padding-bottom: 15px;
}

.section-title h2:after {
content: '';
position: absolute;
bottom: 0;
left: 50%;
transform: translateX(-50%);
width: 80px;
height: 3px;
background-color: var(--secondary-color);
}

/* About conference */
.about-conference {
background-color: var(--light-color);
}

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

.about-content p {
margin-bottom: 20px;
text-align: justify;
}

/* For whom */
.for-whom ul {
columns: 2;
column-gap: 40px;
margin-bottom: 30px;
}

.for-whom li {
margin-bottom: 10px;
list-style-position: inside;
}

/* Audience list */
.audience-list {
max-width: 800px;
margin: 0 auto;
}

.audience-item {
display: flex;
align-items: flex-start;
margin-bottom: 25px;
padding-bottom: 25px;
border-bottom: 1px solid rgba(0, 84, 166, 0.1);
}

.audience-item:last-child {
margin-bottom: 0;
padding-bottom: 0;
border-bottom: none;
}

.audience-icon {
color: var(--primary-color);
font-size: 30px;
margin-right: 20px;
min-width: 30px;
}

.audience-text {
font-size: 16px;
line-height: 1.6;
}

/* Benefits */
.benefits {
background-color: var(--light-color);
}

.benefits-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 30px;
}

.benefit-card {
background-color: white;
padding: 30px;
border-radius: 8px;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
transition: transform 0.3s ease;
}

.benefit-card:hover {
transform: translateY(-5px);
}

.benefit-card h3 {
color: var(--primary-color);
margin-bottom: 15px;
font-size: 20px;
}

/* Program */
.program {
background-color: #f9f9f9;
}

.program-day {
background-color: white;
border-radius: 8px;
padding: 30px;
margin-bottom: 40px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.program-day h3 {
background-color: var(--primary-color);
color: white;
padding: 15px 20px;
border-radius: 4px;
margin-bottom: 25px;
font-size: 20px;
}

.program-session {
display: flex;
gap: 30px;
margin-bottom: 30px;
}

.session-time {
font-weight: bold;
color: var(--primary-color);
min-width: 120px;
padding-top: 3px;
text-align: right;
}

.session-content {
flex: 1;
border-left: 3px solid var(--secondary-color);
padding-left: 20px;
}

.session-content h4 {
color: var(--primary-color);
margin-bottom: 10px;
font-size: 18px;
}

.session-location {
color: var(--gray-color);
margin-bottom: 15px;
font-style: italic;
font-size: 15px;
}

.session-speaker {
margin-bottom: 15px;
font-style: italic;
}

.session-details {
margin-bottom: 20px;
}

.session-subtitle,
.session-theme,
.session-description {
margin-bottom: 15px;
font-weight: normal;
}

.session-points,
.session-participants {
margin-left: 20px;
margin-bottom: 20px;
}

.session-points li,
.session-participants li {
margin-bottom: 10px;
line-height: 1.5;
}

.session-note,
.session-additional {
font-style: italic;
color: var(--gray-color);
margin-top: 15px;
padding-left: 20px;
position: relative;
}

.session-note:before,
.session-additional:before {
content: "*";
position: absolute;
left: 5px;
}

/* Speakers */
.speakers {
background-color: var(--light-color);
}

.speakers-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 30px;
}

.speaker-card {
background-color: white;
padding: 25px;
border-radius: 8px;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
text-align: center;
}

.speaker-photo {
width: 150px;
height: 150px;
border-radius: 50%;
object-fit: cover;
margin: 0 auto 20px;
border: 3px solid var(--secondary-color);
}

.speaker-card h3 {
color: var(--primary-color);
margin-bottom: 10px;
}

.speaker-position {
color: var(--gray-color);
font-style: italic;
margin-bottom: 15px;
}

/* Partners */
.partners-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 30px;
align-items: center;
}

.partner-logo {
max-height: 80px;
width: auto;
filter: grayscale(100%);
opacity: 0.7;
transition: all 0.3s ease;
}

.partner-logo:hover {
filter: grayscale(0);
opacity: 1;
}

/* Packages */
.packages {
background-color: #f9f9f9;
}

.package-cards {
display: flex;
justify-content: center;
gap: 30px;
margin-top: 40px;
flex-wrap: wrap;
}

.package-card {
background: white;
border-radius: 8px;
padding: 30px;
width: 100%;
max-width: 400px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
position: relative;
border: 1px solid #e0e0e0;
}

.package-card.premium {
border: 2px solid var(--accent-color);
}

.package-badge {
position: absolute;
top: -12px;
right: 20px;
background: var(--accent-color);
color: var(--dark-color);
padding: 5px 15px;
border-radius: 20px;
font-weight: bold;
font-size: 14px;
}

.package-card h3 {
color: var(--primary-color);
font-size: 22px;
margin-bottom: 15px;
text-align: center;
}

.package-price {
font-size: 28px;
font-weight: bold;
color: var(--secondary-color);
text-align: center;
margin-bottom: 25px;
}

.package-features {
list-style: none;
}

.package-features li {
margin-bottom: 12px;
padding-left: 25px;
position: relative;
line-height: 1.5;
}

.package-features i {
position: absolute;
left: 0;
top: 4px;
color: var(--secondary-color);
}

/* Registration */
.registration {
background-color: var(--primary-color);
color: white;
}

.registration .section-title h2 {
color: white;
}

.registration .section-title p {
color: rgba(255,255,255,0.8);
margin-top: 10px;
}

.registration-form {
max-width: 800px;
margin: 40px auto 0;
}

.form-row {
display: flex;
gap: 30px;
margin-bottom: 20px;
}

.form-group {
flex: 1;
}

.form-group label {
display: block;
margin-bottom: 8px;
font-weight: 500;
}

.form-group input,
.form-group select {
width: 100%;
padding: 12px 15px;
border-radius: 4px;
border: none;
font-size: 16px;
background-color: rgba(255,255,255,0.9);
}

.form-group select {
appearance: none;
background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23666'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
background-repeat: no-repeat;
background-position: right 15px center;
background-size: 20px;
}

.form-submit {
text-align: center;
margin-top: 30px;
}

.form-notice {
font-size: 14px;
margin-top: 15px;
color: rgba(255,255,255,0.7);
}

/* Location */
.location {
background-color: #f9f9f9;
}

.location-content {
display: flex;
gap: 30px;
margin-top: 40px;
}

.location-info {
flex: 1;
max-width: 400px;
}

.location-address {
background: white;
padding: 25px;
border-radius: 8px;
margin-bottom: 30px;
box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.location-address i {
color: var(--secondary-color);
font-size: 24px;
margin-bottom: 15px;
}

.location-address h3,
.location-contacts h3 {
color: var(--primary-color);
margin-bottom: 15px;
font-size: 20px;
}

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

.transport-list li {
margin-bottom: 15px;
padding-left: 30px;
position: relative;
}

.transport-list i {
position: absolute;
left: 0;
top: 3px;
color: var(--primary-color);
font-size: 18px;
}

.location-map {
flex: 2;
height: 400px;
border-radius: 8px;
overflow: hidden;
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Footer */
footer {
background-color: var(--dark-color);
color: white;
padding: 40px 0 20px;
}

.footer-content {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 30px;
margin-bottom: 30px;
}

.footer-column h3 {
color: var(--accent-color);
margin-bottom: 20px;
font-size: 18px;
}

.footer-column ul {
list-style: none;
}

.footer-column li {
margin-bottom: 10px;
}

.footer-column a {
color: #ccc;
text-decoration: none;
transition: color 0.3s ease;
}

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

.footer-column i {
margin-right: 10px;
width: 20px;
text-align: center;
}

.copyright {
text-align: center;
padding-top: 20px;
border-top: 1px solid rgba(255, 255, 255, 0.1);
color: #999;
font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .logo {
        margin-bottom: 20px;
        justify-content: center;
    }

    .header-contacts {
        text-align: center;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
    }

    .nav-item {
        width: 100%;
        text-align: center;
    }

    .nav-link {
        padding: 10px;
    }

    .for-whom ul {
        columns: 1;
    }

    .audience-item {
        flex-direction: column;
    }

    .audience-icon {
        margin-right: 0;
        margin-bottom: 10px;
    }

    .form-row {
        flex-direction: column;
        gap: 20px;
    }

    .package-cards {
        flex-direction: column;
        align-items: center;
    }

    .package-card {
        max-width: 100%;
    }

    .location-content {
        flex-direction: column;
    }

    .location-info {
        max-width: 100%;
    }

    .location-map {
        height: 300px;
    }

    .program-session {
        flex-direction: column;
        gap: 10px;
    }

    .session-time {
        text-align: left;
        padding-bottom: 10px;
        border-bottom: 1px dashed #ddd;
    }

    .session-content {
        border-left: none;
        padding-left: 0;
    }
}

#form-success-container,
#form-error-container,
.additiona-info,
.kontact_person_box {
	display: none;
}