/* Современный стиль для медицинской конференции */
:root {
    --primary-color: #1A5276;
    --secondary-color: #2980B9;
    --accent-color: #E74C3C;
    --text-color: #2C3E50;
    --light-gray: #F8F9FA;
    --white: #FFFFFF;
    --font-main: 'Jura', Arial, Helvetica, sans-serif;
    --font-heading: 'Jura', Arial, Helvetica, sans-serif;
    --header-height: 100px;
    --border-radius: 4px;
    --transition: all 0.3s ease;
    --box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}
* {margin:0;padding:0;box-sizing:border-box;}
body {
    font-family:var(--font-main);
    color:var(--text-color);
    background:var(--white);
    line-height:1.6;
    font-size:16px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.3;margin-bottom:1.5rem;color:var(--primary-color);}
h1{font-size:3.5rem;}h2{font-size:2.8rem;}h3{font-size:2.2rem;}h4{font-size:1.8rem;}h5{font-size:1.4rem;}h6{font-size:1.2rem;}
.container{width:100%;max-width:1400px;margin:0 auto;padding:0 20px;}
.site-header{background:var(--white);box-shadow:var(--box-shadow);position:fixed;width:100%;top:0;left:0;z-index:1000;height:var(--header-height);transition:var(--transition);}
.site-header .main-navigation{display:flex;justify-content:space-between;align-items:center;height:100%;}
.site-header .site-branding{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;gap:0.2em;}
.site-header .site-title{width:100%;text-align:center;font-size:2rem;font-weight:700;margin:0 0 0.2em 0;}
.site-header .site-title a{color:var(--primary-color);text-decoration:none;}
.site-header .nav-menu{display:flex;list-style:none;margin:0;padding:0;gap:30px;}
.site-header .nav-menu a{color:var(--text-color);text-decoration:none;font-weight:500;font-size:1.1rem;padding:10px 0;position:relative;transition:var(--transition);}
.site-header .nav-menu a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--secondary-color);transition:var(--transition);}
.site-header .nav-menu a:hover{color:var(--secondary-color);}
.site-header .nav-menu a:hover::after{width:100%;}
.section{padding:100px 0;}
.section-title{text-align:center;margin-bottom:60px;}
.section-title h2{font-size:2.8rem;margin-bottom:20px;position:relative;display:inline-block;}
.section-title h2::after{content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:80px;height:3px;background:var(--secondary-color);}
.btn{display:inline-block;padding:15px 30px;background:var(--secondary-color);color:var(--white);text-decoration:none;border-radius:var(--border-radius);font-weight:500;transition:var(--transition);border:none;cursor:pointer;}
.btn:hover{background:var(--primary-color);transform:translateY(-2px);}
.btn-outline{background:transparent;border:2px solid var(--secondary-color);color:var(--secondary-color);}
.btn-outline:hover{background:var(--secondary-color);color:var(--white);}
.card{background:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);overflow:hidden;transition:var(--transition);}
.card:hover{transform:translateY(-5px);box-shadow:0 5px 20px rgba(0,0,0,0.15);}
.grid{display:grid;gap:30px;}
.grid-2{grid-template-columns:repeat(2,1fr);}.grid-3{grid-template-columns:repeat(3,1fr);}.grid-4{grid-template-columns:repeat(4,1fr);}
.hero-section {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%); /* Яркий и контрастный синий градиент */
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}
.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}
.hero-title {
    color: cornsilk;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.2;
}
.hero-dates {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}
.date-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 18px;
}
.date-icon {
    font-size: 20px;
}
.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.bg-light{background-color:var(--light-gray);}
.card-content{padding:30px;}
.card-content h3{margin-bottom:15px;font-size:1.5rem;}
.speaker-card{text-align:center;}
.speaker-image{width:200px;height:200px;margin:0 auto 20px;border-radius:50%;overflow:hidden;}
.speaker-image img{width:100%;height:100%;object-fit:cover;}
.speaker-position{color:var(--secondary-color);font-weight:500;margin-bottom:10px;}
.speaker-description{font-size:0.9rem;color:var(--text-color);opacity:0.8;}
.program-tabs{background:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);overflow:hidden;}
.tabs-nav{display:flex;background:var(--light-gray);padding:20px;gap:10px;}
.tab-btn{padding:10px 20px;border:none;background:none;cursor:pointer;font-weight:500;color:var(--text-color);transition:var(--transition);border-radius:var(--border-radius);}
.tab-btn.active{background:var(--secondary-color);color:var(--white);}
.tab-pane{display:none;padding:30px;}
.tab-pane.active{display:block;}
.program-item{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:20px;border-bottom:1px solid var(--light-gray);}
.program-time{font-weight:500;color:var(--secondary-color);}
.program-info h4{margin-bottom:5px;font-size:1.2rem;}
.registration-form{max-width:600px;margin:0 auto;background:var(--white);padding:40px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);}
.venue-info{padding:30px;}
.venue-info h3{margin-bottom:20px;}
.venue-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;margin-top:30px;}
.feature{display:flex;align-items:center;gap:10px;}
.feature i{font-size:1.5rem;color:var(--secondary-color);}
.venue-map{height:400px;border-radius:var(--border-radius);overflow:hidden;}
@media (max-width:1200px){.container{max-width:1140px;}h1{font-size:3rem;}h2{font-size:2.5rem;}h3{font-size:2rem;}}
@media (max-width:992px){.container{max-width:960px;}.hero-content h1{font-size:3rem;}.hero-subtitle{font-size:1.2rem;}.grid-4{grid-template-columns:repeat(3,1fr);}}
@media (max-width:768px){.container{max-width:720px;}.hero-content h1{font-size:2.5rem;}.hero-buttons{flex-direction:column;}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}.program-item{grid-template-columns:1fr;gap:10px;}.tabs-nav{flex-direction:column;}}
@media (max-width:576px){.container{max-width:540px;}.hero-content h1{font-size:2rem;}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}.venue-features{grid-template-columns:1fr;}.section{padding:60px 0;}}
@media (max-width:900px) {
    .hero-content h1 { font-size: 2.5rem; }
    .venue-content {
        flex-direction: column;
        gap: 30px;
    }
    .venue-section .container {
        padding-left: 0;
        padding-right: 0;
    }
    .venue-info {
        padding: 0 16px;
    }
    .venue-map {
        max-width: 100%;
        min-width: 0;
        width: 100%;
        border-radius: 0;
    }
}
@media (max-width:600px) {
    .hero-section { min-height: 200px; padding: 30px 0; }
    .hero-content h1 { font-size: 2.2rem; }
    .venue-section {
        padding: 40px 0;
    }
    .venue-details h3 {
        font-size: 1.1rem;
    }
    .venue-info {
        padding: 0 4vw;
    }
    .venue-map {
        height: 250px;
    }
    .venue-map iframe, .venue-map script {
        height: 250px !important;
    }
}
/* Анимации */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
.card,.section-title,.program-item{opacity:0;transform:translateY(20px);transition:opacity 0.6s ease,transform 0.6s ease;}
.card.animate,.section-title.animate,.program-item.animate{opacity:1;transform:translateY(0);}
.grid-2 .card:nth-child(2){transition-delay:0.2s;}.grid-3 .card:nth-child(2){transition-delay:0.2s;}.grid-3 .card:nth-child(3){transition-delay:0.4s;}.grid-4 .card:nth-child(2){transition-delay:0.2s;}.grid-4 .card:nth-child(3){transition-delay:0.4s;}.grid-4 .card:nth-child(4){transition-delay:0.6s;}

/* Баннеры (логотипы) */
.banners-fullwidth {
    width: 100%;
    background: var(--white);
    padding: 30px 0 20px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.banners-list {
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}
.banners-list img {
    max-height: 90px;
    width: auto;
    filter: grayscale(0.2) brightness(0.95);
    opacity: 0.85;
    transition: filter 0.3s, opacity 0.3s, transform 0.3s;
}
.banners-list img:hover {
    filter: none;
    opacity: 1;
    transform: scale(1.07);
}

/* Слайдер */
.main-slider {
    width: 100vw;
    max-width: 100%;
    overflow: hidden;
    position: relative;
    background: #eaf3fa;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}
.main-slider .slide {
    display: flex;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: opacity 0.7s, transform 0.7s;
    transform: scale(0.98);
    z-index: 1;
}
.main-slider .slide.active {
    opacity: 1;
    pointer-events: auto;
    z-index: 2;
    transform: scale(1);
}
.main-slider img {
    width: 100vw;
    max-height: 500px;
    object-fit: cover;
    filter: brightness(0.7);
}
.slide-caption {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    z-index: 3;
    width: 90%;
    max-width: 800px;
    text-align: center;
    padding: 0 20px;
    box-sizing: border-box;
}
.slide-caption h2 {
    font-size: 2.7rem;
    margin-bottom: 10px;
    color: aliceblue;
    text-shadow: 0 0 2px #000, 0 0 1px #000, 0 1px 1px #000, 1px 0 1px #000;
}
.slide-caption p {
    font-size: 1.45rem;
    color: #FFFFFF;
 
    text-shadow:
    1px 1px 2px rgba(0,0,0,0.8),
    0 0 5px rgba(0,0,0,0.5);
}
.slider-controls {
    position: absolute;
    width: 100%;
    top: 50%;
    left: 0;
    display: flex;
    justify-content: space-between;
    z-index: 10;
    pointer-events: none;
}
.slider-controls button {
    background: rgba(26,82,118,0.7);
    color: #fff;
    border: none;
    font-size: 2rem;
    padding: 10px 20px;
    border-radius: 50% !important;
    cursor: pointer;
    pointer-events: all;
    transition: background 0.3s;
}
.slider-controls button:hover {
    background: var(--secondary-color);
}
@media (max-width: 900px) {
    .banners-list { gap: 20px; }
    .main-slider img { max-height: 300px; }
    .slide-caption h2 { font-size: 1.5rem; }
    .slide-caption {
        width: 95%;
        padding: 0 15px;
    }
}
@media (max-width: 600px) {
    .banners-list img { max-height: 60px; }
    .main-slider { min-height: 180px; }
    .slide-caption {
        width: 98%;
        padding: 0 10px;
        max-width: none;
    }
    .slide-caption h2 { 
        font-size: 1.1rem; 
        line-height: 1.2;
        margin-bottom: 8px;
    }
    .slide-caption p { 
        font-size: 0.9rem; 
        line-height: 1.3;
    }
}

@media (max-width: 480px) {
    .slide-caption {
        width: 100%;
        padding: 0 8px;
    }
    .slide-caption h2 { 
        font-size: 1rem; 
        line-height: 1.1;
        margin-bottom: 6px;
    }
    .slide-caption p { 
        font-size: 0.85rem; 
        line-height: 1.2;
    }
}

/* Слайдер участников */
.participants-section {
    background: #f7fafd;
    padding-top: 40px;
    padding-bottom: 40px;
}
.participants-slider-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}
.participants-slider {
    display: flex;
    gap: 30px;
    overflow: hidden;
    scroll-behavior: smooth;
    transition: transform 1.7s cubic-bezier(0.77, 0, 0.175, 1);
}
.participant-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(26,82,118,0.07);
    padding: 24px 18px 18px 18px;
    min-width: 260px;
    max-width: 260px;
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: box-shadow 0.3s, transform 0.3s;
}
.participant-card:hover {
    box-shadow: 0 6px 24px rgba(26,82,118,0.15);
    transform: translateY(-6px) scale(1.03);
}
.participant-photo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 18px;
    background: #eaf3fa;
    display: flex;
    align-items: center;
    justify-content: center;
}
.participant-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.participant-info h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
    color: var(--primary-color);
    text-align: center;
}
.participant-regalia {
    font-size: 0.98rem;
    color: #555;
    text-align: center;
    opacity: 0.85;
}
.participants-slider-controls {
  width: 100%;
  max-width: 1200px;
  margin: 16px auto 0 auto;
  display: flex !important;
  flex-direction: row !important;
  justify-content: center !important;
  align-items: center !important;
  position: static !important;
  padding: 0 !important;
  z-index: 2;
  pointer-events: auto;
}

.participants-slider-controls button {
  width: 44px;
  height: 44px;
  font-size: 1.7rem;
  background: rgba(41,128,185,0.95);
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 4px 16px rgba(41,128,185,0.18);
  color: #fff;
  transition: background 0.2s, box-shadow 0.2s, border 0.2s;
  padding: 0;
  display: flex !important;
  align-items: center;
  justify-content: center;
  pointer-events: all;
  margin: 0 14px !important;
  position: static !important;
  float: none !important;
  clear: none !important;
}

.participants-slider-controls button:hover,
.participants-slider-controls button:focus {
  background: #2980B9;
  box-shadow: 0 6px 24px rgba(41,128,185,0.28);
  border: 2px solid #ffd600;
  color: #fff;
}

@media (max-width: 600px) {
  .participants-slider-controls {
    position: static !important;
    margin-top: 16px;
    width: 100%;
    display: flex;
    justify-content: center;
    pointer-events: auto;
    top: auto !important;
    left: auto !important;
    right: auto !important;
  }
  .participants-slider-controls button {
    margin: 0 14px;
  }
}

@media (max-width: 900px) {
    .participants-slider { gap: 16px; }
    .participant-card { min-width: 220px; max-width: 220px; padding: 16px 8px; }
}
@media (max-width: 600px) {
    .participants-slider-wrapper { max-width: 100vw; }
    .participants-slider { gap: 8px; }
    .participant-card { min-width: 160px; max-width: 160px; padding: 10px 4px; }
    .participant-photo { width: 70px; height: 70px; }
}

.flag-banner {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    padding: 16px 0 8px 0;
}
.flag-banner img {
    width: 100%;
    max-width: 600px;
    max-height: 80px;
    object-fit: contain;
    display: block;
}
.flag-banner-bottom {
    margin-top: 32px;
    padding-bottom: 24px;
}
@media (max-width: 600px) {
    .flag-banner img { max-height: 50px; }
    .flag-banner { padding: 8px 0 4px 0; }
}

/* --- Флаговые звёзды и полосы на главной --- */
.flag-css {
    width: 100% !important;
    margin: 0 auto 24px auto !important;
    padding: 0 !important;
    position: relative !important;
    height: 52px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
}
.flag-stripe {
    position: absolute !important;
    width: 100% !important;
    height: 28px !important;
    min-height: 28px !important;
    max-width: 100vw !important;
}
.flag-stripe--red {
    background: #c00 !important;
    top: 0 !important;
}
.flag-stripe--yellow {
    background: #ffd600 !important;
    bottom: 0 !important;
}
.flag-stars {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    flex-wrap: nowrap !important;
    width: fit-content !important;
    max-width: 100vw !important;
    margin: 0 auto !important;
    height: 24px !important;
    position: relative !important;
    z-index: 1 !important;
}
.flag-star {
    width: 24px !important;
    height: 24px !important;
    display: inline-flex !important;
}
.flag-star svg {
    width: 24px !important;
    height: 24px !important;
    display: block !important;
}
@media (max-width: 220px) {
    .flag-stars {
        gap: 2px;
    }
}

.site-date {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--secondary-color);
    margin: 0 0 0.2em 0;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: rgba(255,255,255,0.85);
    display: inline-block;
    padding: 6px 24px;
    border-radius: 24px;
    box-shadow: 0 2px 8px rgba(41,128,185,0.07);
    animation: fadeInDate 1s;
    max-width: 90vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
@keyframes fadeInDate {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Стили формы регистрации */
.registration-form {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.registration-form h2 {
    margin-bottom: 1.5rem;
    color: #333;
    text-align: center;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-group .required {
    color: #dc3545;
    margin-left: 0.2rem;
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-button:hover {
    background: #0056b3;
}

.submit-button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.success-message {
    padding: 1.5rem;
    background: #d4edda;
    color: #155724;
    border-radius: 4px;
    text-align: center;
    font-size: 1.1rem;
}

.error-message {
    padding: 1.5rem;
    background: #f8d7da;
    color: #721c24;
    border-radius: 4px;
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .registration-form {
        padding: 30px 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-group input,
    .form-group select {
        padding: 10px 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    .form-hint {
        font-size: 11px;
        margin-top: 4px;
    }
}

@media (max-width: 480px) {
    .registration-section {
        padding: 40px 0;
    }
    
    .registration-form {
        padding: 20px 15px;
    }
    
    .submit-button {
        width: 100%;
        min-width: auto;
        padding: 12px 20px;
        font-size: 16px;
    }
    
    .form-hint {
        font-size: 10px;
    }
}

/* Дополнительные стили для формы регистрации */
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #fff;
    cursor: pointer;
    transition: border-color 0.3s ease;
    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='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    background-size: 1.2rem;
}

.form-group select:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-group select option {
    padding: 0.5rem;
}

.form-group input::placeholder {
    color: #bdc3c7;
}

/* Стили для подсказок */
.form-hint,
.registration-form .form-hint,
.registration-form small.form-hint {
  font-size: 12px !important;
  color: #7f8c8d !important;
  margin-top: 5px !important;
  line-height: 1.4 !important;
  font-style: italic !important;
  display: block !important;
  opacity: 0.8 !important;
  visibility: visible !important;
  height: auto !important;
  overflow: visible !important;
  position: static !important;
}

.registration-form .form-hint {
    font-size: 12px !important;
    color: #7f8c8d !important;
    margin-top: 5px !important;
    line-height: 1.4 !important;
    font-style: italic !important;
    display: block !important;
    opacity: 0.8 !important;
}

.form-actions {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.registration-form {
    max-width: 800px;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-row .form-group {
        margin-bottom: 1.2rem;
    }
}

/* Стили страницы входа */
.login-page {
    margin-top: 0;
    margin-bottom: 0;
    max-width: 420px;
    margin: 3rem auto;
    padding: 2.5rem 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.login-form-container h2 {
    margin-bottom: 2rem;
    text-align: center;
    color: #333;
    font-size: 2rem;
    word-break: break-word;
    line-height: 1.2;
}

.login-error {
    padding: 1rem;
    margin-bottom: 1.5rem;
    background: #f8d7da;
    color: #721c24;
    border-radius: 4px;
    text-align: center;
}

/* Стили личного кабинета */
.cabinet-page {
    padding: 2rem 0;
}

.cabinet-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1rem;
}

.cabinet-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.cabinet-header h2 {
    margin: 0;
    color: #333;
}

.logout-button {
    margin-left: auto !important;
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: #dc3545;
    color: #fff;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s ease;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(231,76,60,0.08);
}
.logout-button:hover {
    background: #c82333;
    color: #fff;
}
@media (max-width: 700px) {
    .logout-link, .logout-button {
        width: 100%;
        margin: 12px 0 0 0 !important;
        text-align: center;
        display: block;
    }
}
.cabinet-section {
    background: #fff;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.cabinet-section h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: #333;
    font-size: 1.4rem;
}

.user-info p {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.user-info strong {
    color: #555;
    min-width: 200px;
    display: inline-block;
}

.upload-form {
    max-width: 600px;
}

.file-hint {
    margin-top: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

.theses-list {
    display: grid;
    gap: 1rem;
}

.thesis-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

.thesis-info h4 {
    margin: 0 0 0.5rem 0;
    color: #333;
}

.thesis-date, .thesis-status {
    margin: 0.25rem 0;
    color: #666;
    font-size: 0.9rem;
}

.thesis-actions {
    display: flex;
    gap: 0.5rem;
}

.download-button, .delete-button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.download-button {
    background: #007bff;
    color: #fff;
}

.download-button:hover {
    background: #0056b3;
    color: #fff;
}

.delete-button {
    background: #dc3545;
    color: #fff;
}

.delete-button:hover {
    background: #c82333;
}

.no-theses {
    color: #666;
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 4px;
    border: 1px dashed #dee2e6;
}

@media (max-width: 768px) {
    .cabinet-container {
        padding: 0 1rem;
    }
    
    .thesis-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .thesis-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .user-info strong {
        display: block;
        margin-bottom: 0.25rem;
    }
}

@media (max-width: 600px) {
    .login-page {
        max-width: 98vw;
        padding: 1.2rem 0.5rem;
    }
    .login-form-container h2 {
        font-size: 1.3rem;
        margin-bottom: 1.2rem;
    }
}

.main-content-center {
    flex: 1 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height) - 60px); /* 60px — запас под футер */
}

@media (max-width: 600px) {
    .main-content-center {
        min-height: auto;
        align-items: flex-start;
        padding-top: calc(var(--header-height) + 1rem);
    }
}

/* Красивая кнопка выхода */
.logout-link {
    margin-left: 0 !important;
    margin-right: 0 !important;
    display: inline-block;
    background: #e74c3c;
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 8px rgba(231,76,60,0.08);
    text-decoration: none;
    border: none;
    vertical-align: middle;
}
.logout-link:hover {
    background: #c0392b;
    color: #fff !important;
    box-shadow: 0 4px 16px rgba(231,76,60,0.18);
    text-decoration: none;
}

/* Стили для админ-панели */
.admin-theses-page h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}
.admin-theses-page h2 {
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
}
.admin-theses-page h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}
.admin-filters input,
.admin-filters select,
.admin-filters .btn {
    font-size: 1rem;
    padding: 6px 12px;
    height: 36px;
}
.admin-user-block {
    font-size: 1rem;
}
.admin-user-block .admin-user-info p {
    margin: 0.2em 0;
    font-size: 0.98em;
}
.admin-theses-list,
.admin-thesis-item {
    font-size: 0.97em;
}
.admin-thesis-item textarea {
    font-size: 1em;
    padding: 6px 8px;
}
@media (max-width: 700px) {
    .admin-theses-page h1 { font-size: 1.3rem; }
    .admin-theses-page h2 { font-size: 1rem; }
    .admin-theses-page h3 { font-size: 0.95rem; }
    .admin-user-block { font-size: 0.95rem; }
}

/* Цветовые статусы тезисов */
.thesis-status-label, .admin-thesis-item .thesis-status-label {
    display: inline-block;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 16px;
    font-size: 1em;
    margin-top: 2px;
    margin-bottom: 2px;
}
.thesis-status-label.status-approved {
    background: #e6f9ed;
    color: #1e824c;
    border: 1px solid #1e824c;
}
.thesis-status-label.status-rejected {
    background: #ffeaea;
    color: #c0392b;
    border: 1px solid #c0392b;
}
.thesis-status-label.status-pending {
    background: #fff7e0;
    color: #b9770e;
    border: 1px solid #b9770e;
}

/* Красивая форма изменения статуса в админке */
.thesis-status-form {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    background: #f8f9fa;
    border-radius: 8px;
    padding: 10px 14px;
    box-shadow: 0 2px 8px rgba(41,128,185,0.07);
    border: 1px solid #e3e3e3;
}
.thesis-status-form select, .thesis-status-form textarea {
    font-size: 1em;
    border-radius: 4px;
    border: 1px solid #ccc;
    padding: 6px 10px;
}
.thesis-status-form textarea {
    min-width: 180px;
    min-height: 36px;
    resize: vertical;
}
.thesis-status-form button {
    background: #2980B9;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 8px 18px;
    font-weight: 600;
    transition: background 0.2s;
}
.thesis-status-form button:hover {
    background: #1A5276;
}

/* --- Адаптивная шапка сайта --- */
.site-header {
    background: var(--white);
    box-shadow: var(--box-shadow);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    height: auto;
    transition: var(--transition);
}
.site-header .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}
.main-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 70px;
    flex-wrap: wrap;
}
.site-branding {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    gap: 0.2em;
}
.site-title {
    width: 100%;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.2em 0;
}
.site-title a {
    color: var(--primary-color);
    text-decoration: none;
}
.site-date {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--secondary-color);
    margin: 0 0 0.2em 0;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: rgba(255,255,255,0.85);
    display: inline-block;
    padding: 6px 24px;
    border-radius: 24px;
    box-shadow: 0 2px 8px rgba(41,128,185,0.07);
    animation: fadeInDate 1s;
    max-width: 90vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
@media (max-width: 700px) {
    .site-title {
        font-size: 1.2rem;
    }
    .site-date {
        font-size: 1rem;
        padding: 6px 12px;
        max-width: 98vw;
    }
}
@media (max-width: 480px) {
    .site-title {
        font-size: 1rem;
    }
    .site-date {
        font-size: 0.95rem;
        padding: 4px 8px;
    }
}
.main-menu {
    display: flex;
    align-items: center;
    position: relative;
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    margin-right: 10px;
}
.menu-toggle-icon {
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    display: block;
    position: relative;
}
.menu-toggle-icon::before,
.menu-toggle-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    transition: 0.3s;
}
.menu-toggle-icon::before { top: -9px; }
.menu-toggle-icon::after { top: 9px; }
.nav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}
.nav-menu li {
    display: block;
}
.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    padding: 10px 0;
    position: relative;
    transition: var(--transition);
}
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}
.nav-menu a:hover {
    color: var(--secondary-color);
}
.nav-menu a:hover::after {
    width: 100%;
}
.logout-link {
    margin-left: 24px;
}
@media (max-width: 900px) {
    .site-header .container { max-width: 100vw; }
    .main-navigation { flex-direction: column; align-items: stretch; }
    .site-branding { justify-content: space-between; }
    .main-menu { width: 100%; justify-content: flex-end; }
}
@media (max-width: 700px) {
    .main-navigation { min-height: 56px; }
    .site-branding { flex-direction: column; align-items: center; gap: 6px; }
    .site-title { font-size: 1.1rem; }
    .site-date { 
        font-size: 1rem; 
        margin: 8px auto 18px auto;
        text-align: center;
        left: auto;
        transform: none;
        position: relative;
    }
    .main-menu { flex-direction: column; align-items: flex-end; }
    .menu-toggle { display: block; }
    .nav-menu {
        display: none;
        flex-direction: column;
        gap: 0;
        background: #fff;
        position: absolute;
        top: 48px;
        right: 0;
        min-width: 180px;
        box-shadow: 0 4px 24px rgba(41,128,185,0.13);
        border-radius: 0 0 12px 12px;
        z-index: 1001;
        padding: 10px 0;
    }
    .nav-menu.open { display: flex; }
    .nav-menu li { padding: 0 18px; }
    .logout-link { margin: 12px 18px 0 0; }
}

.site-content {
    padding-top: 160px;
}
@media (max-width: 900px) {
    .site-content { padding-top: 130px; }
}
@media (max-width: 700px) {
    .site-content { padding-top: 60px; }
}
@media (max-width: 480px) {
    .site-content { padding-top: 40px; }
}

/* --- Увеличенная форма логина --- */
.login-page .login-form-container {
    max-width: 480px;
    width: 100%;
    margin: 40px auto;
    padding: 32px 32px 28px 32px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 32px rgba(44, 62, 80, 0.10);
}
.login-page .login-form-container h2 {
    font-size: 2rem;
    margin-bottom: 28px;
}
.login-page .login-form-container .form-group {
    margin-bottom: 22px;
}
.login-page .login-form-container .input,
.login-page .login-form-container input[type="text"],
.login-page .login-form-container input[type="password"],
.login-page .login-form-container select {
    width: 100%;
    padding: 14px 16px;
    font-size: 1.1rem;
    border-radius: 8px;
    border: 1px solid #dbe3ea;
    margin-top: 6px;
    box-sizing: border-box;
}
.login-page .login-form-container .submit-button {
    width: 100%;
    padding: 16px 0;
    font-size: 1.15rem;
    border-radius: 8px;
    background: #2980B9;
    color: #fff;
    border: none;
    font-weight: 600;
    margin-top: 10px;
    transition: background 0.2s;
}
.login-page .login-form-container .submit-button:hover {
    background: #206090;
}
@media (max-width: 600px) {
    .login-page .login-form-container {
        max-width: 98vw;
        padding: 18px 6vw 18px 6vw;
    }
    .login-page .login-form-container h2 {
        font-size: 1.3rem;
    }
    .login-page .login-form-container .submit-button {
        font-size: 1rem;
        padding: 12px 0;
    }
}

/* --- Адаптивность главной страницы --- */
@media (max-width: 900px) {
    .hero-section, .section, .container {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-content .hero-subtitle {
        font-size: 1.1rem;
    }
    .section-title h2 {
        font-size: 1.3rem;
    }
    .venue-map { height: 320px !important; }
    .grid.grid-2 { grid-template-columns: 1fr !important; gap: 24px; }
}
@media (max-width: 600px) {
    .hero-section, .section, .container {
        padding-left: 4vw !important;
        padding-right: 4vw !important;
    }
    .hero-content h1 {
        font-size: 1.2rem;
        line-height: 1.2;
    }
    .hero-content .hero-subtitle {
        font-size: 1rem;
    }
    .hero-buttons { flex-direction: column; gap: 12px; }
    .hero-buttons .btn, .hero-buttons .btn-outline {
        width: 100%;
        font-size: 1rem;
        padding: 12px 0;
    }
    .section-title h2 {
        font-size: 1.1rem;
    }
    .venue-map { height: 200px !important; }
    .venue-info h3 { font-size: 1rem; }
    .venue-features { flex-direction: column; gap: 8px; }
    .registration-form, .registration-form form {
        padding: 0 !important;
        box-shadow: none !important;
    }
    .registration-form h2 {
        font-size: 1.1rem;
    }
    .registration-form .form-group label {
        font-size: 0.98rem;
    }
    .registration-form input, .registration-form select, .registration-form button {
        font-size: 1rem;
        padding: 10px 12px;
    }
    .registration-form .submit-button {
        padding: 12px 0;
    }
    .grid.grid-2 { grid-template-columns: 1fr !important; gap: 16px; }
}

@media (max-width: 600px) {
    .registration-form {
        width: 100% !important;
        max-width: none !important;
        margin: 0 !important;
        padding: 0 !important;
        background: none !important;
        border-radius: 0 !important;
        box-shadow: none !important;
    }
    .registration-form form {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        box-shadow: none !important;
        border-radius: 0 !important;
    }
    .registration-form h2 {
        font-size: 1.15rem;
        text-align: left;
        padding-left: 4vw;
    }
    .registration-form .form-group {
        padding-left: 4vw;
        padding-right: 4vw;
        margin-bottom: 18px;
    }
    .registration-form input,
    .registration-form select {
        width: 100%;
        font-size: 1.08rem;
        padding: 14px 12px;
        border-radius: 8px;
    }
    .registration-form .submit-button {
        width: 100%;
        font-size: 1.08rem;
        padding: 15px 0;
        margin-top: 10px;
        border-radius: 8px;
    }
}

@media (max-width: 600px) {
    .container, .section {
        max-width: none !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        background: none !important;
    }
    body {
        background: #f6f8fa;
    }
}

@media (max-width: 600px) {
    .site-header {
        width: 100% !important;
        padding: 16px 8px !important;
        margin: 0 !important;
        position: static !important;
        left: 0 !important;
        right: 0 !important;
        box-sizing: border-box;
    }
    .site-title, .site-date {
        padding-left: 8px !important;
        padding-right: 8px !important;
    }
    .site-main {
        margin-top: 0 !important;
        padding-top: 0 !important;
    }
}

@media (max-width: 600px) {
    .site-date {
        display: block;
        text-align: center;
        padding: 8px 16px !important;
        font-size: 1.1rem;
        max-width: 95vw;
        margin: 8px auto 18px auto;
        left: auto;
        transform: none;
        position: relative;
    }
    .site-date-main {
        display: block;
        font-size: 1.05rem;
        font-weight: 600;
        background: #f6fbff;
        border-radius: 12px;
        padding: 6px 16px;
        box-shadow: 0 2px 12px rgba(41,128,185,0.08);
        margin-bottom: 2px;
        text-align: center;
        width: 100%;
        box-sizing: border-box;
    }
    .site-date-city {
        display: block;
        font-size: 0.98rem;
        color: #2980B9;
        margin-top: 2px;
        padding: 0 16px;
        text-align: center;
        width: 100%;
        box-sizing: border-box;
    }
}

@media (max-width: 480px) {
    .site-date {
        font-size: 1rem;
        padding: 6px 12px !important;
        max-width: 98vw;
    }
    .site-date-main {
        font-size: 0.95rem;
        padding: 4px 12px;
    }
    .site-date-city {
        font-size: 0.9rem;
        padding: 0 12px;
    }
}

@media (max-width: 360px) {
    .site-date {
        font-size: 0.9rem;
        padding: 4px 8px !important;
    }
    .site-date-main {
        font-size: 0.85rem;
        padding: 3px 8px;
    }
    .site-date-city {
        font-size: 0.8rem;
        padding: 0 8px;
    }
}

/* --- Современные стили для главной страницы --- */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%); /* Яркий и контрастный синий градиент */
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.2;
}

.hero-dates {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.date-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 18px;
}

.date-icon {
    font-size: 20px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: #f39c12;
    color: white;
}

.btn-primary:hover {
    background: #e67e22;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(243, 156, 18, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #1a5276;
    transform: translateY(-2px);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.about-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.about-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* Directions Section */
.directions-section {
    padding: 80px 0;
    background: white;
}

.directions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.direction-item {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid #3498db;
    transition: all 0.3s ease;
    position: relative;
}

.direction-item:hover {
    background: #e3f2fd;
    transform: translateX(5px);
}

.direction-item.highlight {
    background: #fff3e0;
    border-left-color: #f39c12;
}

.direction-number {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #3498db;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.direction-item.highlight .direction-number {
    background: #f39c12;
}

.direction-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
    padding-right: 35px;
}

.direction-item p {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin: 0;
}

/* Schedule Section */
.schedule-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.schedule-tabs {
    max-width: 800px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.tab-btn {
    padding: 12px 24px;
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

.tab-content {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.schedule-item {
    display: flex;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.time {
    background: #3498db;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    min-width: 120px;
    text-align: center;
    margin-right: 20px;
}

.event {
    font-size: 1.1rem;
    color: #2c3e50;
    font-weight: 500;
}

/* Participation Section */
.participation-section {
    padding: 80px 0;
    background: white;
}

.participation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.participation-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.participation-card:hover {
    border-color: #3498db;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.card-header .card-icon {
    font-size: 2rem;
    margin: 0;
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.participation-card p {
    color: #7f8c8d;
    margin: 0;
}

/* Dates Section */
.dates-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.dates-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.dates-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e0e0e0;
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    background: #3498db;
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    font-weight: 600;
    min-width: 120px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.timeline-item.active .timeline-date {
    background: #f39c12;
}

.timeline-content {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin: 0 30px;
    flex: 1;
}

.timeline-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.timeline-content p {
    color: #7f8c8d;
    margin: 0;
}

/* Organizers Section */
.organizers-section {
    padding: 80px 0;
    background: white;
}

.organizers-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;
    gap: 40px 40px;
    margin: 0 auto;
    max-width: 1040px;
}
.organizer-card {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
    width: 320px;
    min-width: 320px;
    max-width: 320px;
    height: 340px;
    min-height: 340px;
    max-height: 340px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}
.organizer-card.empty {
    background: transparent;
    box-shadow: none;
    border: none;
    pointer-events: none;
    min-height: 340px;
    height: 340px;
    max-height: 340px;
    padding: 0;
    margin: 0;
    width: 320px;
    min-width: 320px;
    max-width: 320px;
}
@media (max-width: 1100px) {
    .organizer-card, .organizer-card.empty {
        width: 100%;
        min-width: 0;
        max-width: 100%;
        min-height: 220px;
        height: auto;
        max-height: none;
    }
}
@media (max-width: 700px) {
    .organizer-card, .organizer-card.empty {
        width: 100%;
        min-width: 0;
        max-width: 100%;
        min-height: 180px;
        height: auto;
        max-height: none;
        padding: 24px 10px;
    }
    .organizers-grid {
        flex-direction: column;
        gap: 10px !important;
    }
}
.organizer-logo {
    font-size: 4rem;
    margin-bottom: 20px;
}

.organizer-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
    line-height: 1.4;
}

.organizer-card p {
    color: #7f8c8d;
    margin: 0;
}

/* Contact Section */
.contact-section {
    background-color: #2c3e50; /* Темно-синий фон */
    color: #ecf0f1; /* Светлый цвет текста */
    padding: 60px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
}

.contact-info h2 {
    color: #fff;
    margin-bottom: 20px;
}

.contact-info p {
    color: #bdc3c7; /* Более светлый серый для параграфов */
    margin-bottom: 20px;
}

.contact-person {
    margin-bottom: 25px;
}

.contact-person h4 {
    color: #3498db; /* Синий акцент для имен */
    margin-bottom: 5px;
}

.contact-person p {
    color: #ecf0f1;
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.contact-email {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.email-icon {
    font-size: 1.5rem;
}

.contact-email a {
    color: #e67e22; /* Оранжевый для email */
    text-decoration: none;
}
.contact-email a:hover {
    color: #f39c12; /* Светлее при наведении */
}

.contact-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-actions .btn-primary {
    background-color: #e67e22;
    border-color: #e67e22;
}
.contact-actions .btn-primary:hover {
    background-color: #f39c12;
    border-color: #f39c12;
}
.contact-actions .btn-secondary {
    background-color: transparent;
    border-color: #ecf0f1;
    color: #ecf0f1;
}
.contact-actions .btn-secondary:hover {
    background-color: #ecf0f1;
    color: #2c3e50;
}

.site-footer {
    background-color: #1f2a36; /* Еще темнее фон для футера */
    color: #bdc3c7;
    padding: 20px 0;
    font-size: 0.9rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #3e4c5a;
    flex-wrap: wrap;
}

.site-info p {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .about-grid, .directions-grid, .organizers-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-actions .btn {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        text-align: center;
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .about-grid,
    .directions-grid,
    .participation-grid,
    .organizers-grid,
    .contact-content,
    .venue-content {
        grid-template-columns: 1fr;
        flex-direction: column;
    }
    .tab-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    .tab-btn {
        width: 100%;
    }
    .schedule-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .time {
        margin-right: 0;
    }
    .dates-timeline::before {
        left: 15px;
        transform: translateX(0);
    }
    .timeline-item, .timeline-item:nth-child(even) {
        flex-direction: row !important;
    }
    .timeline-content {
        margin-left: 35px;
        margin-right: 0;
        flex: 1;
    }
    .timeline-date {
        margin-right: -18px;
    }
    .contact-content {
        gap: 40px;
        text-align: center;
    }
    .contact-actions {
        align-items: stretch;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 40px 0;
    }
    .hero-section {
        padding: 60px 0;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .date-item {
        font-size: 16px;
        justify-content: flex-start;
        text-align: left;
    }
    .hero-content {
        text-align: left;
    }
    .hero-actions {
        align-items: flex-start;
    }
    .hero-actions .btn {
        margin: 0;
    }
    .section-header h2 {
        font-size: 1.8rem;
    }
    .section-header {
        text-align: left;
    }
    .section-subtitle {
        margin: 0;
    }
    .about-card,
    .participation-card,
    .organizer-card {
        padding: 25px 20px;
        text-align: left;
    }
    .card-header {
        justify-content: flex-start;
    }
    .timeline-content {
        margin-left: 0px;
    }
    .timeline-date {
        padding: 8px 15px;
        font-size: 14px;
    }
    .contact-content {
        text-align: left;
    }
    .contact-actions {
        align-items: stretch;
    }
    .contact-email {
        justify-content: flex-start;
    }
    .direction-item {
        padding: 20px 15px;
    }
    .direction-item h4 {
        padding-right: 0;
    }
    .direction-number {
        position: static;
        float: right;
        margin-left: 10px;
    }
    .timeline-content {
        padding: 15px;
    }
}

html {
    scroll-behavior: smooth;
}

.header-actions {
    display: flex;
    align-items: center;
    width: 100%;
}
.main-menu {
    flex: 1 1 auto;
}
.logout-link {
    margin-left: 24px !important;
}
@media (max-width: 900px) {
    .header-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .main-menu {
        width: 100%;
        flex: none;
    }
    .logout-link {
        margin: 12px 0 0 0 !important;
        width: 100%;
        text-align: center;
        display: block;
    }
}

.date-anchor {
    text-decoration: none;
    cursor: pointer;
    color: inherit;
}
.date-anchor:hover {
    text-decoration: none;
    color: inherit;
}

.hero-section .date-anchor {
    text-decoration: none;
    cursor: pointer;
    color: inherit;
    transition: color 0.2s;
}
.hero-section .date-anchor:hover {
    color: #ffd600;
}

.site-date .date-anchor {
    text-decoration: none;
    cursor: pointer;
    color: inherit;
    transition: color 0.2s;
}
.site-date .date-anchor:hover {
    color: #ffd600;
}

/* Кнопка "Наверх" */
.scroll-to-top {
    position: fixed;
    bottom: 90px;
    right: 120px; /* смещаем левее reCAPTCHA */
    width: 50px;
    height: 50px;
    background: #007cba;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(0, 124, 186, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
}
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 110px;
        right: 110px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}
@media (max-width: 480px) {
    .scroll-to-top {
        bottom: 130px;
        right: 140px;
    }
}
.scroll-to-top:hover {
    background: #005a9c;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 124, 186, 0.4);
}
.scroll-to-top.show {
    display: flex;
}
/* Адаптивность для мобильных */
@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 600px) {
    .dates-section .timeline-content {
        border: 2px solid #3498db;
        max-width: 92vw;
        margin: 0 auto 18px auto;
        box-sizing: border-box;
        padding: 18px 10px;
    }
    .section-header h2,
    .section-subtitle,
    .about-card,
    .timeline-content,
    .organizer-card,
    .participation-card,
    .contact-content {
        padding-left: 10px;
        padding-right: 10px;
        margin-left: 0;
    }
}

@media (max-width: 900px) {
    .slide-caption {
        width: 75%;
        max-width: 90vw;
        min-width: 140px;
        padding: 0 4vw;
    }
}
@media (max-width: 600px) {
    .slide-caption {
        width: 70%;
        max-width: 90vw;
        min-width: 100px;
        padding: 0 2vw;
    }
}

@media (max-width: 600px) {
  .participants-slider-controls {
    position: static !important;
    margin-top: 16px;
    width: 100%;
    display: flex;
    justify-content: center;
    pointer-events: auto;
    top: auto !important;
    left: auto !important;
    right: auto !important;
  }
  .participants-slider-controls button {
    width: 44px;
    height: 44px;
    font-size: 1.7rem;
    margin: 0 14px;
    background: rgba(41,128,185,0.95);
    border-radius: 50% !important;
    border: 2px solid #fff;
    box-shadow: 0 4px 16px rgba(41,128,185,0.18);
    color: #fff;
    transition: background 0.2s, box-shadow 0.2s, border 0.2s;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .participants-slider-controls button:hover,
  .participants-slider-controls button:focus {
    background: #2980B9;
    box-shadow: 0 6px 24px rgba(41,128,185,0.28);
    border: 2px solid #ffd600;
    color: #fff;
  }
}

@media (max-width: 900px) {
    .section-title h2 {
        font-size: 2rem;
    }
}
@media (max-width: 600px) {
    .section-title h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 600px) {
  .dates-timeline {
    padding-left: 0;
    padding-right: 0;
  }
  .dates-timeline::before {
    left: 36px;
    width: 2px;
    top: 32px;
    bottom: 32px;
    height: auto;
    transform: none;
  }
  .timeline-item {
    flex-direction: column !important;
    align-items: flex-start !important;
    margin-bottom: 32px;
  }
  .timeline-date {
    margin: 0 0 8px 24px;
    align-self: flex-start;
    border-radius: 18px;
    min-width: 90px;
    font-size: 13px;
    padding: 7px 12px;
    z-index: 2;
  }
  .timeline-content {
    margin: 0;
    width: 100%;
  }
}

@media (max-width: 600px) {
  .timeline-item, .timeline-item:nth-child(even), .timeline-item:nth-child(odd) {
    flex-direction: column !important;
    align-items: flex-start !important;
  }
}

.venue-address {
  display: flex;
  align-items: center;
  gap: 8px;
}
.address-icon {
  font-size: 1.3em;
  margin-right: 6px;
  line-height: 1;
  display: flex;
  align-items: center;
}