:root {
    /* --- Цветовая палитра --- */
    --primary-color: #c1a270;
    --primary-color-dark: #b39561;
    --text-color-light: #ffffff;
    --text-color-dark: #333333;
    --text-color-dark-special: #c1a270;
    --text-color-secondary: #7f8c9a;
    --background-color: #f4f5f7;
    --surface-color: #ffffff;
    --border-color: #e1e4e8;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
    --highlight-gradient: linear-gradient(45deg, #c1a270, #b39561);

    /* --- Типографика --- */
    --font-family: 'Inter', sans-serif;
    --font-size-base: 16px;
    --font-size-h1: 2.5rem;
    --font-size-h2: 2rem;
    --font-size-large: 1.2rem;
    --font-size-small: 0.9rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* --- Макет и отступы --- */
    --container-max-width: 1200px;
    --spacing-base: 1rem;
    --spacing-small: 0.5rem;
    --spacing-medium: 1.5rem;
    --spacing-large: 2.5rem;

    /* --- Интерфейсные элементы --- */
    --border-radius: 12px;
    --border-radius-small: 8px;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 8px 25px rgba(44, 62, 80, 0.1);
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color-dark);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   Шапка (Header) и Навигация
   ========================================================================== */
.header {
    background: var(--surface-color);
    padding: var(--spacing-base) 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.header-reference {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color-dark);
}

.header-logo {
    height: 45px;
    width: 45px;
    margin-right: var(--spacing-base);
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-medium);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color-secondary);
    font-weight: 600;
    font-size: 1rem;
    padding: var(--spacing-small) var(--spacing-base);
    border-radius: var(--border-radius-small);
    transition: all var(--transition-speed) ease;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--text-color-dark);
    background-color: #f0f0f0;
}

/* ==========================================================================
   Переключатель языков
   ========================================================================== */
.lang-switcher {
    display: flex;
    gap: var(--spacing-small);
    margin-left: var(--spacing-medium);
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color-secondary);
    padding: calc(var(--spacing-small) * 0.8) calc(var(--spacing-base) * 0.8);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-speed) ease;
    text-transform: uppercase;
}

.lang-btn:hover {
    background-color: #f0f0f0;
    color: var(--text-color-dark);
}

.lang-btn.active {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    border-color: var(--primary-color);
}

/* ==========================================================================
   Мобильное меню (Sidebar)
   ========================================================================== */
.mobile-menu-toggle {
    display: none; /* Скрыт по умолчанию */
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 10px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color-dark);
    margin: 5px 0;
    transition: all var(--transition-speed) ease;
}

.sidebar {
    position: fixed;
    top: 0;
    right: -280px; /* Скрыто за экраном */
    width: 280px;
    height: 100%;
    background-color: var(--surface-color);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    z-index: 1002;
    transition: right var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-medium);
}

.sidebar.active {
    right: 0; /* Показать меню */
}

.sidebar-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-large);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2.5rem;
    color: var(--text-color-secondary);
    cursor: pointer;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: var(--spacing-medium);
}

.sidebar-nav a {
    text-decoration: none;
    color: var(--text-color-dark);
    font-size: 1.2rem;
    font-weight: 600;
    padding: var(--spacing-small);
    display: block;
    border-radius: var(--border-radius-small);
}

.sidebar-nav a.active, .sidebar-nav a:hover {
    background-color: var(--background-color);
    color: var(--primary-color);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed) ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}


/* ==========================================================================
   Основной контент
   ========================================================================== */
.main {
    padding: var(--spacing-large) 0;
}

.main-title {
    font-size: var(--font-size-h2);
    font-weight: 700;
    margin-bottom: var(--spacing-base);
    color: var(--text-color-dark);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-large);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Кнопки --- */
.btn {
    border: none;
    padding: calc(var(--spacing-base) * 0.8) calc(var(--spacing-base) * 1.5);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    transition: all var(--transition-speed) ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-small);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.refresh-btn {
    background-color: var(--primary-color);
    color: var(--text-color-light);
}

.refresh-btn:hover {
    background-color: var(--primary-color-dark);
}

.back-btn {
    background-color: var(--border-color);
    color: var(--text-color-dark);
    margin-bottom: var(--spacing-medium);
}

.cta-btn {
    background: var(--highlight-gradient);
    color: var(--text-color-light);
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}


/* ==========================================================================
   Стили для главной страницы
   ========================================================================== */
#welcomeSection {
    text-align: center;
    margin-bottom: var(--spacing-large);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-medium);
    margin-bottom: var(--spacing-large);
}

.feature-card {
    background: var(--surface-color);
    padding: var(--spacing-medium);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-base);
}

.gallery-section {
    text-align: center;
    padding: var(--spacing-large) var(--spacing-medium);
    background-color: var(--surface-color);
    margin-top: var(--spacing-large);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
}

.gallery-title {
    font-size: var(--font-size-h2);
    margin-bottom: var(--spacing-medium);
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-medium);
}

.image-grid img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.image-grid img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-medium);
}

/* ==========================================================================
   Стили для страницы участников
   ========================================================================== */
#additional-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-medium);
}

#participant-quantity-section {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-small);
}
#participant-quantity-section .main-title {
    margin-bottom: 0;
}


#messageContainer {
    margin-bottom: var(--spacing-medium);
}
.message {
    text-align: center;
    padding: var(--spacing-base);
    border-radius: var(--border-radius-small);
    font-weight: var(--font-weight-medium);
    border: 1px solid transparent;
}
.message.loading {
    color: #004085;
    background-color: #cce5ff;
    border-color: #b8daff;
}
.message.error {
    color: var(--text-color-light);
    background-color: var(--error-color);
}
.message.success {
    color: var(--text-color-light);
    background-color: var(--success-color);
}

.controls-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-base);
    margin-bottom: var(--spacing-large);
}

.sort-controls {
    display: flex;
    gap: var(--spacing-small);
    flex-wrap: wrap;
    background-color: #e8ebee;
    padding: 5px;
    border-radius: var(--border-radius);
}

.sort-btn {
    background: transparent;
    color: var(--text-color-secondary);
    border: none;
    padding: calc(var(--spacing-small) * 1.6) var(--spacing-base);
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    transition: all var(--transition-speed) ease;
}

.sort-btn:hover {
    background: #dde1e5;
    color: var(--text-color-dark);
}

.sort-btn.active {
    background: var(--surface-color);
    color: var(--text-color-dark);
    box-shadow: var(--shadow-soft);
}

#search-input {
    padding: calc(var(--spacing-base) * 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    font-size: 0.9rem;
    flex-grow: 1;
    min-width: 180px;
    transition: border-color var(--transition-speed) ease;
}

.participants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-medium);
}

.participant-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    text-decoration: none;
    text-decoration-line: none;
}

.participant-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.participant-card .card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    padding: var(--spacing-base);
    background: var(--primary-color);
}

.participant-card .participant-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid var(--surface-color);
    flex-shrink: 0;
    object-fit: cover;
}

.participant-card .name-role-group {
    flex-grow: 1;
    color: var(--text-color-light);
}

.participant-card .participant-name {
    font-size: 1.4rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
}

.participant-card .participant-position {
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

.participant-card .card-body {
    padding: var(--spacing-base);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-small);
    flex-grow: 1;
}

.participant-card .info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-small) var(--spacing-base);
    background: #f8f9fa;
    border-radius: var(--border-radius-small);
    border-left: 4px solid var(--primary-color)
}

.participant-card .info-label {
    font-weight: var(--font-weight-medium);
    color: var(--text-color-secondary);
    font-size: 0.9rem;
}

.participant-card .info-value {
    font-weight: var(--font-weight-bold);
    font-size: 1rem;
    color: var(--text-color-dark-special);
}

.participant-card .info-value.balance-value {
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.coin-img {
    width: 22px;
    height: 22px;
    display: inline-block;
    object-fit: contain;
    vertical-align: middle;
}

/* --- Стили профиля --- */
.profile {
    max-width: 700px;
    margin: 0 auto;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
}

.profile-header {
    background: var(--highlight-gradient);
    padding: calc(var(--spacing-large) * 1.2);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color-light);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-medium);
    object-fit: cover;
    border: 4px solid var(--surface-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.profile-name {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-small);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.profile-position {
    font-size: 1.1rem;
    color: var(--text-color-light);
    opacity: 0.9;
}

.profile-content {
    padding: var(--spacing-large);
}

.profile-section {
    margin-bottom: var(--spacing-large);
}
.profile-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-base);
    padding-bottom: var(--spacing-small);
    border-bottom: 1px solid var(--border-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-medium);
}

.info-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-medium);
    text-align: center;
}

.info-card-title {
    font-size: var(--font-size-small);
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-small);
}

.info-card-value {
    font-size: 1.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color-dark);
}

.info-card-value.balance {
    color: var(--success-color);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.profile .coin-img {
    width: 32px;
    height: 32px;
    align-self: center;
    vertical-align: middle;
    display: inline-block;
}
.note-card-title {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-color-dark);
    margin-bottom: var(--spacing-small);
}
.note-card-value {
    font-size: 1rem; /* Adjusted for better readability */
    color: var(--text-color-dark); /* Changed for better contrast */
    margin-top: var(--spacing-small);
    display: block;
    white-space: pre-wrap;
    background-color: var(--background-color);
    padding: var(--spacing-base);
    border-radius: var(--border-radius-small);
    line-height: 1.5;
}


/* ==========================================================================
   Стили для страницы организаторов
   ========================================================================== */
.organizer-section {
    background-color: var(--surface-color);
    padding: var(--spacing-large);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    margin-top: var(--spacing-medium);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-large);
    align-items: flex-start;
}

.organizer-photo {
    flex-basis: 250px;
    flex-shrink: 0;
}

.organizer-photo img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.organizer-info {
    flex-basis: 0;
    flex-grow: 1;
    min-width: 300px;
}

.organizer-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-small);
}

.organizer-info .role {
    font-size: 1.2rem;
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-medium);
    font-weight: 600;
}

.organizer-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-medium);
}

.info-list {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-medium);
}

.info-list li {
    font-size: 1rem;
    margin-bottom: var(--spacing-small);
    padding-left: 1.5rem;
    position: relative;
}

.info-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.info-list li strong {
    color: var(--text-color-dark);
}

.sub-list {
    list-style-type: circle;
    padding-left: 2rem;
    margin-top: 0.5rem;
}

/* ==========================================================================
   Стили для прайс-листа
   ========================================================================== */
.pricing-section {
    padding: var(--spacing-large) var(--spacing-medium);
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    margin-top: var(--spacing-large);
    text-align: center;
}

.pricing-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-base);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-medium);
    margin-top: var(--spacing-large);
    margin-bottom: var(--spacing-large);
}

.pricing-card {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-large) var(--spacing-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid transparent;
    transition: all var(--transition-speed) ease;
}

.pricing-card:hover {
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.pricing-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color-dark);
    margin-bottom: var(--spacing-base);
}

.price-period {
    font-size: 1rem;
    color: var(--text-color-secondary);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-base);
    color: var(--text-color-secondary);
    text-align: left;
    flex-grow: 1;
}

.pricing-features li {
    margin-bottom: 0.7em;
    padding-left: 1.5em;
    position: relative;
}

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

/* ==========================================================================
   Адаптивность (Media Queries)
   ========================================================================== */
@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-h1: 2rem;
        --font-size-h2: 1.7rem;
    }
    
    .nav-menu {
        display: none; /* Скрываем десктопное меню */
    }

    .lang-switcher {
        margin-left: auto;
        margin-right: var(--spacing-base);
    }
    
    .mobile-menu-toggle {
        display: block; /* Показываем гамбургер */
    }

    .header-content {
        flex-wrap: nowrap;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }

    #additional-info, .controls-container {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    #participant-quantity-section {
        justify-content: center;
    }

    .sort-controls {
        justify-content: center;
    }

    #search-input {
        width: 100%;
    }

    .profile-header {
        padding: var(--spacing-large);
    }
    .profile-avatar {
        width: 100px;
        height: 100px;
    }
    .profile-name {
        font-size: 1.8rem;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .organizer-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: var(--spacing-medium);
    }
    .organizer-info h2 {
        font-size: 2rem;
    }
     .info-list li {
        padding-left: 0;
        text-align: left;
    }
    .info-list li::before {
        display: none;
    }
    .sub-list {
        text-align: left;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-base);
    }

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

    #additional-info {
        text-align: center;
    }

    .main-title {
        font-size: 1.5rem;
    }

    #participant-quantity-section h2 {
        font-size: 1.2rem;
    }
}