/* Минималистичный дизайн с холодной палитрой */

/* Шрифты */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

:root {
    /* Холодная цветовая палитра */
    --primary-blue: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-blue: #64748b;
    --accent-blue: #0ea5e9;
    
    /* Нейтральные цвета */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Тени */
    --shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(15 23 42 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.1);
    --shadow-floating: 0 25px 50px -12px rgb(37 99 235 / 0.15);
    
    /* Переходы */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

/* Main */

main {
    padding: 1rem;
}

/* Dropdown меню */
.dropdown-menu {
    border: 1px solid var(--gray-200);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    visibility: hidden;
    pointer-events: none;
}

.dropdown-menu.show {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

.dropdown-item {
    color: var(--gray-700);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: block;
}

.dropdown-item:hover {
    background: var(--gray-50);
    color: var(--primary-blue);
}

.dropdown-toggle::after {
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
    margin-left: 0.5em;
    vertical-align: middle;
}

/* Убираем моргание dropdown */
.dropdown-menu {
    display: none;
}

.dropdown-menu.show {
    display: block;
}

/* Навигационная панель */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: all var(--transition-normal);
}

.navbar-brand {
    color: var(--primary-blue) !important;
    font-weight: 600;
    font-size: 1.5rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.navbar-brand:hover {
    color: var(--primary-dark) !important;
}

.navbar-nav .nav-link {
    color: var(--gray-600) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-blue) !important;
    background: var(--gray-50);
}

.navbar-nav .nav-link.active {
    color: var(--primary-blue) !important;
    background: rgba(37, 99, 235, 0.1);
}

/* Парящие элементы */
.floating-element {
    background: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

.floating-element:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-floating);
}

/* Кнопки */
.btn-primary,
.btn-success,
.btn-danger {
    border: none;
    border-radius: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    color: var(--white);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover,
.btn-success:hover,
.btn-danger:hover,
.btn-create:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:before,
.btn-success:before,
.btn-danger:before,
.btn-create:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover:before,
.btn-success:hover:before,
.btn-danger:hover:before,
.btn-create:hover:before {
    left: 100%;
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-success,
.btn-outline-danger {
    background: transparent;
    border-radius: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    color: var(--primary-blue);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: .2rem;
}

.btn-outline-danger {
    color: #dc3545;
}

.btn-outline-primary:hover,
.btn-outline-success:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-danger:hover {
    background: #dc3545;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary:before,
.btn-outline-success:before,
.btn-outline-danger:before,
.btn-outline-create:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-outline-primary:hover:before,
.btn-outline-success:hover:before,
.btn-outline-danger:hover:before,
.btn-outline-create:hover:before {
    left: 100%;
}

.btn-create {
    background-color: var(--primary-light) !important;
    color: white !important;
}

.btn-create:hover {
    background-color: var(--primary-light) !important;
    filter: brightness(.8);
}

/* Поля ввода */
.form-control {
    border: 2px solid var(--gray-200);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
}

/* Формы */
.form-label {
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-check {
    margin-bottom: 0;
}

.form-check-input {
    border: 2px solid var(--gray-300);
    border-radius: 0.375rem;
    transition: all var(--transition-fast);
}

.form-check-input:checked {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.form-check-input:focus {
    border-color: var(--primary-blue);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.25);
}

.form-check-label {
    color: var(--gray-700);
    cursor: pointer;
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Сетка */
.d-grid {
    display: grid !important;
}

.gap-2 {
    gap: 0.5rem !important;
}

.justify-content-center {
    justify-content: center !important;
}

/* Отступы */
.p-4 {
    padding: 1.5rem !important;
}

.mb-4 {
    margin-bottom: 1.5rem !important;
}

.mb-3 {
    margin-bottom: 1rem !important;
}

.mb-2 {
    margin-bottom: 0.5rem !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mt-4 {
    margin-top: 1.5rem !important;
}

.pt-4 {
    padding-top: 1.5rem !important;
}

/* Границы */
.border-top {
    border-top: 1px solid var(--gray-200) !important;
}

/* Текст */
.text-center {
    text-align: center !important;
}

.small {
    font-size: 0.875rem !important;
}

/* Кнопка в сетке */
.d-grid .btn {
    width: 100%;
}

/* Карточки */
.card {
    border: none;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
    background: var(--white);
}

.custom-modal-overlay {
    transform: none;
    box-shadow: none;  
}

.color-dot {
    display: inline-block;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: 1px solid rgba(0,0,0,0.1);
}


.card-header {
    background: linear-gradient(135deg, var(--gray-50), var(--white));
    border-bottom: 1px solid var(--gray-200);
    padding: 1.5rem;
}

.container {
    max-width: 1200px;
}

/* Подвал */
footer {
    background: var(--gray-900) !important;
    color: var(--gray-400) !important;
    padding: 2rem 0;
}

footer a {
    color: var(--gray-300) !important;
    text-decoration: none;
    transition: color var(--transition-fast);
}

footer a:hover {
    color: var(--primary-light) !important;
}

/* Хлебные крошки */
.breadcrumb {
    background: transparent;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.breadcrumb-item {
    color: var(--gray-500);
}

.breadcrumb-item.active {
    color: var(--gray-700);
}

.breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Уведомления */
.alert {
    border: none;
    border-radius: 0.75rem;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    color: #166534;
    border-left: 4px solid #22c55e;
}

.alert-info {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    color: #075985;
    border-left: 4px solid var(--accent-blue);
}

.alert-warning {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    color: #92400e;
    border-left: 4px solid #f59e0b;
}

.alert-danger {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

/* Иконки */
.icon {
    width: 48px;
    height: 48px;
    display: inline-block;
    vertical-align: middle;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.05));
    margin: 0 auto;
}

.feature-icon .icon {
    width: 40px;
    height: 40px;
}

/* Максимальная ширина */
.max-w-2xl {
    max-width: 700px;
}

/* Отступы */
.gap-3 {
    gap: 1rem;
}

/* Текстовые классы */
.text-primary {
    color: var(--primary-blue) !important;
}

.fw-light {
    font-weight: 300 !important;
}

.fw-semibold {
    font-weight: 600 !important;
}

.fw-bold {
    font-weight: 700 !important;
}

/* Размеры текста */
.display-6 {
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .display-6 {
        font-size: 2rem;
    }
}

/* Анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-normal) ease-out;
}

/* Адаптивность */
@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    main {
        padding: 1rem 0;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    /* Форма регистрации на мобильных */
    .row .col-md-6 {
        margin-bottom: 1rem;
    }
    
    .display-6 {
        font-size: 2rem;
    }
}

/* Тени для парящих элементов */
.floating-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.floating-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-floating);
}

.floating-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    border-radius: 1rem 1rem 0 0;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.floating-card:hover:before {
    opacity: 1;
}