/* ===== Глобальные стили ===== */
:root {
    --primary: #3949ab;
    --primary-dark: #283593;
    --primary-light: #5c6bc0;
    --secondary: #26a69a;
    --success: #4caf50;
    --danger: #f44336;
    --warning: #ff9800;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #eef2f7 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
}

/* ===== Навигация ===== */
.navbar {
    padding: 0.8rem 0;
    box-shadow: 0 2px 20px rgba(26, 35, 126, 0.15);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand-text {
    color: white;
    font-family: 'Poppins', sans-serif;
}

.brand-text span {
    color: #64b5f6;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    border-radius: 8px;
    margin: 0 2px;
    position: relative;
    overflow: hidden;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #64b5f6;
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 70%;
}

.admin-link {
    background: rgba(244, 67, 54, 0.2);
    color: #ffcdd2 !important;
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.dropdown-menu {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: 10px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    transform: translateX(5px);
}

/* ===== Главная страница ===== */
.site-index {
    padding: 2rem 0;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius);
    padding: 4rem 2rem;
    color: white;
    text-align: center;
    margin-bottom: 3rem;
    box-shadow: var(--shadow);
    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 1000 100"><path fill="%23ffffff" opacity="0.05" d="M0,0V100H1000V0C900,50 800,0 600,0C400,0 200,50 0,0Z"/></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-section h1 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.hero-section p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2rem;
    position: relative;
    z-index: 1;
}

.hero-btn {
    background: white;
    color: var(--primary);
    padding: 1rem 2.5rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    color: var(--primary-dark);
}

/* ===== Карусель ===== */
.carousel-container {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.carousel-item img {
    height: 400px;
    object-fit: cover;
}

.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: var(--transition);
}

.carousel:hover .carousel-control-prev,
.carousel:hover .carousel-control-next {
    opacity: 1;
}

.carousel-control-prev {
    left: 20px;
}

.carousel-control-next {
    right: 20px;
}

/* ===== Формы ===== */
.site-login,
.reg .col-lg-5,
.application-form {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    margin: 2rem auto;
    max-width: 500px;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.site-login h1,
.application-form h1,
.zagolovok h2 {
    color: var(--primary-dark);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.site-login h1::after,
.application-form h1::after,
.zagolovok h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.form-control {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    background: #fafafa;
}

.form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.25rem rgba(57, 73, 171, 0.15);
    background: white;
    transform: translateY(-1px);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
    display: block;
}

/* ===== Кнопки ===== */
.btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(57, 73, 171, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #388e3c 100%);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.3);
}

/* ===== Панели в анкете ===== */
.panel-default {
    border: none;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.panel-default:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.panel-heading {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: white;
    padding: 1.25rem 1.5rem;
    border: none;
}

.panel-title {
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}

.panel-title::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 4px;
    margin-right: 10px;
    opacity: 0.8;
}

.panel-body {
    padding: 1.5rem;
    background: white;
}

/* ===== Личный кабинет ===== */
.kabinet-default-index {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.application-item {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.application-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.application-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

/* ===== Футер ===== */
#footer {
    background: linear-gradient(135deg, var(--dark) 0%, #343a40 100%);
    color: #adb5bd;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-logo {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

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

/* ===== Адаптивность ===== */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 1rem;
    }

    .hero-section h1 {
        font-size: 2.2rem;
    }

    .carousel-item img {
        height: 300px;
    }

    .navbar-nav {
        padding: 1rem 0;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        margin: 2px 0;
    }

    .site-login,
    .reg .col-lg-5,
    .application-form {
        padding: 1.5rem;
        margin: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.8rem;
    }

    .carousel-item img {
        height: 250px;
    }

    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* ===== Анимации и эффекты ===== */
.fade-in {
    animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Иконки ===== */
.icon-circle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

/* ===== Статусные метки ===== */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

.status-new {
    background: #e3f2fd;
    color: #1976d2;
}

.status-processing {
    background: #fff3e0;
    color: #f57c00;
}

.status-completed {
    background: #e8f5e9;
    color: #388e3c;
}

/* ===== Загрузка файлов ===== */
.file-upload-area {
    border: 2px dashed #bdbdbd;
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: #f5f7ff;
}

.file-upload-area i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}