/* Современные переменные */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --dark: #0f172a;
    --light: #f8fafc;
    --success: #22c55e;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --black: #000000;
    --white: #ffffff;
    --accent: #ff3366;
    --gray: #f2f2f2;
    --dark-gray: #333333;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--black);
    line-height: 1.4;
}

/* Навигация */
.navbar {
    background: var(--black) !important;
    padding: 1.5rem 0;
}

.navbar-brand {
    font-size: 2rem;
    font-weight: 900;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: -1px;
}

.nav-link {
    color: var(--white) !important;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    padding: 0.5rem 1rem !important;
    border: 2px solid var(--white);
    margin-left: 1rem;
}

.nav-link:hover {
    background: var(--white);
    color: var(--black) !important;
}

/* Hero секция */
.hero-section {
    min-height: 100vh;
    background: var(--black);
    color: var(--white);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        var(--black) 0px,
        var(--black) 10px,
        var(--accent) 10px,
        var(--accent) 20px
    );
    opacity: 0.1;
}

.hero-section h1 {
    font-size: 5rem;
    font-weight: 900;
    line-height: 1;
    text-transform: uppercase;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.hero-section .lead {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 3rem;
    max-width: 600px;
    position: relative;
    z-index: 1;
}

/* Кнопки */
.btn {
    padding: 1rem 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid var(--black);
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all 0.3s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--black);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    transform: translateX(0);
}

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

.btn-primary:hover {
    color: var(--white);
    border-color: var(--accent);
}

.btn-outline-primary {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--black);
}

.btn-outline-primary:hover {
    color: var(--white);
    border-color: var(--black);
}

.hero-section .btn-outline-primary {
    background: var(--white);
    color: var(--black);
    border: 2px solid var(--white);
}

.hero-section .btn-outline-primary:hover {
    background: transparent;
    color: var(--white);
}

/* Карточки */
.card {
    background: var(--gray);
    border: none;
    border-radius: 0;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card-body {
    padding: 2rem;
    border: 2px solid var(--black);
    margin: 1rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.card-text {
    color: var(--dark-gray);
    font-size: 1.1rem;
}

/* Поиск */
.search-section {
    background: var(--gray);
    padding: 6rem 0;
}

.search-box {
    background: var(--white);
    padding: 2rem;
    border: 2px solid var(--black);
}

.search-box h3 {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.search-box h5 {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
}

.search-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gray);
    border: 2px solid var(--black);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-tag:hover {
    background: var(--black);
    color: var(--white);
}

.form-control {
    border: 2px solid var(--black);
    border-radius: 0;
    padding: 1rem;
    font-size: 1.1rem;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: none;
}

/* О нас */
#about {
    padding: 6rem 0;
    background: var(--white);
}

#about h2 {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

#about .lead {
    font-size: 1.5rem;
    color: var(--dark-gray);
    margin-bottom: 3rem;
}

/* Футер */
footer {
    background: var(--black);
    color: var(--white);
    padding: 4rem 0 2rem;
}

footer h5 {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

footer a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent);
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 6rem 0;
    }
    
    .hero-section h1 {
        font-size: 3rem;
    }
    
    .hero-section .lead {
        font-size: 1.25rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
}

/* Анимации */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-section, .card, .search-box {
    animation: slideIn 0.8s ease-out;
}