/* ===== Hero секция ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a2e 0%, #1a1a4e 50%, #0d47a1 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.1) 0%, transparent 50%);
    animation: heroPulse 8s ease-in-out infinite;
}

@keyframes heroPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
    text-shadow: 0 0 30px rgba(33, 150, 243, 0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-feature {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 1.5rem 2rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
    min-width: 180px;
}

.hero-feature:hover {
    transform: translateY(-5px);
    border-color: rgba(33, 150, 243, 0.5);
}

.hero-feature-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero-feature-title {
    color: #fff;
    font-weight: 600;
    font-size: 1.1rem;
}

.hero-feature-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* ===== Кнопка входа (glow-on-hover) ===== */
.glow-on-hover {
    width: 260px;
    height: 56px;
    border: none;
    outline: none;
    color: #fff;
    background: linear-gradient(-45deg, #2196F3, #1976D2, #0D47A1, #42A5F5, #2196F3);
    background-size: 400% 400%;
    animation: gradientFlow 4s ease infinite;
    cursor: pointer;
    position: relative;
    z-index: 0;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.3s ease;
}

.glow-on-hover:hover {
    transform: scale(1.05);
}

.glow-on-hover:before {
    content: '';
    background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
    position: absolute;
    top: -3px;
    left:-3px;
    background-size: 400%;
    z-index: -1;
    filter: blur(8px);
    width: calc(100% + 6px);
    height: calc(100% + 6px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity .3s ease-in-out;
    border-radius: 12px;
}

.glow-on-hover:active {
    color: #000;
}

.glow-on-hover:active:after {
    background: transparent;
}

.glow-on-hover:hover:before {
    opacity: 1;
}

.glow-on-hover:after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(-45deg, #2196F3, #1976D2, #0D47A1, #42A5F5, #2196F3);
    background-size: 400% 400%;
    animation: gradientFlow 4s ease infinite;
    left: 0;
    top: 0;
    border-radius: 12px;
}

@keyframes glowing {
    0% { background-position: 0 0; }
    50% { background-position: 400% 0; }
    100% { background-position: 0 0; }
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===== Секция "О нас" ===== */
.about-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    color: #1a1a4e;
    margin-bottom: 3rem;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.about-card {
    background: #fff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

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

.about-card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.about-card h5 {
    color: #1a1a4e;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.about-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ===== Футер ===== */
.landing-footer {
    background: #0a0a2e;
    color: rgba(255,255,255,0.6);
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
}

/* ===== Адаптивность ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-subtitle {
        font-size: 1.1rem;
    }
    .hero-features {
        gap: 1rem;
    }
    .hero-feature {
        min-width: 140px;
        padding: 1rem 1.5rem;
    }
}